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N'ụlọ ọrụ ọgwụ, enwere ike iji hypromellose (HPMC, METHOCEL™) dị ka ihe na-emeju ihe, ihe na-ejikọ ihe, polima mkpuchi mbadamba na ihe na-enye isi iji chịkwaa mwepụta ọgwụ. Ejirila Hypromellose na mbadamba ihe karịrị afọ 60 ma ọ bụ ihe na-enye isi ihe eji eme ihe nke ukwuu na mbadamba ihe na-enye isi ...GỤKWUO»
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Hydroxyethyl cellulose bụ ihe dị mkpa sitere na cellulose. N'ihi uru dị na ọtụtụ ihe eji emepụta ihe, mmeghari ohuru, ihe na-emebi emebi, ihe na-adịghị egbu egbu, ezigbo biocompatibility, na nnukwu mkpụrụ, nnyocha na ojiji ya adọtala ọtụtụ mmasị. Uru viscosity dị oke mkpa kwa...GỤKWUO»
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Kedu ihe dị iche iche nke cellulose dị iche iche nwere na plasta nke Paris? Enwere ike iji carboxymethyl cellulose na methyl cellulose mee ihe dị ka ihe na-ejide mmiri maka plasta, mana mmetụta nke carboxymethyl cellulose dị ala karịa nke methyl cellulose, na carboxymethyl ce...GỤKWUO»
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Cellulose bụ polysaccharide nke na-emepụta ọtụtụ ethers na-agbaze mmiri. Ihe ndị na-eme ka cellulose sie ike bụ polima ndị na-agbaze mmiri na-abụghị ionic. Akụkọ ojiji ya dị ogologo, ihe karịrị afọ 30, e nwekwara ọtụtụ ụdị. A ka na-eji ha eme ihe n'ihe fọrọ nke nta ka ọ bụrụ agba latex niile ma bụrụ ihe ndị na-eme ka ihe dị arọ...GỤKWUO»
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Kedu mmetụta nke nha isi na hydroxypropyl methylcellulose: Nchikota nke hydroxypropyl methylcellulose: Jiri lye gwọọ cellulose owu a nụchara anụcha na 35-40°C ruo ọkara awa, pịa ya, gwerie cellulose ahụ, ma mee ka ọ dị mma na 35°C, ka nkezi ọkwa nke polymerization nke enwetara...GỤKWUO»
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Ka anyị kwuo maka hydroxypropyl methyl cellulose HPMC na otu esi atụ viscosity ya. viscosity ebe a na-ezo aka na viscosity doro anya, nke bụ ntụaka dị mkpa maka hydroxypropyl methyl cellulose. Ọkọlọtọ. Ụzọ ndị a na-ejikarị atụ bụ nha viscosity ntụgharị, capill...GỤKWUO»
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N'imepụta ihe owuwu ụlọ, ọkachasị ngwa agha ntụ ntụ kpọrọ nkụ, cellulose ether na-arụ ọrụ dị mkpa, ọkachasị n'imepụta ngwa agha pụrụ iche (ngwa agha agbanwere agbanwe), ọ bụ ihe dị mkpa. Ọrụ dị mkpa nke cellulose ether nke na-agbaze mmiri na ngwa agha bụ ọkachasị mmiri ya dị mma...GỤKWUO»
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Cellulose bụ isi ihe dị na mgbidi mkpụrụ osisi, ọ bụkwa polysaccharide kachasị kesaa ma baa ụba n'okike, na-eme ihe karịrị 50% nke ihe dị na carbon dị n'alaeze osisi. N'ime ha, ihe dị na cellulose dị na owu dị ihe dị ka 100%, nke bụ celery kachasị ọcha...GỤKWUO»
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1) Isi ojiji nke cellulose ether nke ihe owuwu. Ubi ihe owuwu bụ isi ihe achọrọ nke cellulose ether. Cellulose ether nwere ihe ndị dị mma dịka ịka nká, idobe mmiri, na nkwụsịtụ, yabụ a na-ejikarị ya eme ihe iji melite ma melite morta agwakọtara agwakọta...GỤKWUO»
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Mkpụrụ osisi na-agbanwe onwe ya bụ ihe e ji ntụ ntụ akọrọ gwakọtara agwakọta nke nwere ọtụtụ ihe ndị na-arụ ọrụ, nke enwere ike iji mgbe agwakọtara ya na mmiri n'ebe ahụ. Mgbe ejiri obere ihe na-akpụcha ihe gbasaa, enwere ike nweta elu ala dị larịị. Ọsọ ike ahụ dị ngwa ngwa, ị nwekwara ike ịga ije na ya n'ime awa 24...GỤKWUO»
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Hydroxyethylcellulose HEC bụ polima na-agbaze na mmiri nke na-abụghị ionic nke a na-agbaze na mmiri ọkụ na oyi. Usoro HEC nwere ọtụtụ viscosities, ihe ngwọta mmiri niile bụ mmiri na-abụghị nke Newtonian. Hydroxyethyl cellulose bụ ihe mgbakwunye dị mkpa na ngwaahịa kemịkalụ kwa ụbọchị...GỤKWUO»
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1. Njikwa Viscosity Viscosity dị elu hydroxypropyl methylcellulose enweghị ike imepụta cellulose dị elu naanị site na iji ihe nhicha na nitrogen dochie ya. Agbanyeghị, ọ bụrụ na enwere ike itinye ngwaọrụ nha oxygen n'ime ketulu ahụ, enwere ike ijikwa mmepụta viscosity site na aka. 2. Ojiji nke...GỤKWUO»