Hydroxypropyl Methylcellulose sezvinhu zvinoparadzanisa, zvigadzirwa zvinowanikwa zvine zvidimbu zvakarongwa uye zvakasununguka, zvine huremu hwakakwana uye mashandiro akanaka ekugadzirisa. Zvisinei, kushandiswa kweHydroxypropyl Methylcellulose chete kunogona kubatsira pakusachinja-chinja kwakanaka kweresin. Kushanda kwese kweresin kwakashata. Kushandiswa kwehydroxypropyl methylcellulose pamwe chete nedhigirii rakasiyana realcohol repolyvinyl alcohol kunogona kuita kuti mashandiro ezvigadzirwa ave nani, mhando yacho ive nyore kudzora uye panguva imwe chete kunogona kuderedza mutengo. Chinhu chinoparadzira ndicho chinhu chikuru chinokanganisa chimiro chezvikamu zvepolyvinyl chloride resin. Kuderera kwekumanikidzwa kwemvura ye general dispersing agents uye interfacial tension neVinyl chloride monomer, madonhwe eVCM anogona kupararira zvishoma. Saka dhayamita yezvikamu zvePVC resin ichave diki. Kusimba kwekudzivirira kwechinhu chinoparadzira, kuswedera pedyo kwezvikamu zvePVC resin zvinowanikwa uye kuderera kweporosity. Uye kubatana kwepakati pegranular kwakaomawo, saka zviri nyore kugadzira maresini.
Semuenzaniso, muchirongwa chekupararira kwePVA neHPC, kana PVA iine alcoholization yakakwira, kushushikana kwepamusoro kwemvura kunowedzera uye kugona kwekudzivirira kwakasimba, nepo huwandu hwakati hwehydroxypropyl methylcellulose hune mhedzisiro yakanaka yekupararira. Saka, kushandisa PVA ine alcoholization yakakwira senzira yekutanga.
chinhu chinoparadzira, uye chinosanganisa
huwandu hwakati hwehydroxypropyl methylcellulose
senzira yekuparadzira ye suspension polymerization, zviri nyore kugadzirira PVC resin inogona kusangana nezvinodiwa zve particle morphology. Semuenzaniso, mu compound dispersion system ye PVA ne HPC, alcoholization degree ye PVA yakakwira, kushushikana kwepamusoro kwemvura kuchava kukuru uye simba rekudzivirira richava rakasimba, nepo huwandu hwakati hwe hydroxypropyl methylcellulose huine mhedzisiro yakanaka yekuparadzira.
Nguva yekutumira: Kurume-17-2022