SiO2纳米复合材料的制备及性能.pdf

《SiO2纳米复合材料的制备及性能.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、第27卷第2期CHEM●一ICA'LR⋯ESEuARCH1http：／／hxya．cbpt．cnki．net双马来酰亚胺树脂／Sio2纳米复合材料的制备及性能柳准，赵梦溪，孙闯，徐启杰(黄淮学院化学化工系，河南驻马店463000)摘要：以表面含有胺基官能团的纳米SiO为填料，通过一步原位聚合法制备双马来酰亚胺树]~／SiO纳米复合材料(BMI／SiOz)．采用热重分析仪(TGA)、红外光谱分析仪(FTIR)、邵氏D硬度计(H)等仪器设备对BMI／SiOz纳米复合材料进行测试分析，探讨纳米SiOz对双马来酰亚胺聚酯树脂的热稳定性能、硬度和界面强度的影响．

2、结果表明，所制备的BMI／SiOz纳米复合材料的硬度随加入的纳米Si0含量的增加，呈现逐渐升高趋势．当纳米SiOz含量为3时，相对于双马来酰亚胺聚酯，复合材料的硬度提高了8o．通过热稳定性分析可知，纳米SiOz的加入降低了双马来酰亚胺树脂基体材料的热分解温度，使其从458℃降低到451℃．通过对双马来酰亚胺／Si0z纳米复合材料的界面分析发现，纳米si0z的表面接枝了双马来酰亚胺分子链，说明纳米SiOz参与了双马来酰亚胺的聚合过程，有利于提高聚合物基体材料与填料间的界面强度，进而提高复合材料的机械性能．关键词：原位聚合；纳米复合材料；力学性能；硬度；纳

3、米siO；交联度中图分类号：O635．2文献标志码：A文章编号：1008—1011(2016)02—0241—05Preparationandpropertiesofbismaleimidesresin／SiO2nanocompositesLIUZhun，ZHAOMengxi，SUNChuang，XUQijie(Thedepartmentofchemistryandchemicalengineering，HuanghuaiUniversity，Zhumadian463000，Henan，China)Abstract：Bismaleimides／SiO2

4、nanocomposites(BMI／SiO2)waspreparedreadilybyinsitupol—ymerizationmethodwithnano—SiO2withsurfaceaminogroupsusedasthefiller．Thecharac—teristicsofnamocompositeswerestudiedbyTGA，FT—IR，Shorehardnesstester(D)，andSOon．Furthermore，theeffectsofnano—Si02onthethermalstabilityperformance，ha

5、rdnessofbismaleimides，andinterfacialstrengthbetweennano-SiO2andbismaleimideswerestudied．Theresultsshowedthatthehardnessofas—preparedBMI／SiO2nanocompositesweregradullyimprovedwithincreasingtheamountofnano-SiO2，increasedby8OincomparisonwithBMIimidepolyesterwhenthenano—SiO2contentw

6、as39／6．Itindicatedthatnano—SiO2significantlyimprovedthehardnessofbisimide．Thethermalstabilityanalysisshowedthatthethermalde-compositiontemperatureofBM1was458℃，however，theadditionofnano—SiO2ledtodecrea—singthedecompositiontemperatureofBMImatrix．Thermaldecompositiontemperaturereac

7、hedto451℃whentheamountofnano—Si02wasaddedto99／6．Thisshowedthattherma1decompositiontemperatureofbismaleimidepolyestergraduallydecreasedwiththeadditionofnano—SiO2Additionally，BMImolecularchainsanchoredonthesurfaceofnano—Si02bychemi—callybondingactionbecausethesurfaceaminogroupsofn

8、ano—SiO2particutedinthepolymeri一收稿日期：2015—08—26