{"id":679,"date":"2024-07-29T01:19:53","date_gmt":"2024-07-29T01:19:53","guid":{"rendered":"https:\/\/juyuans.com\/?p=679"},"modified":"2024-07-29T01:19:53","modified_gmt":"2024-07-29T01:19:53","slug":"lucel-pom-gb-325-nguyen-lieu-nhua","status":"publish","type":"post","link":"https:\/\/juyuans.com\/vi\/lucel-pom-gb-325-nguyen-lieu-nhua\/","title":{"rendered":"Nguy\u00ean li\u1ec7u nh\u1ef1a LUCEL POM GB-325"},"content":{"rendered":"

Polyoxymethylene (POM), c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 acetal ho\u1eb7c Delrin, l\u00e0 m\u1ed9t lo\u1ea1i nh\u1ef1a k\u1ef9 thu\u1eadt nhi\u1ec7t d\u1ebbo c\u00f3 m\u1eadt \u0111\u1ed9 cao, \u0111\u1ed9 k\u1ebft tinh cao \u0111\u01b0\u1ee3c tr\u00f9ng h\u1ee3p t\u1eeb formaldehyde v\u00e0 c\u00e1c nguy\u00ean li\u1ec7u th\u00f4 kh\u00e1c. V\u1eadt li\u1ec7u POM \u0111\u01b0\u1ee3c chia th\u00e0nh homopolymer (POM-H) v\u00e0 copolymer (POM-K), c\u1ea3 hai \u0111\u1ec1u c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd, c\u01a1 h\u1ecdc v\u00e0 h\u00f3a h\u1ecdc tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ma s\u00e1t.<\/span><\/p>\n

Polyme tinh th\u1ec3 m\u1eadt \u0111\u1ed9 cao n\u00e0y, kh\u00f4ng c\u00f3 chu\u1ed7i b\u00ean, c\u00f3 b\u1ec1 m\u1eb7t nh\u1eb5n v\u00e0 b\u00f3ng, c\u1ee9ng v\u00e0 \u0111\u1eb7c, v\u00e0 th\u01b0\u1eddng c\u00f3 m\u00e0u v\u00e0ng nh\u1ea1t ho\u1eb7c tr\u1eafng. POM c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e2u d\u00e0i trong ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 t\u1eeb -40\u00b0C \u0111\u1ebfn 100\u00b0C, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n v\u00e0 t\u1ef1 b\u00f4i tr\u01a1n v\u01b0\u1ee3t tr\u1ed9i. Ngo\u00e0i ra, kh\u1ea3 n\u0103ng ch\u1ed1ng d\u1ea7u v\u00e0 peroxide c\u1ee7a POM v\u01b0\u1ee3t tr\u1ed9i h\u01a1n h\u1ea7u h\u1ebft c\u00e1c lo\u1ea1i nh\u1ef1a k\u1ef9 thu\u1eadt. B\u1eb1ng c\u00e1ch th\u00eam ch\u1ea5t \u1ed5n \u0111\u1ecbnh tia c\u1ef1c t\u00edm (t\u00e1c nh\u00e2n UV), kh\u1ea3 n\u0103ng ch\u1ed1ng tia c\u1ef1c t\u00edm c\u1ee7a n\u00f3 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3.<\/span><\/p>\n

Trong s\u1ed1 c\u00e1c lo\u1ea1i kh\u00e1c nhau, POM GB-325 n\u1ed5i b\u1eadt v\u1edbi hi\u1ec7u su\u1ea5t \u0111\u00e1ng ch\u00fa \u00fd. \u1ede 23\u00b0C, \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a n\u00f3 l\u00e0 64 MPa, v\u1edbi h\u1ec7 s\u1ed1 ma s\u00e1t t\u0129nh v\u00e0 \u0111\u1ed9ng l\u1ea7n l\u01b0\u1ee3t l\u00e0 0,15 v\u00e0 0,21, v\u00e0 t\u1ed1c \u0111\u1ed9 gi\u00e3n d\u00e0i l\u00e0 10%. V\u1eadt li\u1ec7u n\u00e0y ho\u1ea1t \u0111\u1ed9ng xu\u1ea5t s\u1eafc trong th\u1eed nghi\u1ec7m m\u00e0i m\u00f2n Taber, v\u1edbi t\u1ed1c \u0111\u1ed9 m\u00e0i m\u00f2n ch\u1ec9 22 mg tr\u00ean 1000 chu k\u1ef3. \u1ede c\u00f9ng nhi\u1ec7t \u0111\u1ed9, POM GB-325 c\u00f3 m\u00f4 \u0111un u\u1ed1n l\u00e0 3900 MPa, \u0111\u1ed9 b\u1ec1n u\u1ed1n l\u00e0 98 MPa v\u00e0 \u0111\u1ed9 b\u1ec1n va \u0111\u1eadp Izod c\u00f3 kh\u00eda l\u00e0 35,71 kJ\/m\u00b2. Ngo\u00e0i ra, nhi\u1ec7t \u0111\u1ed9 bi\u1ebfn d\u1ea1ng nhi\u1ec7t c\u1ee7a n\u00f3, \u1edf tr\u1ea1ng th\u00e1i kh\u00f4ng \u1ee7, l\u00e0 165\u00b0C d\u01b0\u1edbi 0,45 MPa v\u00e0 150\u00b0C d\u01b0\u1edbi 1,8 MPa, v\u1edbi tr\u1ecdng l\u01b0\u1ee3ng ri\u00eang l\u00e0 1,59 g\/cm\u00b3. T\u1ef7 l\u1ec7 co ng\u00f3t theo h\u01b0\u1edbng d\u00f2ng ch\u1ea3y v\u00e0 h\u01b0\u1edbng vu\u00f4ng g\u00f3c l\u1ea7n l\u01b0\u1ee3t l\u00e0 1,6% v\u00e0 1,9%, v\u00e0 c\u00f3 \u0111\u1ed9 c\u1ee9ng Rockwell theo thang M l\u00e0 80.<\/span><\/p>\n

