Hoʻopili kēia pōkole ʻenehana mai Jiangsu Aokai i ke ʻano o ka haʻahaʻa haʻahaʻa a i ʻole ke kiʻekiʻe o ka sintering wela e hōʻino i ka lole kiʻekiʻe o ka PTFE. ʻO ka hoʻoheheʻe haʻahaʻa haʻahaʻa e waiho i nā ʻāpana me ka hoʻoheheʻe ʻole ʻia, e hoʻoulu ai i nā micro-pores, nāwaliwali ka hoʻopaʻa ʻana i ka substrate me ka uhi ʻana, nā ʻili ʻōpala, ka ikaika ʻole o ka mīkini, a me ke ʻano opaque milky. Hoʻoulu ka overheating i ka hoʻohaʻahaʻa ʻana o ka wela PTFE, ka hana ʻana i nā pinholes, nā ʻōpū, brittleness, ka ʻeleʻele melemele-ʻeleʻele, a me ka hoʻokuʻu ʻana i nā uahi ʻawaʻawa. Hoʻopau nā mea koʻikoʻi ʻelua i ka compactness, non-stick performance, flexibility, insulation, and dimensional stability.

PTFE kiʻekiʻe-mehana lole insulating gaskets hui kiʻekiʻe dielectric ikaika (kūpaʻa ma lalo humidity), -70 ° C i 260 ° C wela welau, ke ao holoʻokoʻa kemika kū'ē (koe wale nō mekala alkali hehee wale), non-stick ili (pale creepage), anti-kolo (fiberglass reinforcement vs. pure PTFE), kiʻekiʻe tensile ikaika, haʻahaʻa μ0. μ0. helu helu. Ke hoʻohālikelike ʻia me ka mica, rubber, a me ka PTFE gaskets maʻemaʻe, hāʻawi ka lole PTFE i ka ʻoi aku ka maʻalahi, ka hana ʻana, a me ke kūpaʻa lōʻihi. He kūpono no nā mea hoʻololi, hoʻokaʻawale kaʻa, hoʻopaʻa flange kemika, a me nā lako semiconductor.

Hoʻopili ʻia ke kumukūʻai emulsion PTFE e nā kumu ma waena o ke kaulahao ʻoihana holoʻokoʻa. ʻO nā kumu kūʻai o luna (fluorite mining, R22 refrigerant quotas) hoʻonohonoho i ka papahele kumu kumu. ʻO ka noi haʻahaʻa mai ka lithium battery binders ka mea hoʻokele ulu mua. Nā kumu hoʻolako (ka uku hana ʻoihana, ka mālama ʻana i nā mea kanu) a me ka maikaʻi o ka huahana (maʻiʻo paʻa, ka nui o nā ʻāpana, ka pae maʻemaʻe) e hana i nā pae kumukūʻai. Hoʻonui nā hoʻoponopono kaiapuni (PFOA/PFAS palena) i nā kumukūʻai hoʻokō. Hoʻohui ka logistic (ka lawe ʻana i nā kaulahao anu) i nā lilo nui. ʻO nā kumu kūʻai ma muli o ka loiloi kumu: nā kumukūʻai fluorite/hydrofluoric acid = papahele; ke koi ʻana o ka ʻenehana ikehu hou = ʻano kuhikuhi; nā uku hana a me nā kulekele = nā kumu hoʻololi o ka wā pōkole.

ʻO ka lipine PTFE no ka paipu kemika / moku anti-corrosion, lāʻau ʻole, a me ka pale sila e pono ai i ka substrate hoʻohālikelike, ʻōnaehana adhesive, a me nā media kemika. Paipai ʻia ʻo Silicone PSA no 200-260 ° C me nā waikawa / alkalis; ʻAʻole pale ka PSA acrylic i nā mea hoʻoheheʻe organik akā palena ka mahana i ≤150°C. No ka HF, e hoʻolapalapa ana ma kahi o 80% alkali, a i ʻole chlorine trifluoride, e hoʻohana i ka lining PTFE wale nō (ʻaʻohe mea hoʻopili kūlohelohe). Koʻikoʻi: ʻo ka mea hoʻopili ka loulou nāwaliwali loa, ʻaʻole ka PTFE ponoʻī.

ʻO ka palahalaha o ka lole PTFE i ka wā o ka sintering e koi pono i ka ʻoluʻolu, ka mahana, a me ke kāohi ʻana. ʻO nā ʻano kumu: ka mīkini stenter (mālama ʻia nā papa pine i ka laulā, pale i ka hōʻemi ʻana o ka weft), ka ʻaoʻao wela gradient (hoʻomaʻamaʻa lohi → 380-400 ° C paʻa → hoʻomaha mālie ma lalo o 310 ° C ma mua o ka hoʻokuʻu ʻana i ka ʻāʻī), pre-shrunk substrate (wehe i ke koʻikoʻi ulana ma mua o ka uhi ʻana), a me ka mānoanoa o ka uhi ʻana like ʻole (pale). Pono e mālama ʻia ke kaohi ʻana o Stenter a hiki i ka hoʻolili ʻana ma lalo o ke kiko crystallization PTFE (ma kahi o 310°C) e pale i ka warpage.

