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Mmetụta nke cellulose ether na-eme ka ọ sie ike dabere na: ogo nke polymerization nke cellulose ether, ntinye nke ngwọta, ọnụego shear, okpomọkụ na ọnọdụ ndị ọzọ. Njirimara gelling nke ngwọta ahụ pụrụ iche na alkyl cellulose na ihe ndị e mepụtara ya. Njirimara gelation bụ r...GỤKWUO»
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1. Okpomọkụ nke mmiri Dịka usoro mwepụta nke okpomọkụ nke mmiri ka oge na-aga si dị, a na-ekewa usoro mmiri nke simenti n'ime usoro ise, ya bụ, oge mmiri mbụ (0~15min), oge ntinye (15min~4h), oge ọsọ na ntọala (4h~8h), mbelata ...GỤKWUO»
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N'iji ihe eji arụ ụlọ, hydroxypropyl methylcellulose bụ ihe mgbakwunye ihe eji arụ ụlọ a na-ejikarị eme ihe, a na-ejikwa hydroxypropyl methylcellulose eme ihe n'ọtụtụ ebe n'ụlọ ọrụ ma nwee ụdị dị iche iche. Enwere ike kewaa Hydroxypropyl methylcellulose n'ime ụdị mmiri oyi na ụdị agbaze ọkụ, co...GỤKWUO»
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Na putty, simenti na slurry nke dabeere na gypsum, HPMC hydroxypropyl methylcellulose ether na-arụ ọrụ nke idobe mmiri na ime ka ọ sie ike, ma nwee ike ime ka nrapado na iguzogide sag nke slurry ahụ ka mma nke ọma. Ihe ndị dị ka okpomọkụ ikuku, okpomọkụ na ọsọ nrụgide ifufe ga-eme ka...GỤKWUO»
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Hydroxypropyl methyl cellulose (HPMC) bụ ụdị cellulose ether na-abụghị ionic nke e ji owu polymer eke mee site na usoro ọgwụgwọ kemịkalụ. N'ime ụlọ ọrụ owuwu ụlọ, kedu ihe bụ isi eji hydroxypropyl methylcellulose eme ihe? 1, simenti moto: iji melite ogo mgbasa ájá simenti, g...GỤKWUO»
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Dịka ihe ndị na-anọchi ya si dị, enwere ike kewaa ether cellulose n'ime otu ether na ether agwakọtara agwakọta; dịka ihe na-agbaze, enwere ike kewaa ether cellulose n'ime mmiri na-agbaze na mmiri na-anaghị agbaze. Ụzọ nhazi isi nke cellulose ether bụ ịkewa dịka ion...GỤKWUO»
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1. Usoro nhazi na nkwadebe nke cellulose ether Foto nke 1 na-egosi nhazi nkịtị nke cellulose ethers. Nkeji bD-anhydroglucose ọ bụla (ngaji nke cellulose na-emegharị) na-anọchi otu otu na ọnọdụ C (2), C (3) na C (6), ya bụ, enwere ike ịnwe otu ether atọ. N'ihi ...GỤKWUO»
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Isi ihe na-akpata agba odo nke elu putty na-eguzogide mmiri Mgbe emechara nnyocha ihe, ọtụtụ nnwale na ọrụ injinia, onye edemede ahụ kwenyere na isi ihe na-akpata agba odo nke elu putty na-eguzogide mmiri bụ ndị a: Ihe kpatara 1. Calcium...GỤKWUO»
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1. Hydroxypropyl methyl cellulose Hydroxypropyl methylcellulose bụ ụdị cellulose nke mmepụta na oriri ya na-amụba ngwa ngwa. Ọ bụ ngwakọta nke cellulose na-abụghị ionic nke e ji owu a nụchara anụcha mee mgbe alkalization gasịrị, na-eji propylene oxide na methyl chloride dị ka ihe na-eme ka etherification dị, site na...GỤKWUO»
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Ihe kacha mkpa dị na ngwọta ether cellulose bụ ihe onwunwe ya. Njirimara rheological pụrụ iche nke ọtụtụ ether cellulose na-eme ka ha bụrụ ihe a na-ejikarị eme ihe n'ọtụtụ ebe, ọmụmụ ihe gbasara ihe onwunwe rheological na-aba uru maka mmepe nke ubi ngwa ọhụrụ ma ọ bụ ihe na-adịghị mma...GỤKWUO»
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Kedu ihe bụ àgwà nke carboxymethyl cellulose? Azịza: Carboxymethyl cellulose nwekwara ihe dị iche iche n'ihi ọkwa dị iche iche nke nnọchi ya. Ogo nke nnọchi, nke a makwaara dị ka ogo etherification, pụtara ọnụọgụ nkezi nke H na otu OH hydroxyl atọ nọchitere anya...GỤKWUO»
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Carboxymethyl cellulose: A na-eji eriri eke (owu, wdg) eme ionic cellulose ether mgbe a gwọchara alkali, na-eji sodium monochloroacetate dị ka ihe na-eme ka etherification dị ka ihe na-eme ka etherification dị iche iche, ma na-eme usoro ọgwụgwọ mmeghachi omume. Ogo nke nnọchi anya na-abụkarị 0.4 ~ 1.4, arụmọrụ ya dịkwa oke mma...GỤKWUO»