Carboxymethylcellulose (CMC) bụ ihe mgbakwunye na-arụ ọrụ nke a na-ejikarị eme ihe na ụlọ ọrụ dị iche iche dị ka nri, ọgwụ, ime akwụkwọ, textiles na Ngwuputa.A na-enweta ya site na cellulose eke, nke dị ukwuu na osisi na ihe ndị ọzọ dị ndụ.CMC bụ polymer soluble mmiri nwere ihe pụrụ iche gụnyere viscosity, hydration, adhesion and adhesion.
Njirimara CMC
CMC bụ ihe nrụpụta cellulose nke ejiri kemịkalụ gbanwee site na iwebata otu carboxymethyl n'ime nhazi ya.Mgbanwe a na-akwalite solubility na hydrophilicity nke cellulose, si otú ahụ na-eme ka ọrụ dịkwuo mma.Ngwongwo nke CMC na-adabere n'ogo nke nnọchi ya (DS) na ịdị arọ molekụla (MW).A kọwapụtara DS dị ka nkezi ọnụ ọgụgụ nke carboxymethyl otu glucose n'ime ọkpụkpụ azụ cellulose, ebe MW na-egosipụta nha na nkesa nke ụdọ polymer.
Otu n'ime ihe ndị bụ isi nke CMC bụ mmiri solubility ya.CMC dị mfe soluble n'ime mmiri, na-akpụ a viscous ngwọta na pseudoplastic Njirimara.Omume rheological a sitere na mmekọrịta intermolecular n'etiti ụmụ irighiri CMC, na-ebute mbelata nke viscosity n'okpuru nrụgide siri ike.Ụdị pseudoplastic nke ngwọta CMC na-eme ka ha dị mma maka ngwa dị iche iche dị ka ndị na-ekpo ọkụ, ndị na-eme ihe ike, na ndị na-akwụsịtụ.
Njirimara ọzọ dị mkpa nke CMC bụ ikike imepụta ihe nkiri ya.Enwere ike ịtụba ihe ngwọta CMC n'ime ihe nkiri nwere akụrụngwa akụrụngwa mara mma, nghọta na mgbanwe.Enwere ike iji ihe nkiri ndị a dị ka mkpuchi, laminates na ihe nkwakọ ngwaahịa.
Tụkwasị na nke ahụ, CMC nwere ezigbo njikọ na njikọta.Ọ na-etolite njikọ siri ike na elu dị iche iche, gụnyere osisi, ígwè, plastik na akwa ákwà.Ihe onwunwe a emeela ka a na-eji CMC na-emepụta ihe mkpuchi, ihe ntanye na inks.
CMC viscosity
Viscosity nke ngwọta CMC na-adabere n'ọtụtụ ihe dị ka itinye uche, DS, MW, okpomọkụ, na pH.N'ozuzu, ngwọta CMC na-egosipụta viscosities dị elu na mkpokọta dị elu, DS, na MW.Viscosity na-abawanye site na mbelata okpomọkụ na pH.
A na-achịkwa viscosity nke ngwọta CMC site na mmekọrịta dị n'etiti ụdọ polymer na ihe mgbaze na ngwọta.Mkpụrụ ndụ CMC na-ejikọta ụmụ irighiri mmiri site na njikọ hydrogen, na-akpụ shea hydration gburugburu ụdọ polymer.Shei hydration a na-ebelata mmegharị nke ụdọ polymer, si otú ahụ na-abawanye viscosity nke ngwọta.
A na-eji omume rheological nke ngwọta CMC na-eme ka ọkpụkpụ na-asọpụta, nke na-akọwa mmekọrịta dị n'etiti nrụgide na-egbuke egbuke na ọnụ ọgụgụ nke ngwọta nke ngwọta.Ngwọta CMC na-egosipụta omume na-adịghị na Newtonian, nke pụtara na viscosity ha na-agbanwe na ọnụ ọgụgụ shear.Na ọnụ ọgụgụ dị ala, viscosity nke ngwọta CMC dị elu, ebe ọ bụ na ọnụ ọgụgụ dị elu, viscosity na-ebelata.Omume ịhịa aka n'ahụ a bụ n'ihi ụdọ polymer na-agbatị ma na-agbatị n'okpuru nrụgide shiee, na-ebute mbelata ike intermolecular n'etiti agbụ na mbelata nke viscosity.
