Kedu ihe bụ hydroxyethyl methyl cellulose (HEMC)?

Kedu ihe bụ hydroxyethyl methyl cellulose (HEMC)?

 Hydroxyethyl methylcellulose(HEMC) a makwaara dị ka methylhydroxyethyl cellulose (MHEC). Ọ bụ urughuru ọcha na-acha ọcha, na-acha ntụ ntụ, ma ọ bụ odo odo. Ọ bụ ether cellulose na-abụghị ionic enwetara site n'ịgbakwụnye ethylene oxide na methyl cellulose. Ọ na-mere si eke mmeghari polymers dị ka osisi pulp ma ọ bụ owu, na HEMC nwere ike na-eji dị ka a elu-arụmọrụ mmiri na-ejigide gị n'ụlọnga, nrapado na film akpụ gị n'ụlọnga, stabilizer, wdg A na-eji ya n'ọtụtụ ebe dị iche iche ulo oru ngwa, dị ka mmanụ. igwu mmiri, ihe owuwu na ihe owuwu, agba na mkpuchi, ọgwụ, wdg.HEMCnwere ike gbanwee dị ka ahịa chọrọ, na mgbe mgbanwe, ọ ka nwere ezi iguzogide sagging na ezi processability. Achọrọ ijiHEMCmaka ulo oru nzube? Biko kpọtụrụ onye na-eweta ngwaahịa a pụrụ ịdabere na yahydroxyethyl methyl celluloseiji nweta ezigbo azụmahịa.

Njirimara HEMC

HEMCnwere ọrụ dị iche iche. Ha gụnyere:

1. Ọdịdị

 HEMCnwere ike na-acha ọcha, ìhè edo edo, odo ọcha, ma ọ bụ isi awọ ọcha.

2. Solubility

HEMCsoluble na mmiri (oyi ma ọ bụ na-ekpo ọkụ). AgbanyeghịHEMCbụ ihe a na-adịghị ahụkebe na ọtụtụ ihe mgbaze organic, ọ bụ soluble na ọnụọgụ abụọ organic solvents na organic ihe mgbaze mmiri usoro.

Ọnụnọ ya dị elu na-adabere na viscosity, na solubility ya dịgasị iche na viscosity. Na ala viscosity, nke ukwuu solubility, na vice versa.

3. Nkwụsi ike nke pH

 HEMCkwụsiri ike na oke nke 3.0-11.0 na viscosity ya fọrọ nke nta ka ọ ghara emetụta ya, mana gafere oke a ga-ebelata viscosity ya.

4. Metabolism

 HEMCbụ ihe na-adịghị agwụ agwụ nke a na-ejikarị eme ihe na nri na ọgwụ n'ihi enweghị ike ịmegharị metabolism.

5. Ọrụ elu

N'ihi ọrụ elu ya na-arụ ọrụ na ngwọta mmiri, enwere ike iji ya dị ka onye na-ekesa, ihe nchebe, na emulsifier.

6. Nguzogide ero

Na nchekwa ogologo oge,HEMCnwere ezi viscosity kwụsie ike, ya mere o nwere ezi ebu iguzogide.

Ike mgbochi ebu ya dị elu karịa nke hydroxyethyl cellulose.

7. Njide mmiri

 HEMCna-aghọ onye na-ejigide mmiri dị irè n'ihi nnukwu viscosity ya na ngwọta mmiri.

Ike njide mmiri ya karịrị nke methyl cellulose.

8. Ash ọdịnaya

Usoro nkwadebe nkeHEMCna-eji ịsacha mmiri ọkụ, na-ebute ọdịnaya ntụ dị ntakịrị.

9. Thermal conductive nrapado

MgbeHEMCngwọta na-ekpo ọkụ na okpomọkụ ụfọdụ, nghọta ya na-ebelata, na-emepụta sedimenti na gel, ma ọ bụrụ na ọ dị mma, ọ ga-alaghachi na ọnọdụ mbụ nke ngwọta ahụ.

A na-ejikarị eme iheHEMC

 Hydroxyethylmethylcelluloseenwere ike iji dị ka:

Ø AdhesiveØ Nchekwa colloidØ ThickenerØ Ihe nkiri na-emepụta onye nnọchi anya Emulsifier LubricantØ Onye nnọchi anya nkwusioru.

Ngwa ụlọ ọrụ nkeHEMC

 HEMCa na-ejikarị eme ihe na ụlọ ọrụ ndị a:

· Aggregation·Cermics·Ihe ịchọ mma · Mwube · nri na ihe ọṅụṅụ · Ọgwụ · agba na mkpuchi · Ink na mkpọ mmanụ

Dị ka e kwuru na mbụ,hydroxyethyl methylcellulose (HEMC) bụ ihe sitere na methylcellulose. Ọ bụ ether cellulose na-abụghị ionic nke sitere na akụrụngwa owu na-adị ọcha.HEMC's mmiri njide na ndim ike ike na-eme ka ọ dị mma maka mmiri dabeere na latex agba, inks na mmanụ ụgbọala, ihe ụlọ, wdg N'ihi ya n'ọtụtụ ebe na ngwa dị iche iche, inweta.HEMCsitere na ndị na-ebubata hydroxyethyl methyl cellulose a ma ama nwere ike hụ na ị nwetara ngwaahịa dabara adaba maka ojiji nkeonwe ma ọ bụ ụlọ ọrụ.