Na ezigbo nkume agba, enwere ike iji hydroxypropyl methylcellulose kama hydroxyethyl cellulose?

A na-enweta ngwaahịa vitamin niile site na pulp owu eke ma ọ bụ ahịhịa osisi, nke a na-emepụta site na etherification. Ngwaahịa cellulose dị iche iche na-eji ihe etherifying dị iche iche. Ihe etherifying a na-eji na hydroxyethyl cellulose (HEC) bụ ethylene oxide, na onye na-emepụta ihe na-emepụta hydroxypropyl methylcellulose (HPMC) bụ ụdị ndị ọzọ na-eme ka etherifying. (chloromethane na propylene oxide).

Na ezigbo szone agba na latex agba, hydroxyethyl cellulose nwere ike iji dị ka thickener.

Ezigbo nkume agba dị mfe ịkwanye n'ihi nnukwu mkpokọta ya na nnukwu nkọwa ya. Ọ dị mkpa ịgbakwunye ihe na-esi ísì ụtọ iji mee ka viscosity ya dịkwuo elu iji zute viscosity achọrọ maka ịgbasa n'oge a na-ewu ihe, melite nkwụsi ike nchekwa ya, ma nweta ike ụfọdụ.

Ọ bụrụ na ịchọrọ ezigbo agba nkume iji nweta ike dị mma, ezigbo mmiri na-eguzogide ihu igwe, nhọrọ nke akụrụngwa na nhazi nke usoro ahụ dị ezigbo mkpa.

N'okpuru ọnọdụ nkịtị, ọnụ ọgụgụ emulsion eji na akwa nkume dị elu ga-adị elu.

Dịka ọmụmaatụ, na ton nke ezigbo nkume agba, enwere ike ịnwe 300kg nke emulsion dị ọcha na 650kg nke ájá nkume nwere agba. Mgbe ọdịnaya siri ike nke emulsion bụ 50%, olu nke 300kg nke emulsion mgbe ihichachara bụ ihe dị ka lita 150, na 650kg nke ájá dị ihe dị ka lita 228. Ya bụ, PVC (pigmenti olu ịta ahụhụ) nke ezigbo nkume agba bụ 60% n'oge a, n'ihi na akụkụ nke acha ájá bụ nnukwu na oge na-adịghị na udi, na n'okpuru ọnọdụ nke a ụfọdụ urughuru size nkesa, nke a mịrị amị. ezigbo nkume agba nwere ike ịdị na CPVC (ntụpọ oke oke). Ntinye olu pigmenti) ihe ruru. N'ihe gbasara thickener, ọ bụrụ na ị na-ahọrọ cellulose na viscosity kwesịrị ekwesị, ezigbo nkume agba nwere ike ịmepụta ihe nkiri agba zuru oke na nke siri ike iji zute ihe atọ dị mkpa chọrọ ịrụ ọrụ nke ezigbo nkume agba. Ọ bụrụ na ọdịnaya nke ezigbo nkume agba emulsion dị ala, a na-atụ aro iji cellulose na elu viscosity dị ka thickener (dị ka 100,000 viscosity), karịsịa mgbe price nke cellulose na-abawanye, nke nwere ike ibelata ego nke cellulose na-eji na-eme ka ezigbo nkume Ọrụ nke agba dị mma.

Ụfọdụ ezigbo ndị na-emepụta agba nkume na-eji hydroxypropyl methylcellulose kama hydroxyethyl cellulose maka ọnụ ahịa na ihe ndị ọzọ.

E jiri ya tụnyere ụdị cellulose abụọ ahụ, hydroxyethyl cellulose nwere njide mmiri ka mma, ọ gaghị atụfu njide mmiri n'ihi gelatin na okpomọkụ dị elu, ma nwee ụfọdụ mgbochi mildew. Maka ntụle arụmọrụ, a na-atụ aro ka iji hydroxyethyl cellulose na viscosity nke 100,000 dị ka ihe na-agba agba maka agba nkume n'ezie.