{"id":22481,"date":"2022-12-29T11:19:06","date_gmt":"2022-12-29T04:19:06","guid":{"rendered":"http:\/\/vafs.gov.vn\/vn\/?p=22481"},"modified":"2022-12-28T10:21:54","modified_gmt":"2022-12-28T03:21:54","slug":"hoi-dong-nghiem-thu-tong-ket-de-tai-tiem-nang-cap-bo-nghien-cuu-cong-nghe-tach-lignin-tu-dich-den-trong-san-xuat-bot-giay-va-su-dung-de-tao-keo-dan-go","status":"publish","type":"post","link":"https:\/\/vafs.gov.vn\/vn\/hoi-dong-nghiem-thu-tong-ket-de-tai-tiem-nang-cap-bo-nghien-cuu-cong-nghe-tach-lignin-tu-dich-den-trong-san-xuat-bot-giay-va-su-dung-de-tao-keo-dan-go\/","title":{"rendered":"H\u1ed9i \u0111\u1ed3ng nghi\u1ec7m thu t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i ti\u1ec1m n\u0103ng c\u1ea5p B\u1ed9: \u201cNghi\u00ean c\u1ee9u c\u00f4ng ngh\u1ec7 t\u00e1ch lignin t\u1eeb d\u1ecbch \u0111en trong s\u1ea3n xu\u1ea5t b\u1ed9t gi\u1ea5y v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o keo d\u00e1n g\u1ed7\u201d."},"content":{"rendered":"

Th\u1ef1c hi\u1ec7n Quy\u1ebft \u0111\u1ecbnh s\u1ed1: 533\/Q\u0110-KHLN-KH ng\u00e0y 23 th\u00e1ng 12 n\u0103m 2022 c\u1ee7a c\u1ee7a Gi\u00e1m \u0111\u1ed1c Vi\u1ec7n v\u1ec1 vi\u1ec7c Th\u00e0nh l\u1eadp H\u1ed9i \u0111\u1ed3ng Khoa h\u1ecdc C\u00f4ng ngh\u1ec7. Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam \u0111\u00e3 t\u1ed5 ch\u1ee9c h\u1ecdp H\u1ed9i \u0111\u1ed3ng nghi\u1ec7m thu t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i ti\u1ec1m n\u0103ng c\u1ea5p B\u1ed9: \u201cNghi\u00ean c\u1ee9u c\u00f4ng ngh\u1ec7 t\u00e1ch lignin t\u1eeb d\u1ecbch \u0111en trong s\u1ea3n xu\u1ea5t b\u1ed9t gi\u1ea5y v\u00e0 s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o keo d\u00e1n g\u1ed7\u201d. Ch\u1ee7 nhi\u1ec7m: ThS. Ho\u00e0ng V\u0103n Phong. \u0110\u01a1n v\u1ecb th\u1ef1c hi\u1ec7n: Vi\u1ec7n Nghi\u00ean c\u1ee9u C\u00f4ng nghi\u1ec7p r\u1eebng.<\/p>\n

\"\"<\/a><\/p>\n

M\u1ee5c ti\u00eau:<\/strong><\/p>\n

– X\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 t\u00e1ch lignin t\u1eeb d\u1ecbch \u0111en trong s\u1ea3n xu\u1ea5t b\u1ed9t gi\u1ea5y quy m\u00f4 ph\u00f2ng th\u00ed nghi\u1ec7m.<\/p>\n

– \u0110\u1ec1 xu\u1ea5t \u0111\u01b0\u1ee3c quy tr\u00ecnh c\u00f4ng ngh\u1ec7 t\u1ed5ng h\u1ee3p keo d\u00e1n g\u1ed7 lignin \u2013 phenol \u2013 formaldehyde ch\u1ecbu \u1ea9m quy m\u00f4 ph\u00f2ng th\u00ed nghi\u1ec7m<\/p>\n

N\u1ed9i dung:<\/strong><\/p>\n

N\u1ed9i dung 1:<\/em> <\/strong>Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 t\u00e1ch lignin t\u1eeb d\u1ecbch \u0111en b\u1eb1ng t\u00e1c nh\u00e2n axit H2<\/sub>SO4<\/sub> quy m\u00f4 ph\u00f2ng th\u00ed nghi\u1ec7m<\/p>\n

N\u1ed9i dung 2:<\/em> <\/strong>Nghi\u00ean c\u1ee9u x\u00e1c \u0111\u1ecbnh ch\u1ebf \u0111\u1ed9 t\u1ed5ng h\u1ee3p keo d\u00e1n g\u1ed7 lignin – phenol – formaldehyde (LPF) t\u1ea1o v\u00e1n d\u00e1n quy m\u00f4 ph\u00f2ng th\u00ed nghi\u1ec7m (1,5kg\/m\u1ebb)<\/p>\n

