{"id":136323,"date":"2025-09-08T14:05:19","date_gmt":"2025-09-08T06:05:19","guid":{"rendered":"https:\/\/www.alpapowder.com\/136323\/"},"modified":"2025-09-08T14:05:19","modified_gmt":"2025-09-08T06:05:19","slug":"sau-phuong-phap-bien-tinh-chinh-cua-nano-kem-oxit","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/136323\/","title":{"rendered":"S\u00e1u ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh ch\u00ednh c\u1ee7a nano k\u1ebdm oxit"},"content":{"rendered":"

\"\"<\/p>\n

Nano k\u1ebdm oxit l\u00e0 m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u h\u00f3a h\u1ecdc v\u00f4 c\u01a1 m\u1ecbn ch\u1ee9c n\u0103ng m\u1edbi. Nh\u1edd k\u00edch th\u01b0\u1edbc h\u1ea1t nh\u1ecf v\u00e0 di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn, n\u00f3 s\u1edf h\u1eefu c\u00e1c t\u00ednh ch\u1ea5t l\u00fd h\u00f3a \u0111\u1ed9c \u0111\u00e1o trong h\u00f3a h\u1ecdc, quang h\u1ecdc, sinh h\u1ecdc v\u00e0 \u0111i\u1ec7n t\u1eed. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c ch\u1ea5t ph\u1ee5 gia kh\u00e1ng khu\u1ea9n, ch\u1ea5t x\u00fac t\u00e1c, cao su, thu\u1ed1c nhu\u1ed9m, m\u1ef1c in, l\u1edbp ph\u1ee7, th\u1ee7y tinh, g\u1ed1m \u00e1p \u0111i\u1ec7n, quang \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng h\u00f3a ch\u1ea5t h\u00e0ng ng\u00e0y, \u0111\u1ed3ng th\u1eddi c\u00f3 tri\u1ec3n v\u1ecdng l\u1edbn trong vi\u1ec7c ph\u00e1t tri\u1ec3n v\u00e0 s\u1eed d\u1ee5ng.<\/p>\n

Tuy nhi\u00ean, do di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn v\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t ri\u00eang cao, nano k\u1ebdm oxit c\u00f3 \u0111\u1ed9 ph\u00e2n c\u1ef1c b\u1ec1 m\u1eb7t m\u1ea1nh, d\u1ec5 t\u1ef1 k\u1ebft t\u1ee5 v\u00e0 kh\u00f3 ph\u00e2n t\u00e1n \u0111\u1ec1u trong m\u00f4i tr\u01b0\u1eddng h\u1eefu c\u01a1, l\u00e0m h\u1ea1n ch\u1ebf \u0111\u00e1ng k\u1ec3 hi\u1ec7u \u1ee9ng nano c\u1ee7a n\u00f3. Do \u0111\u00f3, vi\u1ec7c ph\u00e2n t\u00e1n v\u00e0 bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t b\u1ed9t nano k\u1ebdm oxit l\u00e0 nh\u1eefng x\u1eed l\u00fd thi\u1ebft y\u1ebfu tr\u01b0\u1edbc khi v\u1eadt li\u1ec7u nano c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong n\u1ec1n.<\/p>\n

1. Bi\u1ebfn t\u00ednh ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t<\/p>\n

Bi\u1ebfn t\u00ednh ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t li\u00ean quan \u0111\u1ebfn t\u01b0\u01a1ng t\u00e1c t\u0129nh \u0111i\u1ec7n c\u1ee7a c\u00e1c ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp ph\u1ee7 h\u1eefu c\u01a1 tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nano, t\u1eeb \u0111\u00f3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u1ee7a ch\u00fang v\u1edbi n\u1ec1n h\u1eefu c\u01a1.<\/p>\n

M\u1eb7c d\u00f9 bi\u1ebfn t\u00ednh ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh \u0111\u01a1n gi\u1ea3n, nh\u01b0ng hi\u1ec7u qu\u1ea3 c\u1ee7a n\u00f3 th\u01b0\u1eddng k\u00e9m, khi\u1ebfn vi\u1ec7c t\u1ea1o ra m\u1ed9t l\u1edbp ph\u1ee7 \u1ed5n \u0111\u1ecbnh v\u00e0 b\u1ec1n v\u1eefng tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nano tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/p>\n

2. Bi\u1ebfn t\u00ednh c\u01a1 h\u00f3a<\/p>\n

Bi\u1ebfn t\u00ednh c\u01a1 h\u00f3a s\u1eed d\u1ee5ng l\u1ef1c c\u01a1 h\u1ecdc \u0111\u1ec3 thay \u0111\u1ed5i c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc c\u1ee7a v\u1eadt li\u1ec7u nano, do \u0111\u00f3 t\u0103ng c\u01b0\u1eddng \u00e1i l\u1ef1c v\u00e0 kh\u1ea3 n\u0103ng ph\u1ea3n \u1ee9ng c\u1ee7a ch\u00fang v\u1edbi c\u00e1c ch\u1ea5t kh\u00e1c.<\/p>\n

