改性氧化石墨烯/聚氨酯复合包覆层的制备与性能测试

赵刘明, 陈腾, 李万辉, 李枭铭, 李强, 王庆华, 郭双锋, 姜炜

火炸药学报 ›› 2018, Vol. 41 ›› Issue (6) : 567-572.

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  • 主管：中国科学技术协会

    主编：魏 卫

    ISSN 1007-7812

    　

  • 主办：中国兵工学会与中国兵器工业第204研究所共同

    出版：《火炸药学报》 编辑部

    CN 61-1310/TJ

《火炸药学报》1978年创刊，国内外公开发行。是由中国科协主管、中国兵工学会与中国兵器工业第二〇四研究所共同主办的学术刊物, 是我国创刊最早的火炸药技术专业期刊。
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火炸药学报 ›› 2018, Vol. 41 ›› Issue (6) : 567-572. DOI: 10.14077/j.issn.1007-7812.2018.06.006

改性氧化石墨烯/聚氨酯复合包覆层的制备与性能测试

  • 赵刘明, 陈腾, 李万辉, 李枭铭, 李强, 王庆华, 郭双锋, 姜炜
作者信息 +

Preparation and Properties Test of the Modified Graphene Oxide/Polyurethane Composite Coating Layer

  • ZHAO Liu-ming, CHEN Teng, LI Wan-hui, LI Xiao-ming, LI Qiang, WANG Qing-hua, GUO Shuang-feng, JIANG Wei
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摘要

为提升固体推进剂中聚氨酯包覆层的耐热性能并降低残渣率，对原有包覆层体系进行了改性研究；用异佛尔酮二异氰酸酯（IPDI）改性氧化石墨烯；采用XRD、FT-IR和Raman光谱对改性后的氧化石墨烯（MGO）进行了表征；分析了MGO在3种有机溶剂（正庚烷、乙酸正丁酯和N，N-二甲基甲酰胺）中的分散性；以溶液共混法制备了改性氧化石墨烯（MGO）/聚氨酯复合包覆层材料，并测试了其力学性能、耐烧蚀性能和残渣率。结果表明，经过IPDI改性后，MGO在DMF和乙酸正丁酯中有较好的分散效果；相较于原聚氨酯包覆层材料，MGO质量分数为5%的复合聚氨酯包覆层表现出更好的使用性能，其50%定伸应力提高31.85%，拉伸强度下降5.25%，线烧蚀速率和残渣率分别降低34.10%和17.71%，表明使用性能有明显提高。

Abstract

To improve the heat resistance of polyurethane coating layer in solid propellant and decrease the residue rate, the original coating layer system was modified. Graphene oxide was modified by isophorone diisocyanate (IPDI). The modified graphene oxide (MGO)was characterized by XRD, FTIR and Raman spectra. The dispersity of MGO in three kinds of organic solvents (n-heptane, n-butyl acetate and N, N-dimethylformamide(DMF)) was analyzed. MGO/polyurethane composite coating layer were prepared by solution blending method. Its mechanical properties, ablation resistance performance and residue rate were tested. The results show that MGO has good dispersion effect in DMF and n-butyl acetate after modified by IPDI. Polyurethane coating layer composites with the incorporation of 5% of MGO shows better properties. When compared with the original polyurethane coating layer, its 50% modulus increase by 31.85% and tensile strength decrease by 5.25%. The linear ablation rate and residue rate decrease by 34.10% and 17.71%, respectively, which means that the service performances are significantly improved.

关键词

物理化学 / 改性氧化石墨烯 / MGO / 聚氨酯包覆层 / 异佛尔酮二异氰酸酯 / IPDI / 线烧蚀率

Key words

physical chemistry / modified graphene oxide / polyurethane coating layer / isophorone diisocyanate / IPDI / linear ablation rate

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赵刘明, 陈腾, 李万辉, 李枭铭, 李强, 王庆华, 郭双锋, 姜炜. 改性氧化石墨烯/聚氨酯复合包覆层的制备与性能测试. 火炸药学报. 2018, 41(6): 567-572 https://doi.org/10.14077/j.issn.1007-7812.2018.06.006
ZHAO Liu-ming, CHEN Teng, LI Wan-hui, LI Xiao-ming, LI Qiang, WANG Qing-hua, GUO Shuang-feng, JIANG Wei. Preparation and Properties Test of the Modified Graphene Oxide/Polyurethane Composite Coating Layer. Chinese Journal of Explosives & Propellants. 2018, 41(6): 567-572 https://doi.org/10.14077/j.issn.1007-7812.2018.06.006
中图分类号： TJ55    O64   

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