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Hydroxypropyl methylcellulose – hoobiye dhagax ah Kordhi dhegdhegga dusha sare ee dhagaxa, oo kor u qaad haynta biyaha, si loo hagaajiyo xoogga hoobiyaha. Dufanka iyo balaastikada oo la hagaajiyay si loo hagaajiyo sifooyinka codsiga, codsi fudud ayaa badbaadiya waqtiga oo hagaajiya...Akhriso wax dheeraad ah»
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Cellulose hydroxypropyl methyl ether waxaa laga sameeyaa cellulose cudbi aad u saafi ah iyada oo loo marayo etherification gaar ah xaaladaha alkaline. saamaynta: 1. Warshadaha dhismaha: Iyada oo ah wakiil biyaha celiya iyo dib-u-hagaajin ah oo ah hoobiyaha sibidhka, waxay ka dhigi kartaa hoobiyaha mid la bamgareyn karo. Malaas, gypsum, budada putty ama...Akhriso wax dheeraad ah»
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1. Heerkulka jel (0.2% xal) 50-90°C. 2. Ku milma biyaha iyo inta badan polar c iyo saamiga ku habboon ee ethanol/biyo, propanol/biyo, dichloroethane, iwm., aan ku milmi karin ether, acetone, ethanol buuxa, oo ku barara si cad ama xoogaa u milma xalka kolloidal biyo qabow. Biyaha ...Akhriso wax dheeraad ah»
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MC waa methyl cellulose, kaas oo laga sameeyay cellulose ether iyadoo lagu daweynayo cudbi la safeeyey alkali, iyadoo la adeegsanayo methane chloride oo ah wakiilka etherification, isla markaana la marayo taxane falcelin ah. Guud ahaan, heerka beddelka waa 1.6 ~ 2.0, milmiduna sidoo kale way kala duwan tahay iyadoo la eegayo darajooyin kala duwan...Akhriso wax dheeraad ah»
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hydroxypropyl methylcellulose-ka kiimikada maalinlaha ah waa polymer synthetic ah oo laga sameeyay suufka cellulose-ka dabiiciga ah iyada oo loo marayo wax ka beddelka etherification-ka. Cellulose ether waa wax ka soo jeeda cellulose-ka dabiiciga ah. Soo saarista cellulose ether way ka duwan tahay polymer-ka synthetic-ga. Waa maaddada ugu aasaasiga ah...Akhriso wax dheeraad ah»
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Ku darista hydroxypropyl methylcellulose si loo sameeyo budada putty, dheellitirkeedu ma fududa in aad u weynaato, aad u weynaantuna waxay sababi doontaa shaqeyn liidata, markaa intee le'eg ayuu dheellitirku u baahan yahay hydroxypropyl methylcellulose budada putty? Aan u falanqeyno qof walba. Waxaa ugu wanaagsan in lagu daro hydroxypropyl methylc...Akhriso wax dheeraad ah»
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Matoorka sibidhka iyo slurry-ka ku salaysan gypsum-ka, hydroxypropyl methylcellulose wuxuu inta badan door ka ciyaaraa haynta iyo dhumucda biyaha, wuxuuna si wax ku ool ah u hagaajin karaa isku-xidhka iyo iska caabbinta dhogorta. Arrimaha sida heerkulka hawada, heerkulka iyo xawaaraha cadaadiska dabaysha ayaa saameyn doona isbeddelka...Akhriso wax dheeraad ah»
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1. Dhibaatooyinka caadiga ah ee budada putty Qallajinta degdega ah: Tani waxay inta badan sabab u tahay xaddiga budada calcium lime ee lagu daray (aad u weyn, xaddiga budada calcium lime ee loo isticmaalo qaacidada putty si habboon ayaa loo dhimi karaa) waxay la xiriirtaa heerka haynta biyaha ee faybarka, waxayna sidoo kale la xiriirtaa daawada...Akhriso wax dheeraad ah»
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si dhakhso ah u qalaji Tani waxay inta badan sabab u tahay ku darista xad dhaafka ah ee budada kaalshiyamka dambaska (qaddarka budada kaalshiyamka dambaska ee loo isticmaalo qaacidada putty si habboon ayaa loo dhimi karaa) waxay la xiriirtaa heerka haynta biyaha ee hydroxypropyl methylcellulose, waxayna sidoo kale la xiriirtaa qallajinta derbiga. Diiritaanka...Akhriso wax dheeraad ah»
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Hydroxypropyl methylcellulose waa unug aan ionic ahayn oo ka samaysan cellulose ether oo laga farsameeyo suuf la safeeyey iyada oo loo marayo taxane falcelin kiimiko ah. Waa walax budo cad oo aan ur lahayn, oo aan sun ahayn oo ku milma biyaha isla markaana soo bandhigta xal colloidal cad ama xoogaa daruuro leh. Waxay leedahay astaamaha t...Akhriso wax dheeraad ah»
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Magaca Shiinaha ee HPMC waa hydroxypropyl methylcellulose. Waa mid aan ionic ahayn waxaana badanaa loo isticmaalaa sidii walax biyaha ku haysa hoobiye qalalan oo isku dhafan. Waa walaxda ugu badan ee biyaha ku haysa hoobiye. Waa badeeco ether ah oo ku salaysan polysaccharide oo ay soo saarto alkalization iyo etherification. Ma laha...Akhriso wax dheeraad ah»
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1. Dhibaatooyinka caadiga ah ee budada putty si dhakhso ah u qallala. Tani waxay inta badan la xiriirtaa xaddiga budada calcium ee dambaska lagu daray (aad u weyn, xaddiga budada calcium ee dambaska loo isticmaalo qaacidada putty si habboon ayaa loo dhimi karaa) iyo heerka haynta biyaha ee hydroxypropyl methylcellulose (HPMC), waana sidoo kale dib...Akhriso wax dheeraad ah»