Dissolution nzira yehydroxypropyl methylcellulose (HPMC)

Dissolution nzira yehydroxypropyl methylcellulose (HPMC)

Hydroxypropyl methylcellulose (HPMC) inoshandiswa zvakanyanya mukuvaka zvinhu, coatings, synthetic resin, ceramics, mushonga, chikafu, machira, kurima, zvizorwa, fodya uye mamwe maindasitiri. Hydroxypropyl methylcellulose (HPMC) isiri-ionic cellulose ether yakagadzirwa kubva kune yakasikwa polymer material cellulose kuburikidza nehurongwa hwemakemikari maitiro. Hydroxypropylmethylcellulose (HPMC) inonhuhwirira, isinganakidze, isina chepfu chena poda inogona kunyungudutswa mumvura inotonhora kuti iite yakajeka viscous mhinduro. Iine maitiro ekukora, kusunga, kuparadzira, emulsifying, firimu-kuumba, kumisa, adsorbing, gelling, pamusoro pekushanda, kuchengetedza unyoro nekudzivirira colloid.

Iyo nzira yekumisa yehydroxypropyl methylcellulose (HPMC):

Ichi chigadzirwa chinoputika uye chinopararira mumvura inopisa pamusoro pe85 ° C, uye inowanzonyungudutswa nenzira dzinotevera:

1. Tora 1/3 yehuwandu hunodiwa hwemvura inopisa, simbisa kuti uparadze zvachose chigadzirwa chakawedzerwa, uye wobva wawedzera imwe yakasara yemvura inopisa, iyo inogona kuva mvura inotonhora, kana kunyange mvura yechando, uye simbisa kusvikira kutonhora kwakakodzera (20). °C), ipapo ichanyungudika zvachose. the

2. Dry kusanganisa uye kusanganisa:

Muchiitiko chekusanganiswa nemamwe mapeji, inofanira kunge yakanyatsosanganiswa nehupfu isati yawedzera mvura, zvino inogona kunyungudutswa nekukurumidza pasina agglomeration. the

3. Organic solvent wetting nzira:

Tanga waparadzira chigadzirwa mu organic solvent kana kunyorova ne organic solvent, wobva wawedzera kumvura inotonhora kuti inyunguruke zvakanaka.