Ndezvipi zvikonzero zvinokanganisa kuchengetwa kwemvura ye cellulose ether?

Cellulose ethers, senge methyl cellulose (MC) uye hydroxyethyl cellulose (HEC), inowanzoshandiswa sevanochengetedza mvura mumidziyo yekuvaka senge simende-based mortars uye gypsum-based plasters. Kuchengetwa kwemvura kwe cellulose ethers kunogona kukanganiswa nezvinhu zvakasiyana:

1. Chemical Structure: Iyo kemikari chimiro che cellulose ether inokanganisa yavo yekuchengetedza mvura. Semuyenzaniso, hydroxyethyl cellulose (HEC) inowanzo ratidza kuchengetwa kwemvura kwakakwira zvichienzaniswa nemethyl cellulose (MC) nekuda kwekuvapo kwemapoka ehydroxyethyl, ayo anowedzera simba rekusunga mvura.
2. Molecular Weight: Yepamusoro mamorekuru uremu cellulose ethers anowanzo kuve ari nani ekuchengetedza mvura zvivakwa nekuti anoumba yakawedzera hydrogen bonding network nemamorekuru emvura. Nekuda kweizvozvo, macellulose ether ane huremu hwemamorekuru akakwirira kazhinji anochengeta mvura zvine huremu kupfuura aya ane huremu hwakaderera.
3. Chiyero: Huwandu hwe cellulose ether inowedzerwa kune dhaka kana plaster musanganiswa inokanganisa kuchengetwa kwemvura. Kuwedzera muyero we cellulose ether kunowanzo wedzera kuchengetwa kwemvura, kusvika pane imwe nzvimbo uko kumwe kuwedzera kungasanyanya kuvandudza kuchengetwa uye kunogona kukanganisa zvimwe zvinhu zvechinhu.
4. Particle Saizi uye Kugovera: Iyo particle size uye kugovera kwe cellulose ethers inogona kukanganisa dispersibility yavo uye kushanda kwavo mukuchengetedza mvura. Yakatsetseka pasi cellulose ethers ine maunifomu particle size distribution inowanzopararira zvakaenzana mumusanganiswa, zvichiita kuti mvura igare ichivandudzwa.
5. Tembiricha uye Humidity: Mamiriro ezvakatipoteredza, akadai setembiricha uye hunyoro, anogona kukanganisa hydration uye kuchengetwa kwemvura kwe cellulose ethers. Tembiricha yepamusoro inogona kukurumidzira iyo hydration process, zvichitungamira kukurumidza kunyudzwa kwemvura uye zvinogona kuderedza kuchengetwa kwemvura. Sezvineiwo, kuderera kwehunyoro mamiriro anogona kukurudzira kubuda uye kuderedza kuchengetwa kwemvura.
6. Cement Type uye Additives: Rudzi rwesimende uye zvimwe zvinowedzera zviripo mudhaka kana plaster musanganiswa zvinogona kudyidzana ne cellulose ethers uye zvinokanganisa maitiro ekuchengetedza mvura. Mamwe marudzi esimende kana zvinowedzerwa zvinogona kuwedzera kana kutadzisa kuchengetwa kwemvura zvichienderana nekuenderana kwavo kwekemikari uye kusangana ne cellulose ethers.
7. Kusanganisa Maitiro: Maitiro ekusanganisa, anosanganisira kusanganisa nguva, kukurumidza kusanganisa, uye kurongeka kwekuwedzera kwezvinhu, zvinogona kukanganisa kupararira uye hydration ye cellulose ethers mumusanganiswa. Maitiro akakodzera ekusanganisa akakosha kuti ave nechokwadi chekugovera yunifomu ye cellulose ether uye kusimudzira kuchengetedza kwemvura.
8. Kurapa Mamiriro: Mamiriro ekurapa, akadai sekurapa nguva uye tembiricha, anogona kukanganisa hydration uye kuchengetwa kwemvura kweselulosi ether mune yakarapwa zvinhu. Kurapa kwakakwana kunodiwa kubvumira cellulose ethers kuti inyatso hydrate uye inobatsira pakuchengetedza mvura kwenguva refu muchigadzirwa chakaoma.

Nekurangarira zvinhu izvi, nyanzvi dzekuvaka dzinogona kukwidziridza kushandiswa kweselulosi ethers senge inochengetedza mvura mudhaka nepurasita maumbirwo kuti vakwanise kuita zvinodiwa sekushanda, kunamatira, uye kusimba.