1. Viscosity Control
Kukhuthala kwakukuluhydroxypropyl methylcellulosesangatulutse ma cellulose okwera kwambiri pongopukuta ndikuyika nayitrogeni. Komabe, ngati chida choyezera mpweya chitha kuyikidwa mu ketulo, kupanga mamasukidwe amphamvu kumatha kuwongoleredwa mwachinyengo.
2. Kugwiritsa ntchito ma asociative agents
Kuonjezera apo, poganizira kuthamanga kwa nayitrogeni m'malo mwake, ndipo nthawi yomweyo, kulimba kwa mpweya kwa dongosololi ndikwabwino kwambiri, ndipo ndikosavuta kupanga zinthu zowoneka bwino kwambiri. Zachidziwikire, kuchuluka kwa polymerization ya thonje woyengedwa ndikofunikira. Ngati sichikugwirabe ntchito, njira ya hydrophobic association imagwiritsidwa ntchito, ndipo ndi mtundu wanji wa asociative agent omwe amasankhidwa ali ndi chikoka chachikulu pa ntchito yomaliza.
3. Hydroxypropyl zili
Mpweya wotsalira wa okosijeni mu ketulo umapangitsa kuti cellulose iwonongeke ndipo kulemera kwa maselo kumachepa, koma mpweya wotsalirawo ndi wochepa. Malingana ngati mamolekyu osweka alumikizidwanso, sikovuta kupanga kukhuthala kwakukulu. Komabe, kuchuluka kwa machulukitsidwe amadzi kumagwirizananso kwambiri ndi zomwe zili mu hydroxypropyl, mafakitale ena amangofuna kuchepetsa mtengo ndi mtengo, ndipo sakufuna kuwonjezera zomwe zili mu hydroxypropyl, kotero kuti khalidwe silingafikire mlingo wa mankhwala ofanana.
4. Zinthu zina
Mlingo wosungira madzi wa mankhwalawa uli ndi ubale wabwino kwambiri ndi hydroxypropyl, koma panjira yonseyi, imatsimikiziranso kuchuluka kwa kusungirako madzi, zotsatira za alkalization, chiŵerengero cha methyl chloride ndi propylene oxide, kuchuluka kwa alkali ndi madzi. Chiŵerengero ndi thonje woyengedwa chimatsimikizira ntchito ya mankhwala.
Nthawi yotumiza: Apr-25-2024