改性水滑石复合质子交换膜的制备及性能 10000 6.docx

PAGE\*MERGEFORMATII壳聚糖/改性水滑石复合质子交换膜的制备及性能摘要：这里用来制备改性水滑石(Q-LDH)的方法是季铵化改性，在壳聚糖（CS）基体中混合剂量不一的改性水滑石制成了不同含量Q-LDH的CS/改性水滑石复合质子交换膜。采用IR和TG分析改性水滑石的结构以及组成。对复合膜的断面形态，通过SEM来观测，同时采取措施测试出了复合膜的各种性质，比方说质子传导率、尺寸稳定性等等。测试完成后发现，在各项性能指标中，最为优越的一种指标是热稳定性。在加入改性水滑石以后，得到了显著提高的性能指标有质子传导率还有其力学性能，其他的性能指标没有变化。关键词：壳聚糖；改性水滑石；质子交换膜Preparationandpropertiesofchitosan/modifiedhydrotalcitecompositeprotonexchangemembraneAbstract:Themethodofpreparingmodifiedhydrotalcite(Q-LDH)isquaternaryammoniummodification.CS/modifiedhydrotalcitecompositeprotonexchangemembraneswithdifferentcontentofQ-LDHwerepreparedbymixingdifferentdosesofModifiedHydrotalciteinchitosan(CS)matrix.ThestructureandcompositionoftheModifiedHydrotalcitewereanalyzedbyIRandTG.Thecross-sectionalmorphologyofthecompositefilmwasobservedbySEM.Meanwhile,variouspropertiesofthecompositefilm,suchasprotonconductivity,dimensionalstabilityandsoon,weretested.Aftertesting,itisfoundthatthermalstabilityisoneofthemostsuperiorperformanceindicators.Afteraddingthemodifiedhydrotalcite,thepropertiesoftheModifiedHydrotalcitehavebeensignificantlyimproved,includingprotonconductivityandmechanicalproperties,whiletheotherpropertieshavenotchanged..Keyword：Chitosan;modifiedhydrotalcite;protonexchangemembraneTOC\o"2-3"\f\h\z\t"标题1,1"目录TOC\o"1-3"\h\z\uHYPERLINK\l_Toc25546摘要PAGEREF_Toc25546IHYPERLINK\l_Toc7518关键词PAGEREF_Toc7518IHYPERLINK\l_Toc24969AbstractPAGEREF_Toc24969IIHYPERLINK\l_Toc6462KeywordPAGEREF_Toc6462IIHYPERLINK\l_Toc83671.前言PAGEREF_Toc335411.1HYPERLINK\l_Toc3354壳聚糖的简介与应用PAGEREF_Toc33541HYPERLINK\l_Toc215851.2壳聚糖在质子交换膜的研究进展PAGEREF_Toc215852HYPERLINK\l_Toc42001.3水滑石简介PAGEREF_Toc42005HYPERLINK\l_Toc7581.4本次实验的目的以及意义PAGEREF_Toc7586HYPERLINK\l_