Cabanga usebenzisa Itheyiphu ye-PTFE yokushisa okuphezulu ethangini lamakhemikhali, ukugoqa kwekhebula lasolwandle, noma uhlelo lokuvala ngaphansi kwamanzi. I-tape icwiliswa emanzini amasonto noma izinyanga. Ingabe izobamba? Ingabe ingcina izohluleka? Ingabe i-fiberglass izothamba?
Impendulo ayilula. I-PTFE ngokwayo - 'Inkosi Yepulasitiki' - ayisebenzi ngamakhemikhali cishe kuzo zonke izinto. Kodwa itheyiphu ye-PTFE ingaphezu nje kwe-PTFE: ine-fiberglass substrate kanye ne-adhesive-sensitive adhesive (PSA) ngemuva. Lezi zingxenye ziziphatha ngendlela ehluke kakhulu ngaphansi kokucwiliswa isikhathi eside.
I-Aokai PTFE ihlole amamaki etheyiphu amaningi ezimeni zokucwiliswa. Lesi sihloko sihlukanisa ubungozi bamanzi, amanzi anosawoti, nezisombululo zamakhemikhali - futhi sichaza ukuthi yiziphi izinhlobo zokunamathela ezisindayo.
Isimiso Sisonke - I-PTFE Substrate Iqinile, I-Adhesive Ibuthaka
Kumateyipu e-PTFE okushisa okuphezulu ngaphansi kokucwiliswa kwesikhathi eside, ukusebenza kukonke kungafingqwa njengokuthi:
Izinto eziyisisekelo ze-PTFE: Kuhle kakhulu - inert amakhemikhali, ayimunceki, izinzile ngokwengxenye.
I-Fiberglass substrate: Isengozini - ingathamba emanzini isikhathi eside.
Isendlalelo esinamathelayo: Iphuzu elibuthakathaka eliyinhloko - liyancipha ngaphansi kokuchayeka isikhathi eside emanzini, izincibilikisi, noma amakhemikhali.
Isakhi |
Ukusebenza Ngaphansi Kokucwiliswa |
Imodi yokwehluleka |
PTFE enamathela |
Kuhle kakhulu |
Akukho - uhlala engenzi lutho |
Indwangu ye-Fiberglass |
Kuphakathi |
Ukuthambisa, ukuncipha kwamandla ngemva kwamasonto/izinyanga |
I-Silicone PSA |
Kuhle kwabampofu |
Ukulahlekelwa ukunamathela, ukuvuvukala, ukuxebuka |
I-Acrylic PSA |
Impofu kakhulu |
Ukuwohloka okusheshayo emanzini/ezincibilikilweni |
Izingozi Zokucwiliswa Emanzini Zesikhathi Eside
Indlela amanzi ayithinta ngayo itheyiphu:
Isendlalelo esinamathelayo: Ingcina ye-silicone ezwela ukucindezela yenziwa buthaka ngokuchayeka isikhathi eside kuma-molecule amanzi. Amanzi angena ku-adhesive-substrate interface, ehlisa ukunamathela futhi ekugcineni abangele ukwehluleka okuphelele. Amandla e-peel angehla aze afike ku-40% ngemva kwamahora angu-48 okucwiliswa emanzini kwezinye izindlela.
I-Fiberglass substrate: Amateyipu amaningi okuhweba e-PTFE asezingeni eliphezulu asebenzisa indwangu ye-fiberglass efakwe nge-PTFE njenge-substrate. I-Fiberglass izothambisa emanzini isikhathi eside, okuholela ekwehleni kwamandla emishini etheyiphu. Lena inqubo ehamba kancane (amasonto kuya ezinyangeni) kodwa ayinakuhlehliswa.
Kunini lapho ukucwiliswa emanzini kwamukeleka?
Ukuxhumana isikhathi esifushane (ukuhlanza, ukuchaphaza, ukuhlanza kafushane) - kulungile.
Ukucwiliswa ngokuqhubekayo izinsuku noma amasonto - akunconyelwe kumateyipu ajwayelekile e-silicone e-PSA.
Ngokusetshenziswa unomphela ngaphansi kwamanzi, cabangela itheyiphu ye-PTFE enganamatheli enokulungiswa komshini.