Tuy nhi\u00ean, bi\u1ebfn t\u00ednh c\u01a1 h\u00f3a th\u01b0\u1eddng m\u1ea5t nhi\u1ec1u th\u1eddi gian v\u00e0 th\u01b0\u1eddng cho k\u1ebft qu\u1ea3 k\u00e9m \u0111\u1ed1i v\u1edbi v\u1eadt li\u1ec7u nano.<\/p>\n

3. Bi\u1ebfn t\u00ednh n\u0103ng l\u01b0\u1ee3ng cao<\/p>\n

Bi\u1ebfn t\u00ednh n\u0103ng l\u01b0\u1ee3ng cao bao g\u1ed3m qu\u00e1 tr\u00ecnh tr\u00f9ng h\u1ee3p c\u00e1c monome h\u1ee3p ch\u1ea5t h\u1eefu c\u01a1 b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd plasma ho\u1eb7c b\u1ee9c x\u1ea1, sau \u0111\u00f3 ph\u1ee7 l\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nano.<\/p>\n

Bi\u1ebfn t\u00ednh n\u0103ng l\u01b0\u1ee3ng cao th\u01b0\u1eddng \u0111\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 t\u1ed1t h\u01a1n hai ph\u01b0\u01a1ng ph\u00e1p tr\u01b0\u1edbc, nh\u01b0ng n\u00f3 c\u00f3 nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0 ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng cao v\u00e0 kh\u00f3 kh\u0103n v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt.<\/p>\n

4. Bi\u1ebfn t\u00ednh este h\u00f3a<\/p>\n

Este h\u00f3a l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t s\u1eed d\u1ee5ng c\u00e1c nh\u00f3m axit cacboxylic trong c\u00e1c ch\u1ea5t bi\u1ebfn t\u00ednh nh\u01b0 axit b\u00e9o b\u1eadc cao ho\u1eb7c axit h\u1eefu c\u01a1 kh\u00f4ng b\u00e3o h\u00f2a \u0111\u1ec3 ph\u1ea3n \u1ee9ng v\u1edbi c\u00e1c nh\u00f3m hydroxyl tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nano \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c qu\u00e1 tr\u00ecnh este h\u00f3a.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p este h\u00f3a \u0111\u01a1n gi\u1ea3n, nh\u01b0ng hi\u1ec7u qu\u1ea3 bi\u1ebfn t\u00ednh c\u1ee7a n\u00f3 k\u00e9m v\u00e0 th\u01b0\u1eddng c\u1ea7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi t\u00e1c nh\u00e2n li\u00ean k\u1ebft.<\/p>\n

5. Gh\u00e9p polyme<\/p>\n

Gh\u00e9p polyme bao g\u1ed3m vi\u1ec7c \u0111\u1ea7u ti\u00ean gh\u00e9p m\u1ed9t monome polyme l\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u nano, sau \u0111\u00f3 b\u1eaft \u0111\u1ea7u ph\u1ea3n \u1ee9ng tr\u00f9ng h\u1ee3p \u0111\u1ec3 k\u00e9o d\u00e0i chu\u1ed7i cacbon, v\u00e0 cu\u1ed1i c\u00f9ng cho ph\u00e9p polyme ph\u1ee7 l\u00ean to\u00e0n b\u1ed9 v\u1eadt li\u1ec7u nano.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p gh\u00e9p polyme v\u1eadn h\u00e0nh ph\u1ee9c t\u1ea1p, v\u00e0 hi\u1ec7u qu\u1ea3 bi\u1ebfn t\u00ednh b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi nhi\u1ec1u y\u1ebfu t\u1ed1, khi\u1ebfn vi\u1ec7c \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/p>\n

6. Bi\u1ebfn t\u00ednh b\u1eb1ng t\u00e1c nh\u00e2n li\u00ean k\u1ebft<\/p>\n

T\u00e1c nh\u00e2n li\u00ean k\u1ebft d\u1ef1a tr\u00ean nguy\u00ean t\u1ed1 silic ho\u1eb7c kim lo\u1ea1i, v\u1edbi hai nh\u00f3m kh\u00e1c nhau \u1edf m\u1ed7i b\u00ean c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi c\u00e1c n\u1ec1n v\u00f4 c\u01a1 v\u00e0 h\u1eefu c\u01a1. Ba th\u00e0nh ph\u1ea7n n\u00e0y ho\u1ea1t \u0111\u1ed9ng c\u00f9ng nhau \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 bi\u1ebfn t\u00ednh h\u00f3a h\u1ecdc c\u1ee7a v\u1eadt li\u1ec7u nano. Nano k\u1ebdm oxit \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh b\u1eb1ng t\u00e1c nh\u00e2n li\u00ean k\u1ebft silan APS. C\u1ea3 nano k\u1ebdm oxit \u0111\u00e3 bi\u1ebfn t\u00ednh v\u00e0 ch\u01b0a bi\u1ebfn t\u00ednh \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u00e2n t\u00e1n trong etanol khan \u0111\u1ec3 chu\u1ea9n b\u1ecb m\u1ef1c in s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u l\u1edbp truy\u1ec1n \u0111i\u1ec7n t\u1eed trong pin quang \u0111i\u1ec7n. Hi\u1ec7u su\u1ea5t c\u1ee7a hai lo\u1ea1i m\u1ef1c sau \u0111\u00f3 \u0111\u01b0\u1ee3c so s\u00e1nh. K\u1ebft qu\u1ea3 cho th\u1ea5y nano-k\u1ebdm oxit bi\u1ebfn t\u00ednh ph\u00e2n t\u00e1n t\u1ed1t h\u01a1n trong etanol khan v\u00e0 duy tr\u00ec tr\u1ea1ng th\u00e1i k\u1ebft t\u1ee5 trong 12 th\u00e1ng. V\u1eadt li\u1ec7u l\u1edbp v\u1eadn chuy\u1ec3n \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng t\u00e1c nh\u00e2n n\u00e0y cho th\u1ea5y hi\u1ec7u su\u1ea5t truy\u1ec1n \u0111i\u1ec7n t\u1eed cao h\u01a1n v\u00e0 c\u00f3 th\u1ec3 \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n hi\u1ec7u su\u1ea5t thi\u1ebft b\u1ecb \u1edf \u0111\u1ed9 d\u00e0y m\u1ecfng h\u01a1n.<\/p>\n

