Kuvandudzwa kweRheological Thickener

Kuvandudzwa kwerheological thickeners kwave kuri chiitiko chakakosha munhoroondo yezvinhu zvesainzi uye engineering. Rheological thickeners zvinhu zvinogona kuwedzera viscosity uye/kana kudzora kuyerera kwezvinwiwa, kumiswa, uye emulsions.

Yekutanga rheological thickener yakawanikwa netsaona muzana remakore rechi19, apo musanganiswa wemvura neupfu wakasiiwa kuti umire kwenguva yakati, zvichiita kuti pave nechinhu chakakora, senge gel. Muvhenganiswa uyu wakazoonekwa kuti waive nyore kuturika kwezvimedu zveupfu mumvura, izvo zvaigona kushandiswa semukobvu mukushandisa kwakasiyana.

Mukutanga kwezana remakore rechi20, zvimwe zvinhu zvakawanwa kuti zvaikora, zvakadai semasitashi, mazamu, uye ivhu. Zvishandiso izvi zvaishandiswa se rheological thickeners mune dzakasiyana siyana dzekushandisa, kubva pachikafu uye zvekuzora kusvika kupendi uye yekuchera zvinwiwa.

Nekudaro, aya echisikigo makobvu aive neasingakwanisi, senge kushanduka kwekuita, sensitivity kune kugadzirisa mamiriro, uye inogona kuitika microbiological kusvibiswa. Izvi zvakakonzera kugadzirwa kwezvakagadzirwa rheological thickeners, senge cellulose ethers, acrylic polymers, uye polyurethanes.

Cellulose ethers, senge sodium carboxymethyl cellulose (CMC), methyl cellulose (MC), uye hydroxypropyl cellulose (HPC), yave imwe yeanonyanya kushandiswa rheological thickeners mumashandisirwo akasiyana-siyana, nekuda kwekusiyana kwawo, sekunyungudika kwemvura, pH kugadzikana, ionic simba rekunzwa, uye firimu-kugadzira kugona.

Kuvandudzwa kwemasynthetic rheological thickeners kwagonesa kuumbwa kwezvigadzirwa zvine mashandiro anoenderana, kugadzikana kwakagadziridzwa, uye kushanda kwakawedzera. Nekuwedzera kuri kuita kudiwa kwezvinhu zvepamusoro-soro, kuvandudzwa kweiyo rheological thickeners inotarisirwa kuenderera mberi, ichisundwa nekufambira mberi mune zvesainzi, chemistry, uye engineering.