Zvigadzirwa zve cellulose zvakatorwa kubva kune yakasikwa donje pulp kana huni pulp ne etherification.Zvigadzirwa zvakasiyana zve cellulose zvinoshandisa akasiyana etherifying agents.Hypromellose HPMC inoshandisa mamwe marudzi eetherifying agents (chloroform uye 1,2-epoxypropane) , nepo hydroxyethyl cellulose HEC inoshandisa Oxirane etherifying agents.Hydroxyethyl cellulose inogona kushandiswa seyakakora mupende chaiyo yematombo uye latex pendi.Nekuda kwehuwandu hwayo hukuru hweaggregate, chaiyo giravhiti, kunaya kwemvura, inoda kuwedzera thickening agent kuti iwedzere viscosity yayo, kuitira kuti isangane nezvinodiwa zvekuvaka pfapfaidzo viscosity, nekuvandudza kwayo kugadzikana, uye kuwana rimwe simba.Kuti uwane simba rakanaka, kumira zvakanaka kwemvura uye kusagadzikana kwemamiriro ekunze, kusarudzwa kwezvinhu zvakasvibirira uye kugadzirwa kwekugadzira kunokosha zvikuru.
Kazhinji, chiyero chepamusoro-chaiyo dombo pende emulsion ichave yakakwirira.Semuenzaniso, tani yepende chaiyo yematombo inogona kunge iine 300 kg ye pure acrylic emulsion uye 650 kg yejecha rematombo echisikigo.Kana iyo yakasimba ye emulsion iri 50% , huwandu hwe 300 kg emulsion mushure mekuoma inenge 150 malita, 650 Kg yejecha inenge 228 malita.Izvi zvinoreva kuti, panguva ino PVC (pigment volume concentration) yepende chaiyo yematombo ndeye 60% , nokuti zvikamu zvejecha rine ruvara zvakakura uye zvisingaenzaniswi muchimiro, pasi pemamiriro ekugoverwa kwekukura kwechikamu, mushure mekuoma. iyo chaiyo pende pendi inogona kunge iri muCPVC (yakakosha pigment volume concentration) pamusoro.Kune thickener, kana viscosity yakakodzera ye cellulose yakasarudzwa, firimu rinenge rakazara uye gobvu rinogona kuumbwa kuti rizadzise matatu makuru ekuita zvinodiwa zvependi yedombo chaiyo.Kana zvinyorwa zve emulsion zvakaderera, zvinokurudzirwa kushandisa viscosity yakakwirira ye cellulose sehutsi (eg 100,000 viscosity) , kunyanya mushure mokunge mutengo we cellulose unowedzera, unogona kuderedza kuwanda kweselulosi inoshandiswa, inogonawo kurega kushanda. yependi yematombo chaiyo yakanyanya kunaka.Vamwe vagadziri vependi yematombo chaiwo emutengo wakaderera vakatsiva hydroxyethyl cellulose nehypromellose nekuda kwemutengo uye zvimwe zvinofungwa.Kana ichienzaniswa nemhando mbiri dze cellulose, hydroxyethyl cellulose ine simba rekubata mvura iri nani, hairasikirwe nekugona kubata mvura nekuda kwejeli pakupisa kwepamusoro, uye ine kumwe kupikisa ukuru.Nekuda kwekuita, zvinokurudzirwa kushandisa 100,000 viscosity hydroxyethyl cellulose seyakakora yepende chaiyo yedombo.
Nguva yekutumira: Jul-24-2023