Ngwa nke CMC
A na-eji CMC eme ihe na mpaghara dị iche iche n'ihi njirimara pụrụ iche ya na omume rheological.N'ime ụlọ ọrụ nri, a na-eji CMC eme ihe dị ka ihe na-agbapụta, stabilizer, emulsifier na nhazi nhazi.A na-agbakwunye ya na nri ndị dị ka ice cream, ihe ọ drinksụ drinksụ, sauces na ngwa a na-esi esi eme ka ọdịdị ha dịkwuo mma, nkwụsi ike na ndụ nchekwa.CMC na-egbochikwa imepụta kristal ice na nri oyi kpọnwụrụ akpọnwụ, na-ebute ngwaahịa dị nro, na-atọ ụtọ.
N'ime ụlọ ọrụ na-emepụta ọgwụ, a na-eji CMC mee ihe dị ka onye na-ekekọta, nke na-agbasasị ma na-achịkwa ya na nhazi mbadamba.Meziwanye mkpakọ na fluidity nke ntụ ntụ ma hụ na ịdị n'otu na nkwụsi ike nke mbadamba nkume.N'ihi mucoadhesive na bioadhesive Njirimara, a na-ejikwa CMC mee ihe dị ka ihe na-eme ka ophthalmic, imi, na ọnụ ọnụ.
N'ime ụlọ ọrụ akwụkwọ, a na-eji CMC mee ihe dị ka ihe mgbakwunye mmiri mmiri, ihe mkpuchi mkpuchi na onye na-ahụ maka mgbasa ozi.Ọ na-eme ka njide pulp dị mma na nsị, na-abawanye ike na njupụta akwụkwọ, ma na-enye elu dị larịị ma na-egbuke egbuke.CMC na-arụkwa ọrụ dị ka ihe mgbochi mmiri na mmanụ, na-egbochi ink ma ọ bụ mmiri mmiri ndị ọzọ ịbanye n'ime akwụkwọ ahụ.
N'ime ụlọ ọrụ akwa, a na-eji CMC mee ihe dị ka onye na-emepụta ihe, ihe na-ebi akwụkwọ, na ihe inyeaka na-esiji ákwà.Ọ na-eme ka eriri eriri na-eme ka ọ dịkwuo mma, na-eme ka ntinye na nhazi nke agba dịkwuo mma, na-ebelata esemokwu na wrinkles.CMC na-enyekwa ịdị nro na isi ike na akwa ahụ, dabere na DS na MW nke polymer.
N'ime ụlọ ọrụ na-egwuputa ihe, a na-eji CMC mee ihe dị ka flocculant, inhibitor na rheology modifier na nhazi ịnweta.Ọ na-eme ka ndozi na nzacha nke ihe siri ike, na-ebelata ikewapụ na gangue coal, ma na-achịkwa viscosity na nkwụsi ike nkwusioru.CMC na-ebelatakwa mmetụta gburugburu ebe obibi nke usoro Ngwuputa site na ibelata ojiji nke kemịkalụ na-egbu egbu na mmiri.
na ngwụcha
CMC bụ ihe mgbakwunye dị iche iche na nke bara uru nke na-egosipụta njirimara pụrụ iche na viscosity n'ihi usoro kemịkal ya na mmekọrịta ya na mmiri.Ọdịmma ya, ikike imepụta ihe nkiri, njide na njigide na-eme ka ọ dị mma maka ngwa dị iche iche na nri, ọgwụ, akwụkwọ, textile na ngalaba Ngwuputa.Enwere ike ịchịkwa viscosity nke ngwọta CMC site n'ọtụtụ ihe, dị ka ịta ahụhụ, DS, MW, okpomọkụ, na pH, na enwere ike iji ya pseudoplastic na ịkpa àgwà dị nro.CMC nwere mmetụta dị mma na ịdị mma, arụmọrụ na nkwado nke ngwaahịa na usoro, na-eme ka ọ bụrụ akụkụ dị mkpa nke ụlọ ọrụ ọgbara ọhụrụ.
Oge nzipu: Sep-25-2023