Isiokwu a na-ekpuchi ihe ndị chọrọ nju oyi n'oge akwa akwa okpomọkụ dị elu nke PTFE. Mgbe emechara ya na 380-400 Celsius, akwa ahụ ga-agafe ngwa ngwa site na mpaghara 310-315 Celsius C na-enwe mmetụta nke kristal. Ọnụego jụrụ oyi na-atụ aro bụ opekata mpe 30-50C / min (akwa akwa nwere ike nweta 100-200 Celsius C / min site na ntụ oyi ikuku). Ngwa ngwa jụrụ oyi (quenching) na-emepụta kristal dị ala (45-50%), na-enye nro dị nro, mkpuchi siri ike nke nwere ebe dị mma, nkwekọ siri ike, arụmọrụ na-adịghị mma nke ọma, na iguzogide delamination na cracking. Igwe oyi na-adị nwayọọ (ịjụ ọkụ ọkụ) na-ebute kristal dị elu (60-70%), na-eme ka mkpuchi siri ike, na-agbaji agbaji na-adaba n'ike, peeling na microcracks.

A na-eme akwa akwa akwa PTFE dị elu site na mkpuchi PTFE n'elu akwa fiberglass dị elu, na-enye ike ike, nkwụsị ọkụ, ihe ndị na-adịghị mma, nguzogide kemịkalụ, na obere esemokwu. Ngwa ndị dị mkpa gụnyere: mbufe ụlọ ọrụ (nkwakọ ngwaahịa na-ekpo ọkụ ọkụ, ịsa nri nri, draịva textile, ihicha akwụkwọ / ihe nkiri); akwa ntọhapụ nke ihe mejupụtara na akwa akwa akwa akwa na-ekpo ọkụ; ákwà mgbochi mgbochi ịgbado ọkụ na mkpuchi mkpuchi okpomọkụ; moto eletriki na mkpuchi mkpuchi; ụlọ na-agbagharị agbagharị na nkwado pipeline; kemịkalụ filtration na valvụ akara na gburugburu ndị na-emebi emebi. Ike tensile dị elu na-eme ka ịdịte aka n'okpuru mgbakasị ahụ, ndọkasị, mgbanwe ugboro ugboro, yana nrụgide igwe dị elu n'ofe ngwa ndị a dị arọ dị iche iche.

N'oge sintering, PTFE ahụ na fiberglass ákwà agbaze n'elu 327°C, na-ebibi mbụ apịaji-chain lamellae na urughuru ókè-etolite amorphous gbazee. Mgbe jụrụ oyi, PTFE recrystallizes n'ime spherulites nke nwere radially gbakwasara lamellae, na crystallinity sitere na 50-70%. Ọnụego jụrụ oyi na-ekpebi izu oke kristal: ngwa ngwa jụrụ oyi na-eme ka kristal dị elu, spherulites buru ibu, ike siri ike; Nkwụsị ngwa ngwa na-enye spherulites dị mma yana ime mgbanwe dị mma.

Nke a teknuzu nkenke si Jiangsu Aokai na-enyocha otú oke oke ala ma ọ bụ elu sintering okpomọkụ na-emebi akwa okpomọkụ PTFE. Ọkpụkpụ dị ala na-ahapụ ahụ adịghị agbaze, na-eme ka micro-pores, mkpuchi mkpuchi na-adịghị ike, ihe na-esighị ike, ike arụ ọrụ adịghị mma, na ọdịdị mmiri ara ehi na-adịghị mma. ekpo oke ọkụ na-ebute mmebi okpomọkụ nke PTFE, na-emepụta pinholes, afụ, nhịkọ, ngbanwe agba odo na-oji, na ịhapụ uzuoku na-egbu egbu. Oke ihe abụọ a na-emebi kọmpat, ịrụ ọrụ anaghị arụ ọrụ, mgbanwe, mkpuchi, na nkwụsi ike akụkụ.

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 mgbaze) - ntụgharị kristal na-amorphous, mkpuchi na-eme ka ọ dị nro, delaminates site na 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.

A na-emepụta akwa akwa okpomọkụ dị elu nke PTFE site na impregnation nke ọ bụla (otu ngafe: ngwa ngwa, ọnụ ala, mkpuchi dị nro, elu siri ike na pinholes) ma ọ bụ impregnation multi-mikpu (2-3+ na-agafe: ezigbo, oke, mkpuchi pinhole, ọdịnaya PTFE 50-70%, arụmọrụ dị elu, ọnụ ahịa dị elu). Otu ntuba dabara gaskets dị ala, akwa nwa oge, na ihe ndị na-ekuku ume. A na-achọrọ ọtụtụ ntinye maka mpempe akwụkwọ nri-ọkwa nri, eriri ndị na-ebufe ihe na-abụghị osisi, ihe mgbagharị sekit ugboro ugboro, ihe mkpuchi kemịkalụ, na akpụkpọ ụlọ.

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-esi ike na-ewebata otu polar (C=O, -OH, -COOH) iji mee ka nrapado mee njikọ.