{"id":119052,"date":"2022-09-28T14:20:56","date_gmt":"2022-09-28T06:20:56","guid":{"rendered":"https:\/\/www.alpapowder.com\/119052\/"},"modified":"2022-09-28T14:20:56","modified_gmt":"2022-09-28T06:20:56","slug":"lam-the-nao-de-sua-doi-be-mat-cua-nano-kem-oxit-2","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/vi\/119052\/","title":{"rendered":"L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a nano k\u1ebdm oxit?"},"content":{"rendered":"

\"\"<\/p>\n

\u00d4x\u00edt k\u1ebdm nano 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. Do 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 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc \u0111\u1ed9c \u0111\u00e1o v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh h\u00f3a h\u1ecdc, quang h\u1ecdc, sinh h\u1ecdc v\u00e0 \u0111i\u1ec7n h\u1ecdc. 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, ch\u1ea5t ph\u1ee7, th\u1ee7y tinh, g\u1ed1m \u00e1p \u0111i\u1ec7n, quang \u0111i\u1ec7n t\u1eed v\u00e0 h\u00f3a ch\u1ea5t h\u00e0ng ng\u00e0y, v.v., ph\u00e1t tri\u1ec3n v\u00e0 s\u1eed d\u1ee5ng c\u00e1c tri\u1ec3n v\u1ecdng r\u1ed9ng r\u00e3i.<\/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 c\u1ee7a nano k\u1ebdm oxit, n\u00ean t\u00ednh ph\u00e2n c\u1ef1c b\u1ec1 m\u1eb7t m\u1ea1nh v\u00e0 d\u1ec5 k\u1ebft t\u1ee5; kh\u00f4ng d\u1ec5 ph\u00e2n t\u00e1n \u0111\u1ed3ng \u0111\u1ec1u trong m\u00f4i tr\u01b0\u1eddng h\u1eefu c\u01a1, \u0111i\u1ec1u n\u00e0y l\u00e0m h\u1ea1n ch\u1ebf r\u1ea5t nhi\u1ec1u t\u00e1c d\u1ee5ng nano c\u1ee7a n\u00f3. Do \u0111\u00f3, s\u1ef1 ph\u00e2n t\u00e1n v\u00e0 bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a b\u1ed9t nano k\u1ebdm oxit \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p x\u1eed l\u00fd c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi v\u1eadt li\u1ec7u nano \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng trong ch\u1ea5t n\u1ec1n.<\/p>\n

1. S\u1eeda \u0111\u1ed5i l\u1edbp ph\u1ee7 b\u1ec1 m\u1eb7t c\u1ee7a nano k\u1ebdm oxit<\/p>\n

\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t ch\u00ednh c\u1ee7a ch\u1ea5t \u0111\u1ed9n ho\u1eb7c ch\u1ea5t m\u00e0u v\u00f4 c\u01a1 hi\u1ec7n nay. Ch\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1ec1 m\u1eb7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bao ph\u1ee7 b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t \u0111\u1ec3 t\u1ea1o ra c\u00e1c \u0111\u1eb7c t\u00ednh m\u1edbi cho b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t. C\u00e1c ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh b\u1ec1 m\u1eb7t th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng bao g\u1ed3m ch\u1ea5t n\u1ed1i silan, ch\u1ea5t n\u1ed1i titanate, axit stearic, silicone, v.v.<\/p>\n

