HPMC (Hydroxypropyl Methyl Cellulose) yog ntau yam thiab muaj txiaj ntsig zoo tshuaj siv nyob rau hauv ntau yam kev lag luam nrog rau kev tsim kho, tshuaj, khoom noj khoom haus thiab khoom noj khoom haus. Nws yog ib qho tseem ceeb ntawm ntau yam khoom thiab muaj ntau yam kev siv.
Ib qho ntawm cov laj thawj tseem ceeb ntawm HPMC yog qhov nrov heev yog nws muaj ntau yam. Nws tuaj yeem siv ua thickener, emulsifier, binder, stabilizer thiab film-forming agent, thiab lwm yam.
Hauv kev tsim kho kev lag luam, HPMC feem ntau yog siv los ua cov thickener rau cov khoom siv cement. Nws pab txhim kho kev ua haujlwm ntawm cov mortar, ua kom yooj yim rau kev tuav thiab tsim kho. Nws kuj tseem pab txhim kho qhov adhesion ntawm mortar kom nws adheres zoo dua rau saum npoo nws tau pleev xim rau.
Hauv kev lag luam kws tshuaj, HPMC yog siv los tsim cov tshuaj ntsiav thiab ntsiav tshuaj. Nws pab tsim cov khoom ruaj khov thiab zoo ib yam, ua kom yooj yim rau kev ntsuas thiab koob tshuaj kom raug. Nws kuj tseem pab tiv thaiv cov khoom xyaw nquag hauv cov tshuaj los ntawm kev puas tsuaj los ntawm plab acid.
Hauv kev lag luam khoom noj khoom haus, HPMC yog siv los ua cov thickener, emulsifier thiab stabilizer. Nws yog feem ntau siv rau hauv cov khoom siv mis nyuj, ci khoom noj thiab cov kua ntses. Nws pab tsim ib tug du, creamy kev ntxhib los mos thiab txhim kho tag nrho cov khoom zoo.
Hauv kev lag luam tu tus kheej, HPMC tau siv ntau yam khoom xws li tshuaj zawv plaub hau, tshuaj pleev thiab tshuaj pleev. Nws pab tsim kom muaj kev ntxhib los mos thiab zoo nkauj, ua rau cov khoom zoo nkauj dua thiab txaus siab rau kev siv. Nws kuj pab txhim kho qhov ruaj khov thiab sib xws ntawm cov khoom, xyuas kom nws tsis sib cais los yog ua clumpy thaum lub sij hawm.
Ib qho txiaj ntsig tseem ceeb ntawm kev siv HPMC yog tias nws yog cov tshuaj muaj kev nyab xeeb thiab tsis muaj tshuaj lom. Nws tseem yog biodegradable, txhais tau tias nws tawg thaum lub sijhawm thiab yuav tsis ua mob rau ib puag ncig. Qhov no ua rau nws zoo tagnrho rau ntau yam khoom siv.
Hauv kev xaus, HPMC yog ntau yam tshuaj thiab ntau yam tshuaj nrog ntau yam kev siv hauv ntau qhov kev lag luam sib txawv. Nws lub peev xwm los ua cov thickener, emulsifier, binder, stabilizer, thiab zaj duab xis qub ua rau nws muaj ntau yam tshuaj uas siv tau rau ntau yam khoom. Nws txoj kev nyab xeeb thiab tsis muaj tshuaj lom ua rau nws zoo tagnrho rau ntau daim ntawv thov sib txawv, thiab nws cov biodegradability kom ntseeg tau tias nws tsis ua mob rau ib puag ncig.
Post lub sij hawm: Lub Xya hli ntuj-11-2023