Nto xov cov neeg ua hauj lwm siv rau fiberglass ntaub ua ntej PTFE txheej yog ib qho tseem ceeb rau qhov kawg PTFE high-temperature daim ntaub. Organosilane coupling cov neeg ua haujlwm tsim cov txuas txuas ntawm cov iav fiber ntau thiab cov organic PTFE, txhawb nqa lub zog tev ntawm <2 N / cm rau 4-8 + N / cm. Kev kho kom zoo kuj tseem txhim kho cov cua sov (260 ° C +), dielectric kev ua tau zoo, thiab tshuaj tiv thaiv. Cov ntaub tsis kho ua rau delamination, bubbling, thiab lub neej ua haujlwm luv.

Warp thiab weft ceev ntawm fiberglass ntaub txiav txim siab PTFE high-temperature ntaub ua haujlwm. Higher density increases tensile strength and surface smoothness but reduces tear strength (inverted U-curve), flexibility, and coating penetration. Optimal density balances penetration, tear resistance, elasticity, and deg finish. Tsawg ceev haum dynamic dabtsi yog khoov; high density rau non-stick thiab rwb thaiv tsev.

PTFE substrate yog inherently ntsev tsuag resistant (dej nqus <0.01%). Txawm li cas los xij, kev ua tau zoo ntawm daim kab xev tag nrho yog nyob ntawm hom nplaum: silicone PSA tiv taus qhov chaw hauv hiav txwv (500-1000h ntsev tshuaj tsuag,> 80% tev tuav); Acrylic PSA ua tsis tiav. Kev kho saum npoo kom zoo, daim ntawv thov tsis muaj npuas, thiab ntug sealing nrog silicone sealant yog qhov tseem ceeb rau kev cia siab rau lub sijhawm ntev ntawm ntug dej hiav txwv thiab cov hlab ntsha.

Calendering - nias PTFE-coated ntaub ntawm rhuab daim iav rollers ntawm 360-380 ° C - ua rau muaj kev hloov pauv ntawm qhov chaw morphology, tso tawm cov khoom, impermeability, thiab kev ua haujlwm txhua yam. Nws txo qhov roughness ntawm Ra 0.5-1.0 μm mus rau <0.05 μm, ntsaws ruaj ruaj pinholes, txhim kho hnav tsis kam, tab sis txo cov kua muag zog thiab yooj. Qhov tseem ceeb rau kev tso tawm liners thiab hluav taws xob rwb thaiv tsev.

Fiberglass weave qauv - dawb, twill, los yog satin - cuam tshuam rau PTFE siab-kub ntaub ntaub. Satin weave muaj lub zog tsim kua muag siab tshaj plaws (2-3x tiaj) thiab yooj, zoo tagnrho rau dynamic dabtsi yog khoov. Plain weave muab qhov zoo tshaj plaws kev ruaj ntseg thiab tev adhesion, haum rau kev siv zoo li qub. Twill sib npaug tag nrho cov khoom siv rau kev siv dav dav.

PTFE fiberglass daim kab xev yuav tsum muaj peb daim ntawv pov thawj kev nyab xeeb tseem ceeb: UL (kev nyab xeeb hluav taws xob thiab nplaim taws), FDA (kev sib cuag zaub mov), thiab ISO 9001: 2015 (kev tswj kom zoo). Cov ntaub ntawv pov thawj muaj kev ua tau zoo, kev ua haujlwm ntev dua, thiab txo tus nqi tag nrho ntawm cov tswv cuab txawm tias tus nqi siab dua. Ib txwm txheeb xyuas cov ntawv pov thawj ncaj qha nrog lub cev tawm.

PTFE conveyor siv (Teflon txoj siv sia) txhim kho cov khoom noj khoom noj los ntawm plaub qhov txiaj ntsig tseem ceeb: kev ua haujlwm tsis zoo (txo cov khib nyiab thiab nplaum), qhov kub siab ntev (-100 ° C txog 260 ° C ua rau ci kom khov), yooj yim tu thiab cov kab mob tsis zoo (tsis muaj qhov ntxeem tau, FDA ua raws), thiab kev txuag kev ua haujlwm ntev (siv lub zog qis). Haum rau cov khoom ci, khoom noj khov, chocolate, thiab cov khoom nplaum.

PTFE high-temperature daim kab xev yog siv nyob rau hauv peb cov ntaub ntawv kho mob tiers: sterilization cov cuab yeej tiv thaiv (autoclave trays, tshav kub-seal ntim), ntsuas nto kev kho mob (tsawg-kev sib txhuam txheej, hluav taws xob rwb thaiv tsev), thiab implantable devices (vascular grafts, sutures). Biocompatibility raug txheeb xyuas los ntawm ISO 10993, thiab FDA 21 CFR 177.1550 tsim cov khoom siv kev nyab xeeb.

Txheej txheej uniformity ntawm PTFE high-temperature npuag yog txiav txim los ntawm plaub yam: txheej formulation (particle loj 0.15-0.35 μm, viscosity, khoom cov ntsiab lus), txheej & sintering txheej txheem (hniav txheej nyiam rau uniformity), substrate zoo (weave qauv, pre-kho), thiab ntau lawm ib puag ncig (<20-25% R,). Dip + hniav ua ke txheej txheem sib npaug nkag mus thiab nto smoothness.

PTFE nto kev kho mob rau kev sib khi adhesion siv ob txoj hauv kev: kub-kub melting (zoo tshaj huab cua tsis kam, 9.5 MPa lub zog nrog coupling tus neeg sawv cev, tab sis tso tawm cov pa roj carbon monoxide) thiab sodium-naphthalene etching (5 MPa tam sim adhesion, nqaim 24-48 teev lub qhov rais, pov tseg txaus ntshai). Xaiv raws li kev tswj hwm ib puag ncig thiab lub sijhawm ntev vs.