Carboxymethyl cellulose (CMC)bụ ngwakọta mmiri na-agbaze mmiri nke emere site na mgbanwe kemịkalụ nke cellulose eke. A na-eji ya eme ihe na ngwaahịa kemịkalụ kwa ụbọchị. Dị ka a nkịtị thickener, stabilizer na suspending gị n'ụlọnga, CMC occups a dị mkpa ọnọdụ na kwa ụbọchị chemical ngwaahịa dị ka akpụkpọ na-elekọta ngwaahịa, eze ntachi, detergents, wdg na ya magburu onwe anụ ahụ na chemical Njirimara.
1. Chemical Njirimara nke carboxymethyl cellulose
A na-emepụta CMC site na mmeghachi omume cellulose eke na sodium chloroacetate (ma ọ bụ chloroacetic acid) na gburugburu alkaline. Usoro ihe omimi ya na-agụnye skeleton cellulose na ọtụtụ carboxymethyl (-CH₂-COOH), na iwebata otu ndị a na-enye CMC hydrophilicity. The molekụla arọ na ogo nke nnọchi nke CMC (ie, carboxymethyl nnọchi ọnụego na cellulose molekul) bụ isi parameters na-emetụta ya solubility na ndim mmetụta. Na nhazi ngwaahịa kemịkalụ kwa ụbọchị, CMC na-apụtakarị dị ka ntụ ntụ na-acha ọcha ma ọ bụ ubé odo nwere ezigbo mmiri solubility na ihe ndị na-emesi ike.
2. Njirimara ọrụ nke carboxymethyl cellulose
Njirimara physicochemical nke CMC na-enye ya ọtụtụ ọrụ na ngwaahịa kemịkalụ kwa ụbọchị:
Thickening arụmọrụ: CMC exhibits ndim mmetụta na aqueous ngwọta, na ya ngwọta viscosity nwere ike gbanwee na ịta, molekụla arọ na ogo nke nnọchi nke CMC. Ịgbakwunye CMC na ngwaahịa kemịkalụ kwa ụbọchị n'ụdị kwesịrị ekwesị nwere ike ịbawanye viscosity ngwaahịa ahụ, weta ahụmịhe onye ọrụ ka mma, ma gbochie ngwaahịa ahụ site na stratification ma ọ bụ mfu.
Stabilizer na onye na-akwụsị akwụsị: Otu carboxyl dị na usoro ihe omimi nke CMC nwere ike ịmepụta njikọ hydrogen na ụmụ irighiri mmiri ma nwee ezigbo mmiri solubility na adhesion. CMC nwere ike ịmepụta usoro nkwusioru ekesa n'otu n'otu na ngwọta, si otú a na-enyere aka mee ka ihe na-adịghị edozi ahụ ma ọ bụ ụmụ irighiri mmanụ dị na ngwaahịa ahụ ma gbochie mmiri ozuzo ma ọ bụ stratification. Ngwongwo a dị mkpa karịsịa n'ihe nchacha na ngwaahịa nlekọta anụ ahụ emulsified nwere ihe na-adịghị.
Ihe na-emepụta ihe nkiri: CMC nwere ezigbo ihe nkiri na-emepụta ihe nkiri, na-emepụta ihe nkiri nchebe n'elu akpụkpọ ahụ ma ọ bụ ezé, nke nwere ike ibelata evaporation nke mmiri ma mee ka mmiri dị nro nke ngwaahịa ahụ dịkwuo elu. A na-eji akụrụngwa a eme ihe na ngwaahịa nlekọta anụ ahụ yana ngwaahịa nlekọta ọnụ.
Mmanya mmanu: Na ngwaahịa kemịkalụ kwa ụbọchị dị ka ntacha eze na ịfụ ụfụfụ, CMC nwere ike inye mmanu mmanu, nyere aka melite ire ngwaahịa, belata esemokwu, wee mee ka ahụmịhe onye ọrụ dịkwuo mma.
3. Ngwa nke carboxymethyl cellulose na ngwaahịa kemịkalụ kwa ụbọchị
Njirimara dị iche iche nke CMC na-eme ka ọ bụrụ ihe dị mkpa na ngwaahịa kemịkal kwa ụbọchị. Ndị a bụ ngwa ya akọwapụtara na ngwaahịa dị iche iche:
3.1 Ihe ntacha eze
Ihe ntacha eze bụ ihe atụ nke ngwa CMC na ngwaahịa kemịkalụ kwa ụbọchị. A na-ejikarị CMC eme ihe dị ka thickener na stabilizer na ntacha eze. Ebe ọ bụ na ntacha eze na-achọ ụfọdụ viscosity iji hụ na ihicha na nkasi obi dị mma mgbe ị na-ehicha ezé, mgbakwunye nke CMC nwere ike ime ka viscosity nke ntacha eze dịkwuo elu, ka ọ ghara ịdị oke mkpa iji jide n'aka na ncha nha nha, ma ọ bụ na-enweghị oke iji metụta extrusion. CMC nwekwara ike inye aka kwụsịtụ ụfọdụ ihe ndị na-adịghị edozi ahụ dị ka abrasives na ncha eze iji mee ka udidi nke ntacha eze kwụsie ike. Tụkwasị na nke ahụ, ihe nkiri na-emepụta ihe nkiri nke CMC na-enyere ya aka ịmepụta oyi akwa mkpuchi n'elu ezé, na-abawanye mmetụta nhicha nke oghere ọnụ.
