PTFE babban zane mai zafin jiki yana da daraja don rashin tsayawa, juriya, da kaddarorin lalata. Amma guda ultra-smooth, low-surface- energy, chemically inert surface wanda ya sa ya dace don aikace-aikacen saki kuma ya sa ya kusan yiwuwa a haɗa, bugawa, ko laminate.
Magani shine jiyya na ƙasa - injiniya duka microstructure da abun da ke tattare da sinadarai na PTFE don canza shi daga abin da ba a iya haɗawa zuwa haɗin kai.
Aokai PTFE yana ba da zane na PTFE tare da zaɓuɓɓukan jiyya daban-daban. Wannan jagorar yana bayanin hanyoyin gama gari guda huɗu - etching sinadarai, jiyya na plasma, jiyya na corona, da jiyya na Laser - da kuma yadda kowannensu ke canza yanayin jiki da sinadarai.
Chemical Etching (Maganin Maganin Sodium-Naphthalene)
Wannan hanyar jiyya ta rigar tana ba da sakamako mafi ɗorewa kuma yana ganin mafi girman aikace-aikacen haɗin gwiwar PTFE.
1. Gyaran tsarin jiki
Maganin hadaddun sodium-naphthalene yana daidaita saman PTFE ta hanyar cire atom ɗin fluorine daga saman saman saman. Filayen madubi mai santsi na asali an yi shi da ƙananan ƙananan-zuwa nanoscale saƙar zuma- ko ramuka masu siffar murjani. Wannan jujjuyawar yana ƙara haɓaka ƙayyadaddun wuri na musamman kuma yana samar da maki-madaidaicin anka don adhesives.
2. Chemical tsarin gyara
Wannan shine ainihin canji. Sodium mai ƙarfi mai ƙarfi yana fitar da zarra na fluorine daga kashin bayan carbon na PTFE, yana barin sarƙoƙin carbon da ba shi da tushe da radicals kyauta. Wadannan shafuka masu aiki suna kara amsawa tare da danshi da oxygen a cikin iska ko mafita, suna gabatar da ƙungiyoyi masu aiki na polar ciki har da carbonyl (C = O), hydroxyl (-OH), da carboxyl (-COOH) . A halin yanzu, abun cikin carbon na saman yana tashi kuma Layer ɗin da aka kula da shi ya juya duhu-launin ruwan kasa ko launin ruwan kasa-baki.
3. Sakamako
An kafa wani Layer mai aiki mai ƙima-carbon. Ƙarfin sararin sama yana tashi daga ƙasa da 20 dyn/cm don PTFE mai tsafta mara magani zuwa sama da 40-50 dyn/cm , wanda har ma yana ba da damar haɗin kai kai tsaye tare da adhesives na tushen ruwa. Wannan gyare-gyaren tsarin yana dindindin . Duk da haka, Layer ɗin da aka yi masa magani ba shi da bakin ciki da yawa microns kuma yana buƙatar kariya a hankali.
Maganin Plasma
Yawanci ana amfani da shi don aiki na ɓangare ko na cikin layi, ana rarraba maganin plasma zuwa cikin plasma mara ruwa da kuma plasma-matsi na yanayi.
1. Gyaran tsarin jiki
Barbashi masu ƙarfi (electrons, ions, free radicals) suna ci gaba da bam a saman PTFE kuma suna haifar da tasirin sputter-etching. An sculted wani ƙwaƙƙwaran nanoscale roughed texture a saman; An cire layin iyaka mai rauni ba tare da lalata tushen fiberglass ba. A taƙaice, shimfidar ƙasa mai girma-tsarin kristal tana jujjuyawa zuwa yanayin ƙarami-roughened mai amorphous.
2. Chemical tsarin gyara
Tsarin gas yana ƙayyade ƙungiyoyin aiki na ƙarshe:
Maganin iskar iskar gas (misali, argon): Yana karya haɗin gwiwar CF don samar da radicals kyauta na saman ƙasa don haɓaka ƙungiyoyin polar na gaba.
Gases masu amsawa (oxygen, ammonia): kai tsaye dasa hydroxyl, carbonyl, da ƙungiyoyin amino akan sarƙoƙi na kwayoyin.
3. Sakamako
Ana samun tsaftataccen fili, mai ruwa mai ƙarfi nano-roughened. Tasirin haɓaka haɗin gwiwa yana raguwa akan lokaci , don haka ya kamata a aiwatar da lamination daidai bayan jiyya na plasma. Babban abin da ya cancanta shi ne gyare-gyare mai zurfi mai zurfi, wanda da kyar ke canza kaurin kayan gaba ɗaya da launi na asali.
Maganin Corona
Dabarar fitarwa mai ƙarfi mai ƙarfi wanda ke aiki da sauri akan kayan sirara-fim duk da haka yana fama da koma bayan aiki da sauri.
