Hydroxyethyl cellulose igiredhi repakati kusvika kune yakakwira viscosity giredhi ye cellulose ether, inoshandiswa seyakakora uye stabilizer yemvura-based coatings, kunyanya kana yekuchengetera viscosity yakakwira uye application viscosity yakaderera. Cellulose ether iri nyore kuparadzira mumvura inotonhora ine pH kukosha ≤ 7, asi zviri nyore kuunganidza mualkaline mvura ine pH kukosha ≥ 7.5, saka tinofanira kubhadhara kune dispersibility ye cellulose ether.
Zvimiro uye kushandiswa kwehydroxyethyl cellulose:
1. Anti-enzyme isiri-ionic mvura thickener, iyo inogona kushandiswa muhuwandu hwepH kukosha (PH = 2-12).
2. Zviri nyore kuparadzira, inogona kuwedzerwa zvakananga nenzira yehupfu yakaoma kana nenzira ye slurry paunenge uchikuya pigments uye fillers.
3. Kuvaka kwakanakisa. Iyo ine mabhenefiti ekuchengetedza basa, haisi nyore kudonha nekurembera, uye yakanaka splash kuramba.
4. Kugarisana kwakanaka neyakasiyana-siyana surfactants uye preservatives anoshandiswa mu latex pendi.
5. Iyo viscosity yekuchengetedza yakagadzikana, iyo inogona kudzivirira viscosity yepende ye latex kubva pakuderera nekuda kwekuparara kwema enzymes mune general hydroxyethyl cellulose.
Zvimiro zveHydroxyethyl Cellulose
Hydroxyethyl cellulose ether isiri-ionic mvura-inonyungudika polima. Ihupfu chena kana kuti chiedza yeyero inoyerera nyore. Kazhinji isinganyungudika mune zvakawanda organic solvents
1. HEC inonyungudika mumvura inopisa kana mvura inotonhora, uye hairegi pakupisa kwepamusoro kana kubikira, iyo inoita kuti ive nehuwandu hwekunyungudika uye viscosity maitiro, uye kwete-thermal gelation.
2. Haisi-ionic uye inogona kugarisana nemamwe mapolima anonyungudika nemvura, ma surfactants, uye munyu. Iyo yakanakisa colloidal thickener yemhinduro dzine high-concentration electrolytes.
3. Kuchengetedza kwemvura kunowedzera zvakapetwa kaviri kune methyl cellulose, uye ine zviri nani kuyerera.
4. Kuenzaniswa neyakazivikanwa methyl cellulose uye hydroxypropyl methyl cellulose, kukwanisa kuparadzira kweHEC ndiyo yakaipisisa, asi iyo inodzivirira colloid simba ndiyo yakasimba (yemavara).
Kukora
Kukanganisa kushanda, senge: coatability, splash kuramba, kurasikirwa kuramba; iyo yakakosha network chimiro che cellulose ether inogona kudzikamisa hupfu muhuputi system, inonoke kugadzikana kwayo, uye kuita kuti sisitimu iwane zvirinani kuchengetedza mhedzisiro.
Kuramba kwakanaka kwemvura
Mushure mokunge firimu yepende yakaoma zvachose, ine yakanakisa kudzivirira kwemvura. Izvi zvinonyanya kuratidza kukosha kwekudzivirira kwayo kwemvura mune yakakwirira-PVC yekugadzira system. Kubva kune dzimwe nyika kusvika kuChinese maitiro, mune iyi yepamusoro-PVC system, huwandu hweselulosi ether yakawedzerwa ndeye 4-6 ‰.
kuchengetedza mvura zvakanaka
Hydroxyethyl cellulose inogona kurebesa nguva yekuratidzwa uye kudzora nguva yekuomeswa kuti iwane zvirinani kuumbwa kwemafirimu; pakati pavo, kuchengetwa kwemvura ye methyl cellulose uye hypromellose inodonha zvakanyanya pamusoro pe40 ° C, uye zvimwe zvidzidzo zvekunze zvinotenda kuti zvinogona kuderedzwa ne50% , mukana wezvinetso muzhizha uye kupisa kwakanyanya kunowedzera.
Kugadzikana kwakanaka kuderedza flocculation yepende
Bvisa sedimentation, syneresis uye flocculation; Zvichakadaro, hydroxyethyl cellulose ether isiri-ionic mhando yechigadzirwa. Haaite neakasiyana ekuwedzera muhurongwa.
Kuenderana kwakanaka neakawanda-mavara system
Yakanakisa kuenderana kwemavara, pigments uye mafirita; hydroxyethyl cellulose ether ine yakanakisa kukura kwemavara, asi mushure mekugadziriswa, senge methyl uye ethyl, pachava nenjodzi dzakavanzika dzekuenderana kwepigment.
Kuenderana kwakanaka nezvinhu zvakasiyana-siyana
Inogona kushandiswa mune dzakasiyana-siyana coating formulation masisitimu.
High antimicrobial basa
Inokodzera silicate masisitimu
Nguva yekutumira: Feb-02-2023