{"id":5359,"date":"2016-05-23T12:51:44","date_gmt":"2016-05-23T05:51:44","guid":{"rendered":"http:\/\/ttud.com.vn\/?p=5359"},"modified":"2017-10-02T14:49:54","modified_gmt":"2017-10-02T07:49:54","slug":"tao-ra-go-trong-suot-co-do-ben-cao-hon-thuy-tinh-than-thien-voi-moi-truong-hon-so-voi-nhua","status":"publish","type":"post","link":"https:\/\/casta.ttud.com.vn\/index.php\/tao-ra-go-trong-suot-co-do-ben-cao-hon-thuy-tinh-than-thien-voi-moi-truong-hon-so-voi-nhua\/","title":{"rendered":"T\u1ea1o ra g\u1ed7 trong su\u1ed1t c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n th\u1ee7y tinh, th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u01a1n so v\u1edbi nh\u1ef1a"},"content":{"rendered":"

B\u1eb1ng c\u00e1ch t\u00e1ch h\u1ebft m\u00e0u s\u1eafc v\u00e0 nhi\u1ec1u h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc ra kh\u1ecfi m\u1ed9t kh\u1ed1i g\u1ed7, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc Maryland \u0111\u00e3 t\u1ea1o n\u00ean m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u trong su\u1ed1t nh\u01b0 th\u1ee7y tinh nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n, \u0111\u1ed3ng th\u1eddi l\u1ea1i th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u01a1n so v\u1edbi nh\u1ef1a. N\u1ebfu h\u1ecd t\u00ecm \u0111\u01b0\u1ee3c c\u00e1ch \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh th\u1ef1c hi\u1ec7n v\u00e0 gi\u1ea3m chi ph\u00ed s\u1ea3n xu\u1ea5t th\u00ec kh\u00f4ng l\u00e2u n\u1eefa, c\u1eeda s\u1ed5 ho\u1eb7c k\u00ednh \u1edf c\u00e1c t\u00f2a nh\u00e0 c\u1ee7a b\u1ea1n s\u1ebd c\u00f3 ngu\u1ed3n g\u1ed1c t\u1eeb g\u1ed7, kh\u00f3 v\u1ee1 h\u01a1n v\u00e0 c\u0169ng d\u1ec5 t\u00e1i ch\u1ebf h\u01a1n.<\/strong><\/p>\n

\"\"<\/p>\n

Th\u1eadt ra th\u00ec \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ea7n \u0111\u1ea7u ti\u00ean c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u mu\u1ed1n t\u1ea1o ra g\u1ed7 trong su\u1ed1t. Tr\u01b0\u1edbc \u0111\u00e2y m\u1ed9t nh\u00f3m nghi\u00ean c\u1ee9u t\u1ea1i Th\u1ee5y \u0110i\u1ec3n c\u0169ng t\u1eebng t\u1ea1o n\u00ean lo\u1ea1i v\u1eadt li\u1ec7u trong su\u1ed1t t\u1eeb b\u1ed9t gi\u1ea5y b\u1eb1ng c\u00e1ch thay th\u1ebf c\u1ea5u tr\u00fac v\u1eadt li\u1ec7u b\u1eb1ng polymer trong su\u1ed1t. Tuy nhi\u00ean k\u1ef9 thu\u1eadt n\u00e0y v\u1eabn ch\u01b0a th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng. L\u1ea7n n\u00e0y, c\u00e1c nh\u00e0 khoa h\u1ecdc t\u1ea1i Maryland v\u1eabn s\u1eed d\u1ee5ng m\u1ed9t quy tr\u00ecnh 2 giai \u0111o\u1ea1n nh\u01b0ng kh\u00f4ng x\u00e0i polymer n\u1eefa.<\/p>\n

\u0110\u1ea7u ti\u00ean, h\u1ecd n\u1ea5u s\u00f4i g\u1ed7 trong n\u01b0\u1edbc, sau \u0111\u00f3 ng\u00e2m n\u00f3 v\u00e0o NaOH v\u00e0 m\u1ed9t v\u00e0i h\u00f3a ch\u1ea5t kh\u00e1c trong v\u00f2ng 2 gi\u1edd. Qu\u00e1 tr\u00ecnh n\u00e0y s\u1ebd lo\u1ea1i b\u1ecf lignin, c\u00e1c ph\u00e2n t\u1eed v\u1ed1n t\u1ea1o n\u00ean m\u00e0u s\u1eafc c\u1ee7a g\u1ed7. Ti\u1ebfp theo, h\u1ecd d\u00f9ng keo apoxy \u0111\u1ed5 v\u00e0o \u0111\u1ec3 gi\u00fap kh\u1ed1i g\u1ed7 c\u1ee9ng h\u01a1n t\u1eeb 4 \u0111\u1ebfn 5 l\u1ea7n v\u00e0 c\u00e1i m\u00e0 h\u1ecd \u0111\u00e1nh \u0111\u1ed5i \u1edf \u0111\u00e2y ch\u00ednh l\u00e0 ch\u1ea5p nh\u1eadn gi\u1ea3m t\u00ednh th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng xu\u1ed1ng m\u1ed9t ch\u00fat.<\/p>\n

