橡胶改性双组分聚硫密封胶的研制

介绍了聚硫密封胶的应用前景，提出了双组分聚硫密封胶目前存在的问题，简述了橡胶改性双组分聚硫密封胶的制备方法，根据检测结果分析影响橡胶改性双组分聚硫密封胶物理性能的各种因素。实验表明：适量添加橡胶改性剂，控制聚硫橡胶与橡胶改性剂的比例，增加填料的用量，降低了成本，提高了双组分聚硫密封胶的储存稳定性和抗流挂效果，解决了双组分聚硫密封胶弹性恢复率长期不达标的难题，改善了双组分聚硫密封胶的物理性能。

Research on Two-component Rubber Modified Polysulfide Sealant

The application prospects of polysulfide sealant are described,the existing problems about two-component polysulfide sealant are presented,and the preparation method of two-component polysulfide sealant modified by rubber is introduces concisely,then various factors which affect its physical properties are analyzed according to the test.The results show that,adding the right amounts of rubber modifier,controlling the ratio of polysulfide rubber to rubber modifier and increasing the amount of filler can not only reduce costs but also improve the storage stability and anti-sagging effect of two-component polysulfide sealant.This technology solves the problem of poor elastic recovery rate and improves physical properties of two-component polysulfide sealant.