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Hydroxypropyl Methyl Cellulose (HPMC), sechinhu chikuru chekuwedzera mukuvaka yakaoma yakasanganiswa dhaka zvigadzirwa, inoita basa rakakosha mukuita uye mutengo weiyo yakaoma yakasanganiswa dhaka.

HPMC (1)

Parizvino, zvigadzirwa zvepasi rose cellulose ether zvinonyanya kushandiswa mukatizvokuvakisa.Iyo yakakosha pfuma ye cellulose ether ndeye yayokuchengetedza mvura in zvokuvakisa.

Kana cellulose ether ikasawedzerwa, iyo yakatetepa yedhaka yakasanganiswa inokurumidza kuoma, zvichiita kuti simende isakwanise kunyorova nenzira yakajairika, zvichiita kuti dhaka rirege kuoma uye kuwana yakanaka.bonding simba.Panguva imwecheteyo, kuwedzera kwe cellulose ether kunoita kuti dhaka rive nepurasitiki yakanaka uye kuchinjika, kunatsiridza.bonding simbayedhaka.

1. Saizi yechikamu cheHPMC

Iko kunaka kwe cellulose ether kunokanganisa kunyungudika kwayo.Iyo yakanakisa cellulose ether ndeye, iyo inokurumidza kunyungudika mumvura, uyekuchengetedza mvurakushanda kuchavandudzwawo.Naizvozvo, particle size ye cellulose ether inofanira kuiswa mune imwe yezvivakwa zvayo.Kazhinji kutaura, kunaka kwe cellulose ether i80 mesh mukati mese.

2. Dry uremu kurasikirwa mwero weHPMC

Kuomeswa kwehuremu huremu, kunoreva chikamu chakarasika uremu muyekutanga sampuli uremu, pakuomesa mune imwe tembiricha.Kunyanya kuomeswa kwehuremu hwehuremu mune imwe mhando cellulose ether kunoderedza zviri muzvikamu zvinoshanda mu cellulose ether, kukanganisa mashandisirwo emabhizinesi epasi, uye zvakare kuwedzera mutengo wekutenga.Kazhinji kuomesa uremu chiyero che cellulose ether haisi kupfuura 5.0%.

3. Sulfate ash yeHPMC

Yakawandisa madota emukati mune imwe mhando ye cellulose ether inoderedza zviri mukati meiyo inoshanda zvikamu mu cellulose ether uye inokanganisa mashandisiro ekushandiswa kwemabhizinesi ari pasi.Sulfate ash ye cellulose ether chiratidzo chakakosha chekuita kwayo.

4. Viscosity yeHPMC

Thekuchengetedza mvurauye kukora mhedzisiro ye HPMCzvakanyanya zvinoenderana ne viscosity uye dosi ye cellulose ether mukatisimende-based Mortar.

water retention

5. pH Kukosha kweHPMC

HPMCpane tembiricha yepamusoro kana kuchengetedza mushure menguva refu yenguva, viscosity yakadzikira zvishoma nezvishoma, yakakwira viscosity chigadzirwa kuita kunonyanya kuoneka, saka zvinodikanwa kudzikamisa pH kukosha.Kazhinji, pH yemhando ye cellulose ether inofanirwa kudzorwa mukati me5 kusvika 9.

6. Transmittance ofHPMC

Transmittance yeHPMC inokanganisa zvakananga kushanda kwayo mukatizvokuvakisa.Zvinhu zvikuru zvinokanganisa kufambiswa kwechiedza che cellulose ether ndeaya anotevera:

(1) Hunhu hwezvakagadzirwa;

(2) Mhedzisiro ye alkalinization;

(3) Chikamu cheunyanzvi;

(4) Solvent ratio;

(5) Neutralization maitiro.

Zvinoenderana nemaitiro ekushandisa, kufambiswa kwe cellulose ether hakufanirwe kunge kuri pasi pe80%.

water retention 1

7. Gel tembiricha yeHPMC

HPMC munesimende-based Mortarinonyanya kushandiswa se thickener, plasticizer, uye mvura inochengetedza mumiririri, saka viscosity uye tembiricha yegel chiratidzo chakakosha cheHPMC.Gel tembiricha inoshandiswa kuona rudzi rwe cellulose ether, iyo inoenderana nedhigirii rekutsiva cellulose ether.

Mukuwedzera, munyu uye tsvina zvinogonawo kukanganisa gel tembiricha.Kana tembiricha yemushonga yakwira, cellulose polymer zvishoma nezvishoma inorasa mvura, viscosity yemushonga inodzikira, uye kana yasvika panzvimbo yegel, iyo polima inoshaya mvura zvachose kuita gel.Naizvozvo, tembiricha yesimende-based Mortarinowanzodzorwa pazasi pekutanga tembiricha yegel.Pasi pemamiriro ezvinhu aya, tembiricha yakaderera, iyo yakakwirira viscosity, uye zvakanyanya kuoneka viscosity uyekuchengetedza mvuramhedzisiro ndiyo.

HPMC

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Nguva yekutumira: Feb-14-2022