T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 9 – Arkady Leokum<\/p>\n\n\n\n
M\u1ed9t v\u00e0i lo\u1ea1i s\u1ee3i nh\u01b0 b\u00f4ng v\u1ea3i, len, l\u1ee5a, v\u1ea3i lanh, l\u00f4ng th\u00fa l\u00e0 s\u1ee3i t\u1ef1 nhi\u00ean, c\u00f3 th\u1ec3 do nh\u00e0 m\u00e1y ho\u1eb7c do th\u00fa v\u1eadt s\u1ea3n xu\u1ea5t ra. Nh\u1eefng lo\u1ea1i s\u1ee3i kh\u00e1c nh\u01b0 ryon, dacron, saran l\u00e0 nh\u1eefng s\u1ee3i nh\u00e2n t\u1ea1o. Mu\u1ed1n hi\u1ec3u th\u1ebf n\u00e0o l\u00e0 s\u1ee3i nh\u00e2n t\u1ea1o, hay c\u00f2n g\u1ecdi l\u00e0 s\u1ee3i t\u1ed5ng h\u1ee3p, ch\u00fang ta ph\u1ea3i bi\u1ebft th\u1ebf n\u00e0o l\u00e0 s\u1ee3i tr\u01b0\u1edbc \u0111\u00e3.<\/p>\n\n\n\n
H\u1ea7u h\u1ebft s\u1ee3i \u0111\u01b0\u1ee3c c\u1ea5u t\u1ea1o b\u1edfi nh\u1eefng ch\u1ea5t h\u1eefu c\u01a1, l\u00e0 ch\u1ea5t \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y trong t\u1ea5t c\u1ea3 c\u00e1c sinh v\u1eadt. Nhi\u1ec1u ch\u1ea5t h\u1eefu c\u01a1 c\u00f3 m\u1ed9t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1eb7c bi\u1ec7t. Nh\u1eefng ph\u00e2n t\u1eed c\u1ee7a ch\u00fang (l\u00e0 c\u00e1c nh\u00f3m nguy\u00ean t\u1eed) d\u00ednh li\u1ec1n nhau gi\u1ed1ng nh\u01b0 m\u1eaft x\u00edch. \u0110\u00e2y l\u00e0 s\u1ef1 k\u1ebft n\u1ed1i m\u1ed7i s\u1ee3i g\u1ed3m c\u00f3 h\u00e0ng tri\u1ec7u s\u1ee3i x\u00edch ph\u00e2n t\u1eed n\u1ed1i k\u1ebft v\u1edbi nhau b\u1eb1ng m\u1ed9t l\u1ef1c t\u1ef1 nhi\u00ean g\u1ecdi l\u00e0 l\u1ef1c li\u00ean k\u1ebft h\u00f3a h\u1ecdc. Nh\u1eefng s\u1ee3i kh\u00e1c nhau ch\u1ee9a m\u1ed9t s\u1ed1 lo\u1ea1i nguy\u00ean t\u1eed kh\u00e1c nhau trong nh\u00f3m ph\u00e2n t\u1eed c\u1ee7a ch\u00fang, v\u00e0 c\u00e1c nguy\u00ean t\u1eed c\u0169ng \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp kh\u00e1c h\u1eb3n.<\/p>\n\n\n\n
\u0110\u1ec3 t\u1ea1o n\u00ean s\u1ee3i t\u1ed5ng h\u1ee3p, c\u00e1c nh\u00e0 h\u00f3a h\u1ecdc l\u1ea5y nh\u1eefng nguy\u00ean t\u1eed carbon, hydro, oxy v\u00e0 c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c v\u00e0 t\u1ed5ng h\u1ee3p ch\u00fang \u0111\u1ec3 t\u1ea1o th\u00e0nh m\u1ed9t ch\u1ea5t m\u1edbi. Nguy\u00ean li\u1ec7u cho s\u1ef1 t\u1ed5ng h\u1ee3p l\u00e0 than d\u1ea7u, kh\u00f4ng kh\u00ed v\u00e0 n\u01b0\u1edbc.<\/p>\n\n\n\n
Nguy\u00ean t\u1eed t\u1eeb nh\u1eefng nguy\u00ean li\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c t\u1ed5ng h\u1ee3p v\u00e0 s\u1eafp x\u1ebfp th\u00e0nh nh\u1eefng s\u1ee3i ph\u00e2n t\u1eed d\u00e0i g\u1ecdi l\u00e0 s\u1ee3i polymer. N\u00f3i c\u00e1ch kh\u00e1c, s\u1ef1 k\u1ebft n\u1ed1i polymer \u0111\u01b0\u1ee3c c\u00e1c nh\u00e0 h\u00f3a h\u1ecdc t\u1ea1o n\u00ean ch\u1ee9 kh\u00f4ng ph\u1ea3i thi\u00ean nhi\u00ean.<\/p>\n\n\n\n
Ch\u1ea5t polymer n\u00e0y l\u00e0 m\u1ed9t ch\u1ea5t l\u1ecfng khi n\u00f3ng ch\u1ea3y ch\u00fang c\u00f3 th\u1ec3 \u0111\u1ed5 v\u00e0o khu\u00f4n \u0111\u1ec3 th\u00e0nh nh\u1eefng d\u1ee5ng c\u1ee5 b\u1eb1ng nh\u1ef1a c\u1ee9ng hay gi\u1ea5y b\u00f3ng \u0111\u1ec3 g\u00f3i \u0111\u1ed3, c\u00f3 khi k\u00e9o th\u00e0nh s\u1ee3i qua m\u1ed9t m\u00e1y k\u00e9o s\u1ee3i t\u1ed5ng h\u1ee3p cho ra s\u1ee3i r\u1ea5t nh\u1ecf ng\u01b0\u1eddi ta d\u00f9ng s\u1ee3i n\u00e0y d\u1ec7t th\u00e0nh v\u1ea3i.<\/p>\n\n\n\n
Trong t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i s\u1ee3i s\u1ea3n xu\u1ea5t h\u00e0ng n\u0103m, s\u1ee3i t\u1ed5ng h\u1ee3p chi\u1ebfm 1\/5 t\u1ed5ng s\u1ed1.<\/p>\n","protected":false},"excerpt":{"rendered":"
T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 9 – Arkady Leokum M\u1ed9t v\u00e0i lo\u1ea1i s\u1ee3i nh\u01b0 b\u00f4ng v\u1ea3i, len, l\u1ee5a, v\u1ea3i lanh, l\u00f4ng th\u00fa l\u00e0 s\u1ee3i t\u1ef1 nhi\u00ean, c\u00f3 th\u1ec3 do nh\u00e0 m\u00e1y ho\u1eb7c do th\u00fa v\u1eadt s\u1ea3n xu\u1ea5t ra. Nh\u1eefng lo\u1ea1i s\u1ee3i kh\u00e1c nh\u01b0 ryon, dacron, saran l\u00e0 nh\u1eefng […]<\/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":[15],"tags":[],"class_list":["post-15517","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15517","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=15517"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15517\/revisions"}],"predecessor-version":[{"id":15518,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/15517\/revisions\/15518"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=15517"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=15517"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=15517"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}