摘要
采用预聚体法,以聚环氧丙烷醚二醇、4,4-二苯基甲烷二异氰酸酯、1,4-丁二醇为原料,羧甲基纤维素钠改性的电化学法石墨烯(GN)为填料,制备了聚氨酯弹性体(PUE)/GN复合材料,并对PUE/GN复合材料进行了测试与表征。结果表明:GN在PUE基体中分散良好,与基体的相容性良好;与PUE相比,PUE/GN复合材料的热性能、力学性能显著提高,当掺杂0.10%(w)的GN时,PUE/GN复合材料的拉伸强度和撕裂强度分别达到38.64 MPa,97.79 kN/m,质量损失5%时的温度提高20℃。
Poly(propylene oxide ether glycol),4,4-diphenylmethane diisocyanate,1,4-butanediol were used as raw materials,electrochemical graphene(GN)modified by sodium carboxymethyl cellulose as filler to prepare polyurethane elastomer(PUE)/GN composites via a prepolymer method.The PUE/GN composites were characterized.The results show that GN is dispersed evenly in PUE matrix and compatible well with the matrix.The thermal properties and mechanical propeties of the composites are significantly improved.When the mass fraction of graphene doped is 0.10%(w),the tensile strength and tear strength of the composites reach 38.64 MPa and 97.79 kN/m,respectively,and the temperature is increased by 20℃when the mass loss is 5%.
作者
陈乾
李晓云
赵雨花
亢茂青
王军威
Chen Qian;Li Xiaoyun;Zhao Yuhua;Kang Maoqing;Wang Junwei(Laboratory of Applied Catalysis and Green Chemical Engineering,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China;School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《合成树脂及塑料》
CAS
北大核心
2023年第1期21-25,共5页
China Synthetic Resin and Plastics
基金
山西省青年基金(201901D211586)
国家自然科学基金(52003286)
兰州市科技计划项目(2020-2-2)
山西省重大科技项目(20181101012)。
关键词
石墨烯
聚氨酯弹性体
力学性能
低掺杂
热稳定性
graphene
polyurethane elastomer
mechanical property
low doping
thermal stability
