Impinduka zuburyo bwa PTFE Imyenda Yubushyuhe Bwinshi Mubihe Byinshi-Ubushyuhe

Imyenda ya PTFE yubushyuhe bwo hejuru nuburinganire bwa PTFE hamwe na fiberglass substrate. Iyo uhuye nubushyuhe bwiyongera, ibi bikoresho ntabwo 'gushonga ' mugihe kimwe - bigenda bikurikirana impinduka zumubiri nimbonezamubano bigenda byiyongera mubipimo bine bitandukanye.

Kuva kuri micro-crack kuri 260 ° C kugeza kurangiza kubora kuri 500 ° C +, impinduka zimiterere zigira ingaruka kuri PTFE mbere, hanyuma fibre yububiko. Gusobanukirwa ibi byiciro ni ngombwa kubikorwa byizewe kandi byizewe.

Aokai PTFE yasesenguye imyitwarire yubushyuhe bwimyenda ya PTFE yuzuye mubushyuhe bwose. Aka gatabo gasobanura ibyiciro bine byingenzi byahinduwe kandi bitanga imipaka yubushyuhe.

Umwanya muremure wa serivisi yubushyuhe - Munsi ya 260 ° C.

Imiterere rusange iguma ihagaze neza mugihe itinze, microscopique ihinduka buhoro buhoro.

1. Kuruhura iminyururu ya PTFE no guhinduranya ibintu

Kumara igihe kirekire ubushyuhe butera kugenda buhoro buhoro iminyururu ya polymer kandi ikazamura kristu. Igipfundikizo rero gihinduka gake cyane hamwe no kwiyongera kwubuso. Ubu ni inzira itinda - gupimwa nyuma yamasaha amagana cyangwa ibihumbi.

2. Gukusanya impagarara ziterwa nubushyuhe

PTFE igaragaramo coefficente yubushyuhe bwa 10 × 10⁻⁵ / ° C , iri hejuru cyane ya fiberglass kuri 5 × 10⁻⁶ / C. ° Gusiganwa ku magare bikonje bikonje bitera guhangayika imbere kumupaka wa coating-substrate, amaherezo bigakora micro-crack mugihe. Nuburyo bwibanze bwo gusaza murwego rwo gukora neza.

3. Guhindagurika kwinyongera zisigaye

Ibisigarira bisigaye hamwe nogusiga ibintu bisigaye bivuye kubicuruzwa bibora buhoro buhoro, biganisha ku mwijima mwinshi hejuru yigitambara. Ibi mubisanzwe ntacyo bitwaye ariko byerekana ibikoresho bishaje.

Ubushyuhe Kwegera no Kurenga Gushonga - Hafi ya 327 ° C.

PTFE imaze kugera ku bushyuhe bwayo, ihinduka rikomeye ryimiterere-imiterere.

1. Crystalline-karere gushonga

Semi-kristalline opaque amata-yera PTFE ihinduka amorphous gel imeze nkamazi aherekejwe no kwaguka gukabije . Igifuniko gitakaza imbaraga zose zubukanishi kandi gitangira koroshya no gutemba. Kuri iyi ngingo, umwenda utakaza uburinganire bwacyo nuburinganire bwuburinganire.

2. Gutandukanya hagati yo gutwikira no gukuramo

Kugabanya imbaraga zifatika hamwe nubushyuhe-bwagutse-buterwa no guhangayika bitera PTFE yashongeshejwe igashonga, igashonga, kandi igatembera kure yigitambara cya fiberglass, bikavamo gusibanganya hamwe no kunanirwa kwubaka. Ubuso butari inkoni bwangiritse kubwibyo. Iyo gusiba bimaze kubaho, ntibisubirwaho.

3. Fiberglass ikomeza imiterere ya skeleton

Imyenda ya fiberglass ikomeza guhagarara neza muriki cyiciro. Hatabayeho kurinda PTFE kurinda, ibirahuri byambaye ibirahure byangirika byangiza okiside hamwe nisuri yimiti.

Aokai PTFE kuburira: Ndetse ingendo ngufi ziri hejuru ya 327 ° C zitera gusubirwaho bidasubirwaho. Imyenda irashobora kugaragara neza iyo ikonje, ariko igifuniko cya PTFE cyatandukanije burundu na fiberglass, gutakaza ubunyangamugayo bwose.

Gutangira kubora k'ubushyuhe - 400 ° C kugeza 500 ° C.

Imigongo ya PTFE itangira kuvanga imiti, kuzana gusenyuka kwimiterere idasubirwaho.

