Hydroxypropyl methylcellulose (HPMC), mbishi cellulose, inogona kunatswa donje kana huni pulp, zvakakosha kwazvo kuipwanya isati yasvika alkalization kana panguva yealkalization, uye kupwanya kuri kuburikidza nemagetsi simba Kuparadza iyo aggregate chimiro che cellulose mbishi zvinhu kuderedza dhigirii re crystallinity uye polymerization, inowedzera nzvimbo yayo, nekudaro ichivandudza kuwanikwa uye kemikari kuita kugona kweiyo reaction reagent kumapoka matatu ehydroxyl ari paglucose mhete yeboka re cellulose macromolecule.
Hydroxypropyl methylcellulose (HPMC) inoshandiswa seyakagadziriswa substrate kugadzira mafuta, iyo inogona kuona kushandiswa kweshuga yakazara, kuvandudza mwero wekushandiswa kwezvinhu zvakabikwa, kuderedza huwandu hwasara hwe substrate mumuto wekuvirisa, uye kuderedza mutengo wemvura yakasviba. kurapwa.Iyi hydroxypropyl methylcellulose Maitiro emethylcellulose anobatsira pakugadzirisa batch, fed-batch uye inoenderera mberi yekuvirisa maitiro, kudzivirira nhevedzano yezvinetso zvakaita sekudzora kuumbwa kwepakati uye dilution rate;iyo inobatsirawo kukugadzirisa kwekuvirisa.Sezvo kushanda kwehydroxypropyl methylcellulose (HPMC) kwakafanana nemamwe ether-soluble ethers, inogona kushandiswa mu latex pendi uye mvura-inonyunguduka resin pendi zvikamu semugadziri wefirimu, thickener, emulsifier uye stabilizer, nezvimwewo. yakanaka kupfeka kuramba, kuyera uye kunamatira, uye yakavandudza kushushikana kwepasi, kugadzikana kune asidhi uye alkali, uye kuenderana kune esimbi pigment.
Hydroxypropyl methylcellulose (HPMC) ine mhedzisiro yakanaka seyakakora yemvura yakachena-yakavakirwa polyvinyl acetate pendi.Iyo dhigirii yekutsiva cellulose ether inowedzera, uye kuramba kukukurwa kwebhakitiriya kunowedzerwawo.
Kunyangwe iyo etherification synthesis musimboti wehydroxypropyl methyl cellulose (HPMC) isina kuoma, inofanirwa kuve yakagadziriswa, mbishi zvinhu kuputika, uye alkaliized.Nzvimbo yega yega ye etherification, solvent recovery, centrifugation, washing and drying inosanganisira huwandu hukuru hwetekinoroji yakakosha uye ruzivo rwakapfuma.
Kune marudzi akasiyana ezvigadzirwa, nharaunda yega yega ine yazvino kudzora mamiriro, senge tembiricha, nguva, kudzvanywa uye kuyerera kwezvinhu.Midziyo yekubatsira uye midziyo yekudzora ivimbiso yakanaka kune yakagadzikana chigadzirwa mhando uye yakavimbika kugadzirwa masisitimu.
Nguva yekutumira: Zvita-15-2022