1. Njirimara nke hydroxyethyl cellulose
Ngwaahịa a na-acha ọcha ma ọ bụ na-acha odo odo na-enweghị isi na ntụ ntụ dị mfe, 40 mesh sieve rate ≥99%; okpomọkụ dị nro: 135-140 ° C; njupụta pụtara ìhè: 0.35-0.61g / ml; okpomọkụ ire ere: 205-210°C; na-agba ọsọ nwayọọ nwayọọ; nha nhata okpomọkụ: 23°C; 6% na 50% rh, 29% na 84% rh.
Ọ bụ soluble na ma mmiri oyi na mmiri ọkụ, na n'ozuzu-adịghị soluble na ọtụtụ organic solvents. Viscosity na-agbanwe ntakịrị na oke PH uru 2-12, mana viscosity na-ebelata karịa oke a.
2. Ihe ndị dị mkpa
Dị ka onye na-abụghị ionic surfactant,hydroxyethyl cellulosenwere ihe ndị a na mgbakwunye na ịgbakọ, nkwusioru, ijikọ, na-ese n'elu mmiri, imepụta fim, ịgbasa, njigide mmiri na inye colloid nchebe:
1. HEC na-agbaze na mmiri ọkụ ma ọ bụ mmiri oyi, ọ naghị eme ka ọ dị elu na okpomọkụ ma ọ bụ na-esi ísì ụtọ, nke na-eme ka ọ nwee ọtụtụ ihe solubility, njirimara viscosity na gelation na-abụghị thermal.
2. Ọ bụ na-abụghị ionic na ike ibikọ ọnụ na a dịgasị iche iche nke ọzọ mmiri-soluble polymers, surfactants, na salts. Ọ bụ ezigbo colloidal thickener maka elu-etinye uche electrolyte ngwọta.
3. Ikike njide mmiri dị okpukpu abụọ dị elu karịa nke methyl cellulose, ọ na-enwekwa usoro nchịkwa ka mma.
4. Tụnyere na ghọtara methyl cellulose na hydroxypropyl methyl cellulose, HEC nwere kasị njọ dispersing ikike, ma kasị ike na-echebe colloid ike.
3. Iji hydroxyethyl cellulose
A na-ejikarị dị ka thickeners, ndị na-echebe mmadụ, adhesives, stabilizers na additives maka nkwadebe nke emulsions, jellies, ointments, lotions, eye cleansers, suppositories and tablets, and also used as hydrophilic gels, skeleton material, Ọ nwere ike iji kwadebe matrix- pịnye nkwado nkwado ntọhapụ, ma enwere ike iji ya dị ka ihe nkwụsi ike na nri.
Oge nzipu: Dec-27-2022