1. Gyaran tsarin jiki
Fitilar wutar lantarki mai ƙarfi tana haifar da fitilun micro-arc. Tasiri daga electrons masu ƙarfi suna karye sarƙoƙin ƙwayoyin cuta na PTFE, suna ƙirƙirar rukunin yanar gizo masu aiki, kuma suna ƙaƙƙarfan rubutu mara zurfi, da dabara. Sakamakon ƙarancin kuzari da ɗan gajeren lokacin amsawa idan aka kwatanta da jiyya na plasma, corona kawai yana haifar da ƙayyadaddun ƙayyadaddun ramuka-kamar saman ƙasa.
2. Chemical tsarin gyara
Ana samar da Ozone da nau'in oxygen mai amsawa a cikin yankunan da aka fitar. Oxidation yana gabatar da ƙungiyoyin hydroxyl, peroxides, da ƙungiyoyin carbonyl don haɓaka ƙarfin saman ƙasa sosai.
3. Sakamako
Maganin yana rinjayar wani yanki mai sirara sosai tare da gyare-gyaren tsari mara kyau, wanda tasirinsa na haɓaka yana shuɗewa da sauri. Ana tura shi da farko azaman tsari na inganta mannewa cikin layi na ɗan lokaci. Don mafi kauri, kayan da aka cika kamar PTFE babban zane mai zafin jiki, maganin corona gabaɗaya yana haifar da ƙarancin sakamako idan aka kwatanta da jiyya na plasma da etching sinadarai.
Maganin Laser
Daidaitaccen gyare-gyare ta amfani da fasahar Laser-eximer ko femtosecond-laser.
1. Gyaran tsarin jiki
Tasirin Photothermal da photochemical daidai yake ƙirƙira ƙirar tsararrun ma'auni na micron na yau da kullun kamar ripples na lokaci-lokaci, tsagi, ko ƙananan ginshiƙai. Ana iya daidaita waɗannan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan suna iya daidaita su don samar da ingantattun geometries don cuɗanya da injina tare da adhesives.
2. Chemical tsarin gyara
Laser photons mai ƙarfi yana karya haɗin gwiwar CF mai ƙarfi, yana haifar da lalatawar gida da carbonization. Wuraren da aka yiwa magani suna haɓaka nau'in carbon mai kama da lu'u-lu'u ko yadudduka na carbon mai hoto tare da haɓakar abun ciki na oxygen. Ultraviolet excimer Laser na iya dasa monomers masu aiki ta hanyar halayen hoto na kai tsaye ba tare da iskar carbonation ba.
3. Sakamako
Daidaituwa, niyya, da gyare-gyaren tsari na nau'in jiki da polarity na sinadarai an samu. Inert polymer surface an canza zuwa wani carbon-oxygen-arzikin Layer tare da sarrafawa roughness da kuma high surface makamashi, isar da high-ƙarfi da kuma dorewa bonding yi.
Matsakaicin matakin santsi mai santsi yana jujjuya saman saman hoto mai ƙanƙara wanda aka lulluɓe da ƙananan kogon-nano-sikelin, ramuka, da sigar murjani, yana samar da ɗimbin maki-interlocking na inji don haɗin gwiwa.
Hanya
Ma'aunin Roughness
Nau'in Tsari
Chemical etching
Micro-nano
Zuma, kamar murjani (bazuwar)
Maganin Plasma
Nano
Fine, uniform (amorphous)
Maganin Corona
Nano (mai zurfi)
Rami mai iyaka
Maganin Laser
Micro
Tsari na yau da kullun (ripples, ginshiƙai, tsagi)
2. Canjin sinadarai
Wurin ƙasa mai ƙarancin kuzari da aka gina daga sarƙoƙi na perfluorocarbon (-CF₂-CF₂-) an juye shi zuwa ƙasa mai ƙarfi mai yalwar oxygen- da ƙungiyoyin aikin polar mai ɗauke da nitrogen. Za a iya jika saman da aka gyara ta manne na yau da kullun kuma a samar da haɗin gwiwar hydrogen ko ma haɗin sinadarai tare da ƙwayoyin mannewa.
Hanya
An Cimma Makamashin Sama
Dawwama
Chemical etching
40-50 dyn/cm
Dindindin
Maganin Plasma
40-60 dyn/cm
Gajeren taga (sa'o'i zuwa kwanaki)
Maganin Corona
38-45 dyn/cm
gajerun sa'o'i sosai
Maganin Laser
Mai iya daidaitawa
Dindindin
Aokai PTFE yana ba da zane na PTFE tare da etching sinadarai (diddigewa, saman duhu) da jiyya na plasma (tsabta, adana launi, gajeriyar taga kunnawa) azaman daidaitattun zaɓuɓɓuka. Ana samun maganin Laser don aikace-aikace na musamman waɗanda ke buƙatar daidaitattun alamu. Tuntube mu don tattauna buƙatun haɗin gwiwa.
Idan kuna son ƙarin koyo cikakkun bayanai dalla-dalla, yanayin aikace-aikacen da keɓaɓɓen mafita don samfuranmu masu cikakken kewayon, gami da zane mai zafin jiki na PTFE, PTFE high-zazzabi m tef, PTFE high-zazzabi raga bel, m zafi-latsa bel, guda-gefe PTFE masana'anta, high-zazzabi mai zafi lamba mana bayanai ta hanyar fiberglass resistant. kasa:
