Hydroxypropyl Methylcellulose dị ka ndị na-ekewapụ ihe, ngwaahịa ndị a nwetara nwere ahaziri ahazi na nke rụrụ arụ, njupụta pụtara ìhè kwesịrị ekwesị na arụmọrụ nhazi dị mma. Agbanyeghị, iji Hydroxypropyl Methylcellulose naanị nwere ike inye aka mee ka resin ghara ịdị mma. N'ozuzu arụmọrụ nke resin adịghị mma. Ojiji nke hydroxypropyl methylcellulose na ọtụtụ mmanya mmanya mmanya polyvinyl dị iche iche nwere ike ime ka arụmọrụ nke ngwaahịa dịkwuo mma, àgwà dị mfe ịchịkwa ma n'otu oge ahụ nwere ike ibelata ọnụ ahịa. Onye na-achụsa ihe bụ isi ihe na-emetụta ọdịdị ahụ nke resin polyvinyl chloride. The nta n'elu erughị ala nke aqueous ngwọta nke izugbe dispersing mmadụ na interfacial esemokwu na Vinyl chloride monomer bụ, nke kacha mma na VCM ụmụ irighiri mmiri mmiri nwere ike gbasasịa. Ya mere, dayameta nke resin PVC ga-adị ntakịrị. Ike nchebe nke onye na-achụsa ihe na-esiwanye ike, ka ihe ndị na-emepụta ihe ndị na-emepụta ihe na-emepụta PVC ga-adịkwu nso na obere porosity ga-adị. Na intergranular coalescence dịkwa ike karị, ya mere ọ dị mfe ịmepụta resins.
Dị ka ihe atụ, na compound dispersion usoro nke PVA na HPC, na elu alcoholysis ogo PVA bụ, ukwuu n'elu erughị ala nke aqueous ngwọta ga-ike na ike nchebe ga-adị, mgbe a ụfọdụ ịta nke hydroxypropyl methylcellulose nwere. mmetụta mgbasa ozi ọma. Ya mere, iji PVA nwere ogo mmanya dị elu dị ka nke mbụ
onye na-achụsa ihe, na ịgbakọta a
ego ole hydroxypropyl methylcellulose
dị ka onye na-achụsa ihe maka nkwusioru polymerization, ọ dị mfe ịkwadebe resin PVC nke nwere ike izute ihe achọrọ nke morphology. Dị ka ihe atụ, na compound dispersion usoro nke PVA na HPC, na elu alcoholysis ogo PVA bụ, ukwuu n'elu erughị ala nke aqueous ngwọta ga-ike na ike nchebe ga-adị, mgbe a ụfọdụ ịta nke hydroxypropyl methylcellulose nwere. mmetụta mgbasa ozi ọma.
Oge nzipu: Mar-17-2022