1. A na-ekewa HPMC n'ime ụdị ngwa ngwa na ụdị mgbasa ozi ngwa ngwa.
Ụdị mgbasa ngwa ngwa HPMC nwere mkpụrụedemede S dị ka suffix. Ekwesịrị ịgbakwunye Glyoxal n'oge usoro mmepụta.
Ụdị mgbasa ozi ngwa ngwa HPMC anaghị atụkwasị mkpụrụedemede ọ bụla, dị ka "100000" pụtara "100000 viscosity ngwa ngwa-achụsasị HPMC".
2. Na ma ọ bụ na-enweghị S, njirimara dị iche iche
HPMC na-agbasa ngwa ngwa na-agbasa ngwa ngwa na mmiri oyi wee pụọ n'ime mmiri. Mmiri mmiri enweghị viscosity n'oge a n'ihi na HPMC na-agbasasị na mmiri na ọ bụghị n'ezie agbaze. Mgbe ihe dị ka nkeji abụọ gachara, viscosity nke mmiri mmiri na-eji nwayọọ nwayọọ na-abawanye, na-eme ka mmiri na-apụta ìhè. Colloid siri ike.
Enwere ike ịgbasa HPMC ngwa ngwa n'ime mmiri ọkụ na gburugburu 70 Celsius. Mgbe okpomọkụ na-adaba na ụfọdụ okpomọkụ, viscosity na-apụta nwayọọ nwayọọ ruo mgbe a na-emepụta colloid viscous transperent.
3. Na ma ọ bụ na-enweghị S, ebumnuche dị iche
Enwere ike iji HPMC ozugbo na ntụ ntụ na ngwa agha. N'ime gluu mmiri mmiri, agba na ihe nchacha, mkpọchị nwere ike ime wee bụrụ nke a na-apụghị iji ya mee ihe.
HPMC na-achụsasị ngwa ngwa nwere ngwa dị ukwuu. Enwere ike iji ya maka ntụ ntụ putty, ngwa agha, gluu mmiri, agba, na ihe nhicha na-enweghị ihe ọ bụla.
usoro mgbasa
1. Were mmiri ọkụ achọrọ, tinye ya n'ime akpa ma kpoo ya n'elu 80 ℃, wee jiri nwayọọ nwayọọ tinye ngwaahịa a na-akpali akpali. Cellulose na-ese n'elu mmiri na mbụ, ma jiri nwayọọ nwayọọ gbasaa ka ọ ghọọ otu slurry. Mee ka ngwọta ahụ dị jụụ mgbe ị na-akpali.
2. Ma ọ bụ kpoo 1/3 ma ọ bụ 2/3 nke mmiri ọkụ na-ekpo ọkụ n'elu 85 Celsius C, tinye cellulose iji nweta mmiri ọkụ na-ekpo ọkụ, wee gbakwunye ihe fọdụrụ nke mmiri oyi, na-emegharị na-aga n'ihu, ma mee ka ngwakọta ahụ dị jụụ.
3. Cellulose nwere a dịtụ mma ntupu size na dị ka otu obere ahụ na uniformly kpaliri ntụ ntụ. Ọ na-agbaze ngwa ngwa mgbe ekpughere ya na mmiri iji mepụta viscosity achọrọ.
4. Tinye cellulose nwayọọ nwayọọ na ọnụ ụlọ okpomọkụ, na-akpali akpali ruo mgbe ngwọta doro anya na-apụta.
Kedu ihe na-emetụta njigide mmiri nke hydroxypropyl methylcellulose?
Njide mmiri nke ngwaahịa HPMC hydroxypropyl methylcellulose n'onwe ya na-emetụtakarị ihe ndị a:
1. Homogeneity nke cellulose ether HPMC
Ndị otu HPMC methoxy na hydroxypropoxy a na-emeghachi omume na-ekesa nke ọma ma nwee njigide mmiri dị elu.
2. Cellulose ether HPMC thermal gel okpomọkụ
Dị elu okpomọkụ nke thermal conductive gel, nke dị elu nke njide mmiri; N'aka nke ọzọ, na-ebelata ọnụ ọgụgụ njide mmiri.
3. Viscosity nke cellulose ether HPMC
Mgbe viscosity nke HPMC na-abawanye, njigide mmiri na-abawanye; mgbe viscosity rutere n'ogo ụfọdụ, mmụba nke njide mmiri na-eme ka ọ dị nro.
Ọnụ ego mgbakwunye cellulose ether HPMC
Ọnụ ọgụgụ dị ukwuu nke cellulose ether HPMC gbakwunyere, ọnụ ọgụgụ dị elu nke njide mmiri na-eme ka mmetụta njide mmiri dịkwuo mma.
Na nso nke 0.25-0.6%, njigide mmiri na-abawanye ngwa ngwa ka ego mgbakwunye na-abawanye; mgbe ego mgbakwunye na-abawanye, mmụba na-emekarị nke njide mmiri na-ebelata.
Oge nzipu: Feb-06-2024