胶粘剂用量对CR/玻纤布复合胶布粘接性能的影响

Effect of Adhesive Content on Bonding Properties of CR Coated Fiberglass Cloth

针对氯丁橡胶(CR)和玻纤布压延成的薄层复合胶布,研究了玻纤布涂覆胶粘剂的用量对复合胶布层间粘合强度和拉伸剪切强度的影响。结果表明,随着玻纤布上胶量的逐渐增多,复合胶布的层间粘合强度和拉伸剪切强度先提高后降低,当胶粘剂用量为20%时,达到峰值;SEM照片显示,不同上胶量复合胶布的破坏界面呈现出明显的差异,阐明了胶布的层间粘合强度和拉伸剪切强度所呈变化趋势的原因;玻纤布、CR及复合胶布层间粘合破坏界面的的红外谱图与SEM照片吻合,进一步证明了复合胶布的层间粘合强度和拉伸剪切强度变化的趋势。

The influence of the amount of fiberglass cloth coating adhesive on the interlayer bonding strength and tensile shear strength of the thin rubberized fiberglass cloth was studied and analyzed.The results showed that with the increase of the adhesive content,the interlayer adhesion strength and tensile shear strength of rubberized cloth increased first and then decreased,and reached the peak value when the adhesive content was 20%.The SEM photos showed that,the failure interface of the adhesive samples with different adhesive content showed obvious differences,which clarified the reasons for the change trend of the adhesive strength and tensile shear strength.The infrared spectra of fiberglass cloth,CR and the interlayer adhesion failure interface of rubberized cloth were consistent with the SEM photos,which further proved the trend of the interlayer adhesion strength and tensile shear strength of the rubberized cloth.