PTFE elu-okpomọkụ ákwà mkpuchi gaskets ikpokọta elu dielectric ike (kwụsi ike n'okpuru iru mmiri), -70 ° C ka 260 ° C okpomọkụ nso, eluigwe na ala chemical eguzogide (ma e wezụga wụrụ awụ alkali ọla), na-abụghị osisi n'elu (na-egbochi creepage), mgbochi creep (fiberglass mkwado vs. dị ọcha PTFE), elu tensile ike = 0-1 flaction (flag.0). ogo. Tụnyere mica, roba, na dị ọcha PTFE gaskets, PTFE ákwà na-enye elu mgbanwe, processability, na ogologo oge akụkụ kwụsie ike. Kwesịrị ekwesị maka ihe ngbanwe, mkpuchi moto, mkpuchi flange kemịkalụ, na akụrụngwa semiconductor.

PTFE ewepụghị akwa ákwà n'oge sintering na-achọ kpọmkwem esemokwu, okpomọkụ, na njide njide. Ụzọ isi: igwe stenter (efere pin na-edobe obosara, gbochie weft shrinkage), profaịlụ okpomọkụ gradient (na-ekpo ọkụ ngwa ngwa → 380-400 ° C jide → nwayọọ nwayọọ dị n'okpuru 310 Celsius C tupu ịhapụ esemokwu), mkpụrụ osisi nke mbụ (na-ewepụ nrụgide ịkwa ákwà tupu mkpuchi), na mkpuchi mkpuchi (na-egbochi agbaze dị iche iche). A ga-edobe ihe mgbochi senter ruo mgbe ọ dị jụụ n'okpuru ebe kristal PTFE (ihe dị ka 310 Celsius) iji gbochie iwe iwe.

Mkpuchi uniformity n'oge PTFE emulsion impregnation nke fiberglass ákwà bụ lifeline nke ngwaahịa àgwà. Ihe mkpuchi na-enweghị isi na-akpata: ọdịda na-adịghị mma (ịrapagidesi ike na ntụpọ ndị dị mkpa), adịghị ike n'ibu (mmetụta nchekasị, nhụsianya), enweghị ike eletrik (voltaji na-adaba na 1/10), ntinye kemịkalụ (pinhole corrosion), akụkụ akụkụ (warpage), na nhazi nhazi (belt wandering, ọkpụrụkpụ ọdịiche). Ihe mkpuchi uwe na-achọ njikwa ziri ezi nke emulsion viscosity, ọdịnaya siri ike, esemokwu akwa, oghere oghere, na profaịlụ ihicha/sintering ọtụtụ mpaghara.

PTFE akwa okpomọkụ dị elu na-enweta usoro anọ nke mgbanwe nhazi ka okpomọkụ na-ebili: n'okpuru 260 ° C - ngwa ngwa micro-cracking na residual additive volatilization; na 327 Celsius C (ebe na-agbaze) - kristal-na-amorphous mgbanwe, mkpuchi na-eme ka ọ dị nro, delaminates si fiberglass; 400-500 ° C - PTFE depolymerizes (na-ahapụ gas na-egbu egbu), mkpuchi na-apụ n'anya; n'elu 500 ° C - fiberglass na-eme ka ọ dị nro (840 ° C ebe nro dị nro) ma tụfuo iguzosi ike n'ezi ihe. Nọrọ n'okpuru 260°C na-aga n'ihu, zere> 300°C maka ịrụ ọrụ nchekwa.

PTFE elu-okpomọkụ ákwà elu ọgwụgwọ agbaji chemical inertness maka bonding / obibi. Ụzọ anọ: chemical etching (sodium-naphthalene, elu ike 20 → 40-50 dyn / cm, ọchịchịrị oyi akwa na-adịgide adịgide, micro-porous Ọdịdị), plasma ọgwụgwọ (nano-roughening, arụ ọrụ otu grafting, mkpụmkpụ arụ ọrụ window), corona ọgwụgwọ (ihe nkiri, ngwa ngwa ire ere, oke omimi), na laser ọgwụgwọ (nkenke micro-patterning, carbonization na-achịkwa). Ụzọ niile na-eme ka ahụ sie ike ma na-ewebata otu polar (C=O, -OH, -COOH) iji mee ka nrapado nwee njikọ.

Raw ihe dị ọcha bụ isi ntọala nke PTFE elu-okpomọkụ ákwà mma. Ihe ndị na-adịghị ọcha (ndị na-emepụta ihe fọdụrụnụ, ndị surfactants, ion metal, ndị na-emetọ ihe na-emetọ) na-eme ka mmebi ọkụ na-adịghị agwụ agwụ (afụ, ọnya n'elu 260 Celsius C), ebe ndị na-adịghị ahụkebe (ihe adhesion arịlịka), mbelata ọkụ eletrik (nkwụsị dielectric, obere nkwụsịtụ voltaji), ike na-agwụ ike na-acha odo odo (nsụhọ). Akụrụngwa dị elu dị ọcha na-eme ka FDA kwadoro, ogologo ndụ, akwa PTFE na-arụ ọrụ dị elu.

PTFE mkpuchi fiberglass ákwà ngebichi chọrọ oge njide ziri ezi na 370-400°C. Ọkụ na-aga n'ihu: 30-90s (mkpa) ruo 3-5+ nkeji (oke). Igwe ọkụ ogbe: 5-15 min. N'okpuru-sintering na-akpata opaque, siri ike mkpuchi na bee; ngafe n'oke na-ebute agba odo, nhịkọri, na ntọhapụ gas fluoride na-egbu egbu. Usoro njikarịcha: jiri ndị na-ahụ maka okpomọkụ ọkụ ọkụ, na-eduzi nleba anya (ọkara transperent, mgbanwe), ma mee ule ndọpụta teepu. Gbaa mbọ hụ na ịdị n'otu n'ịdị arọ nke oke okpomọkụ.

PTFE akwa akwa okpomọkụ chọrọ iji nlezianya mee ihe iji hụ na nchekwa na ogologo ndụ. Ihe ị ga-akpachapụ anya: agaghị agafe 260 Celsius C (n'elu 320 Celsius C na-ahapụ uzuoku na-egbu egbu), zere nhụsianya dị nkọ (nkpuchi mgbawa, na-ekpughe fiberglass), enweghị nhicha abrasive (ajị anụ na-emebi elu na-abụghị osisi), debe mgbasawanye okpomọkụ (na-egbochi ịdọka), ma dochie anya mgbe ọnya ma ọ bụ kpụpụrụ ya. Akpọrọla ụlọ ahịa, pụọ na UV. Yiri uwe mkpuchi na-ekpo ọkụ mgbe a na-ejikwa ya.

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.