{"id":129993,"date":"2023-11-17T16:57:29","date_gmt":"2023-11-17T08:57:29","guid":{"rendered":"https:\/\/www.alpapowder.com\/129993\/"},"modified":"2023-11-17T16:57:30","modified_gmt":"2023-11-17T08:57:30","slug":"ung-dung-va-nghien-cuu-wollastonite-bien-tinh","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/129993\/","title":{"rendered":"\u1ee8ng d\u1ee5ng v\u00e0 nghi\u00ean c\u1ee9u wollastonite bi\u1ebfn t\u00ednh"},"content":{"rendered":"

\"\"<\/p>\n

Wollastonite l\u00e0 m\u1ed9t kho\u00e1ng ch\u1ea5t phi kim lo\u1ea1i c\u1ef1c k\u1ef3 quan tr\u1ecdng. Th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc ch\u00ednh c\u1ee7a n\u00f3 l\u00e0 canxi metasilicate (CaSiO3). N\u00f3 thu\u1ed9c h\u1ec7 tinh th\u1ec3 l\u01b0\u1ee3ng gi\u00e1c v\u00e0 c\u00f3 m\u00e0u tr\u1eafng x\u00e1m. Wollastonite c\u00f3 t\u1ef7 l\u1ec7 khung h\u00ecnh l\u1edbn, c\u1ea5u tr\u00fac gi\u1ed1ng nh\u01b0 kim t\u1ef1 nhi\u00ean v\u00e0 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh v\u1eadt li\u1ec7u gia c\u1ed1 tuy\u1ec7t v\u1eddi. Ngo\u00e0i c\u1ea5u tr\u00fac d\u1ea1ng s\u1ee3i t\u1ef1 nhi\u00ean, wollastonite c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 d\u1ea7u, \u0111\u1ed9 d\u1eabn \u0111i\u1ec7n v\u00e0 m\u1ea5t \u0111i\u1ec7n c\u1ef1c th\u1ea5p. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong nh\u1ef1a, cao su, s\u01a1n, ch\u1ea5t ph\u1ee7 v\u00e0 c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c, v\u00e0 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 ma s\u00e1t c\u1ee7a ma tr\u1eadn. C\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh nhi\u1ec7t v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a s\u1ea3n ph\u1ea9m.<\/p>\n

Tuy nhi\u00ean, wollastonite t\u1ef1 nhi\u00ean c\u00f3 t\u00ednh \u01b0a n\u01b0\u1edbc v\u00e0 khi tr\u1ed9n v\u1edbi c\u00e1c polyme h\u1eefu c\u01a1, \u0111\u1ed9 ph\u00e2n t\u00e1n kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u do c\u00e1c \u0111\u1ed9 ph\u00e2n c\u1ef1c kh\u00e1c nhau, do \u0111\u00f3 l\u00e0m gi\u1ea3m t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a c\u00e1c s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c l\u00e0m \u0111\u1ea7y. \u0110\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 ph\u00e2n t\u00e1n v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a n\u00f3 trong ma tr\u1eadn h\u1eefu c\u01a1, c\u0169ng nh\u01b0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a s\u1ea3n ph\u1ea9m, wollastonite th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t.<\/p>\n

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C\u00f4ng ngh\u1ec7 bi\u1ebfn t\u00ednh Wollastonite<\/p>\n

C\u00f4ng ngh\u1ec7 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a wollastonite c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh: bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t h\u1eefu c\u01a1 v\u00e0 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t v\u00f4 c\u01a1.<\/p>\n

\u0110\u1ec3 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t h\u1eefu c\u01a1, c\u00e1c ch\u1ea5t bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m c\u00e1c ch\u1ea5t li\u00ean k\u1ebft silane, ch\u1ea5t li\u00ean k\u1ebft titanate v\u00e0 aluminate, ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t v\u00e0 metyl metacryit. Trong s\u1ed1 \u0111\u00f3, s\u1eeda \u0111\u1ed5i t\u00e1c nh\u00e2n li\u00ean k\u1ebft silane l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn \u0111\u1ed1i v\u1edbi b\u1ed9t wollastonite v\u00e0 quy tr\u00ecnh bi\u1ebfn \u0111\u1ed5i kh\u00f4 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng. Li\u1ec1u l\u01b0\u1ee3ng c\u1ee7a ch\u1ea5t li\u00ean k\u1ebft c\u00f3 li\u00ean quan \u0111\u1ebfn \u0111\u1ed9 che ph\u1ee7 c\u1ea7n thi\u1ebft v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang c\u1ee7a b\u1ed9t. Li\u1ec1u l\u01b0\u1ee3ng th\u01b0\u1eddng l\u00e0 0,5% \u0111\u1ebfn 1,5% kh\u1ed1i l\u01b0\u1ee3ng wollastonite.<\/p>\n

