{"id":4632,"date":"2026-04-05T20:28:32","date_gmt":"2026-04-05T13:28:32","guid":{"rendered":"https:\/\/hadupack.com\/?post_type=product&p=4632"},"modified":"2026-04-05T20:49:30","modified_gmt":"2026-04-05T13:49:30","slug":"mang-pe-chong-tham","status":"publish","type":"product","link":"https:\/\/hadupack.com\/en\/san-pham\/mang-pe-chong-tham\/","title":{"rendered":"M\u00e0ng PE ch\u1ed1ng th\u1ea5m"},"content":{"rendered":"

M\u00e0ng PE ch\u1ed1ng th\u1ea5m l\u00e0 g\u00ec?<\/strong><\/em><\/span><\/h2>\n

M\u00e0ng ch\u1ed1ng th\u1ea5m PE (Polyethylene) l\u00e0 m\u1ed9t lo\u1ea1i m\u00e0ng nh\u1ef1a t\u1ed5ng h\u1ee3p nh\u1eb9, d\u1ebbo v\u00e0 kh\u00e1ng h\u00f3a ch\u1ea5t, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u1ef1a polyethylene. N\u00f3 s\u1edf h\u1eefu c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ed1ng th\u1ea5m, ch\u1ed1ng \u1ea9m v\u00e0 ch\u1eafn tuy\u1ec7t v\u1eddi, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u00e1i nh\u00e0, t\u1ea7ng h\u1ea7m, c\u00e1c c\u00f4ng tr\u00ecnh th\u1ee7y l\u1ee3i (\u0111\u1eadp\/ao), nh\u00e0 k\u00ednh n\u00f4ng nghi\u1ec7p v\u00e0 bao b\u00ec c\u00f4ng nghi\u1ec7p. \u0110\u00e2y l\u00e0 v\u1eadt li\u1ec7u ch\u1ed1ng th\u1ea5m ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 d\u1ec5 l\u1eafp \u0111\u1eb7t.<\/span><\/p>\n\n\n\n
\"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u25c6<\/span>T\u00ecm hi\u1ec3u th\u00eam:<\/strong><\/em><\/span><\/p>\n

    \n
  1. https:\/\/hadupack.com\/san-pham\/mang-bao-ve\/<\/a><\/span><\/li>\n
  2. https:\/\/hadupack.com\/san-pham\/mang-pe-mau\/<\/a><\/span><\/li>\n
  3. https:\/\/hadupack.com\/san-pham\/mang-pe-quan-may\/<\/a><\/span><\/li>\n<\/ol>\n

    Quy tr\u00ecnh s\u1ea3n xu\u1ea5t m\u00e0ng PE ch\u1ed1ng th\u1ea5m<\/strong><\/em><\/span><\/h2>\n

    Quy tr\u00ecnh s\u1ea3n xu\u1ea5t m\u00e0ng ch\u1ed1ng th\u1ea5m PE (m\u00e0ng ch\u1ed1ng th\u1ea5m polyetylen) ch\u1ee7 y\u1ebfu bao g\u1ed3m \u0111\u1ecbnh l\u01b0\u1ee3ng nguy\u00ean li\u1ec7u, \u00e9p \u0111\u00f9n d\u1ebbo, th\u1ed5i khu\u00f4n (ho\u1eb7c \u0111\u00fac), l\u00e0m ngu\u1ed9i v\u00e0 \u0111\u1ecbnh h\u00ecnh, v\u00e0 cu\u1ed9n k\u00e9o. B\u1eb1ng c\u00e1ch nung ch\u1ea3y h\u1ea1t PE \u1edf nhi\u1ec7t \u0111\u1ed9 cao, th\u1ed5i ph\u1ed3ng ch\u00fang th\u00e0nh m\u00e0ng b\u1eb1ng kh\u00ed n\u00e9n, ho\u1eb7c \u00e9p \u0111\u00f9n ch\u00fang qua khu\u00f4n \u0111\u00fac, v\u00e0 t\u1ea1o h\u00ecnh ch\u00fang d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a v\u00f2ng kh\u00ed l\u00e0m m\u00e1t, m\u00e0ng \u0111\u01b0\u1ee3c t\u1ea1o kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc, ch\u1ed1ng \u1ea9m v\u00e0 \u0111\u1ed9 b\u1ec1n nh\u1ea5t \u0111\u1ecbnh. Quy tr\u00ecnh s\u1ea3n xu\u1ea5t c\u1ed1t l\u00f5i:<\/span><\/p>\n

    \u0110\u1ecbnh l\u01b0\u1ee3ng v\u00e0 tr\u1ed9n nguy\u00ean li\u1ec7u<\/strong><\/em><\/span><\/h3>\n
      \n
    1. S\u1eed d\u1ee5ng polyetylen (LDPE\/LLDPE\/HDPE) l\u00e0m nguy\u00ean li\u1ec7u c\u01a1 b\u1ea3n, th\u00eam ch\u1ea5t ch\u1ed1ng oxy h\u00f3a, ch\u1ea5t ch\u1ed1ng l\u00e3o h\u00f3a, ch\u1ea5t t\u1ea1o m\u00e0u v\u00e0 c\u00e1c ch\u1ea5t ph\u1ee5 gia kh\u00e1c.<\/span><\/li>\n
    2. C\u00e1c nguy\u00ean li\u1ec7u \u0111\u01b0\u1ee3c tr\u1ed9n k\u1ef9 trong thi\u1ebft b\u1ecb s\u1ea5y v\u00e0 tr\u1ed9n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng n\u00f3ng ch\u1ea3y.<\/span><\/li>\n<\/ol>\n

