Iyo viscosity index yehydroxypropyl methylcelluloseindekisi yakakosha.Iyo viscosity haimiriri kuchena.Iyo viscosity ye cellulose HPMC zvinoenderana nemaitiro ekugadzira.Nzvimbo dzakasiyana dzekushandisa dzinofanira kusarudza cellulose HPMC ine maviscosities akasiyana, kwete iyo yakakwira viscosity ye cellulose HPMC, zviri nani!Zvakarurama ndizvo √
Viscosity Control
1. High-viscosity hydroxypropyl methylcellulose haigoni kubudisa cellulose yakakwirira kwazvo chete nekutsvaira uye kutsiva nenitrogen.Kazhinji, kugadzirwa kwe-high-viscosity cellulose muChina hakugone kudzorwa.Nekudaro, kana chimbo chekuyeresa okisijeni chinogona kuiswa muketero, kugadzirwa kwe viscosity kunogona kudzorwa zvekugadzira.
Kushandisa associative agents
2. Mukuwedzera, tichifunga nezvekutsiviwa kwe nitrogen, uye panguva imwe chete, zviri nyore kwazvo kubudisa zvigadzirwa zvepamusoro-viscosity pasinei nokuti inodzivirira sei mhepo.Ehe, dhigirii repolymerization yedonje rakanatswa rakakosha zvakare.Kana izvo zvisingashande, zviite ne hydrophobic association.Kune mudzimba associative agents mune izvi.Ndeupi rudzi rweassociative agent inosarudzwa ine simba guru pakuita kwechigadzirwa chekupedzisira.
Hydroxypropyl content
3. Okisijeni yakasara mu reactor inotungamirira pakuora kwe cellulose uye kuderedzwa kwehuremu hwema molecular, asi okisijeni yakasara ishoma.Hazvina kuoma kuita yakakwira viscosity chero bedzi mamorekuru akatyoka achibatanidzwazve.Nekudaro, mwero wekuzara kwemvura unoenderana zvakanyanya nezviri mukati mehydroxypropyl.Mamwe mafekitari anongoda kuderedza mutengo uye mutengo, uye haadi kuwedzera zvirimo zvehydroxypropyl, saka mhando haigone kusvika pamwero wezvigadzirwa zvekunze zvakafanana.
zvimwe zvinhu
4. Chiyero chekuchengetedza mvura kwechigadzirwa chine hukama hukuru nehydroxypropyl, asi kune iyo yese maitiro ekuita, inogadzirisawo chiyero chekuchengetedza mvura, mhedzisiro yealkalization, chiyero chemethyl chloride uye propylene oxide, uye kusangana kwealkali. .Uye chiyero chemvura kukotoni yakanatswa inosarudza kushanda kwechigadzirwa.
Nguva yekutumira: Oct-19-2022