N\u1ed9i dung 3: \u00a0<\/em><\/strong>Nghi\u00ean c\u1ee9u th\u1eed nghi\u1ec7m t\u1ea1o v\u00e1n d\u00e1n s\u1eed d\u1ee5ng keo lignin-phenol-formaldehyde (LPF) \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng v\u00e1n d\u00e1n<\/p>\n

\"\"<\/a><\/p>\n

S\u1ea3n ph\u1ea9m c\u1ee7a \u0111\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u1ea1t \u0111\u01b0\u1ee3c<\/strong><\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 l\u1ef1a ch\u1ecdn \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 t\u00e1ch lignin l\u00e0 dung d\u1ecbch ax\u00edt sunfuric n\u1ed3ng \u0111\u1ed9 35%, Gi\u00e1 tr\u1ecb pH k\u1ebft t\u1ee7a = 4 v\u00e0 nhi\u1ec7t \u0111\u1ed9 k\u1ebft t\u1ee7a: 750<\/sup>C \u1edf h\u00e0m l\u01b0\u1ee3ng kh\u00f4 c\u1ee7a d\u1ecbch \u0111en 29,5% v\u1edbi t\u1ed1c \u0111\u1ed9 khu\u1ea5y 80 v\u00f2ng\/ph\u00fat.<\/p>\n

– \u0110\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 c\u00f4ng ngh\u1ec7 thu h\u1ed3i lignin v\u1edbi n\u0103ng su\u1ea5t 1.8kg\/m\u1ebb b\u1eb1ng thi\u1ebft b\u1ecb gia nhi\u1ec7t, thi\u1ebft b\u1ecb l\u1ecdc: Th\u1eddi gian duy tr\u00ec \u1edf pH = 4<\/strong> v\u00e0 nhi\u1ec7t \u0111\u1ed9 750<\/sup>C<\/strong> trong th\u1eddi gian \u03c4 = 45 ph\u00fat.<\/p>\n

– S\u1ea3n ph\u1ea9m lignin c\u00f3 h\u00e0m l\u01b0\u1ee3ng cho th\u1ea5p \u0111\u1ea3m b\u1ea3o cho lignin t\u1ed5ng h\u1ee3p keo d\u00e1n g\u1ed7<\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 nghi\u00ean c\u1ee9u \u0111\u01b0a ra \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ea5t l\u01b0\u1ee3ng keo c\u1ee5 th\u1ec3 nhi\u1ec7t \u0111\u1ed9 t\u1ed5ng h\u1ee3p keo l\u00e0 trong kho\u1ea3ng 85-900<\/sup>C<\/strong>, pH = 10.5<\/strong> v\u00e0 ph\u1ea7n tr\u0103m lignin thay th\u1ebf phenol l\u00e0 25%<\/strong><\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 ch\u1ecdn ra \u0111\u01b0\u1ee3c c\u00e1c th\u00f4ng s\u1ed1 \u00e9p cho ch\u1ea5t l\u01b0\u1ee3ng c\u01b0\u1eddng \u0111\u1ed9 d\u00e1n d\u00ednh t\u1ed1t nh\u1ea5t l\u00e0 nhi\u1ec7t \u0111\u1ed9 \u00e9p (T= 1300<\/sup>C),<\/strong> th\u1eddi gian \u00e9p (\u03c4 = 7<\/strong>) ph\u00fat v\u1edbi \u00e1p xu\u1ea5t \u00e9p c\u1ed1 \u0111\u1ecbnh (P = 1.1MPa<\/strong>)<\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u1ec1 xu\u1ea5t \u0111\u01b0\u1ee3c 01 Quy tr\u00ecnh c\u00f4ng ngh\u1ec7 t\u1ed5ng h\u1ee3p keo LPF th\u00f4ng qua ki\u1ec3m ch\u1ee9ng t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n c\u1ee7a keo nh\u01b0 h\u00e0m l\u01b0\u1ee3ng kh\u00f4, \u0111\u1ed9 nh\u1edbt v\u00e0 c\u00e1c t\u00ednh ch\u1ea5t v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng d\u00e1n d\u00ednh c\u1ee7a v\u00e1n d\u00e1n l\u00e0m c\u01a1 s\u1edf b\u01b0\u1edbc \u0111\u1ea7u cho c\u00e1c nghi\u00ean c\u1ee9u ti\u1ebfp theo, ho\u00e0n thi\u1ec7n c\u00f4ng ngh\u1ec7,\u00a0 t\u01b0 v\u1ea5n cho c\u00e1c c\u01a1 s\u1edf th\u1ef1c ti\u1ec5n s\u1ea3n xu\u1ea5t.<\/p>\n

– S\u1ea3n ph\u1ea9m keo lignin: \u00a0\u0110\u00e3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c 10 kg keo LPF:\u00a0 \u0110\u1ed9 pH: 10,52; \u0110\u1ed9 nh\u1edbt: 320mPas t\u1ea1i nhi\u1ec7t \u0111\u1ed9 250<\/sup>C;\u00a0 Th\u1eddi gian s\u1ed1ng c\u1ee7a keo:\u00a0 > 30 ng\u00e0y; H\u00e0m l\u01b0\u1ee3ng kh\u00f4: > 40%; h\u00e0m l\u01b0\u1ee3ng formaldehyde < 2mg\/100g<\/p>\n

