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Nhanganyaya yependi yematombo chaiwo Pendi yematombo chaiyo imhando yependi ine mhedzisiro yekushongedza yakafanana negranite nemarble. Pendi yematombo chaiyo inonyanya kugadzirwa nehupfu hwematombo echisikigo ane mavara akasiyana-siyana, ayo anoshandiswa kune mhedzisiro yematombo ekutevedzera ekuvaka madziro ekunze, anozivikanwawo semvura...Verenga zvakawanda»
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Kuchengetwa kwemvura yakawanda kunogona kuita kuti simende ive nemvura yakakwana, kuwedzera simba rekubatana, uye panguva imwe chete, kunogona kuwedzera simba rekudhonza uye kuchekwa kwesimbi, kuvandudza zvikuru mhedzisiro yekuvaka uye kuvandudza mashandiro ebasa. Kushandisa hydroxypropyl methylc...Verenga zvakawanda»
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Kusanganiswa kunoita basa guru mukuvandudza mashandiro ekuvaka dhaka rakasanganiswa nemvura, asi kuwedzerwa kwedhaka rakasanganiswa nemvura kunoita kuti mutengo wezvinhu zvakagadzirwa nedhaka rakasanganiswa nemvura wakakwira zvakanyanya kupfuura wedhaka rechinyakare, iro rinoita kuti pave neanopfuura 40% yemutengo wezvinhu zvakagadzirwa nedhaka rakasanganiswa nemvura...Verenga zvakawanda»
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Cellulose ether ipolymer compound yakagadzirwa kubva ku cellulose yechisikigo kuburikidza ne etherification process, uye inyanzvi yekukora uye kuchengetedza mvura. Tsvagiridzo Nhoroondo MaCellulose ethers ave achishandiswa zvakanyanya mu dry-mixed mortar mumakore achangopfuura, anonyanya kushandiswa ndeamwe asiri eonic...Verenga zvakawanda»
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1. Matambudziko anowanzoitika muupfu hweputty Hunooma nekukurumidza. Izvi zvinokonzerwa nekuti huwandu hweupfu hwecalcium inowedzerwa muash (hwakanyanya kukura, huwandu hweupfu hwecalcium inoiswa mufomura yeputty hunogona kuderedzwa zvakakodzera) hune chekuita nehuwandu hwekuchengetedza mvura mufayibha, uye hune chekuitawo nekuoma...Verenga zvakawanda»
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Dura rinozvienzanisa rinogona kuvimba nehuremu hwaro kuti rigadzire hwaro hwakati sandara, hwakatsetseka uye hwakasimba pachigadziko chekuisa kana kubatanidza zvimwe zvinhu. Panguva imwe chete, rinogona kuita kuvaka kwakakura uye kwakanaka. Naizvozvo, kuyerera kwakawanda chinhu chakakosha pakuzvienzanisa...Verenga zvakawanda»
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Hydroxypropyl methylcellulose (HPMC) imhando ye non-ionic cellulose ether yakagadzirwa ne natural polymer material cellulose kuburikidza nemaitiro akasiyana-siyana emakemikari. Hydroxypropylmethylcellulose (HPMC) ihupfu huchena husina hwema, husina kunaka, husina chepfu hunogona kunyungudutswa mumvura inotonhora kuti huite serinopenya ...Verenga zvakawanda»
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Emulsion uye upfu hwelatex hunozonyungudika hunogona kuumba simba guru rekusunga uye simba rekubatanidza pazvinhu zvakasiyana mushure mekuumbwa kwefirimu, zvinoshandiswa sechipiri chinosunga muhari kuti chisanganiswe nesimende, simende uye polymer zvisina kugadzirwa. Ita kuti simba rienderane...Verenga zvakawanda»
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HPMC inogona kukamurwa kuita mhando yekuvaka, mhando yechikafu uye mhando yemishonga zvichienderana nechinangwa. Parizvino, zvigadzirwa zvakawanda zvemumba ndezvemhando yekuvaka, uye mumhando yekuvaka, huwandu hweputty powder hwakakura kwazvo. Sanganisa HPMC powder nehuwandu hwakawanda hwehupfu...Verenga zvakawanda»
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Kudzivirira kwekunze kwemadziro ekunze ndekwekuisa jasi rekudzivirira kupisa pachivako. Jasi iri rekudzivirira kupisa harifanirwe kungochengetedza kupisa chete, asiwo kuva rakanaka. Parizvino, sisitimu yekudzivirira madziro ekunze yenyika yangu inonyanya kusanganisira system yekudzivirira mapuranga epolystyrene...Verenga zvakawanda»
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Cellulose ipolysaccharide inoumba mhando dzakasiyana dzeethers dzinonyungudika mumvura. Cellulose thickeners ipolymers dzisinganyungudike mumvura. Nhoroondo yekushandiswa kwayo yakareba kwazvo, inopfuura makore makumi matatu, uye kune mhando dzakawanda. Ichiri kushandiswa munenge pendi dzese dzelatex uye ndiyo inonyanya kushandiswa mu thickeners...Verenga zvakawanda»
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Basa reupfu hwelatex hunonyungudika muindasitiri yekuvaka harigone kurerutswa. Sechinhu chinoshandiswa zvakanyanya kuwedzera, zvinogona kutaurwa kuti kutaridzika kweupfu hwelatex hunonyungudika kwakasimudzira kunaka kwekuvaka nematanho anopfuura rimwe. Chikamu chikuru cheupfu hwelatex...Verenga zvakawanda»