Hydroxyethyl cellulose uye ethyl cellulose

Hydroxyethyl cellulose ne ethyl cellulose zvinhu zviviri zvakasiyana. Zvine hunhu hunotevera.

Hydroxyethyl cellulose

Sechinhu chinodzivirira mvura chisiri cheionic, pamusoro pekukora, kumisa, kusunga, kutenderera, kugadzira firimu, kuparadzira, kuchengetedza mvura uye kupa macolloid anodzivirira, inewo zvinhu zvinotevera:

1. HEC inonyungudika mumvura inopisa kana inotonhora, uye hainyungudike kana yapisa zvakanyanya kana kufashaira, zvekuti ine hunhu hwakasiyana-siyana hwekunyungudika uye hunhu hwekusviba, uye gelation isingapisi;

2. Iyo isiri ionic pachayo inogona kushanda pamwe chete nemamwe mapolymer anonyungudika mumvura, masurfactants nemunyu, uye ichinhu chinogodza colloidal chakanakisa chine mhinduro dze electrolyte dzakanyanya kuwanda;

3. Kugona kuchengetedza mvura kwakapetwa kaviri pane kwemethyl cellulose, uye ine kurongeka kuri nani kwekuyerera kwemvura;

4. Zvichienzaniswa ne methyl cellulose inozivikanwa uye hydroxypropyl methyl cellulose, kugona kweHEC kuparadzira ndiko kwakaipisisa, asi colloid inodzivirira ine kugona kwakasimba.

Ethyl cellulose

I non-ionic cellulose ether isinganyungudike mumvura asi inonyungudika mu organic solvents. Ine hunhu hunotevera:

1. Hazvisi nyore kutsva.

2. Kugadzikana kwakanaka kwekupisa uye thermoplasticity yakanaka kwazvo.

3. Hapana ruvara runobva muchiedza chezuva.

4. Kuchinjika kwakanaka.

5. Hunhu hwakanaka hwe dielectric.

6. Ine simba guru rekudzivirira alkali uye simba rekudzivirira acid.

7. Kushanda zvakanaka kwekudzivirira kukwegura.

8. Kudzivirira munyu, kutonhora uye hunyoro zvakanaka.

9. Yakagadzikana nemishonga, inochengetwa kwenguva refu isina kuora.

10. Inoenderana nemaresini akawanda uye inoenderana zvakanaka nemapurasitiki ese.

11. Zviri nyore kuchinja ruvara kana paine zvakatipoteredza zvine alkaline yakawanda uye mamiriro ekupisa.