ʻO ka hoʻohui like ʻana i ka wā PTFE emulsion impregnation o ka lole fiberglass ke ola o ka maikaʻi o ka huahana. ʻO ke kumu o ka uhi ʻole ʻana: hiki ʻole ke kau ʻia (pili i nā wahi lahilahi), nāwaliwali mechanical (koʻikoʻi koʻikoʻi, ʻāhaeha), hiki ʻole ke uila (e hāʻule ana ka uila i ka 1/10), ke komo ʻana i ke kino (pinhole corrosion), nā pilikia dimensional (warpage), a me ka hoʻoponopono ʻana i nā hemahema (ke kāʻei hele, ʻano mānoanoa). Pono ka hoʻopololei like ʻana i ka mana pololei o ka emulsion viscosity, maʻiʻo paʻa, ka haʻalulu o ka lole, ʻokiʻoki i nā āpau, a me nā ʻaoʻao hoʻomaloʻo/sintering multi-zone.

Hoʻomaikaʻi ʻia ka mana paʻa PTFE tape ma o ka uhi ʻana a me ka hoʻoponopono ʻana i ke kaʻina hana. ʻO ka uhi ʻana: ka papa mua (0.5-2μm silane primer e pale i ka peeling adhesive), ka mānoanoa adhesive 30-60μm (maikaʻi loa no ka hoʻopaʻa ʻana i ka mana), ka hoʻoheheʻe ʻana i ka lepo, a me ka kānana 5-10μm. ʻO ka hoʻomaʻamaʻa ʻana: ka hoʻomehana stepwise (80-100 ° C ka wehe ʻana i ka solvent → 120-140 ° C ka hoʻoheheʻe ʻana → 150-220 ° C hohonu crosslinking), post-curing (40-60 ° C no 24-48h e hoʻomaha ai i ke kaumaha), a me ka haʻahaʻa haʻahaʻa haʻahaʻa e pale aku i ke koʻikoʻi o loko mai ka shrinkage substrate. Pono ka primer no ka ikehu haʻahaʻa o ka PTFE.

ʻO ka PTFE kiʻekiʻe-mehana lole e hana i ʻehā mau ʻanuʻu o ka hoʻololi ʻana i ka hoʻololi ʻana i ka piʻi ʻana o ka mahana: ma lalo o 260 ° C - lohi ka micro-cracking a me ke koena o ka volatilization additive; ma 327 ° C (kahi hoʻoheheʻe) - ka hoʻololi ʻana o ka crystalline-to-amorphous, palupalu ka uhi, delaminates mai fiberglass; 400-500 ° C - PTFE depolymerizes (hoʻokuʻu i nā kinoea ʻawaʻawa), nalowale ka uhi; ma luna o 500°C - palupalu ka fiberglass (840°C wahi palupalu) a nalowale ka pono o ke kino. E noho ma lalo o 260°C mau, e pale aku i ka 300°C mau piko no ka hana palekana.

Hana ʻia ka lole kiʻekiʻe PTFE ma o ka impregnation hoʻokahi-hoʻokahi (hoʻokahi pass: wikiwiki, haʻahaʻa, ʻili lahilahi, ʻili ʻili me nā pinholes) a i ʻole impregnation multi-dip (2-3+ hele: paheʻe, paʻa, pinhole-free coating, PTFE maʻiʻo 50-70%, hana premium, kumukūʻai kiʻekiʻe). Hoʻopili ʻia ka pahu hoʻokahi i nā pahu haʻahaʻa haʻahaʻa, nā moena manawaleʻa, a me nā mea hanu. Pono ʻia ka multi-dip no nā pepa bakena meaʻai, nā kāʻei conveyor non-stick, nā substrate kaapuni kiʻekiʻe, nā laina kemika, a me nā membrane kūkulu hale.

PTFE kiʻekiʻe-mehana lole ili lapaʻau wawahi kemika inertness no ka hoʻopaʻa 'ana/paʻi. ʻEhā mau ʻano: etching kemika (sodium-naphthalene, ikehu ʻili 20→40-50 dyn/cm, papa ʻeleʻele mau, micro-porous structure), lapaʻau plasma (nano-roughening, grafting hui hana, puka makani pōkole), mālama corona (kiʻi ʻoniʻoni, palaho wikiwiki, palena hohonu), a me ka lāʻau laser (ka micro-patterning, controlled carbonization). ʻO nā ʻano hana a pau e hoʻopaʻa kino a hoʻokomo i nā hui polar (C=O, -OH, -COOH) e hiki ai ke hoʻopaʻa paʻa.