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 emulsion ịnye ọnụahịa na-emetụta ihe n'ofe dum ulo oru yinye. Ọnụ ego dị n'elu (ngwuputa fluorite, oke refrigerant R22) na-edozi ala ọnụ ahịa ala. Ọchịchọ dị n'okpuru ala sitere na ndị na-ejikọta batrị lithium bụ isi ihe na-anya uto. Ihe ntinye (ụgwọ ọrụ ụlọ ọrụ, mmezi ihe ọkụkụ) na àgwà ngwaahịa (ọdịnaya siri ike, nha nha, ọkwa ịdị ọcha) na-emepụta ọkwa ọnụahịa. Iwu gburugburu (mgbochi PFOA/PFAS) na-ebuli ụgwọ nnabata. Logistics (ụgbọ njem oyi-atụ) na-agbakwunye nnukwu ego. Usoro ọnụahịa na-agbaso mgbagha bụ isi: fluorite/hydrofluoric acid akwụ ụgwọ = ala; Ọchịchọ batrị ike ọhụrụ = ntụzịaka omume; Ọnụọgụ arụ ọrụ na atumatu = ihe na-ebute mbelata oge dị mkpirikpi.

PTFE teepu maka ọkpọkọ kemịkalụ / arịa mgbochi corrosion, na-abụghị osisi, na mkpuchi mkpuchi chọrọ ihe dabara adaba, usoro nrapado, na mgbasa ozi kemịkalụ. A na-atụ aro silicone PSA maka 200-260 Celsius C na acid / alkalis; acrylic PSA na-eguzogide ihe mgbaze organic mana na-amachi okpomọkụ ka ọ bụrụ ≤150°C. Maka HF, esi> 80% alkali, ma ọ bụ chlorine trifluoride, jiri naanị PTFE lining (enweghị ihe nrapado organic). Mkpa: nrapado bụ njikọ kachasị ike, ọ bụghị PTFE n'onwe ya.

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.

A na-emeziwanye ike teepu PTFE site na mkpuchi na nhazi usoro nhazi. mkpuchi: primer oyi akwa (0.5-2μm silane primer na-egbochi nrapado peeling), nrapado ọkpụrụkpụ 30-60μm (kacha mma maka ijide ike), agụụ defoaming, na 5-10μm filtration. Ngwọta: kpo oku stepwise (80-100 Celsius C mwepụ ihe mgbaze → 120-140 ° C na-akpụzi → 150-220C miri emi crosslinking), post-curing (40-60 ° C maka 24-48h iji zuru ike na nchekasị), na obere-mkpasu iwe mbupụ iji gbochie esịtidem stress si substrate shrinkage. The primer dị mkpa maka PTFE dị ala ike.

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-eme ka ahụ sie ike ma na-ewebata otu polar (C=O, -OH, -COOH) iji mee ka nrapado nwee njikọ.