摘要
与纳米粒子相比,极小粒子价格低廉且性能稳定,是增大聚氨酯材料的阻尼耗能能力并拓宽有效温域范围的有效手段。本实验选取玻璃纤维、石墨烯、T⁃ZnOw和AO⁃80四种极小粒子,根据“四因素、三水平”正交表分别对各配方制成的聚氨酯试样进行力学性能试验,以研究极小粒子对聚氨酯材料阻尼性能的影响效果。试验结果表明,玻璃纤维和AO⁃80对聚氨酯材料的损耗因子峰值及大阻尼温域范围的拓宽均具有显著的提升效果;石墨烯以极低的含量提高了聚氨酯材料的损耗因子峰值;T⁃ZnOw可提高聚氨酯材料的TA值,并拓宽其大阻尼温域,但随T⁃ZnOw含量的增大,阻尼性能指标均降低。此外,通过极差分析确定了聚氨酯材料设计优化方案:100份基体材料中加入12份玻璃纤维、0.3份T⁃ZnOw、0.3份石墨烯以及18份AO⁃80。
Compared with nano particles, minimum particles are cheap and stable, which is an effective way to increase the damping performance of polyurethane materials and broaden the effective damping temperature range. To study the effects of minimum particles on the damping properties of polyurethane materials, the mechanical properties of polyurethane samples made of glass fiber, graphene, T-ZnOw and AO-80 were tested according to the orthogonal table of "four factors and three levels". The experimental results show that the glass fiber and AO-80 have significant effect on increasing the peak of loss factor and broadening the large damping temperature range. Graphene can increase the peak of loss factor of polyurethane materials with very little content. T-ZnOw can increase the TA of polyurethane materials and widen the large damping temperature range, but with the increase of T-ZnOw content, the damping performance indexs are reduced. In addition, the design optimization of polyurethane materials was determined through analysis of extremely poor: 12 glass fibers, 0.3 T-ZnOw, 0.3 graphene and 18 AO-80 were added to 100 matrix materials.
作者
苏毅
李婷
李爱群
SU Yi;LI Ting;LI Aiqun(School of Civil Engineering,Nanjing Forestry University,Nanjing 210037,China;School of Civil Engineering,Southeast University,Nanjing 210096,China;School of Civil Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2021年第4期4205-4209,共5页
Materials Reports
关键词
聚氨酯
极小粒子
正交试验
阻尼性能
polyurethane
minimum particles
orthogonal test
damping performance