I-Aokai PTFE yeluleka amakhasimende ukuthi itheyiphu ye-silicone ye-PSA evamile ifaneleka izinhlelo zokusebenza ezithintana namanzi ngezikhathi ezithile (isb., izindawo zokuhlanza ukudla) kodwa hhayi ukucwiliswa emanzini okuqhubekayo ngaphezu kwamahora angu-72. Ubude besikhathi eside, sincoma ukunamathela kwe-fluorosilicone noma amamaki anganamathelisi.
Ukucwiliswa emanzini anosawoti - Ingozi Ephakeme
Uma kuqhathaniswa namanzi ahlanzekile, amanzi anosawoti adala izinsongo ezinkulu:
I-chloride ions isheshisa ukungena kanye nokulimala kwesendlalelo sokunamathela.
Amanzi anosawoti adala ukugqwala okukhulu kakhulu kuma-fiberglass substrates - imicu yengilazi ingacwila futhi ibe buthaka.
I-crystallization kasawoti phakathi nemijikelezo yokomisa ingaphazamisa ngokuzenzakalelayo isibopho sokunamathela.
Isincomo: Ungasebenzisi itheyiphu ye-PTFE ejwayelekile ekucwilisweni emanzini anosawoti isikhathi eside (isb., ukugoqa kwekhebula lasolwandle, izinzwa zangaphansi kwamanzi). Sebenzisa i-perfluoropolyether (PFPE) enamathelayo noma i-PTFE enganamatheli enomshini wokubamba.
Ukucwiliswa Kwesixazululo Sekhemikhali - Kuncike Ngokuphelele Ekunamatheleni
Amateyipu e-PTFE ahamba phambili ekumelana namakhemikhali - kodwa lokhu kuncike kakhulu ohlotsheni lokunamathela. Izingozi ngaphansi kokucwiliswa kwamakhemikhali ziyahlukahluka kakhulu.
Uhlobo Lwezinamathiselo |
Ukumelana Kwamakhemikhali |
Isincomo Sohlelo |
I-Acrylic PSA |
Impofu - ayimelani nama-asidi aqinile, ama-alkali aqinile, noma izinyibilikisi eziningi eziphilayo |
Akuvunyelwe ngokuphelele kunoma yikuphi ukucwiliswa kwamakhemikhali |
I-Conventional Silicone PSA (ejwayelekile) |
Okumaphakathi - amelana namanzi, ama-asidi abuthakathaka, ama-alkali abuthakathaka, nezinye izincibilikisi. Yehluleka ngaphansi kokucwiliswa isikhathi eside kuma-asidi aqinile agxilile, ama-alkali aqinile, nezinyibilikisi ze-polar (isb, i-acetone, i-MEK) |
Ifanele kuphela ukuvikela ukukhanya kokuchaphaza kwamakhemikhali - hhayi ukucwiliswa okuqhubekayo |
Fluorosilicone Modified PSA |
Kuhle - kuphakeme kakhulu kune-silicone evamile ekuphikisweni kwamakhemikhali; imelana nokucwiliswa kwesikhashana |
Ilungele ukucwiliswa kwesikhathi esimaphakathi (izinsuku ukuya emavikini) kanye nezimo ezilinganisiwe zokulwa nokugqwala |
Perfluoropolyether / Fluorine-based Adhesive |
Kuhle kakhulu - kufanisa ukumelana kwamakhemikhali kwe-PTFE substrate; akuthintwa kancane amakhemikhali avamile |
Ikhethwa ezindaweni ezigqwala kakhulu kanye nokucwiliswa isikhathi eside (izinyanga). Izindleko eziphakeme. |
Itheyiphu ye-PTFE ehlanzekile (Ayikho Okunamathelayo) |
Okuphezulu - akukho ukukhubazeka okuhlobene nokunamathela; ukumelana kwamakhemikhali kufana ne-PTFE substrate |
Inketho ephezulu yokucwiliswa kwamanzi. Idinga ukulungiswa ngomshini (ukuvalwa kwentambo, ukubopha ibhawudo, ukubopha izintambo) |
Impahla |
I-PTFE Substrate |
Isendlalelo Esinamathelayo |
Amanothi |
Amandla e-Peel |
N/A |
Ingehla ngokufika ku-40% ngemva kokucwiliswa emanzini amahora angu-48 (ku-PSA ephulukiswa yi-UV) |
Inkomba engukhiye yokuhluleka kwetheyiphu |
Amandla Okuqina |
Akukho ukulahlekelwa ngemva kwezinsuku ezingu-200 ku-250°C |
N/A |
Amabhondi e-CF anikeza ukuzinza okuvelele |
Ukuvuvukala |
Lutho - ngisho naku-98% H₂SO₄ noma 40% HF |
Ukuvuvukala kwezinyibilikisi (i-toluene, i-acetone, i-MEK) |
Ukuvuvukala okunamathelayo kuholela ekuphakameni komphetho |
Ukumelana Nokugqwala |
> 95% amandla okubamba agcinwe ngemva kwamahora angu-168 ekubileni okungu-37% we-HCl |
Iyahlukahluka ngohlobo |
I-Fiberglass ingahlaselwa yi-HF nezisekelo eziqinile |
I-Insulation kagesi |
Uthembekile |
Ukuwohloka kunganciphisa amandla e-dielectric |
Khetha imikhiqizo ehlangabezana nezidingo zokuvikela |
Ukhiye wokuthatha: I-PTFE substrate izinze ngendlela emangalisayo. Cishe zonke izingozi zokuwohloka zivela kokunamathelayo futhi, ngokwezinga elincane, i-fiberglass substrate.
