{"id":692734,"date":"2024-09-11T23:37:10","date_gmt":"2024-09-11T22:37:10","guid":{"rendered":"https:\/\/www.thermal-engineering.org\/?p=692734"},"modified":"2024-09-11T23:37:10","modified_gmt":"2024-09-11T22:37:10","slug":"isobutylene-san-xuat-cao-su-tinh-nhiet-hoc","status":"publish","type":"post","link":"https:\/\/www.thermal-engineering.org\/vi\/isobutylene-san-xuat-cao-su-tinh-nhiet-hoc\/","title":{"rendered":"Isobutylene | S\u1ea3n Xu\u1ea5t Cao Su, T\u00ednh Nhi\u1ec7t H\u1ecdc"},"content":{"rendered":"

Isobutylene trong s\u1ea3n xu\u1ea5t cao su: T\u00ednh ch\u1ea5t nhi\u1ec7t h\u1ecdc v\u00e0 \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p \u0111\u1ec3 t\u1ea1o ra s\u1ea3n ph\u1ea9m cao su ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 b\u1ec1n b\u1ec9.<\/p>\n

\"Isobutylene<\/p>\n

Isobutylene: S\u1ea3n Xu\u1ea5t Cao Su v\u00e0 T\u00ednh Nhi\u1ec7t H\u1ecdc<\/h2>\n

Isobutylene, ho\u1eb7c 2-methylpropene, l\u00e0 m\u1ed9t hydrocarbon kh\u00f4ng no c\u00f3 c\u00f4ng th\u1ee9c h\u00f3a h\u1ecdc C4<\/sub>H8<\/sub>. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00f4ng nghi\u1ec7p do t\u00ednh ch\u1ea5t ph\u00f9 h\u1ee3p trong s\u1ea3n xu\u1ea5t cao su v\u00e0 l\u0129nh v\u1ef1c nhi\u1ec7t h\u1ecdc.<\/p>\n

S\u1ea3n Xu\u1ea5t Cao Su<\/h2>\n

Isobutylene l\u00e0 m\u1ed9t trong nh\u1eefng nguy\u00ean li\u1ec7u quan tr\u1ecdng trong s\u1ea3n xu\u1ea5t cao su butyl, m\u1ed9t lo\u1ea1i cao su t\u1ed5ng h\u1ee3p c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m t\u1ed1t. Qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t cao su butyl g\u1ed3m polymer h\u00f3a isobutylene v\u1edbi m\u1ed9t l\u01b0\u1ee3ng nh\u1ecf isoprene (kho\u1ea3ng 2%). Ph\u1ea3n \u1ee9ng polymer h\u00f3a n\u00e0y th\u01b0\u1eddng di\u1ec5n ra \u1edf nhi\u1ec7t \u0111\u1ed9 th\u1ea5p s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t x\u00fac t\u00e1c nh\u01b0 nh\u00f4m chloride (AlCl3<\/sub>) ho\u1eb7c c\u00e1c axit Lewis kh\u00e1c.<\/p>\n

<\/p>\n

  • Cao su butyl c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i v\u00e0 \u0111\u1ed9 b\u1ec1n tuy\u1ec7t v\u1eddi, ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 th\u1ea5p.<\/li>\n
  • Kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ea5m cao, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 l\u1ed1p xe, \u1ed1ng d\u1eabn d\u1ea7u, v\u00e0 v\u1eadt li\u1ec7u c\u00e1ch nhi\u1ec7t.<\/li>\n

    <\/u1><\/p>\n

    T\u00ednh Nhi\u1ec7t H\u1ecdc c\u1ee7a Isobutylene<\/h2>\n

    Trong l\u0129nh v\u1ef1c nhi\u1ec7t h\u1ecdc, Isobutylene th\u01b0\u1eddng \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u v\u1ec1 c\u00e1c \u0111\u1eb7c t\u00ednh nhi\u1ec7t \u0111\u1ed9ng l\u1ef1c h\u1ecdc. M\u1ed9t v\u00e0i t\u00ednh ch\u1ea5t quan tr\u1ecdng bao g\u1ed3m:<\/p>\n

