C\u00e1c lo\u1ea1i t\u00e3 l\u00f3t truy\u1ec1n th\u1ed1ng h\u1ec5 g\u1eb7p n\u01b0\u1edbc ti\u1ec3u th\u00ec b\u1ecb th\u1ea5m \u01b0\u1edbt l\u00e0m c\u00e1c b\u00e0 m\u1eb9 tr\u1ebb c\u1ea3m th\u1ea5y h\u1ebft s\u1ee9c phi\u1ec1n ph\u1ee9c khi ph\u1ea3i thay t\u00e3 l\u00f3t nhi\u1ec1u l\u1ea7n. C\u00f2n lo\u1ea1i s\u1ea3n ph\u1ea9m m\u1edbi “t\u00e3 l\u00f3t th\u1ea5m n\u01b0\u1edbc” c\u00f3 t\u00ednh h\u00fat n\u01b0\u1edbc r\u1ea5t m\u1ea1nh, m\u1ed7i ng\u00e0y ch\u1ec9 c\u1ea7n thay m\u1ed9t l\u1ea7n, n\u00ean l\u00e0m ng\u01b0\u1eddi ta c\u1ea3m th\u1ea5y h\u1ebft s\u1ee9c ti\u1ebft ki\u1ec7m s\u1ee9c l\u1ef1c, m\u00e0 l\u1ea1i b\u1ea3o \u0111\u1ea3m da d\u1ebb con m\u00ecnh \u0111\u01b0\u1ee3c kh\u00f4 s\u1ea1ch, n\u00ean h\u1ebft s\u1ee9c \u0111\u01b0\u1ee3c \u01b0a d\u00f9ng.<\/p>\n\n\n\n
V\u00ec sao “t\u00e3 l\u00f3t th\u1ea5m n\u01b0\u1edbc” l\u1ea1i kh\u00f4ng b\u1ecb \u01b0\u1edbt n\u01b0\u1edbc ti\u1ec3u.<\/p>\n\n\n\n
Ch\u00fang ta \u0111\u1ec1u bi\u1ebft khi th\u00eam n\u01b0\u1edbc v\u00e0o g\u1ea1o r\u1ed3i \u0111em n\u1ea5u ta s\u1ebd \u0111\u01b0\u1ee3c c\u01a1m, v\u00ec trong h\u1ea1t c\u01a1m c\u00f3 ch\u1ee9a nhi\u1ec1u n\u01b0\u1edbc nh\u01b0ng n\u01b0\u1edbc kh\u00f4ng h\u1ec1 ch\u1ea3y ra t\u1eeb h\u1ea1t c\u01a1m. B\u1ed9t m\u00ec nh\u00e0o v\u1edbi n\u01b0\u1edbc s\u1ebd th\u00e0nh b\u1ed9t m\u00ec \u01b0\u1edbt, m\u1ec1m. D\u00f9ng tay b\u00f3p m\u1ea1nh, nh\u00e0o n\u1eb7n b\u1ed9t m\u00ec \u01b0\u1edbt b\u1eb1ng b\u1ea5t k\u1ef3 c\u00e1ch n\u00e0o, ta c\u0169ng kh\u00f4ng h\u1ec1 th\u1ea5y n\u01b0\u1edbc ch\u1ea3y ra kh\u1ecfi b\u1ed9t m\u00ec \u01b0\u1edbt. Nh\u01b0 v\u1eady g\u1ea1o, b\u1ed9t m\u00ec l\u00e0 nh\u1eefng ch\u1ea5t c\u00f3 th\u00e0nh ph\u1ea7n ho\u00e1 h\u1ecdc l\u00e0 tinh b\u1ed9t, c\u00f3 t\u00ednh gi\u1eef n\u01b0\u1edbc r\u1ea5t m\u1ea1nh. Tinh b\u1ed9t l\u00e0 h\u1ee3p ch\u1ea5t cao ph\u00e2n t\u1eed gi\u1ed1ng nh\u01b0 m\u1ed9t d\u00e2y x\u00edch d\u00e0i. Trong ph\u00e2n t\u1eed l\u00e0 chu\u1ed7i x\u00edch d\u00e0i c\u00f3 nhi\u1ec1u ph\u1ea7n t\u1eed \u01b0a n\u01b0\u1edbc. V\u00ec v\u1eady c\u00e1c ph\u00e2n t\u1eed n\u01b0\u1edbc d\u1ec5 d\u00e0ng b\u1ecb c\u00e1c ph\u00e2n t\u1eed \u01b0a n\u01b0\u1edbc c\u1ee7a tinh b\u1ed9t h\u00fat m\u1ea1nh, b\u00e1m v\u00e0o ph\u00e2n t\u1eed l\u00e0 d\u00e2y x\u00edch d\u00e0i ch\u1ec9 l\u00e0m cho h\u1ea1t g\u1ea1o tr\u01b0\u01a1ng ra nh\u01b0ng v\u1eabn li\u1ec1n m\u1ed9t kh\u1ed1i.<\/p>\n\n\n\n
