{"id":118596,"date":"2022-08-31T10:12:37","date_gmt":"2022-08-31T02:12:37","guid":{"rendered":"https:\/\/www.alpapowder.com\/118596\/"},"modified":"2022-09-01T10:44:33","modified_gmt":"2022-09-01T02:44:33","slug":"ung-dung-cua-7-loai-vat-lieu-bot-nano-trong-cao-su-silicone-long","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/118596\/","title":{"rendered":"\u1ee8ng d\u1ee5ng c\u1ee7a 7 lo\u1ea1i v\u1eadt li\u1ec7u b\u1ed9t nano trong cao su silicone l\u1ecfng"},"content":{"rendered":"

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Cao su silicone l\u1ecfng ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c polyme c\u01a1 b\u1ea3n, ch\u1ea5t \u0111\u1ed9n t\u0103ng c\u01b0\u1eddng, ch\u1ea5t li\u00ean k\u1ebft ngang v\u00e0 c\u00e1c ch\u1ea5t tr\u1ee3 kh\u00e1c nhau theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf cao su c\u01a1 b\u1ea3n c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 san ph\u1eb3ng v\u00e0 thixotropy, sau \u0111\u00f3 tr\u1ed9n v\u1edbi kh\u00f4ng kh\u00ed \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng ho\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n gia nhi\u1ec7t. Ch\u1ea5t \u0111\u00e0n h\u1ed3i h\u00ecnh th\u00e0nh do ti\u1ebfp x\u00fac v\u1edbi h\u01a1i \u1ea9m trong ho\u1eb7c v\u1edbi c\u00e1c ch\u1ea5t li\u00ean k\u1ebft ngang.<\/p>\n

V\u00ec c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 l\u00fd c\u1ee7a cao su silicone l\u1ecfng nguy\u00ean ch\u1ea5t r\u1ea5t k\u00e9m n\u00ean th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c gia c\u1ed1 v\u00e0 s\u1eeda \u0111\u1ed5i \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u c\u1ee7a c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. Trong s\u1ed1 \u0111\u00f3, th\u00eam ch\u1ea5t \u0111\u1ed9n gia c\u1ed1 ch\u1eafc ch\u1eafn l\u00e0 ph\u01b0\u01a1ng ph\u00e1p ng\u1eafn g\u1ecdn v\u00e0 ti\u1ec7n l\u1ee3i nh\u1ea5t. C\u00e1c ch\u1ea5t \u0111\u1ed9n nano th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0 nano-silica, nano canxi cacbonat, montmorillonite<\/a> h\u1eefu c\u01a1, \u1ed1ng nano cacbon v\u00e0 graphene, nano k\u1ebdm oxit, nano titan dioxit, silic cacbua, nh\u00f4m oxit v\u00e0 d\u00e2y nano b\u1ea1c.<\/p>\n

1. Nano silica<\/p>\n

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p t\u1ed5ng h\u1ee3p nano-silica ch\u1ee7 y\u1ebfu d\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p pha kh\u00ed v\u00e0 ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a. Nano-silica \u0111i\u1ec1u ch\u1ebf b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p pha kh\u00ed c\u00f3 \u00edt nh\u00f3m hydroxyl b\u1ec1 m\u1eb7t, k\u00edch th\u01b0\u1edbc h\u1ea1t \u0111\u1ed3ng \u0111\u1ec1u v\u00e0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n t\u1ed1t. Zhu Zhimin v\u00e0 c\u1ed9ng s\u1ef1. \u0111\u00e3 s\u1eed d\u1ee5ng silica b\u1ed1c kh\u00f3i l\u00e0m ch\u1ea5t \u0111\u1ed9n gia c\u1ed1 v\u00e0 nh\u1eadn th\u1ea5y r\u1eb1ng sau khi th\u00eam 10 ph\u1ea7n silica, c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a cao su silicone l\u1ecfng \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 v\u00e0 \u0111\u1ed9 c\u1ee9ng, \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 b\u1ec1n c\u1eaft c\u1ee7a Shore A c\u00f3 th\u1ec3 \u0111\u1ea1t t\u1edbi 40, t\u01b0\u01a1ng \u1ee9ng. , 1.6MPa, 1.4MPa; kh\u00f4ng c\u00f3 s\u1ef1 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 v\u1ec1 \u0111\u1ed9 b\u1ec1n c\u1eaft sau khi l\u00e3o h\u00f3a.<\/p>\n

