Nyati sia ƒo nu tso alesi woawɔ ɖeka kple nutsyɔnu mɔ̃ ƒe ka ƒe duƒuƒu kple dzodoƒe ƒe didime be�woakpɔ egbɔ be organosilicone adhesive woakpɔ egbɔ be organosilicone adhesive ɖ

Nyati sia ƒo nu tso mɔnu siwo dzi woato akpɔ PTFE ƒe nutsyɔnu ƒe kristalonyenye dzi le Teflon avɔ si me dzoxɔxɔ le ŋutɔ dzi ŋu. Fafa ƒe agbɔsɔsɔme dzi kpɔkpɔ le tẽ wu eye wòwɔa dɔ nyuie wu: Fafa kabakaba (tsitsi) to ya fafɛ ƒe xɔmetsovɔwo, fafa ƒe ʋuƒo alo tsigoewo dzi — molecule kɔsɔkɔsɔwo tsia tsikpe hafi ɖoɖo ɖe ɖoɖo nu, eye wowɔa kristalo suesuesue siwo mede blibo o; coating nye fafɛ, sesẽ kple optimized non-stick dɔwɔwɔ, vie dzi ɖe kpɔtɔ sesẽ / vuvu tsitretsitsi. Fafa blewu (annealing) to dzoxɔxɔ takpɔkpɔ ƒe akpa si le 10-50°C/h alo dzodoƒe ƒe fafa — molecule kɔsɔkɔsɔwo ɖoa ɖoɖo bliboe ɖe spherulites gã blibowo me; nusi wotsɔ blae ƒe sesẽme lolo, eɖe dzesi le eƒe vuvu nu, eƒe didime li ke, eƒe asitɔtrɔ le nɔnɔmewo ŋu dzi ɖe kpɔtɔ eye wògagbãna ɖe edzi.

Nyati sia ƒo nu tso Teflon avɔ si me dzoxɔxɔ le ŋutɔ zazã le ya dzodzoe ƒe tsatsam ƒe dzodoƒe siwo wotsɔna ƒoa dzoe ŋu. Ate ŋu adzɔ: woate ŋu azãe abe non-stick cushion le mesh belts alo trays ne dzodoƒe ƒe dzoxɔxɔ ≤260 ° C (dzoxɔxɔ sue ƒuƒu, binder ɖeɖe, slurry dɔyɔyɔ) — nyoa demolding kple picking dɔwɔwɔ nyuie. Wode se ɖe enu vevie le dzoxɔxɔ si le titina/kɔkɔ (300-950°C) me — PTFE gblẽna si ɖea aɖi HF kple perfluoroisobutylene ɖe go, si gblẽa nu le dɔwɔnuwo ŋu eye wòhea aɖi si wua ame vɛ. Dedienɔnɔ ƒe gɔmeɖose: ne dzodoƒea ƒe dzoxɔxɔ me mekɔ o alo womate ŋu aka ɖe edzi be wòade 260°C o la, mègazãe o. Nɔnɔme veviwo: subɔsubɔdɔ si yia edzi -70°C va ɖo 260°C, ɣeyiɣi kpui aɖe ƒe 300°C; non-stick kple atikewo ƒe dɔmawɔmawɔ nyuie si gbɔ eme; elektrikŋusẽ ƒe xɔxlɔ̃ nyuie ŋutɔ; ʋuʋudedi si le bɔbɔe (~ 0.04); fiberglass gɔmeɖoanyi naa tensile ŋusẽ gã.

