生物质全降解材料微观组织结构与性能关系研究  

Research of relations between microstructure and properties of biomass biodegradable materials

作　　者：吕禹[1] 贾秀杰[1] 李方义[1] 李剑峰[1] 郭安福[1] 张红 

机构地区：[1]山东大学机械工程学院,高效洁净机械制造教育部重点实验室,山东济南250061 [2]山东九发生物降解工程有限公司,山东烟台264100

出　　处：《功能材料》2011年第B11期855-858,共4页Journal of Functional Materials

基　　金：山东省科技发展计划基金资助项目(2010GGX10402);山东省自然科学基金资助项目(2010ZR2010EM007)

摘　　要：以采用植物纤维(稻草纤维)、淀粉为主料,通过发泡成型工艺制成的生物质全降解材料为研究对象,研究了该材料在成型过程中气泡孔的生长机理,并采用扫描电子显微镜微区化学分析技术对4种植物纤维、淀粉、发泡剂不同含量的生物质全降解材料微观组织结构进行实验研究。结果表明生物质全降解材料中的植物纤维的连接形式是相互交叉的立体网状结构;发泡剂含量为1.0%时,生物质全降解材料形成的气泡孔为封闭结构且分布比较均匀,这种均匀的结构保证了材料良好的抗冲击性、反弹性和隔热保温性。A kind of biomass biodegradable foaming material which was made of plant fiber（straw fiber） and starch via foam molding process has been researched.Growth mechanism of bubble hole of this material was researched,too.Microscopic structure of four different kinds of materials which has different content of plant fiber,starch and foaming agent was compared via scanning electron microscope（SEM） technology.The experimental results showed that connection form of plant fiber was overlapping stereo mesh structure.When foaming agent content was 1.0%,the size and distribution was well-distributed.Structure of bubbles was closed.This closed pore structure supported the deformation and buffer pressure of the material,and this made the material have good impact resistance,elasticity and heat insulation.

关 键 词：生物质 发泡成型 微观组织 气泡孔结构 

分 类 号：TB332[一般工业技术—材料科学与工程]