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:  
Preparation of Highly Porous and Interconnected Scaffold by the Combination of Particulate Leaching and Supercritical C02 Foaming  
Preparation of Highly Porous and Interconnected Scaffold by the Combination of Particulate Leaching and Supercritical C02 Foaming
資料類型: PDF文件
關(guān)鍵詞: tissue  engineering  scaffold  supercritical  c02  porous  agent  
vane  extruder  
資料大小: 104K
所屬學(xué)科: 分子表征
來源: 第六屆亞歐研討會(huì)上處理和性能增強(qiáng)聚合物會(huì)議文集(2013.6.2-6 武漢)
簡介:
ThisstudyistoprepareporousscaffoldsbyusingvaneextruderandevaluatethefeasibilityofapreparationmethodofcombiningparticulateleachingandsupercriticalC02foamingtechniquesforthepreparationofhighlyinterconnectedthree-dimensionalpolymericporousscaffolds.Inthefirststepofthistechnique,polyvinylalcohol(PVOH)actingasporeagentwascompositewithpolylacticacid(PLA)byusingvaneextruder.Toformco-continuousmorphology,thevolumeratioofPVOHwaskeptabove50%,thenwatersolublepolymerPVOHwasextracted.Themaximumporosityisupt070%,yettheporesizeisdifficulttocontrol.Amountofsodiumchloridesaltwasaddedactedassecondaryporeagent,whichiseasytocontrolporesize.Inthisstudy,twokindsofsaltparticlesizerangewereused,38一75ymand75~150ym.TheporesizeinthescaffoldsiscontrolledbysaltparticulatesandinterconnectivityisachievedbythewatersolublePVOH.Scanningelectronmicroscopyandthermogravimetricanalyzerwereinvestigatedtheeffectofsaltparticlessizeonmixinguniformityandporemorphology.Theresultsindicatedthatsmallerparticlesizeisadvantagetoformhighlyinterconnectedporesanduniformdistribution.Inordertoincreasetheporosity,supercriticalC02foamingwasintroduced.Thepreparedscaffoldshaverelativelyhomogeneousporestructureandtheporositycanbeupt085%.
作者: B. Y. Chen, P. Yu, H. B. Zhao, W. H. Zhang, X. F. Peng
上傳時(shí)間: 2013-07-02 15:56:39
下載次數(shù): 1
消耗積分: 2  
立即下載:
1人
1人
1人
友情提示:下載后對(duì)該資源進(jìn)行評(píng)論,即可獎(jiǎng)勵(lì)2分。
報(bào)告錯(cuò)誤:  1.下載無效  2. 資料明顯無價(jià)值  3. 資料重復(fù)存在

相關(guān)評(píng)論 共有0人發(fā)表評(píng)論 更多評(píng)論
你還沒有登錄,無法發(fā)表評(píng)論,請(qǐng)首先 登錄 注冊(cè)
免責(zé)聲明:本站部分資源由網(wǎng)友推薦,來自互聯(lián)網(wǎng),版權(quán)屬于原版權(quán)人,如果不慎侵犯到您的權(quán)利,敬請(qǐng)告知,我們會(huì)在第一時(shí)間撤除。本站中各網(wǎng)友的評(píng)論只代表其個(gè)人觀點(diǎn),不代表本站同意其觀點(diǎn)。
主站蜘蛛池模板: 搜索| 岳池县| 胶南市| 巢湖市| 密云县| 启东市| 湘阴县| 长汀县| 宁陵县| 宝兴县| 韩城市| 阿克陶县| 青铜峡市| 扎赉特旗| 宜黄县| 博罗县| 清镇市| 敦煌市| 尉犁县| 黄大仙区| 翁牛特旗| 房山区| 深圳市| 宕昌县| 柘城县| 莲花县| 张家港市| 赞皇县| 个旧市| 密山市| 饶河县| 宜兰县| 新密市| 虹口区| 陵水| 昆明市| 唐河县| 岢岚县| 丹凤县| 商水县| 米林县|