Nh\u1eefng \u0111\u1eb7c t\u00ednh tuy\u1ec7t v\u1eddi n\u00e0y l\u00e0m cho POM GB-325 ho\u1ea1t \u0111\u1ed9ng c\u1ef1c k\u1ef3 t\u1ed1t trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u00e1nh r\u0103ng, \u1ed5 tr\u1ee5c, r\u00f2ng r\u1ecdc v\u00e0 nhi\u1ec1u b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed kh\u00e1c. C\u00e1c \u0111\u1eb7c t\u00ednh v\u01b0\u1ee3t tr\u1ed9i c\u1ee7a POM \u0111\u1ea3m b\u1ea3o \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh c\u00f4ng nghi\u1ec7p v\u00e0 ch\u1ee9ng minh nh\u1eefng l\u1ee3i th\u1ebf \u0111\u1ed9c \u0111\u00e1o c\u1ee7a n\u00f3 trong nhi\u1ec1u \u1ee9ng d\u1ee5ng h\u00e0ng ng\u00e0y.<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
H\u00e0nh vi c\u01a1 h\u1ecdc<\/span><\/td>\nT\u00ecnh tr\u1ea1ng<\/span><\/td>\nTi\u00eau chu\u1ea9n<\/span><\/td>\nGi\u00e1 tr\u1ecb<\/span><\/td>\n\u0110\u01a1n v\u1ecb<\/span><\/td>\n<\/tr>\n
\u0110\u1ed9 b\u1ec1n k\u00e9o<\/span><\/td>\nNgh\u1ec9 23\u00b0C<\/span><\/td>\nASTM D638<\/span><\/td>\n64<\/span><\/td>\nMPa<\/span><\/td>\n<\/tr>\n
H\u1ec7 s\u1ed1 ma s\u00e1t<\/span><\/td>\nT\u0129nh<\/span><\/td>\nTi\u00eau chu\u1ea9n ASTMD3702<\/span><\/td>\n0.15<\/span><\/td>\n<\/td>\n<\/tr>\n
H\u1ec7 s\u1ed1 ma s\u00e1t<\/span><\/td>\nN\u0103ng \u0111\u1ed9ng<\/span><\/td>\nTi\u00eau chu\u1ea9n ASTMD3702<\/span><\/td>\n0.21<\/span><\/td>\n<\/td>\n<\/tr>\n
\u0110\u1ed9 gi\u00e3n d\u00e0i<\/span><\/td>\n23\u00b0C<\/span><\/td>\nASTM D638<\/span><\/td>\n10<\/span><\/td>\n%<\/span><\/td>\n<\/tr>\n
Tiber hao m\u00f2n<\/span><\/td>\n<\/td>\nTi\u00eau chu\u1ea9n ASTMD1044<\/span><\/td>\n22<\/span><\/td>\nmg\/1000cy<\/span><\/td>\n<\/tr>\n
M\u00f4 \u0111un u\u1ed1n<\/span><\/td>\n23\u00b0C<\/span><\/td>\nASTM D790<\/span><\/td>\n3900<\/span><\/td>\nMPa<\/span><\/td>\n<\/tr>\n
\u0110\u1ed9 b\u1ec1n u\u1ed1n<\/span><\/td>\n23\u00b0C<\/span><\/td>\nASTM D790<\/span><\/td>\n98<\/span><\/td>\nMPa<\/span><\/td>\n<\/tr>\n
T\u00e1c \u0111\u1ed9ng c\u1ee7a Izod Notch<\/span><\/td>\n<\/td>\nASTM D256<\/span><\/td>\n35.71<\/span><\/td>\nkJ\/m2<\/span><\/td>\n<\/tr>\n
T\u00e1c \u0111\u1ed9ng c\u1ee7a Izod Notch<\/span><\/td>\n23\u00b0C<\/span><\/td>\nASTM D256<\/span><\/td>\n4.08<\/span><\/td>\nkJ\/m2<\/span><\/td>\n<\/tr>\n
nhi\u1ec7t<\/span><\/td>\nT\u00ecnh tr\u1ea1ng<\/span><\/td>\nTi\u00eau chu\u1ea9n<\/span><\/td>\nGi\u00e1 tr\u1ecb<\/span><\/td>\n\u0110\u01a1n v\u1ecb<\/span><\/td>\n<\/tr>\n
HDT<\/span><\/td>\nKh\u00f4ng \u1ee7 0,45MPa<\/span><\/td>\nASTM D648<\/span><\/td>\n165<\/span><\/td>\n\u00b0C<\/span><\/td>\n<\/tr>\n
HDT<\/span><\/td>\n1.8MPa kh\u00f4ng \u0111\u01b0\u1ee3c \u1ee7<\/span><\/td>\nASTM D648<\/span><\/td>\n150<\/span><\/td>\n\u00b0C<\/span><\/td>\n<\/tr>\n
T\u00e0i s\u1ea3n v\u1eadt ch\u1ea5t<\/span><\/td>\nT\u00ecnh tr\u1ea1ng<\/span><\/td>\nTi\u00eau chu\u1ea9n<\/span><\/td>\nGi\u00e1 tr\u1ecb<\/span><\/td>\n\u0110\u01a1n v\u1ecb<\/span><\/td>\n<\/tr>\n
T\u1ec9 tr\u1ecdng<\/span><\/td>\n<\/td>\nASTM D792<\/span><\/td>\n1.59<\/span><\/td>\ng\/cm\u00b3<\/span><\/td>\n<\/tr>\n
co ng\u00f3t<\/span><\/td>\nCh\u1ea3y<\/span><\/td>\nTi\u00eau chu\u1ea9n ASTMD995<\/span><\/td>\n1.6<\/span><\/td>\n%<\/span><\/td>\n<\/tr>\n
co ng\u00f3t<\/span><\/td>\nxFlow<\/span><\/td>\nTi\u00eau chu\u1ea9n ASTMD995<\/span><\/td>\n1.9<\/span><\/td>\n%<\/span><\/td>\n<\/tr>\n
\u0111\u1ed9 c\u1ee9ng<\/span><\/td>\nT\u00ecnh tr\u1ea1ng<\/span><\/td>\nTi\u00eau chu\u1ea9n<\/span><\/td>\nGi\u00e1 tr\u1ecb<\/span><\/td>\n\u0110\u01a1n v\u1ecb<\/span><\/td>\n<\/tr>\n
\u0110\u1ed9 c\u1ee9ng Rockwell<\/span><\/td>\nM(T\u1ef7 l\u1ec7)<\/span><\/td>\nASTM D785<\/span><\/td>\n80<\/span><\/td>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\"POM<\/span><\/p>\n

