Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, nh\u1ef1a bao b\u00ec c\u1ee7a Trung Qu\u1ed1c l\u00e0 kho\u1ea3ng 4 tri\u1ec7u t\u1ea5n, trong \u0111\u00f3 bao b\u00ec nh\u1ef1a d\u00f9ng m\u1ed9t l\u1ea7n kh\u00f3 t\u00e1i ch\u1ebf chi\u1ebfm kho\u1ea3ng 30%, v\u00e0 ch\u1ea5t th\u1ea3i bao b\u00ec nh\u1ef1a h\u00e0ng n\u0103m l\u00e0 kho\u1ea3ng 1,2 tri\u1ec7u t\u1ea5n; m\u00e0ng nh\u1ef1a h\u01a1n 400.000 t\u1ea5n, do m\u1ecfng (8\u03bcm tr\u1edf xu\u1ed1ng), sau khi s\u1eed d\u1ee5ng b\u1ecb v\u1ee1 v\u1ee5n trong \u0111\u1ea5t tr\u1ed3ng tr\u1ecdt v\u00e0 tr\u1ed9n v\u1edbi m\u1ed9t l\u01b0\u1ee3ng l\u1edbn c\u00e1t, r\u1ea5t kh\u00f3 t\u00e1i ch\u1ebf; l\u01b0\u1ee3ng \u0111\u1ed3 l\u1eb7t v\u1eb7t d\u00f9ng m\u1ed9t l\u1ea7n h\u00e0ng ng\u00e0y kh\u00f3 t\u00e1i ch\u1ebf v\u00e0 v\u1eadt t\u01b0 y t\u1ebf kh\u00f4ng ph\u00f9 h\u1ee3p \u0111\u1ec3 t\u00e1i ch\u1ebf l\u00e0 kho\u1ea3ng 400.000 t\u1ea5n.<\/p>\n
Trong nh\u1eefng n\u0103m g\u1ea7n \u0111\u00e2y, nh\u1ef1a c\u00f3 th\u1ec3 ph\u00e2n h\u1ee7y sinh h\u1ecdc \u0111\u01b0\u1ee3c \u01b0a chu\u1ed9ng nh\u1ea5t. Theo ngu\u1ed3n nguy\u00ean li\u1ec7u, nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh nh\u1ef1a g\u1ed1c d\u1ea7u m\u1ecf v\u00e0 nh\u1ef1a sinh h\u1ecdc. Ch\u1ea5t d\u1ebbo ph\u00e2n h\u1ee7y t\u1eeb d\u1ea7u m\u1ecf ch\u1ee7 y\u1ebfu bao g\u1ed3m: polybutylene succinate (PBS), polyadipate \/ butylene terephthalate (PBAT), polyglycolic acid (PGA), polycaprolactone (PCL), v.v.; Ch\u1ea5t d\u1ebbo ph\u00e2n h\u1ee7y d\u1ef1a tr\u00ean sinh h\u1ecdc ch\u1ee7 y\u1ebfu bao g\u1ed3m: axit polylactic (PLA), tinh b\u1ed9t, xenluloza, v.v.<\/p>\n
C\u00f3 t\u00ednh \u0111\u1ebfn c\u00e1c y\u1ebfu t\u1ed1 nh\u01b0 kh\u1ea3 n\u0103ng ph\u00e2n h\u1ee7y v\u1eadt li\u1ec7u v\u00e0 gi\u00e1 th\u00e0nh, c\u00e1c lo\u1ea1i nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc hi\u1ec7n nay tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u01b0\u1eddng ch\u1ecdn tinh b\u1ed9t, xenlulo, … l\u00e0m ch\u1ea5t \u0111\u1ed9n. H\u1ed7n h\u1ee3p tinh b\u1ed9t v\u00e0 v\u1eadt li\u1ec7u polyme c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t th\u00e0nh v\u1eadt li\u1ec7u ph\u00e2n h\u1ee7y. N\u00f3i chung, tinh b\u1ed9t ho\u1eb7c c\u00e1c d\u1eabn xu\u1ea5t c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c th\u00eam v\u00e0o l\u00e0m ch\u1ea5t ph\u1ee5 gia v\u00e0o polyme t\u1ed5ng h\u1ee3p \u0111\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n h\u1ee7y sinh h\u1ecdc c\u1ee7a polyme t\u1ed5ng h\u1ee3p. Khi v\u1eadt li\u1ec7u b\u1ecb ph\u00e2n hu\u1ef7, polyme x\u1ed1p c\u00f2n l\u1ea1i do s\u1ef1 ph\u00e2n hu\u1ef7 c\u1ee7a tinh b\u1ed9t d\u1ec5 x\u1ea3y ra c\u00e1c ph\u1ea3n \u1ee9ng ph\u00e2n hu\u1ef7 ti\u1ebfp theo nh\u01b0 qu\u00e1 tr\u00ecnh oxy ho\u00e1. Tuy nhi\u00ean, tinh b\u1ed9t, xenlulo v\u00e0 nh\u1ef1a c\u00f3 t\u00ednh t\u01b0\u01a1ng h\u1ee3p k\u00e9m, kh\u00f4ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 cao, gi\u00e1 th\u00e0nh cao n\u00ean kh\u00f4ng th\u00edch h\u1ee3p \u0111\u1ec3 tr\u00e1m quy m\u00f4 l\u1edbn.<\/p>\n
