Ojiji nke hydroxypropyl methylcellulose HPMC

1. Gịnị bụ isi nzube nke hydroxypropyl methyl cellulose (HPMC)?

A na-eji HPMC eme ihe n'ọtụtụ ebe na ihe owuwu, mkpuchi, resins sịntetik, ceramik, ọgwụ, nri, textiles, ọrụ ugbo, ihe ịchọ mma, ụtaba na ụlọ ọrụ ndị ọzọ.Enwere ike kewaa HPMC ka ọ bụrụ ọkwa ihe owuwu, ọkwa nri na ọkwa ahụike dịka ebumnuche ya siri dị.Ka ọ dị ugbu a, ọtụtụ ngwaahịa ụlọ bụ ọkwa ihe owuwu.Na ọkwa ihe owuwu, a na-eji ntụ ntụ na-eme ihe na nnukwu ego, ihe dịka 90% na-eji ntụ ntụ eme ihe, ndị ọzọ na-eji ciment mortar na gluu.

2. Enwere ọtụtụ ụdị hydroxypropyl methyl cellulose (HPMC).Kedu ihe dị iche na ojiji ha?

Enwere ike ikewa HPMC n'ụdị ozugbo na ụdị agbaze ọkụ.Ngwa ngwa ụdị ngwa ngwa na-agbasa ngwa ngwa na mmiri oyi wee pụọ na mmiri.N'oge a, mmiri mmiri enweghị viscosity, n'ihi na HPMC na-agbasasị naanị na mmiri na-enweghị ezigbo mgbasa.Ihe dị ka nkeji 2, viscosity nke mmiri mmiri ahụ ji nwayọọ nwayọọ na-abawanye, na-eme ka colloid viscous na-apụta ìhè.Ngwaahịa na-ekpo ọkụ na-ekpo ọkụ, mgbe ọ zutere mmiri oyi, ọ nwere ike gbasaa ngwa ngwa na mmiri ọkụ wee pụọ na mmiri ọkụ.Mgbe okpomọkụ na-adaba na ụfọdụ okpomọkụ, viscosity na-apụta nwayọọ nwayọọ ruo mgbe a na-emepụta colloid viscous transperent.Ụdị agbaze ọkụ nwere ike iji naanị na ntụ ntụ na ngwa ngwa.N'ime gluu mmiri mmiri na agba, clumping na-apụta na enweghị ike iji ya.Ụdị ngwa ngwa nwere ọtụtụ ngwa ngwa.Enwere ike iji ya na ntụ ntụ na ngwa ngwa, yana gluu mmiri na agba.Enweghị contraindication.

3. Gịnị bụ mgbasa ụzọ nke hydroxypropyl methylcellulose HPMC?

Usoro mgbaze mmiri ọkụ: Ebe HPMC adịghị igbari na mmiri ọkụ, HPMC nwere ike uniformly chụsasịrị na mmiri ọkụ na mbụ ogbo, na mgbe ahụ ngwa ngwa igbari n'oge jụrụ.A na-akọwa ụzọ abụọ ahụkarị dị ka ndị a:

1).Tinye 1/3 ma ọ bụ 2/3 nke mmiri achọrọ n'ime akpa wee kpoo ya ruo 70 Celsius.gbasasịa HPMC iji kwadebe slurry mmiri ọkụ;wee tinye ihe fọdụrụ nke mmiri oyi na mmiri ọkụ Na slurry, dị jụụ ngwakọta mgbe edemede.

Usoro ngwakọta ntụ ntụ: Gwakọta ntụ ntụ HPMC na nnukwu ihe ndị ọzọ na-eme ntụ ntụ, gwakọta nke ọma na blender, wee gbakwunye mmiri ka ọ gbazee, mgbe ahụ, HPMC nwere ike gbazee n'oge a na-enweghị clumping na agglomerating, n'ihi na ọ bụla obere akụkụ, ọ dị ntakịrị ntakịrị. nke HPMC ntụ ntụ ga-agbaze ozugbo ọ zutere mmiri.-Putty ntụ ntụ na ndị na-emepụta ngwa agha na-eji usoro a.A na-eji hydroxypropyl methyl cellulose (HPMC) mee ihe dị ka onye na-eme ihe na-ekpo ọkụ na mmiri na-eme ka mmiri na-ekpo ọkụ na-esi ísì ụtọ.

Tinye mmiri ọkụ achọrọ n'ime akpa ahụ wee kpoo ya ihe dịka 70 Celsius.Jiri nwayọọ nwayọọ tinye hydroxypropyl methylcellulose hydroxypropyl, malite HPMC na-ese n'elu mmiri, wee jiri nwayọọ nwayọọ mepụta slurry, ma mee ka slurry na-akpali akpali.