PVA-KH560水溶性粘合剂对烟火药薄膜燃烧及辐射性能的影响

Effects of PVA-KH560 Water-Soluble Based Adhesives on the Combustion and Radiation Performance of Pyrotechnic Film

为避免烟火药薄膜制备中采用大量有机溶剂带来的安全问题,采用聚乙烯醇(PVA)和硅烷偶联剂(KH560)以1∶1混合制备PVA-KH560水基粘合剂,选择3组不同水溶性材料的烟火药配方,分别用水基粘合剂和氟橡胶粘合剂制备成烟火药薄膜。利用T1050SC红外热像仪和SR5000N红外光谱辐射计研究2种粘合剂烟火药薄膜的燃烧和辐射性能,并进行对比。结果表明:使用水基粘合剂制备的烟火药薄膜强度和平整性较好,与氟橡胶烟火药薄膜相比,燃烧时间长,燃烧温度略高,并且中红外波段的质量辐射能量提高。本研究表明PVA-KH560是可替代氟橡胶的潜在烟火药水基粘合剂。

To avoid the safety problems caused by the excessive usage of organic solvents in pyrotechnic film preparation,PVA-KH560 water-based adhesive was prepared by mixing polyvinyl alcohol(PVA)and silane coupling agent(KH560)with 1∶1 ratio,three series pyrotechnic composition formulations with different water solubility materials were selected,and the pyrotechnic films using water-based adhesives and fluororubber were prepared respectively.Using T1050SC infrared thermal imager and SR5000-N infrared spectral radiometer,the combustion and radiation performance of pyrotechnic films with two types of adhesives were studied and compared.The results show that the strength and flatness of the pyrotechnic film prepared with water-based adhesive are better,and compared with pyrotechnic film of fluororubber,the combustion time is longer and the combustion temperature is slightly higher,meanwhile,the quality radiation energy in the mid infrared band is improved.It can be seen that PVA-KH560 is a potential water-based adhesive replacing fluororubber adhesive for pyrotechnic composition.