Hydroxypropylmethylrubicin (HPMC) is a cellulosic material, pulp kana donje rinogona kushandiswa kukwenenzvera pulp yehuni. Pamberi pe alkalization kana alkalization maitiro inofanira kuparadzwa. Kukuvadzwa kweMechanical kunogona kuparadza iyo yakaunganidzwa chimiro chepepa cellulose zvinhu, nekudaro ichidzikisa iyo polymerization uye crystallinity, ichiwedzera yayo chaiyo nzvimbo, nekudaro ichiwedzera matrix inogona kuva macromolecular ternary uye cellulose.
Hydroxymethylcellulose inoshandiswa se substrate mukugadzirwa kwemafuta. Iyo utility modhi inogona kupedzisa kushandiswa kweshuga, kuvandudza mwero wekushandiswa kwezvinhu, kuderedza zvakasara zve substrate mumvura yekuvirisa, uye kuderedza mutengo wekurasa mvura. Hunhu hwemusanganiswa hunobatsira pakukwenenzverwa kwebatch, fed-batch uye inoenderera mberi yekuvirisa, kudzivirira kushandiswa kwepakati zvikamu uye dilution mazinga, uye zvakare kufambisa kugadziridzwa kwemaitiro ekuvirisa. Sezvo HPMC iine basa rakafanana nemamwe ether anonyungudika mumvura, inogona kushandiswa semugadziri wemufirimu, thickener, emulsifier uye stabilizer yependi yelatex nependi inonyungudika nemvura inonyunguduka resin, ine kusakara kwakanaka kwekupfeka, kupfeka yunifomu uye kunamatira. kuvandudza tension yepasi, acid-base kugadzikana uye kuenderana nesimbi pigment.
Kuumbwa kwe hydroxypropylmethylcellulose (HPMC) yakakanganiswa, asi musimboti, asi substrate kurasikirwa, base..etherification, dissolution
Agent kupora kuburikidza necentrifugation, kuwacha, kuomesa uye kubata nharaunda yega yega yakapfuma muhunyanzvi hunyanzvi uye ruzivo.
Midziyo yekubatsira uye kuburikidza-yekutarisa zvinodzora zvichabatsira kuve nechokwadi chemhando yechigadzirwa uye yakavimbika yekugadzira system. Inokanganisa huwandu hwemvura mu hypromellose yakaoma-mix mortar's water-retaining hydroxypropyl methylcellulose ether mortar kukurudzira kuenderera kwemvura ye simenti, dhaka uye substrate kuwedzera nguva yekunamatira.
Pane chiitiko chikuru chekuchengetedza mvura, kuchengetedza mvura, kuchengetedza mwando ndeye putty poda, adhesion uye lubrication mabasa. Inoshandiswa zvakanyanya muindasitiri yekuvaka, indasitiri yependi uye mamwe akawanda maindasitiri, hydroxypropyl methylcellulose yakakosha kunekugadzirwa kwehydroxypropyl methylcellulose. Thermal gelation tembiricha yakakwira zvakanyanya kupfuura iyo yemethylcellulose. Lime nesoda hazvina mhedzisiro pakuita, asi zvinogona kukurumidza kuparara kwematrix uye kuwedzera viscosity. Kana polyvinyl doro, starch ether, yemiriwo chingamu uye hydroxypropyl methylcellulose pendi, nezvimwewo, iyo stock solution yeiyo iri pamusoro chimiro. Paunenge uchishandisa dhaka, gypsum, putty poda kana zvimwe zvinhu sekunamira, inogona kuvandudza kushanda uye kurebesa nguva yekushanda. Inogona kushandiswa kushongedza, kunama mataira, marble, mapurasitiki uye kuderedza kushandiswa kwesimende yenhema hunde. Mvura inochengetedza slurry mushure mekuoma haizotseki nekukurumidza, uye simba mushure mekuporesa rinovandudzwa.
Nguva yekutumira: Zvita-20-2022