Vanhu vazhinji havagone kutaurira musiyano pakati pehydroxyethyl cellulose uye ethyl cellulose. Hydroxyethyl cellulose uye ethyl cellulose zvinhu zviviri zvakasiyana. Vane maitiro anotevera.
1 Hydroxyethyl cellulose:
Senge isiri-ionic surfactant, kunze kwekukora, kumisa, kusunga, kutenderera, firimu-kuumba, kuparadzira, kuchengetedza mvura uye nekupa inodzivirira colloids, ine zvakare zvinotevera zvimiro:
1. HEC inonyungudika mumvura inopisa kana inotonhora, uye haipindi pakupisa kwepamusoro kana kuvira, ichiita kuti ive nehuwandu hwekunyungudika uye viscosity maitiro, uye kwete-thermal gelation;
2. Haisi-ionic uye inogona kugarisana nemamwe akawanda-anonyunguduka mapolymers, surfactants uye munyu, uye yakanakisa colloidal thickener ine high-concentration electrolyte solutions;
3. Kukwanisa kwekuchengetedza mvura kwakapetwa kaviri kune iyo methyl cellulose, uye ine zviri nani kuyerera kwemutemo.
4. Kuenzaniswa neyakazivikanwa methyl cellulose uye hydroxypropyl methyl cellulose, kukwanisa kuparadzira kweHEC ndiyo yakaipisisa, asi iyo inodzivirira colloid ine simba rakasimba.
2 Ethyl cellulose
Iyo isiri-ionic cellulose ether isinganyungudike mumvura asi inonyungudika muorganic solvents. Ine zvinotevera maitiro:
1. Haisi nyore kusvira.
2. Kugadzikana kwakanaka kwekushisa uye yakanakisa thermoplasticity.
3. Hapana kusvibiswa kuchiedza chezuva.
4. Kuchinja-chinja kwakanaka.
5. Zvakanaka dielectric properties.
6. Iyo ine yakanakisa alkali kushorwa uye isina kusimba asidi kusagadzikana.
7. Kuita kwakanaka kwekurwisa kuchembera.
8. Kuramba kwakanaka kumunyu, kutonhora uye kunwa unyoro.
9. Yakagadzikana kumakemikari, kuchengetedza kwenguva refu pasina kuora.
10. Inopindirana nemafuta akawanda uye kuwirirana kwakanaka nevose plasticizers.
11. Zviri nyore kuchinja ruvara pasi penzvimbo yakasimba yealkaline uye mamiriro ekupisa.
Nguva yekutumira: Nov-15-2022