Guriga »
Wararka »
Dharka Dahaarka leh ee PTFE ?
Waa maxay faraqa u dhexeeya emulsion PTFE oo ay soo saaraan habab kala duwan oo polymerization (polymerization hakinta iyo kala firdhisanaanta polymerization)
Waa maxay farqiga u dhexeeya emulsions PTFE ee ay soo saaraan hababka kala duwan ee polymerization (polymerization hakinta iyo polymerization kala firdhiyey)?
Horudhac uu sameeyay a Teflon Soosaaraha Heerkulka Sare ee Wershadda Farqiga u dhexeeya Emulsions PTFE ee ay soo saaraan Nidaamyada Polymerization-ka ee kala duwan (Polymerization Suspension and Dispersion Polymerization)
I. Cadaynta hordhaca ah ee fikradaha
Dhaqanka warshadaha, polymerization hakinta si toos ah uma soo saari karto emulsion PTFE. Emulsion dhab ah PTFE (kala firidhsan) waxa lagu soo saaraa oo kaliya by polymerization kala firdhiso (taas oo asal ahaan emulsion polymerization). Jiangsu Teflon Heerkulka Sare ee Fabric Manufacturer ayaa xusaysa in ganacsi ahaan la heli karo 'habka joojinta PTFE emulsion' dhab ahaantii waa ganaax biyo-mareen ah oo ay sameeyeen si farsamaysan u kala firdhiya sukin-polymerized resin micropowders. Labadu waxay ku kala duwan yihiin asal ahaan, laga bilaabo dabeecadda walxaha ilaa codsiyada isticmaalka dhamaadka.
II. Polymerization Dispersion: Primary PTFE Emulsion
1. Qayb Mofooloji iyo Xasilooni
Qaybaha ayaa si fiican u qaabaysan, oo ay sameeyeen isku-darka qaybaha aasaasiga ah (0.05-0.5 μm) oo galay qaybo sare oo cabbirkoodu yahay 0.1-0.3 μm iyo qaybinta cabbir aad u cidhiidhi ah. Xasilooni waxaa bixiya surfactants perfluorinated (PFOA beddelka) oo lagu daray inta lagu jiro polymerization. Nidaamka kolloidalku wuxuu ahaan karaa mid xasiloon iyada oo aan la kala saarin muddo sanado ah wuxuuna muujiyaa iska caabin wanaagsan oo u ah xiirid farsamo.
Miisaanka kelliyadu aad buu u sarreeyaa (ilaa dhowr milyan), oo leh crystallinity ka badan 94% iyo awood fibrillation aad u xooggan. Daahan ka dib, heerkulka sare ee sintering at qiyaastii 380 ° C ayaa loo baahan yahay, inta lagu guda jiro taas oo qayb ka mid ah isku darka galay filim joogto ah, cufan, iyo adag oo leh sifooyin anti-daxal oo aad u fiican.
3. Nidaaminta Caadiga ah iyo Codsiyada
Habayntu waxay ku kooban tahay koollada dibadda, impregnation, ama dahaarka oo ay ku xigto sintering. Codsiyada caadiga ah waxaa ka mid ah dahaarka karinta ee aan dhegta lahayn, impregnation ee xuubka qaab dhismeedka fiberglass, xuubka ePTFE microporous (neefsashada iyo biyuhu-celinta), iyo filimada capacitor-dhamaadka sare.
III. Susension Polymerization Micropowders: Suspension Aqueous (Inta badan waxaa lagu calaamadiyaa sida Emulsion)
1. Qayb Mofooloji iyo Xasilooni
Sida lagu xusay Jiangsu Teflon Soosaaraha Heerkulka Sare ee Fabric: Qaybaha waxaa lagu soo saaraa shiidi iyo burburinta pellets hakinta-polymerized, taasoo keentay qaabab aan caadi ahayn oo polyhedral ah oo leh cabbirro qaybo u dhexeeya 2 ilaa 20 μm iyo qaybin ballaaran. Nidaamku waa mid aan degganayn oo aad ugu nugul qallafsanaanta iyo qallafsanaanta. Surfactants iyo dhumucyada caadiga ah sida xanthan xanjo iyo ethers cellulose waa in lagu daraa sidimentation dib u dhac ah, iyo walaaqin dhamaystiran ayaa loo baahan yahay kahor isticmaalka.
Miisaanka molecular waxaa lagu hagaajin karaa ilaa xad aad u hooseeya (toban kun ilaa boqollaal kun), oo leh jajab weyn iyo awoodda fibrillada oo aad u liidata. Dahaarka ka dib, kaliya qalajinta jawiga ama heerkulka hooseeya ayaa loo baahan yahay si loo sameeyo lakabka saliidda qalalan; lama dhex gelin karo filim.
3. Nidaaminta Caadiga ah iyo Codsiyada
Waxaa si toos ah loogu dari karaa qaab-dhismeedka ama lagu dabaqi karaa dahaarka iyo qallajinta hawada. Codsiyada waxaa ka mid ah waxyaabaha lagu daro saliidaha warshadaha, caag iyo caagag caag ah oo sii daaya caaryada, ka hortagga xirashada iyo walxaha sibidhka ee khadadka iyo dahaarka, iyo dhamaystirka biyaha celinaya ee dunta.
IV. Tixraaca Degdegga ah: Farqiga Muhiimka ah
Qaybta Asal ahaan
Qaybaha polymerization-ka ee kala firdhiya: laga sameeyay goobta dhexdeeda qaabab wareegsan iyadoo loo marayo polymerization kala firdhisan;
Qaybaha habka hakinta: dhulka laga soo bilaabo xabagta bulk galay granules aan joogto ahayn.
polymerization-ka kala firdhisan: dahaarka aan dhejiska lahayn, dahaarka ka-hortagga daxalka, filimada shaqada;
Dareeraha laalista: wakiilada is jiid jiidka, wakiilada sii daynta, waxyaalaha lagu daro xidhashada u adkaysta ee khadadka.
Gabagabo ka timid Jiangsu Teflon Soosaaraha Heerkulka Sare ee Fabric: Haddii codsigaagu u baahan yahay impregnation, sintering daahan, ama samaynta filim, waa inaad doorataa emulsion-ka PTFE aasaasiga ah oo ay soo saartay polymerization kala firdhiyey. Haddii aad u baahan tahay oo kaliya inaad hagaajiso saliidda, guryaha la sii daayo, ama iska caabbinta naaxinta iyada oo aan la isku dhejin, ka dibna ka joojinta aqueous ee ka sameysan micropowder-ka-joojinta-polymerized ayaa ah ikhtiyaar ku habboon.
Haddii aad jeclaan lahayd inaad wax badan ka ogaato faahfaahinta faahfaahsan, xaaladaha codsiga, iyo xalalka habaynta ee noocyada kala duwan ee alaabtayada - oo ay ku jiraan Teflon dhar heerkul sare ah, cajalado heerkul sare ah oo Teflon ah, suumanka mesh heerkul sarreeya ee Teflon, suumanka tolitaanka-mashiinka suumanka-la'aanta ah, suunka hal dhinac leh ee PTtempera, dharka sare ee PTFE. fiberglass-fadlan waxaad xor u tahay inaad nagala soo xiriirto waxyaabaha soo socda:
