改性钛酸钾晶须对硅橡胶软衬材料性能的影响

Effect of potassium titanate whisker modified silicone soft lining material properties

目的:研究经表面改性的钛酸钾晶须对硅橡胶软衬材料性能的影响。方法:将经硅烷偶联剂KH-570改性过的钛酸钾晶须按照1%、2%、3%、4%、5%的比例添加到硅橡胶软衬材料中作为实验组,未添加者作为对照组,对复合材料的邵氏硬度、拉伸强度进行测试,并计算拉伸伸长率。结果:随着钛酸钾晶须添加比例的增加,邵氏硬度也不断增长,拉伸强度及拉伸伸长率呈先上升后下降的趋势。当晶须的添加量为4%时综合性能最好,其邵氏硬度、拉伸强度、拉伸伸长率分别是(30.92±0.02)、(2.20±0.02)MPa和(365.93±4.28)%,P<0.05。结论:当钛酸钾晶须添加比为4%时,软衬材料综合性能达到最佳状态。

Objective： To study the surface- modified potassium titanate whisker on silicone soft lining material properties. Methods： The potassium titanate whisker modified by 3 % silane coupling agent KH- 570 was added to the soft silicone rubber liner material according to the proportion of 1%, 2 %, 3 %, 4 % and 5 % . not added as a control group. The Shore hardness, tensile strength were tested, and the tensile elongation was calculated. Results： With the increase of the amount of potassium titanate whisker, Shore hardness increased, tensile strength increased first and then decreased. When added in an amount of 4 % whiskers best overall performance, its Shore hardness, tensile strength, tensile elongation were （30.92 ±0.02）, （2.20 ± 0.02） MPa and （365.93 ± 4.28） % （P〈0.05）. Conclusion： When potassium titanate whisker ratio is 4 %, soft lining materials to achieve the best overall performance.