{"id":135804,"date":"2025-04-27T14:17:05","date_gmt":"2025-04-27T06:17:05","guid":{"rendered":"https:\/\/www.alpapowder.com\/135804\/"},"modified":"2025-04-27T14:17:06","modified_gmt":"2025-04-27T06:17:06","slug":"sua-doi-lop-phu-titan-dioxide","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/135804\/","title":{"rendered":"S\u1eeda \u0111\u1ed5i l\u1edbp ph\u1ee7 titan dioxide"},"content":{"rendered":"

\"\"<\/p>\n

Vi\u1ec7c bi\u1ebfn \u0111\u1ed5i l\u1edbp ph\u1ee7 c\u1ee7a titanium dioxide (titanium dioxide) l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ti\u1ec7n quan tr\u1ecdng \u0111\u1ec3 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a n\u00f3 (nh\u01b0 kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n, kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft, \u0111\u1ed9 b\u00f3ng, \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc, v.v.). C\u00e1c ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i l\u1edbp ph\u1ee7 ph\u1ed5 bi\u1ebfn ch\u1ee7 y\u1ebfu bao g\u1ed3m ba lo\u1ea1i: l\u1edbp ph\u1ee7 v\u00f4 c\u01a1, l\u1edbp ph\u1ee7 h\u1eefu c\u01a1 v\u00e0 l\u1edbp ph\u1ee7 t\u1ed5ng h\u1ee3p. Sau \u0111\u00e2y l\u00e0 ph\u00e2n lo\u1ea1i c\u1ee5 th\u1ec3 v\u00e0 gi\u1edbi thi\u1ec7u ng\u1eafn g\u1ecdn:<\/p>\n

Bi\u1ebfn \u0111\u1ed5i l\u1edbp ph\u1ee7 v\u00f4 c\u01a1<\/p>\n

B\u1eb1ng c\u00e1ch ph\u1ee7 m\u1ed9t l\u1edbp oxit ho\u1eb7c mu\u1ed1i v\u00f4 c\u01a1 l\u00ean \u200b\u200bb\u1ec1 m\u1eb7t c\u00e1c h\u1ea1t titanium dioxide, m\u1ed9t r\u00e0o c\u1ea3n v\u1eadt l\u00fd \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc v\u00e0 t\u00ednh ch\u1ea5t quang h\u1ecdc c\u1ee7a n\u00f3.<\/p>\n

1. L\u1edbp ph\u1ee7 oxit<\/p>\n

Nguy\u00ean l\u00fd: S\u1eed d\u1ee5ng hydrat c\u1ee7a oxit kim lo\u1ea1i (nh\u01b0 SiO\u2082, Al\u2082O\u2083, ZrO\u2082, v.v.) \u0111\u1ec3 k\u1ebft t\u1ee7a tr\u00ean b\u1ec1 m\u1eb7t titanium dioxide \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp ph\u1ee7 \u0111\u1ed3ng nh\u1ea5t.<\/p>\n

Quy tr\u00ecnh: Th\u00f4ng th\u01b0\u1eddng th\u00f4ng qua ph\u01b0\u01a1ng ph\u00e1p l\u1eafng \u0111\u1ecdng pha l\u1ecfng, c\u00e1c mu\u1ed1i kim lo\u1ea1i (nh\u01b0 natri silicat, nh\u00f4m sunfat) \u0111\u01b0\u1ee3c th\u00eam v\u00e0o b\u00f9n titanium dioxide v\u00e0 gi\u00e1 tr\u1ecb pH \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ec3 k\u1ebft t\u1ee7a v\u00e0 ph\u1ee7 hydrat oxit kim lo\u1ea1i.<\/p>\n

2. L\u1edbp ph\u1ee7 oxit t\u1ed5ng h\u1ee3p<\/p>\n

Nguy\u00ean l\u00fd: Ph\u1ee7 hai ho\u1eb7c nhi\u1ec1u oxit kim lo\u1ea1i (nh\u01b0 Al\u2082O\u2083-SiO\u2082, ZrO\u2082-SiO\u2082, v.v.), k\u1ebft h\u1ee3p c\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a t\u1eebng th\u00e0nh ph\u1ea7n.<\/p>\n

T\u00ednh n\u0103ng: Hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3 t\u1ed1t h\u01a1n, v\u00ed d\u1ee5, l\u1edbp ph\u1ee7 Al\u2082O\u2083-SiO\u2082 c\u00f3 th\u1ec3 \u0111\u1ed3ng th\u1eddi c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft, ph\u00f9 h\u1ee3p v\u1edbi s\u01a1n \u00f4 t\u00f4 v\u00e0 l\u1edbp ph\u1ee7 cu\u1ed9n d\u00e2y c\u00f3 nhu c\u1ea7u cao.<\/p>\n

