He ʻokoʻa ka lole fiberglass i hoʻonui ʻia (nui ka lole wili) mai ka lole fiberglass maʻamau i ka hana yarn. Ma o ke kiʻekiʻe-press air jet lapaʻau, hoomau aniani filaments ua kaawale, crimped, a fluffed i voluminous, pulupulu-like wili. Hoʻokumu kēia i ka lole ʻoi aku ka mānoanoa a me ka palupalu me ka insulation thermal maikaʻi loa (nā ʻāpana ea i hoʻopaʻa ʻia), ʻoi aku ka maikaʻi o ka conformability, ʻoi aku ka maikaʻi o ka kānana ʻana, a me ka hoʻomaikaʻi ʻana i ka waimaka/ke kūpaʻa - ma ke kumu kūʻai o ka ikaika tensile haʻahaʻa. Hoʻohana ʻia no nā ʻeke wela kiʻekiʻe, nā paipu paipu, nā ʻeke kānana, a me nā sila umu.

ʻO ka maʻemaʻe maʻemaʻe ke kumu o ka PTFE kiʻekiʻe-mehana lole hana. ʻO ka emulsion PTFE maʻemaʻe kiʻekiʻe (ʻaʻohe ion metala, ʻaʻohe koena haʻahaʻa-molecular-kaumaha) e hōʻoia i ka pale ʻana i ka wela (ʻaʻohe melemele a hiki i 260 ° C), kūpaʻa ʻole, a me ka ikaika dielectric kiʻekiʻe. No ka fiberglass, e mālama ana i ka ikaika a me ka insulation i nā wela kiʻekiʻe (Na₂O <0.8%) alkali-ʻole. ʻO ke aniani waena/kiʻekiʻe-alkali e hoʻohaʻahaʻa. ʻO ka hoʻopau piha ʻana i nā mea ulana nui e pale i ka carbonization a me ka delamination. Hoʻopili pololei ka maʻemaʻe i ke ola lawelawe, ka mālama ʻana i ka meaʻai, a me ka hilinaʻi uila.

He mea koʻikoʻi ka hoʻomaloʻo mua ʻana o ka lole fiberglass no ka uhi ʻana o PTFE, resin impregnation, a i ʻole lamination. ʻEkolu mau lāʻau lapaʻau nui: ka hoʻoneʻe ʻana i ka wai ma 105-120 ° C (10-30 min ma muli o ke kaumaha), dewaxing / hoʻomaʻemaʻe wela ma 300-450 ° C (LOI <0.1%, ʻalo> 500 ° C), a me ka preheating ma 60-100 ° C ma mua o ka uhi ʻana. E hoʻomalu i ka like o ka wela o ka umu (± 5°C), ka hoʻomaʻemaʻe ʻana a me ka pale ʻana i nā lole i mālama ʻia ma lalo o 110°C. E mālama i ka lole maloʻo i loko o nā ʻeke i sila a i ʻole nā ​​keʻena maloʻo (<30°C, <40% RH).

ʻO ka lipine wela kiʻekiʻe o ka PTFE he kūpaʻa paʻakai paʻakai maikaʻi loa, akā ʻo nā wahi nāwaliwali ka papa adhesive a me nā ʻaoʻao o ka fiberglass substrate. Nā ʻano loiloi: 1000h neutral salt spray (NSS) hoʻāʻo, ana i ka paʻa ʻana i ka ikaika peel (≥80% koi ʻia), nā hemahema ʻike (hoʻokiʻekiʻe, blistering), a me ka ʻino o ka substrate metala. No nā kaiapuni kai a me ka noe nui: e hoʻohana i ka PSA silicone (ʻaʻole acrylic), ka substrate PTFE i hoʻopiha piha ʻia, e hoʻopaʻa i nā ʻaoʻao me ka sealant kū i ka wā, a kau i ka primer ma nā ʻili metala.

ʻO ka lole wela kiʻekiʻe o ka PTFE (PTFE-coated fiberglass) ʻaneʻane inert kemika, akā ʻo kekahi mau mea ke kumu i ka pala ma lalo o nā kūlana kikoʻī. Hoʻouka pololei ʻia ka PTFE me nā metala alkali i hoʻoheheʻe ʻia (sodium, potassium), nā mea hana fluorinating ikaika (F₂, ClF₃) ma nā wela kiʻekiʻe, a me nā alkalina ikaika i hoʻoheheʻe ʻia ma luna o 300°C. Hiki ke ʻino ʻole i ka wā e komo ai ka waika hydrofluoric (HF), alkalis concentrated wela, a i ʻole waika phosphoric wela i nā hemahema o ka uhi ʻana a hoʻouka i ka substrate fiberglass. No ka lawelawe kemika koʻikoʻi, e hoʻohana i ke kiʻi PTFE maʻemaʻe me ka fiberglass.

