PTFE high-temperature jira rinodzikama kusvika ku300°C, asi mumoto rinoora uye rinobudisa magasi ane muchetura: hydrogen fluoride (HF) (corrosive, pulmonary edema) uye perfluoroisobutylene (PFIB) (isina ruvara, isinganhuhwi, ~10x ine muchetura kupfuura phosgene, nododo). Zvakare kabhoni monoxide, PFOA zvakasara, uye tsvaga dioxins. Masikisi ehutsi akajairika haashande; shandisa self-contained breathing apparatus (SCBA). Zviratidzo zvinogona kunonoka.

PTFE high-temperature fabric (PTFE-coated fiberglass) yakanakira microwave kudziyisa nekuti inofambisa microwaves isingatore simba, inopikisa 260°C, uye ine nzvimbo isina tsvimbo. Zvishandiso zvinosanganisira ma microwave ekubikira mabhandi, mabhandi ekuomesera emuindasitiri, mareactor linings ekugayiwa kwemakemikari, uye microwave popcorn bag liner. FDA mamakisi anowanikwa kune chikafu chekubata.

PTFE high-temperature jira (PTFE-yakavharidzirwa fiberglass) haina kusimba kuchinjika nekuti iyo fiberglass substrate inogadzika brittle. Machira matete (0.08mm) anopona mazana kusvika kuzviuru zvemapete; magiredhi anorema (> 0.25mm) anotsemuka mushure memakumi mazhinji. Satin weave inodarika plain weave. Kuti urambe uchipeta, funga yakasimba PTFE firimu kana aramid-based fabric panzvimbo.

PTFE high-temperature fabric (PTFE-coated fiberglass) inoshandiswa zvakanyanya mumucheka kudhinda uye kudhayira kupisa kupisa mabhandi ekudhinda (180-230 ° C), zvivharo zvetafura yekudhinda, kuomesa mesh mabhandi, fusing machine belt, uye roller wrapping. Nzvimbo yayo isina tsvimbo inodzivirira inki / inonamatira zvakasara, kuderedza kuchenesa nguva yekuchenesa nekuvandudza kunaka kwejira. Mabhandi asingagumi asingagumi anogonesa kuenderera mberi kwekugadzirwa.

PTFE high-temperature fabric (PTFE-coated fiberglass) is a premium filter media for a extreme conditions: flue gas dust kubvisa (simende, tsvina yekupisa, marasha boilers kusvika 260 ° C), corrosive liquid filtration (acids, alkalis, oils), chikafu/mishonga inosvibisa filtration, uye HEPA cleanroom filters. Isiri-tsvimbo inodzivirira guruva caking uye inobvumira kuchenesa nyore. Membrane-laminated mamakisi anowana ultra-low emissions.

PTFE high-temperature jira rinochengetedza yakanakisa magetsi ekudzivirira kubva -180°C kusvika 260°C: volume resistivity >10¹³ Ω·cm pa200°C, dielectric inogara yakagadzikana pa2.0-2.1. Pamusoro pe260 ° C, PTFE inopfava, inoora pamusoro pe327 ° C, ichirasikirwa nekudzivirira zvachose. Pazasi pe 0°C, kuvharisa kunonatsiridza asi kupfeka kunoita brittle. Gara mukati me260 ° C kuitira kushanda kwakavimbika.

PTFE high-temperature fabric (PTFE-coated fiberglass) yakanakira mabhandi ekutakura chikafu nekuda kwekupisa kwayo 260°C, -70°C kutonhora kuchinjika, kusinga tsvinda, uye kutevedzera FDA. Mashandisirwo akakosha: maovheni ekubheka (mabhisikiti, chingwa, pitsa), kutakura chikafu chakakangwa, mitsara yekutonhodza maswiti, tunnel dzinoomesa nechando, zvivhariso zvekupisa, uye kuputira. Inoderedza tsvina uye nguva yekuchenesa.

Calendering - kudzvanya PTFE-yakavharwa jira pakati peanopisa girazi rollers pa360-380 ° C - zvinonyanya kushandura morphology yepasi, kuburitsa zvimiro, kusamira, uye mashandiro emuchina. Iyo inoderedza roughness kubva kuRa 0.5-1.0 μm kusvika ku <0.05 μm, inovhara pinholes, inovandudza kupfeka kusagadzikana, asi inoderedza simba rekubvarura uye kushanduka. Zvakakosha pakusunungura liners uye magetsi ekudzivirira.

Fiberglass weave pattern - plain, twill, kana satin - inonyanya kukanganisa PTFE high-temperature machira emhando. Satin weave inopa simba repamusoro rekubvarura (2-3x bani) uye kuchinjika, yakanakira kukotama. Plain weave inopa yakanakisa dimensional kugadzikana uye peel adhesion, inokodzera static application. Twill inoenzanisa zvivakwa zvese zvekushandisa zvakajairika.

Coating uniformity yePTFE high-temperature jira inotarirwa nezvinhu zvina: coating formulation (particle size 0.15-0.35 μm, viscosity, solid content), coating & sintering process (blade coating inosarudzwa kuti ifanane), substrate quality (weave pattern, pre-treatment), uye nzvimbo yekugadzira (20-25% R <60). Dip + blade yakasanganiswa maitiro anoyera kupinda uye kutsetseka kwepamusoro.