Research of synthesis and properties of polyurethane damping materials with multiple side methyl structures

2018 3rd International Conference on Insulating Materials, Material Application and Electrical Engineering

材料科学;无线电电子学;电工学

Zhou, Haijun^1 ; Zhou, Mengmeng^1,2 ; Zhang, Xiaolei^3 ; Chen, Xiaoqi^1 ; Yang, Shulan^1 ; Li, Yantao^1

Institute of Energy Source, Hebei Academy of Sciences, Shijiazhuang

050000, China^1

School of Materials Science and Engineering, Hebei University of Technology, Tianjin

300401, China^2

Hebei University of Science and Technolog, Shijiazhuang

050000, China^3

关键词: 2 ,4-toluene diisocyanate;    Chain extenders;    Comprehensive properties;    Damping capacity;    Damping material;    Isophorone diisocyanate;    Soft and hard segments;    Temperature range;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/452/2/022059/pdf
DOI  :  10.1088/1757-899X/452/2/022059

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this paper, the poly 3,3'-dimethylglutaric acid neopentane diol ester and poly (3,3'-dimethyl glutaric acid 1115 ester) were synthesized. The PU damping material was obtained by preparing prepolymer synthesized with above materials and 2,4-toluene diisocyanate or isophorone diisocyanate, and taking 3,3'-di chlorine-4,4'-diamino double phenyl methane as chain extender. The effects of various soft and hard segments on the mechanical properties and damping capacity of PU damping materials were investigated. The results showed that the tensile strength of the prepared PU damping material is above 15MPa, and the tan δ max reaches more than 0.95. The damping temperature range of tan delta >0.3 is more than70°C, which is a kind of damping material with excellent comprehensive properties.