【摘要】：鑒于黏彈性阻尼材料在建筑結構抗震減震及抗風方面的重要性,以丁腈橡膠為基體、基于DMA法,首先考察了氯化聚丙烯(CPP)、短碳纖維(CARB)、200目石墨粉(GRAP)、鱗片石墨(FLAKE)、云母粉(MICA)等與基體材料共混物的基本力學性能,其次研究了摻合劑對基體材料的影響,并給出了組分比對基體膠阻尼性能的影響效果對比分析。研究結果滿足了兩個設計要求:1.改進了材料的阻尼性能,使損耗因子提高至1.26;2.使原材料的溫位Tg從28.2℃調整至15℃左右,并大大拓展了tanδ0.5的溫域。并且研究發(fā)現,單純添加200目石墨粉的效果最佳,粒徑大的炭黑類材料如高耐磨炭黑(FEF)和軟質快壓出炭黑(HAF)對NBR材料的改進效果不大。
[Abstract]:In view of the importance of viscoelastic damping materials in seismic and wind resistance of building structures, nitrile butadiene rubber (NBR) is used as the matrix and based on DMA method. The basic mechanical properties of chlorinated polypropylene (CPP),) short carbon fiber (CARB) mesh graphitic powder (GRAP),) flake graphite (FLAKE),) mica powder (MICA) with matrix materials were investigated, and the effect of admixture on matrix materials was studied. The effect of the component ratio on the damping property of the matrix adhesive was compared and analyzed. The results meet two design requirements: 1. 1. The damping property of the material is improved, and the loss factor is raised to 1.26 ~ 2. The temperature potential Tg of raw materials was adjusted from 28.2 鈩，

本文編號：2240569