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摘要
采用麦秸粉、聚乳酸(PLA)、偶联剂(KH550)、增塑剂(PEG400)、助剂,制得PLA/麦秸粉复合材料,探究了麦秸粉、KH550、PEG400、助剂的用量对PLA/麦秸粉复合材料力学性能的影响。研究结果表明:麦秸粉用量过多会导致PLA/麦秸粉复合材料的力学性能降低,在麦秸粉用量为10%(wt,质量分数,下同)、PLA用量为90%、KH550用量为6%、PEG400用量为10%,助剂用量为1%条件下,制得的PLA/麦秸粉复合材料的拉伸强度为38.0MPa,断裂拉伸应变为40.0%,弯曲强度为60.0MPa,冲击强度为14.0kJ/m2,具有较好的力学性能。
Abstract
The effects of the content of wheat straw powder,coupling agent (KH550) and plasticizer (PEG400) on the properties of PLA (polylactic acid)/wheat straw powder composite were studied by single factor experiment.The results showed that the mechanical properties of composites were decreased with the increase of the content of wheat straw powder.With the content of 10wt% wheat straw powder,90wt% PLA,6wt% KH550 and 1wt% additive,the tensile strength,fracture tensile strain,flexural strength and impact strength of composites were 38.0MPa,40.0%,60.0MPa and 14.0kJ/m2 respectively.The composite showed good mechanical properties.
关键词
聚乳酸
/
生物质聚合物复合材料
/
力学性能
/
微观形貌
Key words
polylactic acid
/
biomass polymer composite
/
mechanical property
/
microstructure
聚乳酸/麦秸粉复合材料的制备及性能研究[J].
化工新型材料, 2018, 46(8): 269-271 DOI:
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基金资助
中央高校基本科研业务费专项基金项目(2572015AB23)