3. L\u1edbp ph\u1ee7 mu\u1ed1i<\/p>\n

Nguy\u00ean l\u00fd: S\u1eed d\u1ee5ng mu\u1ed1i kim lo\u1ea1i (nh\u01b0 phosphat, silicat, sulfat, v.v.) \u0111\u1ec3 t\u1ea1o th\u00e0nh l\u1edbp mu\u1ed1i kh\u00f3 h\u00f2a tan tr\u00ean b\u1ec1 m\u1eb7t titan dioxide.<\/p>\n

Bi\u1ebfn \u0111\u1ed5i l\u1edbp ph\u1ee7 h\u1eefu c\u01a1<\/p>\n

Th\u00f4ng qua ph\u1ea3n \u1ee9ng c\u1ee7a c\u00e1c h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 v\u1edbi c\u00e1c nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t titan dioxide, m\u1ed9t l\u1edbp ph\u00e2n t\u1eed h\u1eefu c\u01a1 \u0111\u01b0\u1ee3c h\u00ecnh th\u00e0nh \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a n\u00f3 v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u1eefu c\u01a1.<\/p>\n

1. L\u1edbp ph\u1ee7 ch\u1ea5t k\u1ebft d\u00ednh<\/p>\n

Nguy\u00ean l\u00fd: S\u1eed d\u1ee5ng c\u1ea5u tr\u00fac l\u01b0\u1ee1ng t\u00ednh c\u1ee7a c\u00e1c ph\u00e2n t\u1eed ch\u1ea5t k\u1ebft d\u00ednh (nh\u01b0 silan, titanat, aluminat), m\u1ed9t \u0111\u1ea7u k\u1ebft h\u1ee3p v\u1edbi nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t titan dioxit, \u0111\u1ea7u c\u00f2n l\u1ea1i ph\u1ea3n \u1ee9ng v\u1edbi ch\u1ea5t n\u1ec1n h\u1eefu c\u01a1 (nh\u01b0 nh\u1ef1a, polyme).<\/p>\n

Ch\u1ea5t k\u1ebft d\u00ednh silan: C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n c\u1ee7a titan dioxit trong c\u00e1c h\u1ec7 th\u1ed1ng g\u1ed1c n\u01b0\u1edbc, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong l\u1edbp ph\u1ee7 g\u1ed1c n\u01b0\u1edbc v\u00e0 m\u1ef1c in.<\/p>\n

Ch\u1ea5t k\u1ebft d\u00ednh titanat\/aluminat: T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch trong c\u00e1c h\u1ec7 th\u1ed1ng d\u1ea7u nh\u01b0 nh\u1ef1a v\u00e0 cao su, \u0111\u1ed3ng th\u1eddi gi\u1ea3m s\u1ef1 k\u1ebft t\u1ee5 trong qu\u00e1 tr\u00ecnh x\u1eed l\u00fd.<\/p>\n

2. L\u1edbp ph\u1ee7 ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t<\/p>\n

Nguy\u00ean l\u00fd: Ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t (nh\u01b0 axit b\u00e9o, sulfonat, mu\u1ed1i amoni b\u1eadc b\u1ed1n, v.v.) b\u00e1m v\u00e0o b\u1ec1 m\u1eb7t titan dioxit th\u00f4ng qua qu\u00e1 tr\u00ecnh h\u1ea5p ph\u1ee5 v\u1eadt l\u00fd ho\u1eb7c ph\u1ea3n \u1ee9ng h\u00f3a h\u1ecdc \u0111\u1ec3 t\u1ea1o th\u00e0nh l\u1edbp t\u00edch \u0111i\u1ec7n ho\u1eb7c l\u1edbp k\u1ef5 n\u01b0\u1edbc.<\/p>\n

Ch\u1ee9c n\u0103ng:<\/p>\n

Ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t anion (nh\u01b0 axit stearic): C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n trong m\u00f4i tr\u01b0\u1eddng d\u1ea7u, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nh\u1ef1a v\u00e0 cao su.<\/p>\n

Ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t cation (nh\u01b0 dodecyltrimethylammonium chloride): Th\u00edch h\u1ee3p cho c\u00e1c h\u1ec7 ph\u00e2n c\u1ef1c \u0111\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh.<\/p>\n

3. L\u1edbp ph\u1ee7 polyme<\/p>\n

Nguy\u00ean l\u00fd: Gh\u00e9p c\u00e1c polyme (nh\u01b0 acrylat, nh\u1ef1a epoxy, siloxan, v.v.) tr\u00ean b\u1ec1 m\u1eb7t titan dioxide th\u00f4ng qua c\u00e1c ph\u1ea3n \u1ee9ng tr\u00f9ng h\u1ee3p.<\/p>\n

