Zomwe Zimakhudza Kuyera kwa Hydroxypropyl Methyl Cellulose

Kuyera kwa hydroxypropyl methylcellulose pomanga matope otsekemera ndi putty powder kumakhudza mwachindunji ubwino wa zomangamanga, ndiye ndi zinthu ziti zomwe zimakhudza chiyero cha hydroxypropyl methylcellulose? Ndiroleni ndikuyankheni funso ili.

Popanga hydroxypropyl methylcellulose, mpweya wotsalira mu riyakitala umayambitsa kuwonongeka kwa hydroxypropyl methylcellulose ndikuchepetsa kulemera kwa maselo, koma mpweya wotsalira uli ndi malire, malinga ngati sikuli kovuta kwambiri kugwirizanitsa mamolekyu osweka Masoka. Kuchuluka kwa madzi ofunikira kwambiri kumakhudzana kwambiri ndi zomwe zili mu hydroxypropyl. Mafakitale ena amangofuna kuchepetsa mtengo ndi mtengo, koma safuna kuonjezera zomwe zili mu hydroxypropyl, kotero khalidwe silingathe kufika pamlingo wazinthu zakunja zofanana.

Mlingo wosungira madzi wa hydroxypropyl methylcellulose ulinso ndi ubale wabwino ndi hydroxypropyl, ndipo panjira yonseyi, hydroxypropyl imatsimikiziranso kuchuluka kwa madzi a hydroxypropyl methylcellulose. Zotsatira za alkalization, chiŵerengero cha methyl chloride ndi propylene oxide, kuchuluka kwa alkali ndi chiŵerengero cha madzi ku thonje woyengedwa zonse zimatsimikizira ntchito ya mankhwala.

Ubwino wa zopangira, zotsatira za alkalization, kuwongolera chiŵerengero cha ndondomekoyi, chiŵerengero cha zosungunulira ndi zotsatira za neutralization zonse zimatsimikizira ubwino wa hydroxypropyl methylcellulose, ndi ena hydroxypropyl methylcellulose amapangidwa kuti asungunuke Pambuyo pake, kunali kwamtambo ngati kuwonjezera. mkaka, zina zinali zoyera ngati mkaka, zina zachikasu, ndipo zina zinali zoonekera bwino. Ngati mukufuna kuthetsa, sinthani kuchokera pamwambazi. Nthawi zina acetic acid imatha kukhudza kwambiri kufalikira kwa kuwala. Ndi bwino kugwiritsa ntchito asidi acetic pambuyo dilution. Chikoka chachikulu ndi chakuti zomwe zimakhudzidwa zimagwedezeka mofanana komanso ngati chiŵerengero cha dongosolo ndi chokhazikika (zina zimakhala ndi chinyezi ndipo zomwe zili ndi zosakhazikika, monga kukonzanso zosungunulira). M'malo mwake, pali zinthu zambiri. Ndi kukhazikika kwa zipangizo ndi ntchito za ogwira ntchito ophunzitsidwa bwino, zinthu zopangidwa ziyenera kukhala zokhazikika kwambiri. Kutumiza kwa kuwala sikudzapitirira kuchuluka kwa ± 2%, ndipo kufanana kwamagulu olowa m'malo kuyenera kuyendetsedwa bwino. M'malo mofanana, kuyatsa kopepuka kungakhale kwabwino.