N\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt c\u1ee7a vi\u1ec7c bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t v\u00f4 c\u01a1 l\u00e0 wollastonite l\u00e0m ch\u1ea5t \u0111\u1ed9n polyme th\u01b0\u1eddng l\u00e0m cho v\u1eadt li\u1ec7u \u0111\u1ed9n c\u00f3 m\u00e0u s\u1eabm h\u01a1n, c\u00f3 gi\u00e1 tr\u1ecb m\u00e0i m\u00f2n l\u1edbn h\u01a1n v\u00e0 d\u1ec5 m\u00e0i m\u00f2n thi\u1ebft b\u1ecb x\u1eed l\u00fd; s\u1eeda \u0111\u1ed5i l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t v\u00f4 c\u01a1 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n s\u1ee3i \u0111\u00e1 silicone m\u00e0u x\u00e1m l\u1ea5p \u0111\u1ea7y m\u00e0u s\u1eafc c\u1ee7a v\u1eadt li\u1ec7u polymer v\u00e0 l\u00e0m gi\u1ea3m gi\u00e1 tr\u1ecb m\u00e0i m\u00f2n c\u1ee7a ch\u00fang. Hi\u1ec7n nay, vi\u1ec7c bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t v\u00f4 c\u01a1 c\u1ee7a s\u1ee3i kho\u00e1ng wollastonite ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p k\u1ebft t\u1ee7a h\u00f3a h\u1ecdc \u0111\u1ec3 ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t b\u1eb1ng canxi silicat, silica<\/a> v\u00e0 canxi cacbonat nanomet.<\/p>\n

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\u1ee8ng d\u1ee5ng v\u00e0 nghi\u00ean c\u1ee9u wollastonite bi\u1ebfn t\u00ednh<\/p>\n

(1) Nh\u1ef1a<\/p>\n

Polypropylen (PP), l\u00e0 m\u1ed9t trong n\u0103m lo\u1ea1i nh\u1ef1a \u0111a n\u0103ng, c\u00f3 \u0111\u1eb7c t\u00ednh to\u00e0n di\u1ec7n t\u1ed1t h\u01a1n c\u00e1c lo\u1ea1i nh\u1ef1a \u0111a n\u0103ng kh\u00e1c. N\u00f3 ng\u00e0y c\u00e0ng \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n v\u00e0 s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c l\u0129nh v\u1ef1c \u00f4 t\u00f4, h\u00e0ng kh\u00f4ng v\u0169 tr\u1ee5, x\u00e2y d\u1ef1ng v\u00e0 y h\u1ecdc.<\/p>\n

(2) L\u00e0m gi\u1ea5y<\/p>\n

\u1ee8ng d\u1ee5ng c\u1ee7a wollastonite trong ng\u00e0nh gi\u1ea5y kh\u00e1 kh\u00e1c bi\u1ec7t so v\u1edbi c\u00e1c ch\u1ea5t \u0111\u1ed9n kh\u00e1c. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t c\u00e1ch l\u00e0m \u0111\u1ea7y \u0111\u01a1n gi\u1ea3n nh\u01b0 ch\u1ea5t l\u00e0m \u0111\u1ea7y truy\u1ec1n th\u1ed1ng. N\u00f3 ch\u1ee7 y\u1ebfu d\u1ef1a v\u00e0o t\u1ef7 l\u1ec7 khung h\u00ecnh cao h\u01a1n \u0111\u1ec3 nh\u1eadn ra s\u1ef1 \u0111an xen c\u1ee7a s\u1ee3i wollastonite v\u00e0 s\u1ee3i th\u1ef1c v\u1eadt \u0111\u1ec3 t\u1ea1o th\u00e0nh s\u1ee3i th\u1ef1c v\u1eadt. C\u1ea5u tr\u00fac m\u1ea1ng c\u1ee7a s\u1ee3i kho\u00e1ng-s\u1ee3i c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t s\u1ed1 s\u1ee3i th\u1ef1c v\u1eadt ng\u1eafn, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 \u0111\u1ed9 m\u1edd v\u00e0 kh\u1ea3 n\u0103ng th\u00edch \u1ee9ng in c\u1ee7a gi\u1ea5y s\u1ea3n xu\u1ea5t, c\u1ea3i thi\u1ec7n t\u00ednh \u0111\u1ed3ng nh\u1ea5t v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t.<\/p>\n