Do chi ph\u00ed c\u1ee7a silica b\u1ed1c kh\u00f3i cao h\u01a1n n\u00ean silica k\u1ebft t\u1ee7a c\u00f3 gi\u00e1 th\u00e0nh th\u1ea5p h\u01a1n \u0111\u01b0\u1ee3c quan t\u00e2m. H\u00e0m l\u01b0\u1ee3ng n\u01b0\u1edbc c\u1ee7a silica k\u1ebft t\u1ee7a cao h\u01a1n v\u00e0 s\u1ed1 l\u01b0\u1ee3ng hydroxyl tr\u00ean b\u1ec1 m\u1eb7t cao h\u01a1n nhi\u1ec1u so v\u1edbi silica b\u1ed1c kh\u00f3i, \u0111i\u1ec1u n\u00e0y l\u00e0m cho ho\u1ea1t t\u00ednh b\u1ec1 m\u1eb7t c\u1ee7a silica k\u1ebft t\u1ee7a r\u1ea5t cao, v\u00e0 n\u00f3 d\u1ec5 k\u1ebft t\u1ee5, kh\u00f4ng c\u00f3 l\u1ee3i cho s\u1ef1 ph\u00e2n t\u00e1n trong ma tr\u1eadn cao su. \u0110\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y, c\u00e1c ph\u01b0\u01a1ng ph\u00e1p v\u1eadt l\u00fd ho\u1eb7c h\u00f3a h\u1ecdc th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a n\u00f3 \u0111\u1ec3 ng\u0103n ch\u1eb7n s\u1ef1 k\u1ebft t\u1ee5 v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n c\u1ee7a n\u00f3.<\/p>\n

2. Canxi cacbonat nano<\/p>\n

Nano canxi cacbonat c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf, di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang cao, ho\u1ea1t t\u00ednh b\u1ec1 m\u1eb7t cao, l\u01b0\u1ee3ng l\u1ea5p \u0111\u1ea7y l\u1edbn v\u00e0 gia c\u00f4ng thu\u1eadn ti\u1ec7n. , Nano canxi cacbonat \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong cao su silicone l\u1ecfng nh\u01b0 m\u1ed9t ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng th\u00f4ng th\u01b0\u1eddng.<\/p>\n

3. Montmorillonite<\/a> h\u1eefu c\u01a1 (OMMT)<\/p>\n

Montmorillonite<\/a> (MMT) l\u00e0 m\u1ed9t lo\u1ea1i silicat ph\u00e2n l\u1edbp \u0111i\u1ec3n h\u00ecnh v\u00e0 l\u00e0 ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng t\u01b0\u01a1ng \u0111\u1ed1i ph\u1ed5 bi\u1ebfn trong ng\u00e0nh c\u00f4ng nghi\u1ec7p cao su. \u0110\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a MMT v\u1edbi cao su silicone, n\u00f3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh h\u1eefu c\u01a1 \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c OMMT. Nghi\u00ean c\u1ee9u cho th\u1ea5y OMMT c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n t\u1ed1t trong ma tr\u1eadn cao su silicone, do \u0111\u00f3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 c\u01a1 h\u1ecdc c\u1ee7a cao su silicone.<\/p>\n

4. \u1ed0ng nano cacbon (CNTs)<\/p>\n

Do t\u1ef7 l\u1ec7 co l\u1edbn, m\u00f4\u0111un cao, \u0111\u1ed9 d\u1ebbo dai c\u1ef1c cao v\u00e0 m\u1eadt \u0111\u1ed9 CNTs th\u1ea5p lu\u00f4n thu h\u00fat \u0111\u01b0\u1ee3c s\u1ef1 ch\u00fa \u00fd n\u00ean vi\u1ec7c nghi\u00ean c\u1ee9u CNTs trong l\u0129nh v\u1ef1c gia c\u01b0\u1eddng cao su silicone l\u1ecfng ng\u00e0y c\u00e0ng tr\u1edf n\u00ean s\u00e2u r\u1ed9ng.<\/p>\n

5. Graphene<\/p>\n

Graphene l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u nano hai chi\u1ec1u c\u00f3 s\u1eafp x\u1ebfp m\u1ea1ng l\u1ee5c gi\u00e1c \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh b\u1eb1ng c\u00e1ch lai h\u00f3a nguy\u00ean t\u1eed cacbon sp2. N\u00f3 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh \u0111i\u1ec7n, nhi\u1ec7t v\u00e0 v\u1eadt l\u00fd v\u00e0 c\u01a1 h\u1ecdc tuy\u1ec7t v\u1eddi, v\u00e0 c\u00f3 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, ngu\u1ed3n r\u1ed9ng v\u00e0 chu\u1ea9n b\u1ecb \u0111\u01a1n gi\u1ea3n. , l\u00e0 m\u1ed9t ch\u1ea5t l\u00e0m \u0111\u1ea7y ch\u1ee9c n\u0103ng r\u1ea5t l\u00fd t\u01b0\u1edfng.<\/p>\n

6. Nano k\u1ebdm oxit<\/p>\n

ZnO l\u00e0 ch\u1ea5t ho\u1ea1t h\u00f3a l\u01b0u h\u00f3a \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn trong ng\u00e0nh c\u00f4ng nghi\u1ec7p cao su, v\u00e0 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n \u0111\u1ec3 c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 l\u00fd v\u00e0 t\u00ednh d\u1eabn nhi\u1ec7t c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n

