PTFE high-temperature npuag (PTFE-coated fiberglass) tsis zoo flex kuj vim hais tias cov fiberglass substrate yog inherently brittle. Cov ntaub nyias nyias (0.08mm) muaj sia nyob ntau pua mus rau txhiab folds; hnyav qib (> 0.25mm) tawg tom qab kaum ob. Satin weave outperforms dawb weave. Rau kev sib txuas txuas ntxiv txuas ntxiv, xav txog cov khoom PTFE zaj duab xis lossis aramid-raws li ntaub hloov.

PTFE high-temperature npuag (PTFE-coated fiberglass) yog dav siv nyob rau hauv textile printing thiab dyeing rau tshav kub hloov luam ntawv siv (180-230 ° C), tshuaj ntsuam luam ntawv lub rooj npog, ziab mesh siv, fusing tshuab siv, thiab cov menyuam wrapping. Nws tsis yog-stick nto tiv thaiv tus number case / nplaum residue, txo kev tu ncua sij hawm thiab txhim kho cov ntaub zoo. Seamless txoj siv sia uas tsis muaj qhov kawg ua rau kev tsim khoom tas mus li.

PTFE high-temperature npuag (PTFE-coated fiberglass) yog cov khoom siv lim dej zoo tshaj plaws rau cov xwm txheej huab cua: tshem tawm cov pa roj plua plav (cement, khib nyiab incineration, thee boilers mus txog 260 ° C), corrosive kua pom (acids, alkalis, roj), zaub mov / tshuaj sterile filtration, thiab lim. Non-stick nto tiv thaiv plua plav caking thiab tso cai rau kev ntxuav yooj yim. Membrane-laminated qib ua tiav cov pa hluav taws xob tsawg.

PTFE high-temperature ntaub tuav zoo heev hluav taws xob rwb thaiv tsev los ntawm -180 ° C mus rau 260 ° C: ntim resistivity > 10¹³ Ω·cm ntawm 200 ° C, dielectric qhov ruaj khov ntawm 2.0-2.1. Tshaj 260 ° C, PTFE softens, decomposes saum 327 ° C, poob rwb thaiv tsev mus tas li. Hauv qab 0 ° C, rwb thaiv tsev zoo dua, tab sis txheej yuav nkig. Nyob rau hauv 260 ° C rau kev txhim khu kev qha.

PTFE high-temperature npuag (PTFE-coated fiberglass) yog zoo tagnrho rau cov khoom noj khoom haus conveyor siv vim nws 260 ° C tshav kub tsis kam, -70 ° C txias yooj, tsis-stick nto, thiab FDA ua raws. Daim ntawv thov tseem ceeb: bakery ncu (biscuits, qhob cij, pizza), kib zaub mov conveyors, khoom qab zib txias kab, freezing tunnels, tshav kub sealers, thiab cov menyuam qhwv. Txo cov khib nyiab thiab ntxuav lub sijhawm.

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.

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.

PTFE high-temperature npuag thiab silicone npuag ob leeg siv fiberglass ntaub los ua lub hauv paus tab sis txawv ntawm cov khoom siv txheej (PTFE resin vs silicone roj hmab). PTFE ua tau zoo nyob rau hauv tsis-stick, hnav tsis kam, thiab tshuaj tiv thaiv mus txog 260 ° C. Silicone npuag muaj qhov ua tau zoo dua qub, rwb thaiv tsev hluav taws xob, thiab hluav taws kub (txog 230 ° C). Xaiv raws li koj qhov tseem ceeb.

PTFE high-temperature npuag (PTFE membrane khoom) yog qhov kev xaiv zoo tshaj plaws rau tensile architecture. Cov txiaj ntsig tseem ceeb: 30+ lub neej nyob sab nraum zoov, qhov chaw tu tus kheej (cov dej nag ntxuav cov av), muag lub teeb kis tau tus mob (6-13%), Chav Kawm A hluav taws kub, thiab lub zog zoo li steel ntawm qis dua 1.5 kg / m². Siv nyob rau hauv chaw ntau pob, tshav dav hlau, thiab lub tsev iconic thoob ntiaj teb.

PTFE high-temperature npuag muaj cov tshuaj tiv thaiv tshwj xeeb, tiv taus cov kua qaub, alkalis, cov kuab tshuaj organic, thiab corrosive gases. Tsab ntawv xov xwm no qhia txog nws cov tshuaj tiv thaiv, kev txwv (molten alkali hlau, muaj zog fluorinating cov neeg ua haujlwm), thiab cov ntsiab lus tseem ceeb xws li kub, concentration, thiab kev ntxhov siab.