CMC na-eji na ụlọ ọrụ akwụkwọ

Akwụkwọ ọkwa CMCdabere na cellulose dị ka isi akụrụngwa, mgbe alkalization na ultra-mma ọgwụgwọ, na mgbe ahụ site multiple chemical Jeremaya mere dị ka crosslinking, etherification na acidification mere nke anion polymer na ether bond Ọdịdị. Ngwaahịa emechara bụ ọcha ma ọ bụ ntụ ntụ edo edo ma ọ bụ ihe granular. Nke na-adịghị egbu egbu, enweghị ụtọ, enweghị isi, na-ejigide mmiri dị mma, yana ezigbo mkparị.

Isi ọrụ CMCSodium carboxymethyl cellulose na ụlọ ọrụ akwụkwọ:

A na-eji CMC eme mkpuchi mkpuchi akwụkwọ. Carboxymethyl cellulose nwere ike ịbawanye uru njigide mmiri nke mkpuchi ahụ iji gbochie mbugharị nke adhesives gbazere n'ime mmiri na akwụkwọ, iji mee ka ọkwa nke mkpuchi dịkwuo elu ma melite ogo mkpuchi.

N'ihi na CMC dị nnọọ mma nrapado, ya mere ike nrapado dị nnọọ mma, a carboxymethyl cellulose nwere ike dochie 3-4 modified starch ma ọ bụ 2-3 starch mmepụta, n'otu oge ahụ nwere ike belata ego nke latex, nyere aka melite mkpuchi siri ike ọdịnaya. .

N'oge nke mkpuchi nwere ike na-egwu lubrication mmetụta, ike nkewa nke ihe nkiri, ihe nkiri akpụ ratio dị nnọọ mma, nwere ike ime ka ihe siri ike na-aga n'ihu na-eme ka ihe nkiri na-eme ka ọ dị mma, zere ọnọdụ "peel orange". The chemical Njirimara nke sodium carboxymethyl cellulose CMC kwuru pseudoplastic, a onwunwe nke carboxymethyl cellulose nwere ike ime ka mkpuchi nwere "pseudoplastic", na-akpata mkpa mkpuchi na elu shiee, karịsịa adabara elu siri ike mkpuchi mkpuchi ma ọ bụ elu-ọsọ mkpuchi.

N'ihi na ngwọta mmiri nke CMC nwere nguzogide enzymatic hydrolysis na inert metabolism, mkpuchi ahụ nwere nkwụsi ike dị mma, nke a na-egosipụta na ịnọgide na-enwe ọdịdị nke mkpuchi ahụ, nke mere na mkpuchi adịghị mfe imebi n'oge oge nchekwa. Nke abuo, a na-eji CMC eme ihe dị ka ncha elu nke pulp akwụkwọ. Nhazi akwụkwọ dị n'elu nwere ike ime ka isi ike, ịdị nro, ma welie ike nke elu ya na ikesa ya.

CMCNwere ike ijikwa ịgbagọ nke ọma wee nweta ezigbo mbipụta akwụkwọ. Ịgbakwunye ụfọdụ akụkụ nke CMC na nha elu elu nwere ike ime ka elu nweta akara dị mma, na ihu nke mbipụta nwere ike imeziwanye ihe doro anya nke mbipụta agba ma chekwaa ink. CMC aqueous ngwọta nwere nnọọ mma film e guzobere, otú CMC na n'elu sizing gị n'ụlọnga na-eme ka fim e guzobere sizing gị n'ụlọnga n'elu akwụkwọ, ka mma n'elu sizing mmetụta.

Otú ọ dị, n'ihi ọnụ ahịa dị elu nke CMC, a na-ejikarị ya eme ihe maka akwụkwọ nwere ihe pụrụ iche chọrọ (akwụkwọ ego, akwụkwọ nchekwa, akwụkwọ mma, akwụkwọ ntọhapụ na akwụkwọ ntanye okpukpu abụọ).

CMC na-eji na mmiri ọgwụgwụ nke akwụkwọ igwe ịgbakwunye, n'oge gara aga, sodium carboxymethyl cellulose CMC na papermaking ulo oru na-tumadi ji mkpuchi na elu sizing, pulp na ọhụrụ nke sayensị na nkà na ụzụ, na-adịbeghị anya mba nwere otutu. nke ndị na-emepụta akwụkwọ site na njedebe mmiri mmiri CMC agbakwunyere iji melite ogo ngwaahịa na ihe ndị ọ rụzuru dịkwa oke mkpa.

Ịtinye CMC na njedebe mmiri na-enye ọtụtụ uru dị ukwuu:

1.Iji melite evenness nke akwụkwọ CMC bụ ezigbo dispersant, igbari ghọọ colloidal reagent CMC na-agbakwunyere na ọgwụgwọ nke slurry mgbe mfe jikọtara na pulp eriri na jupụta ihe ahụ ahụ, n'ihi na arụmọrụ electronegative CMC na-etisasịwo na mmiri, ọ ga-eme onwe ya. ugbua nwere akwụkwọ eriri na filler ahụ nke na-adịghị mma ụgwọ electronegativity na-abawanye, The ahụ na otu ụgwọ ga-ichughachi onye ọ bụla ọzọ, na eriri na filler na akwụkwọ nkwusioru ga-ọzọ evenly ekesa, nke bụ ihe mma ka akpụ nke akwụkwọ. ụlọ ọrụ, wee kwalite ịdị n'otu nke akwụkwọ ahụ.

2. Mee ka ike anụ ahụ nke pulp dịkwuo mma iji meziwanye ịdị n'otu nke pulp na-enyere aka ịbawanye njupụta anụ ahụ nke pulp (dị ka: njupụta ọdịdị ọdịdị, akwa akwa, ogologo mgbaji, nkwụsị nkwụsị na nkwụsị mpịachi), CMC na mgbanwe nke akwụkwọ edo edo na. N'otu oge ahụ na-abawanye ike anụ ahụ nke pulp. Ọdịdị CMC nwere carboxymethyl nwere ike ị drinkụ hydroxyl na eriri eriri na-eduga na mmeghachi omume mejupụtara, mee ka njikọ nke njikọ dị n'etiti eriri, site na mmepụta anụ ahụ nke usoro nrụpụta n'azụ igwe mpempe akwụkwọ, njikọ ike n'etiti eriri ga-abawanye nke ukwuu, mmetụta nke Isi ahụ dị na ibe akwụkwọ bụ mmụba niile nke isi ike anụ ahụ.

Akwụkwọ ọkwa CMC na-eji:

N'ime ụlọ ọrụ akwụkwọ, a na-eji CMC eme ihe n'ime usoro pulping, nke nwere ike imeziwanye ọnụọgụ njide na ịbawanye ike mmiri. A na-eji maka nha elu, dị ka pigmenti excipient, melite adhesion n'ime, belata uzuzu obibi, melite mma obibi; A na-eji maka mkpuchi akwụkwọ, na-eme ka mgbasa na mmiri dị ọcha nke pigmenti dịkwuo mma, na-eme ka akwụkwọ dị nro, ịdị nro, ihe anya anya na nhazi mbipụta. Na akwụkwọ ụlọ ọrụ dị ka ihe bara uru na ọtụtụ ihe mgbakwunye, tumadi n'ihi nhazi ihe nkiri polymer na-edozi mmiri na nguzogide mmanụ.

●A na-eji ya eme ihe maka mpempe akwụkwọ, nke mere na akwụkwọ ahụ nwere nnukwu njupụta, ezigbo nkwụsị ink permeability, nchịkọta wax dị elu na ire ụtọ.

●Nwere ike melite akwụkwọ esịtidem eriri viscosity ala, ka mma akwụkwọ ike na mpịachi eguzogide.

●N'ime akwụkwọ na agba agba akwụkwọ, CMC na-enyere aka ịchịkwa nrịba nke pasta agba na ntinye ink dị mma.

N'ozuzu, usoro ọgwụgwọ akwadoro bụ 0.3-1.5%.