可低温使用的低模量弹性材料研究

Study on low modulus fexibility material using at low temperature

主要从低温剪切性能(-30℃)和粘接性能两方面,对硅橡胶、氯丁/顺丁橡胶并用和天然橡胶低温改性三种方案进行性能比较,优选弹性材料橡胶基材。在此基础上对优选方案进行配方细化,并对低模量弹性材料进行低温剪切性能和粘接性能分析。实验结果表明,天然橡胶低温改性方案在保持天然橡胶优异的粘接性能基础上,明显改善天然橡胶-30℃时的剪切性能,取得了较理想的改性效果。

This paper is to optimize flexibility rubber material from silicone rubber,chloroprene rubber and butadiene rubber blends or modified nature rubber,according to their shear property at low temperature （ - 30℃ ）and adhesive strength. Then it details the optimization formulation and analyzes its properties.The experiment result shows the shear property at - 30℃ of modified nature rubber could be improved significantly on the basis of keeping excellent adhesion of nature rubber.