自然环境对浮空器蒙皮材料涂层剂性能的影响研究  

Study on the Effect of Natural Environment on Coating Agent Performance of Aerostat Skin Materials

作　　者：刘平平 卢欢 朱李芳 丁永志 LIU Pingping;LU Huan;ZHU Lifang;DING Yongzhi(AVIC Special Vehicle Research Institute,Hubei Jingmen 448035,China)

机构地区：[1]中国特种飞行器研究所,湖北荆门448035

出　　处：《中国塑料》2021年第9期122-127,共6页China Plastics

摘　　要：涂层剂是蒙皮材料的重要组成部分,直接影响蒙皮材料的力学性能。为揭示自然环境作用下蒙皮材料中涂层剂的性能变化规律,以暴露不同时长的URETEK-5972材料为研究对象,利用压差法气体渗透仪、红外光谱仪、力学试验机等进行测试,分析自然环境暴露时间(0~4年)对材料功能层性能的影响,找出涂层剂的变化规律。结果表明,随着自然环境暴露时间的增加,涂层剂中的游离态羰基比例下降,与功能层分子间作用力呈下降的趋势,导致各功能层之间连接牢度降低。Coating agent is an important part of skin material,which directly affects the mechanical properties of skin materials.In order to understand a change rule in the properties of coating agent in skin materials under the natural environment.Taking the URETEK5972 material as research object,this material was exposed to the natural environment for 0 to 4 years.The characteristic functional groups and mechanical properties of the URETEK5972 were characterized using Gas permeameter and infrared spectrometer and mechanical testing machine.The influence of exposure time under the natural environment on the performance of functional layer was analyzed,and the change rule of coating agent was explored.The results indicated that the proportion of free carbonyl group in the coating agent decreased with an increase in natural environment exposure time.The intermolecular force between the coating agent and functional layers decreased,leading to a reduction in the connection fastness between the functional layers.

关 键 词：涂层剂 蒙皮材料 自然环境 功能层 游离态羰基 分子间作用力 

分 类 号：V25[一般工业技术—材料科学与工程]