      \u00c9p \u0111\u00f9n d\u1ebbo<\/strong><\/em><\/span><\/h3>\n
        \n
      1. C\u00e1c nguy\u00ean li\u1ec7u \u0111\u00e3 tr\u1ed9n \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00e1y \u00e9p \u0111\u00f9n nh\u1ef1a, n\u01a1i ch\u00fang \u0111\u01b0\u1ee3c nung ch\u1ea3y th\u00e0nh h\u1ed7n h\u1ee3p \u0111\u1ed3ng nh\u1ea5t d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1eaft v\u00e0 gia nhi\u1ec7t c\u1ee7a tr\u1ee5c v\u00edt.<\/span><\/li>\n
      2. Nhi\u1ec7t \u0111\u1ed9 m\u00e1y \u00e9p \u0111\u00f9n c\u1ea7n \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh theo m\u1eadt \u0111\u1ed9 PE.<\/span><\/li>\n<\/ol>\n

        Quy tr\u00ecnh \u0111\u00fac khu\u00f4n<\/strong><\/em><\/span><\/h3>\n
          \n
        1. \u0110\u00fac th\u1ed5i (M\u00e0ng th\u1ed5i): Ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t. Ch\u1ea5t n\u00f3ng ch\u1ea3y \u0111\u01b0\u1ee3c \u0111\u00f9n qua khu\u00f4n tr\u00f2n \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t bong b\u00f3ng m\u00e0ng h\u00ecnh tr\u1ee5, sau \u0111\u00f3 \u0111\u01b0\u1ee3c th\u1ed5i ph\u1ed3ng \u0111\u1ebfn \u0111\u1ed9 d\u00e0y mong mu\u1ed1n b\u1eb1ng kh\u00ed n\u00e9n, t\u1ea1o ra m\u1ed9t m\u00e0ng c\u00f3 b\u1ec1 m\u1eb7t nh\u1eb5n \u1edf c\u1ea3 hai m\u1eb7t v\u00e0 \u0111\u1ed9 b\u1ec1n cao.<\/span><\/li>\n
        2. M\u00e0ng \u0111\u00fac: Ch\u1ea5t n\u00f3ng ch\u1ea3y \u0111\u01b0\u1ee3c \u0111\u00fac qua khu\u00f4n ch\u1eef T l\u00ean c\u00e1c con l\u0103n l\u00e0m m\u00e1t \u0111\u1ec3 l\u00e0m m\u00e1t v\u00e0 t\u1ea1o h\u00ecnh nhanh ch\u00f3ng, th\u00edch h\u1ee3p \u0111\u1ec3 s\u1ea3n xu\u1ea5t m\u00e0ng c\u00f3 \u0111\u1ed9 trong su\u1ed1t cao v\u00e0 ki\u1ec3m so\u00e1t \u0111\u1ed9 d\u00e0y ch\u00ednh x\u00e1c.<\/span><\/li>\n
        3. L\u00e0m m\u00e1t & K\u00e9o gi\u00e3n: Bong b\u00f3ng m\u00e0ng ho\u1eb7c m\u00e0ng \u0111\u00e3 h\u00ecnh th\u00e0nh c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m m\u00e1t b\u1eb1ng v\u00f2ng kh\u00ed \u0111\u1ec3 duy tr\u00ec \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a bong b\u00f3ng.<\/span><\/li>\n
        4. C\u00e1c con l\u0103n k\u00e9o gi\u00e3n li\u00ean t\u1ee5c k\u00e9o v\u00e0 l\u00e0m ph\u1eb3ng m\u00e0ng.<\/span><\/li>\n<\/ol>\n

          X\u1eed l\u00fd v\u00e0 v\u1eadn chuy\u1ec3n th\u00e0nh ph\u1ea9m:<\/strong><\/em><\/span><\/h3>\n
            \n
          1. C\u00e1n m\u00e0ng\/Ph\u1ee7 l\u1edbp: \u0110\u1ed1i v\u1edbi v\u1eadt li\u1ec7u d\u00e0y h\u01a1n ho\u1eb7c hai l\u1edbp, vi\u1ec7c c\u00e1n m\u00e0ng v\u1edbi v\u1ea3i n\u1ec1n ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng m\u00e1y c\u00e1n m\u00e0ng.<\/span><\/li>\n
          2. X\u1eed l\u00fd c\u1ea1nh v\u00e0 c\u1eaft r\u00e3nh: C\u00e1c c\u1ea1nh kh\u00f4ng \u0111\u1ec1u \u0111\u01b0\u1ee3c lo\u1ea1i b\u1ecf, v\u00e0 m\u00e0ng \u0111\u01b0\u1ee3c c\u1eaft r\u00e3nh theo chi\u1ec1u r\u1ed9ng c\u1ed1 \u0111\u1ecbnh theo y\u00eau c\u1ea7u.<\/span><\/li>\n
          3. Cu\u1ed9n v\u00e0 \u0111\u00f3ng g\u00f3i: M\u00e0ng \u0111\u01b0\u1ee3c cu\u1ed9n th\u00e0nh c\u00e1c cu\u1ed9n h\u00ecnh tr\u1ee5.<\/span><\/li>\n<\/ol>\n

            Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt ch\u00ednh<\/strong><\/em><\/span><\/h3>\n
              \n
            1. Ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9: Nhi\u1ec7t \u0111\u1ed9 n\u00f3ng ch\u1ea3y c\u1ee7a nh\u1ef1a, th\u01b0\u1eddng \u1edf \u00e1p su\u1ea5t cao.<\/span><\/li>\n
            2. T\u1ef7 l\u1ec7 th\u1ed5i ph\u1ed3ng v\u00e0 t\u1ef7 l\u1ec7 k\u00e9o gi\u00e3n: X\u00e1c \u0111\u1ecbnh \u0111\u1ed9 b\u1ec1n k\u00e9o ngang v\u00e0 d\u1ecdc c\u1ee7a m\u00e0ng.<\/span><\/li>\n
            3. T\u1ed1c \u0111\u1ed9 l\u00e0m ngu\u1ed9i: \u1ea2nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed9 k\u1ebft tinh, \u0111\u1ed9 trong su\u1ed1t v\u00e0 \u0111\u1ed9 b\u00f3ng b\u1ec1 m\u1eb7t c\u1ee7a m\u00e0ng.<\/span><\/li>\n<\/ol>\n\n\n\n
              \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

