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I-Ethyl cellulose (i-Ethyl cellulose ether), eyaziwa ngokuba yi-cellulose ether, ebizwa ngokuba yi-EC. Ukwakheka kweemolekyuli kunye nefomyula yolwakhiwo: [C6H7O2(OC2H5)3] n. 1. Ukusebenzisa Le mveliso inemisebenzi yokubopha, ukuzalisa, ukwenza ifilimu, njl. Isetyenziselwa iiplastiki zokwenziwa ze-resin, ii-coating, i-sub yerabha...Funda ngokugqithisileyo»
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(1) Imiqobo yobuchwephesha Abathengi abasezantsi be-cellulose ether baneemfuno eziphezulu kumgangatho kunye nokuzinza kwe-cellulose ether. Itekhnoloji yokulawula umgangatho ngumqobo obalulekileyo wobugcisa kwishishini le-cellulose ether. Abavelisi kufuneka babe nobuchule bokusebenza kokudibanisa uyilo lwe-co...Funda ngokugqithisileyo»
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Chaza: Iintlobo zokutya eziquka ii-cellulose ethers Intsimi yobugcisa: Le nguqulelo inxulumene neentlobo zokutya eziqulethe ii-cellulose ethers. Indlela yangasemva: Kudala kwaziwa ngokufaka ii-cellulose ethers kwiintlobo zokutya, ingakumbi iintlobo zokutya ezicutshungulwayo, ...Funda ngokugqithisileyo»
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1. Izinto ezilungileyo (1) Inkxaso yomgaqo-nkqubo Njengesixhobo esitsha esisekelwe kwi-bio kunye nesixhobo esiluhlaza nesinobuhlobo nokusingqongileyo, ukusetyenziswa ngokubanzi kwe-cellulose ether kwicandelo lemizi-mveliso yindlela yophuhliso yokwakha uluntu olunobuhlobo nokusingqongileyo nolugcina izixhobo kwixesha elizayo. I...Funda ngokugqithisileyo»
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Umgubo wePutty ubunjwe kakhulu zizinto ezenza ifilimu (izinto zokubopha), izizalisi, izinto zokugcina amanzi, izithambisi, ii-defoamers, njl. Izinto eziqhelekileyo zekhemikhali yendalo kwi-putty powder ziquka: i-cellulose, i-pregelatinized starch, i-starch ether, i-polyvinyl alcohol, i-dispersible latex p...Funda ngokugqithisileyo»
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1. Yintoni eyona nto isetyenziswa kakhulu yi-hydroxypropyl methylcellulose (HPMC)? I-Hydroxypropyl methylcellulose isetyenziswa kakhulu kwizixhobo zokwakha, kwiingubo, kwiiresini zokwenziwa, kwiiseramikhi, kumayeza, ekutyeni, kwimpahla yokulahlwa, kwezolimo, kwizinto zokuthambisa, kwicuba nakwamanye amashishini. I-Hydroxypropyl methylcellulose inokuthi...Funda ngokugqithisileyo»
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Le mveliso yi-2-hydroxypropyl ether methyl cellulose, eyimveliso eyenziwe ngokwe-semi-synthetic. Ingaveliswa ngeendlela ezimbini: (1) Emva kokunyanga ii-cotton linters okanye ii-wood pulp fibers nge-caustic soda, zixutywa ne-chloromethane kwaye i-epoxy I-Propane iyasabela, icocwe kwaye icolwe ukuze ifumaneke; (2) ...Funda ngokugqithisileyo»
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I-Hydroxypropyl methylcellulose idla ngokusetyenziswa kwimizi-mveliso eyahlukeneyo. Nangona abantu abaninzi bengayiqondanga kakuhle, ichaphazela amashishini ahlukeneyo. Kwinkqubo yokwakha kwimizi-mveliso yokwakha, idla ngokusetyenziselwa ukwakha udonga kunye nokuhombisa i-stucco, i-Caulking kunye nezinye...Funda ngokugqithisileyo»
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Udongwe lweHydroxypropyl methylcellulose-masonry luqinisa ukunamathela kumphezulu wodongwe, kwaye lunokuphucula ukugcinwa kwamanzi, ukuze amandla odongwe aphuculwe. Phucula ukutyeba kunye nokuqina kweplastiki ukuphucula ukusebenza kolwakhiwo, kube lula ukuyifaka, konge ixesha, kwaye kuphuculwe...Funda ngokugqithisileyo»
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I-Cellulose ether yi-polymer ye-molecular ephezulu engeyiyo i-ionic, enyibilikayo emanzini kwaye inyibilikayo. Ineziphumo ezahlukeneyo kumashishini ahlukeneyo. Umzekelo, kwizixhobo zokwakha iikhemikhali, ineziphumo ezilandelayo ezidibeneyo: ① I-arhente yokugcina amanzi, ②I-Thickener, ③Ukulinganisa ...Funda ngokugqithisileyo»
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Njengomxube osebenza kakuhle, i-cellulose ether yezixhobo zokwakha inokuphucula ukugcinwa kwamanzi kunye neempawu zokutyeba kwezixhobo zokwakha, kwaye iphucule ukusebenza kakuhle kolwakhiwo. Isetyenziswa kakhulu ukuphucula nokwenza ngcono kubandakanya udaka lokwakha, udaka lokufudumala, kunye...Funda ngokugqithisileyo»
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I-cellulose ether inokugcinwa kakuhle kwamanzi, nto leyo enokuthintela ukufuma kwi-mortar emanzi ukuba ingatshi ngaphambi kwexesha okanye ifunxwe lulwaleko olusisiseko, kwaye iqinisekise ukuba isamente imanzi ngokupheleleyo, ngaloo ndlela ekugqibeleni iqinisekisa iipropati zoomatshini ze-mortar, ingakumbi...Funda ngokugqithisileyo»