中文摘要：

为了近似表征芳纶纤维增强橡胶复合材料界面的黏弹性性能,制备了不同胶乳含量的间苯二酚甲醛-丁苯吡胶乳共混（RFL）胶膜。实验研究了胶膜的拉伸性能和松弛性能。分别采用基于Burgers模型的单向拉伸和三维各向同性理论模型表征松弛模量,并拟合得到理论模型的参数。实验结果表明,胶膜的拉伸力学行为具有明显的非线性特征。不同胶乳含量下,胶膜的松弛规律相同,松弛模量初时下降较快,之后迅速趋于平稳。RFL胶膜的静态性能随着胶乳含量的增加而降低,抗松弛性能随胶乳含量的增加而先增后减,合适的预缩合酚醛树脂-丁苯吡胶乳（RF/L）干质量比约为24∶100。胶膜的2种理论模型均能较好地表征胶膜松弛的初始阶段,但在试验0.5 h后理论拟合的松弛速率与实验有明显差异。提出了胶膜三维各向同性理论模型中体积模量的估算方法,选取主弹性模量稳定值的1.01倍对应的体积模量作为计算依据。

英文摘要：

In order to characterize the viscoelasticity property of reinforced rubber composites interface of aramid fiber,the resorcinol formaldehyde-butadiene styrene vinyl-pyridine rubber latex（ RFL） adhesive films with different contents of latex were prepared. Tensile and relaxation property of adhesive films were investigated experimentally. The relaxation modulus was characterized by uniaxial tension and threedimensional isotropic models based on Burgers model respectively,and the parameters of Burgers model were obtained. Results showed that tensile mechanical behavior of the film was nonlinear. Relaxation modulus of films with different contents of latex could be correlated with the same relaxation law and declined faster at the beginning,and then quickly leveled off. The static mechanical properties of RFL adhesive films weakened as the content of latex increased. The anti-relaxation property first increased and then decreased with the increase in the content of latex. The optimal value was obtained when dry mass ratio of precondensed phenolic resin-pyridine-styrene-butadiene rubber latex（ RF / L） reached 24 ∶100. Both theoretical models characterized the initial stage of relaxation process of adhesive film appropriately,but there were significant differences between the relaxation rate fitted theoretically and experimental dataobtained 0. 5 h after the experiment. With the proposed method to estimate bulk modulus of threedimensional isotropic model of film,1. 01 times of the stable elasticity was selected as the calculation basis.