摘要
针对3个制件(西南区域失效件:重庆件;华南失效件:广州惠州件和正常人为破坏件)分别使用傅里叶红外光谱仪、超景深显微镜和扫描电子显微镜3种仪器对它们进行观察并作对比分析,同时也分析了清洁溶剂异丙醇对支架的影响。结果表明,清洁溶剂异丙醇对支架的影响极小;2个失效件的底涂部位和脱胶部位有不同程度的缺陷和裂纹,说明黏结部位的界面结合力降低是支架脱落的直接原因;底涂的厚度对支架的界面结合力有较大的影响。
The three car front class brackets,including a failure bracket from Chongqing,Southwest China,a failure bracket from Guangzhou,South China and a normal man-made damaged bracket,were observed and comparatively analyzed using Fourier transform infrared spectrometer,depth-of-field microscope and scanning electron microscope.The effect of isopropanol on the brackets was also investigated.The results indicated that isopropanol had little effect on the brackets.There were different degrees of defects and cracks in the bottom coating part and the degumming part of the two failed brackets,indicating a decrease in the interface binding force of the bonding parts.This directly resulted in the falling off of scaffold.The thickness of the base coat had a great influence on the interface adhesion of the bracket.
作者
盛磊辉
马昱吉
黄明
陆波
刘春太
张娜
SHENG Leihui;MA Yuji;HUANG Ming;LU Bo;LIU Chuntai;ZHANG Na(Key Laboratory of Materials Processing and Mold of Ministry of Education,Zhengzhou University,Zhengzhou 450002,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2021年第4期18-22,共5页
China Plastics
基金
宁波科技创新2025重大专项(2019B10117)
广西重点研发计划(AB19259014)。
关键词
支架
底涂
异丙醇
脱胶
结合强度
bracket
shedding behavior
isopropanol
bonding strength
primer thickness
