{"id":15869,"date":"2026-03-10T18:38:17","date_gmt":"2026-03-10T10:38:17","guid":{"rendered":"https:\/\/rysilicone.com\/?p=15869"},"modified":"2026-04-07T11:01:27","modified_gmt":"2026-04-07T03:01:27","slug":"the-sticky-silicone-phenomenon-polymer-degradation-vs-plasticizer-migration","status":"publish","type":"post","link":"https:\/\/rysilicone.com\/vi\/the-sticky-silicone-phenomenon-polymer-degradation-vs-plasticizer-migration\/","title":{"rendered":"Hi\u1ec7n t\u01b0\u1ee3ng silicon d\u00ednh: S\u1ef1 ph\u00e2n h\u1ee7y polymer so v\u1edbi s\u1ef1 di chuy\u1ec3n ch\u1ea5t h\u00f3a d\u1ebbo"},"content":{"rendered":"

Hi\u1ec7n t\u01b0\u1ee3ng d\u00ednh nh\u1edbt tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn b\u1eb1ng silicon l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng xuy\u00ean t\u00e1i di\u1ec5n. B\u1ea1n t\u1ea1o h\u00ecnh c\u00e1c b\u1ed9 ph\u1eadn m\u1ed9t c\u00e1ch c\u1ea9n th\u1eadn. Ch\u00fang ra l\u00f2 m\u1ecbn m\u00e0ng v\u00e0 kh\u00f4 r\u00e1o. M\u1ecdi th\u1ee9 tr\u00f4ng c\u00f3 v\u1ebb t\u1ed1t. Nh\u01b0ng m\u1ed9t th\u00e1ng sau, kh\u00e1ch h\u00e0ng ph\u00e0n n\u00e0n. C\u00e1c m\u1ed1i n\u1ed1i b\u1ecb nh\u1eddn. Tay c\u1ea7m d\u00ednh v\u00e0o ng\u00f3n tay. \u0110\u1ed3 g\u1eb7m n\u01b0\u1edbt cho b\u00e9 b\u1ecb tr\u01b0\u1ee3t kh\u1ecfi khay.<\/p>\n\n\n\n

Trong l\u0129nh v\u1ef1c thi\u1ebft b\u1ecb y t\u1ebf, s\u1ea3n ph\u1ea9m cho em b\u00e9<\/a>, \u0110\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m nh\u01b0 \u0111\u1ed3 gia d\u1ee5ng cao c\u1ea5p, \u0111i\u1ec1u n\u00e0y kh\u00f4ng ch\u1ec9 g\u00e2y kh\u00f3 ch\u1ecbu. N\u00f3 l\u00e0m gi\u00e1n \u0111o\u1ea1n vi\u1ec7c v\u1eadn chuy\u1ec3n. N\u00f3 b\u1eaft \u0111\u1ea7u ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng. \u0110\u00f4i khi c\u1ea3 l\u00f4 h\u00e0ng b\u1ecb gi\u1eef l\u1ea1i. \u0110i\u1ec1u t\u1ed3i t\u1ec7 nh\u1ea5t r\u1ea5t \u0111\u01a1n gi\u1ea3n: v\u1eadt li\u1ec7u s\u1ed1 l\u01b0\u1ee3ng l\u1edbn th\u01b0\u1eddng v\u01b0\u1ee3t qua t\u1ea5t c\u1ea3 c\u00e1c b\u00e0i ki\u1ec3m tra \u0111\u1ed9 b\u1ec1n. Ch\u1ec9 c\u00f3 b\u1ec1 m\u1eb7t l\u00e0 c\u00f3 v\u1ea5n \u0111\u1ec1.<\/p>\n\n\n\n

Ch\u00fang t\u00f4i \u0111\u00e3 g\u1eb7p nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p nh\u01b0 v\u1eady. C\u00f3 hai nguy\u00ean nh\u00e2n ch\u00ednh. M\u1ed9t l\u00e0 do m\u1ea1ng l\u01b0\u1edbi silicon b\u1ecb h\u01b0 h\u1ea1i nghi\u00eam tr\u1ecdng. Hai l\u00e0 do c\u00e1c ph\u00e2n t\u1eed nh\u1ecf di chuy\u1ec3n l\u00ean b\u1ec1 m\u1eb7t v\u00e0 t\u1ea1o th\u00e0nh m\u1ed9t l\u1edbp m\u00e0ng. H\u00e3y nhanh ch\u00f3ng x\u00e1c \u0111\u1ecbnh nguy\u00ean nh\u00e2n n\u00e0o g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y. \u0110i\u1ec1u \u0111\u00f3 s\u1ebd ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 ti\u1ec1n b\u1ea1c.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

S\u1ef1 thi\u1ebfu tinh t\u1ebf th\u1ef1c s\u1ef1 g\u00e2y ra nh\u1eefng t\u1ed5n th\u1ea5t g\u00ec trong th\u1ef1c t\u1ebf?<\/h2>\n\n\n\n