B\u1ed9t kho\u00e1ng phi kim lo\u1ea1i nh\u01b0 b\u1ed9t talc v\u00e0 canxi cacbonat, gi\u00e1 r\u1ebb, th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, \u0111\u1ee7 nguy\u00ean li\u1ec7u th\u00f4, \u0111\u1ed9 m\u1ecbn cao, \u0111\u1ed9 tr\u1eafng t\u1ed1t, d\u1ec5 ph\u1ed1i m\u00e0u, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 c\u1ee9ng c\u1ee7a s\u1ea3n ph\u1ea9m nh\u1ef1a v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t d\u1ebbo Hi\u1ec7u su\u1ea5t x\u1eed l\u00fd, v.v.<\/p>\n
B\u1ed9t talc<\/strong><\/p>\n Vi\u1ec7c b\u1ed5 sung b\u1ed9t talc v\u00e0o ch\u1ea5t d\u1ebbo ph\u00e2n h\u1ee7y sinh h\u1ecdc c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 c\u1ee9ng, nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng nhi\u1ec7t, \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 c\u1ee9ng b\u1ec1 m\u1eb7t, v.v.; \u0110\u1ed3ng th\u1eddi, b\u1ed9t talc si\u00eau m\u1ecbn c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ch\u1ea5t t\u1ea1o m\u1ea7m v\u00f4 c\u01a1 cho axit polylactic (PLA), th\u00eam m\u1ed9t l\u01b0\u1ee3ng th\u00edch h\u1ee3p b\u1ed9t talc si\u00eau m\u1ecbn c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111\u1ed9 k\u1ebft tinh v\u00e0 t\u1ef7 l\u1ec7 k\u1ebft tinh c\u1ee7a axit polylactic, v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a n\u00f3 .<\/p>\n Talc c\u00f3 ba ch\u1ee9c n\u0103ng trong vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh axit polylactic:<\/p>\n 1. Gi\u1ea3m chi ph\u00ed: Ph\u01b0\u01a1ng ph\u00e1p chu\u1ea9n b\u1ecb v\u1eadt li\u1ec7u h\u1ed7n h\u1ee3p axit polylactic ch\u1ee9a \u0111\u1ea7y talc cung c\u1ea5p c\u00f4ng ngh\u1ec7 v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u ch\u1ebf v\u1eadt li\u1ec7u h\u1ed7n h\u1ee3p axit polylactic ch\u1ecbu nhi\u1ec7t v\u1edbi h\u00ecnh th\u1ee9c \u0111\u1eb9p, \u0111\u1ed9 c\u1ee9ng t\u1ed1t, chu k\u1ef3 \u0111\u00fac s\u1ea3n ph\u1ea9m ng\u1eafn, tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9 v\u00e0 gi\u00e1 th\u00e0nh th\u1ea5p.<\/p>\n 2. C\u1ea3i thi\u1ec7n s\u1ee9c m\u1ea1nh: b\u1ed9t talc t\u1ef1 nhi\u00ean \u0111\u01b0\u1ee3c pha tr\u1ed9n tan ch\u1ea3y, v\u00e0 v\u1eadt li\u1ec7u composite l\u00e0 v\u1eadt li\u1ec7u ph\u00e2n h\u1ee7y sinh h\u1ecdc ho\u00e0n to\u00e0n; n\u00f3 c\u00f3 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc tuy\u1ec7t v\u1eddi v\u00e0 \u0111\u1ed9 b\u1ec1n k\u00e9o c\u00f3 th\u1ec3 \u0111\u1ea1t 50 ~ 70MPa.