Iyo mwenje transmittance yehydroxypropyl methylcellulose inonyanya kukanganiswa neanotevera mapoinzi:
1. Hunhu hwezvigadzirwa.
Chechipiri, mhedzisiro ye alkalization.
3. Process ratio
4. Chikamu che solvent
5. Mhedzisiro ye neutralization
Zvimwe zvinogadzirwa zvine makore semukaka wanyungudika, zvimwe zvichena semukaka, zvimwe zvakaita yero, uye zvimwe zvinojeka uye zviri pachena… Kugadzirisa dambudziko, gadzirisa kubva pane zvinotevera.Dzimwe nguva acetic acid inogona kukanganisa zvakanyanya kutapurirana kwechiedza.Zvakanakisisa kushandisa acetic acid mushure mekuderedzwa.Mhedzisiro huru ndeyekuti mhinduro yacho inomutswa zvakaenzana uye kana system reshiyo yakagadzikana (zvimwe zvinhu zvine hunyoro uye zvirimo hazvina kugadzikana, senge solvent inoshandiswa pakudzokorora).Kutaura zvazviri, pane zvinhu zvakawanda zviri kukanganisa.Kana michina yakagadzikana uye vashandi vakanyatsodzidziswa, kugadzirwa kunofanira kunge kwakanyatsogadzikana.Chiedza chekufambisa hachizopfuure huwandu hwe ± 2%, uye kutsiva kufanana kwemapoka anotsiva kunofanirwa kudzorwa zvakanaka.Panzvimbo pekufanana, kutapurirana kwechiedza kungave kwakanaka.
Zvinhu Zvinokanganisa Viscosity yeHydroxypropyl Methyl Cellulose
Yakakwira-viscosity hydroxypropyl methylcellulose haigone kuburitsa yakakwira cellulose chete nekupukuta uye kutsiva nitrogen mukugadzira.Kazhinji, kugadzirwa kwe-high-viscosity cellulose muChina hakugone kudzorwa.Nekudaro, kana chimbo chekuyeresa okisijeni chinogona kuiswa muketero, kugadzirwa kwe viscosity yayo kunogona kudzorwa nehunyanzvi.
made.Pamusoro pezvo, tichifunga nezve kutsiva kumhanya kwenitrogen, zviri nyore kugadzira zvigadzirwa zvepamusoro-viscosity zvisinei nekuti system yacho haina mhepo sei.Ehe, dhigirii repolymerization yedonje rakanatswa rakakosha zvakare.Kana izvo zvisingashande, zviite ne hydrophobic association.Kune vamiriri vemasangano munzvimbo ino muChina.Ndeupi rudzi rwemubatanidzwa mumiriri wekusarudza ane simba guru pakuita kwechigadzirwa chekupedzisira.Iyo yakasara okisijeni mu reactor inokonzera kuparara kwe cellulose uye kuderera kwema molecular uremu, asi yakasara okisijeni inogumira, chero bedzi mamorekuru akaputsika achibatanidzwazve, hazvisi zvakaoma kuita yakakwirira viscosity.Nekudaro, iyo saturation rate ine zvakawanda zvekuita nezviri mukati mehydroxypropyl.Mamwe mafekitari anongoda kuderedza mutengo uye mutengo, asi haadi kuwedzera zvirimo zvehydroxypropyl, saka mhando haigone kusvika pamwero wezvigadzirwa zvekunze zvakafanana.Chiyero chekuchengetedza mvura yechigadzirwa chine hukama hukuru nehydroxypropyl, asi kune iyo yese maitiro maitiro, inotaridzawo chiyero chekuchengetedza mvura, alkalization effect, chiyero chemethyl chloride uye propylene oxide, alkali concentration uye kuchengetedza mvura.Chiyero chekotoni yakanatswa inosarudza kushanda kwechigadzirwa.
Nguva yekutumira: May-23-2023