Wazi ntoni nge-PTFE?

Yintoni i-PTFE?

I-Polytetrafluoroethylene (PTFE) luhlobo lwepolymer eyenziwe nge-tetrafluoroethylene njenge-monomer. Inokumelana nokushisa okukhulu kunye nokubanda kwaye ingasetyenziselwa ixesha elide kwi-minus 180 ~ 260 º C. Le nto ineempawu zokuxhathisa i-asidi, ukuxhathisa kwe-alkali kunye nokumelana nezinyibilikisi ezahlukeneyo zezinto eziphilayo, kwaye ziphantse zinganyibiliki kuzo zonke izinyibilikisi. Kwangaxeshanye, i-polytetrafluoroethylene ineempawu zokumelana nobushushu obuphezulu, kwaye i-friction coefficient yayo iphantsi kakhulu, ngoko ingasetyenziselwa ukuthambisa, kwaye ibe yinto efanelekileyo yokucoca ulwelo lwangaphakathi lwemibhobho yamanzi. I-PTFE ibhekisa ekongezweni kwe-PTFE yokwambathisa ngaphakathi kwidibaniso yerabha eqhelekileyo ye-EPDM, emhlophe ikakhulu.

Indima ye-PTFE

I-PTFE inokukhusela ngokufanelekileyo amalungu erabha kwi-asidi eyomeleleyo, ialkali eyomeleleyo okanye i-oyile yobushushu obuphezulu kunye nokunye ukubola kwemidiya.

Injongo

• Isetyenziswa kushishino lombane nanjengomaleko wokugquma, uxhathiso ekumdleni kunye nempahla engagugiyo yamandla kunye nemigca yemiqondiso kwi-aerospace, inqwelomoya, i-electronics, i-instrumentation, ikhompyutha kunye namanye amashishini. Ingasetyenziselwa ukwenza iifilimu, ii-tube sheets, iintonga, iibheringi, i-gaskets, i-valve, imibhobho yeekhemikhali, izixhobo zombhobho, izixhobo ze-container linings, njl.
• Isetyenziselwa kwimimandla yezixhobo zombane, imboni yeekhemikhali, i-aviation, oomatshini kunye nezinye iindawo zokutshintsha i-quartz glassware ukwenzela uhlalutyo lweekhemikhali ezihlambulukileyo kunye nokugcinwa kwee-acids ezahlukeneyo, i-alkalis kunye nezinyibilikisi zezinto eziphilayo kwimimandla yamandla e-athomu, iyeza, i-semiconductor. kunye namanye amashishini. Ingenziwa ibe zizinto zombane ezigqunywe phezulu, iintambo zombane ezihamba rhoqo kunye neeshethi zentambo, izixhobo zekhemikhali ezikwaziyo ukugxwala, imibhobho yeoli ekwazi ukumelana nobushushu obuphezulu, amalungu angengowamvelo, njl. njl. igrisi, njl.
• I-PTFE iyaxhathisa kubushushu obuphezulu kunye nokudleka, ine-insulation egqwesileyo yombane, ukumelana nokuguga, ukufunxwa kwamanzi aphantsi, kunye nokusebenza okugqwesileyo kokuzithambisa. Ingumgubo wokuthambisa wendalo yonke olungele imidiya eyahlukeneyo, kwaye unokukhawuleza uqatywe ukwenza ifilimu eyomileyo, enokusetyenziswa njengebambela legraphite, imolybdenum kunye nezinye izithambiso ezingaphiliyo. Yi-arhente yokukhululwa efanelekileyo kwi-thermoplastic kunye ne-thermosetting polymers, kunye nomthamo obalaseleyo wokuthwala. Isetyenziswa kakhulu kushishino lwe-elastomer kunye nerabha kunye nokuthintela ukubola.
• Njengokugcwalisa i-epoxy resin, inokuphucula ukuxhathisa kwe-abrasion, ukumelana nobushushu kunye nokuxhathisa ukubola kwe-epoxy adhesive.
• Isetyenziswa kakhulu njenge-binder kunye ne-filler yomgubo.

Izinto ezilungileyo zePTFE

• Ukumelana nobushushu obuphezulu - ubushushu bokusebenza ukuya kuthi ga kwi-250 ℃
• Ukumelana nokushisa okuphantsi - ukuqina okulungileyo komatshini; Nokuba iqondo lobushushu lehla ukuya ku-196 ℃, ubude be-5% bunokugcinwa.
• Ukumelana ne-Corrosion - kwiikhemikhali ezininzi kunye ne-solvents, i-inert kwaye iyamelana ne-acids eqinile kunye ne-alkalis, amanzi kunye neentlobo ezahlukeneyo ze-solvents eziphilayo.
• Ukumelana nemozulu - inobomi obudala obungcono beeplastiki.
• Ukuthambisa okuphezulu yeyona friction coefficient ephantsi phakathi kwezinto eziqinileyo.
• Ukungabambeleli - bubuncinci boxinzelelo oluphezulu kwizinto eziqinileyo kwaye azibambeleli kuyo nayiphi na into.
• I-Non-toxic - Ine-inertia ye-physiological, kwaye ayinayo impendulo embi emva kokufakelwa kwexesha elide njengemithambo yegazi kunye namalungu okwenziwa.
• Ukufakelwa kombane - kunokumelana ne-1500 V yombane ophezulu.