Hydroxypropyl methylcellulose (HPMC)bụ ihe na-abụghị ionic cellulose ether nke a na-ejikarị eme ihe ụlọ, ọgwụ, nri, ihe ịchọ mma na ụlọ ọrụ ndị ọzọ. Ihe ngosi teknụzụ bụ isi nke HPMC gụnyere akụrụngwa anụ ahụ na kemịkalụ, solubility, viscosity, ogo nke nnọchi, wdg.
1. Ọdịdị na njirimara ndị bụ isi
HPMC na-abụkarị ntụ ọcha ma ọ bụ na-acha ọcha, enweghị isi, enweghị ụtọ, adịghị egbu egbu, nwere ezigbo mmiri solubility na nkwụsi ike. Ọ nwere ike gbasasịa ngwa ngwa na igbari na mmiri oyi iji mepụta ngwọta colloidal transperent ma ọ bụ ubé turbid, ma nwee adịghị ike solubility na organic solvents.
2. Viscosity
Viscosity bụ otu n'ime ihe ngosi teknụzụ kachasị mkpa nke HPMC, nke na-ekpebi arụmọrụ AnxinCel®HPMC na ngwa dị iche iche. A na-atụkarị viscosity nke HPMC dị ka ngwọta mmiri 2% na 20ºC, na viscosity nso sitere na 5 mPa·s ruo 200,000 mPa·s. Nke dị elu nke viscosity, otú ahụ ka mmetụta siri ike nke ngwọta na-esiwanye ike na mma rheology. Mgbe ejiri ya na ụlọ ọrụ dịka ihe owuwu na ọgwụ, a ga-ahọrọ ọkwa viscosity kwesịrị ekwesị dịka mkpa dị iche iche si dị.
3. Methoxy na Hydroxypropoxy ọdịnaya
A na-ekpebi njirimara kemịkalụ nke HPMC site na methoxy (–OCH₃) na hydroxypropoxy (–OCH₂CHOHCH₃) ogo nnọchi. HPMC nwere ogo ngbanwe dị iche iche na-egosiputa solubility dị iche iche, ọrụ elu yana okpomọkụ gelation.
Ọdịnaya Methoxy: Ọtụtụ mgbe n'etiti 19.0% na 30.0%.
Ọdịnaya Hydroxypropoxy: Ọtụtụ mgbe n'etiti 4.0% na 12.0%.
4. Ọdịnaya Ọdịnaya
A na-achịkwa ọdịnaya mmiri nke HPMC na ≤5.0%. Ọdịnaya dị elu nke mmiri ga-emetụta nkwụsi ike na mmetụta ojiji nke ngwaahịa ahụ.
5. Ash ọdịnaya
Ash bụ ihe fọdụrụ ka agbachara HPMC ọkụ, tumadi site na nnu inorganic eji na usoro mmepụta. A na-achịkwakarị ọdịnaya ntụ na ≤1.0%. Ọdịnaya ntu dị elu nwere ike imetụta nghọta na ịdị ọcha nke HPMC.
6. Solubility na nghọta
HPMC nwere ezigbo mmiri solubility ma nwee ike igbari ngwa ngwa na mmiri oyi iji mepụta ngwọta colloidal otu. Nghọta nke ngwọta na-adabere na ịdị ọcha nke HPMC na usoro mgbasa ya. Ihe ngwọta HPMC dị elu na-adịkarịkwa nghọta ma ọ bụ ntakịrị mmiri ara ehi.
7. Gel okpomọkụ
Ihe ngwọta mmiri HPMC ga-etolite jel na ụfọdụ okpomọkụ. Okpomọkụ gel ya na-adịkarị n'etiti 50 na 90 Celsius, dabere na ọdịnaya nke methoxy na hydroxypropoxy. HPMC nwere ọdịnaya methoxy dị ala nwere okpomoku jel dị elu, ebe HPMC nwere ọdịnaya hydroxypropoxy dị elu nwere okpomoku jel dị ala.
8. pH uru
Uru pH nke ngwọta mmiri mmiri AnxinCel®HPMC na-abụkarị n'etiti 5.0 na 8.0, nke na-anọpụ iche ma ọ bụ na-adịghị ike alkaline ma dabara maka mpaghara ngwa dị iche iche.
9. Oke urughuru
A na-ekwupụta ịdị mma nke HPMC dị ka pasentị na-agafe na ihuenyo 80-mesh ma ọ bụ 100-mesh. A na-achọkarị ka ≥98% gafere ihuenyo 80-mesh iji hụ na ọ nwere ezigbo dispersibility na solubility mgbe ejiri ya.
10. Ọdịnaya igwe dị arọ
Ọdịnaya igwe dị arọ (dị ka lead na arsenic) nke HPMC ga-agbasorịrị ụkpụrụ ụlọ ọrụ dị mkpa. Ọtụtụ mgbe, ọdịnaya ụzọ bụ ≤10 ppm yana ọdịnaya arsenic bụ ≤3 ppm. Karịsịa na nri na ọkwa ọgwụ HPMC, ihe ndị a chọrọ maka ọdịnaya ọla dị arọ bụ nke siri ike karị.
11. Microbial egosi
Maka ọkwa ọgwụ na nri AnxinCel®HPMC, a ga-achịkwa mmetọ microbial, gụnyere mkpokọta ógbè, ebu, yist, E. coli, wdg, na-achọkarị:
Ngụkọta ọnụ ọgụgụ obodo ≤1000 CFU/g
Mkpokọta ebu na yist ọnụ ≤100 CFU/g
E. coli, Salmonella, wdg agaghị achọpụta
12. Isi ngwa mpaghara
A na-eji HPMC eme ihe n'ọtụtụ ụlọ ọrụ n'ihi njupụta ya, njigide mmiri, imepụta ihe nkiri, mmanu mmanu, emulsification na ihe ndị ọzọ:
Ụlọ ọrụ na-ewu ihe: Dị ka onye na-agbapụta mmiri na mmiri na-ejide mmiri na ciment mortar, putty powder, tile adhesive, and waterproof coating iji melite arụmọrụ ụlọ.
Ụlọ ọrụ na-emepụta ọgwụ: A na-eji ya dị ka ihe nrapado, ihe na-ahapụ ya, yana capsule shei akụrụngwa maka mbadamba ọgwụ.
Ụlọ ọrụ nri: eji eme ihe dị ka emulsifier, stabilizer, thickener, eji na jelii, ihe ọṅụṅụ, ngwaahịa esi nri, wdg.
Ụlọ ọrụ kemịkalụ kwa ụbọchị: ejiri ya dị ka thickener na emulsifier stabilizer na ngwaahịa nlekọta anụ ahụ, ncha, na ncha ntutu.
The oru egosi nkeHPMCna-agụnye viscosity, ogo nke nnọchi (hydrolyzed otu ọdịnaya), mmiri, uyi ọdịnaya, pH uru, gel okpomọkụ, fineness, arọ metal ọdịnaya, wdg Ndị a na-egosi na-ekpebi ya ngwa arụmọrụ na dị iche iche ubi. Mgbe ị na-ahọrọ HPMC, ndị ọrụ kwesịrị ikpebi nkọwa ndị kwesịrị ekwesị dị ka ngwa ngwa chọrọ iji hụ na nsonaazụ kacha mma.
Oge nzipu: Feb-11-2025