Trong c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u cao ph\u00e2n t\u1eed t\u1ed5ng h\u1ee3p c\u0169ng c\u00f3 nh\u1eefng lo\u1ea1i c\u00f3 t\u00ednh \u01b0a n\u01b0\u1edbc nh\u01b0 hi\u1ec7n t\u01b0\u1ee3ng v\u1eeba n\u00eau tr\u00ean. V\u00ed d\u1ee5 polyvinyl alcol (PVA), polyhy\u0111roxy etylen\u2026 n\u1ebfu \u0111em c\u00e1c cao ph\u00e2n t\u1eed n\u00e0y qu\u00e9t l\u00ean v\u1ea3i th\u00ec s\u1ebd ch\u1ebf t\u1ea1o \u0111\u01b0\u1ee3c lo\u1ea1i v\u1ea3i kh\u00f4ng th\u1ea5m \u0111\u1eabm n\u01b0\u1edbc ti\u1ec3u. N\u1ebfu trong lo\u1ea1i v\u1ea3i kh\u00f4ng th\u1ea5m \u01b0\u1edbt \u0111\u01b0\u1ee3c qu\u00e9t lo\u1ea1i h\u1ed7n h\u1ee3p cao ph\u00e2n t\u1eed: tinh b\u1ed9t – polyhy\u0111roxy etylen s\u1ebd k\u1ebft n\u1ed1i v\u1edbi nhau th\u00e0nh chu\u1ed7i ph\u00e2n t\u1eed d\u00e0i h\u01a1n. Theo l\u00fd thuy\u1ebft th\u00ec lo\u1ea1i v\u1eadt li\u1ec7u n\u00e0y c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 l\u01b0\u1ee3ng n\u01b0\u1edbc l\u1edbn, l\u00e0m t\u0103ng kh\u1ed1i l\u01b0\u1ee3ng h\u01a1n 460 l\u1ea7n so v\u1edbi kh\u1ed1i l\u01b0\u1ee3ng ban \u0111\u1ea7u v\u00e0 l\u01b0\u1ee3ng n\u01b0\u1edbc h\u1ea5p th\u1ee5 g\u1ea5p 70 l\u1ea7n kh\u1ed1i l\u01b0\u1ee3ng b\u1ea3n th\u00e2n v\u1eadt li\u1ec7u. Theo t\u00ednh to\u00e1n c\u1ee9 50 g v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 \u0111\u1ebfn 23 kg n\u01b0\u1edbc ho\u1eb7c c\u00f3 th\u1ec3 h\u1ea5p th\u1ee5 3,5 kg n\u01b0\u1edbc mu\u1ed1i sinh l\u00fd. V\u1ea3i kh\u00f4ng th\u1ea5m n\u01b0\u1edbc ti\u1ec3u c\u00f2n c\u00f3 \u01b0u \u0111i\u1ec3m l\u00e0 khi ch\u1ecbu \u00e1p l\u1ef1c kh\u00f4ng l\u1edbn l\u1eafm th\u00ec n\u01b0\u1edbc h\u1ea5p th\u1ee5 s\u1ebd kh\u00f4ng ch\u1ea3y ra \u0111\u01b0\u1ee3c. \u0110\u01b0\u01a1ng nhi\u00ean \u0111\u00f3 ch\u1ec9 l\u00e0 nh\u1eefng s\u1ed1 li\u1ec7u d\u1ef1a v\u00e0o c\u00e1c th\u00ed nghi\u1ec7m trong ph\u00f2ng th\u00ed nghi\u1ec7m. Trong th\u1ef1c