Emebere hydroxypropyl methylcellulose ether ozugbo maka ngwaahịa ndị sitere na mmiri. A na-emeso elu hydroxypropyl methylcellulose ether na glioxal n'okpuru ụfọdụ okpomọkụ na pH uru. A na-achụsasị hydroxypropyl methyl cellulose ether n'ụzọ dị otú a na mmiri oyi na-anọpụ iche na-enweghị ọzịza na viscosity, nke na-ekere òkè na-egbu oge ọzịza. N'oge a, a na-akpali ihe ngwọta mmiri maka 5-10 nkeji ma ọ bụ Mgbe a na-emezi gburugburu ebe ngwọta (PH uru) ka ọ bụrụ alkaline, hydroxypropyl methylcellulose ether na-amalite ịza na ịmepụta viscosity. A na-akpọkarị ụdị a na-agwọ elu dị ka ụdị ngwa ngwa.
Ihe e ji mara ngwa ngwa hydroxypropyl methylcellulose bụ na mgbe ọ zutere mmiri oyi, ọ ga-agbasa ngwa ngwa na mmiri oyi, ma ọ na-ewe oge maka viscosity ya ebili, n'ihi na ọ na-agbasa na mmiri na mmalite, ọ naghị agbaze na mmiri oyi. nnukwu uche. Viscosity ya na-erute uru kachasị maka ihe dịka nkeji iri abụọ ma ọ bụ karịa. Uru nke a bụ na a na-eji ya na ụlọ ọrụ a kapịrị ọnụ na-enweghị ngwakọta ntụ ntụ akọrọ, ma ọ bụ mgbe ọ dị mkpa ka a gbazee na mmiri ọkụ enweghị ike iji ya mee ihe n'ihi ọnọdụ akụrụngwa na ihe ndị ọzọ. Ngwa ngwa hydroxypropyl methylcellulose na-edozi nsogbu dị otú ahụ.
Ụdị ngwa ngwa hydroxypropyl methylcellulose na-agbasa ngwa ngwa na mmiri (dispersion degree bụ 100%), na-agbaze ngwa ngwa, ọ dịghị clumping, karịsịa na mgbe e mesịrị, ngwọta colloidal nwere nnukwu nghọta (ruo 95%) na nnukwu nkwụsịtụ, nke na-edozi nsogbu ndị ahụ. na ngwa bara uru. Mgbochi, ịgbasa mpaghara ngwa, dị ka ngwa n'ime gluu ihe owuwu, ngwa na mgbakwunye mmiri mmiri, yana ubi pụrụ iche dị ka ịsa kemịkalụ kwa ụbọchị.
Anyị ewebatala ụwa dị elu mmepụta akụrụngwa na nkà na ụzụ, nwere ọgbara ọhụrụ mmepụta akara nke cellulose ether na redispersible latex ntụ ntụ, na hụ na-enye ndị ọrụ na-eju afọ ngwaahịa na ya siri àgwà akara usoro, ule usoro na zuru okè na-saịtị ọrụ. Ugbu a ngwaahịa na-eduga bụ hydroxypropyl methylcellulose HPMC, hydroxyethyl cellulose HEC, hydroxypropyl starch ether HPS, redispersible latex ntụ ntụ usoro. A na-eji ngwaahịa ndị a eme ihe n'ọtụtụ ebe na-ewu, ụlọ ọrụ kemịkalụ, agba, ụlọ ọrụ kemịkalụ kwa ụbọchị, ụlọ ọrụ ndị agha na mpaghara ndị ọzọ, a na-eme ya ka ọ bụrụ ndị na-emepụta ihe nkiri, adhesives, dispersants, stabilizers, thickeners, wdg.
Na-adabere na ya ngwaahịa àgwà na ọnọdụ ya na mmetụta na akọrọ ntụ ntụ ụlọ ihe mgbakwunye ụlọ ọrụ, na n'okpuru premise nke mgbe niile ịnọgide na-enwe ụlọ ọrụ ozi nke àgwà mbụ, ọ na-now na-arụkọ ọrụ na mba na anụ ụlọ maara nke ọma na-emepụta maka mmeju ngwaahịa. Ọrụ nkwado: eriri polypropylene, eriri osisi, starch ether gbanwetụrụ, ntụ ntụ polyvinyl, ntụ ntụ defoamer, onye na-ebelata mmiri, ihe na-egbochi mmiri, calcium formate na ihe mgbakwunye ntụ ntụ ndị ọzọ.
Oge nzipu: Nov-22-2022