M\u1ed9t mi\u1ebfng \u0111\u1ec7m y t\u1ebf d\u00ednh c\u00f3 th\u1ec3 v\u1eabn k\u00edn ho\u00e0n h\u1ea3o trong th\u1eed nghi\u1ec7m tr\u00ean b\u00e0n th\u00ed nghi\u1ec7m, nh\u01b0ng n\u1ebfu y t\u00e1 ho\u1eb7c b\u1ec7nh nh\u00e2n nh\u1eadn th\u1ea5y \u0111\u1ed9 d\u00ednh, s\u1ef1 tin t\u01b0\u1edfng s\u1ebd nhanh ch\u00f3ng gi\u1ea3m xu\u1ed1ng. T\u01b0\u01a1ng t\u1ef1 v\u1edbi n\u00fam v\u00fa gi\u1ea3 b\u1eb1ng silicon ho\u1eb7c t\u1ea5m l\u00f3t n\u01b0\u1edbng, ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng cho r\u1eb1ng ch\u00fang \u0111ang b\u1ecb ph\u00e2n h\u1ee7y ho\u1eb7c r\u00f2 r\u1ec9 ch\u1ea5t g\u00ec \u0111\u00f3.<\/p>\n\n\n\n

Trong c\u00e1c l\u0129nh v\u1ef1c \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 nh\u1eefng r\u1eafc r\u1ed1i v\u1ec1 th\u1ee7 t\u1ee5c gi\u1ea5y t\u1edd, c\u1ea3nh b\u00e1o t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, ho\u1eb7c th\u1eadm ch\u00ed t\u1ec7 h\u01a1n. Ch\u00fang t\u00f4i \u0111\u00e3 ch\u1ee9ng ki\u1ebfn c\u00e1c th\u1ecfa thu\u1eadn cung c\u1ea5p nhi\u1ec1u n\u0103m b\u1ecb t\u1ea1m d\u1eebng do c\u00e1c b\u00e1o c\u00e1o v\u1ec1 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t g\u00e2y d\u1ecb \u1ee9ng l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, ngay c\u1ea3 khi c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m b\u00ean th\u1ee9 ba \u0111\u00e3 x\u00e1c nh\u1eadn ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m \u0111\u1ea1t ti\u00eau chu\u1ea9n. Chi ph\u00ed \u1ea9n th\u01b0\u1eddng cao h\u01a1n: s\u1ed1 gi\u1edd l\u00e0m vi\u1ec7c c\u1ee7a k\u1ef9 s\u01b0 d\u00e0nh cho c\u00e1c cu\u1ed9c h\u1ecdp t\u00ecm nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5, l\u1ea5y m\u1eabu ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng b\u1ed5 sung, th\u1eed nghi\u1ec7m c\u00f4ng th\u1ee9c l\u1ea1i v\u00e0 s\u1ef1 x\u00f3i m\u00f2n d\u1ea7n d\u1ea7n l\u00f2ng tin c\u1ee7a kh\u00e1ch h\u00e0ng khi h\u1ecd b\u1eaft \u0111\u1ea7u t\u00ecm ki\u1ebfm c\u00e1c s\u1ea3n ph\u1ea9m thay th\u1ebf.<\/p>\n\n\n\n

Khi m\u1ea1ng l\u01b0\u1edbi polymer b\u1ecb ph\u00e1 v\u1ee1<\/h2>\n\n\n\n

\u0110\u00e2y l\u00e0 tr\u01b0\u1eddng h\u1ee3p kh\u00f3 kh\u1eafc ph\u1ee5c h\u01a1n v\u00ec th\u00e0nh ph\u1ea7n h\u00f3a h\u1ecdc th\u1ef1c s\u1ef1 \u0111\u00e3 thay \u0111\u1ed5i.<\/p>\n\n\n\n

N\u00f3i x\u1ea5u sau l\u01b0ng v\u00e0 s\u1ef1 ph\u00e2n h\u1ee7y polymer<\/h3>\n\n\n\n

N\u1ebfu b\u1ea1n gi\u1eef m\u1ed9t chi ti\u1ebft \u1edf nhi\u1ec7t \u0111\u1ed9 220\u2013250 \u00b0C qu\u00e1 l\u00e2u ho\u1eb7c n\u1ebfu \u0111\u1ed9 pH thay \u0111\u1ed5i trong qu\u00e1 tr\u00ecnh l\u00e0m s\u1ea1ch ho\u1eb7c h\u1ea5p ti\u1ec7t tr\u00f9ng b\u1eb1ng h\u01a1i n\u01b0\u1edbc, chu\u1ed7i Si-O s\u1ebd b\u1eaft \u0111\u1ea7u b\u1ecb t\u00e1ch ra t\u1eeb c\u00e1c \u0111\u1ea7u ph\u1ea3n \u1ee9ng. \u0110i\u1ec1u \u0111\u00f3 gi\u1ea3i ph\u00f3ng c\u00e1c siloxan v\u00f2ng (D4 v\u00e0 D5 th\u01b0\u1eddng l\u00e0 nh\u1eefng ch\u1ea5t g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y). Ch\u00fang \u0111\u1ee7 d\u1ec5 bay h\u01a1i \u0111\u1ec3 nhanh ch\u00f3ng bay l\u00ean b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ec3 l\u1ea1i m\u1ed9t l\u1edbp d\u1ea7u. Ch\u00fang t\u00f4i th\u01b0\u1eddng th\u1ea5y hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y nh\u1ea5t \u1edf nh\u1eefng m\u1eb7t c\u1eaft d\u00e0y, n\u01a1i nhi\u1ec7t \u0111\u1ed9 ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ec1u, ho\u1eb7c khi ai \u0111\u00f3 r\u00fat ng\u1eafn th\u1eddi gian l\u00e0m ngu\u1ed9i tr\u01b0\u1edbc khi th\u00e1o khu\u00f4n v\u00e0 nhi\u1ec7t l\u01b0\u1ee3ng c\u00f2n l\u1ea1i khi\u1ebfn ph\u1ea3n \u1ee9ng ti\u1ebfp di\u1ec5n qua \u0111\u00eam.<\/p>\n\n\n\n

