Iipropati zeHydroxypropyl methylcellulose HPMC

I-cellulose ethers esetyenziswa ngokuqhelekileyo ibandakanya i-HEC, i-HPMC, i-CMC, i-PAC, i-MHEC kunye nokunye okunjalo. I-ether ye-cellulose e-non-ionic yamanzi e-soluble ether ine-adhesiveness, i-dispersion stability kunye namandla okugcina amanzi, kwaye iyongezwa ngokuqhelekileyo isetyenziselwa izinto zokwakha. I-HPMC, i-MC okanye i-EHEC isetyenziswa kwizakhiwo ezininzi ezisekwe kwisamente okanye kwigypsum, njengodaka lwesamente, udaka lwesamente, udaka lwesamente, igypsum, umxube wesamente, kunye ne-milky putty, njl. njl., enokuphucula ukusasazeka kwesamente okanye isanti. kunye nokuphucula kakhulu i-Adhesion, ebaluleke kakhulu kwi-plaster, i-tile samente kunye ne-putty. I-HEC isetyenziselwa i-samente, kungekhona nje njenge-retarder, kodwa kunye ne-arhente yokugcina amanzi. I-HEHPC inaso esi sicelo.

Iimveliso zeHydroxypropyl methylcellulose zeHPMC zidibanisa iipropathi ezininzi zomzimba kunye neekhemikhali kwiimveliso ezizodwa ezinosetyenziso kunye neempawu ezahlukeneyo:

Ukugcinwa kwamanzi: Inokugcina amanzi kwindawo enemingxuma efana neebhodi zesamente zodonga kunye nezitena.

Ukwenza ifilim: Inokwenza ifilim ecacileyo, eyomeleleyo kunye nethambileyo enokumelana negrisi okugqwesileyo.

Ukunyibilika kwe-Organic: Imveliso iyanyibilika kwezinye izinyibilikisi ze-organic, ezifana nemilinganiselo efanelekileyo ye-ethanol/amanzi, ipropanol/amanzi, i-dichloroethane kunye nenkqubo yokunyibilikisa eyenziwe zizinyibilikisi ezimbini eziphilayo.

I-Thermal Gelation: Xa isisombululo se-aqueous semveliso sishushu, i-gel iya kwenza, kwaye i-gel eyenziweyo iya kubuya ibe yisisombululo xa ipholile.

Umsebenzi womphezulu: Ubonelela ngomsebenzi ongaphezulu kwisisombululo sokufezekisa i-emulsification efunekayo kunye ne-colloids yokukhusela, kunye nokuzinza kwesigaba.

Ukumiswa: I-Hydroxypropyl methylcellulose ikhusela amasuntswana aqinileyo ekuzinziseni, ngaloo ndlela inqanda ukubunjwa kwentlenga.

I-Colloids ekhuselayo: Thintela amathontsi kunye namasuntswana ekudibaneni okanye ajiye.

I-Soluble Water : Imveliso inokuchithwa emanzini ngobuninzi obuhlukeneyo, ukuxinwa okuphezulu kunqunyelwe kuphela yi-viscosity.

I-inertness engeyiyo i-ionic: Imveliso i-ether ye-cellulose engekho i-ionic engadibanisi neetyuwa zetsimbi okanye ezinye ii-ion ukuze zenze i-insoluble precipitates.

Ukuzinza kwe-Acid-base: ilungele ukusetyenziswa kuluhlu lwe-PH3.0-11.0.