Hydroxypruppyl methyl cellulose (HPMC), iyo zvinhu zvakabikwacellulose, inogona kunatswa machira kana matanda emapuranga. Izvo zvinodikanwa kuti ubudise iyo isati yasvika kana panguva yekuita kwealkalization. Iyo purakisization inoitwa neyechina simba. Paradza chimiro chakaunganidzwa che cellulose zvigadzirwa zvekudzora crystallinity uye kuwedzera nzvimbo yayo yepamusoro, nekukasira mapoka ehurongwa hwemafari mapoka emarinari maclomolecular glucose
Hydroxypruppyl methyl cellulose (HPMC)Inoshandiswa seyakaburitswa-mbichana substrate kugadzira mafuta shuga, iyo inogadzirisa huwandu hwezvinhu zvekushandisa, kuderedza huwandu hwenhamba mufiramu, uye kuderedza mutengo wekurapwa kwemarara. Hunhu hwemethyl cellulosevanokodzera kuongororwa kwe batch, Fed-batch uye kuenderera mberi kwemaitiro ekurima, vachidzivirira matambudziko akatevedzana sekudzora kuumbwa kweiyo svikiro uye mwero wedhiri; Panguva imwecheteyo, zvakare zvakare kubereka kumitemo yeiyo ferement maitiro. Nekuti zvivakwa zvehydroxypruppyl methyl cellulose (HPMC)zvakafanana nehumwe dender-soluble madhayera-firimu mumiririri, emulsifieri, exluizer coatings Zvivakwa uye kuderedza, uye kwave kuvandudza nzvimbo yekunetsana, kugadzikana kuAcid naAlkali, uye kuwirirana nesimbi pigment.
Hydroxypruppyl methyl cellulose (HPMC)ine mhedzisiro yakanaka seyakakoshesa chena-chena-yakavakirwa polyvinyl acetate machira. Degree rekutsiva kwecellulose etherinowedzera, uye kupikisana napakati mabhariti uye kugura kunowedzerwawo.
Kunyangwe iyo musimboti weiyo ernthesis yehynthesis ye hydroxyprupyl methylcellose (HPMC) haina kuomarara, iri eslalization, mbishi inopwanya, uye alkalization. Nzvimbo dzakasiyana-siyana dzekuwedzera, solvent kupora, centrifugal kupatsanurwa, kugeza uye kuoma kunosanganisira nhamba huru yeakakosha tekinoroji uye ruzivo rwakapfuma.
Zvemhando dzakasiyana dzezvigadzirwa, nharaunda imwe neimwe ine mamiriro ekudzora ekudzora, sekupisa, nguva, kudzvanywa uye kudzora kwekuyerera. Zvishandiso zvebetsero uye zviridzwa zvekutonga ndizvo zvakavimbika uye zvinobatsira vimbiso yekugadzikana kwechigadzirwa chechigadzirwa uye yakavimbika kugadzirwa system.
Hunhu hwechigadzirwa chehydroxypruppyl methyl cellulose:
1. Zvivakwa: Ichi chigadzirwa ipfuhwe chena, uye haina kusimba, isina kurwadza uye isina-chepfu.
2. Kuchengetwa kwemvura: Nekuti ichi chigadzirwa chinogona kutora mvura kakawanda kurema kupfuura pachayo. Chengetedza kuchengetwa kwemvura yakakwirira murofa, gypsum, pendi uye zvimwe zvigadzirwa.
3. Ichi chigadzirwa chinogona kunyungudutswa mumvura inotonhora kuti ugadzire turmarlar vevent sol.
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5. Kupokana kwemunyu Panyaya yeiyo yakawandisa elektrolyte, inogona kukonzera kuti Glas kana kunyorova.
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Kutumira Nguva: Nov-29-20
