Hydroxyethyl cellulose uye ethyl cellulose

Hydroxyethyl cellulose uye ethyl cellulose zvinhu zviviri zvakasiyana. Vane maitiro anotevera.

Hydroxyethyl cellulose

Senge isiri-ionic surfactant, kunze kwekukora, kumisa, kusunga, flotation, firimu-kuumba, kuparadzira, kuchengetedza mvura uye nekupa inodzivirira colloids, ine zvakare zvinotevera zvimiro:

1. HEC inonyungudika mumvura inopisa kana inotonhora, uye hairegi pakupisa kwepamusoro kana kuvira, kuitira kuti ive nemhando dzakasiyana-siyana dzekunyungudika uye viscosity maitiro, uye kwete-thermal gelation;

2. Iyo isiri-ionic pachayo inogona kugarisana nemamwe akawanda-anonyungudika emvura mapolymers, surfactants uye munyu, uye yakanakisa colloidal thickener ine high-concentration electrolyte solutions;

3. Kukwanisa kuchengetedza mvura kwakapetwa kaviri kupfuura yemethyl 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.

Ethyl cellulose

Iyo isiri-ionic cellulose ether isinganyungudike mumvura asi inonyungudika muorganic solvents. Iine maitiro anotevera:

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.