多层石墨烯对PA6改性的性能研究

发布时间：2019-05-16 16:48

【摘要】：利用熔融共混法制备了聚酰胺6(PA6)/多层石墨烯复合材料并研究了其性能。结果表明,多层石墨烯具有明显的成核作用,使PA6的结晶过程可在较高温度下进行;降低了PA6的结晶速率,有利于生成热力学更稳定的α型晶体。多层石墨烯提高了PA6的玻璃化转变温度,对PA6具有增强增刚作用,在多层石墨烯质量分数为2.5%时,PA6拉伸强度增加了11.4%,弹性模量增加了29.3%,在多层石墨烯质量分数为2%内对PA6冲击强度基本没有影响。
[Abstract]:Polyamide 6 (PA6) / multi-layer graphene composites were prepared by melt blending and their properties were studied. The results show that the multi-layer graphene has obvious nucleation effect, so that the crystallization process of PA6 can be carried out at higher temperature, and the crystallization rate of PA6 is reduced, which is beneficial to the formation of thermodynamic 伪-type crystals. Multi-layer graphene increased the glass transition temperature of PA6 and strengthened PA6. When the mass fraction of multi-layer graphene was 2.5%, the tensile strength and elastic modulus of PA6 increased by 11.4% and 29.3%, respectively. There was no effect on the impact strength of PA6 when the mass fraction of graphene was 2%.
【作者单位】：江门职业技术学院;
【基金】：广东省江门市科技计划项目(江财工[2016]143号)
【分类号】：TB332;TQ342.11

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