Mechanism yeCellulose Ethers muCement Mortar

Iyo meshini ye cellulose ethers mune simende dhaka inosanganisira kudyidzana kwakasiyana-siyana uye maitiro anobatsira pakuita kwese uye zvimiro zvedhaka. Heino mhedziso yemaitiro anobatanidzwa:

1. Kuchengetedzwa Kwemvura: Cellulose ethers ine hydrophilic mapoka anotora nyore uye anochengeta mvura mukati medhaka matrix. Uku kuchengetwa kwemvura kwenguva refu kunobatsira kuchengetedza dhaka kuti rishande kwenguva yakareba, kudzivirira kuoma nguva isati yakwana uye nekuona hydration yakafanana yesimende zvimedu.
2. Hydration Control: Cellulose ethers inogona kunonoka hydration yezvikamu zvesimende nekugadzira firimu rekudzivirira rakavapoteredza. Iyi yakanonoka hydration inowedzera nguva yakavhurika yedhaka, ichibvumira nguva yakakwana yekushandisa, kugadzirisa, uye kupedza.
3. Yakavandudzwa Kupararira: Cellulose ethers inoshanda sevanoparadzira, vachikurudzira kupararira kweyunifomu yezvikamu zvesimende mumusanganiswa wedhaka. Izvi zvinowedzera homogeneity uye kuenderana kwedhaka, zvichikonzera kushanda kuri nani uye kuita.
4. Enhanced Adhesion: Cellulose ethers inovandudza kusungirirwa kwesamende dhaka kune substrate nzvimbo nekugadzira chisungo chakabatana pakati pevhu revhu uye substrate. Izvi zvinobatsira kudzivirira kutadza kwebhondi uye inovimbisa kunamatira kwakavimbika, kunyangwe pasi pemamiriro ezvinhu akaoma.
5. Kukora uye Kusunga: Cellulose ethers inoshanda semakobvu uye mabhandi mudhaka resimende, ichiwedzera viscosity yayo uye kubatana. Izvi zvinopa kuita zvirinani uye zvinoderedza njodzi yekudonha kana kudonha panguva yekunyorera, kunyanya mukumisikidzwa kwakatwasuka uye pamusoro.
6. Crack Prevention: Nekuvandudza kubatana uye kuchinjika kwedhaka, cellulose ethers inobatsira kugovera kushushikana zvakaenzana mukati me matrix, kuderedza mukana wekuputsika uye kuremara kwepasi. Izvi zvinowedzera kusimba kwese uye kushanda kwedhaka.
7. Kupinda Kwemhepo: Cellulose ethers inogona kufambisa kudzorwa kwemhepo mudhaka resimende, zvichiita kuti kuve nekunatsiridza kunyungudika kwechando, kuderedzwa kwemvura, uye kusimba kwakasimba. Iwo akavharirwa mabhubhu emhepo anoita sechivharo kupesana nekuchinja kwemukati, kudzikisa njodzi yekukuvadzwa nekuda kwechando-inonyungudika kutenderera.
8. Kugarisana neZviwedzerwa: Cellulose ethers inopindirana nehuwandu hwakawanda hwezvinowedzera zvinowanzo shandiswa mukugadzirwa kwesamende dhaka, senge mineral fillers, plasticizers, uye air-entraining agents. Iwo anogona kuiswa nyore nyore mumasanganiswa edhaka kuti awane chaiwo maitiro ekuita pasina kukanganisa zvimwe zvivakwa.

nzira dze cellulose ethers mu simenti dhaka dzinosanganisira kusanganiswa kwekuchengetedza mvura, hydration control, kuvandudzwa kupararira, kuwedzera kwekunamatira, kuwedzera uye kusunga, kudzivirira kuputika, kupindira kwemhepo, uye kuenderana nekuwedzera. Matanho aya anoshanda synergistically kuwedzera kushanda, kuita, uye kusimba kwesamende dhaka mumashandisirwo akasiyana ekuvaka.