搜索:  
Solvent Effect on Preparation of Carboxymethyl Cotton Knitted Fabrics for Wound Dressing  
Solvent Effect on Preparation of Carboxymethyl Cotton Knitted Fabrics for Wound Dressing
资料类型: PDF文件
关键词: carboxymethylation  cotton  knitted  fabrics  substitution  degree  water  
absorbency  
资料大小: 102K
所属学科: 分子表征
来源: 第六届亚欧研讨会上处理和性能增强聚合物会议文集(2013.6.2-6 武汉)
简介:
Moistwounddressingsbasedonthecarboxymethylcelluloseareveryimportanttoclinicalpractice.Cellulosefiberandtextilecarboxymethylatedwithlowsubstitutiondegreeshowgoodwaterabsorbencyandmoistureretentiveness,whichcanbeusedforwoundtherapy.Inthisstudy,carboxymethylcottonknittedfabrics(CM-CKFs)werepreparedbybeingtreatedwithNaOHandCICH2COONaindifferentsolvents:water,ethanol-water(v/v:3/1),isopropanol-water(v/v:3/1)underthesameexperimentalconditions.EffectsofsolventpolarityonthestructureandphysicalpropertiesofCM-CKFswerediscussed.Asthesolventpolarityreduced,thesubstitutiondegree(0.13,0.50,0.65)andcrystallinityindexofCM-CKFsdecreased,andtherewasappreciablemcreaseinfiberdiametershowedbyscanningelectronmicroscopeimages.Thewaterabsorbencyofsamplestreatedinwater,ethanol-water(v/v:3/1),isopropanol-water(v/v:3/1)werel.86,6.95and14.86g/g,respectively.Correspondingly,thebreakingstrengthoftheCM-CKFsincreasedslightly,whiletheirbreakingelongationgraduallydecreased.Inaddition,thesamplestreatedinmixedsolventshadgoodblockingperformance.Thus,theefficiencyofcarboxymethylationreactionwasincreasedasthesolventpolaritydecreased.TheCM-CKFscouldbeusedasgoodabsorbingmaterialsforthepreparationofhighperformancewounddressings.
作者: J. C. Zhao , Y. H. Tang, Y. Liul , C. J. Zhang,J. H. Ran ,X X. Xil , W. G. Lin , P. Zhu
上传时间: 2013-07-02 16:17:30
下载次数: 1
消耗积分: 2  
立即下载:
1人
1人
1人
友情提示:下载后对该资源进行评论,即可奖励2分。
报告错误:  1.下载无效  2. 资料明显无价值  3. 资料重复存在

相关评论 共有0人发表评论 更多评论
你还没有登录,无法发表评论,请首先 登录 注册
免责声明:本站部分资源由网友推荐,来自互联网,版权属于原版权人,如果不慎侵犯到您的权利,敬请告知,我们会在第一时间撤除。本站中各网友的评论只代表其个人观点,不代表本站同意其观点。