1. Zvinhu zve hydroxyethyl cellulose
Ichi chigadzirwa chichena kana chakareruka yero chisina kunhuhwirira uye nyore kuyerera hupfu, 40 mesh sefa chiyero ≥99%; kunyorovesa tembiricha: 135-140 ° C; kujeka kwehuwandu: 0.35-0.61g / ml; kuora kwekushisa: 205-210 ° C; kusvira speed Kunonoka; kuenzana tembiricha: 23°C; 6% pa50% rh, 29% pa84% rh.
Inonyungudika mumvura inotonhora uye mumvura inopisa, uye kazhinji inonyungudika mune yakawanda organic solvents. Iyo viscosity inoshanduka zvishoma muhuwandu hwePH kukosha 2-12, asi viscosity inoderera kupfuura iyi chiyero.
2. Zvinhu zvinokosha
Senge isiri-ionic surfactant,hydroxyethyl celluloseine zvinhu zvinotevera mukuwedzera kukora, kumisa, kusunga, kuyerera, kugadzira firimu, kuparadzira, kuchengetedza mvura uye kupa inodzivirira colloid:
1. HEC inonyungudika mumvura inopisa kana mvura inotonhora, uye hairegi pakupisa kwepamusoro kana kubikira, iyo inoita kuti ive nehuwandu hwekugadzirisa, viscosity maitiro uye kwete-thermal gelation.
2. Haisi-ionic uye inogona kugarisana nemamwe akawanda-anonyungudika emvura mapolymers, surfactants, uye munyu. Iyo yakanakisa colloidal thickener ye-high-concentration electrolyte mhinduro.
3. Kukwanisa kwekuchengetedza mvura kwakapetwa kaviri kune iyo methyl cellulose, uye ine zviri nani kuyerera kwemutemo.
4. Kana ichienzaniswa neyakazivikanwa methyl cellulose uye hydroxypropyl methyl cellulose, HEC ine yakaipisisa kuparadzira kugona, asi yakasimba kwazvo inodzivirira colloid kugona.
3. Kushandiswa kwehydroxyethyl cellulose
Inowanzo shandiswa semakobvu, anodzivirira, anonamira, stabilizers uye ekuwedzera emulsions, jellies, mafuta ekuzora, mafuta ekuzora, ekuchenesa maziso, suppositories uye mahwendefa, uye zvakare anoshandiswa se hydrophilic gels, skeleton zvinhu, Inogona kushandiswa kugadzira matrix- mhando inosimudzira-kuburitswa gadziriro, uye inogona zvakare kushandiswa seyakagadzika mukudya.
Nguva yekutumira: Zvita-27-2022