中文字幕无码日韩专区,我把美女日出了白将视频,日本乱偷人妻中文字幕在线

VARTM Process for Ramie Fiber Fabric Reinforced Anionic Polyamide-6 Composites

資料類型：

PDF文件

關(guān)鍵詞：

vartm anionic polyae-6 ramie fiber fabric thermoplastic
composites

資料大小：

109K

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：

Textilefiberreinforcedthermoplasticcompositesareincreasinglyusedformanufacturinghigh-performancelight-weightstructuresin,forinstance,theaerospaceandautomotiveindustry.Sincetheviscosityofthermoplasticpolymermeltsistoohigh,apoorimpregnationormoldfillwouldbehappened.Inordertomanufacturelarger,thickerandmoreintegratedthermoplasticcompositesthancurrentlycanbeachievedbymeltprocessing,avacuumassistedresintransfermolding(VARTM)iscurrentlybeingdevelopedusingareactivethermoplasticpolymercalledanionicpolyamide-6(APA-6).Naturalfiber,asakindoflowcost,lightweight,highspecificstrengthandstiffness,andnaturaldegradationofenvironment-friendlymaterial,usedinreinforcedcompositesiswidelyconcerned.However,nonaturalfiberreinforcedreactivethermoplasticpolymergradeshavebeenpreparedsofar.Throughourpreviousstudies,itwasdemonstratedthattherewasastronginteractionbetweenthelargenumberofhighlyreactivehydroxylonthesurfaceofcelluloseandtheinitiatorofAPA-6,whichresultinincompletepolymerizationwhenputtogether.Inordertosolvetheproblem,amethodwasadoptedbyusinganew-styleinitiatorcalledcaprolactammagnesiumbromide,whichhaslowerreactivityandweakeralkalineduetothefactthatitscationislargerandlessacidic,thuslimitedthereactionwiththehydroxylgroupsonthecellulose.itwouldmarkedlyreducetheconsumptionoftheinitiator.Asaresult,theroleofinhibitorhasbeensignificantlyimproved.FollowingramiefiberfabricreinforcedAPA-6compositeswithanaveragethicknessof2.5mmwaspreparedbyVARTM.Thesoxhletextractionanddifferentialscanningcalorimeter(DSC)measurementsrespectivelysuggestedthedegreeofconversionandcrystallizationofcompositeswas94%and50%.Remarkableimprovementofmechanicalpropertieswasachievedthroughdynamicmechanicalanalysis(DMA)andthree-pointbendingtest.Favorableinterfacialadhesionandwettabilitywererevealedbyscanningelectronmicroscopy(SEM)observation.Thevoidcontentandfiberfractionofcompositesweremeasuredbydensimeter.

作者：

M. B. Yang, Z. Kan

上傳時間：

2013-06-26 15:37:56

下載次數(shù)：

消耗積分：

立即下載：

好

1人

中

1人

差

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(guān)評論 共有0人發(fā)表評論

更多評論

你還沒有登錄，無法發(fā)表評論，請首先

免責聲明：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，敬請告知，我們會在第一時間撤除。本站中各網(wǎng)友的評論只代表其個人觀點，不代表本站同意其觀點。

最新上傳資料
·	電紡納米纖維增強聚合物復合材料...
·	超高相對分子質(zhì)量聚乙烯的研究進...
·	吸油樹脂的研究進展
·	雙酚A二縮水甘油醚的合成
·	間戊二烯-苯乙烯共聚物的合成
·	用負載型鈦系催化劑制備的乙丙共...
·	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>>

熱點資料
·	Electroactive Responsive Shap...
·	Novel Method for Silver Nanow...
·	Construction of Dual Stimuli...
·	Simulation of Fiber Orientati...
·	吸油樹脂的研究進展
·	超高相對分子質(zhì)量聚乙烯的研究進...
·	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>>

相關(guān)資料
·	乳液復合技術(shù): 一種節(jié)能、高效、...
·	Preparation and Representatio...
·	Reseaches on Pivotal Technolo...
·	Progress on High Performance ...
·	Simulation of Fiber Orientati...
·	Advances in Ordered Polymer-b...
·	Multi-scale Linear Low-nsity ...
更多>>

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