PTFE akwa okpomọkụ dị elu nwere ọnụọgụ nke mgbasawanye ọkụ (CTE) nke 30-60 ppm / ° C (warp / weft) - dị elu karịa fiberglass naanị mana ọ dị ala karịa PTFE dị ọcha (100-200 ppm / ° C). PTFE na-enweta mgbanwe olu ngwa ngwa (1-2%) na ntụgharị 19°C na 30°C. Ka ịzenarị mkpọchi, dọkasịa, na delamination: mkpochapụ imewe maka mgbasawanye n'efu, zere esemokwu site na ọnọdụ mgbanwe nke oge, jiri ihe nrụgide akpaaka na eriri ebu, ma tinye ihe mgbochi mgbochi. Nleba anya mgbe nile maka mmiri oyi dị mkpa.

PTFE akwa akwa akwa akwa akwa akwa akwa na-enye uru anọ dị mkpa: arụmọrụ na-adịghị arụ ọrụ (ọ dịghị mmanụ ma ọ bụ ntụ ọka dị mkpa, pastries dị nro na-ahapụ nke ọma), okpomọkụ dị ukwuu (-70 ° C ruo 260 ° C, nchekwa maka oven na friza), reusability (ọtụtụ puku cycles, dị mfe ihicha), na ọbụna okpomọkụ conduction (na-egbochi ọkụ, nguzozi browning). Nri na-akwado FDA, ha karịrị akwụkwọ akpụkpọ anụ ma na-eme ka silicone mats na-enyefe okpomọkụ ka mma na ọdịdị elu dị mma.

PTFE elu-okpomọkụ ákwà dị oké mkpa na uwe interlining ụlọ ọrụ. Ngwa ndị dị mkpa: eriri na-ebugharị na-enweghị njedebe maka igwe fusing na-aga n'ihu (na-egbochi ịrapagidesi ike na-ekpo ọkụ na-ekpo ọkụ, nnyefe na-enweghị wrinkle), mkpuchi na-enweghị ihe mkpuchi na akwa akwa maka ikpo ọkụ dị larịị (na-echebe platens pụọ na nrịanrịa nke ntanye), eriri eriri maka ntụpọ ntụpọ / ntụ ntụ ntụ (na-anọgide na-eme ka ihe ntanye na-ekpo ọkụ na-ekpuchi akpụkpọ ụkwụ n'oge akọrọ akpụkpọ ụkwụ). Ọkpụrụkpụ sitere na 0.13mm (ihe mkpuchi ọkụ) ruo 0.55mm (eriri ebufe ọrụ dị arọ).

Fiberglass ákwà thermal shrinkage bụ isi ihe na-akpata enweghị nkwụsi ike nke teepu PTFE. Na PTFE sintering okpomọkụ (360-400°C), a na-ahapụ nrụgide ịkwa akwa. Ọ bụrụ na ejideghị ya, akwa na-adaba; Ọ bụrụ na ejidere ya, a na-ekpochi nrụgide latent, na-eme ka ọ daa mbà n'oge ọgwụgwọ nrapado (150-200 Celsius) na ikpo ọkụ njedebe. Ngwọta: jiri fiberglass nke etinyere tupu ọkụ na <0.5% shrinkage na 400 ° C, na-ewepụ nrụgide fọdụrụnụ tupu mkpuchi.

PTFE akwa na-ekpo ọkụ (fiberglass mkpuchi PTFE) na-enye nguzogide kemịkalụ pụrụ iche, na-eguzogide acids gbanyere mkpọrọgwụ (gụnyere aqua regia), alkalis siri ike (na ọnụ ụlọ okpomọkụ), ihe mgbaze organic, na ihe ndị na-eme oxidizing. Ewezuga: ọla alkali a wụrụ awụ na ogige halogen na-ekpo ọkụ na-awakpo PTFE. Mmebi mkpuchi mkpuchi na-ekpughere fiberglass na hydrofluoric acid na alkalis na-ekpo ọkụ. Okpomọkụ dị n'elu 260 Celsius na-ebelata nguzogide. Maka ọtụtụ gburugburu kemịkalụ, akwa PTFE ka kwụsiri ike na ntụkwasị obi.

