China Plastics ›› 2021, Vol. 35 ›› Issue (9): 122-127.DOI: 10.19491/j.issn.1001-9278.2021.09.019

• Plastic and Environment • Previous Articles     Next Articles

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

LIU Pingping(), LU Huan, ZHU Lifang, DING Yongzhi()   

  1. AVIC Special Vehicle Research Institute,Hubei Jingmen 448035,China
  • Received:2021-03-05 Online:2021-09-26 Published:2021-09-23

Abstract:

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 URETEK?5972 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 URETEK?5972 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.

Key words: coating agent, skin material, natural environment, functional layer, free carbonyl group, intermolecular force

CLC Number: