N\u1ebfu ai \u0111\u00f3 \u0111\u1eb7t ra c\u00e2u h\u1ecfi d\u00e2y ch\u00e3o b\u1ec7n t\u1eeb v\u1eadt li\u1ec7u s\u1ee3i n\u00e0o th\u00ec b\u1ec1n nh\u1ea5t? Ng\u01b0\u1eddi ta s\u1ebd kh\u00f4ng do d\u1ef1 v\u00e0 tr\u1ea3 l\u1eddi: d\u00e2y nilong. Nilong l\u00e0 lo\u1ea1i s\u1ee3i t\u1ed5ng h\u1ee3p r\u1ea5t quen thu\u1ed9c v\u1edbi m\u1ecdi ng\u01b0\u1eddi. Ng\u01b0\u1eddi ta th\u01b0\u1eddng g\u1eb7p lo\u1ea1i nilong 6 v\u00e0 nilong<\/p>\n\n\n\n
S\u1ee3i nilong c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m l\u00e0 c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 cao, \u0111\u00e0n h\u1ed3i t\u1ed1t, t\u00ednh ch\u1ecbu m\u00e0i m\u00f2n t\u1ed1t. Ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng s\u1ee3i nilong \u0111\u1ec3 \u0111an l\u01b0\u1edbi \u0111\u00e1nh c\u00e1, l\u00e0m d\u00e2y d\u00f9, d\u1ec7t b\u00edt t\u1ea5t c\u00f3 hi\u1ec7u qu\u1ea3 t\u1ed1t.<\/p>\n\n\n\n
S\u1ee3i nilong c\u00f2n \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 “nh\u1ecf h\u01a1n t\u01a1 nh\u1ec7n, b\u1ec1n h\u01a1n s\u1ee3i th\u00e9p”. N\u00f3i nh\u01b0 th\u1ebf kh\u00f4ng h\u1ec1 khoa tr\u01b0\u01a1ng t\u00ed n\u00e0o: Theo c\u00e1c k\u1ebft qu\u1ea3 \u0111o th\u1eed, s\u1ee3i nilong 66 c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 k\u00e9o \u0111\u1ee9t, \u0111\u1ed9 b\u1ec1n c\u00f2n h\u01a1n c\u1ea3 s\u1ee3i th\u00e9p th\u01b0\u1eddng c\u00f3 c\u00f9ng k\u00edch c\u1ee1. Sau nilong, c\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f2n t\u1ed5ng h\u1ee3p \u0111\u01b0\u1ee3c lo\u1ea1i s\u1ee3i c\u00f3 c\u01b0\u1eddng \u0111\u1ed9 c\u00f2n cao h\u01a1n c\u1ea3 nilong, \u0111\u00f3 l\u00e0 s\u1ee3i “kaiphula” l\u00e0 lo\u1ea1i s\u1ee3i t\u1ed5ng h\u1ee3p thu\u1ed9c h\u1ecd polyamit th\u01a1m. Lo\u1ea1i s\u1ee3i t\u1ed5ng h\u1ee3p n\u00e0y c\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o \u0111\u1ee9t g\u1ea5p 2,8 l\u1ea7n nilong 66, h\u01a1n s\u1ee3i th\u00e9p 6 – 7 l\u1ea7n m\u00e0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a s\u1ee3i ch\u1ec9 b\u1eb1ng 1\/5 tr\u1ecdng l\u01b0\u1ee3ng s\u1ee3i th\u00e9p c\u00f9ng k\u00edch c\u1ee1. Ng\u01b0\u1eddi ta \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u00ed nghi\u1ec7m v\u00e0 t\u00ecm th\u1ea5y m\u1ed9t s\u1ee3i d\u00e2y b\u1eb1ng s\u1ee3i kaiphula c\u1ee1 6 mm c\u00f3 th\u1ec3 treo \u0111\u01b0\u1ee3c m\u1ed9t chi\u1ebfc \u00f4 t\u00f4 n\u1eb7ng 2 t\u1ea5n.<\/p>\n\n\n\n
Qu\u1ea3 l\u00e0 \u0111\u00e1ng kinh ng\u1ea1c. Do c\u00f3 t\u00ednh ch\u1ea5t \u0111\u1eb7c bi\u1ec7t nh\u01b0 v\u1eady s\u1ee3i kaipula \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m v\u1eadt li\u1ec7u nh\u1eb9 cho ng\u00e0nh h\u00e0ng kh\u00f4ng. Ng\u01b0\u1eddi ta \u0111\u00e3 d\u00f9ng s\u1ee3i kaiphula v\u00e0 s\u1ee3i cacbon trong vi\u1ec7c ch\u1ebf t\u1ea1o th\u00e2n m\u00e1y bay Boeing 727 \u0111\u00e3 l\u00e0m tr\u1ecdng l\u01b0\u1ee3ng m\u00e1y bay gi\u1ea3m \u0111i 1 t\u1ea5n, nh\u1edd \u0111\u00f3 l\u01b0\u1ee3ng d\u1ea7u ti\u00eau hao gi\u1ea3m \u0111\u01b0\u1ee3c 30%. Kaiphula c\u0169ng l\u00e0 v\u1eadt li\u1ec7u l\u00fd t\u01b0\u1edfng \u0111\u1ec3 ch\u1ebf t\u1ea1o \u00e1o ph\u00f2ng \u0111\u1ea1n v\u00ec v\u1eeba c\u00f3 t\u00ednh \u0111\u00e0n h\u1ed3i t\u1ed1t, l\u1ea1i v\u1eeba nh\u1eb9. Ng\u00e0y nay lo\u1ea1i h\u1ee3p ch\u1ea5t cao ph\u00e2n t\u1eed kaiphula \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i v\u00e0o vi\u1ec7c b\u1ec7n d\u00e2y ch\u00e3o, v\u1eadt li\u1ec7u ch\u1ecbu \u00e1p l\u1ef1c cao, ch\u1ebf t\u1ea1o d\u00e0n anten ra\u0111a, l\u00e0m v\u1ecf cho \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda\u2026<\/p>\n\n\n\n
S\u1edf d\u0129 nilong v\u00e0 kaiphula b\u1ec1n nh\u01b0 v\u1eady l\u00e0 do ch\u00fang c\u00f3 c\u1ea5u tr\u00fac b\u1ec1n v\u1eefng. Trong ph\u00e2n t\u1eed s\u1ee3i polyamit, c\u00e1c g\u1ed1c amit \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau th\u00e0nh d\u00e2y x\u00edch nh\u1edd c\u00e1c li\u00ean k\u1ebft hy\u0111ro, l\u00e0m cho l\u1ef1c li\u00ean k\u1ebft gi\u1eefa c\u00e1c ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng, nh\u1edd \u0111\u00f3 b\u1ea3o \u0111\u1ea3m \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ee3i. Ngo\u00e0i ra \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ee3i c\u00e1p b\u1ec7n c\u00f2n li\u00ean quan \u0111\u1ebfn k\u1ef9 thu\u1eadt s\u1ee3i t\u01a1. V\u00ed d\u1ee5 s\u1ee3i nilong \u0111\u01b0\u1ee3c t\u1ea1o ra nh\u1edd k\u1ef9 thu\u1eadt k\u00e9o s\u1ee3i khi n\u00f3ng ch\u1ea3y t\u1ee9c l\u00e0 vi\u1ec7c k\u00e9o s\u1ee3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n sau khi \u0111\u00e3 l\u00e0m v\u1eadt li\u1ec7u t\u1ed5ng h\u1ee3p n\u00f3ng ch\u1ea3y; c\u00f2n s\u1ee3i kaiphula l\u1ea1i \u0111\u01b0\u1ee3c k\u00e9o s\u1ee3i t\u1eeb dung d\u1ecbch: H\u1ee3p ch\u1ea5t cao ph\u00e2n t\u1eed \u0111\u01b0\u1ee3c ho\u00e0 tan th\u00e0nh dung d\u1ecbch b\u1eb1ng dung m\u00f4i, sau \u0111\u00f3 vi\u1ec7c k\u00e9o s\u1ee3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1eeb dung d\u1ecbch thu \u0111\u01b0\u1ee3c. V\u00ec v\u1eady v\u1edbi s\u1ee3i kaiphula d\u00f9ng dao c\u1eaft c\u0169ng r\u1ea5t kh\u00f3 \u0111\u1ee9t.<\/p>\n\n\n\n
C\u00e1c nh\u00e0 khoa h\u1ecdc c\u00f2n d\u1ef1 \u0111o\u00e1n, sau n\u00e0y n\u1ebfu d\u00f9ng k\u1ef9 thu\u1eadt k\u00e9o s\u1ee3i m\u1edbi b\u1eb1ng t\u1eeb tr\u01b0\u1eddng th\u00ec c\u01b0\u1eddng \u0111\u1ed9 s\u1ee3i t\u1ed5ng h\u1ee3p c\u00f3 th\u1ec3 t\u0103ng l\u00ean 1 – 2 l\u1ea7n. L\u00fac b\u1ea5y gi\u1edd c\u00e1c d\u00e2y ch\u00e3o, d\u00e2y th\u1eebng m\u00e0 ch\u00fang ta d\u00f9ng s\u1ebd r\u1ea5t nh\u1ecf, nh\u1eb9; m\u00e1y bay, t\u00ean l\u1eeda c\u0169ng s\u1ebd nh\u1eb9 h\u01a1n \u0111i r\u1ea5t nhi\u1ec1u.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: S\u1ee3i t\u1ed5ng h\u1ee3p; Nilong; Kaiphula.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
N\u1ebfu ai \u0111\u00f3 \u0111\u1eb7t ra c\u00e2u h\u1ecfi d\u00e2y ch\u00e3o b\u1ec7n t\u1eeb v\u1eadt li\u1ec7u s\u1ee3i n\u00e0o th\u00ec b\u1ec1n nh\u1ea5t? Ng\u01b0\u1eddi ta s\u1ebd kh\u00f4ng do d\u1ef1 v\u00e0 tr\u1ea3 l\u1eddi: d\u00e2y nilong. Nilong l\u00e0 lo\u1ea1i s\u1ee3i t\u1ed5ng h\u1ee3p r\u1ea5t quen thu\u1ed9c v\u1edbi m\u1ecdi ng\u01b0\u1eddi. Ng\u01b0\u1eddi ta th\u01b0\u1eddng g\u1eb7p lo\u1ea1i nilong 6 v\u00e0 nilong S\u1ee3i nilong c\u00f3 \u0111\u1eb7c \u0111i\u1ec3m […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[8,15],"tags":[],"class_list":["post-7887","post","type-post","status-publish","format-standard","hentry","category-hoa-hoc","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=7887"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7887\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}