Zomwe Zimakhudza Kupanga kwa Hydroxypropyl Methyl Cellulose Viscosity

Mndandanda wa viscosity index wa hydroxypropyl methylcellulose ndiwofunikira kwambiri.Kukhuthala sikuyimira chiyero.Kukhuthala kwa cellulose HPMC kumatengera kupanga.Zosiyanasiyana ntchito mapangidwe ayenera kusankha mapadi HPMC ndi viscosities osiyana, osati apamwamba mamasukidwe akayendedwe a mapadi HPMC, bwino!Choyenera ndi choyenera.

Viscosity Control
1. Popanga high-viscosity hydroxypropyl methylcellulose, vacuuming ndi nayitrogeni m'malo mwake sangathe kupanga mapadi apamwamba kwambiri.Nthawi zambiri, kupanga ma cellulose apamwamba kwambiri ku China sikungawongoleredwe.Komabe, ngati mita ya okosijeni imatha kuyikidwa mu ketulo, kupanga mamasukidwe ake kutha kuwongoleredwa mwachinyengo.

Kugwiritsa ntchito wothandizira
2. Kuonjezera apo, poganizira kuthamanga kwa m'malo mwa nayitrogeni, n'zosavuta kupanga zinthu zowoneka bwino kwambiri mosasamala kanthu kuti dongosololi ndi lopanda mpweya.Zachidziwikire, kuchuluka kwa ma polymerization a thonje woyengedwa ndikofunikiranso.Ngati izi sizikugwira ntchito, chitani ndi hydrophobic association.Pali othandizira othandizira mderali ku China.Ndi mtundu wanji wa othandizira omwe angasankhe ali ndi chikoka chachikulu pakuchita kwa chinthu chomaliza.

Zomwe zili ndi hydroxypropyl
3. Oxygen yotsalira mu riyakitala imabweretsa kuwonongeka kwa mapadi ndi kuchepa kwa maselo.Komabe, ngati mpweya wotsalirawo uli ndi malire, malinga ngati mamolekyu osweka alumikizidwanso, sikovuta kupanga kukhuthala kwakukulu.Komabe, kuchuluka kwa machulukidwe kumakhudzana kwambiri ndi zomwe zili mu hydroxypropyl.Mafakitale ena amangofuna kuchepetsa mtengo ndi mtengo, koma sakufuna kuwonjezera zomwe zili mu hydroxypropyl, kotero kuti khalidweli silingathe kufika pamlingo wazinthu zakunja zofanana.

zinthu zina
4. Mlingo wosungira madzi wa mankhwalawa uli ndi ubale wabwino kwambiri ndi hydroxypropyl, komanso umatsimikizira kuchuluka kwake kwa kusungirako madzi, zotsatira za alkalization, chiŵerengero cha methyl chloride ndi propylene oxide, ndi ndende ya alkali pazochitika zonse.Chiyerekezo cha madzi ndi thonje woyengedwa zimadalira momwe mankhwalawo amagwirira ntchito.