Nano-k\u1ebdm oxit \u0111\u01b0\u1ee3c bi\u1ebfn t\u00ednh h\u00f3a h\u1ecdc b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng t\u00e1c nh\u00e2n li\u00ean k\u1ebft silan mang nh\u00f3m ch\u1ee9c glycyloxy v\u00e0 amino. C\u1ea3 nano-k\u1ebdm oxit bi\u1ebfn t\u00ednh v\u00e0 ch\u01b0a bi\u1ebfn t\u00ednh \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o l\u1edbp ph\u1ee7 epoxy \u0111\u1ec3 th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng ch\u1ecbu th\u1eddi ti\u1ebft. K\u1ebft qu\u1ea3 cho th\u1ea5y l\u1edbp ph\u1ee7 epoxy ch\u1ee9a nano-k\u1ebdm oxit bi\u1ebfn t\u00ednh b\u1eb1ng t\u00e1c nh\u00e2n li\u00ean k\u1ebft glycyloxy silan cho th\u1ea5y s\u1ef1 thay \u0111\u1ed5i nh\u1ecf h\u01a1n \u0111\u00e1ng k\u1ec3 v\u1ec1 g\u00f3c ti\u1ebfp x\u00fac, m\u00e0u s\u1eafc v\u00e0 nh\u00f3m carbonyl sau 450 gi\u1edd phong h\u00f3a t\u0103ng t\u1ed1c, ch\u1ee9ng t\u1ecf kh\u1ea3 n\u0103ng ch\u1ecbu th\u1eddi ti\u1ebft \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 so v\u1edbi l\u1edbp ph\u1ee7 epoxy ch\u1ee9a nano-k\u1ebdm oxit ch\u01b0a bi\u1ebfn t\u00ednh.<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng t\u00e1c nh\u00e2n li\u00ean k\u1ebft l\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn t\u00ednh h\u1ee9a h\u1eb9n nh\u1ea5t do quy tr\u00ecnh \u0111\u01a1n gi\u1ea3n, hi\u1ec7u qu\u1ea3 bi\u1ebfn t\u00ednh t\u1ed1t v\u00e0 chi ph\u00ed th\u1ea5p.<\/p>\n

So s\u00e1nh c\u00e1c ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t kh\u00e1c nhau \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean v\u00e0 xem x\u00e9t c\u1ea3 hi\u1ec7u qu\u1ea3 bi\u1ebfn \u0111\u1ed5i v\u00e0 \u0111\u1ed9 kh\u00f3, c\u00f3 th\u1ec3 th\u1ea5y r\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p este h\u00f3a v\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00e1c nh\u00e2n li\u00ean k\u1ebft ph\u00f9 h\u1ee3p h\u01a1n \u0111\u1ec3 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a v\u1eadt li\u1ec7u nano.<\/p>\n","protected":false},"excerpt":{"rendered":"

Tuy nhi\u00ean, do di\u1ec7n t\u00edch b\u1ec1 m\u1eb7t ri\u00eang l\u1edbn v\u00e0 n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t ri\u00eang cao n\u00ean nanok\u1ebdm oxit c\u00f3 t\u00ednh ph\u00e2n c\u1ef1c b\u1ec1 m\u1eb7t m\u1ea1nh, d\u1ec5 t\u1ef1 k\u1ebft t\u1ee5 v\u00e0 kh\u00f3 ph\u00e2n t\u00e1n \u0111\u1ec1u trong m\u00f4i tr\u01b0\u1eddng h\u1eefu c\u01a1, l\u00e0m h\u1ea1n ch\u1ebf \u0111\u00e1ng k\u1ec3 hi\u1ec7u \u1ee9ng nano c\u1ee7a n\u00f3.<\/p>\n","protected":false},"author":7,"featured_media":136298,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-136323","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\/136323","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=136323"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/136323\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/136298"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=136323"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=136323"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=136323"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}