摘要
采用双螺杆挤出机和注塑机,成功制备了由木门加工剩余物、竹炭粉和聚丙烯组合成的木塑复合材料。利用扫描电镜研究了复合材料中木屑和竹炭粉在聚丙烯基体的界面粘附和嵌入情况,利用万能力学试验机、差热分析仪、傅里叶红外光谱仪和电阻测量仪对复合材料进行了抗拉强度、热力学性能、红外光谱和电阻性能测试。结果表明,当竹炭粉含量为10%~20%(质量分数)时,竹炭粉与基体的结合较好;竹炭粉含量由10%(质量分数)增加到50%(质量分数)时,复合材料的拉伸强度由34.25 MPa降低到22.36 MPa,降幅达33.60%,延伸率由9.48%降低到4.10%,降幅达56.75%,而复合材料的弹性模量从388.10 MPa增加到461.63 MPa,增幅为18.95%;此外,在一定范围内随着竹炭粉含量的增加,复合材料的吸水率增加,电阻率降低,导电性增强。
Wood-plastic composite made of wood processing residues/bamboo charcoal powder/PP was successfully prepared by double screw extruder and injection molding machine.In this paper,the interface adhesion of wood chip and bamboo charcoal powder embedding in wood-plastic composites were studied by scanning electron microscope.The tensile strength,thermodynamis properties,infrared spectra and resistance of composites were tested by electronic universal testing machine,differential thermal analyzer,Fourier infrared spectrometer and resistance measuring instrument.The results showed that when the bamboo charcoal content was 10%-20%,the combination of bamboo charcoal powder and matrix was better.When the bamboo charcoal content increased from 10%to 50%,the tensile strength of the composite decreased from 34.25 to 22.36 MPa,with a decrease of 33.60%,and the elongation decreased from 9.48%to 4.10%,with a decrease of 56.75%,but the elastic modulus of the composite increased from 388.10 to 461.63 MPa,with an increase of 18.95%.In addition,with the increase of bamboo charcoal powder content in a certain range,the water absorption,resistivity and conductivity of the composites increased.
作者
郭子豪
张雨
李文珠
赵磊
张文标
GUO Zihao;ZHANG Yu;LI Wenzhu;ZHAO Lei;ZHANG Wenbiao(School of Engineer,Zhejiang A&F University,Hangzhou 310000,China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2019年第7期7210-7215,共6页
Journal of Functional Materials
基金
浙江省重点研发计划资助项目(2018C02008)
关键词
木门加工剩余物
木塑复合材料
力学性能
wood door processing residue
wood plastic composite
mechanical properties
