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以异戊二烯、丙烯腈为单体乳液聚合制备了聚异戊二烯/丙烯腈水性黏合剂。用该黏合剂和金属填料制备了一种红外隐身水性涂料,涂刷于织物载体上,制得了织物红外隐身涂层。研究了黏合剂、金属填料及载体对涂层在8～14μm红外发射率的影响。用红外光谱仪表征了黏合剂的红外吸收,红外发射率测量仪表征了材料在8～14μm的红外发射率,热重差热分析仪表征了涂层的热稳定性,扫描电镜表征了涂层的表面形貌。研究结果表明:聚异戊二烯/丙烯腈水性黏合剂在8～14μm红外透明,能满足红外隐身涂层的要求。选用涤纶布为载体,当涂层中的片状铝粉质量分数为30%时,涂层在8～14μm的红外发射率为0.6。涂层的耐温性为341.8℃,满足红外隐身的基本要求。
Polyisoprene / acrylonitrile aqueous adhesive was prepared by emulsion polymerization of isoprene and acrylonitrile. An infrared stealth water-borne paint was prepared by using the adhesive and the metal filler. The infrared stealth coating was prepared by brushing on the fabric carrier. The influence of binders, metal fillers and carriers on the infrared emissivity of the coatings at 8 ~ 14μm was studied. Infrared absorption spectroscopy was used to characterize the infrared absorption of the adhesive. The infrared emissivity meter was used to characterize the infrared emissivity of the material at 8 ~ 14μm. The thermal stability of the coating was characterized by TG-DTA. Surface topography. The results show that: polyisoprene / acrylonitrile water-based adhesives in the 8 ~ 14μm infrared transparent, can meet the requirements of infrared stealth coating. Polyester cloth is selected as the carrier. When the mass fraction of flake aluminum powder in the coating is 30%, the infrared emissivity of the coating at 8-14 μm is 0.6. The temperature resistance of the coating is 341.8 ℃, to meet the basic requirements of infrared stealth.