Hydroxypropylmethylrubicin (HPMC) bụ ihe cellulosic, pulp ma ọ bụ owu nke enwere ike iji mee ka anụcha osisi. Tupu alkalization ma ọ bụ alkalization usoro ga-ebibi. Mechanical mmebi nwere ike ibibi nchịkọta mkpokọta nke akwụkwọ cellulose ihe onwunwe, si otú ibelata polymerization na crystallinity, na-amụba ya kpọmkwem elu ebe, si otú ịba ụba matriks nwere ike ịbụ macromolecular ternary na cellulose.
A na-eji Hydroxymethylcellulose mee ihe dị ka ihe na-emepụta mmanụ. Ụdị ihe eji eme ihe nwere ike mezue ojiji shuga, melite ọnụego ojiji nke ihe, belata ihe fọdụrụ na mkpụrụ osisi na mmiri mmiri ịgba ụka, ma belata ọnụ ahịa ọgwụgwọ mmiri n'efu. Njirimara nke ngwakọta na-eme ka njikarịcha nke batch, nri-ogbe na usoro ịgba ụka na-aga n'ihu, na-ezere ịmegharị ihe ndị na-ajụ ase na ọnụego dilution, ma na-akwadokwa nhazi nke usoro ịgba ụka. Ebe ọ bụ na HPMC nwere otu ọrụ ahụ dị ka ethers ndị ọzọ na-agba mmiri, enwere ike iji ya dị ka onye na-emepụta ihe nkiri, thickener, emulsifier na stabilizer maka agba latex na agba resin mmiri na-edozi mmiri, na-enwe ezigbo nguzogide eyi, mkpuchi otu na adhesion Lekwasị anya na. imeziwanye esemokwu elu, nkwụsi ike acid-base na ndakọrịta na pigmenti ọla.
Ihe mejupụtara hydroxypropylmethylcellulose (HPMC) na-emebi emebi, mana na ụkpụrụ, mana mfu mkpụrụ, isi..etherification, mgbasa.
Mgbake onye nnọchi anya site na centrifugation, ịsa, ihicha na imetụ gburugburu ebe obibi ọ bụla bara ụba na nka na ihe ọmụma bụ isi.
Ngwá ọrụ inyeaka na njikwa elekere ga-enyere aka hụ na ngwaahịa ngwaahịa na usoro mmepụta ihe a pụrụ ịdabere na ya. Na-emetụta ọnụọgụ mmiri dị na hypromellose dry-mix mortar nke na-ejigide mmiri hydroxypropyl methylcellulose ether mortar iji kwalite hydration nke ciment, ngwa ngwa na mkpụrụ osisi na-aga n'ihu iji mee ka oge ntanye dịkwuo elu.
Enwere isi mmetụta nke njide mmiri, njide mmiri, njide mmiri bụ putty ntụ ntụ, adhesion na lubrication ọrụ. A na-eji ya n'ọtụtụ ebe na ụlọ ọrụ ihe owuwu, ụlọ ọrụ agba na ọtụtụ ụlọ ọrụ ndị ọzọ, hydroxypropyl methylcellulose dị mkpa maka ụlọ ọrụ mmepụta ihe.mmepụta nke hydroxypropyl methylcellulose. Okpomọkụ gelation thermal dị elu nke ukwuu karịa nke methylcellulose. Lime na soda nwere mmetụta dị nta na arụmọrụ, ma ọ nwere ike mee ka mgbasa nke matriks dịkwuo ngwa ma mee ka viscosity dịkwuo elu. Mgbe mmanya polyvinyl, starch ether, akwukwo nri chịngọm na hydroxypropyl methylcellulose agba, wdg, ngwaahịa ngwọta nke n'elu Ọdịdị. Mgbe ị na-eji ngwa agha, gypsum, putty ntụ ntụ ma ọ bụ ihe ndị ọzọ dị ka nrapado, ọ nwere ike imeziwanye arụmọrụ na ogologo oge ọrụ. Enwere ike iji ya mee ihe ịchọ mma, taịlị taịlị, marble, rọba ma belata ojiji ciment ụgha. Mmiri na-ejide mmiri mgbe ihichachara agaghị agbawa ngwa ngwa, na ike mgbe ọgwụgwọ gasịrị ka mma.
Oge nzipu: Dec-20-2022