              \u0110\u1eb7c \u0111i\u1ec3m v\u00e0 \u01b0u \u0111i\u1ec3m c\u1ed1t l\u00f5i c\u1ee7a m\u00e0ng ch\u1ed1ng th\u1ea5m PE:<\/strong><\/em><\/span><\/h2>\n
                \n
              1. Ch\u1ed1ng th\u1ea5m v\u00e0 ch\u1ed1ng r\u00f2 r\u1ec9 tuy\u1ec7t v\u1eddi: Ng\u0103n ch\u1eb7n hi\u1ec7u qu\u1ea3 h\u01a1i \u1ea9m, b\u1ea3o v\u1ec7 c\u00e1c c\u00f4ng tr\u00ecnh kh\u1ecfi h\u01b0 h\u1ea1i do \u1ea9m m\u1ed1c.<\/span><\/li>\n
              2. T\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng k\u00e9o gi\u00e3n: V\u1eadt li\u1ec7u m\u1ec1m v\u00e0 ch\u1ed1ng r\u00e1ch, th\u00edch \u1ee9ng v\u1edbi s\u1ef1 l\u00fan nh\u1eb9 c\u1ee7a n\u1ec1n m\u00f3ng ho\u1eb7c c\u00e1c l\u1ef1c t\u00e1c \u0111\u1ed9ng t\u1eeb b\u00ean ngo\u00e0i.<\/span><\/li>\n
              3. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n h\u00f3a h\u1ecdc: \u1ed4n \u0111\u1ecbnh v\u1ec1 c\u1ea5u tr\u00fac, kh\u00f4ng d\u1ec5 ph\u1ea3n \u1ee9ng v\u1edbi axit, ki\u1ec1m ho\u1eb7c c\u00e1c h\u00f3a ch\u1ea5t kh\u00e1c, v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00e3o h\u00f3a t\u1ed1t.<\/span><\/li>\n
              4. V\u1eadt li\u1ec7u nh\u1eb9 v\u00e0 d\u1ec5 thi c\u00f4ng: C\u00f3 th\u1ec3 thi c\u00f4ng b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p n\u00f3ng ch\u1ea3y, h\u00e0n ho\u1eb7c d\u00e1n ngu\u1ed9i, gi\u1ea3m \u0111\u1ed9 kh\u00f3 v\u00e0 chi ph\u00ed thi c\u00f4ng.<\/span><\/li>\n<\/ol>\n\n\n\n
                \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                Ph\u00e2n lo\u1ea1i m\u00e0ng PE ch\u1ed1ng th\u1ea5m<\/strong><\/em><\/span><\/h2>\n

                M\u00e0ng ch\u1ed1ng th\u1ea5m PE (m\u00e0ng ch\u1ed1ng th\u1ea5m polyetylen) ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb polyetylen m\u1eadt \u0111\u1ed9 cao (HDPE) ho\u1eb7c polyetylen m\u1eadt \u0111\u1ed9 th\u1ea5p (LDPE) v\u00e0 thu\u1ed9c nh\u00f3m v\u1eadt li\u1ec7u ch\u1ed1ng th\u1ea5m polyme t\u1ed5ng h\u1ee3p. Ph\u00e2n lo\u1ea1i ph\u1ed5 bi\u1ebfn bao g\u1ed3m: theo t\u00ednh ch\u1ea5t v\u1eadt l\u00fd, \u0111\u01b0\u1ee3c chia th\u00e0nh Lo\u1ea1i I (lo\u1ea1i ti\u00eau chu\u1ea9n) v\u00e0 Lo\u1ea1i II (lo\u1ea1i gia c\u01b0\u1eddng); theo c\u1ea5u tr\u00fac, \u0111\u01b0\u1ee3c chia th\u00e0nh m\u00e0ng \u0111\u1ed3ng nh\u1ea5t (H), m\u00e0ng c\u00f3 l\u1edbp s\u1ee3i gia c\u01b0\u1eddng (L) v\u00e0 m\u00e0ng gia c\u01b0\u1eddng b\u1eb1ng v\u1ea3i (P); ngo\u00e0i ra, m\u00e0ng PE th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m l\u1edbp b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t c\u1ee7a m\u00e0ng ch\u1ed1ng th\u1ea5m t\u1ef1 d\u00ednh composite.<\/span><\/p>\n

                I. Ph\u01b0\u01a1ng ph\u00e1p ph\u00e2n lo\u1ea1i c\u1ed1t l\u00f5i<\/strong><\/em><\/span><\/h3>\n

                Ph\u00e2n lo\u1ea1i theo c\u1ea5u tr\u00fac th\u00e0nh ph\u1ea7n<\/strong><\/em><\/span><\/h4>\n
                  \n
                1. M\u00e0ng \u0111\u1ed3ng nh\u1ea5t (H): \u0110\u01b0\u1ee3c c\u1ea5u t\u1ea1o t\u1eeb v\u1eadt li\u1ec7u PE nguy\u00ean ch\u1ea5t, kh\u00f4ng c\u00f3 v\u1eadt li\u1ec7u gia c\u01b0\u1eddng ho\u1eb7c l\u1edbp l\u00f3t.<\/span><\/li>\n
                2. M\u00e0ng c\u00f3 l\u1edbp s\u1ee3i gia c\u01b0\u1eddng (L): M\u1eb7t d\u01b0\u1edbi \u0111\u01b0\u1ee3c c\u00e1n m\u00e0ng v\u1edbi v\u1ea3i kh\u00f4ng d\u1ec7t polyester, v.v., \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u00e1m d\u00ednh v\u1edbi b\u1ec1 m\u1eb7t n\u1ec1n.<\/span><\/li>\n
                3. M\u00e0ng gia c\u01b0\u1eddng b\u1eb1ng v\u1ea3i (P): L\u01b0\u1edbi s\u1ee3i th\u1ee7y tinh ho\u1eb7c v\u1ea3i polyester \u0111\u01b0\u1ee3c k\u1eb9p \u1edf gi\u1eefa \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a m\u00e0ng.<\/span><\/li>\n<\/ol>\n

