Ng\u00e0y nay keo d\u00e1n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t h\u1ecd l\u1edbn c\u00f3 nhi\u1ec1u th\u00e0nh vi\u00ean: T\u1eeb c\u00e1c s\u1ea3n ph\u1ea9m ng\u01b0\u1eddi ta \u0111\u00e3 bi\u1ebft t\u1eeb th\u1eddi xa x\u01b0a nh\u01b0 keo d\u00e1n b\u1eb1ng nh\u1ef1a c\u00e2y, keo x\u01b0\u01a1ng, keo ti\u1ebft l\u1ee3n\u2026 c\u00f2n c\u00f3 nhi\u1ec1u th\u00e0nh vi\u00ean m\u1edbi kh\u00e1c. Trong s\u1ed1 c\u00e1c lo\u1ea1i keo m\u1edbi, lo\u1ea1i keo c\u00f3 ph\u1ea1m vi s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i \u0111\u01b0\u1ee3c m\u1ecdi ng\u01b0\u1eddi \u01b0a th\u00edch c\u00f3 lo\u1ea1i keo kh\u00f4ng kh\u00f4.<\/p>\n\n\n\n
Theo t\u00ean g\u1ecdi “keo d\u00e1n kh\u00f4ng kh\u00f4” r\u00f5 r\u00e0ng \u0111\u00f3 l\u00e0 ch\u1ea5t keo kh\u00f4ng b\u1ecb kh\u00f4. Khi \u0111\u01b0a cho b\u1ea1n m\u1ed9t b\u00ecnh keo d\u00e1n kh\u00f4ng kh\u00f4, ch\u1eafc b\u1ea1n s\u1ebd ngh\u0129 r\u1eb1ng \u0111\u00e3 l\u00e0 keo tuy c\u00f3 d\u00ednh b\u00e1m nh\u01b0ng kh\u00f4ng r\u1eafn \u0111\u01b0\u1ee3c, kh\u00f4ng \u0111\u1ecbnh h\u00ecnh \u0111\u01b0\u1ee3c v\u1eadt c\u1ea7n d\u00e1n, th\u00ec ngo\u00e0i vi\u1ec7c l\u00e0m gi\u1ea5y b\u1eaft ru\u1ed3i ra, c\u00f2n l\u00e0m \u0111\u01b0\u1ee3c vi\u1ec7c g\u00ec n\u1eefa.<\/p>\n\n\n\n
V\u00e0o n\u0103m 1964, m\u1ed9t nh\u00e0 ho\u00e1 h\u1ecdc \u1edf C\u00f4ng ty 3M c\u1ee7a M\u1ef9 \u0111\u00e3 nghi\u00ean c\u1ee9u ph\u1ed1i ch\u1ebf c\u00e1c lo\u1ea1i keo d\u00e1n, \u00f4ng ta \u0111\u00e3 t\u00ecm th\u1ea5y m\u1ed9t lo\u1ea1i c\u00f3 t\u00ednh d\u00ednh b\u00e1m r\u1ea5t t\u1ed1t nh\u01b0ng r\u1ea5t kh\u00f3 \u0111\u00f3ng r\u1eafn. Khi \u0111em d\u00f9ng th\u00ec th\u1ea5y c\u00f3 \u0111\u1ed9 d\u00ednh r\u1ea5t t\u1ed1t, nh\u01b0ng r\u1ea5t kh\u00f3 kh\u00f4, sau khi d\u00e1n xong, sau m\u1ed9t th\u1eddi gian d\u00e0i v\u1eabn c\u00f3 th\u1ec3 b\u00f3c ra d\u1ec5 d\u00e0ng. Lo\u1ea1i keo d\u00e1n kh\u00f4ng c\u00f3 l\u1ef1c b\u00e1m ch\u1eafc th\u00ec c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng l\u1ed9t b\u1ecf th\u00ec li\u1ec7u c\u00f2n d\u00f9ng \u0111\u01b0\u1ee3c v\u00e0o vi\u1ec7c g\u00ec? Cho d\u00f9 nh\u00e0 ph\u00e1t minh \u0111\u00e3 h\u1ebft s\u1ee9c ch\u00e0o m\u1eddi, nh\u01b0ng tr\u1ea3i qua th\u1eddi gian 9 n\u0103m sau \u0111\u00f3 c\u0169ng kh\u00f4ng ai \u0111o\u00e1i ho\u00e0i \u0111\u1ebfn. M\u00e3i \u0111\u1ebfn n\u0103m 1973, C\u00f4ng ty 3M \u0111\u00e3 th\u00e0nh l\u1eadp m\u1ed9t nh\u00f3m nghi\u00ean c\u1ee9u khai th\u00e1c m\u1eb7t h\u00e0ng m\u1edbi, lo\u1ea1i keo d\u00e1n kh\u00f4ng kh\u00f4 m\u1edbi d\u1ea7n d\u1ea7n t\u1eebng b\u01b0\u1edbc \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u. H\u1ecd \u0111\u00e3 d\u00f9ng lo\u1ea1i keo d\u00e1n n\u00e0y ph\u1ee7 m\u1ed9t l\u1edbp m\u1ecfng l\u00ean m\u1eb7t sau c\u1ee7a c\u00e1c t\u1edd nh\u00e3n hi\u1ec7u h\u00e0ng ho\u00e1, sau \u0111\u00f3 l\u1ea1i ph\u1ee7 v\u00e0o m\u1eb7t c\u00f3 keo d\u00e1n m\u1ed9t t\u1edd gi\u1ea5y n\u1ebfn m\u1ecfng. \u0110\u00e2y l\u00e0 c\u00e1c t\u1edd nh\u00e3n hi\u1ec7u h\u00e0ng ho\u00e1 c\u00f3 keo d\u00e1n kh\u00f4ng kh\u00f4 l\u1ea7n \u0111\u1ea7u ti\u00ean tr\u00ean th\u1ebf gi\u1edbi. Khi s\u1eed d\u1ee5ng nh\u00e3n hi\u1ec7u, ng\u01b0\u1eddi ta ch\u1ec9 c\u1ea7n l\u1ed9t b\u1ecf t\u1edd gi\u1ea5y n\u1ebfn l\u00e0 c\u00f3 th\u1ec3 d\u00e1n v\u00e0o b\u1ea5t k\u1ef3 ch\u1ed7 n\u00e0o. Sau \u0111\u00f3 ng\u01b0\u1eddi ta ti\u1ebfp t\u1ee5c nghi\u00ean c\u1ee9u d\u00f9ng keo d\u00e1n kh\u00f4ng kh\u00f4 l\u00e0m \u0111\u1ed3 cho ch\u01a1i cho tr\u1ebb em. D\u1ea7n d\u1ea7n ng\u01b0\u1eddi ta \u0111\u00e3 t\u00ecm c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c \u0111i\u1ec3m m\u1ea1nh c\u1ee7a keo d\u00e1n kh\u00f4ng kh\u00f4 v\u00e0o c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau. C\u00e1c s\u1ea3n ph\u1ea9m d\u00f9ng keo d\u00e1n kh\u00f4ng kh\u00f4 ng\u00e0y c\u00e0ng nhi\u1ec1u, l\u01b0\u1ee3ng keo d\u00e1n kh\u00f4ng kh\u00f4 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u0169ng ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n\n\n\n
Ng\u00e0y nay \u0111\u1ec3 h\u00e0n k\u00edn mi\u1ec7ng c\u00e1c h\u1ed9p gi\u1ea5y, t\u00fai gi\u1ea5y ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c b\u0103ng keo d\u00e1n kh\u00f4ng kh\u00f4. Khi c\u1ea7n t\u1ea1m th\u1eddi k\u1ebft th\u00fac nhanh vi\u1ec7c bao g\u00f3i m\u1ed9t v\u1eadt g\u00ec \u0111\u00f3, ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng b\u0103ng keo d\u00e1n kh\u00f4ng kh\u00f4. Trong ph\u00f2ng th\u00ed nghi\u1ec7m, ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng b\u0103ng keo d\u00e1n kh\u00f4ng kh\u00f4 \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh nh\u00e3n chai l\u1ecd. Trong c\u00e1c c\u1eeda hi\u1ec7u ng\u01b0\u1eddi ta hay d\u00f9ng b\u0103ng keo d\u00e1n kh\u00f4ng kh\u00f4 \u0111\u1ec3 \u0111\u00ednh c\u00e1c nh\u00e3n hi\u1ec7u h\u00e0ng ho\u00e1. Trong c\u00e1c x\u01b0\u1edfng m\u1ea1, trong khi phun s\u01a1n, phun c\u00e1t ng\u01b0\u1eddi ta th\u01b0\u1eddng d\u00f9ng b\u0103ng keo trong ph\u1ee7 keo d\u00e1n kh\u00f4ng kh\u00f4 \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00e1c ph\u1ea7n kh\u00f4ng \u0111\u1ed9ng ch\u1ea1m \u0111\u1ebfn. Khi c\u1ea7n b\u1ea3o v\u1ec7 b\u1ec1 m\u1eb7t s\u00e1ng b\u00f3ng c\u1ee7a c\u00e1c t\u1ea5m kim lo\u1ea1i, b\u1ecbt k\u00edn c\u00e1c b\u00ecnh \u0111\u1ef1ng kim lo\u1ea1i, ngay c\u1ea3 khi c\u1ea7n b\u1ea3o v\u1ec7 c\u00e1c t\u1eadp s\u00e1ch, c\u00e1c t\u1eadp v\u1edf b\u00e0i t\u1eadp c\u1ee7a c\u00e1c b\u1ea1n h\u1ecdc sinh<\/a> nh\u1ecf, ng\u01b0\u1eddi ta c\u0169ng hay d\u00f9ng b\u0103ng keo trong c\u00f3 ph\u1ee7 keo d\u00e1n kh\u00f4ng kh\u00f4. Trong c\u00e1c b\u1ec7nh vi\u1ec7n ng\u01b0\u1eddi ta hay d\u00f9ng c\u00e1c mi\u1ebfng cao d\u00e1n \u0111\u1ec3 tr\u1ecb b\u1ec7nh \u0111au nh\u1ee9c, ch\u1ed1ng vi\u00eam, ng\u01b0\u1eddi ta c\u0169ng th\u01b0\u1eddng ch\u1ecdn lo\u1ea1i b\u0103ng keo d\u00e1n kh\u00f4ng kh\u00f4. Tr\u00ean v\u00f5 \u0111\u00e0i, t\u1ea1i c\u00e1c cung th\u1ec3 d\u1ee5c th\u1ec3 thao, ng\u01b0\u1eddi ta c\u0169ng hay d\u00f9ng keo d\u00e1n kh\u00f4ng kh\u00f4 \u0111\u1ec3 ph\u1ed1i ch\u1ebf c\u00e1c v\u1eadt li\u1ec7u v\u1ebd c\u00e1c \u0111\u01b0\u1eddng v\u1ebd tr\u00ean \u0111\u1ea5t\u2026 Th\u1eadt kh\u00f4ng th\u1ec3 k\u1ec3 h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng c\u1ee7a keo d\u00e1n kh\u00f4ng kh\u00f4.<\/p>\n\n\n\n Ch\u1ea5t keo k\u1ebft d\u00ednh d\u00f9ng l\u00e0m b\u0103ng keo d\u00e1n kh\u00f4ng kh\u00f4 c\u00f3 nhi\u1ec1u lo\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c ph\u1ed1i ch\u1ebf t\u1eeb cao su v\u00e0 este acrilic. Nguy\u00ean li\u1ec7u \u0111\u1ec3 ch\u1ebf t\u1ea1o b\u0103ng keo th\u01b0\u1eddng b\u1eb1ng gi\u1ea5y, m\u00e0ng nh\u1ef1a m\u1ecfng, v\u1eadt li\u1ec7u s\u1ee3i d\u1ec7t (v\u1ea3i). Th\u1eadm ch\u00ed ng\u01b0\u1eddi ta c\u0169ng d\u00f9ng \u0111\u1ed3ng l\u00e1, nh\u00f4m l\u00e1, c\u0169ng nh\u01b0 c\u00e1c m\u00e0ng m\u1ecfng ch\u1ebf t\u1ea1o t\u1eeb cao su thi\u00ean nhi\u00ean l\u00e0m nguy\u00ean li\u1ec7u.<\/p>\n\n\n\n T\u1eeb kho\u00e1: Keo d\u00e1n kh\u00f4ng kh\u00f4; Ch\u1ea5t k\u1ebft d\u00ednh.<\/p>\n\n\n\n <\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":" Ng\u00e0y nay keo d\u00e1n \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t h\u1ecd l\u1edbn c\u00f3 nhi\u1ec1u th\u00e0nh vi\u00ean: T\u1eeb c\u00e1c s\u1ea3n ph\u1ea9m ng\u01b0\u1eddi ta \u0111\u00e3 bi\u1ebft t\u1eeb th\u1eddi xa x\u01b0a nh\u01b0 keo d\u00e1n b\u1eb1ng nh\u1ef1a c\u00e2y, keo x\u01b0\u01a1ng, keo ti\u1ebft l\u1ee3n\u2026 c\u00f2n c\u00f3 nhi\u1ec1u th\u00e0nh vi\u00ean m\u1edbi kh\u00e1c. Trong s\u1ed1 c\u00e1c lo\u1ea1i keo m\u1edbi, lo\u1ea1i keo c\u00f3 ph\u1ea1m vi […]<\/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-7868","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\/7868","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=7868"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7868\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}