<\/p>\n 3. C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t: Axit polylactic c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t t\u1ed1t h\u01a1n do s\u1ef1 k\u1ebft tinh c\u1ee7a ch\u00ednh n\u00f3 v\u00e0 s\u1ef1 th\u00fac \u0111\u1ea9y s\u1ef1 k\u1ebft tinh c\u1ee7a ch\u1ea5t t\u1ea1o m\u1ea7m talc.<\/p>\n Canxi cacbonat<\/strong><\/p>\n Canxi cacbonat ch\u1ee9a \u0111\u1ea7y nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc, c\u00f3 th\u1ec3 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh xu\u1ed1ng c\u1ea5p c\u1ee7a nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc. \u0110\u1ed3ng th\u1eddi, canxi cacbonat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u1ef1c ti\u1ebfp b\u1edfi m\u1ed9t s\u1ed1 vi sinh v\u1eadt dinh d\u01b0\u1ee1ng v\u00f4 c\u01a1 l\u00e0m ngu\u1ed3n cacbon. Axit h\u1eefu c\u01a1 v\u00e0 vi khu\u1ea9n nitrat h\u00f3a v\u00e0 sunfua do vi sinh v\u1eadt t\u1ea1o ra trong \u0111\u1ea5t C\u1ea3 axit nitric v\u00e0 axit sunfuric do vi khu\u1ea9n t\u1ea1o ra \u0111\u1ec1u c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n h\u01a1n n\u1eefa kh\u1ea3 n\u0103ng h\u00f2a tan c\u1ee7a canxi cacbonat.<\/p>\n Vai tr\u00f2 c\u1ee7a canxi cacbonat trong nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc:<\/p>\n 1. Th\u00fac \u0111\u1ea9y s\u1ef1 ph\u00e2n h\u1ee7y: C\u00e1c h\u1ea1t canxi cacbonat l\u00e0m t\u0103ng kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c ph\u00e2n t\u1eed nh\u1ef1a, gi\u1ea3m l\u1ef1c c\u1ee7a c\u00e1c chu\u1ed7i polyme, c\u1ea3n tr\u1edf s\u1ef1 t\u00e1i li\u00ean k\u1ebft ch\u00e9o c\u1ee7a c\u00e1c g\u1ed1c t\u1ef1 do \u0111\u1ea1i ph\u00e2n t\u1eed, th\u00fac \u0111\u1ea9y s\u1ef1 c\u1eaft \u0111\u1ee9t chu\u1ed7i g\u1ed1c t\u1ef1 do g\u00e2y ra b\u1edfi s\u1ef1 ph\u00e2n h\u1ee7y quang h\u1ecdc v\u00e0 \u0111\u1ea9y nhanh qu\u00e1 tr\u00ecnh ph\u00e2n h\u1ee7y sinh h\u1ecdc c\u1ee7a s\u1ef1 tho\u00e1i h\u00f3a nh\u1ef1a.<\/p>\n 2. D\u1ec5 b\u1ecb ph\u00e2n h\u1ee7y: Khi b\u1ecb ch\u00f4n v\u00f9i trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt, canxi cacbonat c\u00f3 th\u1ec3 h\u00f2a tan v\u1ec1 m\u1eb7t h\u00f3a h\u1ecdc, v\u00e0 n\u00f3 \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 vi sinh v\u1eadt dinh d\u01b0\u1ee1ng v\u00f4 c\u01a1 tr\u1ef1c ti\u1ebfp s\u1eed d\u1ee5ng l\u00e0m ngu\u1ed3n cacbon.<\/p>\n 3. Gi\u1ea3m \u0111\u1ed9 nh\u1edbt v\u00e0 c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng: Canxi cacbonat sau khi x\u1eed l\u00fd b\u1ec1 m\u1eb7t l\u00e0m t\u0103ng \u0111\u1ed9 nh\u1edbt c\u1ee7a nh\u1ef1a b\u1ecb ph\u00e2n h\u1ee7y, c\u1ea3i thi\u1ec7n t\u00ednh l\u01b0u \u0111\u1ed9ng c\u1ee7a v\u1eadt li\u1ec7u v\u00e0 gi\u1ea3m ti\u00eau th\u1ee5 n\u0103ng l\u01b0\u1ee3ng.