第51卷第2期2023年1月广州化工GuangzhouChemicalIndustryVol.51No.2Jan.2023超临界间歇发泡技术制备聚丁二酸丁二醇酯/海泡石开孔泡沫王傲峰,欧萱乐,徐睿杰,雷彩红(广东工业大学材料与能源学院,广东省储能材料与器件工程实验室,广东广州510006)摘要:采用共混改性的方法制备了聚丁二酸丁二醇酯/海泡石复合材料,通过能谱分析法和旋转流变仪研究了不同海泡石含量在聚丁二酸丁二醇酯(PBS)中的分散情况及其对PBS流变性能的影响。随着海泡石含量的增加,海泡石在PBS基体中越来越密集,但分散仍然均匀。当海泡石含量为10wt%时,复数黏度与储能模量提高了3倍左右。随后,我们利用超临界CO2发泡技术对PBS/海泡石复合材料进行发泡,进一步探究海泡石(Sep)对泡孔结构及吸水、吸油量的影响。实验结果表明,在10wt%的PBS/海泡石开孔泡沫中,泡孔分布均匀,且吸水、吸油性能最佳。关键词:聚丁二酸丁二醇酯;海泡石;泡孔形貌;开孔泡沫;复合材料中图分类号:TQ317文献标志码:A文章编号:1001-9677(2023)02-0149-05通讯作者:雷彩红。AFoamingStudyonPolybutyleneSuccinate/SepioliteCompositeWANGAo-feng,OUXuan-le,XURui-jie,LEICai-hong(GuangdongEnergyStorageMaterialsandDeviceEngineeringLaboratory,SchoolofMaterialsandEnergy,GuangdongUniversityofTechnology,GuangdongGuangzhou510006,China)Abstract:Polybutylenesuccinate/sepiolitecompositeswerepreparedbyblendingmodification,andthedispersionofdifferentsepiolitecontentsinpolybutylenesuccinate(PBS)anditsinfluenceonPBSrheologicalpropertieswerestudiedbyenergyspectroscopyandrotationalrheometer.Asthecontentofsepioliteincreased,sepiolitebecamedenserinPBSmatrix,butthedispersionwasstilluniform.Whenthesepiolitecontentwas10wt%,thecomplexviscosityandstoragemodulusincreasedbyabout3times.Subsequently,supercriticalCO2foamingtechnologywasusedtofoamPBS/sepiolitecompositestofurtherexploretheeffectsofsepioliteoncellstructure,waterabsorptionandoilabsorption.Theexperimentalresultsshowedthatin10wt%PBS/sepioliteopen-cellfoam,thecelldistributionwasuniform,andthewaterabsorptionandoilabsorptionperformancewerethebest.Keywords:polybutylenesuccinate;sepiolite;cellmorphology;open-cellfoam;composites聚丁二酸丁二醇酯(PBS)是一种性能优越的生物降解塑料,广泛应用于隔音...