Nyati sia tsɔ vovototo siwo le infrared keklẽŋusẽ dzoxɔxɔ kple ya dzodzoe ƒe tsatsam dzoxɔxɔ ƒe dɔyɔyɔ mɔnuwo dome sɔ kple wo nɔewo le crosslinked structure uniformity of silicone adhesive layers ŋu. Dzoxɔxɔ ƒe tsɔtsɔ yi teƒe bubu ƒe mɔnuwo: ya dzodzoe nɔa te ɖe convection-conduction dzi kple dzoxɔxɔ ƒe dziyiyi fafɛ, dzoxɔxɔ ƒe vovototo sue aɖe le ememe/gota; IR ƒe gege ɖe eme ƒe goglome seɖoƒe li na eye eƒe anyigba ƒe xɔxlɔ̃ sesẽ (micrometre ewo va ɖo alafa geɖe) si wɔnɛ be anyigba ƒe goglome yia eme ƒe ʋuʋu sesĩe. Ŋusẽkpɔɖeamedzi ɖe crosslink ƒe ɖekawɔwɔ dzi: ya dzodzoe wɔnɛ be woate ŋu awɔ dɔ le ɣeyiɣi ɖeka me le eme kple egodo kple crosslink density ɖeka; IR nana be anyigba ƒe ƒuƒoƒo wɔa 'ŋutilã film' si le ʋeʋẽm kabakaba si xea mɔ na dzoxɔxɔ ƒe tsɔtsɔ kple kɔsɔkɔsɔ ƒe ʋuʋu ememetɔ, si wɔnɛ be crosslink density dzi ɖena kpɔtɔna tso anyigba dzi yi ememe.

Nyati sia ƒo nu tso vovototo siwo le PTFE emulsions siwo wowɔ to suspension polymerization vs dispersion polymerization dome ŋu. Numekɔkɔ: suspension polymerization mate ŋu awɔ PTFE emulsion tẽ o; PTFE emulsion vavãtɔ tsoa kaka polymerization me ko. 'Suspension-mɔnu emulsion' nye nyateƒe tsi suspension anyigba suspension-polymerized resin micropowders. Dispersion polymerization (primary emulsion): nusue siwo le dzogoe ene me (0.1-0.3μm, mama kpuie), siwo wotsɔ perfluorinated surfactants li ke, molecule ƒe kpekpeme si lolo ŋutɔ (>94% crystallinity), fibrillation sesẽ, bia 380°C sintering be woawɔ film sesẽ si yia edzi.

Nyati sia ƒo nu tso alesi woatsɔ peroxide crosslinking agents (BPO kple DCP) ƒe gbegblẽ ƒe dzoxɔxɔ kple afã ƒe agbenɔƒe asɔ kple curing process window na Teflon tape ŋu. Nyatakaka veviwo: BPO — 1-min afã ƒe agbenɔƒe le ~ 131 ° C, 1-hr le ~ 92 ° C, 10-hr le ~ 72 ° C; DCP — miniti 1 le ~ 171 ° C, gaƒoƒo 1 le ~ 135 ° C, gaƒoƒo 10 le ~ 115 ° C. Susu si sɔ kple wo nɔewo: adhesive hiã 97-99% crosslinking = 5-7 afã-agbe; ɣeyiɣi si wotsɔ daa dɔe = 5-7 × afã ƒe agbenɔƒe le dzoxɔxɔ si woɖo taɖodzinu na me. Back-bu akɔnta dzoxɔxɔ tso production line ƒe nɔƒe alo megbe-bu akɔnta ɣeyiɣi tso dzoxɔxɔ si ŋu woɖe mɔ ɖo wu.

Nyati sia ƒo nu tso fli ƒe duƒuƒu ƒe didime si bɔ na PTFE dzoxɔxɔ gã avɔ impregnation wɔwɔ fli. Duƒuƒu si bɔ: 2-15 m/min, dɔwɔwɔ ƒe didime si li ke 3-8 m/min, avɔ tsɛwo/fli sesẽwo vaseɖe 10-15 m/min. Mɔxenu siwo tso tsidede tsi me ƒe gege ɖe eme gbɔ: ele be woatsɔ PTFE emulsion ayɔ avɔa me bliboe ɖe fiber bundle ƒe eme — duƒuƒu si nu sẽ akpa hea tsi si mesɔ o, resin dɔwuame kple ka ƒuƒuwo vɛ; emulsion viscosity, solids concentration, fabric weave density katã ɖea gege ɖe eme ƒe agbɔsɔsɔ dzi kpɔtɔna, si bia be woawɔ duƒuƒu blewu na avɔ siwo le kpekpem/siwo le kpekpem. Coating passes: pass geɖe (2-6+) si hiã na dense defect-free coating; gbãtɔ ƒe yiyi blewu na seke, woate ŋu adzi mɔzɔzɔ siwo kplɔe ɖo ɖe edzi le mɔ si sɔ nu.