3.2 Ihe nchacha
Ọrụ CMC na ncha akwa dịkwa oke egwu. Ọtụtụ ihe nchacha mmiri na mmiri na-asa efere nwere ihe ndị na-adịghị edozi ahụ na ihe ndị dị n'elu, bụ ndị na-adịkarị mfe n'oge nchekwa. CMC, dị ka onye na-akwụsị akwụsị na thickener, nwere ike kwụsịtụ irighiri ihe n'ụzọ dị irè, mee ka udidi nke ngwaahịa ahụ guzosie ike, ma zere stratification. Na mgbakwunye, CMC nwere ike inye ụfọdụ mmanye n'oge a na-eji ya ma belata mgbakasị anụ ahụ, ọkachasị na ncha akwa na ncha aka.
3.3 ngwaahịa nlekọta anụ ahụ
N'ime ngwaahịa nlekọta anụ ahụ, a na-ejikarị CMC eme ihe dị ka ihe na-agbapụta na mmiri mmiri. Dịka ọmụmaatụ, na ngwaahịa ndị dị ka lotions, creams na essences, CMC nwere ike ịbawanye viscosity nke ngwaahịa ahụ nke ọma ma weta mmetụta dị nro nke ojiji. Ihe na-emepụta ihe nkiri nke CMC na-eme ka o nwee ike ịmepụta ihe nkiri nchebe n'elu akpụkpọ ahụ iji gbochie ikuku mmiri na-eme ka mmiri dịkwuo elu nke ngwaahịa ahụ, si otú ahụ nweta nzube nke mmiri na-adịte aka. Tụkwasị na nke ahụ, CMC nwere nchekwa dị elu ma dị mma maka akpụkpọ anụ dị nro na ụdị akpụkpọ anụ dị iche iche.
3.4 Ịkpụ ụfụfụ na ngwaahịa ịsa ahụ
N'ịkpụ ụfụfụ na ngwaahịa ịsa ahụ.CMCnwere ike rụọ ọrụ mmanye mmanye, kwalite ire ngwaahịa ahụ, ma belata esemokwu akpụkpọ ahụ. Mmetụta dị ukwuu nke CMC nwekwara ike ịkwalite nkwụsi ike nke ụfụfụ, na-eme ka ụfụfụ ahụ dị nro ma na-adịgide adịgide, na-eweta ahụmahụ dị mma na ịsa ahụ. Tụkwasị na nke ahụ, ihe nkiri na-emepụta ihe nkiri nke CMC nwere ike ịmepụta oyi akwa na-echebe akpụkpọ ahụ, na-ebelata iwe iwe, karịsịa maka akpụkpọ anụ.
4. Nchekwa na nkwado nke carboxymethyl cellulose
CMC sitere na cellulose eke ma nwee nnukwu biodegradability. Ọ gaghị ebute mmetọ na-adịgide adịgide na gburugburu ebe obibi mgbe a na-eji ya eme ihe, nke na-emezu ihe achọrọ maka mmepe na-adịgide adịgide. E gosikwara na CMC adịghị mma maka ojiji mmadụ. A kwadoro CMC dị ka ihe mgbakwunye nri n'ọtụtụ mba, na-egosi na ọ nwere obere nsị na ahụ mmadụ. Ọdịnaya CMC na ngwaahịa kemịkalụ kwa ụbọchị na-adịkarị ala. Mgbe ọtụtụ ule ụlọ ọgwụ gasịrị, CMC agaghị eme ka akpụkpọ ahụ ma ọ bụ oghere ọnụ nwee iwe dị ukwuu, ya mere ọ dị mma maka ụdị mmadụ niile.
Ngwa obosara nkecarboxymethyl cellulose (CMC)na ngwaahịa kemịkalụ kwa ụbọchị na-egosi arụmọrụ ya dị mma na ịdị mma ya. Dị ka a nchekwa, ịrụ ọrụ nke ọma na-adigide thickener, suspending gị n'ụlọnga na mmanu, CMC arụ ọrụ dị mkpa na a dịgasị iche iche nke kwa ụbọchị chemical ngwaahịa dị ka akpụkpọ na-elekọta ngwaahịa, eze ntachi, detergents, wdg O nwere ike ọ bụghị naanị melite ngwaahịa ahụmahụ, kamakwa welie ngwaahịa. nkwụsi ike na mmetụta nke ngwaahịa ahụ. Na mgbakwunye, ịdịmma enyi gburugburu ebe obibi na biodegradaability nke CMC na-eme ka ọ gboo mkpa ọha na eze nke oge a maka akụrụngwa na-emetụta gburugburu ebe obibi. Ya mere, ka ọchịchọ nke ndị na-azụ ahịa maka ngwaahịa dị elu, nchekwa na gburugburu ebe obibi na-abawanye, atụmanya ngwa nke CMC na ụlọ ọrụ kemịkalụ kwa ụbọchị ga-aba ụba.
Oge nzipu: Nov-14-2024