Nalo ka lipine kiʻekiʻe o ka PTFE i ka hoʻopili ʻana ma hope o ka hoʻohana pinepine ʻana ma muli o ka hoʻohaumia ʻana o ka ʻili (ka lepo, ka aila silicone), ka hoʻopaʻa ʻole ʻana (koe), a i ʻole ka hoʻopaʻa ʻana i ka substrate nāwaliwali. ʻO nā hopena: PSA silicone kiʻekiʻe-crosslink (ka neʻe haʻahaʻa, ke kāʻei kaulike / ka mana paʻa), ka mālama mua ʻana i ka substrate PTFE, ke kākoʻo fiberglass paʻa, a me ka mālama pono ʻana (nā ʻaoʻao maʻemaʻe, ka ʻili ʻoluʻolu, ke kihi 180°). ʻO ka hoʻokolohua quantitative hōʻoia i ka hoʻomaikaʻi.

ʻO ka lole wela kiʻekiʻe o PTFE (PTFE-coated fiberglass) he kūpaʻa haʻalulu maikaʻi loa i loko o kāna mau hana maʻamau o -70°C a 260°C. Hiki iā ia ke ʻae i ka holo kaʻa uila wikiwiki, e laʻa, ka neʻe ʻana mai kahi -50°C paʻukū a i kahi paʻi wela 260°C. ʻO nā māka maikaʻi loa e ola i ka hoʻolili koke ʻana mai 260 ° C i ka wai 10 ° C. Eia nō naʻe, ʻo ka haʻalulu ʻana i ka mea mai ka wela ma luna o 300°C (kokoke i ka helu heheʻe o 327°C o PTFE) e hoʻomaka koke i ka pohā a me ka delamination. Hāʻawi ka fiberglass substrate i ke kūpaʻa dimensional; ʻO ka uhi PTFE ka mea palena.

Hoʻohana nui ʻia ka lole kiʻekiʻe o ka PTFE i ka ʻoihana kemika no ʻehiku mau noi nui: flange gaskets a me nā paipu linings (kūʻē i nā waikawa ikaika / alkalis), reactor a me nā linings tank (pale i ka corrosion metala, maʻalahi ka hoʻomaʻemaʻe), kānana ʻeke no ka corrosive flue kinoea (a hiki i 260 ° C), anti-corrosion hoʻonui ʻia nā hui no ka hoʻokuʻu ʻana i nā ducts. a me nā mea hoʻopuʻi uila / wela wela. Loaʻa nā māka FDA a me UL.

PTFE kiʻekiʻe-mehana lipine i mālama ʻia ma lalo o nā kūlana i ʻōlelo ʻia (10-25°C, 40-70% RH, mamao mai UV/koʻikoʻi koʻikoʻi) he 3-6 mau mahina (mau helu premium a hiki i 12 mahina). Nā paepae hoʻohaʻahaʻa nui: ʻaʻole pono e hāʻule ka ikaika o ka ʻili ma lalo o 70% o ka waiwai mua; ʻaʻohe koena paʻa ma hope o ka wehe ʻana i ka wela kiʻekiʻe; ʻaʻohe carbonization a pohā paha i ka mahana i koho ʻia. ʻO nā loiloi wikiwiki: ka manaʻo wehe lima, 260 ° C koena hōʻike, a me ka hoʻāʻo ʻana i ka lamination.

ʻO ka lole wela kiʻekiʻe o PTFE (PTFE-coated fiberglass) hāʻawi i ʻehā mau pōmaikaʻi ma ke ʻano he anti-corrosion lining: chemical inertness (kū'ē i ka aqua regia, alkalis ikaika, solvents), ākea ākea ākea (-70 ° C a 260 ° C mau, 350 ° C peak), dimensional stability (<0.5% elongation), a me ka non-stick elongation. Hoʻohana ʻia i loko o nā paipu kemika, nā hale kiaʻi desulfurization, nā pahu pickling, a me nā lako meaʻai/pharma. Loaʻa nā māka FDA.