Nyati sia tsɔ vovototo siwo le infrared radiation dzoxɔxɔ kple hot-ya circulation dzoxɔxɔ dome sɔ kple crosslinked structure uniformity of silicone adhesive layer. Dzoxɔxɔ ƒe tsɔtsɔ yi teƒe bubu ƒe mɔnuwo: ya dzodzoe nye convection-conduction, fafɛ eye wòyia ŋgɔ, si wɔnɛ be dzoxɔxɔ ƒe tɔtrɔ si sɔ; IR nye keklẽŋusẽ ƒe xɔxlɔ̃ kple yame ƒe xɔxlɔ̃ sesẽ (micrometers va ɖo milimeta) si wɔnɛ be anyigba ƒe gogloƒe yi eme ƒe ʋuʋudedi si le togbɛ dzi. Ŋusẽkpɔɖeamedzi ɖe crosslink density mama dzi: hot-ya ɖea mɔ na ememe kple egodo ƒe akpawo be woage ɖe vulcanization ƒe dzoxɔxɔ ƒe domedome le ɣeyiɣi ɖeka kloe me, si naa crosslink density ɖeka le titrime dzi; IR nana be anyigba ƒe ƒuƒoƒo da gbe le ŋutigbalẽ si le ʋeʋẽm si dzɔna enumake si xea mɔ na dzoxɔxɔ ƒe tɔtrɔ, si wɔnɛ be crosslink density ƒe ʋuʋudedi si le ɖaɖɛ dzi ɖena kpɔtɔna tso anyigba dzi yia eme.

Nyati sia ƒo nu tso silica ƒe agbɔsɔsɔ kple alesi wozãa avɔ si me silica sɔ gbɔ ɖo le glass fiber avɔ me ŋu. Silica ƒe agbɔsɔsɔ ƒe nɔnɔme: vevitɔ ƒe dzesi enye SiO2 ≥96% (dzidzenu 96-98%, premium grades >99% to acid leaching kple sintering, te ɖe quartz fiber dzadzɛ ŋu). Ewɔwɔ: E-glass avɔ toa acid dzodzoe ƒe ʋuʋu me be wòatsɔ alɔ akpa siwo menye silica o (boron oxide, sodium oxide), si wɔnɛ be ƒunukpeƒe si me silica sɔ gbɔ ɖo si me ʋuʋudedi le, emegbe wotsɔa wo ƒua gbe be wòaƒo. Viɖe veviwo: subɔsubɔdɔ si yia edzi le 900°C me le yame ƒe dzoxɔxɔ si me dzoxɔxɔ le me, ɣeyiɣi kpui aɖe ƒe dzoxɔxɔ si wu 1200°C, fafaƒe si gogo 1700°C; atikewo ƒe liƒo ɖe acid/alkali akpa gãtɔ ŋu negbe HF kple phosphoric acid dzodzoe koe mele eme o; dielectric constant si bɔbɔ kple insulation si li ke le dzoxɔxɔ gã me.

Nyati sia ƒo nu tso Teflon avɔ si me dzoxɔxɔ le ŋutɔ ƒe nu suewo ƒe nɔnɔmewo ŋu. Substrate skeleton: glass fiber weaving texture le plain/twill weaves me kple porosity gã (micron-scale pores le fiber bundles me kple le warp-weft nodes) si naa teƒe na PTFE impregnation. Coating nɔnɔme: blibo impregnation encapsulation wɔwɔ 'reinforced concrete' xɔtuɖoɖo afisi glass fibers le ŋusẽdodo phase, PTFE nye matrix madzudzɔmadzudzɔe; surface nodular microstructure of nodules (nusuewo) siwo do ƒome kple wo nɔewo to fibrils nyui siwo wowɔ le sintering me; ŋutigbalẽ ƒe ƒuƒoƒo si le ʋeʋẽm ɖaa (si ƒe titrime nye micron geɖe va ɖo ewo) si me PTFE dzadzɛ le abe mɔxenu vevitɔ si xea mɔ na atikewo ƒe dɔmawɔmawɔ, nɔnɔme siwo meléna ɖe nu ŋu o, kple elektrikŋusẽ ƒe xɔxlɔ̃ ene.