Kedu ihe na-ebute mgbawa na PTFE Impregnation Process?

Dị ka a ọkachamara isi emeputa nke PTFE elu okpomọkụ akwa, Jiangsu Aokai New Materials ga-akọwa ihe na-akpata cracking na iko eriri ákwà mgbe impregnation na PTFE (polytetrafluoroethylene) emulsion. Nke a bụ a na-ahụkarị usoro nke na mejupụtara ihe n'ichepụta, nke na-emekarị emee n'oge ihicha (mwepụ nke mmiri na surfactants) ma ọ bụ elu-okpomọkụ sintering (na-agbaze ahụ PTFE ahụ n'ime ihe nkiri na-aga n'ihu).

1. Mgbanwe dị egwu nke ọnụọgụ mgbasawanye okpomọkụ

Nke a bụ isi ihe kpatara anụ ahụ.

E nwere nnukwu ihe dị iche na thermal mgbasa ọnụọgụ n'etiti iko eriri na PTFE: na linear mgbasa ọnụọgụ nke iko eriri bụ mkpokọta 5 × 10⁻⁶ / ℃ , mgbe nke PTFE bụ banyere 100 × 10⁻⁶ / ℃ na 200 × 10⁻⁻ / ℃  ugboro nke iko (ike ike).

N'oge jụrụ (site na a sintering okpomọkụ nke mkpokọta 380 ℃-400 ℃ ruo ụlọ okpomọkụ), PTFE shrinks nnọọ ukwuu karịa iko eriri kpuchie. Ebe ọ bụ na akwa eriri iko na-arụ ọrụ dị ka ọkpụkpụ siri ike, PTFE na-egbochi ya n'oge mgbụsị akwụkwọ, na-emepụta nrụgide dị ukwuu n'ime ahụ. Mgbe nrụgide a karịrị ike nkwụsị nke ihe nkiri PTFE ma ọ bụ ike njikọ ihu n'etiti PTFE na eriri iko, mgbawa na-eme ka ọ hapụ nrụgide ahụ.

2. Njikwa na-ezighi ezi nke ihicha na usoro nsị

Igwe kpo oku nke ihe etinyere na-emetụta ozugbo:

·  Oke ngwa ngwa kpo oku ọnụego : Karịsịa na gburugburu 100 ℃ (ngwa ngwa vaporization nke mmiri) na 200 ℃-250 ℃ (decomposition nke surfactants na emulsion na crystalline mgbanwe mpaghara n'ihu PTFE sintering). Igwe ọkụ ngwa ngwa na-akpata nrụgide dị n'ime na mmetụta gas site na ngbanwe ozugbo nke ihe mgbaze na ihe mgbakwunye, na-ebute mkpuchi mkpuchi.

·  Oke ngwa ngwa jụrụ ọnụego : Direct ikpughe na ambient ikuku maka ngwa ngwa jụrụ mgbe sintering emepụta ufiop ozugbo shrinkage nchegbu n'ihi nnukwu okpomọkụ iche iche, nke ngwa ngwa na-ebute ezi netwọk cracks.

:  Okpomọkụ dị elu nke ukwuu ma ọ bụ ogologo oge na-agwụ ike Nke a na-ebute mmebi nke ịdị arọ molecular PTFE na oke mmiri mmiri, na-eme ka ihe ahụ dịkwuo mfe ịgbawa n'okpuru nrụgide.

3. Okwu na Impregnation Usoro na Emulsion Concentration

Ọkpụrụkpụ, ịdị n'otu na ntinye omimi nke oyi akwa a na-etinye n'ime ahụ na-emetụta mmetụta mgbawa ozugbo:

·  Oke oke otu impregnation oyi akwa : N'ịchụso ọkpụrụkpụ ma ọ bụ nrụpụta nrụpụta, a na-etinye mkpuchi PTFE dị oke oke n'otu ngafe. N'oge ihicha na sintering, a oké mkpuchi nwere ogologo ụzọ maka ihe mgbaze na-enweta nnukwu volumetric shrinkage (PTFE emulsion na-enwekarị ọdịnaya siri ike nke ihe dị ka 60%, nke pụtara roughly 40% mmiri ga-ewepụ), nke na-ebutekarị mgbawa elu.

·  Eneven impregnation : Mpaghara PTFE gabiga ókè ma ọ bụ nkesa emulsion na-ezighi ezi n'elu akwa akwa na-eduga na nrụgide shrinkage gbadoro anya.

·  Ezughi oke emulsion penetration : Ọ bụrụ na iko eriri ákwà na-adịghị dewaxed ma ọ bụ emezighituri elu-emeso, PTFE emulsion ada ada n'ụzọ zuru ezu banye n'ime eriri bundles na naanị etolite a elu ' akpụkpọ film '. Ihe nkiri a na-esighi ike arịlịka ya na mkpụrụ ma na-agbawa ma ọ bụ gbawa mgbe ọ dị ọkụ.

4. Ihe ndị metụtara Substrate

·  Unde-waxed iko eriri ákwà : Glass eriri ákwà nwere sizing agents (paraffin, epoxy, wdg) site na-akpa ákwà. Na-enweghị elu okpomọkụ dewaxing ma ọ bụ chemical ihicha tupu impregnation, ndị a organic bekee carbonize na volatilize n'oge ụdi sintering, na-amụba gas na ruptures mkpuchi ma ọ bụ ebelata bonding n'etiti PTFE na iko eriri, dapụtara na cracks.

·  Ọdịdị na ọkpụrụkpụ nke iko eriri ákwà : Thicker na denser iko eriri ákwà (dị ka oké satin ákwà) egosiputa elu rigidity na ike njide na PTFE shrinkage. Ka ọ dị ugbu a, oghere dị omimi n'etiti eriri eriri na-ebute mgbakasị ahụ na mgbawa n'akụkụ oghere n'oge ihicha.

Ozi dị n'elu bụ Jiangsu Aokai New Materials Technology Co., Ltd.

Maka nkọwa zuru ezu, ihe atụ ngwa na ngwọta ahaziri nke ngwaahịa anyị zuru oke - gụnyere akwa akwa okpomọkụ dị elu PTFE, teepu okpomọkụ dị elu PTFE, eriri akwa PTFE dị elu, eriri na-enweghị ihe ọ bụla maka igwe na-ejikọta, akwa PTFE nwere otu akụkụ, akwa ọkụ na-eguzogide ọgwụ na-ebufe eriri, akwa na-eguzogide ọgwụ, biko nwee mmetụta ndị ọzọ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ na-ekpo ọkụ.

·  Igwe ọkụ ọrụ: Mr. Guo: +86 18944819998 Mazị Liu: +86 13705266308

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