高流动性尼龙6/改性MCA阻燃复合材料的性能*

doi:10.11901/1005.3093.2014.357

材料研究学报

2015, Vol. 29

Issue (5): 365-370 DOI: 10.11901/1005.3093.2014.357

本期目录 | 过刊浏览

高流动性尼龙6/改性MCA阻燃复合材料的性能*

魏珊珊(

),谢翔,王乐宇,喻慕琳,陈宪宏

湖南工业大学包装与材料工程学院株洲 412007

Properties of High Flow-ability Nylon 6/Modified MCA Flame Retardant Composites

Shanshan WEI(

),Xiang XIE,Leyu WANG,Mulin YU,Xianhong CHEN

College of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, China

引用本文:

魏珊珊,谢翔,王乐宇,喻慕琳,陈宪宏. 高流动性尼龙6/改性MCA阻燃复合材料的性能*[J]. 材料研究学报, 2015, 29(5): 365-370.
Shanshan WEI, Xiang XIE, Leyu WANG, Mulin YU, Xianhong CHEN. Properties of High Flow-ability Nylon 6/Modified MCA Flame Retardant Composites[J]. Chinese Journal of Materials Research, 2015, 29(5): 365-370.

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摘要:

将氧化石墨烯(GO)改性的三聚氰胺氰尿酸盐(mMCA)、未改性的三聚氰胺氰尿酸盐(MCA)分别与高流动性尼龙6(HFPA6)熔融共混, 制备出HFPA6/mMCA复合材料和HFPA6/MCA复合材料。研究了MCA改性前后的结构、阻燃复合材料的阻燃性能、热稳定性和力学性能, 结果表明: HFPA6/mMCA复合材料的阻燃性能、拉伸强度、弯曲强度和成炭效果比HFPA6/MCA复合材料有很大的提高, 冲击强度略有降低, 在阻燃剂含量为14%时复合材料的阻燃性能达到UL 94 V-0级。

关键词 ：复合材料, 高流动性尼龙6, 三聚氰胺氰尿酸盐, 氧化石墨烯, 阻燃性能

Abstract：

HFPA6/mMCA and HFPA6/MCA composites were prepared by means of molten blending the high flow-ability polyamide 6 (HFPA6) with the graphene oxide modified melamine cyanuric (mMCA) and the unmodified melamine cyanuric (MCA) respectively. The structure of MCA and mMCA, as well as the flame retardant properties, thermal stability and mechanical properties of the two HFPA 6 composites were characterized. Results show that the flame retardancy, tensile strength, flexural strength and charring of the HFPA6/mMCA composite are superior to that of the HFPA 6/MCA composite, while the impact strength of HFPA6/mMCA composite is slightly lower. When the content of flame retardants mMCA is 14%, the flame retardancy of HFPA6/mMCA composite reaches the UL 94 V-0 rating.

Key words： composites high flow-ability nylon 6 melamine cyanurate graphene oxide flame retardancy

收稿日期: 2014-07-15

基金资助:^*国家自然科学基金51343001、51374102和湖南省高校创新平台开放基金12K114资助项目。

作者简介: 魏珊珊，教授

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表1 HFPA复合材料样品及其组成

图1 GO、MCA和mMCA的红外光谱图(a: GO, b: MCA, c: mMCA)

图2 GO、MCA和mMCA的XRD曲线(a: GO, b: MCA, c: mMCA)

表2 HFPA6复合材料的阻燃性能

图3 不同MCA含量HFPA6/MCA复合材料的TG曲线

图4 不同MCA含量HFPA6/MCA复合材料的DTG曲线

图5 不同mMCA含量HFPA6/mMCA复合材料的TG曲线

图6 不同mMCA含量HFPA6/mMCA复合材料的DTG曲线

图7 复合材料拉伸强度与阻燃剂含量的关系

图8 复合材料冲击强度与阻燃剂含量的关系

图9 复合材料弯曲强度与阻燃剂含量的关系

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