Isifinyezo Nomhlahlandlela Wokukhetha Wezicelo Zokucwiliswa
Imvelo Yokucwiliswa |
Uhlobo Lwetheyiphu Enconyiwe |
Kungani |
Amanzi amasha, ngezikhathi ezithile |
I-PSA ejwayelekile ye-silicone |
Kwamukelekile kuma-splash, ama-washdowns |
Amanzi ahlanzekile, aqhubekayo (>izinsuku ezingu-7) |
I-Fluorosilicone PSA noma i-adhesive-free |
I-silicone evamile izolahlekelwa ukunamathela |
Amanzi anosawoti, noma yisiphi isikhathi |
I-PTFE enganamatheli + nokulungiswa komshini |
Usawoti uhlasela kokubili okunamathelayo kanye ne-fiberglass |
Ama-acids/izisekelo ezibuthakathaka (pH 4-10), ngezikhathi ezithile |
I-PSA ejwayelekile ye-silicone |
Kuyamukeleka |
Ama-asidi/izisekelo ezinamandla, izinyibilikisi eziphilayo, okuqhubekayo |
I-PTFE enganamatheli (ukulungiswa komshini) noma okunamathelayo kwe-PFPE |
Yilaba kuphela abasindayo |
Ukucwiliswa kwezinga lokushisa eliphezulu (>150°C) |
I-Silicone noma i-fluorosilicone PSA |
I-Acrylic iyahluleka; I-PTFE substrate ilungile |
Kafushane , itheyiphu ye-PTFE yokushisa okuphezulu ingasetshenziswa ezinhlelweni zokucwiliswa - kodwa kuphela uma uqonda amaphuzu abuthakathaka. I-PTFE substrate cishe ayinakuhlulwa. I-fiberglass isengozini ngokulingene. I-adhesive ingozi eyinhloko yokwehluleka.
Ngokucwiliswa emanzini amasha ngaphansi kwamahora angu-72, i-PSA evamile ye-silicone iyamukeleka. Isikhathi eside, amanzi anosawoti, noma amakhemikhali anolaka, thuthukela ku-fluorosilicone, ingcina ye-PFPE, noma - okuhle kunakho konke - itheyiphu ye-PTFE enganamatheli enokulungiswa komshini.
Udinga i-PTFE tape spec yendawo ethile yokucwiliswa? I-Aokai PTFE inikeza izinketho eziningi zokunamathela futhi ingakunikeza idatha yokuhlola yezimo zakho. Xhumana nathi ngesilinganiso sakho esimaphakathi, izinga lokushisa, nobude besikhathi sokucwiliswa okulindelekile.
Lokhu okuqukethwe kunikezwa ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.
Uma udinga imininingwane eningiliziwe, imihlahlandlela yohlelo lokusebenza, nezixazululo ezenziwe ngokwezifiso zohlu oluphelele lomkhiqizo wethu, okuhlanganisa indwangu ye-PTFE yokushisa okuphezulu, amateyipu e-PTFE ashisa kakhulu, amabhande e-PTFE anezikhala, amabhande omshini wokuxubha angenamthungo, indwangu eboshwe ohlangothini olulodwa lwe-PTFE, amabhande okuhambisa okushisa aphezulu kanye ne-high-temperature, i-fiberglass sicela usithinte:
Sibambelela kufilosofi yobungcweti nobuqotho, futhi sizibophezele ekunikezeni izixazululo eziphuma endaweni eyodwa kanye nezinsizakalo ezicabangelayo zawo wonke amakhasimende.
