Focus on Cellulose ethers

Indangagaciro Indangagaciro ya Gel Ubushyuhe - Hydroxypropyl Methyl Cellulose

1. Ubushyuhe bwa Gel (0.2% igisubizo) 50-90 ° C.

. Igisubizo cyamazi gifite ibikorwa byubuso, gukorera mu mucyo no gukora neza.

3. HPMC ifite umutungo wa gelasique. Igicuruzwa cyamazi yo mumazi arashyuha kugirango akore gel hanyuma agwe, hanyuma ashonga nyuma yo gukonja. Ubushyuhe bwa gelation bwibintu bitandukanye buratandukanye. Gukemura biratandukanye nubwiza. Hasi ya viscosity, niko gukomera. Ibisobanuro bitandukanye bya HPMC bifite itandukaniro runaka mumiterere yabyo, kandi iseswa rya HPMC mumazi ntabwo rihindurwa nagaciro ka pH.

4. Ingano y'ibice: igipimo cya 100 mesh kirenze 98.5%. Ubucucike bwinshi: 0.25-0.70g / (mubisanzwe hafi 0.4g /), uburemere bwihariye 1.26-1.31. Ubushyuhe bwo guhindura ibara: 180-200 ° C, ubushyuhe bwa karubone: 280-300 ° C. Agaciro metoxyl kangana kuva 19.0% kugeza 30.0%, naho hydroxypropyl agaciro kiva kuri 4% kugeza 12%. Ubushuhe (22 ° C, 2%) 5 ~ 200000mPa .s. Ubushyuhe bwa gel (0.2%) ni 50-90 ° C.

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Igihe cyo kohereza: Werurwe-22-2023
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