Effect of modified aramid nanofiber on compatibilization of natural rubber/epoxidized natural rubber composites

The combination of natural rubber(NR)with epoxidized natural rubber(ENR)could improve the wet slid resistance,mechanical properties,abrasion resistance and thermo-oxidative aging resistance of NR,which showed important research significance.Aramid nanofiber,as a new nano filler for polymer developed in recent years,had the advantages of both macroscopic fibers and polymer nanomaterials.The NR/ENR composites were prepared by dry mixing with NR and the pre-composite prepared from ENR latex and the modified aramid nanofibers(t-ANF).

变温变压硫化装置设计及其应用研究

根据活塞原理设计变温变压硫化装置,并应用该装置研究硫化温度及硫化压力对天然橡胶胶料基本物理性能的影响规律。结果表明本研究设计的模具可以实现变温变压硫化,并得出胶料硬度和弹性模量随硫化温度的升高先升高后下降、随硫化压力的增大呈增高趋势的结论。

高强度双曲囊空气弹簧内囊的研制

通过分析空气弹簧内囊胶料的组成,研制出了以硫黄+促进剂(S+DM+TMTD)为硫化体系、高耐磨炭黑N330为增强体系的天然橡胶/氯丁橡胶并用胶料。采用将产品分成几个部分先硫化成型、然后粘接再硫化的工艺,制备了空气弹簧内囊制品。该型制品具有高强度及良好耐屈挠性能,能在某型设备上成功使用,用户感到满意。