S\u1ef1 t\u1ea5n c\u00f4ng oxy h\u00f3a do ti\u1ebfp x\u00fac nhi\u1ec7t l\u00e2u d\u00e0i<\/h3>\n\n\n\n

C\u00e1c nh\u00f3m metyl b\u1ecb oxy h\u00f3a khi silicon n\u1eb1m \u1edf nhi\u1ec7t \u0111\u1ed9 tr\u00ean 200 \u00b0C trong kh\u00f4ng kh\u00ed trong nhi\u1ec1u gi\u1edd ho\u1eb7c nhi\u1ec1u ng\u00e0y. M\u1eadt \u0111\u1ed9 li\u00ean k\u1ebft ngang gi\u1ea3m g\u1ea7n b\u1ec1 m\u1eb7t, v\u1eadt li\u1ec7u tr\u1edf n\u00ean gi\u1ed1ng nh\u1ef1a h\u01a1n v\u00e0 xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng d\u00ednh. B\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y \u0111i\u1ec1u n\u00e0y \u1edf gio\u0103ng l\u00f2 n\u01b0\u1edbng, \u1ed1ng d\u1eabn kh\u00ed t\u0103ng \u00e1p ho\u1eb7c b\u1ea5t k\u1ef3 b\u1ed9 ph\u1eadn n\u00e0o ho\u1ea1t \u0111\u1ed9ng g\u1ea7n ngu\u1ed3n nhi\u1ec7t li\u00ean t\u1ee5c. Th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed5i m\u00e0u v\u00e0ng nh\u1ea1t ho\u1eb7c n\u00e2u nh\u1ea1t, \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean silicon \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1eb1ng peroxide.<\/p>\n\n\n\n

\u0110\u1ed9 \u1ea9m v\u00e0 tia UV c\u00f9ng t\u00e1c \u0111\u1ed9ng<\/h3>\n\n\n\n

\u0110\u1ed9 \u1ea9m l\u00e0m th\u1ee7y ph\u00e2n t\u1eeb t\u1eeb c\u00e1c li\u00ean k\u1ebft Si-O tr\u00ean b\u1ec1 m\u1eb7t, l\u00e0m \u0111\u1ea3o ng\u01b0\u1ee3c m\u1ed9t ph\u1ea7n qu\u00e1 tr\u00ecnh \u0111\u00f3ng r\u1eafn. Tia UV b\u1ed5 sung c\u00e1c g\u1ed1c t\u1ef1 do l\u00e0m \u0111\u1ee9t c\u00e1c chu\u1ed7i nhanh h\u01a1n. C\u00e1c b\u1ed9 ph\u1eadn \u0111\u1ec3 d\u01b0\u1edbi \u00e1nh n\u1eafng tr\u1ef1c ti\u1ebfp, \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n trong kho \u1ea9m \u01b0\u1edbt ho\u1eb7c v\u1eadn chuy\u1ec3n qua c\u00e1c v\u00f9ng kh\u00ed h\u1eadu n\u00f3ng m\u00e0 kh\u00f4ng c\u00f3 l\u1edbp b\u1ea3o v\u1ec7 s\u1ebd b\u1ecb \u1ea3nh h\u01b0\u1edfng nhanh nh\u1ea5t\u2014\u0111\u00f4i khi tr\u1edf n\u00ean d\u00ednh nh\u1edbt ch\u1ec9 trong v\u00e0i th\u00e1ng.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

C\u00e1c v\u1ee5 \u00e1n li\u00ean quan \u0111\u1ebfn di c\u01b0 \u2013 Th\u01b0\u1eddng th\u00ec th\u1ee7 ph\u1ea1m th\u1ef1c s\u1ef1 m\u1edbi l\u00e0 ng\u01b0\u1eddi g\u00e2y ra.<\/h2>\n\n\n\n

Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p thu h\u1ed3i s\u1ea3n ph\u1ea9m m\u00e0 ch\u00fang t\u00f4i \u0111\u00e3 x\u1eed l\u00fd, l\u1edbp polymer v\u1eabn c\u00f2n nguy\u00ean v\u1eb9n. V\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf c\u00e1c ch\u1ea5t di \u0111\u1ed9ng n\u1ed5i l\u00ean b\u1ec1 m\u1eb7t ho\u1eb7c b\u1ecb h\u00fat v\u00e0o b\u00ean trong.<\/p>\n\n\n\n