 <\/p>\n

(3) V\u1eadt li\u1ec7u ma s\u00e1t<\/p>\n

S\u1ea3n ph\u1ea9m Wollastonite d\u00f9ng cho v\u1eadt li\u1ec7u ma s\u00e1t l\u00e0 b\u1ed9t d\u1ea1ng kim wollastonite. So v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng truy\u1ec1n th\u1ed1ng, ch\u00fang ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t \u0111\u1ed9n trong m\u00e1 phanh, ly h\u1ee3p, v.v. B\u1ed9t h\u00ecnh kim c\u1ee7a wollastonite l\u00e0 ch\u1ea5t thay th\u1ebf l\u00fd t\u01b0\u1edfng cho ami\u0103ng s\u1ee3i ng\u1eafn. N\u00f3 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a v\u1eadt li\u1ec7u ma s\u00e1t, gi\u1ea3m n\u1ee9t, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 ph\u1ee5c h\u1ed3i c\u0169ng nh\u01b0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc kh\u00e1c \u1edf m\u1ed9t m\u1ee9c \u0111\u1ed9 nh\u1ea5t \u0111\u1ecbnh.<\/p>\n

 <\/p>\n

(4) L\u1edbp ph\u1ee7<\/p>\n

Wollastonite c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t m\u00e0u m\u1edf r\u1ed9ng v\u00e0 thay th\u1ebf m\u1ed9t ph\u1ea7n cho ch\u1ea5t m\u00e0u tr\u1eafng trong s\u01a1n. Ngo\u00e0i ra, theo \u0111\u1eb7c t\u00ednh c\u1ee7a b\u1ea3n th\u00e2n wollastonite, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t ph\u1ee5 gia bi\u1ebfn \u0111\u1ed5i l\u1edbp ph\u1ee7 \u0111\u1ec3 m\u1edf r\u1ed9ng ch\u1ee9c n\u0103ng c\u1ee7a v\u1eadt li\u1ec7u. V\u00ed d\u1ee5, wollastonite c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong l\u0129nh v\u1ef1c s\u01a1n ch\u1ed1ng \u0103n m\u00f2n.<\/p>\n

 <\/p>\n

(5) Cao su<\/p>\n

Trong ng\u00e0nh cao su, b\u1ed9t wollastonite c\u00f3 th\u1ec3 thay th\u1ebf m\u1ed9t ph\u1ea7n titan dioxide, mu\u1ed9i than tr\u1eafng, \u0111\u1ea5t s\u00e9t, canxi nh\u1eb9, lithopone v\u00e0 c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c, c\u00f3 t\u00e1c d\u1ee5ng gia c\u1ed1 nh\u1ea5t \u0111\u1ecbnh v\u00e0 c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng che gi\u1ea5u c\u1ee7a m\u1ed9t s\u1ed1 ch\u1ea5t t\u1ea1o m\u00e0u.<\/p>\n

 <\/p>\n

(6) Xi m\u0103ng\/b\u00ea t\u00f4ng c\u1ed1t s\u1ee3i<\/p>\n

Wollastonite s\u1ee3i thay th\u1ebf s\u1ee3i ami\u0103ng ng\u1eafn v\u00e0 s\u1ee3i th\u1ee7y tinh v\u00e0 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o xi m\u0103ng, b\u00ea t\u00f4ng v\u00e0 c\u00e1c v\u1eadt li\u1ec7u x\u00e2y d\u1ef1ng kh\u00e1c, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp, \u0111\u1ed9 b\u1ec1n u\u1ed1n, ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt li\u1ec7u.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0110\u1ec3 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t h\u1eefu c\u01a1, c\u00e1c ch\u1ea5t bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m c\u00e1c ch\u1ea5t li\u00ean k\u1ebft silane, ch\u1ea5t li\u00ean k\u1ebft titanate v\u00e0 aluminate, ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t v\u00e0 metyl metacryit<\/p>\n","protected":false},"author":7,"featured_media":129953,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-129993","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cong-nghiep-tin-tuc-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/129993"}],"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=129993"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/129993\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/129953"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=129993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=129993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=129993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}