Man shafawa na silicone ko manne samfuri ne mai ƙarfi da sassauƙa wanda za a iya amfani da shi a aikace-aikace daban-daban. Duk da cewa man shafawa na silicone ba shi da ƙarfi kamar wasu man shafawa ko manne, man shafawa na silicone yana da sassauƙa sosai, koda bayan ya bushe gaba ɗaya ko kuma ya bushe gaba ɗaya.warke. Ruwan rufe silicone kuma yana iya jure yanayin zafi mai tsanani, wanda hakan ya sa ya dace da amfani da shi ga waɗanda ke fuskantar zafi mai yawa, kamar gaskets na injin.
Ruwan silicone mai kauri yana nuna juriya mai kyau ga yanayi, juriya ga tsufa, juriya ga UV, juriya ga ozone, juriya ga zafi mai yawa da ƙarancin zafi, juriya ga girgiza, juriya ga danshi, da kuma halayen hana ruwa shiga; saboda haka, aikace-aikacensa yana da yawa. A cikin shekarun 1990, yawanci ana amfani da shi don haɗawa da rufewa a masana'antar gilashi, don haka ana kiransa da "manne gilashi."
Hoton sama: Maganin silicone mai warkarwa
Hoton hagu: Marufin ganga na silicone sealant
Man shafawa na silicone yawanci yana dogara ne akan 107 (polydimethylsiloxane mai ƙarewa daga hydroxy), kuma yana ƙunshe da kayan aiki kamar polymers masu nauyin ƙwayoyin halitta, plasticizers, fillers, cross-linking agents, coupling agents, catalysts, da sauransu. Plasticizers da aka fi amfani da su sun haɗa da man silicone, farin mai, da sauransu. Fillers da aka fi amfani da su sun haɗa da calcium carbonate nano-activated, heavy calcium carbonate, ultrafine calcium carbonate, fumed silica, da sauran kayan aiki.
Sinadaran silicone suna zuwa a cikin nau'i daban-daban.
Dangane da nau'in ajiya, an raba shi zuwa: sassa biyu (da yawa) da sassa ɗaya.
Bangare biyu (da yawa) yana nufin cewa manne na silicone da aka raba zuwa ƙungiyoyi biyu (ko fiye da biyu) sassa A da B, duk wani ɓangare ɗaya shi kaɗai ba zai iya samar da manne ba, amma bayan an haɗa sassan biyu (ko fiye da biyu), za su samar da manne mai haɗin gwiwa don samar da elastomers.
Dole ne a yi hadin nan da nan kafin a yi amfani da shi, wanda hakan ke sa wannan nau'in silicone sealant ya zama da wahala a yi amfani da shi.
Haka kuma, murfin silicone na iya zuwa a matsayin samfuri ɗaya, ba tare da buƙatar haɗawa ba. Ana kiran wani nau'in murfin silicone mai samfuri ɗaya.Zafin Daki Vulcanizing(RTV). Wannan nau'in manne yana fara warkewa da zarar ya shiga iska - ko kuma, mafi daidai, danshi a cikin iska. Saboda haka, ya zama dole ka yi aiki da sauri lokacin amfani da manne mai silicone na RTV.
Ana iya raba sinadarin silicone mai sassa ɗaya zuwa kashi uku: nau'in deacidification, nau'in dealcoholization, nau'in deketoxime, nau'in deacetone, nau'in deamidation, nau'in dehydroxylamine, da sauransu bisa ga nau'ikan sinadarai daban-daban da ake haɗa su (ko ƙananan ƙwayoyin halitta da aka samar yayin warkarwa). Daga cikinsu, nau'in deacidification, nau'in dealcoholization da nau'in deketoxime galibi ana amfani da su a kasuwa.
Nau'in cire sinadarin acid shine methyl triacetoxysilane (ko ethyl triacetoxysilane, propyl triacetoxysilane, da sauransu) a matsayin wani abu da ke haɗa sinadarai, wanda ke samar da sinadarin acetic acid yayin warkarwa, wanda aka fi sani da "manne mai acid". Amfaninsa sune: ƙarfi mai kyau da bayyanawa, saurin warkarwa cikin sauri. Rashin amfani sune: warin sinadarin acetic acid mai ban haushi, tsatsa na ƙarfe.
Nau'in cire alcoholization yana zuwa ga methyl trimethoxysilane (ko vinyl trimethoxysilane, da sauransu) a matsayin maganin haɗin gwiwa, tsarin warkarwa yana samar da methanol, wanda aka fi sani da "manne irin barasa". Fa'idodinsa sune: kariyar muhalli, ba ya lalatawa. Rashin amfani: saurin warkarwa a hankali, tsawon lokacin ajiya ba shi da kyau.
Nau'in Deketo oxime shine methyl tributyl ketone oxime silane (ko vinyl tributyl ketone oxime silane, da sauransu) a matsayin wakili mai haɗa haɗin gwiwa, wanda ke samar da butanone oxime yayin warkarwa, wanda aka fi sani da "manne nau'in oxime". Amfaninsa sune: babu ƙamshi mai yawa, manne mai kyau ga kayan aiki daban-daban. Rashin amfani: tsatsa tagulla.
Dangane da amfani da samfuran, an raba su zuwa: manne mai tsari, manne mai jure yanayi, manne mai ƙofa da taga, manne mai rufewa, manne mai hana wuta, manne mai hana mildew, manne mai zafi.
Dangane da launin samfurin zuwa maki: launi na gargajiya baƙi, farin faranti, mai haske, launin toka na azurfa 4 iri, wasu launuka da za mu iya aiwatarwa bisa ga buƙatun abokin ciniki.
Akwai nau'ikan nau'ikan silicone sealant iri-iri, waɗanda suka fi ci gaba a fasaha. Nau'i ɗaya, wanda ake kiramai sauƙin matsa lambana'urar rufe silicone, tana da tauri na dindindin kuma tana mannewa da matsin lamba da gangan - a wata ma'anar, kodayake koyaushe zai kasance "mai mannewa," ba zai manne ba idan wani abu ya goge ko ya jingina a kansa kawai. Wani nau'in ana kiransa daUV or radiation da aka warkarna silicone, kuma yana amfani da hasken ultraviolet don warkar da na silicone. A ƙarshe,na'urar thermosetRuwan silicone yana buƙatar fallasa ga zafi domin ya warke.
Ana iya amfani da silicone sealant a aikace-aikace daban-daban. Ana amfani da wannan nau'in sealant akai-akai a cikin aikace-aikacen mota da makamantansu, kamar taimako don rufe injin, tare da gaskets ko ba tare da su ba. Saboda sassaucin sa mai kyau, sealant ɗin kuma kyakkyawan zaɓi ne ga ayyukan sha'awa ko sana'o'i da yawa.
Lokacin Saƙo: Disamba-29-2023
