Ndedzipi shanduko yezvimiro inoitika muPTFE yakakwirira-tembiricha jira panguva yekuchembera?

PTFEhigh-temperaturefabricisacompositematerialmadebyipregnatingorcoating glassfiberbasefabriric withpolytetrafluoroethylene(PTFE).

Kuratidzira kwepasi kwenguva refu kune tembiricha yakakwira, thermo-oxidativeconditions, ultraviolet mwaranzi, uye mechanicalstress, chimiro chayo pasi pechinodzokororwachinochinja chinoshanduka kubva kune molecular tothemacroscopiclevel.Vagadziri vePTFEhigh-tembiricha bricca vanonzwisisa maitiro kuburikidza nezvinotevera zvinotevera:

I.MicrostructuralChangesinthePTFECoating

Molecularchaindegradationandoxidation: Thecarbon-fluorinemainchain undergoescheinscission,depolymerization,andoxidation,zvichikonzera kuderera kwemamolecular uremu uye kuumbwa kwemapoka epolarsuchascarbonylandcarboxylgroupsatchainends.Izvi zvinowedzera pamusoro pesimba uye zvinoderedza hunhu husiri hwemvura.

Shandukoincrystallinity: Maketani mapfupi ari pasi pesecondarycrystallization.Pakutanga,ukuru hwekristaro hunokura zvisingaite,zvichikonzera kuti kupfekedza kuome uye kupeta zvakanyanya.

Kushata kwemicroscopicmorphology: Kuderera uye kuderera kwemukadzikadzi kubereka akawanda madiki-diki nemapini maburi, kugadzira nzira dzekuora. Inseverecases, the coating pamusoro peupfu uye PTFEparticles detach.

II.Structural ShandukoGlassFiberSubstrateandInterface

Failureoffibersizing/couplingagents: Silanecouplingagentororganicsizingagentsontheglass fibersurface decompose andcarbonizeareightemperatureskutanga,zvichikonzera kurasikirwa kwekemikaribhondinemechini kuvharirana kusimba pakati pePTFEnefiber yegirazi.

Interfacialdebonding uye kumisa: Mushure mekutadza kwechiso,musiyano mukuwedzera kwemafuta ekuwedzera pakati pePTFE negirazi fiber inogadzira thethermalstress,inotungamira pakupenengura nekuparadzana kwejasi kubva pamucheka,zvinoita mukutubuka,deremesheni, uye yakaiswa nzvimbo dzakachena.

Kushatisa kwegirazi fibheri pachayo: Kupisa kwesandangu alkaline zvinhu zvinoparadza girazi network, zvichikonzera micro-cracksonthefiber pamusoro pechiso uye kupfupika. Zvichakadaro, alkalimetaloxide mugirazi fibre inopfuudza kutadza kusimba, inokonzera kuonda kunokanganisa zvakanyanya uye kunowedzera kukurumidza kusimba.

III.ShandukoMakrosikopuChimiroNekuonekwa

Kuchinja kweruvara: Zvinhu zvinoshanduka zvishoma nezvishoma kubva kuchena kwacho kwemavara echisikigo tobeige, bhurawuni, kana dema dema, zvichibva pacarbonization yeinterfaciallayer, kunamira kwezvinosvibisa organic, uye zvakasara zvigadzirwa kubva kudiki PTFE kuderera.

Dimensional kugadzikana uye flattness: Shrinkagedeformation inoitika, the fabricurface inova yakaenzana, andedgescurl.

Surfaceroughening: Thesmoothfeelness inonyangarika,uye iyo uso unobva washaya gloss.Inseverecases,upfu hunoonekwa pawakabatwa,inoratidzaPTFEupfu.

Mechanicalstructural collapse: Thepatic inorasikirwa zvachose kuchinjika uye kuputsika.

IV. Zvinokosha zveKukwegura

Zviri pamusoro zvinoumba muitiro unofambira mberi pamwe chete, chimiro chose chinova chisina kusimba,hupfu, uye chinoparadzana.Kudzora tembiricha yekushanda,kunzvenga kudengenyeka kunobva pakupisa nekutonhodza, uye kudzivirira kusangana nesanguhadhidhakaasidhikasi inogona kunyatsodzikisira maitiro ekugadzira.

Ruzivo rwuri pamusoro rwunopihwa naJiangsuOKNewMaterialTechnologyCo.,Ltd.

Kana uchida kudzidza zvakawanda pamusoro pezvinotsanangurwa, mashandisirwo emamiriro ekushandisa, uye magadzirirwo sarudzo dzezvedu zvizere zvezvigadzirwa-kusanganisiraPTFEhigh-temperature fabric,PTFEhigh-temperaturetepi,Teflonhigh -tembiricha yemesh mabhandi,isina musonomabhandi epamusoro pezvitsigiro,padivi rimwe PTFEfabric,high-temperatureconveyorbets,uyehigh-temperaturefiberglassfabric-ndapota inzwa wakasununguka kubata kuburikidza neanotevera nzira:

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