Preparation and Properties of Lignin/PP-Maleic Anhydride Composites
Lignin/PP-maleic anhydride composites were prepared by melt blending polypropylene,lignin,maleic anhydride and diisopropylbenzene peroxide.The melt flow rate,tensile properties,impact properties and spherulite growth of samples were tested by melt flow rate tester,universal testing machine,impact testing machine and hot stage polarizing microscope.The results show that the melt flow rate and the elastic modulus of samples increased first and then decreased with the content of maleic anhydride.When the content of maleic anhydride was one phr,the melt flow rate of the sample had a maximum value of 48.18 g/10 min,which was 7.11％higher than the the sample without maleic anhydride.When the content of maleic anhydride was two phr,the elastic modulus of the sample had a maximum value of 645.63 MPa,which was 15.27％higher than the the sample without maleic anhydride.
万方数据
维普
