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Adeegsiga ether-ka cellulose waa mid aad u ballaaran, horumarka guud ee dhaqaalaha qarankana si toos ah ayuu u horseedi doonaa horumarinta warshadaha ether-ka cellulose. Waqtigan xaadirka ah, isticmaalka ether-ka cellulose ee Shiinaha waxaa inta badan lagu ururiyaa warshadaha sida qalabka dhismaha, o...Akhriso wax dheeraad ah»
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Xaaladda silsiladda warshadaha: (1) Warshadaha kor u kaca Alaabada ugu muhiimsan ee ceeriin ee looga baahan yahay soo saarista ether-ka cellulose waxaa ka mid ah cudbi la safeeyey (ama saxarka alwaaxa) iyo qaar ka mid ah dareere kiimiko oo caadi ah, sida propylene oxide, methyl chloride, soodhaha caustic-ga dareeraha ah, soodhaha caustic-ga, ethylene oxide, toluene iyo ...Akhriso wax dheeraad ah»
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Iyadoo cellulose loo adeegsanayo walxo ceeriin ah, CMC-Na waxaa lagu diyaariyey hab laba tallaabo ah. Tan koowaad waa habka alkalization-ka ee cellulose. Cellulose-ku wuxuu la falgalaa sodium hydroxide si uu u soo saaro alkali cellulose, ka dibna alkali cellulose wuxuu la falgalaa chloroacetic acid si uu u soo saaro CMC-Na, kaas oo loo yaqaan e...Akhriso wax dheeraad ah»
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Asalka iyo Dulmar Guud Cellulose ether waa walax kiimiko ah oo si weyn loo isticmaalo oo laga sameeyay polymer cellulose dabiici ah iyada oo loo marayo daaweyn kiimiko ah. Ka dib markii la soo saaray cellulose nitrate iyo cellulose acetate qarnigii 19-aad, kiimikooyinku waxay sameeyeen taxane ah oo ka soo jeeda cellulose o...Akhriso wax dheeraad ah»
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Warshadaha dawooyinka, hypromellose (HPMC, METHOCEL™) waxaa loo isticmaali karaa buuxin, xidhmo, polymer dahaarka kiniiniga iyo furaha daawada si loo xakameeyo sii deynta daawada. Hypromellose waxaa loo isticmaalay kiniiniyada in ka badan 60 sano waana maado muhiim ah oo si weyn loogu isticmaalo kiniiniyada matrix-ka jelka ee hydrophilic. P...Akhriso wax dheeraad ah»
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Hydroxyethyl cellulose waa wax soo saar cellulose muhiim ah. Iyada oo ay ugu wacan tahay faa'iidooyinka kheyraadka ceeriin ee badan, la cusboonaysiin karo, la burburin karo, aan sun ahayn, iswaafajin wanaagsan oo noolaha ah, iyo wax soo saar badan, cilmi-baaristeeda iyo codsigeeda ayaa soo jiitay dareen badan. Qiimaha viscosity waa mid aad muhiim u ah...Akhriso wax dheeraad ah»
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Waa maxay saamaynta kala duwan ee cellulose-ka kala duwan ku leeyihiin plaster-ka Paris Labada carboxymethyl cellulose iyo methyl cellulose waxaa loo isticmaali karaa sidii wakiilo biyaha celiya oo loogu talagalay plaster-ka, laakiin saameynta biyaha celiya ee carboxymethyl cellulose aad ayay uga hooseysaa tan methyl cellulose, iyo carboxymethyl ce...Akhriso wax dheeraad ah»
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Cellulose waa polysaccharide kaas oo sameeya noocyo kala duwan oo ethers ah oo biyaha ku milma. dhumucyayaasha cellulose waa polymers aan biyo ku milmin oo aan ionic ahayn. Taariikhdeeda isticmaalkeedu aad bay u dheer tahay, in ka badan 30 sano, waxaana jira noocyo badan. Wali waxaa loo isticmaalaa ku dhawaad dhammaan rinjiyada latex waana kuwa ugu muhiimsan dhumucyayaasha...Akhriso wax dheeraad ah»
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Waa maxay saameynta cabbirka urtu ku leeyahay hydroxypropyl methylcellulose: Isku-darka hydroxypropyl methylcellulose: Ku daawee cellulose suuf ah oo la safeeyey lye heerkul ah 35-40°C nus saac, riix, burburi cellulose-ka, oo si fiican u da'da 35°C, si heerka celceliska polymerization-ka ee la helay...Akhriso wax dheeraad ah»
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Aan ka hadalno hydroxypropyl methyl cellulose HPMC iyo sida loo cabbiro viscosity-geeda. viscosity-ga halkan waxa uu tilmaamayaa viscosity-ga muuqda, kaas oo ah tixraac muhiim u ah hydroxypropyl methyl cellulose. Caadiga ah. Hababka cabbirka caadiga ah waa cabbirka viscosity-ga wareega, capill...Akhriso wax dheeraad ah»
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Soo saarista agabka dhismaha, gaar ahaan hoobiyaha budada qalalan, cellulose ether wuxuu door muhiim ah ka ciyaaraa, gaar ahaan soo saarista hoobiye gaar ah (hoobiye wax laga beddelay), waa qayb muhiim ah. Doorka muhiimka ah ee ether cellulose ee biyaha ku milma hoobiyaha waa inta badan biyo-qabadkiisa aadka u fiican...Akhriso wax dheeraad ah»
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Cellulose waa qaybta ugu weyn ee derbiyada unugyada dhirta, waana polysaccharide-ka ugu baahsan uguna badan dabiiciga, kaasoo ka kooban in ka badan 50% kaarboonka ku jira boqortooyada dhirta. Kuwaas waxaa ka mid ah, kaarboonka ku jira cudbiga wuxuu ku dhow yahay 100%, kaas oo ah cetera-ga dabiiciga ah ee ugu saafiga badan...Akhriso wax dheeraad ah»