                  Theo c\u00e1c ch\u1ec9 s\u1ed1 hi\u1ec7u su\u1ea5t v\u1eadt l\u00fd ch\u00ednh<\/strong><\/em><\/span><\/h4>\n
                    \n
                  1. Lo\u1ea1i I: C\u00e1c d\u1ef1 \u00e1n ch\u1ed1ng th\u1ea5m th\u00f4ng th\u01b0\u1eddng.<\/span><\/li>\n
                  2. Lo\u1ea1i II: C\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 gi\u00e3n d\u00e0i v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00e3o h\u00f3a cao h\u01a1n, ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c d\u1ef1 \u00e1n ch\u1ed1ng th\u1ea5m cao c\u1ea5p.<\/span><\/li>\n<\/ol>\n

                    M\u00e0ng ch\u1ed1ng th\u1ea5m composite PE (Lo\u1ea1i composite polymer)<\/strong><\/em><\/span><\/h4>\n

                    Lo\u1ea1i m\u00e0ng n\u00e0y s\u1eed d\u1ee5ng m\u00e0ng polyethylene (PE) l\u00e0m l\u1edbp ch\u1ed1ng th\u1ea5m ch\u00ednh, composite hai m\u1eb7t v\u1edbi v\u1ea3i kh\u00f4ng d\u1ec7t polypropylene (PP) ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c, k\u1ebft h\u1ee3p c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ed1ng th\u1ea5m c\u1ee7a polymer v\u00e0 li\u00ean k\u1ebft gia c\u01b0\u1eddng c\u1ee7a v\u1ea3i kh\u00f4ng d\u1ec7t. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong x\u00e2y d\u1ef1ng t\u1ea7ng h\u1ea7m v\u00e0 m\u00e1i nh\u00e0.<\/span><\/p>\n

                    II. Ph\u00e2n lo\u1ea1i theo tr\u1ea1ng th\u00e1i b\u1ec1 m\u1eb7t (Th\u01b0\u1eddng g\u1eb7p trong m\u00e0ng t\u1ef1 d\u00ednh)<\/strong><\/em><\/span><\/h3>\n
                      \n
                    1. Trong m\u00e0ng bitum bi\u1ebfn t\u00ednh polymer, PE th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t tr\u00ean c\u00f9ng, \u0111\u01b0\u1ee3c chia th\u00e0nh:<\/span><\/li>\n
                    2. M\u00e0ng PE b\u1ec1 m\u1eb7t: \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ed1ng d\u00ednh v\u00e0 ch\u1ed1ng th\u1ee7ng.<\/span><\/li>\n
                    3. M\u00e0ng PE t\u1ef1 d\u00ednh hai m\u1eb7t: M\u00e0ng PE b\u1ec1 m\u1eb7t k\u1ebft h\u1ee3p v\u1edbi l\u1edbp t\u1ef1 d\u00ednh.<\/span><\/li>\n<\/ol>\n

                      III. \u0110\u1eb7c \u0111i\u1ec3m v\u00e0 \u1ee9ng d\u1ee5ng ch\u00ednh<\/strong><\/em><\/span><\/h3>\n
                        \n
                      1. Polyethylene m\u1eadt \u0111\u1ed9 cao (HDPE): \u0110\u1ed9 b\u1ec1n cao, kh\u1ea3 n\u0103ng ch\u1ed1ng xuy\u00ean r\u1ec5 t\u1ed1t, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1i nh\u00e0 xanh v\u00e0 ch\u1ed1ng th\u1ea5m ng\u1ea7m.<\/span><\/li>\n
                      2. Polyethylene m\u1eadt \u0111\u1ed9 th\u1ea5p (LDPE): \u0110\u1ed9 d\u1ebbo t\u1ed1t v\u00e0 d\u1ec5 l\u1eafp \u0111\u1eb7t.<\/span><\/li>\n
                      3. \u1ee8ng d\u1ee5ng: Ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ed1ng th\u1ea5m m\u00e1i nh\u00e0, t\u1ea7ng h\u1ea7m, \u0111\u01b0\u1eddng h\u1ea7m v\u00e0 c\u00e1c d\u1ef1 \u00e1n ph\u00f2ng ch\u1ed1ng thi\u00ean tai trong c\u00e1c c\u00f4ng tr\u00ecnh c\u00f4ng nghi\u1ec7p v\u00e0 d\u00e2n d\u1ee5ng.<\/span><\/li>\n<\/ol>\n\n\n\n
                        \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                        C\u00e1c k\u1ecbch b\u1ea3n \u1ee9ng d\u1ee5ng chi ti\u1ebft ch\u00ednh:<\/strong><\/em><\/span><\/h2>\n
                          \n
                        1. K\u1ef9 thu\u1eadt x\u00e2y d\u1ef1ng: Ch\u1ed1ng th\u1ea5m t\u1ea7ng h\u1ea7m, ch\u1ed1ng th\u1ea5m m\u00e1i nh\u00e0, l\u1edbp ch\u1ed1ng th\u1ea5m nh\u00e0 b\u1ebfp v\u00e0 ph\u00f2ng t\u1eafm.<\/span><\/li>\n
                        2. \u0110\u00f4 th\u1ecb v\u00e0 th\u1ee7y l\u1ee3i: L\u00f3t b\u00e3i r\u00e1c, ng\u0103n ng\u1eeba r\u00f2 r\u1ec9 h\u1ed3 ch\u1ee9a\/k\u00eanh \u0111\u00e0o, tho\u00e1t n\u01b0\u1edbc \u0111\u01b0\u1eddng h\u1ea7m.<\/span><\/li>\n
                        3. \u1ee8ng d\u1ee5ng n\u00f4ng nghi\u1ec7p: M\u00e0ng ph\u1ee7 nh\u00e0 k\u00ednh, m\u00e0ng c\u00e1ch nhi\u1ec7t n\u00f4ng nghi\u1ec7p.<\/span><\/li>\n
                        4. Bao b\u00ec c\u00f4ng nghi\u1ec7p: B\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t s\u1ea3n ph\u1ea9m, l\u1edbp ph\u1ee7 ch\u1ed1ng th\u1ea5m m\u00e1y m\u00f3c.<\/span><\/li>\n<\/ol>\n