t\u1ebf ch\u1ec9 c\u1ea7n h\u1ea5p th\u1ee5 1kg n\u01b0\u1edbc ti\u1ec3u l\u00e0 \u0111\u1ee7. L\u00fac b\u1ea5y gi\u1edd v\u1ea3i kh\u00f4ng th\u1ea5m n\u01b0\u1edbc ti\u1ec3u kh\u00f4ng c\u1ea7n ph\u1ea3i c\u00f3 l\u01b0\u1ee3ng qu\u00e1 l\u1edbn v\u1eadt li\u1ec7u h\u00fat n\u01b0\u1edbc n\u00ean kh\u00f4ng l\u00e0m th\u1ec3 t\u00edch v\u1eadt li\u1ec7u thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3. V\u00ec v\u1eady g\u1ecdi ch\u00fang l\u00e0 “kh\u00f4ng th\u1ea5m” n\u01b0\u1edbc ti\u1ec3u c\u0169ng kh\u00f4ng ph\u1ea3i l\u00e0 qu\u00e1 \u0111\u00e1ng.<\/p>\n\n\n\n
V\u1eadt li\u1ec7u h\u00fat gi\u1eef n\u01b0\u1edbc kh\u00f4ng ch\u1ec9 d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o “v\u1ea3i kh\u00f4ng th\u1ea5m n\u01b0\u1edbc ti\u1ec3u” m\u00e0 c\u00f2n d\u00f9ng \u0111\u1ec3 ch\u1ebf t\u1ea1o nhi\u1ec1u v\u1eadt li\u1ec7u v\u1ec7 sinh y h\u1ecdc c\u00f9ng nhi\u1ec1u lo\u1ea1i s\u1ea3n ph\u1ea9m d\u00f9ng cho nh\u00e0 b\u1ebfp.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Kh\u00f4ng b\u1ecb \u01b0\u1edbt n\u01b0\u1edbc ti\u1ec3u; V\u1eadt li\u1ec7u h\u00fat gi\u1eef n\u01b0\u1edbc.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
C\u00e1c lo\u1ea1i t\u00e3 l\u00f3t truy\u1ec1n th\u1ed1ng h\u1ec5 g\u1eb7p n\u01b0\u1edbc ti\u1ec3u th\u00ec b\u1ecb th\u1ea5m \u01b0\u1edbt l\u00e0m c\u00e1c b\u00e0 m\u1eb9 tr\u1ebb c\u1ea3m th\u1ea5y h\u1ebft s\u1ee9c phi\u1ec1n ph\u1ee9c khi ph\u1ea3i thay t\u00e3 l\u00f3t nhi\u1ec1u l\u1ea7n. C\u00f2n lo\u1ea1i s\u1ea3n ph\u1ea9m m\u1edbi “t\u00e3 l\u00f3t th\u1ea5m n\u01b0\u1edbc” c\u00f3 t\u00ednh h\u00fat n\u01b0\u1edbc r\u1ea5t m\u1ea1nh, m\u1ed7i ng\u00e0y ch\u1ec9 c\u1ea7n thay m\u1ed9t l\u1ea7n, n\u00ean […]<\/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-8022","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\/8022","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=8022"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8022\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8022"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8022"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8022"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}