Wang Guohong v\u00e0 c\u1ed9ng s\u1ef1. \u0111\u00e3 s\u1eed d\u1ee5ng natri laurat \u0111\u1ec3 s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a nano k\u1ebdm oxit. Trong \u0111i\u1ec1u ki\u1ec7n l\u01b0\u1ee3ng natri xitrat l\u00e0 15%, gi\u00e1 tr\u1ecb pH l\u00e0 6, v\u00e0 th\u1eddi gian s\u1eeda \u0111\u1ed5i l\u00e0 1,5 gi\u1edd, t\u00ednh \u01b0a b\u00e9o c\u1ee7a oxit k\u1ebdm nano bi\u1ebfn t\u00ednh \u0111\u00e3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. \u0110\u1ed9 h\u00f3a h\u1ecdc \u0111\u1ea1t 79,2%, c\u00f3 th\u1ec3 ph\u00e2n t\u00e1n t\u1ed1t trong metanol v\u00e0 xylen. Zhuang Tao v\u00e0 c\u1ed9ng s\u1ef1. \u0111\u00e3 s\u1eed d\u1ee5ng t\u00e1c nh\u00e2n n\u1ed1i titanate \u0111\u1ec3 s\u1eeda \u0111\u1ed5i b\u1ec1 m\u1eb7t c\u1ee7a nano k\u1ebdm oxit. Khi l\u01b0\u1ee3ng titanat 3%, nhi\u1ec7t \u0111\u1ed9 30 \u00b0 C, th\u1eddi gian khu\u1ea5y 90 ph\u00fat, ch\u1ec9 s\u1ed1 ho\u1ea1t h\u00f3a c\u1ee7a nano k\u1ebdm oxit c\u00f3 th\u1ec3 \u0111\u1ea1t 99,83%. Khi oxit k\u1ebdm nano bi\u1ebfn t\u00ednh \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho cao su t\u1ef1 nhi\u00ean, tst v\u00e0 t90 c\u1ee7a n\u00f3 \u0111\u1ec1u \u0111\u01b0\u1ee3c k\u00e9o d\u00e0i, \u0111\u1ed3ng th\u1eddi \u0111\u1ed9 b\u1ec1n k\u00e9o, \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t v\u00e0 \u0111\u1ed9 m\u1ec1m d\u1ebbo \u0111\u1ec1u \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n.<\/p>\n

2. Bi\u1ebfn \u0111\u1ed5i c\u01a1 h\u1ecdc c\u1ee7a nano k\u1ebdm oxit<\/p>\n

\u0110\u00e2y l\u00e0 ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p nghi\u1ec1n th\u00e0nh b\u1ed9t, ma s\u00e1t v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p kh\u00e1c \u0111\u1ec3 k\u00edch ho\u1ea1t b\u1ec1 m\u1eb7t h\u1ea1t v\u1edbi \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc nh\u1eb1m thay \u0111\u1ed5i c\u1ea5u tr\u00fac tinh th\u1ec3 b\u1ec1 m\u1eb7t v\u00e0 c\u1ea5u tr\u00fac l\u00fd h\u00f3a c\u1ee7a n\u00f3. Trong ph\u01b0\u01a1ng ph\u00e1p n\u00e0y, m\u1ea1ng tinh th\u1ec3 ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c d\u1ecbch chuy\u1ec3n, n\u1ed9i n\u0103ng \u0111\u01b0\u1ee3c t\u0103ng l\u00ean, v\u00e0 b\u1ec1 m\u1eb7t b\u1ed9t ho\u1ea1t \u0111\u1ed9ng ph\u1ea3n \u1ee9ng v\u00e0 g\u1eafn v\u1edbi c\u00e1c ch\u1ea5t kh\u00e1c d\u01b0\u1edbi t\u00e1c d\u1ee5ng c\u1ee7a ngo\u1ea1i l\u1ef1c, \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch bi\u1ebfn \u0111\u1ed5i b\u1ec1 m\u1eb7t.<\/p>\n

Ph\u00e2n t\u1eed axit stearic \u0111\u01b0\u1ee3c li\u00ean k\u1ebft h\u00f3a h\u1ecdc tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a oxit k\u1ebdm, c\u1ea5u tr\u00fac tinh th\u1ec3 c\u1ee7a oxit k\u1ebdm tr\u01b0\u1edbc v\u00e0 sau khi \u0111i\u1ec1u ch\u1ec9nh l\u00e0 gi\u1ed1ng nhau, s\u1ef1 k\u1ebft t\u1ee5 c\u1ee7a c\u00e1c h\u1ea1t c\u1ee7a n\u00f3 b\u1ecb gi\u1ea3m \u0111i v\u00e0 k\u00edch th\u01b0\u1edbc h\u1ea1t th\u1ee9 c\u1ea5p gi\u1ea3m \u0111\u00e1ng k\u1ec3. B\u1eb1ng c\u00e1ch \u0111o ch\u1ec9 s\u1ed1 ho\u1ea1t h\u00f3a v\u00e0 t\u00ednh \u01b0a b\u00e9o c\u1ee7a c\u00e1c m\u1eabu \u0111\u00e3 s\u1eeda \u0111\u1ed5i, l\u01b0\u1ee3ng ch\u1ea5t \u0111i\u1ec1u ch\u1ec9nh t\u1ed1i \u01b0u l\u00e0 10% kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a oxit k\u1ebdm. B\u1ec1 m\u1eb7t c\u1ee7a oxit k\u1ebdm l\u00e0 ch\u1ea5t \u01b0a b\u00e9o v\u00e0 k\u1ef5 n\u01b0\u1edbc, c\u00f3 hi\u1ec7u su\u1ea5t ph\u00e2n t\u00e1n t\u1ed1t trong dung m\u00f4i h\u1eefu c\u01a1.<\/p>\n

