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Doorka hydroxyethyl cellulose (HEC) ee dahaarka
Hydroxyethyl cellulose (HEC), jaale cad ama khafiif ah, aan ur lahayn, fibros aan sun ahayn ama adag budo ah, oo lagu diyaariyey falcelinta etherification ee cellulose alkaline iyo ethylene oxide (ama chlorohydrin), waxaa iska leh ethers cellulose ee Nonionic milmaya. Maadaama HEC ay leedahay sifooyin wanaagsan oo dhumucdiisuna, laalid...Sii akhri -
Saamaynta dhumucda ee hydroxypropyl methylcellulose
Hydroxypropyl methylcellulose wuxuu ku siinayaa hoobiye qoyan oo leh viscosity aad u fiican, kaas oo si weyn u kordhin kara awoodda isku xirnaanta ee u dhaxaysa hoobiye qoyan iyo lakabka salka, iyo hagaajinta waxqabadka anti-sag ee hoobiye. Waxaa si weyn loo isticmaalaa in lagu dhejiyo hoobiye, nidaamka dahaarka derbiga dibadda iyo leben b ...Sii akhri -
Isticmaal hydroxypropyl methylcellulose si aad ugu hoggaansanto guryaha qaarkood
Hydroxypropylmethylrubicin (HPMC) waa walxo cellulosic ah, saxarka ama suufka oo loo isticmaali karo in lagu sifeeyo saxarka alwaax. Ka hor inta aan la burburin nidaamka alkalization ama alkalization. Burburka makaanikada waxa laga yaabaa inuu burburiyo qaab dhismeedka guud ee walaxda cellulose-ka ee warqadda, taasoo hoos u dhigaysa polymerizatio...Sii akhri -
Farqiga u dhexeeya hydroxypropyl methylcellulose HPMC iyo methylcellulose MC
HPMC waa hydroxypropyl methylcellulose, kaas oo ah unug aan-ionic cellulose isku qasan oo laga sameeyey suuf la safeeyey ka dib alkalization, iyadoo la isticmaalayo propylene oxide iyo methyl chloride sida wakiilada etherification, iyo iyada oo taxane falcelin. Darajada beddelka guud ahaan waa 1.2 ~ 2.0. Hantideeda ayaa ah...Sii akhri -
Cellulose Ether
Eter cellulose waxaa laga sameeyaa cellulose iyada oo loo marayo falcelinta etherification ee hal ama dhowr wakiilada etherification iyo shiidi qalalan. Marka loo eego qaababka kala duwan ee kiimikooyinka beddelka ether-ka, ether-ka cellulose waxaa loo qaybin karaa anionic, cationic iyo ethers nonionic. Ionic cellulose iyo ...Sii akhri -
Hydroxypropyl Methyl Cellulose HPMC Properties
Hydroxypropyl methylcellulose HPMC waa nooc ka mid ah cellulose aan-ionic ahayn oo isku qasan. Si ka duwan ionic methyl carboxymethyl cellulose ether qasan, kuma falceliso biraha culus. Sababo la xiriira saamiga kala duwan ee maadada methoxyl iyo ka kooban hydroxypropyl ee hydroxypropyl methylcellulose iyo dif...Sii akhri -
Codsiga hydroxypropyl methylcellulose ee hoobiye gypsum
Tijaabada tijaabada codsiga ee hydroxypropyl methylcellulose: 1. Tijaabada xoogga: Imtixaanka ka dib, gypsum-based hydroxypropyl methylcellulose waxay leedahay xoog isku xidhan oo wanaagsan iyo xoog cadaadis leh. 2. Tijaabada ka-hortagga: Ma jiro sag marka dhismaha hal baas ah lagu mariyo lakabyo qaro weyn, iyo ma sag marka...Sii akhri -
Hydroxypropyl methyl cellulose ether (HPMC) ee hoobiye budada qalalan
Magaca Shiinaha ee HPMC waa hydroxypropyl methylcellulose. Waa non-ionic waxaana badanaa loo isticmaalaa sidii wakiilka biyaha haynta ee hoobiye-engegan oo isku qasan. Waa maadada ugu badan ee lagu kaydiyo biyaha ee hoobiye. Habka wax soo saarka ee HPMC inta badan waa shey ether-ku-saleysan polysaccharide oo ay soo saartay...Sii akhri -
Hydroxypropyl Methyl Cellulose Ether (HPMC)
Astaamaha: ① Biyo-hayn wanaagsan, dhumucdiisuna, rheology iyo adhesion, waa doorashada kowaad ee alaabta ceeriin ee hagaajinta tayada qalabka dhismaha iyo alaabta qurxinta. ② Isticmaalka ballaaran: darajooyin dhameystiran awgeed, waxaa lagu dabaqi karaa dhammaan qalabka dhismaha budada ah. ③ Qaado yar...Sii akhri -
Codsiga Eter-ka Cellulose ee Tignoolajiyada Soo Bixinta Kulul ee Kulul
Joseph Brama waxa uu alifay habka extrusion ee soo saarista tubooyinka rasaasta dhamaadkii qarnigii 18-aad. Ma ahayn ilaa badhtamihii qarnigii 19-aad in tignoolajiyada kululaynta kululaynta la bilaabay in loo isticmaalo warshadaha balaastikada. Waxaa markii ugu horreysay loo adeegsaday soo saarista daaha-polymer-ka dahaarka f ...Sii akhri -
Etherification Mabda'a Synthetic ee Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl methylcellulose (HPMC), cellulose ceeriin, waxaa lagu sifeyn karaa suuf ama saxarka alwaax, waxaa aad loogu baahan yahay in la burburiyo ka hor alkalization ama inta lagu guda jiro alkalization, iyo burburinta waa iyada oo loo marayo tamar farsamo Burbur qaab dhismeedka guud ee alaabta ceeriin cellulose si loo yareeyo heerka cr...Sii akhri -
Hydroxypropyl methyl cellulose ether ee dhismaha
Astaamaha wax soo saarka ee hydroxypropyl methylcellulose ee dhismaha Ku milmaya biyaha iyo qaar ka mid ah dareerayaasha organic. Waxaa lagu milmi karaa biyo qabow. Xoojinteeda ugu badan waxay ku xidhan tahay viscosity-ga. Solubility wuxuu la beddelaa viscosity. Viscosity-ka hoose, waa ka weyn yahay solubi...Sii akhri
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