<\/span><\/h2>\nX\u00e3 h\u1ed9i ng\u00e0y c\u00e0ng ti\u1ebfn b\u1ed9, th\u1eddi th\u1ebf ng\u00e0y c\u00e0ng thay \u0111\u1ed5i, m\u00e0ng c\u0103ng PE ra \u0111\u1eddi gi\u00fap cho vi\u1ec7c \u0111\u00f3ng g\u00f3i s\u1ea3n ph\u1ea9m tr\u1edf n\u00ean d\u1ec5 d\u00e0ng h\u01a1n. D\u01b0\u1edbi \u0111\u00e2y, t\u00f2a so\u1ea1n s\u1ebd chia s\u1ebb cho c\u00e1c b\u1ea1n nh\u1eefng ki\u1ebfn \u200b\u200bth\u1ee9c v\u1ec1 c\u00f4ng th\u1ee9c s\u1ea3n xu\u1ea5t m\u00e0ng co gi\u00e3n PE.<\/span><\/p>\nC\u00f4ng th\u1ee9c m\u00e0ng k\u00e9o d\u00e0i l\u00e0 th\u00eam PIB ho\u1eb7c h\u1ea1t ch\u00ednh c\u1ee7a n\u00f3 v\u00e0o polyme, v\u00e0 c\u00f4ng th\u1ee9c kh\u00e1c l\u00e0 k\u1ebft h\u1ee3p VLDPE.<\/span><\/p>\nPIB l\u00e0 ch\u1ea5t l\u1ecfng nh\u1edbt trong m\u1edd. Vi\u1ec7c b\u1ed5 sung tr\u1ef1c ti\u1ebfp c\u1ea7n c\u00f3 thi\u1ebft b\u1ecb \u0111\u1eb7c bi\u1ec7t ho\u1eb7c thi\u1ebft b\u1ecb s\u1eeda \u0111\u1ed5i. N\u00f3i chung, PIB ch\u00ednh \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. C\u00f3 m\u1ed9t quy tr\u00ecnh \u0111\u1ec3 PIB chuy\u1ec3n \u0111i, th\u01b0\u1eddng m\u1ea5t ba ng\u00e0y. Ngo\u00e0i ra, n\u00f3 c\u00f2n b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec7t \u0111\u1ed9. Khi nhi\u1ec7t \u0111\u1ed9 cao, m\u00e0ng b\u1ecdc c\u00f3 \u0111\u1ed9 nh\u1edbt m\u1ea1nh, khi nhi\u1ec7t \u0111\u1ed9 th\u1ea5p, m\u00e0ng b\u1ecdc kh\u00f4ng qu\u00e1 d\u00ednh, v\u00e0 sau khi k\u00e9o gi\u00e3n \u0111\u1ed9 nh\u1edbt s\u1ebd gi\u1ea3m \u0111i r\u1ea5t nhi\u1ec1u.<\/span><\/p>\nKhi s\u1ed1 l\u01b0\u1ee3ng nguy\u00ean t\u1eed C trong comonomer c\u1ee7a v\u1eadt li\u1ec7u m\u00e0ng k\u00e9o t\u0103ng l\u00ean, chi\u1ec1u d\u00e0i nh\u00e1nh v\u00e0 \u0111\u1ed9 k\u1ebft tinh t\u0103ng l\u00ean, hi\u1ec7u \u1ee9ng v\u01b0\u1edbng ho\u1eb7c g\u1ea5p kh\u00fac c\u1ee7a ch\u1ea5t \u0111\u1ed3ng tr\u00f9ng h\u1ee3p t\u1ea1o ra t\u0103ng, \u0111\u1ed9 gi\u00e3n d\u00e0i c\u1ee7a m\u00e0ng c\u0103ng t\u0103ng l\u00ean, v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111\u00e2m th\u1ee7ng v\u00e0 x\u00e9 r\u00e1ch c\u1ee7a m\u00e0ng c\u0103ng c\u01b0\u1eddng \u0111\u1ed9 c\u0169ng t\u0103ng l\u00ean. H\u01a1n n\u1eefa, MPE l\u00e0 m\u1ed9t polyme l\u1eadp th\u1ec3 cao v\u1edbi ph\u00e2n b\u1ed1 kh\u1ed1i l\u01b0\u1ee3ng ph\u00e2n t\u1eed t\u01b0\u01a1ng \u0111\u1ed1i h\u1eb9p, c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t ch\u00ednh x\u00e1c c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd c\u1ee7a polyme, do \u0111\u00f3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a m\u00e0ng k\u00e9o d\u00e0i. V\u00e0 do ph\u00e2n b\u1ed1 tr\u1ecdng l\u01b0\u1ee3ng ph\u00e2n t\u1eed h\u1eb9p c\u1ee7a MPE, ph\u1ea1m vi x\u1eed l\u00fd h\u1eb9p v\u00e0 \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd kh\u00f3 ki\u1ec3m so\u00e1t, LDPE 5% th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3m \u0111\u1ed9 nh\u1edbt n\u00f3ng ch\u1ea3y v\u00e0 \u0111\u1ed9 ph\u1eb3ng c\u1ee7a m\u00e0ng b\u1ecdc. Ngo\u00e0i ra, m\u1eadt \u0111\u1ed9 c\u1ee7a v\u1eadt li\u1ec7u c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn hi\u1ec7u su\u1ea5t c\u1ee7a phim.<\/span><\/p>\n<\/span> M\u00e0ng PE m\u00e0u \u0111en t\u1ea1i B\u1eafc Giang<\/span><\/figcaption><\/figure>\n