碱木质素/秸秆粉/橡胶复合材料的性能研究

采用机械混炼法制备碱木质素/秸秆粉/橡胶复合材料，并对其性能进行研究。结果表明：在碱木质素与秸秆粉并用体系中，随着碱木质素用量的增大，胶料的门尼粘度增大，交联程度减小，正硫化时间延长；硫化胶的硬度和回弹值减小，拉伸强度和拉断伸长率增大，耐磨性提高，耐低温性变化不大；当碱木质素/秸秆粉并用比为2∶1时，复合材料的拉伸强度最大，耐磨性最好。;The alkali lignin/straw powder/rubber composites were prepared by mechanical mixing method，and their properties were investigated.The results showed that，in the alkali lignin and straw powder blend，as the additional level of alkali lignin increased，the Mooney viscosity of the compound increased，the crosslinking degree decreased and optimum cure time was extended. At the same time，the hardness and rebound value of the vulcanizate decreased，the tensile strength and elongation at break increased，the wear resistance was improved，and low temperature resistance changed little. When the blend ratio of alkali lignin/straw powder was 2∶1，the tensile strength of the composites reached the maximum value，and the wear resistance was the best