C\u00e1c siloxan ch\u01b0a ph\u1ea3n \u1ee9ng c\u00f2n s\u00f3t l\u1ea1i<\/h3>\n\n\n\n

Th\u1eadm ch\u00ed t\u1ed1t b\u1ea1ch kim ch\u1eefa b\u1ec7nh<\/a> \u0110\u1ec3 l\u1ea1i c\u00e1c h\u1ee3p ch\u1ea5t v\u00f2ng ho\u1eb7c chu\u1ed7i ng\u1eafn n\u1ebfu t\u1ef7 l\u1ec7 pha tr\u1ed9n, t\u1ef7 l\u1ec7 ch\u1ea5t x\u00fac t\u00e1c ho\u1eb7c n\u1ed3ng \u0111\u1ed9 ch\u1ea5t \u1ee9c ch\u1ebf kh\u00f4ng ch\u00ednh x\u00e1c. C\u00e1c ch\u1ea5t n\u00e0y khu\u1ebfch t\u00e1n ra ngo\u00e0i trong nhi\u1ec1u tu\u1ea7n, \u0111\u1eb7c bi\u1ec7t khi nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng t\u0103ng l\u00ean tr\u00ean 20\u201325 \u00b0C. Ch\u00fang t\u00f4i t\u1eebng c\u00f3 m\u1ed9t l\u00f4 s\u1ea3n xu\u1ea5t v\u00f2ng \u0111eo tay m\u1ec1m b\u1ecb d\u00ednh \u1edf h\u00e0ng ngh\u00ecn chi\u1ebfc v\u00ec l\u01b0\u1ee3ng peroxide b\u1ecb thi\u1ebfu kho\u1ea3ng 12 %. Tr\u00f4ng ho\u00e0n h\u1ea3o \u1edf kh\u00e2u ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng, nh\u01b0ng l\u1ea1i b\u1ecb d\u00ednh trong kho c\u1ee7a kh\u00e1ch h\u00e0ng.<\/p>\n\n\n\n

Ch\u1ea5t h\u00f3a d\u1ebbo ng\u1ea5m v\u00e0o do ti\u1ebfp x\u00fac<\/h3>\n\n\n\n

Silicone h\u00fat c\u00e1c phthalate t\u1eeb khay PVC, v\u1ec9 \u0111\u00f3ng g\u00f3i, nh\u00e3n ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n TPE g\u1ea7n \u0111\u00f3 nh\u01b0 m\u1ed9t mi\u1ebfng b\u1ecdt bi\u1ec3n. C\u00e1c este l\u00e0m ph\u1ed3ng b\u1ec1 m\u1eb7t, l\u00e0m m\u1ec1m n\u00f3 v\u00e0 \u0111\u1ec3 l\u1ea1i m\u1ed9t l\u1edbp d\u00ednh dai d\u1eb3ng. Sau m\u1ed9t th\u1eed nghi\u1ec7m b\u1ea3o qu\u1ea3n kh\u00f4ng t\u1ed1t, khi c\u00e1c mi\u1ebfng d\u00e1n silicone \u0111\u01b0\u1ee3c \u0111\u1eb7t chung v\u1edbi h\u1ed9p nh\u1ef1a PVC, ch\u00fang t\u00f4i \u0111\u00e3 m\u1ea5t g\u1ea7n m\u1ed9t ph\u1ea7n ba l\u00f4 h\u00e0ng do khi\u1ebfu n\u1ea1i trong v\u00f2ng ch\u01b0a \u0111\u1ea7y n\u0103m th\u00e1ng. K\u1ec3 t\u1eeb \u0111\u00f3, ch\u00fang t\u00f4i gi\u1eef silicone t\u00e1ch bi\u1ec7t\u2014kh\u00f4ng c\u00f3 PVC trong t\u1ea7m tay trong qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i ho\u1eb7c s\u1eafp x\u1ebfp.<\/p>\n\n\n\n

