Kungani i-PTFE High-Temperature Fabric Flame-Resistant ku-Open Fire? Ithini I-Microscopic I-Flame-Retardant Mechanism?

I-Jiangsu Aokai New Materials, umkhiqizi ohamba phambili wezindwangu ze-PTFE ezishisa kakhulu, uyachaza:

Indwangu ye-PTFE enezinga eliphezulu lokushisa imelana kakhulu nelangabi emlilweni ovulekile, ikakhulukazi ngenxa yesakhiwo samangqamuzana kanye nendlela yokubola okushisayo yezinto zayo eziyinhloko — i-polytetrafluoroethylene (PTFE). Ukuncipha kwayo kwelangabi akuncikile ezintweni ezivimbela amalangabi engeziwe njengezinto ezivamile, kodwa kusukela ekungangeni kwayo kwamakhemikhali okungokwemvelo kanye nokuziphatha okuyingqayizivele kokubola.

Lokhu kungaqondwa kusuka emazingeni amathathu:

1. 'Izikhali' ze-Molecular Eqinile: Amandla Ebhondi Ephakeme Nosendlalelo Sokuvikela

·  Amabhondi e-carbon-fluorine (C–F) aqinile : Ama-molecule e-PTFE ahlanganisa umgogodla weketango le-carbon elizungezwe ama-athomu e-fluorine. Ibhondi ye-C–F ingelinye lamabhondi amakhemikhali aqine kakhulu aziwayo, anamandla ebhondi acishe abe ngu-485 kJ/mol. Amandla aphezulu kakhulu (izinga lokushisa) liyadingeka ukuze aliphule, enze umugqa wokuqala wokuzivikela.

·  Umthelela wokuvikela wama-athomu e-fluorine : Ama-athomu efluorine amakhulu, anecala elibi aminyene, asebenza njengesivikelo esiwugqinsi esivale ngokugcwele iketango lekhabhoni elingaphakathi. Lesi sithiyo sivimbela amakhemikhali amaningi (okuhlanganisa nomoya-mpilo) ukuthi angangeni ku-carbon chain futhi sivimbela kakhulu ukusabela kwe-oxidation okudingekile ekushiseni.

2. Ukubola Okungashi: Ukukhipha I-polymerization Esikhundleni Sokushisa

·  Ukwehlukana kweketango ngaphambi kwe-oxidation : Ngaphansi kwamazinga okushisa aphezulu, amabhondi e-carbon-carbon (C–C) abuthaka kancane kakhulu ngaphakathi kwekhefu le-PTFE ngaphambi kwamabhondi e-C–F. Amaketanga amangqamuzana aqala ukubola ngaphambi kokuba umoya-mpilo uhlanganyele ekuphenduleni.

·  Umkhiqizo oyinhloko i-monomer : Lapho iphuka, i-PTFE ikakhulukazi idlula i-depolymerization , ikhulula ama-monomers e-tetrafluoroethylene (C₂F₄) kusukela ekugcineni kweketango. Izinto ezisetshenziswayo ziyahwamuka kunokuba zibe nokushiswa okunamandla okukhulula inani elikhulu lokushisa namagesi avuthayo.

·  Umthelela wesithiyo sesigaba segesi : Igesi engu-C₂F₄ evela ku-depolymerization iminyene kunomoya futhi ihlala eduze nendawo, yakhe ungqimba lwegesi lwesikhashana oluthambisa ukugcwala komoyampilo futhi lucindezele nakakhulu ukusha.

3. Ukusekela Iqhaza Le-Glass Fiber Substrate

Indwangu ye-PTFE enezinga eliphezulu lokushisa iyinhlanganisela eyenziwe ngokunamathisela i-PTFE phezu kwendwangu ye-fiber yengilazi. I-Glass fiber ngokwayo iyimpahla engashi. Njengohlaka lwamathambo esakhiwo, luqinisekisa ukuthi noma ngabe ungqimba lwe-PTFE olungaphezulu ludliwe ngokuphelele ngaphansi kokushisa okukhulu, okubalulekile akuncibiliki noma kuconse njengepulasitiki ehlanzekile, igcina ubuqotho besakhiwo futhi ivimbele ukubhebhetheka komlilo.

Kufanele kugcizelelwe ukuthi i-PTFE ayinqamuki ilangabi , ayishisi ngokuphelele.Lapho ishiswa ngaphezu kwendawo yayo yokuncibilika (327°C) futhi ngokuqhubekayo, ibola futhi ikhiphe intuthu enobuthi. Ivamise ukumelana namazinga okushisa esikhathi eside afika ku-260°C futhi ihlala izinzile isikhashana ku-300–360°C.

Ukubola emlilweni ovulekile : Uma kuvezwe ngokuqondile emlilweni ovulekile (ngaphezulu kakhulu kwezinga lawo lokushisa lokubola), isendlalelo se-PTFE siyabola, kodwa inqubo ayikhiqizi ukushisa okwanele noma izinto ezivuthayo ukuze kuqhubeke ukuvutha. Kuhlanganiswe nokwesekwa kwefiber yengilazi, amalangabi awakwazi ukusabalala ngokuqhubekayo.

Kafushane, indwangu ye-PTFE yokushisa ephezulu imelana nelangabi ngenxa yokuthi impahla yayo eyinhloko i-PTFE iklanyelwe ukumelana nokusha .Amabhondi amakhemikhali anamandla amakhulu, izindlela ezihlukile zokubola, kanye nohlaka lwamathambo e-glass fiber angashi ndawonye akha umgoqo oqinile ongashi.

Ulwazi olungenhla lunikezwe i- Jiangsu Aokai New Materials Technology Co., Ltd.

Ukuze uthole imingcele enemininingwane, izimo zohlelo lokusebenza nezixazululo ezenziwe ngokwezifiso zohlu lwethu olugcwele lomkhiqizo - kufaka phakathi indwangu ye-PTFE ephezulu lokushisa, i-PTFE high-temperature tape, ibhande le-PTFE high-temperature mesh, ibhande elingenamthungo lemishini yokubopha, indwangu ye-PTFE enohlangothi olulodwa, ibhande elivikela ukushisa eliphezulu kanye neminye imikhiqizo ehlobene ne-fiber

●  UMnu. Guo: 18944819998

●  UMnu. Liu: 13705266308

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