Zinthu Zomwe Zimakhudza Kupanga kwa Hydroxypropyl Methyl Cellulose Viscosity!

Chizindikiro cha kukhuthala kwa hydroxypropyl methylcellulose ndi chizindikiro chofunikira kwambiri. Kukhuthala sikuyimira kuyera. Kukhuthala kwa cellulose HPMC kumadalira njira yopangira. Malo osiyanasiyana ogwiritsira ntchito ayenera kusankha cellulose HPMC yokhala ndi kukhuthala kosiyanasiyana, osati kukhuthala kwa cellulose HPMC, ndibwino! Choyenera ndi chabwino!

1. Kulamulira kukhuthala

Hydroxypropyl methylcellulose yokhala ndi kukhuthala kwakukulu singapange cellulose yambiri pongogwiritsa ntchito vacuum cleaner ndikusintha nayitrogeni popanga. Kawirikawiri, kupanga cellulose yokhala ndi kukhuthala kwakukulu ku China sikungathe kulamulidwa. Komabe, ngati choyezera mpweya wochepa chingayikidwe mu ketulo, kupanga kwa kukhuthala kwake kungayang'aniridwe mwaluso.

2. Kugwiritsa ntchito wothandizira mgwirizano

Kuphatikiza apo, poganizira liwiro losinthira la nayitrogeni, ndikosavuta kupanga zinthu zokhuthala kwambiri mosasamala kanthu kuti dongosololi ndi lopanda mpweya wotani. Zachidziwikire, kuchuluka kwa polymerization ya thonje loyengedwa ndikofunikiranso. Ngati sizikugwira ntchito, ndiye chitani ndi mgwirizano wa hydrophobic. Pali othandizira ogwirizana m'derali ku China. Mtundu wa wothandizira wogwirizana womwe mungasankhe umakhudza kwambiri magwiridwe antchito a chinthu chomaliza.

3. Kuchuluka kwa hydroxypropyl

Mpweya wotsala mu reactor umayambitsa kuwonongeka kwa cellulose ndi kuchepa kwa kulemera kwa mamolekyu, koma mpweya wotsalawo ndi wochepa, bola mamolekyu oswekawo atalumikizidwanso, sikovuta kupanga kukhuthala kwakukulu. Komabe, kuchuluka kwa kukhuta kumakhudzana kwambiri ndi kuchuluka kwa hydroxypropyl. Mafakitale ena amangofuna kuchepetsa mtengo ndi mtengo, koma sakufuna kuwonjezera kuchuluka kwa hydroxypropyl, kotero mtundu wake sungafikire pamlingo wa zinthu zofanana zakunja.

4. Zinthu zina

Kuchuluka kwa madzi omwe amasungidwa mu chinthuchi kumalumikizana bwino ndi hydroxypropyl, koma pa njira yonse yogwirira ntchito, imazindikiranso kuchuluka kwa madzi omwe amasungidwa, mphamvu ya alkali, chiŵerengero cha methyl chloride ndi propylene oxide, kuchuluka kwa alkali ndi kusunga madzi. Chiŵerengero cha thonje loyengedwa chimatsimikizira momwe chinthucho chimagwirira ntchito.