<\/p>\n C\u00e1c s\u1ea3n ph\u1ea9m nh\u1ef1a kh\u00f4ng ph\u00e2n h\u1ee7y d\u00f9ng m\u1ed9t l\u1ea7n truy\u1ec1n th\u1ed1ng \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong giao h\u00e0ng th\u1ef1c ph\u1ea9m, th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed v\u00e0 c\u00e1c ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c, nh\u01b0ng qu\u00e1 tr\u00ecnh x\u1eed l\u00fd sau \u0111\u00f3 ph\u1ee9c t\u1ea1p h\u01a1n, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a ch\u00fang. Do \u0111\u00f3, nh\u1eefng y\u00eau c\u1ea7u cao h\u01a1n \u0111\u01b0\u1ee3c \u0111\u1eb7t ra \u0111\u1ed1i v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u1ed5i m\u1edbi c\u00f4ng ngh\u1ec7 s\u1ea3n xu\u1ea5t v\u00e0 ch\u1ebf bi\u1ebfn nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc. Trong nghi\u00ean c\u1ee9u t\u01b0\u01a1ng lai, theo nhu c\u1ea7u c\u1ee7a th\u1ecb tr\u01b0\u1eddng ph\u00e2n h\u1ee7y sinh h\u1ecdc, ch\u00fang t\u00f4i s\u1ebd \u0111i s\u00e2u nghi\u00ean c\u1ee9u vi\u1ec7c \u1ee9ng d\u1ee5ng c\u00e1c lo\u1ea1i b\u1ed9t phi kim lo\u1ea1i v\u00f4 c\u01a1 ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee5c \u0111\u00edch c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u00e2n h\u1ee7y c\u1ee7a nh\u1ef1a ph\u00e2n h\u1ee7y sinh h\u1ecdc v\u00e0 g\u00f3p ph\u1ea7n th\u1ef1c hi\u1ec7n m\u1ed9t m\u00f4i tr\u01b0\u1eddng xanh v\u00e0 ph\u00e1t tri\u1ec3n b\u1ec1n v\u1eefng m\u00f4i tr\u01b0\u1eddng th\u00e2n thi\u1ec7n.<\/p>\n","protected":false},"excerpt":{"rendered":" B\u1ed9t kho\u00e1ng phi kim lo\u1ea1i nh\u01b0 b\u1ed9t talc v\u00e0 canxi cacbonat, gi\u00e1 r\u1ebb, th\u00e2n thi\u1ec7n v\u1edbi m\u00f4i tr\u01b0\u1eddng, \u0111\u1ee7 nguy\u00ean li\u1ec7u th\u00f4, \u0111\u1ed9 m\u1ecbn cao, \u0111\u1ed9 tr\u1eafng t\u1ed1t, d\u1ec5 ph\u1ed1i m\u00e0u, c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9, \u0111\u1ed9 c\u1ee9ng c\u1ee7a s\u1ea3n ph\u1ea9m nh\u1ef1a v\u00e0 c\u1ea3i thi\u1ec7n ch\u1ea5t d\u1ebbo Hi\u1ec7u su\u1ea5t x\u1eed l\u00fd, v.v.<\/p>\n","protected":false},"author":6,"featured_media":108674,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[428],"tags":[],"class_list":["post-108699","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc-cong-ty"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/108699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/comments?post=108699"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/posts\/108699\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media\/108674"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/media?parent=108699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/categories?post=108699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/vi\/wp-json\/wp\/v2\/tags?post=108699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}