    <\/p>\n

  • Nhi\u1ec7t dung ri\u00eang (cp<\/sub>):<\/b> \u0110\u00e2y l\u00e0 l\u01b0\u1ee3ng nhi\u1ec7t c\u1ea7n thi\u1ebft \u0111\u1ec3 t\u0103ng nhi\u1ec7t \u0111\u1ed9 c\u1ee7a m\u1ed9t \u0111\u01a1n v\u1ecb kh\u1ed1i l\u01b0\u1ee3ng ch\u1ea5t l\u00ean m\u1ed9t \u0111\u01a1n v\u1ecb nhi\u1ec7t \u0111\u1ed9. \u0110\u1ed1i v\u1edbi isobutylene, nhi\u1ec7t dung ri\u00eang c\u1ee7a n\u00f3 thay \u0111\u1ed5i theo nhi\u1ec7t \u0111\u1ed9, nh\u01b0ng m\u1ed9t gi\u00e1 tr\u1ecb ph\u1ed5 bi\u1ebfn l\u00e0 kho\u1ea3ng 0.167 kJ\/(kg\u00b7K) \u1edf 25\u00b0C.<\/li>\n
  • \u0110i\u1ec3m s\u00f4i:<\/b> Isobutylene c\u00f3 \u0111i\u1ec3m s\u00f4i kho\u1ea3ng -6.9\u00b0C (19.6\u00b0F) \u1edf \u00e1p su\u1ea5t kh\u00ed quy\u1ec3n.<\/li>\n
  • \u0110i\u1ec3m n\u00f3ng ch\u1ea3y:<\/b> N\u00f3 c\u00f3 \u0111i\u1ec3m n\u00f3ng ch\u1ea3y kho\u1ea3ng -140\u00b0C (-220\u00b0F), cho th\u1ea5y tr\u1ea1ng th\u00e1i l\u1ecfng c\u1ee7a n\u00f3 \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng.<\/li>\n

    <\/u1><\/p>\n

    \u1ee8ng D\u1ee5ng c\u1ee7a Isobutylene<\/h2>\n

    Isobutylene c\u00f3 nhi\u1ec1u \u1ee9ng d\u1ee5ng ngo\u00e0i vi\u1ec7c s\u1ea3n xu\u1ea5t cao su butyl. M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng quan tr\u1ecdng kh\u00e1c l\u00e0 l\u00e0m nguy\u00ean li\u1ec7u cho s\u1ea3n xu\u1ea5t MTBE (Methyl Tert-Butyl Ether), m\u1ed9t ph\u1ee5 gia x\u0103ng gi\u00fap t\u0103ng s\u1ed1 octan v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t \u0111\u1ed9ng c\u01a1.<\/p>\n

    <\/p>\n

  • MTBE:<\/b> MTBE \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb ph\u1ea3n \u1ee9ng gi\u1eefa isobutylene v\u00e0 methanol (CH3<\/sub>OH). MTBE gi\u00fap c\u1ea3i thi\u1ec7n ch\u1ea5t l\u01b0\u1ee3ng nhi\u00ean li\u1ec7u x\u0103ng v\u00e0 gi\u1ea3m l\u01b0\u1ee3ng kh\u00ed th\u1ea3i \u0111\u1ed9c h\u1ea1i.<\/li>\n
  • Polymers:<\/b> Isobutylene c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong s\u1ea3n xu\u1ea5t c\u00e1c lo\u1ea1i polymer kh\u00e1c nh\u01b0 polyisobutylene, m\u1ed9t lo\u1ea1i polymer c\u00f3 t\u00ednh d\u1ebbo v\u00e0 ch\u1ed1ng th\u1ea5m n\u01b0\u1edbc t\u1ed1t.<\/li>\n

    <\/u1><\/p>\n

    T\u00f3m l\u1ea1i, Isobutylene \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, t\u1eeb s\u1ea3n xu\u1ea5t cao su \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng trong l\u0129nh v\u1ef1c nhi\u1ec7t h\u1ecdc v\u00e0 nhi\u00ean li\u1ec7u. Hi\u1ec3u r\u00f5 v\u1ec1 c\u00e1c t\u00ednh ch\u1ea5t v\u00e0 \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 kh\u00f4ng ch\u1ec9 gi\u00fap ta c\u00f3 c\u00e1i nh\u00ecn to\u00e0n di\u1ec7n h\u01a1n v\u1ec1 m\u1ed9t h\u00f3a ch\u1ea5t ph\u1ed5 bi\u1ebfn, m\u00e0 c\u00f2n kh\u00e1m ph\u00e1 th\u00eam nhi\u1ec1u ti\u1ec1m n\u0103ng trong th\u1ef1c t\u1ebf s\u1ea3n xu\u1ea5t v\u00e0 \u0111\u1eddi s\u1ed1ng.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Isobutylene trong s\u1ea3n xu\u1ea5t cao su: T\u00ednh ch\u1ea5t nhi\u1ec7t h\u1ecdc v\u00e0 \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p \u0111\u1ec3 t\u1ea1o ra s\u1ea3n ph\u1ea9m cao su ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 b\u1ec1n b\u1ec9.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[132],"tags":[],"yoast_head":"\nIsobutylene | S\u1ea3n Xu\u1ea5t Cao Su, T\u00ednh Nhi\u1ec7t H\u1ecdc<\/title>\n<meta name=\"description\" content=\"Isobutylene trong s\u1ea3n xu\u1ea5t cao su: T\u00ednh ch\u1ea5t nhi\u1ec7t h\u1ecdc v\u00e0 \u1ee9ng d\u1ee5ng trong c\u00f4ng nghi\u1ec7p \u0111\u1ec3 t\u1ea1o ra s\u1ea3n ph\u1ea9m cao su ch\u1ea5t l\u01b0\u1ee3ng cao v\u00e0 b\u1ec1n b\u1ec9.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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