D\u1ea7u m\u1ee1 t\u1eeb m\u00f4i tr\u01b0\u1eddng<\/h3>\n\n\n\n

D\u1ea7u tr\u00ean da, m\u1ee1 khi n\u1ea5u \u0103n, kem d\u01b0\u1ee1ng da tay, th\u1eadm ch\u00ed c\u1ea3 ch\u1ea5t b\u00f4i tr\u01a1n trong kh\u00f4ng kh\u00ed nh\u00e0 m\u00e1y \u0111\u1ec1u b\u1ecb h\u1ea5p th\u1ee5 do c\u1ea5u tr\u00fac m\u1edf c\u1ee7a v\u1eadt li\u1ec7u. Theo th\u1eddi gian, ch\u00fang b\u1ecb oxy h\u00f3a th\u00e0nh c\u1eb7n d\u00ednh kh\u00f3 lo\u1ea1i b\u1ecf ho\u00e0n to\u00e0n. D\u1ee5ng c\u1ee5 nh\u00e0 b\u1ebfp v\u00e0 v\u00f2ng \u0111eo tay theo d\u00f5i s\u1ee9c kh\u1ecfe l\u00e0 nh\u1eefng v\u00ed d\u1ee5 \u0111i\u1ec3n h\u00ecnh. M\u1ed9t thay \u0111\u1ed5i \u0111\u01a1n gi\u1ea3n\u2014th\u00eam ghi ch\u00fa \u201clau s\u1ea1ch b\u1eb1ng x\u00e0 ph\u00f2ng nh\u1eb9 tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng l\u1ea7n \u0111\u1ea7u\u201d\u2014\u0111\u00e3 l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 t\u1ef7 l\u1ec7 tr\u1ea3 l\u1ea1i h\u00e0ng tr\u00ean m\u1ed9t s\u1ed1 d\u00f2ng s\u1ea3n ph\u1ea9m ti\u00eau d\u00f9ng.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Nh\u1eefng vi\u1ec7c ch\u00fang t\u00f4i l\u00e0m trong kh\u00e2u s\u1ea3n xu\u1ea5t \u0111\u1ec3 ng\u0103n ch\u1eb7n v\u1ea5n \u0111\u1ec1 tr\u01b0\u1edbc khi n\u00f3 x\u1ea3y ra<\/h2>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p \u0111i\u1ec1u tr\u1ecb b\u1eb1ng b\u1ea1ch kim b\u1ea5t c\u1ee9 khi n\u00e0o c\u00f3 th\u1ec3<\/h3>\n\n\n\n

Peroxide \u0111\u1ec3 l\u1ea1i c\u00e1c s\u1ea3n ph\u1ea9m ph\u00e2n h\u1ee7y c\u00f3 t\u00ednh axit, th\u00fac \u0111\u1ea9y s\u1ef1 di chuy\u1ec3n v\u00e0 hi\u1ec7n t\u01b0\u1ee3ng k\u1ebft tinh. H\u1ec7 th\u1ed1ng b\u1ea1ch kim li\u00ean k\u1ebft ch\u00e9o ch\u1ea5t t\u1ea9y r\u1eeda v\u1edbi l\u01b0\u1ee3ng ch\u1ea5t bay h\u01a1i \u00edt h\u01a1n nhi\u1ec1u. \u0110\u1ed1i v\u1edbi c\u00e1c s\u1ea3n ph\u1ea9m y t\u1ebf, ti\u1ebfp x\u00fac v\u1edbi th\u1ef1c ph\u1ea9m, ho\u1eb7c b\u1ea5t c\u1ee9 th\u1ee9 g\u00ec \u0111\u01b0\u1ee3c k\u1ef3 v\u1ecdng s\u1eed d\u1ee5ng trong nhi\u1ec1u n\u0103m, ch\u00fang t\u00f4i th\u1eadm ch\u00ed kh\u00f4ng c\u00f2n b\u00e1o gi\u00e1 peroxide n\u1eefa tr\u1eeb khi kh\u00e1ch h\u00e0ng y\u00eau c\u1ea7u. Chi ph\u00ed v\u1eadt li\u1ec7u cao h\u01a1n l\u00e0 c\u00f3 th\u1eadt, nh\u01b0ng n\u00f3 gi\u00fap gi\u1ea3m t\u1ef7 l\u1ec7 s\u1ea3n ph\u1ea9m l\u1ed7i v\u00e0 khi\u1ebfu n\u1ea1i \u0111\u1ee7 \u0111\u1ec3 b\u00f9 \u0111\u1eafp cho s\u1ef1 ch\u00eanh l\u1ec7ch gi\u00e1.<\/p>\n\n\n\n

Chu k\u1ef3 \u0111i\u1ec1u tr\u1ecb sau ph\u1eabu thu\u1eadt ho\u00e0n ch\u1ec9nh<\/h3>\n\n\n\n

Ch\u00fang t\u00f4i gi\u1eef \u1edf nhi\u1ec7t \u0111\u1ed9 200 \u00b0C trong t\u1ed1i thi\u1ec3u b\u1ed1n gi\u1edd trong l\u00f2 nung c\u00f3 h\u1ec7 th\u1ed1ng tu\u1ea7n ho\u00e0n m\u1ea1nh \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi khay \u0111\u1ec1u ch\u1ecbu \u0111\u01b0\u1ee3c \u0111i\u1ec1u ki\u1ec7n nh\u01b0 nhau. \u0110i\u1ec1u n\u00e0y lo\u1ea1i b\u1ecf c\u00e1c chu k\u1ef3 d\u01b0 th\u1eeba, th\u00fac \u0111\u1ea9y qu\u00e1 tr\u00ecnh li\u00ean k\u1ebft ngang ho\u00e0n t\u1ea5t v\u00e0 n\u00e2ng cao nhi\u1ec7t \u0111\u1ed9 chuy\u1ec3n pha th\u1ee7y tinh (Tg) gi\u00fap \u1ed5n \u0111\u1ecbnh l\u00e2u d\u00e0i h\u01a1n. C\u00e1c s\u1ea3n ph\u1ea9m b\u1ecf qua b\u01b0\u1edbc n\u00e0y ho\u1eb7c \u0111\u01b0\u1ee3c x\u1eed l\u00fd v\u1ed9i v\u00e0ng s\u1ebd c\u00f3 h\u00e0m l\u01b0\u1ee3ng ch\u1ea5t chi\u1ebft xu\u1ea5t cao h\u01a1n v\u00e0 b\u1ecb d\u00ednh s\u1edbm h\u01a1n trong qu\u00e1 tr\u00ecnh l\u00e3o h\u00f3a nhi\u1ec7t\/\u0111\u1ed9 \u1ea9m.<\/p>\n\n\n\n

