Ch\u1ea5t r\u1eafn m\u00e0u tr\u1eafng ho\u1eb7c v\u00e0ng nh\u1ea1t, tan trong benzen, toluen, clorobenzen, nitrobenzen, axeton, ete, etyl axetat, dioxan, v.v.<\/p>\n
\u1ee8ng d\u1ee5ng:\u00a0<\/strong><\/p>\n 1. S\u1ea3n ph\u1ea9m ch\u00ednh c\u1ee7a s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u1edbp ph\u1ee7 polyurethane. Ngo\u00e0i ra, n\u00f3 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong v\u1eadt li\u1ec7u ch\u1ed1ng th\u1ea5m, v\u1eadt li\u1ec7u b\u1ecbt k\u00edn, v\u1eadt li\u1ec7u g\u1ed1m, v.v.; b\u1ecdt polyurethane l\u00e0m t\u1eeb s\u1ea3n ph\u1ea9m n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m b\u1ed9 ph\u1eadn c\u00e1ch nhi\u1ec7t (l\u1ea1nh), v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng, xe c\u1ed9 v\u00e0 t\u00e0u thuy\u1ec1n. ; C\u00e1c s\u1ea3n ph\u1ea9m tinh ch\u1ebf c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o th\u00e0nh c\u1ea3n xe h\u01a1i, \u0111\u1ec7m, da t\u1ed5ng h\u1ee3p, polyurethane kh\u00f4ng ph\u1ea3i nh\u1ef1a, s\u1ee3i \u0111\u00e0n h\u1ed3i polyurethane, s\u1ee3i \u0111\u00e0n h\u1ed3i kh\u00f4ng ph\u1ea3i nh\u1ef1a, m\u00e0ng, ch\u1ea5t k\u1ebft d\u00ednh, v.v.<\/p>\n 2. MDI l\u00e0 t\u00ean g\u1ecdi chung c\u1ee7a 4,4'diphenylmethane diisocyanate (MDI tinh khi\u1ebft), m\u1ed9t h\u1ed7n h\u1ee3p ch\u1ee9a m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh c\u1ee7a MDI tinh khi\u1ebft v\u00e0 polyphenylpolymethylene polyisocyanate (MDI tr\u00f9ng h\u1ee3p), v\u00e0 c\u00e1c s\u1ea3n ph\u1ea9m bi\u1ebfn \u0111\u1ed5i c\u1ee7a MDI tinh khi\u1ebft v\u00e0 MDI tr\u00f9ng h\u1ee3p. , l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 s\u1ea3n xu\u1ea5t polyurethane. M\u1ed9t l\u01b0\u1ee3ng nh\u1ecf MDI \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c kh\u00eda c\u1ea1nh kh\u00e1c ngo\u00e0i polyurethane. Polyurethane c\u00f3 \u0111\u1ed9 \u0111\u00e0n h\u1ed3i c\u1ee7a cao su, \u0111\u1ed9 b\u1ec1n v\u00e0 t\u00ednh ch\u1ea5t gia c\u00f4ng tuy\u1ec7t v\u1eddi c\u1ee7a nh\u1ef1a, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1ec1 kh\u1ea3 n\u0103ng c\u00e1ch nhi\u1ec7t, c\u00e1ch \u00e2m, ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1ed1ng d\u1ea7u, \u0111\u1ed9 \u0111\u00e0n h\u1ed3i, v.v. N\u00f3 c\u00f3 nh\u1eefng \u01b0u \u0111i\u1ec3m m\u00e0 c\u00e1c v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p kh\u00e1c kh\u00f4ng th\u1ec3 s\u00e1nh \u0111\u01b0\u1ee3c. L\u00e0 lo\u1ea1i nh\u1ef1a l\u1edbn th\u1ee9 s\u00e1u sau ethylene, polypropylene, polystyrene v\u00e0 ABS (hi\u1ec7n \u0111\u00e3 v\u01b0\u1ee3t qua ABS \u0111\u1ec3 tr\u1edf th\u00e0nh lo\u1ea1i nh\u1ef1a l\u1edbn th\u1ee9 n\u0103m), n\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c qu\u1ed1c ph\u00f2ng, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, c\u00f4ng nghi\u1ec7p nh\u1eb9, c\u00f4ng nghi\u1ec7p h\u00f3a ch\u1ea5t, d\u1ea7u kh\u00ed, d\u1ec7t may, v\u1eadn t\u1ea3i, \u00f4 t\u00f4, y t\u1ebf, v.v., tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u m\u1edbi n\u1ed5i