Kev kho deg ntawm Polytetrafluoroethylene (PTFE)

Raws li cov kws tshaj lij kev tsim khoom ntawm PTFE high-temperature fabrics, Jiangsu Aokai Cov Khoom Tshiab yuav qhia txog kev kho deg ntawm polytetrafluoroethylene (PTFE).

PTFE nta zoo heev thiab kub tsis kam, zoo heev tshuaj corrosion kuj, tsis tshua muaj kev sib txhuam coefficient thiab nws tus kheej-lubricating zog. Nws yog dav siv hauv electronics, machinery, chemical khoom, aerospace, biomedicine thiab lwm yam kev lag luam, tau txais lub koob npe nrov ntawm 'King of Plastics' . Txawm li cas los xij, vim nws cov tshuaj inertness thiab tsis tshua muaj zog saum npoo, PTFE nyuaj rau kev sib txuas nrog lwm cov ntaub ntawv, uas txwv nws cov ntawv thov rau qee qhov. Txhawm rau txhim kho qhov adhesion ntawm PTFE thiab ntau yam ntaub ntawv, cov txheej txheem feem ntau yog siv los txhim kho cov dej num ntawm PTFE. Rau cov khoom sib txawv, Aokai Cov Khoom Tshiab feem ntau siv cov kev hloov kho PTFE hauv qab no.

1. Kev kho mob ntub dej

Kev kho tshuaj sodium-naphthalene  yog ib txoj hauv kev zoo rau PTFE nto hloov kho. Nrog cov txheej txheem yooj yim thiab tus nqi qis, nws yog qhov kev xaiv zoo tshaj plaws hauv kev tsim khoom ntawm Aokai New Materials 'PTFE Hoobkas.

Sodium-naphthalene kev kho mob feem ntau yog siv cov tshuaj etching los ua tshuaj lom neeg nrog PTFE, tshem qee cov fluorine atoms ntawm qhov chaw. Qhov no tawm hauv cov txheej txheem carbonized thiab qhia cov pawg polar xws li pawg hydroxyl, pawg carbonyl thiab cov nyiaj tsis txaus ntseeg. Cov pawg polar no nce lub zog saum npoo ntawm cov polymer, txo qhov kev sib cuag ntawm lub kaum sab xis thiab txhim kho wettability, yog li tig PTFE los ntawm non-bondable rau hauv bondable.

2. Mechanochemical Bonding Method

Thaum cov polymers raug rau sab nraud quab yuam (piv txwv li, crushing, sib tsoo, kev sib txhuam, thiab lwm yam), macromolecular chains tawg thiab raug tshuaj lom neeg cov tshuaj tiv thaiv, xws li mechanodegradation, mechanochemical crosslinking, mechanochemical grafting, block copolymerization thiab stress-activated polymerization. Cov no yog hu ua polymer mechanochemical cov tshuaj tiv thaiv.

Hauv kev sib koom ua ke, cov nplaum-coated polymer nto yog rubbed. Los ntawm kev ua haujlwm mechanochemical, cov khoom siv hluav taws xob tau dhau los ua mechanodegradation los tsim cov macromolecular dawb radicals, uas tom qab ntawd tsim covalent bonds nrog cov nplaum molecules, tsim kom muaj kev sib raug zoo sib txuas thiab txhim kho kev sib koom ua ke ntawm kev sib koom ua ke.

3. Txoj Kev Kub Kub Kub Kub

Lub hauv paus ntsiab lus ntawm kev hloov kho PTFE nto ntawm qhov kub-kub melting yog: ntawm qhov kub thiab txias, lub crystalline morphology ntawm PTFE nto yog hloov, thiab high-surface-zog, yooj yim bonded ntaub ntawv xws li SiO₂ thiab Al hmoov yog embedded. Tom qab txias, ib txheej hloov uas muaj cov ntaub ntawv bondable rau ntawm PTFE nto. Txij li cov molecules ntawm cov ntaub ntawv bondable tau nkag mus rau hauv cov txheej txheem molecular ntawm PTFE, kev rhuav tshem daim ntawv cog lus yuav tsum muaj kev puas tsuaj rau lub cev, uas ua rau muaj kev sib raug zoo siab.

4. Txoj Kev Radiation

PTFE muab tso rau hauv reactive polymerizable monomers xws li styrene, fumaric acid, methacrylates thiab lwm yam, ces irradiated nrog Co-60 . Qhov no ua rau cov tshuaj graft polymerization ntawm cov monomers mus rau PTFE nto, tsim cov graft polymer txheej uas yooj yim rau daim ntawv cog lus. Grafting kuj roughens saum npoo, ua rau thaj chaw sib txuas thiab txhim kho kev sib raug zoo.

5. Plasma Kho Tshuab

Kev kho ntshav ntshav yog ib qho kev tsim kho sai tshaj plaws rau PTFE nto hloov kho nyob rau hauv xyoo tas los no.

Lub ntsiab lus ntawm cov cuab yeej no yog muab cov qauv tso rau hauv cov cuab yeej kho ntshav ntshav siab, qhov twg ion foob pob lossis implantation rhuav tshem cov ntawv cog lus molecular lossis qhia cov pab pawg ua haujlwm ntawm cov khoom siv polymer, ua kom lub ntsej muag kom ua tiav kev hloov kho. Ions tuaj yeem yog cov roj ntsha tsis muaj zog, cov roj siv tshuaj lom neeg lossis cov khoom siv hlau. Bombardment nrog inert gases tuaj yeem hloov kho cov qauv saum npoo ntawm cov polymer.

Cov ntaub ntawv saum toj no yog muab los ntawm Jiangsu Aokai New Materials Technology Co., Ltd.

Rau cov ncauj lus kom ntxaws, daim ntawv thov scenarios thiab customized kev daws teeb meem ntawm peb cov khoom tag nrho - suav nrog PTFE high-temperature ntaub, PTFE high-temperature tape, PTFE high-temperature mesh belt, seamless bets rau bonding machines, one-sided PTFE fabric, high-temperature resistant conveyor bets, high-temperature cloth, high-temperature mesh belt:

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Peb ib txwm txhawb nqa lub tswv yim kev pabcuam ntawm tus nqi tsim nyog, kev tshaj lij thiab kev ncaj ncees, thiab tau mob siab rau muab kev daws teeb meem thiab kev pabcuam rau koj!