Kamar yadda muka sani, gabaɗaya ana tsammanin gine-ginen zai sami rayuwar sabis na akalla shekaru 50. Sabili da haka, kayan da ake amfani da su dole ne su kasance suna da tsawon rayuwar sabis. Silicone sealant an yi amfani da ko'ina a fagen gina ruwa hana ruwa da kuma sealing saboda da kyau kwarai high da ƙananan zafin jiki juriya, fice weather juriya, da kuma kyau bonding Properties. Duk da haka, bayan wani lokaci bayan ginawa, canza launi na silicone sealant ya zama matsala mai yawa, wanda ya bar "layi" a kan gine-gine.
Me yasa manne silicone ke canza launi bayan amfani?
Akwai dalilai da yawa na ɓangarori ko cikakken canza launin siliki na rami ko manne gilashi, galibi a cikin abubuwan masu zuwa:
1. Rashin daidaituwa na daban-daban kayan gyare-gyaren Acidic sealants, tsaka-tsakin barasa mai tsaka-tsaki, da ma'auni mai tsaka-tsaki na oxime ba za a iya amfani da su tare ba, saboda suna iya rinjayar juna kuma suna haifar da launi. Gilashin gilashin acidic na iya haifar da ma'auni na tushen oxime su zama rawaya, kuma yin amfani da tsaka-tsakin tushen oxime kuma tsaka tsaki na gilashin gilashi tare kuma na iya haifar da rawaya.
Kwayoyin da aka saki a lokacin da ake warkar da nau'in oxime mai tsaka-tsaki, -C=N-OH, suna iya amsawa da acid don samar da ƙungiyoyin amino, waɗanda ke samun sauƙi ta hanyar iskar oxygen a cikin iska don samar da abubuwa masu launi, wanda zai haifar da canza launi na sealant.
2. Saduwa da roba da sauran kayan
Silicone sealants na iya zama rawaya lokacin da ake hulɗa kai tsaye tare da wasu nau'ikan roba, kamar roba na halitta, roba neoprene, da roba na EPDM. Ana amfani da waɗannan robar a ko'ina a bangon labule da tagogi / kofofi azaman ɗigon roba, gaskets, da sauran abubuwan haɗin gwiwa. Wannan canza launin yana da rashin daidaituwa, tare da kawai sassan da ke hulɗar kai tsaye tare da roba yana juya launin rawaya yayin da sauran wuraren ba su da tasiri.
3. Sealant discoloring kuma za a iya lalacewa ta hanyar wuce kima mikewa
Yawancin lokaci ana danganta wannan al'amari bisa kuskure ga asarar launi na sealant, wanda zai iya haifar da abubuwa guda uku.
1) Rubutun da aka yi amfani da shi ya wuce karfinsa kuma an shimfiɗa haɗin gwiwa da yawa.
2) Kauri na sealant a wasu wurare yana da bakin ciki sosai, yana haifar da canje-canjen launi a cikin waɗannan wuraren.
4. Hakanan ana iya haifar da rashin launi na sealant ta abubuwan muhalli.
Irin wannan nau'in canza launin ya fi kowa a cikin nau'in nau'in oxime mai tsaka-tsakin tsaka-tsaki, kuma babban dalilin rashin launi shine kasancewar abubuwan acidic a cikin iska. Akwai abubuwa da yawa na abubuwan acidic a cikin iska, kamar su warkar da silicone sealant acidic, acrylic coatings da ake amfani da su wajen gine-gine, yawan adadin sulfur dioxide a cikin yanayi a lokacin hunturu a yankunan arewa, kona sharar filastik, kona kwalta, da sauransu. Duk waɗannan abubuwan acidic da ke cikin iska na iya haifar da nau'in nau'in oxime don canza launin.
Yadda za a kauce wa discoloration na silicone sealant?
1) Kafin ginawa, gudanar da gwajin dacewa akan kayan da ke hulɗa da ma'auni don tabbatar da daidaituwa tsakanin kayan, ko zaɓi ƙarin kayan haɗi masu dacewa, kamar zaɓar samfuran roba na silicone maimakon samfuran roba don rage yiwuwar launin rawaya.
2) Yayin ginin, tsaka-tsakin tsaka-tsakin kada ya kasance cikin hulɗa da acid sealant. Abubuwan amine da aka samar ta hanyar rugujewar tsaka-tsaki mai tsaka-tsaki bayan cin karo da acid za su yi oxidize a cikin iska kuma suna haifar da canza launi.
3) A guji tuntuɓar ko bayyanar da abin rufe fuska ga gurɓatattun yanayi kamar acid da alkalis.
4) Discoloration yafi faruwa a cikin launuka masu haske, fari, da samfurori masu haske. Zaɓin maƙallan duhu ko baki na iya rage haɗarin canza launi.
5) Zabi ma'auni tare da ingantaccen inganci da kyakkyawan suna-JUNBOND.
Lokacin aikawa: Mayu-22-2023