Ndi kusintha kotani komwe kumachitika mu nsalu ya PTFE yotentha kwambiri pakakalamba?

PTFE high-temperaturemabricisacompositematerialopangidwa ndikukhala ndi mimba kapena zokutira magalasi fiberbasefabriric withpolytetrafluoroethylene(PTFE).

Kuwonekera motalika kwambiri mpaka kutentha kwakukulu, kutentha kwa thermo-oxidative, kuwala kwa ultraviolet, ndi makina osindikizira, kapangidwe kake pansi pakuyenda kosinthika kusinthakuchokera ku molecular tothemacroscopiclevel.

I.MicrostructuralChangesinthePTFECoating

Kuwonongeka kwa unyolo wa mamolekyulu ndi oxidation: The carbon-fluorinemaunyolo pansi pa chain scission, depolymerization, andoxidation, kuchititsa kuchepa kuchepa kwa molecularweight ndi mapangidwe amagulu a polarsuchascarbonylandcarboxylmagulu omwe amatsatira.

Kusintha kwaukali: Zigawo zaunyolo zazifupi pansi pazachiwirinso zakristalo.Poyambirira, mawonekedwe akristalo amakula mwachibadwa, zomwe zimapangitsa kuti zokutira zikhale zolimba komanso zocheperapo.

Kuwonongeka kwa microscopicmorphology: Kuwonongeka ndi kuchepa kwamakasitima kumapanga ming'alu yaing'ono ndi mapini ochuluka, kupanga njira zowotcha.Zizigawo zingapo, zokutira pamwamba pa ufa ndi PTFEparticles detach.

II.Structural ChangesintheGlassFiberSubstrateand Interface

Kulephera kukulitsa/kuphatikizana: Silanecouplingagentsororganicsizingagentsonthe glass fiber surface decompose and carbonizethreturesightyth first,kupangitsa kutayika kwachemicalmabondindimakina kutsekereza mphamvu pakati pa PTFEndimagalasi.

Interface debondandidelation: Pambuyo pa kulephera kwa mawonekedwe, kusiyana kwa kuchuluka kwamafuta komwe kumagwira ntchito pakati pa PTFE ndi galasi limatulutsa mphamvu yamafuta, kutsogola kupenta ndi kupatukana kwa zokutira kuchokera kunsalu, kumatuluka, kusungunuka, ndi kuyika malo oyera.

Kuwonongeka kwa galasi lokha: Kutentha kwapamwamba kwasandangazakalinizimene zimawononga magalasi, kuchititsa micro-cracksonthe fiber pamwamba ndi kuphulika.

III. KusinthaMapangidwe Aakuluakulu ndi Maonekedwe

Kusintha kwamtundu: Zinthu zimasintha pang'onopang'ono kuchokera ku zoyera zachilengedwe kukhalabeige, zofiirira, zakuda kapena zakuda, zotulukapo kuchokera ku carbonization of the interfacial layer, zomatira za organic contaminants, ndi zina zotsalira kuchokera pakuwonongeka kwakung'ono kwaPTFE.

Kukhazikika kwa Dimensional and Flatness: Shrinkagedeformation imachitika, nsalu pamwamba pake imakhala yofanana, ndi m'mphepete mwamakutu.

Kukula: Kuwoneka mofewa kumawoneka, ndipo pamwamba pake kumakhala kosavuta komanso kutayika.

Kugubuduka kwamakina: Zakuthupi zimataya kwathunthu kusinthasintha ndi kusweka popindika. Zotitirazo zimasiyana kwambiri ndi nsalu zoyambira, zomwe zimapangitsa kuti zikhale zovuta kugwira ntchito.

IV.Kufunika kwaMchitidwe Wokalamba

Zosinthazi zili pamwambazi zimakhala njira yopititsira patsogolo'kuwonongeka kwamawonekedwe→kulephera kwapamawonekedwe→kuwonongeka kwagawo.'PTFElosesitsinertnessndikupanga ming'alu;cholumikizira chagalasicho chimaonongeka pamaso pa ulusiwokha,kupangitsa kuti chiwonongeko; Kulamulira kutentha kwa ntchito, kupewa kugwedezeka kwa kutentha kuchokera ku kutentha ndi kuzizira, ndi kupewa kukhudzana ndi asidi sandalkali, kumachepetsa mchitidwewu.

Zomwe zili pamwambazi zimaperekedwa ndiJiangsuOKNewMaterialTechnologyCo.,Ltd.

Ngati mungafune kudziwa zambiri zatsatanetsatane, mawonekedwe ogwiritsira ntchito, ndikusintha mwamakonda zosankha zathuzamtundu wazinthu zonse-kuphatikiza PTFEhigh-temperature fabric,PTFEhigh-temperaturetepe,Teflonhigh -malamba amiyendo,opanda msoko pazitsulo zomatira,zovala zambali imodziPTFE,malamba onyamula kutentha kwambiri,ndi nsalu zamagalasi zotentha kwambiri—chonde khalani omasuka kulumikizana ndi njira zotsatirazi:

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