                          L\u01b0u \u00fd: Ngo\u00e0i c\u00e1c d\u1ea1ng m\u00e0ng th\u00f4ng th\u01b0\u1eddng, PE th\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u1eed l\u00fd th\u00e0nh m\u00e0ng \u0111\u1ecba k\u1ef9 thu\u1eadt composite, k\u1ebft h\u1ee3p v\u1edbi v\u1ea3i \u0111\u1ecba k\u1ef9 thu\u1eadt \u0111\u1ee5c l\u1ed7 kim \u0111\u1ec3 c\u00f3 \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc cao h\u01a1n.<\/span><\/p>\n\n\n\n
                          \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          M\u1eb9o ch\u1ecdn m\u00e0ng PE ch\u1ed1ng th\u1ea5m<\/strong><\/em><\/span><\/h2>\n

                          Khi l\u1ef1a ch\u1ecdn m\u00e0ng ch\u1ed1ng th\u1ea5m PE (polyethylene), c\u1ea7n \u01b0u ti\u00ean l\u1ef1a ch\u1ecdn lo\u1ea1i ph\u00f9 h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 (v\u00ed d\u1ee5: t\u1ea7ng h\u1ea7m, m\u00e1i nh\u00e0, nh\u00e0 b\u1ebfp\/ph\u00f2ng t\u1eafm). V\u00ed d\u1ee5, polyethylene m\u1eadt \u0111\u1ed9 cao (HDPE) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho t\u1ea7ng h\u1ea7m, trong khi m\u00e0ng PE th\u00f4ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ch\u1ed1ng \u1ea9m trong nh\u00e0. C\u1ea7n ch\u00fa tr\u1ecdng \u0111\u1ebfn kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc, \u0111\u1ed9 b\u1ec1n x\u00e9 v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a l\u1edbp ch\u1ed1ng th\u1ea5m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u00e0ng kh\u00f4ng b\u1ecb l\u00e3o h\u00f3a ho\u1eb7c n\u1ee9t v\u1ee1 do \u0103n m\u00f2n h\u00f3a h\u1ecdc ho\u1eb7c \u0111i\u1ec1u ki\u1ec7n th\u1eddi ti\u1ebft kh\u1eafc nghi\u1ec7t. M\u00e0ng ch\u1ea5t l\u01b0\u1ee3ng cao c\u1ea7n c\u00f3 \u0111\u1ed9 b\u00e1m d\u00ednh t\u1ed1t v\u00e0 b\u00e1m ch\u1eafc v\u00e0o b\u1ec1 m\u1eb7t n\u1ec1n. H\u01b0\u1edbng d\u1eabn l\u1ef1a ch\u1ecdn m\u00e0ng ch\u1ed1ng th\u1ea5m PE:<\/span><\/p>\n\n\n\n
                          \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                          X\u00e1c \u0111\u1ecbnh lo\u1ea1i v\u00e0 \u1ee9ng d\u1ee5ng:<\/strong><\/em><\/span><\/h3>\n
                            \n
                          1. M\u00e0ng t\u1ef1 d\u00ednh polymer HDPE: Th\u00edch h\u1ee3p cho t\u1ea7ng h\u1ea7m, \u0111\u01b0\u1eddng h\u1ea7m, t\u00e0u \u0111i\u1ec7n ng\u1ea7m v\u00e0 c\u00e1c d\u1ef1 \u00e1n kh\u00e1c c\u1ea7n kh\u1ea3 n\u0103ng ch\u1ed1ng \u1ea9m ho\u1eb7c ch\u1ed1ng th\u1ee7ng l\u00e2u d\u00e0i.<\/span><\/li>\n
                          2. M\u00e0ng ch\u1ed1ng th\u1ea5m PE\/M\u00e0ng composite: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m l\u1edbp b\u1ea3o v\u1ec7 ch\u1ed1ng th\u1ea5m m\u00e1i nh\u00e0 ho\u1eb7c cho nh\u00e0 b\u1ebfp, ph\u00f2ng t\u1eafm v\u00e0 ch\u1ed1ng \u1ea9m trong nh\u00e0.<\/span><\/li>\n<\/ol>\n

                            Ki\u1ec3m tra t\u00ednh ch\u1ea5t v\u1eadt l\u00fd:<\/strong><\/em><\/span><\/h3>\n
                              \n
                            1. \u0110\u1ed9 d\u00e0y v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o: Ch\u1ecdn s\u1ea3n ph\u1ea9m c\u00f3 \u0111\u1ed9 d\u00e0y v\u1eeba ph\u1ea3i v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 b\u1ec1n x\u00e9 cao \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u00f4ng b\u1ecb v\u1ee1 d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a thi c\u00f4ng v\u00e0 m\u00f4i tr\u01b0\u1eddng.<\/span><\/li>\n
                            2. Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n h\u00f3a h\u1ecdc: N\u1ebfu s\u1eed d\u1ee5ng d\u01b0\u1edbi l\u00f2ng \u0111\u1ea5t, c\u1ea7n ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng l\u1ea1i s\u1ef1 \u0103n m\u00f2n c\u1ee7a axit v\u00e0 ki\u1ec1m trong \u0111\u1ea5t.<\/span><\/li>\n<\/ol>\n

