labarai

A cikin fenti mai tushen ruwa, emulsions, thickener, dispersants, solvents, levelings na iya rage tashin hankali a saman fenti, kuma lokacin da waɗannan raguwar ba su isa ba, zaku iya zaɓar wakilin jika ƙasa.

Lura cewa kyakkyawan zaɓi na wakilin jika ƙasa na iya inganta yanayin gyaran fenti na ruwa, don haka yawancin wakilan jika ƙasa na substrate sune masu daidaita launi.

Nau'ikan sinadaran jika ƙasa sune: surfactants anionic, nonionic surfactants, polysiloxanes da aka gyara daga polyether, acetylene diols, da sauransu. Abubuwan da ake buƙata don sinadaran jika ƙasa sune ingantaccen aiki wajen rage tashin hankali a saman ƙasa, dacewa da tsarin (musamman ga fenti mai sheƙi mai yawa), yawanci yana narkewa a cikin ruwa, ƙarancin kumfa kuma ba shi da tsayayyen kumfa, ƙarancin amsawa ga ruwa, kuma ba zai haifar da matsalolin sake rufewa da asarar mannewa ba.

Abubuwan da ake amfani da su wajen jika ƙasa sune abubuwan da ake amfani da su wajen jika ƙasa na ethylene oxide (misali, nau'in polyoxyethylene-nonylphenol), nau'in polyorganosilicon da kuma nau'in polymer fluorocarbon non-ionic da sauran nau'ikan, waɗanda sinadarin jika ƙasa na fluorocarbon polymer don rage tashin hankali a saman ƙasa shine mafi mahimmancin tasiri.

Wani kuskuren fahimta, wanda talla ke tasiri, shine cewa tasirin rage matsin lamba a saman kawai ana tantance shi ne lokacin da ikon yaduwar murfin akan substrate shine mafi mahimmanci, kuma wannan kadarar tana da alaƙa da dacewa da tsarin da kuma daidaiton matsin lamba a saman.

Ana iya tantance ikon yaɗa sinadarin jika ta hanyar auna yankin yaɗa wani adadin fenti (0.05 ml) a kan wani abu da aka riga aka shafa bayan an ƙara wani adadin sinadarin jika a kan fenti. Maganin jika.

A lokuta da yawa, ƙimar matsin lamba a saman da ba ya canzawa ba zai iya daidaita da ƙarfin jika fenti a lokacin gini ba, saboda fenti yana cikin filin damuwa yayin gini, kuma ƙarancin matsin lamba a saman da ke canzawa a wannan lokacin, yana da amfani ga jika. Masu amfani da fluorocarbon galibi suna rage matsin lamba a saman da ba ya canzawa, wanda shine ɗayan dalilan da yasa amfani da surfactants na fluorocarbon bai fi na silicone ba.

Zaɓar sinadarin da ya dace kuma yana iya samun kyakkyawan tasirin jika ƙasa. Saboda sinadarin yana dacewa da tsarin, ƙarfin da ke kan saman yana da ƙasa.

Kulawa ta musamman: idan ba a zaɓi wakilin jika substrate yadda ya kamata ba, zai samar da wani Layer na kwayoyin halitta guda ɗaya a kan substrate, don haka daidaito da tsarin shafi ba shi da kyau kuma, wanda zai shafi mannewa.

Ana iya haɗa nau'ikan da yawa daban-daban na danshi don magance danshi mai rikitarwa na substrate.