Ọkwa mmiri ọgwụ kwa ụbọchị hydroxypropyl methylcellulose!

Hydroxypropyl methyl cellulose (HPMC) bụ polymer na-abụghị ionic, ether na-abụghị ionic cellulose ether nke sitere n'okike polymer ihe cellulose. Ngwaahịa ahụ enweghị isi, enweghị ụtọ, ntụ ntụ ọcha na-adịghị egbu egbu, enwere ike ịgbaze na mmiri oyi iji mepụta ngwọta viscous na-apụta ìhè, na-enwe nkụda mmụọ, njikọta, ịgbasa, emulsifying, imepụta ihe nkiri, nkwusioru, adsorbing, gelling, ọrụ elu, Akụkụ ndị dị otú ahụ. dị ka mmiri njigide na nchebe colloid.

A na-ejikarị HPMC ọkwa ọkwa ngwa ngwa na kemịkalụ textile, ngwaahịa nhicha kemịkalụ kwa ụbọchị, ihe ịchọ mma na mpaghara ndị ọzọ; dị ka ncha ntutu, ịsa ahụ, ihe na-ehicha ihu, ude mmiri, ude, gel, toner, ntutu isi, ngwaahịa ịke, ntacha eze, Saliva, mmiri afụ ụmụaka, wdg.

Njirimara ngwaahịa nke ọkwa hydroxypropyl methyl cellulose kwa ụbọchị gụnyere:

1. Ihe ndị e kere eke, obere mgbakasị ahụ, arụmọrụ dị nro, nchekwa na nchebe gburugburu ebe obibi;

2. Mmiri-soluble na ndim: enwere ike igbari ya na mmiri oyi ozugbo, soluble na ụfọdụ ihe mgbaze organic na ngwakọta nke mmiri na ihe mgbaze mmiri;

3. Thickening na viscosity-na-abawanye: obere mmụba na mgbasa ga-etolite ngwọta viscous transperent, nghọta dị elu, arụmọrụ kwụsiri ike, mgbanwe solubility na viscosity, na-ebelata viscosity, nke ka ukwuu; n'ụzọ dị irè kwalite nkwụsi ike eruba nke usoro ahụ;

4. Nguzogide nnu: HPMC bụ polymer na-abụghị ionic, nke kwụsiri ike na ngwọta mmiri nke salts metal ma ọ bụ organic electrolytes;

5. Ọrụ elu: ngwọta mmiri mmiri nke ngwaahịa ahụ nwere ọrụ elu, ma nwee ọrụ na njirimara nke emulsification, colloid nchebe na nkwụsi ike ikwu; esemokwu elu bụ: 2% ngwọta mmiri bụ 42-56dyn / cm;

6. Nkwụsi ike PH: viscosity nke ngwọta mmiri na-akwụsi ike n'ime oke nke PH3.0-11.0;

7. Mmetụta na-ejide mmiri: ihe onwunwe hydrophilic nke HPMC nwere ike ịgbakwunye na slurry, pasty na pasty ngwaahịa iji nọgide na-enwe mmetụta dị elu nke mmiri;

8. Thermal gelation: Mgbe mmiri mmiri na-ekpo ọkụ na-ekpo ọkụ na ụfọdụ okpomọkụ, ọ na-aghọ opaque ruo mgbe ọ na-etolite a (poly) flocculation steeti, nke na-eme ka ngwọta na-efunahụ viscosity. Ma mgbe jụrụ oyi, ọ ga-aghọ ọzọ ngwọta ngwọta mbụ. Okpomọkụ nke ihe omume gel na-adabere n'ụdị ngwaahịa, ntinye nke ngwọta na ọkụ ọkụ;

9. Àgwà ndị ọzọ: magburu onwe film-akpụ Njirimara, na a dịgasị iche iche nke enzyme resistance, dispersibility na cohesiveness, wdg.