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Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl methyl cellulose, ua kom yooj yim rau propyl methyl cellulose (HPMC hydroxypropylmethylcellulose, abbreviation), nws yog mus rau ntau yam sib xyaw uas tsis yog-ionic cellulose ether. Nws yog semi-synthetic, inactive, viscoelastic polymer feem ntau siv nyob rau hauv ophthalmology ua ib tug lubricant, los yog raws li ib tug excipient los yog excipient nyob rau hauv lub qhov ncauj tshuaj, feem ntau pom nyob rau hauv ntau yam khoom. Hydroxypropyl cellulose tuaj yeem siv los ua khoom noj khoom haus, emulsifier, thickener, raug tshem tawm tus neeg sawv cev thiab tsiaj gelatin hloov.
Yam khoom SPECIFICATIONS Qhov tshwm sim Dawb hmoov Decomposition kub 200 min Discoloration kub 190-200 ℃ viscosity 400 Tus nqi PH 5 ~ 8 Qhov ntom 1.39g / cm3 Carbonization kub 280-300 ℃ Hom Qib zaub mov Cov ntsiab lus 99% Ntog nro 42-56dyne / cm rau 2% aqueous tov -
Silicone Defoamer
Lub defoamer rau papermaking tuaj yeem muab ntxiv tom qab ua npuas dej yog tsim los yog ntxiv ua npuas ncauj inhibitor rau cov khoom. Raws li kev siv sib txawv, qhov sib ntxiv ntawm cov defoamer tuaj yeem yog 10 ~ 1000ppm. Feem ntau, kev noj cov ntawv ib tuj dej dawb hauv papermaking yog 150 ~ 300g, qhov zoo tshaj qhov ntxiv yog txiav txim siab los ntawm cov neeg siv khoom raws li cov xwm txheej tshwj xeeb. Daim ntawv defoamer tuaj yeem siv ncaj qha lossis tom qab diluted. Yog hais tias nws muaj peev xwm ua tau tag nrho stirred thiab dispersed nyob rau hauv lub foaming system, nws muaj peev xwm muab ntxiv ncaj qha yam tsis muaj dilution. Yog tias koj xav tau dilute, thov nug rau txoj kev dilution ncaj qha los ntawm peb lub tuam txhab. Txoj kev ncaj qha diluting cov khoom nrog dej yog tsis pom zoo, thiab nws yog nquag mus rau phenomena xws li txheej thiab demulsification, uas yuav cuam tshuam rau qhov zoo ntawm cov khoom.
JF-10 Yam khoom SPECIFICATIONS Qhov tshwm sim Dawb Translucent Paste Liquid Tus nqi pH 6.5-8.0 Nws Cov ntsiab lus 100% (tsis muaj dej noo) Viscosity (25 ℃) 80 ~ 100mPa Hom Emulsion Tsis-ionic Nyias 1.5% ~ 2% Polyacrylic Acid Thickening Dej