                              T<\/strong>\u00ednh n\u0103ng t\u1ef1 d\u00ednh v\u00e0 thi c\u00f4ng:<\/strong><\/em><\/span><\/h3>\n
                                \n
                              1. \u0110\u1ed9 t\u1ef1 d\u00ednh: Ch\u1ecdn v\u1eadt li\u1ec7u d\u1ea1ng cu\u1ed9n c\u00f3 \u0111\u1ed9 t\u1ef1 d\u00ednh tuy\u1ec7t v\u1eddi (\u0111\u1eb7c bi\u1ec7t l\u00e0 HDPE t\u1ef1 d\u00ednh) \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 b\u00e1m d\u00ednh li\u1ec1n m\u1ea1ch v\u1edbi b\u1ec1 m\u1eb7t n\u1ec1n v\u00e0 ng\u0103n ng\u1eeba th\u1ea5m n\u01b0\u1edbc.<\/span><\/li>\n
                              2. Kh\u1ea3 n\u0103ng v\u1eadn h\u00e0nh: C\u00e2n nh\u1eafc t\u00ednh d\u1ec5 thi c\u00f4ng, tr\u1ecdng l\u01b0\u1ee3ng cu\u1ed9n ph\u00f9 h\u1ee3p v\u00e0 d\u1ec5 b\u1ea3o tr\u00ec sau khi l\u1eafp \u0111\u1eb7t.<\/span><\/li>\n<\/ol>\n

                                Ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 b\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng:<\/strong><\/em><\/span><\/h3>\n
                                  \n
                                1. Ti\u00eau chu\u1ea9n m\u00f4i tr\u01b0\u1eddng: \u0110\u1ea3m b\u1ea3o v\u1eadt li\u1ec7u th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng v\u00e0 kh\u00f4ng \u0111\u1ed9c h\u1ea1i cho m\u00f4i tr\u01b0\u1eddng trong nh\u00e0.<\/span><\/li>\n
                                2. Ki\u1ec3m tra nh\u00e3n m\u00e1c: Ghi r\u00f5 ngu\u1ed3n g\u1ed1c v\u00e0 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, v\u00e0 ch\u1ecdn s\u1ea3n ph\u1ea9m c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV, \u0111\u1eb7c bi\u1ec7t l\u00e0 \u0111\u1ed1i v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng ngo\u00e0i tr\u1eddi.<\/span><\/li>\n<\/ol>\n\n\n\n
                                  \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                  B\u1ea3o qu\u1ea3n m\u00e0ng PE ch\u1ed1ng th\u1ea5m<\/strong><\/em><\/span><\/h2>\n

                                  M\u00e0ng ch\u1ed1ng th\u1ea5m PE c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n \u1edf n\u01a1i kh\u00f4 r\u00e1o, tho\u00e1ng m\u00e1t (10\u00b0C \u0111\u1ebfn 40\u00b0C), tr\u00e1nh \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp, nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 tia c\u1ef1c t\u00edm \u0111\u1ec3 ng\u0103n ng\u1eeba l\u00e3o h\u00f3a v\u00e0 gi\u00f2n. S\u1ea3n ph\u1ea9m ho\u00e0n thi\u1ec7n n\u00ean \u0111\u01b0\u1ee3c x\u1ebfp ch\u1ed3ng th\u1eb3ng \u0111\u1ee9ng ho\u1eb7c g\u1ecdn g\u00e0ng trong bao b\u00ec g\u1ed1c, tr\u00e1nh ch\u1ecbu \u00e1p l\u1ef1c n\u1eb7ng, v\u00e0 t\u1ed1t nh\u1ea5t n\u00ean s\u1eed d\u1ee5ng trong v\u00f2ng 12 th\u00e1ng k\u1ec3 t\u1eeb ng\u00e0y s\u1ea3n xu\u1ea5t.<\/span><\/p>\n

                                  \u0110i\u1ec3m c\u1ea7n l\u01b0u \u00fd khi b\u1ea3o qu\u1ea3n:<\/strong><\/em><\/span><\/p>\n

                                    \n
                                  1. Ki\u1ec3m so\u00e1t m\u00f4i tr\u01b0\u1eddng: B\u1ea3o qu\u1ea3n trong kho kh\u00f4 r\u00e1o, tho\u00e1ng m\u00e1t, tr\u00e1nh xa l\u1eeda v\u00e0 ngu\u1ed3n nhi\u1ec7t. Ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi s\u1ebd l\u00e0m m\u00e0ng b\u1ecb gi\u00f2n v\u00e0 r\u00fat ng\u1eafn tu\u1ed5i th\u1ecd.<\/span><\/li>\n
                                  2. X\u1ebfp ch\u1ed3ng \u0111\u00fang c\u00e1ch: C\u00e1c cu\u1ed9n n\u00ean \u0111\u01b0\u1ee3c x\u1ebfp ch\u1ed3ng th\u1eb3ng \u0111\u1ee9ng ho\u1eb7c b\u1ea3o qu\u1ea3n tr\u00ean pallet theo bao b\u00ec g\u1ed1c. Kh\u00f4ng \u0111\u1eb7t c\u00e1c v\u1eadt n\u1eb7ng kh\u00e1c l\u00ean tr\u00ean c\u00e1c cu\u1ed9n \u0111\u1ec3 tr\u00e1nh b\u1ecb bi\u1ebfn d\u1ea1ng.<\/span><\/li>\n
                                  3. Gi\u1eef k\u00edn: Gi\u1eef nguy\u00ean bao b\u00ec g\u1ed1c c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t \u0111\u1ec3 tr\u00e1nh \u1ea9m v\u00e0 nhi\u1ec5m b\u1ea9n.<\/span><\/li>\n
                                  4. Th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng: Trong \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n t\u1ed1i \u01b0u, m\u00e0ng PE th\u01b0\u1eddng c\u00f3 th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng l\u00e0 12 th\u00e1ng k\u1ec3 t\u1eeb ng\u00e0y s\u1ea3n xu\u1ea5t. N\u00ean s\u1eed d\u1ee5ng trong v\u00f2ng 6 th\u00e1ng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t t\u1ed1i \u01b0u.<\/span><\/li>\n
                                  5. Tr\u00e1nh \u00e1nh s\u00e1ng v\u00e0 \u0111\u1ed9 \u1ea9m: Tr\u00e1nh ti\u1ebfp x\u00fac l\u00e2u v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi v\u00e0 m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt.<\/span><\/li>\n<\/ol>\n\n\n\n
                                    \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                    C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p m\u00e0ng PE ch\u1ed1ng th\u1ea5m<\/strong><\/em><\/span><\/h2>\n

