聚氨酯基防护材料的制备与辐照效应分析  

Preparation and irradiation effect analysis of polyurethane-based protective material

作　　者：李明哲 马壮[1,2,3] 高丽红 LI Mingzhe;MA Zhuang;GAO Lihong(School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;National Key Laboratory of Science and Technology on Materials under Shock and Impact,Beijing 100081,China;Tangshan Research Institute,Beijing Institute of Technology,Tangshan 063000,China)

机构地区：[1]北京理工大学材料学院,北京100081 [2]冲击环境材料技术国家级重点实验室,北京100081 [3]北京理工大学唐山研究院,河北唐山063000

出　　处：《电镀与涂饰》2023年第16期1-7,共7页Electroplating & Finishing

基　　金：国家自然科学基金(52073029);山西省科技创新人才团队项目(202204051001001)。

摘　　要：随着激光技术的快速发展,激光防护材料的重要性日益增加。烧蚀型激光防护涂层因耗散能力强而受到了广泛关注,但目前基于有机体系的烧蚀型防护材料主要聚焦于高残炭率树脂,而低残炭率树脂作为激光防护材料的研究报道较少。本文制备了聚氨酯-氧化锆(PU–ZrO_(2))激光防护材料,并使用高能连续激光进行了辐照试验。在激光功率密度500 W/cm^(2)的条件下,该材料具备10 s的防护能力,背表面温度低于100℃。另为探索其在复合材料中的应用,利用玻璃纤维(GF)制备了PU–ZrO_(2)–GF体系材料,它在500 W/cm^(2)的激光功率密度下具备5s的防护能力,背表面温度低于30℃。With the rapid development of laser technology,the materials for laser protection are more and more important.Ablative anti-laser coatings have been widely concerned because of their high dissipation capacity.At present,the ablative protective materials based on organic systems mainly focus on the resin with high carbon residue rate,while there is a paucity of literature on the resin with low carbon residue rate as anti-laser material.In this paper,a polyurethane–zirconia(PU–ZrO_(2))anti-laser material was prepared.The results of continuous high-energy laser irradiation experiments showed that PU–ZrO_(2) material endured 10 seconds of laser irradiation at a power density of 500 W/cm^(2) with a back surface temperature lower than 100℃.To explore its application in composite materials,a PU–ZrO_(2)–GF(glass fiber)composite was also prepared and it endured 5 seconds of laser irradiation at a power density of 500 W/cm^(2) with a back surface temperature lower than 30℃.

关 键 词：激光防护 烧蚀 聚氨酯 氧化锆 玻璃纤维 复合材料 热稳定性 背表面温度 

分 类 号：TJ95[兵器科学与技术—武器系统与运用工程]