PTFE ga-otutu fabric jẹ idurosinsin to 300 ° C, sugbon ni a ina o decomposes ati ki o tu gíga oloro gaasi: hydrogen fluoride (HF) (corrosive, ẹdọforo edema) ati perfluoroisobutylene (PFIB) (colorless, odorless, ~ 10x diẹ majele ti phosgene, ko si antidote). Paapaa monoxide erogba, awọn iṣẹku PFOA, ati awọn dioxins itọpa. Awọn iboju iparada ẹfin deede ko ni doko; lo ohun elo mimi ti ara ẹni (SCBA). Awọn aami aisan le jẹ idaduro.

PTFE ga-otutu fabric (PTFE-coated fiberglass) jẹ apẹrẹ fun alapapo makirowefu nitori pe o ntan microwaves laisi gbigba agbara, koju 260 ° C, ati pe o ni aaye ti kii ṣe igi. Awọn ohun elo pẹlu awọn maati ti o yan makirowefu, awọn beliti gbigbe ẹrọ gbigbẹ ile-iṣẹ, awọn ohun elo riakito fun tito nkan lẹsẹsẹ kemikali, ati awọn laini apo guguru microwave. FDA onipò wa fun ounje olubasọrọ.

PTFE ga-otutu fabric (PTFE-ti a bo gilaasi) ni o ni ko dara Flex resistance nitori awọn fiberglass sobusitireti jẹ inherently brittle. Awọn aṣọ tinrin (0.08mm) ye awọn ọgọọgọrun si ẹgbẹẹgbẹrun awọn ipada; eru onipò (> 0.25mm) kiraki lẹhin dosinni. Satin weave ṣe ju weave pẹtẹlẹ lọ. Fun titẹ atunṣe atunṣe lemọlemọfún, ronu fiimu PTFE ti o lagbara tabi aṣọ ti o da lori aramid dipo.

PTFE ti o ni iwọn otutu ti o ga julọ (figilaasi ti a bo PTFE) ni lilo pupọ ni titẹ sita aṣọ ati awọ fun awọn beliti gbigbe gbigbe ooru (180-230 ° C), awọn ideri tabili titẹ iboju, awọn beliti mesh gbigbẹ, awọn beliti ẹrọ fifẹ, ati fifẹ rola. Ilẹ ti kii ṣe igi ṣe idilọwọ inki / aloku alemora, idinku akoko isinmi mimọ ati imudarasi didara aṣọ. Awọn igbanu ailopin ti ko ni ailopin jẹ ki iṣelọpọ tẹsiwaju.

Aṣọ iwọn otutu giga PTFE (figilaasi ti a bo PTFE) jẹ media àlẹmọ Ere fun awọn ipo to gaju: yiyọ eruku gaasi eefin (simenti, isunmi egbin, awọn igbomikana eedu titi di 260 ° C), isọ omi ibajẹ (acids, alkalis, epo), ounjẹ / ile elegbogi isọdi alaabo, ati Asẹ mimọ HEPA. Ilẹ ti kii ṣe igi ṣe idilọwọ eruku eruku ati gba laaye mimọ. Membrane-laminated grades se aseyori olekenka-kekere itujade.

Aṣọ iwọn otutu giga PTFE n ṣetọju idabobo itanna to dara julọ lati -180 ° C si 260 ° C: resistivity iwọn didun> 10¹³ Ω · cm ni 200 ° C, iduroṣinṣin dielectric nigbagbogbo ni 2.0-2.1. Loke 260°C, PTFE rọra, jẹjẹ loke 327°C, padanu idabobo patapata. Ni isalẹ 0°C, idabobo dara si ṣugbọn ti a bo di brittle. Duro laarin 260 ° C fun iṣẹ ti o gbẹkẹle.

PTFE ga-otutu fabric (PTFE-coated fiberglass) jẹ apẹrẹ fun ounje conveyor beliti nitori awọn oniwe-260 ° C ooru resistance, -70 ° C tutu ni irọrun, ti kii-stick dada, ati FDA ibamu. Awọn ohun elo pataki: awọn adiro ibi-akara (biscuits, akara, pizza), awọn gbigbe ounjẹ sisun, awọn laini itutu suwiti, awọn eefin didi, awọn olutọpa ooru, ati murasilẹ rola. Din egbin ati ninu akoko.

Calendering – titẹ PTFE-ti a bo fabric laarin kikan digi rollers ni 360-380 ° C – bosipo paarọ dada mofoloji, Tu-ini, impermeability, ati darí iṣẹ. O dinku roughness lati Ra 0.5-1.0 μm si <0.05 μm, edidi awọn pinholes, ṣe ilọsiwaju resistance resistance, ṣugbọn dinku agbara omije ati irọrun. Pataki fun awọn laini idasilẹ ati idabobo itanna.

Apẹrẹ weave fiberglass - itele, twill, tabi satin - ni pataki ni ipa lori awọn ohun-ini aṣọ iwọn otutu giga PTFE. Satin weave nfunni ni agbara omije ti o ga julọ (2-3x pẹtẹlẹ) ati irọrun, o dara julọ fun titẹ agbara. Weave pẹtẹlẹ pese iduroṣinṣin onisẹpo ti o dara julọ ati ifaramọ peeli, ti o baamu fun awọn ohun elo aimi. Twill ṣe iwọntunwọnsi gbogbo awọn ohun-ini fun lilo gbogbogbo.

Isọda aṣọ ti aṣọ otutu otutu PTFE ni ipinnu nipasẹ awọn ifosiwewe mẹrin: ilana ti a bo (iwọn patiku 0.15-0.35 μm, viscosity, ri to content), bo & sintering process (afẹfẹ abẹfẹlẹ fun iṣọkan), didara sobusitireti (apẹẹrẹ weave, pre-itọju), ati agbegbe iṣelọpọ (20-25 ° C, <60% RH). Dip + abẹfẹlẹ ni idapo ilana iwọntunwọnsi ilaluja ati dada smoothness.