– Thu h\u1ed3i lignin b\u1eb1ng ax\u00edt sunphuric t\u1eeb nh\u00e0 m\u00e1y b\u1ed9t gi\u1ea5y sunph\u00e1t v\u00e0 s\u1eed d\u1ee5ng t\u1ed5ng h\u1ee3p keo lignin phenol formaldehyde<\/p>\n

\"\"<\/a><\/p>\n

V\u1ec1 hi\u1ec7u qu\u1ea3 do nhi\u1ec7m v\u1ee5 mang l\u1ea1i<\/strong>:<\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 ho\u00e0n th\u00e0nh t\u1ed1t c\u00e1c m\u1ee5c ti\u00eau \u0111\u1eb7t ra, c\u00e1c k\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u c\u00f3 th\u1ec3 l\u00e0 ti\u1ec1n \u0111\u1ec1 cho c\u00e1c nghi\u00ean c\u1ee9u ti\u1ebfp theo, c\u00e1c s\u1ea3n ph\u1ea9m c\u1ee7a \u0111\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 th\u00f4ng qua c\u00e1c ti\u00eau chu\u1ea9n \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng, \u0111\u1ed9 tin c\u1eady c\u1ee5 th\u1ec3 c\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 sau:<\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 th\u00ed nghi\u1ec7m thu h\u1ed3i t\u1ea1o ra \u0111\u01b0\u1ee3c lignin t\u1eeb d\u1ecbch \u0111en nh\u00e0 m\u00e1y gi\u1ea5y<\/p>\n

– \u0110\u1ec1 t\u00e0i \u0111\u00e3 \u0111\u01b0a ra \u0111\u01b0\u1ee3c quy tr\u00ecnh t\u1ed5ng h\u1ee3p keo LPF \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c ch\u1ec9 ti\u00eau t\u00ednh ch\u1ea5t keo nh\u01b0 h\u00e0m l\u01b0\u1ee3ng kh\u00f4, \u0111\u1ed9 nh\u1edbt \u0111\u1ea3m b\u1ea3o cho s\u1eed d\u1ee5ng \u00e9p nhi\u1ec7t t\u1ea1o v\u00e1n d\u00e1n.<\/p>\n

–\u00a0 \u0110\u1ec1 t\u00e0i \u0111\u00e3 \u00e9p t\u1ea1o ra v\u00e1n d\u00e1n s\u1eed d\u1ee5ng keo LPF c\u00e1c s\u1ea3n ph\u1ea9m v\u00e1n d\u00e1n \u0111\u1ea3m b\u1ea3o c\u00e1c y\u00eau c\u1ea7u v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 d\u00e1n d\u00ednh s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch ch\u1ecbu \u1ea9m.<\/p>\n

–\u00a0 \u0110\u00e3 s\u1ea3n xu\u1ea5t \u0111\u01b0\u1ee3c 10 kg keo LPF.<\/p>\n","protected":false},"excerpt":{"rendered":"

Th\u1ef1c hi\u1ec7n Quy\u1ebft \u0111\u1ecbnh s\u1ed1: 533\/Q\u0110-KHLN-KH ng\u00e0y 23 th\u00e1ng 12 n\u0103m 2022 c\u1ee7a c\u1ee7a Gi\u00e1m \u0111\u1ed1c Vi\u1ec7n v\u1ec1 vi\u1ec7c Th\u00e0nh l\u1eadp H\u1ed9i \u0111\u1ed3ng Khoa h\u1ecdc C\u00f4ng ngh\u1ec7. Vi\u1ec7n Khoa h\u1ecdc L\u00e2m nghi\u1ec7p Vi\u1ec7t Nam \u0111\u00e3 t\u1ed5 ch\u1ee9c h\u1ecdp H\u1ed9i \u0111\u1ed3ng nghi\u1ec7m thu t\u1ed5ng k\u1ebft \u0111\u1ec1 t\u00e0i ti\u1ec1m n\u0103ng c\u1ea5p B\u1ed9: \u201cNghi\u00ean c\u1ee9u c\u00f4ng ngh\u1ec7 t\u00e1ch […]<\/p>\n","protected":false},"author":2,"featured_media":22484,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[11,72],"tags":[],"_links":{"self":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/22481"}],"collection":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/comments?post=22481"}],"version-history":[{"count":1,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/22481\/revisions"}],"predecessor-version":[{"id":22485,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/posts\/22481\/revisions\/22485"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media\/22484"}],"wp:attachment":[{"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/media?parent=22481"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/categories?post=22481"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vafs.gov.vn\/vn\/wp-json\/wp\/v2\/tags?post=22481"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}