Maitiro ekuwedzera Hydroxyethyl Cellulose kune Coatings?

Hydroxyethyl cellulose (HEC) yakajairika thickener uye rheology modifier iyo inoshandiswa mumhando dzakasiyana-siyana dzekugadzira maumbirwo, kusanganisira pendi, zvinonamira, uye sealants.Paunenge uchiwedzera HEC kune majasi, zvakakosha kutevera matanho mashomanana anokosha kuti uone kuti inoparadzirwa uye inonyoroveswa zvakanaka.Heano matanho akajairwa ekuwedzera HEC kune machira:

1. Gadzirira HEC kupararira HEC inowanzo kupiwa sehupfu hwakaoma hunofanira kuparadzirwa mumvura isati yawedzerwa kumucheka.Kuti ugadzirire kupararira kweHEC, wedzera huwandu hunodiwa hweHEC hupfu kumvura uchikurudzira nguva dzose.Iyo yakakurudzirwa kusangana kweHEC mukupararira kunoenderana neiyo chaiyo application uye inodiwa viscosity yekupfeka.
2. Sakanidza kupararira kweHEC nemucheka Kana HEC kupararira kwakazara nemvura uye HEC zvimedu zvakazara zvakapararira, zvishoma nezvishoma uwedzere kumucheka paunenge uchisanganiswa uchienderera mberi.Zvakakosha kuwedzera kupararira kweHEC zvishoma nezvishoma kudzivirira kukoromoka uye kuve nechokwadi kuti yakagoverwa zvakaenzana mukati mekuputira.Iko kumhanya kwekusanganiswa kunofanira kuchengetwa pachiyero chepakati kudzivirira kupindira kwemhepo yakawandisa.
3. Gadzirisa pH yekuputira HEC inonzwira pH uye inoshanda zvakanyanya pahupamhi hwe6-8.Nokudaro, zvakakosha kugadzirisa pH yekuputira kune iyi mutsara usati wawedzera kupararira kweHEC.Izvi zvinogona kuitwa nekuwedzera zvidiki zvepH inogadzirisa mumiriri, senge ammonia kana sodium hydroxide, kune yekupfeka uchitarisa pH.
4. Bvumira jira kuti rizorore uye rikure Mushure mekuwedzera kupararira kweHEC kumucheka, zvinokurudzirwa kubvumira musanganiswa kuti ugare kwemaminitsi makumi matatu kuitira kuti HEC iwane mvura yakakwana uye iwedzere kuvhara.Zvakakosha kumutsa musanganiswa nguva nenguva panguva ino kudzivirira kugadzirisa uye kuvimbisa kuti HEC inoparadzirwa zvakaenzana.Iko kupfekedza kunofanirwawo kubvumidzwa kukura kweinenge maawa makumi maviri nemana isati yashandiswa kuve nechokwadi chekuti HEC yakanyatso kukora.

Kakawanda, kuwedzera HEC kune zvipfeko kunosanganisira kugadzirira kupararira kweHEC, zvishoma nezvishoma kuwedzera kune chifukidzo paunenge uchisanganiswa uchienderera mberi, kugadzirisa pH yekuputira, uye kubvumira musanganiswa kuzorora uye kukura usati washandiswa.Kutevera matanho aya kunogona kubatsira kuve nechokwadi chekuti HEC yakapararira zvakakwana uye yakanyoroveswa, zvichikonzera kupfekedzwa kwakasimba kweiyo inodiwa rheological properties.