X\u1eed l\u00fd b\u1ec1 m\u1eb7t cho c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt kh\u1eaft khe<\/h3>\n\n\n\n

Khi \u0111\u1ed9 ma s\u00e1t th\u1ea5p ho\u1eb7c kh\u1ea3 n\u0103ng ch\u1ed1ng b\u1ee5i l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng\u2014v\u00ed d\u1ee5 nh\u01b0 \u0111\u1ea7u \u1ed1ng th\u00f4ng ho\u1eb7c gio\u0103ng \u0111eo \u0111\u01b0\u1ee3c\u2014ch\u00fang t\u00f4i s\u1eed d\u1ee5ng l\u1edbp ph\u1ee7 Parylene m\u1ecfng ho\u1eb7c k\u00edch ho\u1ea1t b\u1eb1ng plasma k\u1ebft h\u1ee3p v\u1edbi l\u1edbp ph\u1ee7 ngo\u00e0i b\u1eb1ng flo ho\u1eb7c phenyl. Plasma l\u00e0m t\u0103ng n\u0103ng l\u01b0\u1ee3ng b\u1ec1 m\u1eb7t, gi\u00fap l\u1edbp th\u1ee9 c\u1ea5p li\u00ean k\u1ebft t\u1ed1t h\u01a1n v\u00e0 ch\u1ed1ng b\u00e1m d\u1ea7u t\u1ed1t h\u01a1n so v\u1edbi silicone ch\u01b0a qua x\u1eed l\u00fd.<\/p>\n\n\n\n

Ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd c\u00e1c h\u1ee3p ch\u1ea5t m\u1ec1m<\/h3>\n\n\n\n

C\u00e1c lo\u1ea1i polymer c\u00f3 \u0111\u1ed9 c\u1ee9ng t\u1eeb 10A \u0111\u1ebfn 30A c\u1ea7n th\u00eam ch\u1ea5t l\u1ecfng \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 m\u1ec1m mong mu\u1ed1n, nh\u01b0ng kho\u1ea3ng c\u00e1ch gi\u1eefa "v\u1eeba ph\u1ea3i" v\u00e0 "\u0111\u1ed5 m\u1ed3 h\u00f4i" r\u1ea5t h\u1eb9p. Hi\u1ec7n nay, ch\u00fang t\u00f4i ti\u1ebfn h\u00e0nh c\u00e1c th\u1eed nghi\u1ec7m nh\u1ecf tr\u00ean t\u1eebng l\u00f4 polymer m\u1edbi \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh ch\u00ednh x\u00e1c l\u01b0\u1ee3ng d\u1ea7u c\u1ea7n thi\u1ebft. Ch\u1ec9 c\u1ea7n cao h\u01a1n v\u00e0i ph\u1ea7n tr\u0103m l\u00e0 s\u1ebd g\u00e2y ch\u1ea3y d\u1ea7u; qu\u00e1 th\u1ea5p th\u00ec chi ti\u1ebft s\u1ebd b\u1ecb r\u00e1ch s\u1edbm.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

C\u00e1ch ch\u00fang t\u00f4i ch\u1ea9n \u0111o\u00e1n t\u1ea1i x\u01b0\u1edfng s\u1ea3n xu\u1ea5t ho\u1eb7c trong ph\u00f2ng th\u00ed nghi\u1ec7m<\/h2>\n\n\n\n

Kh\u0103n lau IPA \u0111\u01a1n gi\u1ea3n<\/h3>\n\n\n\n

L\u00e0m \u1ea9m m\u1ed9t mi\u1ebfng v\u1ea3i kh\u00f4ng x\u01a1 b\u1eb1ng c\u1ed3n isopropanol 99 % v\u00e0 ch\u00e0 m\u1ea1nh ch\u1ed7 d\u00ednh trong 10-15 gi\u00e2y. N\u1ebfu \u0111\u1ed9 d\u00ednh bi\u1ebfn m\u1ea5t ho\u00e0n to\u00e0n v\u00e0 b\u1ec1 m\u1eb7t kh\u00f4 r\u00e1o tr\u1edf l\u1ea1i, \u0111\u00f3 l\u00e0 do s\u1ef1 lan r\u1ed9ng ho\u1eb7c nhi\u1ec5m b\u1ea9n tr\u00ean b\u1ec1 m\u1eb7t. N\u1ebfu sau v\u00e0i l\u1ea7n ch\u00e0 m\u00e0 v\u1eabn m\u1ec1m v\u00e0 d\u00ednh, s\u1ef1 xu\u1ed1ng c\u1ea5p \u0111\u00e3 \u0103n s\u00e2u v\u00e0o v\u1eadt li\u1ec7u.<\/p>\n\n\n\n

