Nau'in kauri da halaye
Masu kauri na Cellulosic suna da babban tasiri mai kauri, musamman don kauri na lokacin ruwa; suna da ƙarancin ƙuntatawa akan ƙirar sutura kuma ana amfani dasu sosai; Ana iya amfani da su a cikin nau'i mai yawa na pH. Duk da haka, akwai rashin amfani kamar rashin daidaituwa, ƙarin fantsama yayin rufin abin nadi, rashin kwanciyar hankali, da mai saurin lalacewa ga ƙananan ƙwayoyin cuta. Saboda yana da ƙananan danko a ƙarƙashin babban shear da kuma babban danko a ƙarƙashin tsayi da ƙananan shear, danko yana ƙaruwa da sauri bayan rufewa, wanda zai iya hana sagging, amma a gefe guda, yana haifar da rashin daidaituwa. Nazarin ya nuna cewa yayin da dangi nauyin kwayoyin halitta na thickener ya karu, zubar da launi na latex shima yana ƙaruwa. Masu kauri na Cellulosic suna da saurin fashewa saboda girman girman kwayoyin halittarsu. Kuma saboda cellulose ya fi hydrophilic, zai rage juriya na ruwa na fim din fenti.
cellulosic thickener
Polyacrylic acid thickeners suna da karfi mai kauri da daidaita kaddarorin, da kuma kyakkyawan kwanciyar hankali na ilimin halitta, amma suna kula da pH kuma suna da ƙarancin juriya na ruwa.
polyacrylic thickener
An lalata tsarin haɗin gwiwar haɗin gwiwar polyurethane thickener a ƙarƙashin aikin ƙarfin ƙarfi, kuma danko yana raguwa. Lokacin da ƙarfin ƙarfi ya ɓace, za'a iya dawo da danko, wanda zai iya hana abin da ke faruwa na sag a cikin aikin ginin. Kuma farfadowar danko yana da wani nau'i na hysteresis, wanda ya dace da daidaitawar fim din. Massan kwayar halittun kwayar cuta ta dangi (dubbai zuwa dubun dubun) na Polyurethane Therry daga cikin taro na farko (daruruwan dubbai na farko masu kauri, kuma ba zai inganta flashing ba. Polyurethane thickener kwayoyin suna da duka hydrophilic da hydrophobic kungiyoyin, da kuma hydrophobic kungiyoyin da karfi dangantaka da matrix na shafi fim, wanda zai iya inganta ruwa juriya na shafi fim.
Lokacin aikawa: Maris 24-2023