常见分散剂对青霉素菌渣/低密度聚乙烯复合材料性能的影响及机理分析  

Effect of Common Dispersant on the Properties of Penicillin Residue/LDPE Composites and Mechanism Analysis

作　　者：方艳 赵冰冰[1] 武康 汪家权[1] FANG Yan;ZHAO Bing-bing;WU Kang;WANG Jia-quan(School of Resources and Environmental Engineer,Hefei University of Technology,Hefei 230009,China)

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009

出　　处：《塑料科技》2020年第8期105-109,共5页Plastics Science and Technology

基　　金：国家“十二五”科技重大专项(2012ZX07103-004)。

摘　　要：采用青霉素菌渣为生物原料,结合低密度聚乙烯(LDPE)材料制备复合材料,并通过加入凹凸棒石和轻质碳酸钙进一步优化复合材料性能。对制成的复合材料进行力学性能测试,结合红外光谱扫描和形貌测试分析等手段,分析复合材料制备过程中的微观和机理变化。结果表明:凹凸棒石和轻质碳酸钙都对菌渣粉有很好的分散作用,其中凹凸棒石具有的分层链状结构对菌渣粉的分散效果更好。当青霉素菌渣粉末与凹凸棒石质量比为1:2时,添加15%的混合粉末,3%的马来酸酐接枝聚乙烯(PE-g-MAH)和聚乙烯蜡,1%的白油制成的复合材料力学性能最佳,此时复合材料的拉伸强度、弯曲强度和弯曲模量为12.5、8.39、186 MPa,分别为基体材料的87.4%、134.2%、145.3%。In this paper,penicillin residue was used as a biological raw material combined with low-density polyethylene(LDPE)to prepare composites.The properties of composites were further optimized by adding attapulgite and light calcium carbonate.The mechanical properties of the prepared composites were tested.Combined with the analytical tools of infrared spectrum scanning and morphological test,we analyzed the microscopic and mechanism changes during the preparation of composites.The results show that both attapulgite and light calcium carbonate have a good dispersion effect on the bacterial residue powder,and the layered chain structure of the attapulgite has a better dispersion effect on the residue powder.The mechanical properties are the best when the mass ratio of penicillin residue and attapulgite is 1:2,and 15%mixed powder,3%maleic anhydride grafted polyethylene(PE-g-MAH)and polyethylene wax,1%white oil are added.Under this condition,the tensile strength,bending strength,and bending modulus of the composites are 12.5,8.39 and 186 MPa,which are 87.4%,134.2%,and 145.3%of the base material.

关 键 词：青霉素菌渣 轻质碳酸钙 凹凸棒石 复合材料 力学性能 

分 类 号：TQ322.9[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]