Hōʻike kēia ʻatikala i ke kaʻina hana piha no ka hoʻoheheʻe ʻana i ka lole fiberglass me ka emulsion PTFE. ʻEhiku mau ʻanuʻu koʻikoʻi: ① Hoʻomaʻamaʻa mua (dewaxing/desizing) ma 350-400°C no ka wehe ʻana i nā mea hoʻohui lole; ② Emulsion formulation me 40-55% solid content a me surfactants no ka hoʻomaʻemaʻe maikaʻi ʻana; ③ ʻO ka impregnation ma ke ʻano dip-squeeze a i ʻole ka uhi ʻana o ke kauka; ④ Hoʻomaloʻo ma 100-150 ° C e hoʻoheheʻe mālie i ka wai a hana i kahi kiʻi PTFE maloʻo; ⑤ Sintering ma 360-390 ° C (a hiki i 400 ° C) e hoʻoheheʻe i nā ʻāpana PTFE i loko o ke kiʻiʻoniʻoni mau; ⑥ ʻO ka hoʻomaloʻo ʻana-sintering multi-cycle i hana hou ʻia 2-4 mau manawa e hiki ai i ka mānoanoa pahuhopu a me ka ʻike resin (45-65%); ⑦ Ma hope o ka mālama ʻana me ka mālama ʻana i ka corona, ka ʻoki ʻana i ka lihi, ka wili a me ka nānā maikaʻi. ʻO nā kumu mana: hoʻopau dewaxing, hoʻomaʻemaʻe emulsion piha, hoʻomaloʻo mālie, ka mahana sintering pololei, a me ka nui o ka uhi ʻana. Hāʻawi nā huahana i nā laminates i uhi ʻia i ke keleawe kiʻekiʻe, nā kāʻei conveyor wela kiʻekiʻe a me nā mea membrane kūkulu hale.

Hōʻike kēia ʻatikala i nā mea hoʻoheheʻe kūlohelohe i hiki ke kū i ka lole wela wela PTFE. Hōʻike ka lole fiberglass i uhi ʻia i ka PTFE i ka inertness kemika ʻokoʻa, e kūʻē ana i nā mea hoʻoheheʻe kūlohelohe maʻamau ma lalo o nā kūlana hana maʻamau me ka ʻole o ka hemo ʻana, ka pehu a i ʻole ka hopena kemika. ʻO nā ʻāpana hiki ke ʻae ʻia: nā waiʻona (methanol, ethanol, isopropanol), ketones (acetone, MEK, cyclohexanone), esters (ethyl acetate, butyl acetate), hydrocarbons (gasoline, toluene, xylene, hexane), halogenated hydrocarbons (dichloromethane, chlorodieTH), ether carbon carbon. nā waikawa (glacial acetic acid, formic acid), amines a me nā amides (triethylamine, DMF), phenols, a me nā mea ʻē aʻe e like me ka carbon disulfide, pyridine, ka ʻaila silicone a me ka wai kaʻa.

Hoʻopili kēia ʻatikala i nā koi o ka hoʻoilo i ka wā PTFE kiʻekiʻe-mehana lole sintering. Ma hope o ka sintering ma 380-400 ° C, pono ka lole e hele wikiwiki i ka 310-315 ° C crystallization-sensitive zone. ʻO ka 30-50°C/min ka liʻiliʻi (hiki i ka lole lahilahi ke loaʻa i ka 100-200°C/min ma o ka hoʻoluʻu ea). ʻO ka hoʻomaloʻo wikiwiki (quenching) e hoʻopuka i ka crystallinity haʻahaʻa (45-50%), e hāʻawi ana i ka palupalu a me ka paʻakikī me nā papa laulima, ka adhesion ikaika, ka maikaʻi ʻole o ka lāʻau, a me ke kūpaʻa ʻana i ka delamination a me ka haki. ʻO ka hoʻoluʻu lohi (ka hoʻoluʻu ʻana i ka umu) ka hopena i ka crystallinity kiʻekiʻe (60-70%), e hoʻopiʻi ai i ka paʻa ʻole a me ka palupalu a hiki ke emi, ka ʻili a me nā microcracks.