                                    C\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u1edbi m\u00e0ng ch\u1ed1ng th\u1ea5m PE (polyethylene) bao g\u1ed3m: kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t k\u00e9m (d\u1ec5 b\u1ecb m\u1ec1m v\u00e0 bi\u1ebfn d\u1ea1ng tr\u00ean 80\u00b0C), l\u00e3o h\u00f3a v\u00e0 gi\u00f2n do ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi, \u0111\u1ed9 b\u00e1m d\u00ednh k\u00e9m ho\u1eb7c b\u1ecb bong tr\u00f3c \u1edf c\u1ea3 hai \u0111\u1ea7u, c\u1eb7n keo v\u00e0 \u0111\u1ed9 b\u1ec1n x\u00e9 kh\u00f4ng \u0111\u1ee7 trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n nh\u1ea5t \u0111\u1ecbnh. \u0110\u1ec3 tr\u00e1nh nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y, c\u1ea7n ki\u1ec3m so\u00e1t nhi\u1ec7t \u0111\u1ed9 thi c\u00f4ng, b\u1ea3o v\u1ec7 kh\u1ecfi tia UV v\u00e0 \u0111\u1ea3m b\u1ea3o b\u1ec1 m\u1eb7t thi c\u00f4ng s\u1ea1ch s\u1ebd.\u00a0Ph\u00e2n t\u00edch c\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p c\u1ee7a m\u00e0ng ch\u1ed1ng th\u1ea5m PE (ho\u1eb7c v\u1ea3i ch\u1ed1ng th\u1ea5m):<\/span><\/p>\n\n\n\n
                                    \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                    1. L\u00e3o h\u00f3a v\u00e0 gi\u00f2n v\u1eadt l\u00fd:<\/strong><\/em><\/span><\/h3>\n
                                      \n
                                    1. V\u1ea5n \u0111\u1ec1: Ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi ngo\u00e0i tr\u1eddi s\u1ebd khi\u1ebfn m\u00e0ng ch\u1ed1ng th\u1ea5m PE b\u1ecb oxy h\u00f3a quang h\u1ecdc do b\u1ee9c x\u1ea1 tia c\u1ef1c t\u00edm (UV), d\u1eabn \u0111\u1ebfn l\u00e3o h\u00f3a v\u1eadt li\u1ec7u, c\u1ee9ng l\u1ea1i, gi\u00f2n v\u00e0 th\u1eadm ch\u00ed n\u1ee9t n\u1ebb, d\u1eabn \u0111\u1ebfn m\u1ea5t ch\u1ee9c n\u0103ng ch\u1ed1ng th\u1ea5m.<\/span><\/li>\n
                                    2. Khuy\u1ebfn ngh\u1ecb: Ch\u1ecdn s\u1ea3n ph\u1ea9m c\u00f3 th\u00eam ch\u1ea5t \u1ed5n \u0111\u1ecbnh tia UV ho\u1eb7c c\u00f4ng th\u1ee9c ch\u1ed1ng n\u1eafng v\u00e0 ch\u1ed1ng l\u00e3o h\u00f3a, v\u00e0 tr\u00e1nh ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi m\u1ea1nh.<\/span><\/li>\n<\/ol>\n

                                      2. Kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t th\u1ea5p v\u00e0 d\u1ec5 bi\u1ebfn d\u1ea1ng:<\/strong><\/em><\/span><\/h3>\n
                                        \n
                                      1. V\u1ea5n \u0111\u1ec1: V\u1eadt li\u1ec7u PE c\u00f3 nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, x\u1ea5p x\u1ec9 80 \u0111\u1ed9 C \u0111\u1ed1i v\u1edbi LDPE (m\u1eadt \u0111\u1ed9 th\u1ea5p) v\u00e0 120 \u0111\u1ed9 C \u0111\u1ed1i v\u1edbi HDPE (m\u1eadt \u0111\u1ed9 cao). Ti\u1ebfp x\u00fac l\u00e2u d\u00e0i v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c ngu\u1ed3n nhi\u1ec7t s\u1ebd l\u00e0m m\u00e0ng m\u1ec1m v\u00e0 bi\u1ebfn d\u1ea1ng d\u1ebbo.<\/span><\/li>\n
                                      2. Khuy\u1ebfn ngh\u1ecb: Kh\u00f4ng th\u00edch h\u1ee3p cho c\u00e1c b\u1ec1 m\u1eb7t ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao, \u00e1nh n\u1eafng m\u1eb7t tr\u1eddi gay g\u1eaft ho\u1eb7c ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi v\u1eadt n\u00f3ng.<\/span><\/li>\n<\/ol>\n\n\n\n
                                        \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                        3. C\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 thi c\u00f4ng v\u00e0 b\u00f3c t\u00e1ch (Th\u01b0\u1eddng g\u1eb7p v\u1edbi m\u00e0ng b\u1ea3o v\u1ec7):<\/strong><\/em><\/span><\/h3>\n
                                          \n
                                        1. \u0110\u1ed9 b\u00e1m d\u00ednh k\u00e9m: \u0110\u1ed9 nh\u1edbt c\u1ee7a ch\u1ea5t k\u1ebft d\u00ednh nh\u1ea1y \u00e1p PE kh\u00f4ng \u0111\u1ee7, \u00e1p su\u1ea5t kh\u00f4ng \u0111\u1ee7 ho\u1eb7c b\u1ee5i b\u1ea9n (b\u1ee5i, d\u1ea7u) tr\u00ean b\u1ec1 m\u1eb7t m\u00e0ng.<\/span><\/li>\n
                                        2. Bong tr\u00f3c \u1edf c\u1ea3 hai \u0111\u1ea7u: K\u00e9o c\u0103ng qu\u00e1 m\u1ee9c trong qu\u00e1 tr\u00ecnh thi c\u00f4ng, d\u1eabn \u0111\u1ebfn co r\u00fat khi ti\u1ebfp x\u00fac v\u1edbi nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c dao \u0111\u1ed9ng nhi\u1ec7t \u0111\u1ed9 sau \u0111\u00f3.<\/span><\/li>\n
                                        3. C\u1eb7n keo: M\u1ed9t s\u1ed1 keo c\u00f2n s\u00f3t l\u1ea1i tr\u00ean b\u1ec1 m\u1eb7t sau khi b\u00f3c, do keo kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1edbi v\u1eadt li\u1ec7u ho\u1eb7c do l\u00e3o h\u00f3a.<\/span><\/li>\n<\/ol>\n

