私密直播全婐app免费大渔直播,国产av成人无码免费视频,男女同房做爰全过程高潮,国产精品自产拍在线观看

搜索:  
Morphology of Poly (lactic acid) Scaffolds Fabricat by a Modified Solvent Casting/Porogen Leaching Method  
Morphology of Poly (lactic acid) Scaffolds Fabricat by a Modified Solvent Casting/Porogen Leaching Method
資料類型: PDF文件
關鍵詞: morphology  porous  scaffold  porogen  leaching  poly(lactic  acid)  
資料大小: 112K
所屬學科: 分子表征
來源: 第六屆亞歐研討會上處理和性能增強聚合物會議文集(2013.6.2-6 武漢)
簡介:
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
上傳時間: 2013-06-28 17:30:30
下載次數: 1
消耗積分: 2  
立即下載:
1人
1人
1人
友情提示:下載后對該資源進行評論,即可獎勵2分。
報告錯誤:  1.下載無效  2. 資料明顯無價值  3. 資料重復存在

相關評論 共有0人發表評論 更多評論
你還沒有登錄,無法發表評論,請首先 登錄 注冊
免責聲明:本站部分資源由網友推薦,來自互聯網,版權屬于原版權人,如果不慎侵犯到您的權利,敬請告知,我們會在第一時間撤除。本站中各網友的評論只代表其個人觀點,不代表本站同意其觀點。
主站蜘蛛池模板: 昌宁县| 宁晋县| 重庆市| 荆州市| 墨竹工卡县| 兴和县| 池州市| 岑巩县| 洛浦县| 枣强县| 乌海市| 建平县| 安吉县| 阜南县| 芜湖县| 江西省| 商丘市| 桂林市| 咸宁市| 开封县| 长汀县| 吴江市| 宜都市| 依兰县| 文化| 汽车| 双流县| 嘉祥县| 崇阳县| 黄山市| 通许县| 额尔古纳市| 昭苏县| 四会市| 庐江县| 叶城县| 保靖县| 泗洪县| 阿拉善左旗| 吉隆县| 汶上县|