生物基聚合物及其复合材料作为一种绿色环保、可持续发展的材料备受瞩目。通过离子液体(1-丁基-3-甲基咪唑六氟磷酸盐)液相剥离六方氮化硼,得到六方氮化硼纳米片(BNNS)作为填料填充到聚乳酸(PLA)中,制得PLA/BNNS复合材料并对其各方面性能进行了研究,结果表明:制备的PLA/BNNS复合材料为不透光材料,阻燃效果明显,随着填料BNNS含量不断增加,复合材料的导热系数不断增大,熔点也有所上升,在BNNS含量为30%时,达到最大值,分别为3.37W/(m·k)和173.4℃,而当BNNS含量为15%时,拉伸性能达到最大为78.3MPa。
Bio-based/green polymer and multi-functional bio-based polymer composites have attracted much attention as a kind of green and sustainable materials.By using ionic liquid (1-butyl-3-methyl imidazole hexafluorophosphate) in liquid phase to strip the hexafluorophosphate,hexagonal boron nitride (BNNS) nanosheet was obtained and filled into PLA.The BNNS/PLA composite material was prepared and its various properties were studied.The results showed that the BNNS/PLA prepared was opaque materials,flame retardant effect was obvious.Along with increasing the content of filler BNNS,the coefficient of thermal conductivity of the BNNS/PLA increased,and a rise in the melting point.When the content of BNNS was 30%,the maximum values were 3.37W/(m·k) and 173.4℃,respectively.When BNNS content was 15%,the maximum tensile properties of 78.3MPa.
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