                                          4. H\u1ea1n ch\u1ebf v\u1ec1 \u0111\u1ed9 b\u1ec1n v\u00e0 v\u1ea5n \u0111\u1ec1 r\u00e1ch:<\/strong><\/em><\/span><\/h3>\n
                                            \n
                                          1. V\u1ea5n \u0111\u1ec1: M\u1eb7c d\u00f9 PE c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ee7ng t\u1ed1t, nh\u01b0ng n\u00f3 d\u1ec5 b\u1ecb r\u00e1ch d\u01b0\u1edbi l\u1ef1c t\u1eadp trung t\u1eeb c\u00e1c v\u1eadt s\u1eafc nh\u1ecdn. So v\u1edbi PVC, \u0111\u1ed9 b\u1ec1n k\u00e9o d\u00e0i h\u1ea1n c\u1ee7a n\u00f3 th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat.<\/span><\/li>\n
                                          2. Khuy\u1ebfn ngh\u1ecb: B\u1ec1 m\u1eb7t thi c\u00f4ng ph\u1ea3i s\u1ea1ch \u0111\u1ec3 tr\u00e1nh c\u00f3 c\u00e1t ho\u1eb7c s\u1ecfi s\u1eafc nh\u1ecdn.<\/span><\/li>\n<\/ol>\n\n\n\n
                                            \"\"<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                            5. Kh\u00f3 v\u1ec7 sinh v\u00e0 b\u1ea3o tr\u00ec:<\/strong><\/em><\/span><\/h3>\n
                                              \n
                                            1. V\u1ea5n \u0111\u1ec1: B\u1ee5i b\u1ea9n d\u1ec5 b\u00e1m v\u00e0o b\u1ec1 m\u1eb7t th\u00f4 r\u00e1p ho\u1eb7c d\u00ednh d\u1ea7u m\u1ee1, khi\u1ebfn v\u1ea3i b\u1ea1t PE th\u00f4ng th\u01b0\u1eddng kh\u00f3 l\u00e0m s\u1ea1ch.<\/span><\/li>\n
                                            2. Khuy\u1ebfn ngh\u1ecb: S\u1eed d\u1ee5ng n\u01b0\u1edbc s\u1ea1ch v\u00e0 b\u00e0n ch\u1ea3i m\u1ec1m \u0111\u1ec3 ch\u00e0 nh\u1eb9 nh\u00e0ng. Tr\u00e1nh s\u1eed d\u1ee5ng dung m\u00f4i m\u1ea1nh \u0111\u1ec3 tr\u00e1nh l\u00e0m h\u1ecfng v\u1eadt li\u1ec7u. <\/span><\/li>\n<\/ol>\n

                                              T\u00f3m t\u1eaft v\u00e0 khuy\u1ebfn ngh\u1ecb vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang \u0111\u1ed9 d\u00e0y c\u1ee7a m\u00e0ng PE (v\u00ed d\u1ee5: HDPE c\u1ee9ng h\u01a1n, LDPE d\u1ebbo h\u01a1n), t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng ch\u1ed1ng tia UV v\u00e0 s\u1eed d\u1ee5ng ph\u00f9 h\u1ee3p trong m\u00f4i tr\u01b0\u1eddng c\u00f3 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 t\u1ed1i thi\u1ec3u c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c h\u1ea7u h\u1ebft c\u00e1c v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

                                              M\u00e0ng PE ch\u1ed1ng th\u1ea5m l\u00e0 g\u00ec? M\u00e0ng ch\u1ed1ng th\u1ea5m PE (Polyethylene) l\u00e0 m\u1ed9t lo\u1ea1i m\u00e0ng nh\u1ef1a t\u1ed5ng h\u1ee3p nh\u1eb9, d\u1ebbo v\u00e0 kh\u00e1ng h\u00f3a ch\u1ea5t, ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb nh\u1ef1a polyethylene. N\u00f3 s\u1edf h\u1eefu c\u00e1c \u0111\u1eb7c t\u00ednh ch\u1ed1ng th\u1ea5m, ch\u1ed1ng \u1ea9m v\u00e0 ch\u1eafn tuy\u1ec7t v\u1eddi, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong m\u00e1i nh\u00e0, t\u1ea7ng h\u1ea7m, … <\/p>\n

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