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研究了RE/A,RS/A,RS/RH,RE/RH,RH等粘合剂体系对天然橡胶硫化特性、物理机械性能、动态热力学性能的影响。结果表明:RS/RH,RE/RH,RH胶料的硫化速度明显较快,最大转矩和其硫化胶的拉伸强度、硬度及定伸应力都显著地高于对照(不加粘合剂),几种橡胶拉断伸长率均不同程度地小于对照,添加粘合剂的胶料其橡胶与织物附着强度远远大于对照,其中RE/RH胶料最大;对照和添加RE/A胶料的弹性模量(E’)、损耗模量(E″)和损耗因子(tanδ)明显最大,其次是RS/RH,RH/RE,RS/A,最低是RH胶料;对照和添加复合胶粘剂橡胶的玻璃化转变温度(Tg)分别为-53.5,-50.4,-54.6,-55.2,-55.8和-56.4℃;各胶料分子链段运动活化能(△H)按上述排列分别为150.6,268.6,163.5,151.6,148.7和113.4kJ/mol。
The effects of RE / A, RS / A, RS / RH, RE / RH and RH binder systems on vulcanization, physical and mechanical properties and dynamic thermodynamic properties of natural rubber were studied. The results show that the vulcanization speed of RS / RH, RE / RH and RH compounds is obviously faster, the maximum torque and the tensile strength, hardness and tensile stress of vulcanizates are significantly higher than those of the control ), The elongation at break of several kinds of rubber are less than the control to some extent, the adhesive strength of rubber and fabric is much larger than the control, the RE / RH rubber is the largest; the control and the addition of RE / A glue The elastic modulus (E ’), loss modulus (E ") and loss factor (tan δ) of the material were the largest, followed by RS / RH, RH / RE and RS / A, The glass transition temperatures (Tg) of the adhesive rubber were -53.5, -50.4, -54.6, -55.2, -55.8 and -56.4 ° C, respectively. The kinetic activation energy (△ H) , 268.6, 163.5, 151.6, 148.7 and 113.4 kJ / mol.