V\u1ec1 l\u00fd thuy\u1ebft, vi\u1ec7c gi\u1ea3m k\u00edch th\u01b0\u1edbc h\u1ea1t c\u1ee7a ZnO v\u00e0 t\u0103ng di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang c\u00f3 l\u1ee3i \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng, do \u0111\u00f3, nano ZnO c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng ch\u1ee9c n\u0103ng cho cao su silicone l\u1ecfng. Ngo\u00e0i ra, ZnO c\u00f2n l\u00e0 m\u1ed9t ch\u1ea5t che ch\u1eafn tia c\u1ef1c t\u00edm t\u1ed1t v\u1edbi \u0111\u1eb7c t\u00ednh ch\u1ed1ng l\u00e3o h\u00f3a. ZnO bi\u1ebfn t\u00ednh c\u0169ng c\u00f3 th\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u1eb7c t\u00ednh m\u1edbi cho cao su silicone nh\u01b0 \u0111\u1eb7c t\u00ednh t\u1ef1 l\u00e0m s\u1ea1ch.<\/p>\n

7. Nano titanium dioxide<\/p>\n

Nano-titanium dioxide c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m \u00edt khuy\u1ebft t\u1eadt b\u1ec1 m\u1eb7t h\u01a1n, nhi\u1ec1u nguy\u00ean t\u1eed kh\u00f4ng gh\u00e9p \u0111\u00f4i h\u01a1n v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn. Khi n\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng cao su, n\u00f3 d\u1ec5 b\u1ecb li\u00ean k\u1ebft v\u1eadt l\u00fd ho\u1eb7c h\u00f3a h\u1ecdc v\u00e0 l\u00e0m t\u0103ng c\u00e1c v\u1ecb tr\u00ed li\u00ean k\u1ebft ngang, c\u00f3 l\u1ee3i cho vi\u1ec7c c\u1ea3i thi\u1ec7n c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 l\u00fd c\u1ee7a v\u1eadt li\u1ec7u cao su. Sau khi ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a ngo\u1ea1i l\u1ef1c trong tr\u01b0\u1eddng \u1ee9ng su\u1ea5t, nano titan \u0111i\u00f4x\u00edt t\u1ea1o ra bi\u1ebfn d\u1ea1ng mi\u1ec1n vi m\u00f4 trong ma tr\u1eadn \u0111\u1ec3 h\u1ea5p th\u1ee5 n\u0103ng l\u01b0\u1ee3ng, v\u00e0 v\u1eadt li\u1ec7u cao su th\u1ec3 hi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng b\u1ee9c x\u1ea1 t\u1ed1t.<\/p>\n

C\u00e1c ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng ch\u1ee9c n\u0103ng kh\u00e1c Ngo\u00e0i c\u00e1c ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng nano ch\u1ee9c n\u0103ng n\u00eau tr\u00ean, c\u00f2n c\u00f3 nhi\u1ec1u lo\u1ea1i ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng kh\u00e1c, ch\u1eb3ng h\u1ea1n nh\u01b0 silic cacbua, nh\u00f4m, d\u00e2y nano b\u1ea1c, v.v … Nh\u1eefng ch\u1ea5t \u0111\u1ed9n gia c\u01b0\u1eddng n\u00e0y kh\u00f4ng ch\u1ec9 c\u00f3 hi\u1ec7u qu\u1ea3 c\u1ea3i thi\u1ec7n th\u1ec3 ch\u1ea5t. t\u00ednh ch\u1ea5t c\u1ee7a cao su silicone l\u1ecfng. C\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc c\u0169ng c\u00f3 th\u1ec3 truy\u1ec1n \u0111\u1ea1t m\u1ed9t s\u1ed1 t\u00ednh ch\u1ea5t \u0111\u1eb7c bi\u1ec7t.<\/p>\n","protected":false},"excerpt":{"rendered":"

Cao su silicone l\u1ecfng ch\u1ee7 y\u1ebfu bao g\u1ed3m c\u00e1c polyme c\u01a1 b\u1ea3n, ch\u1ea5t \u0111\u1ed9n t\u0103ng c\u01b0\u1eddng, ch\u1ea5t li\u00ean k\u1ebft ngang v\u00e0 c\u00e1c ch\u1ea5t tr\u1ee3 kh\u00e1c nhau theo m\u1ed9t t\u1ef7 l\u1ec7 nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 \u0111i\u1ec1u ch\u1ebf cao su c\u01a1 b\u1ea3n c\u00f3 kh\u1ea3 n\u0103ng t\u1ef1 san ph\u1eb3ng v\u00e0 thixotropy, sau \u0111\u00f3 tr\u1ed9n v\u1edbi kh\u00f4ng kh\u00ed \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng ho\u1eb7c trong \u0111i\u1ec1u ki\u1ec7n gia nhi\u1ec7t.<\/p>\n","protected":false},"author":7,"featured_media":118572,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[830],"tags":[],"class_list":["post-118596","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/118596"}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=118596"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/118596\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/118572"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=118596"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=118596"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=118596"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}