kh\u00f4ng th\u1ec3 thi\u1ebfu cho s\u1ef1 ph\u00e1t tri\u1ec3n kinh t\u1ebf v\u00e0 cu\u1ed9c s\u1ed1ng c\u1ee7a ng\u01b0\u1eddi d\u00e2n. Gi\u1ea5y ch\u1ee9ng nh\u1eadn ph\u00e2n t\u00edch:<\/b><\/p>\n \u0110\u00f3ng g\u00f3i v\u00e0 b\u1ea3o qu\u1ea3n:<\/p>\n Th\u00f9ng s\u1eaft 250 kg ch\u1ee9a \u0111\u1ea7y kh\u00ed nit\u01a1<\/p>\n Trong \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb, th\u1eddi h\u1ea1n s\u1eed d\u1ee5ng c\u1ee7a DMI l\u00e0 m\u1ed9t n\u0103m k\u1ec3 t\u1eeb ng\u00e0y s\u1ea3n xu\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":" T\u00ean s\u1ea3n ph\u1ea9m: 4\uff0c4`-diphenylmethane diisocyanate\/Phenyl isocyanate (MDI)<\/p>\n CAS: 101-68-8<\/p>\n MF: C15H10N2O2<\/p>\n Ngo\u1ea1i quan: Ch\u1ea5t r\u1eafn m\u00e0u tr\u1eafng ho\u1eb7c v\u00e0ng nh\u1ea1t<\/p>","protected":false},"featured_media":5474,"template":"","meta":{"_acf_changed":false,"_gspb_post_css":""},"product_brand":[],"product_cat":[63],"product_tag":[],"class_list":{"0":"post-5473","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-industrial-chemicals","8":"first","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"_links":{"self":[{"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/product\/5473","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/product\/5473\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/media\/5474"}],"wp:attachment":[{"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/media?parent=5473"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/product_brand?post=5473"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/product_cat?post=5473"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/wpachem.com\/vi\/wp-json\/wp\/v2\/product_tag?post=5473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nMDI v\u00e0 TDI l\u00e0 ch\u1ea5t thay th\u1ebf cho nhau v\u00e0 \u0111\u1ec1u l\u00e0 nguy\u00ean li\u1ec7u th\u00f4 \u0111\u1ec3 s\u1ea3n xu\u1ea5t polyurethane. Gi\u00e1 c\u1ee7a MDI th\u1ea5p h\u01a1n m\u1ed9t ch\u00fat v\u00e0 \u0111\u1ed9c t\u00ednh c\u1ee7a n\u00f3 th\u1ea5p h\u01a1n TDI. Tuy nhi\u00ean, khi s\u1ea3n xu\u1ea5t b\u1ecdt, m\u1eadt \u0111\u1ed9 cao h\u01a1n h\u1ec7 th\u1ed1ng TDI. Kh\u1ea3 n\u0103ng t\u1ea1o h\u00ecnh c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m polyurethane \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1edfi MDI t\u01b0\u01a1ng \u0111\u1ed1i t\u1ed1t.<\/p>\n\n\n
\n M\u1ee5c ki\u1ec3m tra<\/td>\n \u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/td>\n<\/tr>\n \n V\u1ebb b\u1ec1 ngo\u00e0i<\/td>\n Ch\u1ea5t r\u1eafn m\u00e0u tr\u1eafng ho\u1eb7c v\u00e0ng nh\u1ea1t<\/td>\n<\/tr>\n \n \u0110i\u1ec3m n\u00f3ng ch\u1ea3y<\/td>\n 38-44 \u00b0C<\/td>\n<\/tr>\n \n \u0110i\u1ec3m s\u00f4i<\/td>\n 392 \u00b0C<\/td>\n<\/tr>\n \n \u0110i\u1ec3m ch\u1edbp ch\u00e1y<\/td>\n 196 \u00b0C<\/td>\n<\/tr>\n \n \u0110i\u1ec1u ki\u1ec7n l\u01b0u tr\u1eef<\/td>\n -20\u00b0C<\/td>\n<\/tr>\n \n \u0110i\u1ec3m \u0111\u00f3ng b\u0103ng<\/td>\n 37\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n