labarai

A cikin ruwa na tushen Paints, emulsions, thickeners, dispersants, kaushi, leveling jamiái iya rage surface tashin hankali na Paint, da kuma lokacin da wadannan raguwa ba su isa ba, za ka iya zabar wani substrate wetting wakili.

Lura cewa mai kyau zabi na substrate wetting wakili zai iya inganta leveling dukiya na waterborne fenti, don haka da yawa substrate wetting jamiái ne leveling jamiái.

Nau'in substrate wetting jamiái ne: anionic surfactants, nonionic surfactants, polyether-gyara polysiloxanes, acetylene diols, da dai sauransu Ainihin bukatun ga substrate wetting jamiái ne high dace a rage surface tashin hankali, mai kyau tsarin karfinsu (musamman ga high-mai sheki ruwa-). tushen fenti), yawanci mai narkewa a cikin ruwa, ƙananan kumfa kuma ba barga ba, ƙarancin hankali ga ruwa, kuma ba zai haifar da matsalolin farfadowa da asarar mannewa ba.

Abubuwan da aka saba amfani da su na jiko sune ethylene oxide adducts (alal misali, nau'in polyoxyethylene-nonylphenol), nau'in polyorganosilicon da nau'in nau'in nau'in fluorocarbon polymer da ba na ionic da sauran nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'in fluorocarbon polymer don rage tashin hankali saman shine mafi mahimmancin sakamako.

Rashin fahimta, wanda ya rinjayi tallace-tallace, shine cewa tasirin rage tashin hankali kawai yana ƙayyade lokacin da ikon yadawa na sutura a kan substrate shine mafi mahimmanci, kuma wannan dukiya yana da alaƙa da dacewa da tsarin da kuma dacewa. surface tashin hankali.

Ana iya ƙayyade ikon yada jigon wakili ta hanyar auna yanki mai yaduwa na ƙarar da aka ba (0.05 ml) na fenti a kan wani abin da aka riga aka yi masa rufi bayan ƙara da aka ba da ma'auni na ma'aunin jika zuwa fenti.Wakilan jika.

A lokuta da yawa, ƙimar tashin hankali na tsaye ba zai iya daidaitawa da ikon yin amfani da fenti a lokacin ginawa ba, saboda fenti yana cikin filin damuwa yayin ginawa, kuma ƙananan tashin hankali na sararin samaniya a wannan lokacin, yana da amfani ga wetting.Fluorocarbon surfactants galibi yana rage tashin hankali a tsaye, wanda shine daya daga cikin dalilan da yasa aikace-aikacen surfactants na fluorocarbon ya yi ƙasa da na silicones.

Zaɓin da ya dace da sauran ƙarfi kuma na iya samun sakamako mai kyau na jika.Saboda sauran ƙarfi ya dace da tsarin, tashin hankali mai ƙarfi yana da ƙasa.

Hankali na musamman: idan ba a zaɓi wakili na wetting da kyau ba, zai samar da nau'in kwayoyin halitta guda ɗaya a kan substrate, don haka daidaituwa tare da tsarin sutura ba shi da kyau kuma, wanda zai shafi mannewa.

Ana iya haɗa nau'ikan jika daban-daban don magance ƙarin hadaddun wetting substrate.