Xu h\u01b0\u1edbng \u0111\u1ed9 c\u1ee9ng theo th\u1eddi gian<\/h3>\n\n\n\n

\u0110o \u0111\u1ed9 c\u1ee9ng Shore A t\u1ea1i c\u00f9ng m\u1ed9t v\u1ecb tr\u00ed\u2014ng\u00e0y th\u1ee9 0, sau \u0111\u00f3 b\u1ed1n tu\u1ea7n, m\u01b0\u1eddi hai tu\u1ea7n trong \u0111i\u1ec1u ki\u1ec7n b\u1ea3o qu\u1ea3n \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t. S\u1ef1 gi\u1ea3m li\u00ean t\u1ee5c t\u1eeb 5 \u0111i\u1ec3m tr\u1edf l\u00ean th\u01b0\u1eddng c\u00f3 ngh\u0129a l\u00e0 s\u1ef1 \u0111\u1ee9t g\u00e3y chu\u1ed7i. C\u00e1c tr\u01b0\u1eddng h\u1ee3p di chuy\u1ec3n gi\u1eef cho \u0111\u1ed9 c\u1ee9ng t\u1ed5ng th\u1ec3 g\u1ea7n nh\u01b0 kh\u00f4ng \u0111\u1ed5i.<\/p>\n\n\n\n

Qu\u00e9t nhanh FTIR<\/h3>\n\n\n\n

Ch\u1ebf \u0111\u1ed9 ATR cho th\u1ea5y v\u1eadt li\u1ec7u l\u1ea1 r\u1ea5t nhanh. Silicon nguy\u00ean ch\u1ea5t c\u00f3 c\u00e1c d\u1ea3i Si-O r\u00f5 n\u00e9t quanh 1080 v\u00e0 1010 cm\u207b\u00b9 c\u1ed9ng v\u1edbi Si-CH\u2083 \u1edf 1260 v\u00e0 2960 cm\u207b\u00b9. B\u1ea5t k\u1ef3 \u0111\u1ec9nh carbonyl n\u00e0o g\u1ea7n 1720\u20131740 cm\u207b\u00b9 \u0111\u1ec1u b\u00e1o hi\u1ec7u c\u00e1c s\u1ea3n ph\u1ea9m oxy h\u00f3a ho\u1eb7c s\u1ef1 x\u00e2m nh\u1eadp c\u1ee7a phthalate.<\/p>\n\n\n\n

K\u00fd t\u00ean \/ Ki\u1ec3m tra<\/td>Nh\u1eefng d\u1ea5u hi\u1ec7u xu\u1ed1ng c\u1ea5p<\/td>C\u00e1c \u0111i\u1ec3m c\u1ea7n l\u01b0u t\u00e2m<\/td><\/tr>
kh\u0103n lau IPA<\/td>\u0110inh ghim gi\u1eef nguy\u00ean v\u1ecb tr\u00ed ho\u1eb7c nhanh ch\u00f3ng tr\u1edf l\u1ea1i.<\/td>Keo d\u00e1n bong ra, b\u1ec1 m\u1eb7t tr\u1edf l\u1ea1i b\u00ecnh th\u01b0\u1eddng.<\/td><\/tr>
B\u1edd A thay \u0111\u1ed5i<\/td>Gi\u1ea3m \u0111\u00e1ng k\u1ec3 (h\u01a1n 5 \u0111i\u1ec3m)<\/td>Gi\u1eef \u1edf m\u1ee9c ch\u00eanh l\u1ec7ch 2-3 \u0111i\u1ec3m.<\/td><\/tr>
M\u00f9i khi \u0111\u01b0\u1ee3c l\u00e0m n\u00f3ng<\/td>M\u00f9i cao su ch\u00e1y ho\u1eb7c m\u1ed9t ch\u00fat axit<\/td>C\u00f3 v\u1ecb d\u1ea7u, \u0111\u00f4i khi h\u01a1i ng\u1ecdt\/gi\u1ed1ng nh\u1ef1a.<\/td><\/tr>
Th\u1eddi \u0111i\u1ec3m b\u1eaft \u0111\u1ea7u<\/td>Li\u00ean quan \u0111\u1ebfn s\u1ef1 ki\u1ec7n nhi\u1ec7t \u0111\u1ed9, tia c\u1ef1c t\u00edm ho\u1eb7c \u0111\u1ed9 \u1ea9m.<\/td>X\u00e2y d\u1ef1ng ch\u1eadm, th\u01b0\u1eddng t\u1eeb 3 \u0111\u1ebfn 12 tu\u1ea7n.<\/td><\/tr>
C\u00e1c t\u00e1c nh\u00e2n g\u00e2y b\u1ec7nh \u0111i\u1ec3n h\u00ecnh<\/td>\u1ee6 qu\u00e1 li\u1ec1u, b\u1ea3o qu\u1ea3n k\u00e9m, ti\u1ebfp x\u00fac v\u1edbi m\u00f4i tr\u01b0\u1eddng<\/td>Qu\u00e1 tr\u00ecnh \u0111\u00f3ng r\u1eafn ch\u01b0a ho\u00e0n t\u1ea5t, c\u00f3 nh\u1ef1a PVC \u1edf g\u1ea7n \u0111\u00f3, d\u1ea7u m\u1ee1.<\/td><\/tr>
C\u00e1c ch\u1ea5t c\u00f3 th\u1ec3 chi\u1ebft xu\u1ea5t trong dung m\u00f4i<\/td>V\u1eeba ph\u1ea3i<\/td>Th\u01b0\u1eddng c\u00f3 h\u00e0m l\u01b0\u1ee3ng cao h\u01a1n (c\u00e1c h\u1ee3p ch\u1ea5t v\u00f2ng, este)<\/td><\/tr>
V\u0129nh vi\u1ec5n?<\/td>C\u1ea7n ph\u1ea3i lo\u1ea1i b\u1ecf th\u00e0nh ph\u1ea7n kh\u00f4ng c\u1ea7n thi\u1ebft ho\u1eb7c \u0111i\u1ec1u ch\u1ec9nh l\u1ea1i c\u00f4ng th\u1ee9c.<\/td>Th\u01b0\u1eddng c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c b\u1eb1ng c\u00e1ch v\u1ec7 sinh.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"\"<\/figure>\n\n\n\n

