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kpọrọ nkụ ngwa ngwa Nke a bụ isi n'ihi oke mgbakwunye nke ntụ ntụ calcium ntụ (enwere ike ibelata oke ntụ ntụ calcium nke ejiri mee ihe na usoro putty nke ọma) metụtara ọnụego njigide mmiri nke hydroxypropyl methylcellulose, ọ na-ejikọkwa ya na nkụ nke mgbidi ahụ. Ịkpụcha...GỤKWUO»
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Hydroxypropyl methylcellulose bụ cellulose ether nke na-abụghị ionic nke e ji owu a nụchara anụcha emepụta site na usoro mmeghachi omume kemịkalụ. Ọ bụ ihe na-enweghị isi, nke na-adịghị egbu egbu nke na-agbaze na mmiri ma na-enye ngwọta colloidal doro anya ma ọ bụ dịtụ ka ígwé ojii. O nwere njirimara nke t...GỤKWUO»
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Aha HPMC nke ndị China bụ hydroxypropyl methylcellulose. Ọ bụghị ionic ma a na-ejikarị ya eme ihe dị ka ihe na-ejide mmiri n'ime ite akọrọ. Ọ bụ ihe a na-ejikarị ejigide mmiri n'ime ite. Ngwaahịa ether nke dabeere na polysaccharide nke alkalization na etherification mepụtara. O nweghị...GỤKWUO»
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1. Nsogbu ndị a na-ahụkarị na ntụ ntụ putty na-akpọnwụ ngwa ngwa Nke a metụtara oke ntụ ntụ calcium ash etinyere (oke ibu, enwere ike ibelata oke ntụ ntụ calcium ash eji na usoro putty nke ọma) yana ọnụego njigide mmiri nke hydroxypropyl methylcellulose (HPMC), ọ na-emekwa ka ọ dịghachi...GỤKWUO»
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Ntụ ntụ latex nke a na-akpọ Redispersible bụ ntụ ntụ ọcha siri ike nke a na-enweta site na iji latex pụrụ iche nke a na-akpọ spray-drive. A na-ejikarị ya eme ihe dị ka ihe mgbakwunye dị mkpa maka "mmịrị akọrọ-ngwakọta" na ngwa agha ndị ọzọ a na-akpọ akọrọ maka ihe owuwu injinia mkpuchi mgbidi mpụga. Lezienụ anya na ihe atọ ndị a...GỤKWUO»
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A na-ejikarị Hydroxypropyl methylcellulose eme ihe dị ka ihe na-agbasa ihe na mmepụta nke polyvinyl chloride, ọ bụkwa ihe enyemaka bụ isi maka ịkwadebe PVC site na nkwụsịtụ polymerization. N'usoro owuwu nke ụlọ ọrụ owuwu, a na-ejikarị ya eme ihe na nhazi igwe dịka mgbidi...GỤKWUO»
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Ihe mgbakwunye emezigharịrị dịka ihe mgbakwunye ngwa agha agwakọtara agwakọta, cellulose ethers, ihe ndị na-achịkwa coagulation, ntụ ntụ latex a na-agbanwe agbanwe, ihe ndị na-abanye n'ikuku, ihe ndị na-eme ka ike dị ngwa ngwa, ihe ndị na-ebelata mmiri, wdg, nke a na-agbakwunye dịka mkpa ọrụ ahụ si dị, na-eme ka arụmọrụ nke ngwakọta agwakọtara agwakọta nke ọma ...GỤKWUO»
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Iji hydroxypropyl methylcellulose (HPMC) eme ihe n'ime ihe owuwu maka plasta: Njide mmiri dị elu nwere ike ime ka simenti ahụ dị mmiri mmiri nke ọma, mee ka ike njikọ ahụ dịkwuo elu, ma n'otu oge ahụ, ọ nwere ike ime ka ike nrụgide na ike ịkwa akwa dịkwuo mma, na-eme ka ọ dịkwuo mma...GỤKWUO»
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(1) Nchọpụta nke viscosity: A na-akwadebe ngwaahịa kpọrọ nkụ ka ọ bụrụ mmiri mmiri nwere oke ịdị arọ nke 2°C, a na-ejikwa viscometer ntụgharị NDJ-1 tụọ ya; (2) Ọdịdị nke ngwaahịa ahụ dị ntụ ntụ, a na-agbakwụnyekwa ngwaahịa ozugbo na "s". Otu esi eji hydroxyp...GỤKWUO»
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Ndekọ viscosity nke hydroxypropyl methylcellulose bụ ihe dị oke mkpa. viscosity anaghị anọchite anya ịdị ọcha. viscosity nke cellulose HPMC dabere na usoro mmepụta. Gburugburu ojiji dị iche iche kwesịrị ịhọrọ cellulose HPMC nwere viscosities dị iche iche, ọ bụghị ka vi...GỤKWUO»
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Ngwakọta mmiri mmiri na-ezo aka na ihe simenti, ngwakọta dị mma, ngwakọta ngwakọta, mmiri na ihe dị iche iche a na-ekpebi dịka arụmọrụ si dị. Dịka oke ụfọdụ si dị, mgbe a tụrụ ya ma gwakọta ya n'ebe a na-agwakọta ya, a na-ebuga ya ebe a na-eji ya site na gwongworo igwekota. Debe...GỤKWUO»
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Ụdị ngwakọta a na-ejikarị arụ ụlọ ngwakọta akọrọ, njirimara arụmọrụ ha, usoro ọrụ ha, na mmetụta ha na arụmọrụ nke ngwaahịa ngwakọta akọrọ. Mmetụta mmezi nke ihe ndị na-ejide mmiri dị ka cellulose ether na starch ether, nke a na-agbanwe agbanwe...GỤKWUO»