Okwu Mmalite nke Hydroxyethyl Methyl Cellulose HEMC

Ozi bụ isi nkeCellulose Hydroxyethyl Methyl

Aha ndị China: hydroxyethyl methyl cellulose
Aha Bekee: Hymetellose328
Aha ndị China: hydroxyethyl methyl cellulose; hydroxyethyl methyl cellulose; hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl ether cellulose
Aha ndị Bekee a na-akpọ: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
Kemịstrị: Hydroymethylmethylelecellulose; Hydroxyethylmethylcellulose; Hydroxymethylethylcellulose.

Mkpụrụ ndụ ihe nketa: C2H6O2 xCH4O x PhEur 2002 kọwara hydroxyethylmethylcellulose dị ka nke nwere akụkụ O-methylated, nke nwere akụkụ O-hydroxymethylated. Nkọwapụta dị iche iche na-egosi viscosity doro anya na mPa s nke mmiri mmiri 2% w/v na 20°C.
Ibu molekul: PhEur 2002 kọwara hydroxyethylmethylcellulose dị ka nke nwere akụkụ O-methylated, nke nwere akụkụ O-hydroxymethylated. Nkọwapụta dị iche iche na-egosi viscosity doro anya na mPa s nke mmiri mmiri 2% w/v na 20°C.

Isi ihe dị na hydroxyethyl methyl cellulose (HEMC) bụ:

1. Mmiri na-agbaze: a na-agbaze na mmiri na ụfọdụ ihe mgbaze organic, enwere ike ịgbaze HEMC na mmiri oyi, oke ntinye ya na-ekpebi naanị site na viscosity, mmiri na-agbaze na-agbanwe ka viscosity si dị, obere viscosity ahụ, otú ahụ ka mmiri na-agbaze na-abawanye.

2. Nguzogide nnu: Ngwaahịa HEMC bụ ihe ndị na-abụghị ionic cellulose ethers, ha abụghịkwa polyelectrolytes, yabụ na ha nwere nnu ígwè ma ọ bụ ihe ndị na-emepụta ihe ndị dị ndụ, ha na-adịgide adịgide na mmiri mmiri, mana itinye electrolytes gabiga ókè nwere ike ibute gelation na mmiri ozuzo.

3. Ọrụ elu: Ebe ọ bụ na mmiri mmiri nwere ọrụ ọrụ elu, enwere ike iji ya dị ka ihe nchebe colloid, emulsifier na dispersant.

4. Gel okpomọkụ: Mgbe a na-ekpo ọkụ mmiri mmiri nke ngwaahịa HEMC ruo n'okpomọkụ ụfọdụ, ọ na-aghọ ihe na-adịghị agbanwe agbanwe, gels, ma na-emepụta ihe na-eme ka ọ dị ka ihe na-eme ka ọ dị mmiri mmiri, mana mgbe ọ na-ajụ oyi mgbe niile, ọ na-alaghachi n'ọnọdụ mmiri mbụ ahụ, gel na mmiri ozuzo a na-apụtakwa. Okpomọkụ ahụ dabere na mmanụ ha, ihe enyemaka nkwụsịtụ, colloids nchebe, emulsifiers, wdg.

5. Enweghị ike ịrụ ọrụ nke metabolic na obere isi na isi ísì: A na-ejikarị HEMC eme ihe n'ọtụtụ nri na ọgwụ n'ihi na anaghị eme ka ọ gbazee ma nwee obere isi na isi ísì.

6. Ọgwụ nje: HEMC nwere ezigbo ikike nje bacteria na ezigbo nkwụsi ike n'oge nchekwa ogologo oge.

7. Ịkwụsi ike PH: Ọdịdị nkeỤlọ ọrụ ahụike (HEMC)ihe ngwọta mmiri nke ngwaahịa anaghị emetụta acid ma ọ bụ alkali nke ọma, uru pH ahụ kwụsiri ike n'etiti 3.0-11.0.

Ojiji: Enwere ike iji Hydroxyethyl methyl cellulose dị ka ihe nchebe colloid, emulsifier na mgbasa ozi n'ihi ọrụ dị n'elu nke mmiri mmiri. Ihe atụ nke ojiji ya bụ ndị a: Mmetụta nke hydroxyethyl methyl cellulose na ihe onwunwe nke simenti. Hydroxyethyl methylcellulose bụ ntụ ọcha na-enweghị isi, enweghị uto, na-adịghị egbu egbu nke na-agbaze na mmiri oyi iji mepụta ngwọta doro anya, viscous. O nwere ihe onwunwe nke ịka njọ, ijikọ, ịgbasa, emulsifying, ịmepụta ihe nkiri, nkwụsịtụ, ịtinye ihe, gelling, na-arụ ọrụ n'elu, na-ejigide mmiri na ichebe colloids. N'ihi ọrụ dị n'elu nke mmiri mmiri, enwere ike iji ya dị ka ihe nchebe colloid, emulsifier na mgbasa. Mmiri mmiri Hydroxyethyl methyl cellulose nwere ezigbo hydrophilicity ma bụrụ ihe na-ejide mmiri nke ọma.