\"POM<\/span><\/p>\n

 <\/p>\n

Nh\u1ea5p v\u00e0o \u0111\u00e2y \u0111\u1ec3 t\u1ea3i xu\u1ed1ng TDS cho LUCEL POM GB-525<\/a><\/span><\/p>","protected":false},"excerpt":{"rendered":"

Polyoxymethylene (POM), c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 acetal ho\u1eb7c Delrin, l\u00e0 m\u1ed9t lo\u1ea1i nh\u1ef1a k\u1ef9 thu\u1eadt nhi\u1ec7t d\u1ebbo c\u00f3 m\u1eadt \u0111\u1ed9 cao, \u0111\u1ed9 k\u1ebft tinh cao \u0111\u01b0\u1ee3c tr\u00f9ng h\u1ee3p t\u1eeb formaldehyde v\u00e0 c\u00e1c nguy\u00ean li\u1ec7u th\u00f4 kh\u00e1c. V\u1eadt li\u1ec7u POM \u0111\u01b0\u1ee3c chia th\u00e0nh homopolymer (POM-H) v\u00e0 copolymer (POM-K), c\u1ea3 hai \u0111\u1ec1u c\u00f3 c\u00e1c t\u00ednh ch\u1ea5t v\u1eadt l\u00fd, c\u01a1 h\u1ecdc v\u00e0 h\u00f3a h\u1ecdc tuy\u1ec7t v\u1eddi, \u0111\u1eb7c bi\u1ec7t l\u00e0 kh\u1ea3 n\u0103ng ch\u1ed1ng ma s\u00e1t.<\/p>","protected":false},"author":1,"featured_media":607,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[35],"class_list":["post-679","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-polyoxymethylene","tag-pom"],"jetpack_featured_media_url":"https:\/\/juyuans.com\/wp-content\/uploads\/2024\/06\/POM-19.jpg","_links":{"self":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/posts\/679","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/comments?post=679"}],"version-history":[{"count":0,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/posts\/679\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/media\/607"}],"wp:attachment":[{"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/media?parent=679"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/categories?post=679"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/juyuans.com\/vi\/wp-json\/wp\/v2\/tags?post=679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}