Hana ʻia ka PTFE kiʻekiʻe kiʻekiʻe ma ka uhi ʻana i ka PTFE ma luna o ka lole fiberglass ikaika, hāʻawi i ka ikaika tensile, pale wela, nā waiwai non-stick, kūpaʻa kemika, a me ka haʻahaʻa haʻahaʻa. ʻO nā noi koʻikoʻi: ka lawe ʻana i nā ʻoihana (ka wela wela, ka kuke ʻana i ka meaʻai, nā mea maloʻo lole, ka maloʻo pepa/kiʻiʻoniʻoni); ʻO ka lole hoʻokuʻu hoʻokuʻu hoʻohuihui a me nā liner cushion press wela; wiliwili i nā pale pale a me nā ʻaʻahu insulation thermal; kaʻa uila a me ka mea hoʻololi hoʻololi; ke kūkulu ʻana i nā bearings sliding a me nā kākoʻo pipeline; kānana kemika a me ka hoʻopaʻa ʻana i ka valve i loko o nā wahi corrosive. ʻO ka ikaika tensile kiʻekiʻe e hōʻoia i ka lōʻihi ma lalo o ka haʻalulu, ka haehae ʻana, ka hoʻoluliluli pinepine ʻana, a me ke koʻikoʻi mechanical wela kiʻekiʻe ma waena o kēia mau noi kaumaha.

Hoʻopili kēia pōkole ʻenehana mai Jiangsu Aokai i ka nui o ka 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 ʻaʻole i hoʻoheheʻe ʻia, e hoʻoulu ai i nā micro-pores, nāwaliwali ka hoʻopili ʻana i ka substrate me ka uhi ʻana, nā ʻili ʻōpala, ka ikaika ʻole o ka mīkini, a me ka ʻano opaque milky. Hoʻoulu ka overheating i ka hoʻohaʻahaʻa ʻana i ka wela o ka PTFE, ka hoʻohua ʻana i nā pinholes, nā ʻōpū, brittleness, ka ʻeleʻele melemele-a-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.

Kalendering - kaomi ʻana i ka lole i uhi ʻia i ka PTFE ma waena o nā wili aniani wela ma 360-380 ° C - hoʻololi nui i ka morphology ili, hoʻokuʻu i nā waiwai, impermeability, a me ka hana mechanical. Hoʻemi ia i ka roughness mai Ra 0.5-1.0 μm a <0.05 μm, hoʻopaʻa i nā pinholes, hoʻomaikaʻi i ka pale ʻana, akā hoʻemi i ka ikaika o ka waimaka a me ka maʻalahi. Pono no ka hoʻokuʻu ʻana i nā liner a me ka hoʻokaʻawale uila.

ʻO ka hiʻohiʻona ulana fiberglass - maʻalahi, twill, a i ʻole satin - pili nui i ka PTFE mau mea wela wela. Hāʻawi ka ulana satin i ka ikaika haʻalulu kiʻekiʻe (2-3x paʻa) a me ka maʻalahi, kūpono no ke kuʻi ikaika. Hāʻawi ka ulana maʻemaʻe i ka paʻa o ka dimensional maikaʻi loa a me ka hoʻopili ʻili, kūpono no nā noi static. Hoʻohālikelike ʻo Twill i nā waiwai āpau no ka hoʻohana maʻamau.

Hoʻoholo ʻia ka like ʻole o ka uhi ʻana o ka lole wela kiʻekiʻe o ka PTFE e nā kumu ʻehā: ka uhi ʻana (ka nui o nā ʻāpana 0.15-0.35 μm, viscosity, solid content), ka uhi ʻana a me ke kaʻina sintering (makemake ʻia ka uhi ʻana no ka like ʻole), ka maikaʻi o ka substrate (weave pattern, pre-treatment), a me ke kaiapuni hana (20-25% R, <60 ° C). ʻO ke kaʻina hana hoʻohui ʻia ʻo Dip + blade e kaulike i ke komo ʻana a me ka maʻalahi o ka ʻili.

Hāʻawi ka PTFE kiʻekiʻe-mehana lole i ke kūʻokoʻa kemika, kū i nā waikawa ikaika, alkalis, nā mea hoʻoheheʻe organik, a me nā kinoea corrosive. Hōʻike kēia ʻatikala i kāna mau mea kūpaʻa, nā palena (metala alkali hoʻoheheʻe ʻia, nā mea hana fluorinating ikaika), a me nā mea koʻikoʻi e like me ka mahana, ka noʻonoʻo, a me ke koʻikoʻi mechanical.

Ma keʻano he mea hanaʻoihana o nā lole wela kiʻekiʻe o PTFE, hāʻawiʻo Jiangsu Aokai New Materials iāʻoe i nāʻikeʻoihana. ʻO ke kumu nui o ka mālama ʻana i ka fiberglass surface, ʻo ia ke kūkulu ʻana i kahi alahaka molekala ma waena o ka fiberglass inorganic a me ka PTFE organik, i mea e hoʻoponopono pono ai i kā lākou inherent inc.