不同粘结剂对碳纳米管红外吸收涂层性能的影响

发布时间：2018-08-11 16:18

【摘要】：碳纳米管涂层已在低温工作环境中大量应用,所选用的粘结剂在很大程度上影响其红外吸收性能及与基体的结合性能。分别用水玻璃粘结剂和磷酸盐粘结剂与碳纳米管、镍粉混合制成涂料,并将其涂覆在铜基体表面。采用XRD和SEM对涂层的红外吸收性能、物相、晶体结构及形貌进行了表征;测试了涂层的抗热震性能。结果表明:当粘结剂为磷酸盐、含量为90%~85%时,1 400~3 570 cm~(-1)(2.80~7.14μm)波段内涂层的平均光吸收度达1.992~2.084,红外吸收性能最佳,抗热震次数可达35次(25~120℃),满足了用户要求(10次)。
[Abstract]:Carbon nanotubes (CNTs) coatings have been widely used in low temperature working environment. The selected binder greatly affects the infrared absorption properties and the binding properties of CNTs to the substrate. The coating was prepared by mixing sodium silicate binder and phosphate binder with carbon nanotubes and nickel powder respectively and coated on the surface of copper substrate. The infrared absorption, phase, crystal structure and morphology of the coating were characterized by XRD and SEM, and the thermal shock resistance of the coating was tested. The results show that when the binder is phosphate and the content of the binder is 90 ~ 85, the average light absorption of the coating in the band of 1 400 ~ 3 570 cm ~ (-1) (2.80 ~ 7.14 渭 m) is 1.992m2.084, the infrared absorption is the best, the times of thermal shock resistance can reach 35 times (25120 鈩，

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