3. S\u1eeda \u0111\u1ed5i ph\u1ea3n \u1ee9ng k\u1ebft t\u1ee7a oxit k\u1ebdm-nano<\/p>\n

Ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng c\u00e1c ch\u1ea5t h\u1eefu c\u01a1 ho\u1eb7c v\u00f4 c\u01a1 \u0111\u1ec3 l\u1eafng m\u1ed9t l\u1edbp ph\u1ee7 tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a c\u00e1c h\u1ea1t \u0111\u1ec3 thay \u0111\u1ed5i t\u00ednh ch\u1ea5t b\u1ec1 m\u1eb7t c\u1ee7a ch\u00fang.<\/p>\n

Hi\u1ec7n t\u1ea1i, m\u1ed9t s\u1ed1 \u0111\u1ed9t ph\u00e1 \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong c\u00f4ng ngh\u1ec7 \u0111i\u1ec1u ch\u1ebf oxit k\u1ebdm nano, v\u00e0 m\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t c\u00f4ng nghi\u1ec7p h\u00f3a \u0111\u00e3 \u0111\u01b0\u1ee3c th\u00e0nh l\u1eadp \u1edf Trung Qu\u1ed1c. Tuy nhi\u00ean, c\u00f4ng ngh\u1ec7 bi\u1ebfn t\u00ednh b\u1ec1 m\u1eb7t v\u00e0 c\u00f4ng ngh\u1ec7 \u1ee9ng d\u1ee5ng c\u1ee7a nano k\u1ebdm oxit v\u1eabn ch\u01b0a \u0111\u01b0\u1ee3c quan t\u00e2m nhi\u1ec1u v\u00e0 vi\u1ec7c ph\u00e1t tri\u1ec3n l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a n\u00f3 b\u1ecb h\u1ea1n ch\u1ebf r\u1ea5t nhi\u1ec1u. V\u00ec v\u1eady, c\u1ea7n t\u0103ng c\u01b0\u1eddng nghi\u00ean c\u1ee9u c\u1ea3i bi\u1ebfn b\u1ec1 m\u1eb7t v\u00e0 \u1ee9ng d\u1ee5ng s\u1ea3n ph\u1ea9m nano k\u1ebdm oxit, ph\u00e1t tri\u1ec3n c\u00e1c s\u1ea3n ph\u1ea9m hi\u1ec7u su\u1ea5t cao, m\u1edf r\u1ed9ng l\u0129nh v\u1ef1c \u1ee9ng d\u1ee5ng c\u1ee7a s\u1ea3n ph\u1ea9m \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nhu c\u1ea7u v\u1ec1 s\u1ea3n ph\u1ea9m nano k\u1ebdm oxit trong c\u00e1c l\u0129nh v\u1ef1c kh\u00e1c nhau.<\/p>\n","protected":false},"excerpt":{"rendered":"

\u00d4x\u00edt k\u1ebdm nano 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. Do 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 c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh v\u1eadt l\u00fd v\u00e0 h\u00f3a h\u1ecdc \u0111\u1ed9c \u0111\u00e1o v\u1ec1 c\u00e1c kh\u00eda c\u1ea1nh h\u00f3a h\u1ecdc, quang h\u1ecdc, sinh h\u1ecdc v\u00e0 \u0111i\u1ec7n h\u1ecdc.<\/p>\n","protected":false},"author":7,"featured_media":119028,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[852],"tags":[],"class_list":["post-119052","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\/119052","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=119052"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/119052\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/119028"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=119052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=119052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=119052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}