PTFE emulsion impregnation nke fiberglass ákwà chọrọ dị iche iche auxiliaries nweta edo mkpuchi, ike adhesion, na ntụpọ-free ebupụta. Ihe mgbakwunye ndị bụ isi gụnyere: ndị na-eme mmiri mmiri (belata esemokwu elu, melite ntinye), ndị na-eme ihe (njikwa viscosity na mkpuchi mkpuchi), ndị na-ahụ maka pH (kwụsi ike emulsion na pH 9-10), ndị na-ejikọta silane (na-eme ka adhesion na iko), ihe na-emepụta ihe nkiri (PFA / FEP maka sintering), ndị na-arụ ọrụ na-arụ ọrụ, ndị na-emepụta ihe na-arụ ọrụ (wear). humectants (ngwa ngwa ihicha). Nhọrọ dabere na mkpụrụ osisi na ihe arụmọrụ chọrọ.

A na-agbasa akwa fiberglass (akwa akwa yarn buru ibu) dị iche na nke a na-ahụkarị na akwa fiberglass na nhazi yarn. Site na ọgwụgwọ ụgbọ elu ikuku dị elu, a na-ekewa filamenti iko na-aga n'ihu, na-akpụ akpụ, na-atụgharị n'ime ụda olu, dị ka owu. Nke a na-emepụta akwa akwa, dị nro nke nwere mkpuchi ọkụ dị elu (ikuku ikuku tọrọ atọ), nkwekọ ka mma, arụmọrụ filtration dị elu, yana nkwụsi ike akwa/mgbanwe dị elu - na-eri obere ike nkwụsịtụ. Ejiri ya maka gaskets okpomọkụ dị elu, ihe mkpuchi ọkpọkọ, akpa nzacha, na akara oven.

PTFE akwa na-ekpo ọkụ (fiberglass mkpuchi PTFE) fọrọ nke nta ka ọ bụrụ kemịkalụ inert, mana ụfọdụ ihe na-akpata corrosion n'okpuru ọnọdụ ụfọdụ. Mwakpo PTFE ozugbo na-apụta na ọla alkali a wụrụ awụ (sodium, potassium), ndị na-eme fluorinating siri ike (F₂, ClF₃) na oke okpomọkụ, yana alkalis siri ike gbazere karịa 300°C. Corrosion na-apụtaghị ìhè na-eme mgbe hydrofluoric acid (HF), alkalis na-ekpo ọkụ na-ekpo ọkụ, ma ọ bụ phosphoric acid na-ekpo ọkụ banye n'ime ntụpọ mkpuchi ma wakpo mkpụrụ osisi fiberglass. Maka ọrụ kemịkalụ dị oke egwu, jiri ihe nkiri PTFE dị ọcha na-enweghị fiberglass.

PTFE elu-okpomọkụ ákwà (PTFE-ntekwasa fiberglass) nwere magburu onwe thermal ujo eguzogide n'ime ya nkịtị ọrụ nso nke -70°C ka 260°C. Ọ nwere ike ịnabata ịgba ọsọ ọsọ nke okpomọkụ, dịka ọmụmaatụ, na-esi na friza -50°C gaa na igwe nrụnye ọkụ 260°C. Ọkwa dị elu na-adịkwa ndụ jụrụ oyi na mberede site na 260°C banye mmiri 10°C. Agbanyeghị, ihe na-awụ akpata oyi n'ahụ n'elu 300°C (n'akụkụ ebe mgbaze PTFE's 327°C) ga-eme ka mgbawa na delamination ozugbo. Mkpụrụ fiberglass na-enye nkwụsi ike akụkụ; mkpuchi PTFE bụ ihe na-egbochi ya.

PTFE elu-okpomọkụ ákwà na-ọtụtụ-eji na chemical ụlọ ọrụ asaa isi ngwa: flange gaskets na ọkpọkọ linings (na-eguzogide ike acids / alkalis), chernobyl na tank linings (na-egbochi metal corrosion, mfe ihicha), iyo akpa maka corrosive flue gas (ruo 260 ° C), mgbochi corrosion mgbasa nkwonkwo maka ducts, mgbochi-adhesion mwepu, eletrọnịkị na-eme ka ákwà mgbochi, mwepu mwepu, na-eme ka ọ dị ọcha. mkpuchi mkpuchi. FDA na UL grades dị.