Hydroxypropyl methylcellulose (HPMC)isiri-ionic cellulose ether inoshandiswa zvakanyanya mukuvaka zvinhu, mishonga, chikafu, cosmetics uye mamwe maindasitiri minda. Iyo ine akawanda akanakisa emuviri zvimiro, izvo zvinoita kuti iite zvakanaka mumashandisirwo akasiyana siyana.
1. Chitarisiko uye solubility
HPMC inowanzova chena kana isina-chena poda, isina kunhuwa, isinganakidze uye isina chepfu. Inogona kunyungudutswa mumvura inotonhora uye mamwe organic solvents (seyakasanganiswa zvinonyungudutsa senge ethanol/mvura uye acetone/mvura), asi isinganyungudike mu pure ethanol, ether uye chloroform. Nekuda kweiyo isiri-ionic hunhu, haizoitirwe electrolytic reaction mune aqueous mhinduro uye haizokanganiswa zvakanyanya ne pH kukosha.
2. Viscosity uye rheology
HPMC aqueous solution ine yakanaka thickening uye thixotropy. Mhando dzakasiyana dzeAnxinCel®HPMC dzine maviscosity akasiyana, uye yakajairika 5 kusvika 100000 mPa·s (2% aqueous solution, 20°C). Mhinduro yaro inoratidza pseudoplasticity, kureva, shear thinning phenomenon, uye inokodzera mamiriro ekushandisa akadai semajasi, slurries, adhesives, nezvimwe zvinoda rheology yakanaka.
3. Thermal gelation
Kana HPMC ichipisa mumvura, kujeka kwemhinduro kunoderera uye gel inoumbwa pane imwe tembiricha. Mushure mekutonhora, iyo gel state ichadzokera kune yakagadziriswa mamiriro. Mhando dzakasiyana dzeHPMC dzine tembiricha dzegel dzakasiyana, kazhinji dziri pakati pe50 ne75°C. Ichi chivakwa chakanyanya kukosha mumashandisirwo akadai sekuvaka dhaka uye mishonga capsules.
4. Chiitiko chepamusoro
Nekuti HPMC mamorekuru ane hydrophilic uye hydrophobic mapoka, anoratidza chimwe chiitiko chepamusoro uye anogona kutamba emulsifying, kuparadzira uye kudzikamisa basa. Semuenzaniso, mukuputira uye emulsions, HPMC inogona kuvandudza kugadzikana kwe emulsion uye kudzivirira sedimentation ye pigment particles.
5. Hygroscopicity
HPMC ine imwe hygroscopicity uye inogona kutora mwando munzvimbo ine mwando. Naizvozvo, mune mamwe maapplication, kutarisisa kunofanirwa kubhadharwa pakurongedza kuvhara kudzivirira kunyura uye kuunganidzwa.
6. Firimu-kugadzira pfuma
HPMC inogona kugadzira firimu rakaoma uye rakajeka, iro rinoshandiswa zvakanyanya mukudya, mushonga (senge maajenti ekuputira) uye machira. Semuyenzaniso, muindasitiri yemishonga, HPMC firimu rinogona kushandiswa sepiritsi coating kuvandudza zvinodhaka kugadzikana uye kudzora kuburitswa.
7. Biocompatibility uye kuchengeteka
HPMC haina chepfu uye haikuvadzi, uye inogona kuchengetedzwa zvakachengetedzeka nemuviri wemunhu, saka inoshandiswa zvakanyanya muminda yemishonga uye chikafu. Semushonga wemishonga, unowanzo shandiswa kugadzira mahwendefa anoramba achiburitswa, capsule shells, nezvimwe.
8. pH kugadzikana kwekugadzirisa
HPMC yakagadzikana mupH ye3 kusvika ku11, uye haisi nyore kuderedzwa kana kunyoroveswa neasidhi nealkali, saka inogona kushandiswa mumhando dzakasiyana dzemakemikari masisitimu, senge zvinhu zvekuvakisa, zvigadzirwa zvemakemikari zvemazuva ese uye kugadzirwa kwemishonga.
9. Kuramba munyu
HPMC mhinduro yakagadzikana kune inorganic munyu uye haisi nyore kunaya kana kusashanda nekuda kwekuchinja kweiyoion concentration, iyo inoigonesa kuchengetedza kuita kwakanaka mune mamwe masisitimu ane munyu (senge simende dhaka).
10. Kugadzikana kwekushisa
AnxinCel®HPMC ine kugadzikana kwakanaka munzvimbo dzekushisa kwepamusoro, asi inogona kudzikisira kana kudzima kana yaiswa kune tembiricha yepamusoro kwenguva yakareba. Iyo inogona kuramba ichichengetedza kuita kwakanaka mukati meimwe tembiricha renji (kazhinji iri pasi pe200 ° C), saka yakakodzera kune yakakwirira-tembiricha yekugadzirisa zvikumbiro.
11. Kugadzikana kwemakemikari
HPMCyakagadzikana kune chiedza, oxidants uye makemikari akajairika, uye haisi nyore kukanganiswa nekunze kwemakemikari zvinhu. Nokudaro, inogona kushandiswa mune zvigadzirwa zvinoda kuchengetedza kwenguva refu, zvakadai sezvigadzirwa zvekuvaka nemishonga.
Hydroxypropyl methylcellulose inoshandiswa zvakanyanya mumaindasitiri mazhinji nekuda kwekunakisisa kunyungudika, kukora, thermal gelation, firimu-kugadzira zvinhu uye kugadzikana kwemakemikari. Muindasitiri yekuvaka, inogona kushandiswa sesimende dhaka thickener; muindasitiri yemishonga, inogona kushandiswa sechinhu chinobatsira chemishonga; muindasitiri yezvekudya, chinhu chakajairika chekuwedzera chikafu. Aya ndiwo akasarudzika emuviri zvimiro anoita kuti HPMC ive yakakosha inoshanda polymer zvinhu.
Nguva yekutumira: Feb-10-2025