Morphology of Poly (lactic acid) Scaffolds Fabricat by a Modified Solvent Casting/Porogen Leaching Method，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）-中国聚合物网,论文下载

Morphology of Poly (lactic acid) Scaffolds Fabricat by a Modified Solvent Casting/Porogen Leaching Method

资料类型：

PDF文件

关键词：

morphology porous scaffold porogen leaching poly(lactic acid)

资料大小：

112K

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：

Solventcasting/particulateleaching(SC/PL)ismostcommonlyusedforfabricatingmicro-porousandmacro-porouspolymerscaffolds.Theadvantageofthismethodisthattheprocessiseasytocarryoutandeasytocontroltheporesizeandporositybyselectingsuitableparticlesizeandamountoftheaddedsaltparticles.However,thescaffoldspreparedbythismethodusuallyhaveadensesurfacelayerandpoorinterconnectivitybetweenmacropores.Therefore,mostofthescaffoldspreparedbythismethodareeitherlimitedtotwo-dimensionalfilmsorconstructedbylaminationofseveralfilmsintodesiredshape.Inourpreviousstudy,amodifiedmethod,namelythesolventcasting/vacuumvolatilization/particulateleaching(SC/VV/PL)method,isproposedtofabricatethree-dimensionalpoly(lacticacid)(PLA)scaffoldscl]andgradedmacroporousPLAscaffoldc2]withadesiredrangeofcompressivemodulus,controlledporesizesandporosities.Inthisstudy,thePLAscaffoldswerefabricatedbytheSC/VV/PLmethodandtraditionalSC/PLmethodandwerecomparativelyresearched.Theeffectofthesizedistributionofporogenontheinterconnectivitybetweentheporeswasdiscussed,too.TheresultsshowedthattheSC/VV/PLmethodhassomeadvantageswhichcanovercomesomeshortcomingsofthetraditionalSC/PLmethod,suchasunsatisfactorysurfacestructure,longprocessingtimeandpoorinterconnectivitybetweenmacropores.Moreover,broadsizedistributionoftheporogenisbetterforforminggoodinterconnectivitybetweenmacropores.Whenthesmallsizeporogenwasblendedinthebigsizeporogen,thesmallNaCIparticlescanfilltheinterspaceamongthebigparticles.Thepackingvolumeoftheporogenwithbroadsizedistributionissmallerthanthesamequalityporogenwithnarrowsizedistribution.Thismeanstheporogenwithbroadsizedistributioncanbepackedmorecompactness.Thesmallparticlesbetweenbigparticlescancontributetowell-interconnectedporousstructure.

作者：

X. H. Gong , L. Pan, X. Wang, J. Jiang, G. Zhang

上传时间：

2013-06-28 17:30:30

下载次数：

消耗积分：

立即下载：

好

1人

中

1人

差

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

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。

最新上传资料
·	电纺纳米纤维增强聚合物复合材料...
·	超高相对分子质量聚乙烯的研究进...
·	吸油树脂的研究进展
·	双酚A二缩水甘油醚的合成
·	间戊二烯-苯乙烯共聚物的合成
·	用负载型钛系催化剂制备的乙丙共...
·	Simulation of Fiber Orientati...
·	Advances in Ordered Polymer-b...
·	Construction of Dual Stimuli...
·	Small Amount of Functionalize...
·	Multi-scale Linear Low-nsity ...
·	Magnetic iron oxide (Fe3O4) ...
·	Surfactant Free C02-in-Water ...
更多>>

热点资料
·	Electroactive Responsive Shap...
·	Novel Method for Silver Nanow...
·	Construction of Dual Stimuli...
·	Simulation of Fiber Orientati...
·	吸油树脂的研究进展
·	超高相对分子质量聚乙烯的研究进...
·	Electrospun Nanocomposite fro...
·	Structural Aspects of Polymer...
·	Unidirectional Natural Fibre ...
·	Study on Structure and Proper...
·	Multiaxial Fatigue Behaviour ...
·	Actuation and Shape SMP/CNTs...
·	Advances in Polymer Nanocompo...
更多>>

相关资料
·	Hypercrosslinked Microporous ...
·	A Facile Way to Fabricate Hyb...
·	Processing and Characterizati...
·	Preparation of Highly Porous ...
·	Processing and Microcellular...
·	Flow-induced Morphologies of ...
·	Thermal and Mechanical Proper...
更多>>