1. Igisubizo cyiganje depolymerisation

Mubidukikije bidafite ogisijeni, PTFE ihura nubwoko bwa zipper . CC covalent bonds kumurongo wingenzi irasenyuka, ikarekura monomers ya gaze cyane cyane igizwe na tetrafluoroethylene (hejuru ya 95%) na hexafluoropropylene. Ibiro bya molekuline bigabanuka cyane, kandi igipfundikizo cya PTFE kirahinduka kandi kigatandukana.

2. Kwangirika kwa Oxidative mubihe byindege

Oxygene yibasira radicals yubusa kandi itanga imyuka yubumara nka karubone fluoride (COF₂) na trifluoromethane, iherekejwe numunuko ukabije. Hydrogen fluoride (HF) na perfluoroisobutylene (PFIB) nayo irashobora kurekurwa mubihe bimwe.

3. Kurikirana ibisigazwa bya karubone

PTFE isukuye hafi rwose nta bisigazwa bya karubone. Ibara ry'umukara ku mwenda rituruka kuri karubone ya fibre nini ya fiberglass, ibintu byanduza hejuru, cyangwa aboroheje muri PTFE yahinduwe.

4. Gutwika ibikoresho bya fibre yububiko

Ibikoresho bingana kama kuri fiberglass filaments byangirika hejuru ya 350 ° C. Ibirahuri by'ibirahure bitakaza gufatana, bigatuma imyenda ihindagurika kandi ikunda guhindagurika.

(配图 4 插入位置：本节末尾，展示 PTFE 在 400 ° C 以上分解后仅剩碳化残留物和裸露玻纤的照片）

Inyandiko: Umwenda wa PTFE nyuma ya 450 ° C yerekanwe - gutwikiriye kwangirika rwose, hasigara gusa ibisigazwa bya karubone kandi bigaragara, fibre yuzuye.

Ahantu ho Kurimbuka Ubushyuhe Bwinshi - Hejuru ya 500 ° C.

Igipfundikizo cya PTFE cyarazimye burundu, hasigara gusa substrate ya fiberglass yambaye ubusa ikomeza umutwaro urenze urugero.

1. Korohereza fibre E-ikirahure

Fibre isanzwe ya E-ikirahure ifite aho yoroshya hafi ° C. 840 Nubwo bimeze bityo ariko, imbaraga zayo zangirika zigabanuka cyane hejuru ya 500 ° C. Iyo ashyutswe hejuru ya 800 ° C, imyenda yose ya fiberglass yoroshya, igahinduka, igahinduka kandi igatakaza ubushobozi bwo gushyigikira imiterere.

2. Ubushyuhe bwo hejuru cyane hamwe na devitrification

Kumara igihe kinini ubushyuhe bwo hejuru butera kurambura ibirahuri by'ibirahure, bigakurikirwa na devitrification na pulverisation isenya rwose imyenda. Kuri iki cyiciro, umwenda ntukigaragara nkumwenda - uhinduka imbaga yoroheje, yoroshye yibirahure.

Incamake - Icyiciro cy'ubushyuhe n'imbibi zikomeye

Aokai PTFE irasaba kugenzura cyane ubushyuhe bwigihe kirekire bwo gukora munsi ya 260 ° C no kugabanya impinga zigihe gito kugeza kuri 300 ° C kugirango hirindwe imikorere mibi ndetse n’ingaruka zishobora guhungabanya umutekano ziterwa no gusenya no kubora.

Ibikoresho bya tekinike byavuzwe haruguru bitangwa na Jiangsu Aokai Ibikoresho bishya Ikoranabuhanga Co, Ltd.

Niba wifuza kubona ibipimo bya tekiniki birambuye, ibyerekanwe hamwe nibisubizo byabigenewe kubicuruzwa byacu byuzuye, harimo imyenda ya PTFE yubushyuhe bwo hejuru, kaseti ya PTFE yubushyuhe bwo hejuru, umukandara wa PTFE ufite ubushyuhe bwo hejuru, umukandara udashyushye, umukandara wa PTFE, umwenda umwe utwara ubushyuhe hamwe n’igitambaro cya fiberglass, nyamuneka utugereho ukoresheje amakuru arambuye:

• Bwana Guo: +86 18944819998

• Bwana Liu: +86 13705266308

Dushyigikiye ubunyangamugayo n’ubunyangamugayo nka filozofiya yacu y’ubucuruzi, twiyemeje gutanga ibisubizo by’inganda imwe hamwe na serivisi itekerezwa kubakiriya!