Natural rubber (NR) is the most preferred raw material for both tyre and non-tyre applications, which require good adhesion performance. It has a naturally sticky character to provide green tack. However, it has limitations to improve adhesion further due to its relatively low reactivity. In this study, epoxidised natural rubber (ENR) has been evaluated as an adhesion promoter for NR based model tyre compounds. ENR based adhesive compounds were prepared by blending NR with ENR in various ratios. Rheological, physical, and mechanical properties of NR/ENR compounds were studied. Sufficient cure rate and cure extent were achieved for elevated curing temperatures. The adhesion performance was measured with the T-peel adhesion test. In addition, thermodynamic work of adhesion (TWA) was calculated by using the surface free energy components of the compounds. The correlation between adhesion force and TWA was evaluated together with vulcanisation kinetic parameters in order to understand the adhesion mechanism. ENR incorporation was found to improve adhesion between selected tyre compounds, remarkably.

天然橡胶（NR）是轮胎和非轮胎应用的首选材料，它们需要良好的粘合性能。它具有自然发粘的特性，可提供绿色粘性。然而，由于其相对低的反应性，它具有进一步提高粘合性的局限性。在这项研究中，环氧化天然橡胶（ENR）已被评估为基于NR的模型轮胎胶料的粘合促进剂。通过将NR与ENR以各种比例混合来制备基于ENR的胶粘剂。研究了NR / ENR化合物的流变，物理和机械性能。对于升高的固化温度，获得了足够的固化速率和固化程度。粘合性能通过T-剥离粘合力测试来测量。此外，通过使用化合物的表面自由能组分，计算了粘合的热力学功（TWA）。为了了解粘附机理，对粘附力和TWA之间的相关性以及硫化动力学参数进行了评估。发现掺入ENR可显着改善所选轮胎胶料之间的粘合力。