Ihe mejupụtara ntụ ntụ Putty bụ ihe ndị na-emepụta fim (ihe ndị na-ejikọta ihe), ihe ndị na-ejupụta ihe, ihe ndị na-ejide mmiri, ihe ndị na-eme ka ihe sie ike, ihe ndị na-eme ka ihe ghara ịdị ọcha, wdg. Ihe ndị a na-ejikarị eme ihe na ntụ ntụ putty gụnyere: cellulose, starch pregelatinized, starch ether, polyvinyl alcohol, ntụ ntụ latex a na-agbaze agbaze, wdg. N'okpuru ebe a, Polycat ga-enyocha arụmọrụ na ojiji nke ihe dị iche iche na kemịkal maka gị otu otu.
Eriri:
Eriri (US: Eriri; Bekee: Eriri) na-ezo aka na ihe mejupụtara eriri na-aga n'ihu ma ọ bụ nke na-akwụsị akwụsị. Dịka eriri osisi, ajị anụmanụ, eriri silk, eriri sịntetik, wdg.
Cellulose:
Cellulose bụ polysaccharide macromolecular nke mejupụtara glucose, ọ bụkwa isi ihe mejupụtara mgbidi mkpụrụ ndụ osisi. N'ọnọdụ okpomọkụ ụlọ, cellulose anaghị agbaze na mmiri ma ọ bụ na ihe ndị na-agbaze organic nkịtị. Ọdịnaya cellulose dị na owu dị ihe dị ka 100%, nke na-eme ka ọ bụrụ isi iyi kachasị ọcha nke cellulose. N'ozuzu osisi, cellulose bụ 40-50%, e nwekwara 10-30% hemicellulose na 20-30% lignin.
Ihe dị iche n'etiti cellulose (aka nri) na starch (aka ekpe):
N'ozuzu, ma starch ma cellulose bụ macromolecular polysaccharides, a pụkwara ịkọwa usoro molekul dị ka (C6H10O5) n. Ibu molekul nke cellulose buru ibu karịa nke starch, a pụkwara ịgbaze cellulose iji mepụta starch. Cellulose bụ D-glucose na β-1,4 glycoside Macromolecular polysaccharides nke ejiri njikọ mee, ebe starch na-etolite site na α-1,4 glycosides. Cellulose anaghị ejikọta alaka, mana starch na-ejikọta site na 1,6 glycosidic bonds. Cellulose anaghị agbaze nke ọma na mmiri, ebe starch na-agbaze na mmiri ọkụ. Cellulose anaghị enwe mmetụta maka amylase ma ọ naghị acha anụnụ anụnụ mgbe e tinyere ya na iodine.
Cellulose Ether:
Aha Bekee nkecellulose etherbụ cellulose ether, nke bụ ngwakọta polima nwere nhazi ether nke e ji cellulose mee. Ọ bụ ngwaahịa nke mmeghachi omume kemịkalụ nke cellulose (osisi) na ihe nnọchite anya etherification. Dịka nhazi nhazi kemịkalụ nke ihe nnọchite anya mgbe eterification gasịrị si dị, enwere ike kewaa ya n'ime anionic, cationic na nonionic ethers. Dabere na ihe nnọchite anya eterification ejiri, enwere methyl cellulose, hydroxyethyl methyl cellulose, carboxymethyl cellulose, ethyl cellulose, benzyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, cyanoethyl cellulose, benzyl cyanoethyl cellulose, carboxymethyl hydroxyethyl cellulose na phenyl cellulose, wdg. N'ime ụlọ ọrụ owuwu, a na-akpọkwa cellulose ether cellulose, nke bụ aha na-adịghị mma, a na-akpọkwa ya cellulose (ma ọ bụ ether) nke ọma.
Usoro nke Cellulose Ether Thickener:
Ihe ndị na-eme ka cellulose ether sie ike bụ ihe ndị na-eme ka ihe dị arọ nke na-anaghị eme ka ihe dị arọ nke ukwuu, nke na-eme ka mmiri sie ike ma na-agbakọta n'etiti molekul.
Ọ dị mfe ịmepụta njikọ polima nke cellulose ether na mmiri n'ime mmiri, njikọ hydrogen na-emekwa ka ọ nwee mmiri dị elu ma na-ejikọta ya na molekul.
Mgbecellulose etherA na-etinye ihe na-eme ka ihe dị arọ sie ike na agba latex, ọ na-amịkọrọ nnukwu mmiri, na-eme ka olu nke ya gbasaa nke ukwuu, na-ebelata oghere efu maka agba, ihe na-ejupụta na ihe na-eme ka ihe dị n'ime ya dị nro na ihe ndị na-eme ka ihe dị n'ime ya dị nro;
N'otu oge ahụ, a na-ejikọ eriri molekul cellulose ether iji mepụta nhazi netwọk atọ, agba, ihe na-ejupụta na ihe ndị dị na latex na-agbakwa gburugburu n'etiti eriri ahụ ma ha enweghị ike ịgbapụ n'enweghị nsogbu.
N'okpuru mmetụta abụọ a, a na-eme ka viscosity nke sistemụ ahụ ka mma! Emezuo mmetụta siri ike anyị chọrọ!
Oge ozi: Eprel-28-2024