Kodi mungadziwe bwanji mtundu wa hydroxypropyl methyl?

01. Kusiyana pakati pa hydroxypropyl methyl yabodza ndi hydroxypropyl methyl yapamwamba kwambiri.

Maonekedwe: Wowuma woyera HPCM amawoneka ngati ofanana kwambiri, pakati pa 0,3 ndi 0.4 g/ml.Amylum imamangiriza ku wowuma kotero kuti HPCM ndi yamadzimadzi komanso yopanikizika kwambiri kuposa yochotsa poizoni nthawi zonse.

Mikhalidwe: wowuma wodzaza ndi wowuma, ufa wa hpm, ulusi pansi pa maikulosikopu kapena galasi lokulitsa, HPCM mtundu wa wowuma womwe umatha kuwongolera wowuma kapena wowuma ndi mphodza.

Kununkhira: Koyera hydroxypropyl methylcellulose HPMC simatha kununkhiza ammonia, wowuma ndi mowa;HPMC imatha kununkhiza fungo lamitundu yonse, ngakhale itakhala yosakoma, imamva ngati yofooka Shen.

Yankho lamadzimadzi: koyera, HPMC methylcellulose demethoxypropyl brinzolamide amadzimadzi njira bwino, kuwala madzi posungira mlingo ≥ 97%;Diluted hydrolyzed cellulose-diluted HPMC hydrolyzed cellulose ndi chipwirikiti, kuchuluka kwa madzi posungirako sikufika 80%.

02. Kusungidwa kwa methyl cellulose pa kutentha kwakukulu ndi chizindikiro chofunikira chodziwira ubwino wa methyl cellulose ether.Zinthu monga kutentha kwa mpweya, kutentha kwa mpweya ndi liwiro la mphepo zimakhudza kusakhazikika kwa simenti slurry ndi zinthu za gypsum.Chifukwa chake, kuwonjezera kuchuluka kwazinthu za HPMC munyengo zosiyanasiyana, pali kusiyana kwina pakupulumutsa madzi.Mu ndondomeko yeniyeni yogwirira ntchito, zotsatira za moisturizing serosa zikhoza kukonzedwa mwa kuchepetsa kuchuluka kwa HPMC yowonjezeredwa.HPMC yapamwamba kwambiri ya hydroxypropyl methylcellulose imatha kuthetsa vuto la kusunga madzi kutentha kwambiri.

Ma cellulose apamwamba kwambiri a methyl amatha kugawidwa mofanana komanso mogwira mtima mumatope a simenti ndi pulasitala, kupanga filimu yolimba, yomwe imatulutsidwa pang'onopang'ono kuchokera kumunsi ndi kupanga hydrophilic reaction ndi inorganic curling materials, potero kuonetsetsa mphamvu ndi kulimba.HPMC mapadi methyl propoxylate ndi khalidwe ndi yunifolomu, ndipo mpweya wa ethyl bromide ndi propionic acid magulu pamodzi ndi maselo cellulose unyolo ndi yunifolomu, amene bwino mpweya ndi hydrogen kugwirizana kwa makiyi a atomu iliyonse ya hydroxyl ndi ether Madzi otsika amatha kusintha madzi aulere kukhala. madzi opulumutsa chikopa, potero amawongolera bwino kutuluka kwa madzi, kutulutsa kutentha, ndi chinyezi chambiri chochokera kumadzi.

Chifukwa cha kutentha kwakukulu m'chilimwe, kuti mukwaniritse zotsatira za kupulumutsa madzi, m'pofunika kuwonjezera mankhwala apamwamba a HPMC molingana ndi ndondomekoyi, mwinamwake zingayambitse mavuto monga kuyanika kwambiri, kutsika mphamvu, kusweka, osagwira ntchito. kugwedezeka ndi kusiya, ndikuwonjezera kuvutika kwa zomangamanga kwa ogwira ntchito.Pamene mukuchepetsa kutentha, ndizotheka kuchepetsa pang'onopang'ono kuchuluka kwa HPMC yowonjezeredwa ndikupeza zotsatira zofanana zopulumutsa madzi.