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1 Ruzivo rwekutanga Mubvunzo 1 Pane nzira ngani dzekuvaka dzekunamira mataira netiles? Mhinduro: Maitiro ekunamira mataira eceramic anowanzo kamurwa kuita mhando nhatu: nzira yekunamira kumashure, nzira yekunamira pasi (inozivikanwawo senzira yetrowel, nzira yekunamira yakatetepa), uye nzira yekubatanidza...Verenga zvakawanda»
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1 Matambudziko anowanzoitika muupfu hweputty yemadziro: (1) Hunooma nekukurumidza. Izvi zvinokonzerwa nekuti huwandu hweupfu hwecalcium yedota hunowedzerwa (hwakanyanya kukura, huwandu hweupfu hwecalcium yedota hunoshandiswa mufomura yeputty hunogona kuderedzwa zvakakodzera) hune chekuita nehuwandu hwekuchengetedza mvura yefiber, uye hune chekuitawo ne...Verenga zvakawanda»
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Guruu remataira, rinozivikanwawo seguruu remataira eceramic, rinonyanya kushandiswa kunamira zvinhu zvekushongedza zvakaita semarata eceramic, mataira akatarisana, uye mataira epasi. Zvinhu zvikuru zvaro kusimba kwekubatana kwakasimba, kuramba mvura, kuramba kuomeswa nechando, kuramba kukwegura zvakanaka uye kuvaka kuri nyore. I...Verenga zvakawanda»
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Hydroxypropyl methylcellulose HPMC imhando ye non-ionic cellulose mixed ether. Kusiyana ne ionic methyl carboxymethyl cellulose mixed ether, haishande nesimbi dzinorema. Nekuda kwehuwandu hwakasiyana hwe methoxyl uye hydroxypropyl mu hydroxypropyl methylcellulose uye v...Verenga zvakawanda»
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Cellulose ether ipolymer yakagadzirwa kubva kucellulose yechisikigo kuburikidza nekuchinja kwemakemikari. Cellulose ether inobva kucellulose yechisikigo. Kugadzirwa kwecellulose ether kwakasiyana nemapolymer ekugadzira. Chinhu chayo chakakosha icellulose, compound yepolymer yechisikigo. Nekuda kwe ...Verenga zvakawanda»
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Pfupiso: 1. Chinhu chinonyorovesa uye chinoparadzira 2. Chinhu chinobvisa tsvina 3. Chinhu chinokora 4. Zvinhu zvinogadzira firimu 5. Chinhu chinodzivirira ngura, chinodzivirira kuvhuvha uye chinodzivirira algae 6. Zvimwe zvinhu zvinowedzerwa 1 Chinhu chinonyorovesa uye chinoparadzira: Machira emvura anoshandisa mvura sechinhu chinonyungudutsa kana chinoparadzira, uye mvura ine dielectric con...Verenga zvakawanda»
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Chii chinoshandiswa nemushonga wekuchengetedza mvura wakasanganiswa mu gypsum powder material? Mhinduro: plastering gypsum, bonded gypsum, caulking gypsum, gypsum putty nezvimwe zvinhu zvekuvaka zvehupfu. Kuti kuvaka kuve nyore, gypsum retarders dzinowedzerwa panguva yekugadzira kuti dziwedzere ...Verenga zvakawanda»
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1. Chii chinonyanya kushandiswa nehydroxypropyl methylcellulose (HPMC)? HPMC inoshandiswa zvakanyanya muzvinhu zvekuvaka, machira, maresini ekugadzira, zviumbwa zvedongo, mishonga, chikafu, machira, kurima, zvizoro, fodya nedzimwe nzvimbo. HPMC inogona kukamurwa kuita giredhi rekuvaka, giredhi rechikafu uye...Verenga zvakawanda»
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Cellulose inoshandiswa zvakanyanya mu petrochemicals, mishonga, kugadzira mapepa, zvizoro, zvinhu zvekuvaka, nezvimwewo. Ichinhu chinoshandiswa zvakasiyana-siyana, uye mashandisirwo akasiyana ane zvinodiwa zvakasiyana zvekushanda kwezvigadzirwa zve cellulose. Chinyorwa chino chinonyanya kutaura nezvekushandiswa uye nzira yekuziva mhando yeHPM...Verenga zvakawanda»
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Muzvizoro, kune zvinhu zvakawanda zvemakemikari zvisina ruvara uye zvisina hwema, asi zvinhu zvishoma zvisina chepfu. Nhasi, ndichakuzivisai, hydroxyethyl cellulose, iyo inowanikwa zvakanyanya muzvizoro zvakawanda kana zvinodiwa zuva nezuva. Hydroxyethyl Cellulose【Hydroxyethyl Cellulose】 Inozivikanwawo se (HEC) ichena ...Verenga zvakawanda»
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Pfupiso: inonzi HPMC, upfu huchena kana husina kuchena hwe fibrous kana granular. Kune mhando dzakawanda dze cellulose uye dzinoshandiswa zvakanyanya, asi tinonyanya kubata nevatengi vari muindasitiri yezvinhu zvekuvaka zveupfu hwakaoma. Cellulose inonyanya kushandiswa inoreva hypromellose. Maitiro ekugadzira: Iyo huru r...Verenga zvakawanda»
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CMC inowanzo kuve anionic polymer compound yakagadzirwa nekuita natural cellulose ne caustic alkali ne monochloroacetic acid, ine molecular huremu hwe6400 (±1 000). Zvigadzirwa zvikuru i sodium chloride ne sodium glycolate. CMC ndeye natural cellulose modification. Yave...Verenga zvakawanda»