Nh\u1eefng nguy\u00ean t\u1eafc c\u01a1 b\u1ea3n v\u1ec1 l\u01b0u tr\u1eef v\u00e0 x\u1eed l\u00fd h\u00e0ng h\u00f3a r\u1ea5t quan tr\u1ecdng<\/h2>\n\n\n\n

B\u1ea3o qu\u1ea3n \u1edf nhi\u1ec7t \u0111\u1ed9 d\u01b0\u1edbi 25 \u00b0C v\u00e0 \u0111\u1ed9 \u1ea9m 50%. S\u1eed d\u1ee5ng t\u00fai ho\u1eb7c khay b\u1eb1ng polyethylene\u2014tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng d\u00f9ng PVC ho\u1eb7c b\u00eca c\u1ee9ng ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp. B\u00e1o c\u00e1o c\u00e1c tr\u01b0\u1eddng h\u1ee3p kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u trong giai \u0111o\u1ea1n xem x\u00e9t thi\u1ebft k\u1ebf ban \u0111\u1ea7u \u0111\u1ec3 tr\u00e1nh tr\u01b0\u1eddng h\u1ee3p silicone b\u1ecb \u00e9p v\u00e0o linh ki\u1ec7n ch\u1ee9a nhi\u1ec1u ch\u1ea5t d\u1ebbo.<\/p>\n\n\n\n

Ph\u1ea7n k\u1ebft lu\u1eadn<\/h2>\n\n\n\n

Silicone c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng t\u1ed1t \u1edf nhi\u1ec1u kh\u00eda c\u1ea1nh, nh\u01b0ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1ea5t kh\u1ea3 x\u00e2m ph\u1ea1m. \u0110\u1ed9 d\u00ednh h\u1ea7u nh\u01b0 lu\u00f4n ph\u1ee5 thu\u1ed9c v\u00e0o nh\u1eefng l\u1ef1a ch\u1ecdn c\u1ee7a ch\u00fang ta v\u1ec1 nguy\u00ean li\u1ec7u th\u00f4, chi ti\u1ebft x\u1eed l\u00fd, gia c\u00f4ng sau in v\u00e0 c\u00e1ch b\u1ea3o qu\u1ea3n ho\u1eb7c l\u1eafp r\u00e1p c\u00e1c b\u1ed9 ph\u1eadn. N\u1ebfu \u0111i\u1ec1u ch\u1ec9nh \u0111\u00fang c\u00e1c y\u1ebfu t\u1ed1 n\u00e0y, v\u1ea5n \u0111\u1ec1 h\u1ea7u nh\u01b0 s\u1ebd bi\u1ebfn m\u1ea5t.<\/p>","protected":false},"excerpt":{"rendered":"

Tackiness on silicone parts is a problem that keeps coming back. You mold the parts carefully. They come out smooth and dry. Everything looks good. Then a month later, customers complain. The seals feel greasy. The grips stick to fingers. A baby teether slides off the tray. In medical devices, baby products, or high-end kitchen […]<\/p>\n","protected":false},"author":1,"featured_media":15875,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[888],"tags":[1041,1040,1042],"class_list":["post-15869","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-silicone-testing","tag-silicone-plasticizer-migration","tag-silicone-polymer-degradation","tag-sticky-silicone-phenomenon"],"_links":{"self":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts\/15869","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/comments?post=15869"}],"version-history":[{"count":0,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/posts\/15869\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/media\/15875"}],"wp:attachment":[{"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/media?parent=15869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/categories?post=15869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rysilicone.com\/vi\/wp-json\/wp\/v2\/tags?post=15869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}