(Hydroxypropyl)methyl cellulose | CAS Nr .: 9004-65-3

(Hydroxypropyl) methyl cellulose, tseem paub los ntawm nws lub npe hu ua HPMC lossis nws tus lej CAS 9004-65-3, yog cellulose ether muab los ntawm ntuj cellulose. Nws yog ib tug semi-synthetic polymer uas yog dav siv nyob rau hauv ntau yam industries vim nws tshwj xeeb zog thiab versatility. Nov yog saib ze dua ntawm qhov sib xyaw no:

Structure thiab Properties:
1 Cov Qauv: HPMC yog tsim los ntawm kev hloov kho tshuaj ntawm cellulose, qhov twg ob pawg methyl (-CH3) thiab hydroxypropyl (-CH2CHOHCH3) tau nkag mus rau hauv cov pob txha cellulose.
2 Degree of Substitution (DS): Qhov degree ntawm kev hloov pauv yog hais txog qhov nruab nrab ntawm cov neeg hloov pauv ib pawg piam thaj hauv cov saw cellulose. Nws txiav txim siab cov yam ntxwv ntawm HPMC, xws li solubility, viscosity, thiab muaj peev xwm ua zaj duab xis.
3 Cov Khoom: HPMC nthuav tawm cov khoom xws li thickening, tuav dej, tsim zaj duab xis, thiab ua haujlwm saum npoo. Cov khoom tuaj yeem hloov kho los ntawm kev tswj hwm DS thaum lub sijhawm sib xyaw.

Kev tsim tawm:
1.Cellulose Sourcing: Cellulose, thawj cov khoom siv raw rau HPMC, yog los ntawm cov khoom siv txuas ntxiv xws li ntoo pulp lossis paj rwb.
Etherification: Cellulose tau txais etherification, qhov twg nws yog reacted nrog propylene oxide los qhia hydroxypropyl pawg thiab ces nrog methyl chloride ntxiv methyl pawg.
2.Purification: Cov hloov kho cellulose yog purified kom tshem tawm impurities thiab by-products, uas ua rau cov khoom HPMC zaum kawg.
Daim ntawv thov:
3.Kev Tsim Kho Kev Lag Luam: HPMC tau siv dav hauv cov khoom siv xws li cement-based mortars, plasters, thiab pobzeb adhesives los txhim kho kev ua haujlwm, dej tuav, thiab adhesion.
4.Pharmaceuticals: Nws ua hauj lwm raws li ib tug binder, thickener, zaj duab xis qub, thiab stabilizer nyob rau hauv cov tshuaj formulations nrog rau cov ntsiav tshuaj, tsiav tshuaj, ophthalmic daws, thiab tshuaj pleev ib ce.
5.Food Industry: HPMC ua cov thickener, stabilizer, thiab emulsifier hauv ntau yam khoom noj xws li kua ntses, hnav khaub ncaws, ice cream, thiab khoom ci.
6.Cov tshuaj pleev ib ce thiab Kev Kho Tus Kheej: Hauv cov tshuaj pleev ib ce thiab cov khoom siv tu tus kheej, HPMC yog siv los ua cov thickener, tshem tawm tus neeg sawv cev, zaj duab xis qub, thiab moisturizer hauv cream, tshuaj pleev, tshuaj zawv plaub hau, thiab gels.
7.Paints thiab Coatings: Nws txhim khu lub viscosity, sag kuj, thiab zaj duab xis tsim cov yam ntxwv ntawm cov dej-raws li xim, adhesives, thiab coatings.
Xaus:
(Hydroxypropyl) methyl cellulose, nrog nws cov kev siv ntau yam thiab cov khoom zoo, yog cov khoom tseem ceeb hauv ntau cov khoom lag luam thiab kev lag luam. Nws lub luag haujlwm hauv kev txhim kho kev ua tau zoo, kev ruaj ntseg, thiab kev ua haujlwm ntawm ntau yam formulations ua rau nws indispensable nyob rau hauv ntau yam sectors. Raws li kev lag luam txuas ntxiv mus tsim kho tshiab, qhov kev thov rau HPMC yuav tsum nyob twj ywm, tsav kev nce qib ntxiv hauv nws txoj kev tsim khoom thiab kev siv.