【摘要】：碳納米管涂層已在低溫工作環(huán)境中大量應(yīng)用,所選用的粘結(jié)劑在很大程度上影響其紅外吸收性能及與基體的結(jié)合性能。分別用水玻璃粘結(jié)劑和磷酸鹽粘結(jié)劑與碳納米管、鎳粉混合制成涂料,并將其涂覆在銅基體表面。采用XRD和SEM對涂層的紅外吸收性能、物相、晶體結(jié)構(gòu)及形貌進(jìn)行了表征;測試了涂層的抗熱震性能。結(jié)果表明:當(dāng)粘結(jié)劑為磷酸鹽、含量為90%~85%時,1 400~3 570 cm~(-1)(2.80~7.14μm)波段內(nèi)涂層的平均光吸收度達(dá)1.992~2.084,紅外吸收性能最佳,抗熱震次數(shù)可達(dá)35次(25~120℃),滿足了用戶要求(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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