D\u00f9 v\u1eady, m\u1ed9t l\u1ee3i \u0111i\u1ec3m c\u1ee7a quy tr\u00ecnh n\u00e0y ch\u00ednh l\u00e0 gi\u1eef l\u1ea1i c\u1ea5u tr\u00fac v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng m\u1ea1ch khi kh\u1ed1i g\u1ed7 h\u00ecnh th\u00e0nh t\u1ef1 nhi\u00ean tr\u00ean c\u00e2y. C\u00e1c m\u1ea1ch d\u1eabn si\u00eau nh\u1ecf n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng d\u1eabn \u00e1nh s\u00e1ng t\u01b0\u01a1ng t\u1ef1 nh\u01b0 c\u00e1ch n\u00f3 d\u1eabn ch\u1ea5t dinh d\u01b0\u1ee1ng \u0111i kh\u1eafp c\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a c\u00e2y. M\u1ed9t th\u00e0nh vi\u00ean trong nh\u00f3m nghi\u00ean c\u1ee9u cho bi\u1ebft: “\u0110\u1ed1i v\u1edbi lo\u1ea1i v\u1eadt li\u1ec7u truy\u1ec1n th\u1ed1ng th\u00ec \u00e1nh s\u00e1ng s\u1ebd b\u1ecb t\u00e1n x\u1ea1. N\u1ebfu b\u1ea1n cho g\u1ed7 kh\u1ea3 n\u0103ng d\u1eabn \u00e1nh s\u00e1ng v\u00e0 d\u00f9ng thay cho k\u00ednh th\u00ec nh\u00e0 b\u1ea1n s\u1ebd c\u00f3 nhi\u1ec1u \u00e1nh s\u00e1ng h\u01a1n.”<\/p>\n

V\u1eady li\u1ec7u trong t\u01b0\u01a1ng lai t\u1ea5t c\u1ea3 c\u1eeda k\u00ednh trong nh\u00e0 c\u1ee7a ch\u00fang ta s\u1ebd \u0111\u01b0\u1ee3c l\u00e0m ra t\u1eeb k\u00ednh? Nh\u1eefng ng\u00f4i nh\u00e0 g\u1ed7 s\u1ebd trong su\u1ed1t lu\u00f4n? T\u01b0\u01a1ng lai \u0111\u00f3 v\u1eabn c\u00f2n qu\u00e1 s\u1edbm \u0111\u1ec3 m\u01a1 t\u1edbi b\u1edfi l\u1ebd hi\u1ec7n t\u1ea1i nh\u00f3m nghi\u00ean c\u1ee9u v\u1eabn \u0111ang m\u1eafc ph\u1ea3i m\u1ed9t v\u1ea5n \u0111\u1ec1 ch\u00ednh l\u00e0 k\u00edch th\u01b0\u1edbc. Hi\u1ec7n t\u1ea1i m\u1ea3nh g\u1ed7 trong su\u1ed1t c\u00f3 k\u00edch th\u01b0\u1edbc c\u00f3 kho\u1ea3ng 12 x 12 x 1 cm, \u0111\u1ee7 \u0111\u1ec3 ch\u00fang ta c\u00f3 th\u1ec3 nh\u00ecn xuy\u00ean qua. Tuy nhi\u00ean \u0111\u1ec3 \u00e1p d\u1ee5ng trong th\u1ef1c t\u1ebf th\u00ec nh\u00f3m ph\u1ea3i t\u1ea1o n\u00ean nh\u1eefng m\u1ea3nh g\u1ed7 l\u1edbn h\u01a1n, d\u00e0y h\u01a1n nh\u1eb1m \u00e1p d\u1ee5ng \u0111a d\u1ea1ng h\u01a1n trong th\u1ef1c t\u1ebf.<\/p>\n

Tham kh\u1ea3o NYtimes\u200b<\/em><\/strong><\/p>\n

Ngu\u1ed3n tinhte.vn<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

B\u1eb1ng c\u00e1ch t\u00e1ch h\u1ebft m\u00e0u s\u1eafc v\u00e0 nhi\u1ec1u h\u1ee3p ch\u1ea5t h\u00f3a h\u1ecdc ra kh\u1ecfi m\u1ed9t kh\u1ed1i g\u1ed7, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc Maryland \u0111\u00e3 t\u1ea1o n\u00ean m\u1ed9t lo\u1ea1i v\u1eadt li\u1ec7u trong su\u1ed1t nh\u01b0 th\u1ee7y tinh nh\u01b0ng c\u00f3 \u0111\u1ed9 b\u1ec1n cao h\u01a1n, \u0111\u1ed3ng th\u1eddi l\u1ea1i th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng h\u01a1n so v\u1edbi nh\u1ef1a. […]<\/p>\n","protected":false},"author":17,"featured_media":5481,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47],"tags":[],"class_list":["post-5359","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5359","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/comments?post=5359"}],"version-history":[{"count":3,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5359\/revisions"}],"predecessor-version":[{"id":5483,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/posts\/5359\/revisions\/5483"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media\/5481"}],"wp:attachment":[{"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/media?parent=5359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/categories?post=5359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/casta.ttud.com.vn\/index.php\/wp-json\/wp\/v2\/tags?post=5359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}