摘要
为了研究镀镍石墨烯的红外消光性能,探索消光较佳的工艺条件,采用氧化还原和化学镀的方法制备了镀镍石墨烯,通过正交试验设计,以红外衰减率为评价指标,分析了各因素对镀镍石墨烯消光性能的影响,确定了红外消光较佳的工艺条件。利用烟幕箱试验,测试了镀镍石墨烯的红外透过率。基于“Lambert‑Beer”定律,通过线性拟合计算了镀镍石墨烯的平均质量消光系数,并与镀前进行了对比分析。结果表明:红外消光较佳的镀镍石墨烯的制备工艺参数为:六水合硫酸镍的浓度为20 g·L^(-1),次磷酸钠的浓度为24 g·L^(-1),柠檬酸钠的浓度为10 g·L^(-1),施镀温度为65℃。该条件下制备的镀镍石墨烯在中远红外波段均表现出非常好的红外消光能力。对于3~5μm和8~14μm红外波段,镀镍石墨烯的平均质量消光系数分别为2.38 m^(2)·g^(-1)和2.19 m^(2)·g^(-1)。与改性前的石墨烯相比,镀镍石墨烯在中远红外波段的平均质量消光系数分别提高了30%和35%,具有更广阔的应用前景。
In order to investigate the infrared extinction performance of nickel‑plated graphene and explore the best formulation,nickel‑plated graphene was prepared by the redox and chemical plating methods.The influence of various factors on the extinc‑tion performance of nickel‑plated graphene was analyzed by designed orthogonal experiments with the infrared decay rate as the evaluation index,and the optimal formulation was determined.The infrared transmittance of nickel‑plated graphene was mea‑sured in a smoke‑screen chamber test.The average mass extinction coefficient of nickel‑plated graphene was calculated by linear fitting according to the“Lambert‑Beer”law.The results showed that the optimal process parameters for the preparation of nickel‑plated graphene were:c(NiSO_(4)·6H_(2)O)=20 g·L^(-1),c(NaH_(2)PO_(2)·H_(2)O)=24 g·L^(-1),c(C_(6)H_(5)Na_(3)O_(7)·2H_(2)O)=10 g·L^(-1),c(NH4Cl)=30 g·L^(-1),pH=8-9,and plating temperature of 65℃.The nickel‑plated graphene prepared under the optimal condi‑tions exhibited good infrared extinction in both mid‑and far‑infrared wavelengths.The average mass extinction coefficients of the nickel‑plated graphene in the infrared bands of 3-5μm and 8-14μm were 2.38 m^(2)·g^(-1) and 2.19 m^(2)·g^(-1),respectively.Com‑pared with the modified graphene,the average mass extinction coefficients of nickel‑plated graphene in the mid‑infrared bands were improved by 30%and 35%,respectively,which have broader application prospects.
作者
李慧莹
王玄玉
孙淑宝
刘志龙
董文杰
LI Hui-ying;WANG Xuan-yu;SUN Shu-bao;LIU Zhi-long;DONG Wen-jie(Laboratory of Pyrotechnical Technology,Institute of NBC Defence,Beijing 102205,China;32238 Army,Nanjing 210000,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2022年第12期1213-1218,共6页
Chinese Journal of Energetic Materials
关键词
镀镍石墨烯
正交试验
红外干扰
烟幕
质量消光系数
nickel‑plated graphene
orthogonal test
infrared interference
smoke screen
mass extinction coefficient
