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Huwandu hweHPMC hunoshandiswa mukushanda hunoenderana nemamiriro ekunze, tembiricha, mhando yeupfu hwecalcium yemuno, fomura yeupfu hweputty uye "mhando inodiwa nevatengi". Kazhinji, huri pakati pe4 kg ne5 kg. Semuenzaniso: hupfu hwakawanda hweputty muB...Verenga zvakawanda»
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Imwe yemisiyano mikuru pakati pedhaka rakasanganiswa nemvura nedhaka rechinyakare ndeyekuti dhaka rakasanganiswa nemvura rinogadziriswa nemakemikari mashoma. Kuwedzera chimwe chinhu chinowedzerwa mudhaka rakasanganiswa nemvura kunonzi primary modry powder modry ...ification, kuwedzera zvinhu zviviri kana kupfuura kunonzi secondary modry modry modry modry modry modry modry modry modry modification...Verenga zvakawanda»
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Gypsum yekubvisa sarufa igesi inoburitswa nekupiswa kwemafuta ane sarufa (marasha, peturu), marara akaoma emaindasitiri anogadzirwa panguva yekucheneswa kwekubvisa sarufa, uye gypsum ye hemihydrate (makemikari fomura CaSO4· 0.5H2O), mashandiro acho akafanana neaya e na...Verenga zvakawanda»
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Hydroxypropyl methylcellulose (HPMC) inonyanya kuita basa rekuchengetedza mvura, kukora uye kuvandudza mashandiro ekuvaka mu simende, gypsum nezvimwe zvinhu zveupfu. Kushanda zvakanaka kwekuchengetedza mvura kunogona kudzivirira hupfu kuti husaome uye husatsemuke nekuda kwemvura yakawanda...Verenga zvakawanda»
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Mumakore achangopfuura, nekuvandudzwa kuri kuramba kuchiitwa tekinoroji yekudzivirira madziro ekunze, kufambira mberi kuri kuramba kuchiitwa tekinoroji yekugadzira cellulose, uye hunhu hwakanaka hweHPMC pachayo, HPMC yave ichishandiswa zvakanyanya muindasitiri yekuvaka. Kuti tiongorore zvakanyanya mashandiro ayo ...Verenga zvakawanda»
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Zita rekuti HPMC muchiChinese nderekuti hydroxypropyl methylcellulose. Haina ionic uye inowanzoshandiswa sechinhu chinochengetedza mvura mudhaka rakaoma rakasanganiswa. Ndiyo inonyanya kushandiswa kuchengetedza mvura mudhaka. Maitiro ekugadzira HPMC chigadzirwa che ether chakagadzirwa ne polysaccharide chinogadzirwa ne...Verenga zvakawanda»
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1. Matambudziko anowanzoitika muupfu hweputty Kuomesa nekukurumidza kunonyanya kukonzerwa nehuwandu hweupfu hwecalcium hwedota hwakaiswa (hwakanyanya kukura, huwandu hweupfu hwecalcium hwedota hunoshandiswa mufomura yeputty hunogona kuderedzwa zvakakodzera) hune chekuita nehuwandu hwekuchengetedza mvura hwefiber, uye hune chekuitawo nekuoma kwe...Verenga zvakawanda»
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Mumortar yakasanganiswa, chero bedzi cellulose ether diki ichigona kuvandudza mashandiro emortar yakanyorova, zvinogona kuonekwa kuti cellulose ether chinhu chikuru chinokanganisa mashandiro emortar. Kusarudzwa kwemhando dzakasiyana, viscosities dzakasiyana, pa...Verenga zvakawanda»
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Chinhu chinonyanya kukosha che cellulose ether kuchengetedza mvura muzvinhu zvekuvaka. Pasina kuwedzerwa cellulose ether, chidimbu chakatetepa chemortar itsva chinooma nekukurumidza zvekuti simende haigone kunyorova nenzira yakajairika uye mortar haigone kuoma uye kuwana kubatana kwakanaka. Pa...Verenga zvakawanda»
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Zvigadzirwa zvemavhitamini zvese zvinobva mudonje remuchina kana huni, izvo zvinogadzirwa kuburikidza ne etherification. Zvigadzirwa zvakasiyana zve cellulose zvinoshandisa etherifying agents dzakasiyana. Etherifying agent inoshandiswa mu hydroxyethyl cellulose (HEC) i ethylene oxide, uye etherifying agent inoshandiswa mu hydroxy...Verenga zvakawanda»
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Kushandiswa kwehydroxypropyl methylcellulose mumortar yekuvaka. Kuchengetedza mvura yakawanda kunogona kuita kuti simende ive nemvura yakakwana, kuwedzera simba rebond zvakanyanya, uye panguva imwe chete, inogona kuwedzera simba rekudhonza uye kuchekwa kwesimbi, uye kugadzirisa zvakanyanya...Verenga zvakawanda»
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A. Kukosha kwekuchengetedza mvura Kuchengetedza mvura kwedhaka kunoreva kugona kwedhaka kuchengetedza mvura. Dhaka risina mvura yakawanda rinowanzobuda ropa uye kuparadzaniswa panguva yekufambisa nekuchengetedza, kureva kuti, mvura inoyangarara pamusoro, uye jecha nesimende inonyura pasi. Inofanira kunge ...Verenga zvakawanda»