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Uru pH izugbe nke ngwaahịa gypsum bụ acidic ma ọ bụ na-anọpụ iche. Ugbu a, e nwere ụdị abụọ nke hydroxypropyl methylcellulose ọkwa owuwu n'ahịa: cellulose na-agbaze nwayọ nwayọ na cellulose ozugbo (S). Cellulose ozugbo adabaghị maka sistemụ gypsum. Ngwaahịa, ọ naghị agbaze nke ọma...GỤKWUO»
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Nchekwa mmiri sitere na Hydroxypropyl Methyl Cellulose bụ otu n'ime ihe ndị dị mkpa nke Hydroxypropyl Methyl Cellulose. Ihe ndị dị ka okpomọkụ ikuku, okpomọkụ na ọsọ nrụgide ifufe ga-emetụta ọnụego mgbanwe mmiri na simenti na ngwaahịa gypsum. Ya mere, na...GỤKWUO»
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Taa, anyị ga-elekwasị anya n'otú esi etinye ụdị ihe mkpuchi siri ike ụfọdụ. Ụdị ihe mkpuchi siri ike ndị a na-ejikarị eme ihe bụ isi ihe na-adịghị mma, cellulose, acrylic, na polyurethane. Ihe ndị na-adịghị mma bụ bentonite, silicon a na-agbaze agbaze, wdg, nke a na-etinyekarị na slurry maka igwe egweri, n'ihi na ...GỤKWUO»
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Banyere Cellulose Cellulose bụ polysaccharide macromolecular nke nwere glucose. Ọ dị n'ọtụtụ buru ibu na osisi ndụ akwụkwọ ndụ na ihe ndị dị ndụ n'ime mmiri. Ọ bụ ihe polymer eke kachasị kesaa ma buru ibu n'okike. O nwere ezigbo biocompatibility, mmeghari ohuru na ihe ndị na-emebi emebi na ihe ndị ọzọ...GỤKWUO»
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A na-eme cellulose ether site na cellulose site na mmeghachi omume etherification nke otu ma ọ bụ ọtụtụ ihe na-eme ka etherification na igwe nkụ. Dịka usoro kemịkalụ dị iche iche nke ihe ndị na-eme ka ether dịghachi ndụ si dị, enwere ike kewaa cellulose ethers ka ọ bụrụ anionic, cationic na nonionic ethers. Ionic cellulose et...GỤKWUO»
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Dịka akụkọ kachasị ọhụrụ sitere n'aka IHS Markit si kwuo, oriri zuru ụwa ọnụ nke cellulose ether—polima mmiri na-agbaze site na mgbanwe kemịkalụ nke cellulose—dị ihe dị ka tọn nde 1.1 na 2018. N'ime mkpokọta mmepụta cellulose ether zuru ụwa ọnụ na 2018, 43% sitere na Eshia (China mere 79...GỤKWUO»
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(1) Nkọwa nke ahịa ether cellulose cellulose zuru ụwa ọnụ: Site n'echiche nke nkesa ikike mmepụta zuru ụwa ọnụ, 43% nke mkpokọta mmepụta ether cellulose zuru ụwa ọnụ na 2018 sitere na Eshia (China mere 79% nke mmepụta Eshia), Western Europe mere 36%, na North America...GỤKWUO»
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1) Isi ihe e ji eme cellulose ọkwa nri ether Cellulose ether bụ ihe mgbakwunye nchekwa nri a ma ama, nke enwere ike iji dị ka ihe na-eme ka nri sie ike, ihe na-eme ka ọ sie ike na ihe na-eme ka ọ dị arọ, iji chekwaa mmiri, melite uto, wdg. A na-ejikarị ya eme ihe n'ọtụtụ mba mepere emepe, ọkachasị maka nri a na-eme achịcha, eriri ...GỤKWUO»
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Ojiji nke cellulose ether dị oke ukwuu, mmepe akụ na ụba mba ga-akwalite mmepe nke ụlọ ọrụ cellulose ether ozugbo. Ugbu a, itinye cellulose ether na China bụ isi ihe dị na ụlọ ọrụ dịka ihe owuwu ụlọ, o...GỤKWUO»
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Ọnọdụ usoro ọrụ: (1) Ụlọ ọrụ dị n'elu Ihe ndị bụ isi achọrọ maka mmepụta nke cellulose ether gụnyere owu a nụchara anụcha (ma ọ bụ pulp osisi) na ụfọdụ ihe mgbaze kemịkalụ a na-ahụkarị, dịka propylene oxide, methyl chloride, mmiri mmiri caustic soda, caustic soda, ethylene oxide, toluene na ...GỤKWUO»
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Site na iji cellulose dị ka ihe eji emepụta ihe, e ji usoro nzọụkwụ abụọ kwadebe CMC-Na. Nke mbụ bụ usoro alkalization nke cellulose. Cellulose na-emeghachi omume na sodium hydroxide iji mepụta alkali cellulose, mgbe ahụ alkali cellulose na-emeghachi omume na chloroacetic acid iji mepụta CMC-Na, nke a na-akpọ e...GỤKWUO»
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Ndabere na Nchịkọta Ihe Cellulose ether bụ ihe kemịkalụ dị mma nke e ji polymer mee nke e ji polymer cellulose eke mee site na ọgwụgwọ kemịkalụ. Mgbe emechara cellulose nitrate na cellulose acetate na narị afọ nke 19, ndị na-emepụta kemịkalụ emepụtala usoro ihe ndị sitere na cellulose nke...GỤKWUO»