Matsakaicin PTFE a zahiri yana da juriya na feshi gishiri (shar ruwa <0.01%). Koyaya, aikin tef ɗin gabaɗaya ya dogara da nau'in mannewa: silicone PSA yana jure yanayin yanayin ruwa (gwajin feshin gishiri 500-1000h,> 80% riƙe kwasfa); acrylic PSA ya kasa. Kula da saman da ya dace, aikace-aikacen kumfa, da rufe baki tare da silin siliki suna da mahimmanci don dogaro na dogon lokaci akan dandamali da tasoshin ruwa.

Tef ɗin fiberglass na PTFE yana buƙatar takaddun shaida na aminci guda uku: UL (lantarki da lafiyar harshen wuta), FDA (cirewar hulɗar abinci), da ISO 9001: 2015 (Gudanar da inganci). Taffofin ƙwararrun kaset suna ba da daidaiton aiki, rayuwar sabis mai tsayi, da ƙarancin ƙimar ikon mallaka duk da ƙarin farashi na gaba. Koyaushe tabbatar da takaddun shaida kai tsaye tare da ƙungiyoyi masu bayarwa.

PTFE high-zazzabi tef ake amfani a fadin uku likita aikace-aikace tiers: haifuwa kayan aiki kariya (autoclave trays, zafi-hatimin marufi), kayan aiki surface jiyya (ƙananan gogayya shafi, lantarki rufi), da implantable na'urorin (vascular grafts, sutures). An tabbatar da daidaituwar halittu ta hanyar ISO 10993, kuma FDA 21 CFR 177.1550 ta kafa amincin kayan aiki.

PTFE babban tef ɗin zafi yana da ƙarancin juriya ga ionizing radiation. A kawai 1 kGy bayyanar gamma, ƙarfin ɗaure ya ragu zuwa ~ 25% na asali. Ya dace kawai don ƙananan yanayi (abinci / haifuwa na likita <10 kGy). Don masana'antar nukiliya ko jirgin sama, yi amfani da polyimide ko PEEK maimakon.

Don kaset ɗin zafi mai zafi na PTFE a ƙarƙashin nutsewar dogon lokaci, PTFE substrate ɗin ya kasance marar amfani da sinadarai, amma manne Layer shine wurin rauni. Ruwa yana raunana PSA silicone; ruwan gishiri yana hanzarta lalata. Don sinadarai masu haɗari, ana buƙatar fluorosilicone ko perfluoropolyether adhesives - ko tef ɗin PTFE mara ɗaure - ana buƙata. Ƙarfin kwasfa har zuwa 40% bayan sa'o'i 48 a cikin ruwa.

PTFE babban tef ɗin da aka yi amfani da shi a aikace-aikacen tuntuɓar abinci dole ne ya kasance cikin ƙayyadaddun iyakokin zafin jiki: ≤260°C don ci gaba da amfani, ≤300°C na gajerun kololuwa (mintuna), kuma ba zai taɓa sama da 327°C (ruɓewa ba). Dokokin FDA da EU ba su fayyace ƙayyadaddun lokaci na duniya ba - amintaccen lokacin tuntuɓar ya dogara da zafin jiki kuma dole ne a tabbatar da shi ta gwaje-gwajen ƙaura da ke kwatanta ainihin yanayi.

Tef mai zafi na PTFE na iya fashe ko karaya a ƙarƙashin maimaita lankwasawa da yanayin buɗewa. Wannan labarin yana bayanin yadda ake hana wannan ta hanyar zaɓin zaɓi mai dacewa (ƙarfafa fiber gilashi), mafi kyawun kauri (0.18mm azaman ma'auni), zaɓin manne silicone, da ingantattun dabarun shigarwa.

Zaɓin takarda na saki ko fim ɗin fim da wakili na saki kai tsaye yana tasiri kwanciyar hankali na ajiya da aikin peeling na tef mai zafi mai zafi na PTFE. Wannan labarin ya kwatanta PET vs. kraft takarda substrates da silicone vs. fluorinated saki jamiái, bada shawarar da mafi kyau duka hade ga sifili-saura peeling da kuma dogon lokacin da AMINCI.

Ana amfani da kaset masu zafi mai zafi na PTFE da yawa don rufin lantarki, amma yawan mitoci da yanayin ƙarfin lantarki suna haifar da haɗari na musamman: rushewar wutar lantarki, fitar da ɓangarori, tsufa na zafi, asarar siginar mita mai girma, da ƙwarewar muhalli. Wannan labarin ya bayyana kowane haɗari da yadda za a guje musu.

A matsayin ƙwararrun masana'anta na PTFE high zafin jiki yadudduka, Jiangsu Aokai New Materials raba dacewa masana'antu ilmi tare da ku. Gefen warping da fadowa kashe na PTFE high zafin jiki kaset ba kasafai ake lalacewa ta hanyar guda factor, amma sakamakon sakamakon hade da rashin dace tef selection,