PTFE akwa na-ekpo ọkụ (fiberglass mkpuchi PTFE) bụ mgbasa ozi nzacha adịchaghị maka ọnọdụ dị oke egwu: iwepụ uzuzu gas (ciment, mkpofu ọkụ, igwe ọkụ ọkụ ruo 260 Celsius C), nzacha mmiri mmiri na-emebi emebi (acids, alkalis, mmanụ), nri / ọgwụ sterile filtration, na HEPA. Igwe anaghị agba nchara na-egbochi ime uzuzu ma na-enye ohere ihicha ngwa ngwa. Ọkara akara nke membrane na-enweta ihe ọkụkụ dị ala.

PTFE akwa okpomọkụ dị elu na-ejigide mkpuchi ọkụ eletrik dị mma site na -180 ° C ruo 260 ° C: resistivity olu> 10¹³ Ω · cm na 200 ° C, dielectric kwụsiri ike na 2.0-2.1. N'elu 260°C, PTFE na-adị nro, na-emebi n'elu 327°C, na-efunahụ mkpuchi na-adịgide adịgide. N'okpuru 0 Celsius C, mkpuchi na-akawanye mma mana mkpuchi na-agbaji. Nọrọ n'ime 260 Celsius maka ịrụ ọrụ a pụrụ ịdabere na ya.

Elu emecha mmadụ etinyere na fiberglass ákwà tupu PTFE mkpuchi dị oké egwu maka ikpeazụ PTFE elu-okpomọkụ ákwà ịrụ ọrụ. Ndị na-ahụ maka njikọta Organosilane na-emepụta àkwà mmiri molekụla n'etiti eriri iko inorganic na PTFE organic, na-akwalite ike bee site na <2 N/cm ruo 4-8+ N/cm. Ọgwụgwọ nke ọma na-emekwa ka nguzogide okpomọkụ (260°C+), ịrụ ọrụ dielectric, na nguzogide kemịkal. Akwa akwa na-adịghị edozi na-eduga na delamination, na-agbapụta, na obere ọrụ ndụ.

Ụkpụrụ ịkpa ákwà fiberglass - larịị, twill, ma ọ bụ satin - na-emetụta PTFE akwa akwa na-ekpo ọkụ nke ukwuu. Satin weave na-enye ike anya mmiri kachasị elu (2-3x larịị) na mgbanwe, dị mma maka ịgbagọ ike. Akpara larịị na-enye nkwụsi ike akụkụ kachasị mma yana nrapado bee, dabara maka ngwa kwụ ọtọ. Twill na-edozi akụrụngwa niile maka ojiji izugbe.

Mkpuchi uniformity nke PTFE elu-okpomọkụ ákwà kpebisiri ike site anọ ihe: mkpuchi usoro (otuba uru size 0.15-0.35 μm, viscosity, siri ike ọdịnaya), mkpuchi & sintering usoro (agụba mkpuchi mmasị maka uniformity), mkpụrụ àgwà (akpa ụkpụrụ, tupu ọgwụgwọ), na mmepụta gburugburu ebe obibi (20-25 ° C, <60% RH). Dip + agụba jikọtara usoro na-edozi ntinye na ire ụtọ elu.

Nhicha na mmezi nke ọma na-agbatị ndụ PTFE akwa okpomọkụ dị elu. Dị ọcha mgbe ejiri ya na mgbe ọ dị jụụ. Jiri brush dị nro, ihe na-anọpụ iche, ma ọ bụ mmanya maka ntụpọ. Ejila acid/alkalis siri ike, ịcha ọcha, ma ọ bụ nchara ígwè. Mmanya mmanụ silicone mgbe niile na-ebelata iyi. Soro ntuziaka ndị a iji gbochie mmebi mkpuchi.

PTFE akwa okpomọkụ dị elu na akwa silicone na-eji akwa fiberglass dị ka ntọala ma dị iche na ihe mkpuchi (PTFE resin vs silicone roba). PTFE karịrị akarị na enweghị osisi, eyi nguzogide, na nguzogide kemịkalụ ruo 260°C. Ngwongwo silicone na-enye mgbanwe dị elu, mkpuchi ọkụ, na nguzogide ọkụ (ruo 230 Celsius). Họrọ dabere na mkpa gị.

PTFE akwa okpomọkụ dị elu na-enye nguzogide kemịkalụ pụrụ iche, na-eguzogide acid siri ike, alkalis, ihe mgbaze organic, na gas na-emebi emebi. Edemede a na-akọwapụta ihe ndị na-eguzogide ọgwụ, oke (ọla alkali gbazere, ihe ndị na-emepụta fluorinating siri ike), yana ihe ndị bụ isi dị ka okpomọkụ, itinye uche na nrụgide ọrụ.

PTFE impregnation ejedebeghị na akwa fiberglass. Isiokwu a na-ewebata ihe ndị ọzọ 7 - aramid, carbon fiber, PBI, metal porous, graphite, asbestos (phased out), na ceramic fillers - na njirimara usoro ha, uru, njedebe, na ngwa isi.

Isiokwu a na-akọwa ihe kpatara akwa fiberglass na-enweghị alkali bụ ọkacha mmasị maka akwa akwa okpomọkụ PTFE. Ọ na-ekpuchi njikọ kemịkalụ site na ndị na-ahụ maka njikọta silane na ihe ndị bụ isi anụ ahụ dị ka nkwụsi ike okpomọkụ, nkwụsi ike akụkụ, na nguzogide corrosion - na-eme ka arụmọrụ na-adịte aka na gburugburu ebe siri ike.