B\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 m\u1ecdi \u0111i\u1ec1u v\u1ec1 gi\u1ea5y ch\u01b0a?<\/p>\n\n\n\n
Ti\u1ec1n th\u00e2n c\u1ee7a gi\u1ea5y l\u00e0 g\u1ed7. C\u00e1c \u0111o\u1ea1n g\u1ed7 \u0111\u01b0a v\u00e0o x\u01b0\u1edfng gi\u1ea5y s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00e1y nghi\u1ec1n, qua giai \u0111o\u1ea1n n\u1ea5u, \u0111\u00e1nh nh\u00e3o, t\u1ea9y t\u1eafng l\u00e0m th\u00e0nh b\u1ed9t gi\u1ea5y. Sau \u0111\u00f3 qua m\u00e1y xeo, \u00e9p gia nhi\u1ec7t s\u1ea5y kh\u00f4 cu\u1ed1i c\u00f9ng ta \u0111\u01b0\u1ee3c t\u1edd gi\u1ea5y tr\u1eafng.<\/p>\n\n\n\n
Tuy gi\u1ea5y kh\u00f4ng ph\u1ea3i l\u00e0 v\u1eadt s\u1ed1ng nh\u01b0ng c\u0169ng b\u1ecb gi\u00e0. \u0110\u1ec3 l\u00e2u nh\u01b0 \u1edf c\u00e1c lo\u1ea1i s\u00e1ch b\u00e1o c\u0169 d\u1ea7n d\u1ea7n s\u1ebd b\u1ecb v\u00e0ng. C\u00f3 nh\u1eefng t\u1edd gi\u1ea5y b\u1ecb nh\u0169n \u0111i, ch\u1ec9 c\u1ea7n l\u1eadt qua, tr\u1edf l\u1ea1i m\u1ea5y l\u1ea7n l\u00e0 b\u1ecb r\u00e1ch n\u00e1t. V\u00ec sao v\u1eady?<\/p>\n\n\n\n
Sau khi g\u1ed7 bi\u1ebfn th\u00e0nh t\u1edd gi\u1ea5y, c\u00e1c s\u1ee3i xenluloza “\u0111\u00e3 \u0111\u01b0\u1ee3c y\u00ean ch\u1ed7”, gi\u1ea5y c\u00f3 \u0111\u1ed9 dai \u0111\u1ec1u d\u1ef1a v\u00e0o \u0111\u1ed9 b\u1ec1n c\u1ee7a s\u1ee3i xenluloza.<\/p>\n\n\n\n
Khi \u0111em gi\u1ea5y in b\u00e1o, in s\u00e1ch, oxy c\u1ee7a kh\u00f4ng kh\u00ed c\u00f3 th\u1ec3 t\u00e1c d\u1ee5ng d\u1ea7n d\u1ea7n v\u1edbi s\u1ee3i xenluloza, c\u00e1c s\u1ee3i xenluloza sau khi t\u00e1c d\u1ee5ng v\u1edbi oxy s\u1ebd d\u1ea7n d\u1ea7n b\u1ecb v\u00e0ng. Gi\u1ea5y c\u00f2n c\u00f3 m\u1ed9t lo\u1ea1i k\u1ebb th\u00f9 kh\u00f4ng th\u1ec3 truy b\u1eaft \u0111\u01b0\u1ee3c \u0111\u00f3 l\u00e0 \u00e1nh s\u00e1ng; \u00e1nh s\u00e1ng t\u00e1c d\u1ee5ng v\u1edbi s\u1ee3i xenluloza d\u01b0\u1edbi d\u1ea1ng c\u00e1c ph\u1ea3n \u1ee9ng quang ho\u00e1 c\u00f3 th\u1ec3 l\u00e0m cho gi\u1ea5y \u0111\u01b0\u1ee3c t\u1ea9y tr\u1eafng quay v\u1ec1 tr\u1ea1ng th\u00e1i v\u1ed1n c\u00f3 l\u00e0 m\u00e0u v\u00e0ng. V\u00ec th\u1ebf n\u00ean khi b\u1ea3o qu\u1ea3n l\u00e2u, s\u00e1ch b\u00e1o s\u1ebd b\u1ecb v\u00e0ng.<\/p>\n\n\n\n
V\u00ec v\u1eady tr\u00ean c\u00e1c t\u1ee7 s\u00e1ch \u1edf th\u01b0 vi\u1ec7n, th\u01b0\u1eddng ng\u01b0\u1eddi ta c\u00f3 l\u1eafp k\u00ednh th\u1ee7y tinh m\u00e0u. C\u00e1c tia s\u00e1ng \u0111\u1ecf, da cam, v\u00e0ng b\u1ecb c\u00e1c lo\u1ea1i th\u1ee7y tinh c\u00f9ng m\u00e0u h\u1ea5p th\u1ee5 c\u0169ng nh\u01b0 g\u00e2y ph\u1ea3n x\u1ea1 c\u00e1c ph\u1ea7n \u00e1nh s\u00e1ng kh\u00e1c. Nh\u1edd \u0111\u00f3 c\u00f3 th\u1ec3 gi\u1ea3m nh\u1eb9 t\u00e1c d\u1ee5ng c\u1ee7a \u00e1nh s\u00e1ng \u0111\u1ed1i v\u1edbi gi\u1ea5y.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Gi\u1ea5y; S\u1ee3i xenluloza.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
B\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 m\u1ecdi \u0111i\u1ec1u v\u1ec1 gi\u1ea5y ch\u01b0a? Ti\u1ec1n th\u00e2n c\u1ee7a gi\u1ea5y l\u00e0 g\u1ed7. C\u00e1c \u0111o\u1ea1n g\u1ed7 \u0111\u01b0a v\u00e0o x\u01b0\u1edfng gi\u1ea5y s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o m\u00e1y nghi\u1ec1n, qua giai \u0111o\u1ea1n n\u1ea5u, \u0111\u00e1nh nh\u00e3o, t\u1ea9y t\u1eafng l\u00e0m th\u00e0nh b\u1ed9t gi\u1ea5y. Sau \u0111\u00f3 qua m\u00e1y xeo, \u00e9p gia nhi\u1ec7t s\u1ea5y kh\u00f4 cu\u1ed1i c\u00f9ng ta \u0111\u01b0\u1ee3c t\u1edd […]<\/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-8110","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\/8110","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=8110"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/8110\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=8110"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=8110"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=8110"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}