Ch\u1ee9c n\u0103ng:<\/p>\n

T\u1ea1o l\u1edbp ph\u1ee7 d\u00e0y \u0111\u1ec3 c\u00f4 l\u1eadp th\u00eam s\u1ef1 x\u00f3i m\u00f2n h\u00f3a h\u1ecdc v\u00e0 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu th\u1eddi ti\u1ebft v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc.<\/p>\n

C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c lo\u1ea1i nh\u1ef1a c\u1ee5 th\u1ec3, th\u00edch h\u1ee3p cho v\u1eadt li\u1ec7u composite v\u00e0 l\u1edbp ph\u1ee7 hi\u1ec7u su\u1ea5t cao.<\/p>\n

4. L\u1edbp ph\u1ee7 silicon<\/a><\/p>\n

Nguy\u00ean l\u00fd: S\u1eed d\u1ee5ng c\u00e1c \u0111\u1eb7c t\u00ednh n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t th\u1ea5p c\u1ee7a polysiloxan (d\u1ea7u silicon<\/a>, nh\u1ef1a silicon, v.v.) \u0111\u1ec3 ph\u1ee7 c\u00e1c h\u1ea1t titan dioxide.<\/p>\n

Ch\u1ee9c n\u0103ng: Gi\u1ea3m s\u1ee9c c\u0103ng b\u1ec1 m\u1eb7t, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n t\u00e1n v\u00e0 \u0111\u1ed9 m\u1ecbn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u1ef1c v\u00e0 m\u1ef9 ph\u1ea9m.<\/p>\n

III. S\u1eeda \u0111\u1ed5i l\u1edbp ph\u1ee7 composite<\/p>\n

K\u1ebft h\u1ee3p c\u00e1c \u01b0u \u0111i\u1ec3m c\u1ee7a l\u1edbp ph\u1ee7 v\u00f4 c\u01a1 v\u00e0 h\u1eefu c\u01a1, l\u1edbp ph\u1ee7 k\u00e9p \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo t\u1eebng giai \u0111o\u1ea1n ho\u1eb7c \u0111\u1ed3ng th\u1eddi \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u su\u1ea5t b\u1ed5 sung.<\/p>\n

1. Ph\u1ee7 v\u00f4 c\u01a1 tr\u01b0\u1edbc r\u1ed3i \u0111\u1ebfn ph\u1ee7 h\u1eefu c\u01a1<\/p>\n

2. Ph\u1ee7 \u0111\u1ed3ng b\u1ed9 v\u00f4 c\u01a1-h\u1eefu c\u01a1<\/p>\n

C\u00e1c c\u00f4ng ngh\u1ec7 ph\u1ee7 \u0111\u1eb7c bi\u1ec7t kh\u00e1c<\/p>\n

1. Ph\u1ee7 nano<\/p>\n

2. Ph\u1ee7 vi nang<\/p>\n

Nguy\u00ean l\u00fd: Bao b\u1ecdc c\u00e1c h\u1ea1t titanium dioxide trong c\u00e1c vi nang polymer, gi\u1ea3i ph\u00f3ng titanium dioxide b\u1eb1ng c\u00e1ch ki\u1ec3m so\u00e1t c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u1ee1 nang (nh\u01b0 nhi\u1ec7t \u0111\u1ed9, gi\u00e1 tr\u1ecb pH), ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c l\u1edbp ph\u1ee7 th\u00f4ng minh v\u00e0 h\u1ec7 th\u1ed1ng gi\u1ea3i ph\u00f3ng ch\u1eadm.<\/p>\n","protected":false},"excerpt":{"rendered":"

C\u00e1c ph\u01b0\u01a1ng ph\u00e1p c\u1ea3i ti\u1ebfn l\u1edbp ph\u1ee7 ph\u1ed5 bi\u1ebfn ch\u1ee7 y\u1ebfu bao g\u1ed3m ba lo\u1ea1i: l\u1edbp ph\u1ee7 v\u00f4 c\u01a1, l\u1edbp ph\u1ee7 h\u1eefu c\u01a1 v\u00e0 l\u1edbp ph\u1ee7 t\u1ed5ng h\u1ee3p<\/p>\n","protected":false},"author":7,"featured_media":135767,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-135804","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\/135804","targetHints":{"allow":["GET"]}}],"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=135804"}],"version-history":[{"count":1,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/135804\/revisions"}],"predecessor-version":[{"id":135805,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/135804\/revisions\/135805"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/135767"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=135804"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=135804"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=135804"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}