Mhedzisiro yeHPMC neCMC pane Kuita kweKongiri

Hydroxypropyl methylcellulose (HPMC) uye carboxymethyl cellulose (CMC) ese ese cellulose ethers anowanzo shandiswa sekuwedzera mune kongiri maumbirwo.Ivo vanoshandira zvinangwa zvakasiyana uye vanogona kuve nemhedzisiro yakakosha pakuita kwekongiri.Heano maitiro eHPMC neCMC pakuita kongiri:

1. Kuchengeta Mvura: Ose HPMC neCMC anoshanda ekuchengetedza mvura.Vanovandudza kushanda uye kuenderana kwekongiri nyowani nekunonoka kubuda kwemvura panguva yekumisa nekurapa.Uku kuchengetwa kwemvura kwenguva refu kunobatsira kuve nechokwadi che hydration yakakwana yemasimende, kukurudzira kwakaringana kusimba kwesimba uye kuderedza njodzi yekupwanya kwe shrinkage.
2. Kushanda: HPMC neCMC inoshanda sema rheology modifiers, inosimudzira kushanda uye kuyerera kwekongiri musanganiswa.Vanovandudza kubatana uye lubricity yemusanganiswa, zvichiita kuti zvive nyore kuisa, kusimbisa, uye kupedza.Izvi zvakavandudzwa zvekushanda zvinofambisa zvirinani kubatana uye zvinoderedza mukana wevoids kana uchi mukongiri wakaoma.
3. Adhesion: HPMC neCMC inonatsiridza kunamatira kwekongiri kune akasiyana ma substrates, anosanganisira aggregates, inosimbisa fiber, uye formwork nzvimbo.Ivo vanosimudzira chisungo chesimba pakati pecementitious zvinhu uye aggregates, kuderedza njodzi yeku delamination kana debonding.Uku kuwedzera kwekunamatira kunobatsira pakusimba kwese uye kurongeka kwekongiri.
4. Kupinza Kwemhepo: HPMC neCMC inogona kuita semhepo-inopinza vamiririri kana ichishandiswa mumisanganiswa yekongiri.Ivo vanobatsira kuunza mabhuru madiki emhepo mumusanganiswa, izvo zvinovandudza kutonhora-kunyungudika kuramba uye kusimba nekugamuchira shanduko yevhoriyamu inokonzerwa nekuchinja kwekushisa.Kupinda kwemhepo kwakakodzera kunogona kudzivirira kukanganisa kubva kumhepo yechando uye kukwira munzvimbo dzinotonhora.
5. Kuisa Nguva: HPMC neCMC inogona kukanganisa nguva yekumisikidza yekongiri musanganiswa.Nekunonotsa kuita kwe hydration ye simenti, vanogona kuwedzera nguva yekutanga uye yekupedzisira yekumisikidza, vachipa nguva yakawanda yekuisa, kubatanidzwa, uye kupedzisa.Nekudaro, kuwandisa dosage kana chaiwo maumbirwo anogona kutungamirira kunguva refu yekuseta, ichida kunyatsogadziriswa kuti isangane nezvinodiwa zveprojekiti.
6. Crack Resistance: HPMC neCMC inobatsira mukuputsika kwekongiri yakaomeswa nekusimudzira kubatana kwayo, ductility, uye kuoma.Vanobatsira kuderedza kuumbwa kwekuputsika kwe shrinkage uye kuderedza kupararira kwezvimedu zviripo, kunyanya munzvimbo dzakadzivirirwa kana dzepamusoro-soro.Izvi zvakagadziridzwa kupemha kuramba kunosimudzira kusimba kwenguva refu uye kuita kwekongiri zvimiro.
7. Kugarisana: HPMC neCMC inowirirana neyakasiyana siyana yekongiri admixtures uye ekuwedzera, inobvumira kune zvakasiyana-siyana ekugadzira sarudzo.Iwo anogona kushandiswa pamwe chete nezvimwe zvinosanganiswa senge superplasticizers, accelerators, retarders, uye zvekuwedzera simende zvinhu kuti zvizadzise zvibodzwa zvekuita uchichengetedza kuenderana uye kugadzikana.

HPMC neCMC vanoita mabasa akakosha mukusimudzira kushanda kwekongiri nekuvandudza kuchengetwa kwemvura, kushanda, kunamatira, kupindira kwemhepo, kuseta nguva, kuramba kuparara, uye kuenderana.Zvimiro zvavo zvakasiyana-siyana zvinovaita zvakakosha zvekuwedzera zvekugadzirisa kongiri musanganiswa uye kuwana inodiwa maitiro ekuita mumhando dzakasiyana dzekuvaka.