Preparation and Research of PP/LLDPE/Reed Wood Plastic Composites
The polypropylene (PP)/linear low density polyethylene (LLDPE)/reed wood plastic composites were prepared by blending PP and LLDPE.Effects of the ratio of PP to LLDPE and reed dosage on wood-plastic composites properties were studied.And the effects on mechanical properties,processing flow-abilities,microstructures and thermal properties after reed modified by silane coupling agent KH550,A-151 and titanate coupling agent NDZ-101 were discussed.The results show that the comprehensive properties are optimal when the ratio of PP to LLDPE is 60/40 and adding reed modified by 30 percents of silane coupling agent A-151.The tensile strength,bending strength and impact strength increase by 33.93％,23.59％ and 42.58％ respectively,while the melt flow rate is increased 18.69％ compared with those of the wood plastic composites unmodified by reed.SEM analysis indicats that the compatibility of modified reed,PP and LLDPE is good.
polypropylenelinear low density polyethylenereedsmodificationwood plastic compositesmechanical propertymicroscopic structurethermal property
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