Zvinhu zvakati wandei zvinokanganisa kuchengetwa kwemvura yehydroxypropyl methylcellulose

Hydroxypropyl methylcellulose (HPMC) isiri-ionic cellulose ether yakagadzirwa kubva kune yakasikwa polymer material cellulose kuburikidza nehurongwa hwemakemikari maitiro. Ihwo hupfu husina kunhuwa, husina muchetura uye husina chepfu hunoita hupfu hwakachena kana husina makore hushoma hwe colloidal mumvura inotonhora. Iine thickening, kusunga, kuparadzira, emulsifying, film-forming, suspending, adsorbing, gelling, surface active, hunyoro-kuchengetedza uye inodzivirira colloid properties. Hydroxypropyl methyl cellulose uye methyl cellulose inogona kushandiswa mukuvaka, indasitiri yependi, synthetic resin, indasitiri yeceramic, mushonga, chikafu, machira, zvekurima, makemikari emazuva ese uye mamwe maindasitiri.

Kuchengetwa kwemvura kwehydroxypropyl methylcellulose HPMC chigadzirwa pachayo kunowanzo kukanganiswa nezvinhu zvinotevera:

1. Kuwanda kwehydroxypropyl methylcellulose HPMC yakawedzerwa Iyo yakawanda yakawanda ye cellulose ether HPMC yakawedzerwa, iyo yakakwirira yehuwandu hwekuchengetedza mvura uye zviri nani kuchengetedza mvura. Muchikamu che 0.25-0.6% kuwedzera, chiyero chekuchengetedza mvura chinowedzera nokukurumidza nekuwedzera kwekuwedzera kwekuwedzera; apo huwandu hwekuwedzera hunowedzera kuwedzera, kuwedzera kwemaitiro ekuchengetwa kwemvura kunononoka.

2. HPMC viscosity ye hydroxypropyl methylcellulose Apo viscosity yeHPMC inowedzera, chiyero chekuchengetedza mvura chinowedzerawo; apo viscosity inosvika kune imwe nhanho, kuwedzera kwehuwandu hwekuchengetedza mvura kunowanzova munyoro.

3. Hydroxypropyl methylcellulose HPMC thermal gel tembiricha Kupisa kwejeri rekushisa, chiyero chekuchengetedza mvura yakakwirira; kana zvisina kudaro, mwero wakaderera wekuchengetedza mvura.

4. Hydroxypropyl methylcellulose HPMC homogeneity HPMC ine maitiro akafanana, methoxyl uye hydroxypropoxyl inoparadzirwa zvakaenzana, uye chiyero chekuchengetedza mvura chakakwirira.