Muchivako chekudzivirira dhaka uye putty powder, ukuru hwehydroxypropyl methylcellulose kuchena kunobata zvakananga kunaka kwekugadzirwa kweinjiniya, saka ndezvipi zvinhu zvinokanganisa kuchena kwehydroxypropyl methylcellulose? Kuti ndikubatsire kupindura mubvunzo uyu nhasi.
Mukugadzira hydroxypropyl methylcellulose, iyo okisijeni inosara mugeti rekuita inotungamira mukuderedzwa kwehydroxypropyl methylcellulose uye kuderedza huremu hwemamorekuru. Nekudaro, iyo yakasara okisijeni ishoma, saka hazvina kuoma kubatanidza zvakare mamorekuru akatyoka. Iyo huru saturation rate uye hydroxypropyl yemukati ine hukama hukuru, mamwe mafekitori anongoda kuderedza mutengo uye mutengo, haadi kuvandudza zvirimo zvehydroxypropyl, saka mhando haigone kusvika pamwero wezvigadzirwa zvekunze zvakafanana.
Mwero wekuchengetedza mvura wehydroxypropyl methylcellulose uye hydroxypropyl zvakare ine hukama hukuru, uye kune iyo yese maitiro maitiro, hydroxypropyl methylcellulose inosarudzawo mwero wekuchengetedza mvura yehydroxypropyl methylcellulose. Mhedzisiro yealkalization, chiyero chekloromethane kune propylene oxide, kuwanda kwealkali uye chiyero chemvura kune yakanatswa donje zvese zvinotarisa kushanda kwechigadzirwa.
Hunhu hwezvakagadzirwa, alkalization effect, process ratio control, solvent ratio uye neutralization effect, zvese zvinotarisa kunaka kwehydroxypropyl methyl cellulose, imwe hydroxypropyl methyl cellulose yakaitwa kunyungudika mushure semukaka ine makore akawanda, mamwe machena mukaka, mamwe yellow, mamwe. zvakajeka uye zvakajeka. Kana iwe uchida kuzvigadzirisa, gadzirisa kubva pane zviri pamusoro apa. Dzimwe nguva acetic acid inogona kukanganisa zvakanyanya transmittance, acetic acid inonyanya kushandiswa mushure mekunyungudutswa, iyo yakakura kukanganisa kana reaction inobvongodza iyunifomu, system reshiyo yakagadzikana (humwe hunyoro hwezvinhu, zvirimo hazvina kugadzikana, sekudzoreredza kwezvinonyungudutsa), kutaura zvazviri, zvinhu zvakawanda zvinokanganiswa. Nekugadzikana kwemidziyo uye kushanda kwevashandi vakadzidziswa, zvigadzirwa zvinogadzirwa zvinofanirwa kunge zvakagadzikana. Iyo yekufambisa haifanirwe kudarika ± 2%, uye kutsiva kufanana kweboka rinotsiva kunofanirwa kudzorwa zvakanaka. Uniform substitution, transmittance inofanira kuva yakanaka.
Naizvozvo, kunaka kwechigadzirwa mhando kunotemerwa neyakagadzirwa, tekinoroji yekugadzira, uye zvimwe zvinhu. Kudzora kwakasimba chete kubva kumagumo kusvika kumagumo kunogona kugadzira zvigadzirwa zvine hutano hwakagadzikana.
Nguva yekutumira: Sep-14-2022