综述了高拉伸强度高延伸率丁羟弹性体的几种改性方法。用自制的二聚脂肪酸二异氰酸酯(DDI)为固化剂制备的丁羟弹性体胶片具有优异的力学性能,最大拉伸强度达9.02 MPa,该强度下的延伸率达1 000%。指出以DDI为高性能固化剂的“DDI固化体系”是制备高拉伸强度高延伸率丁羟弹性体最为有效的途径,使用具有不同官能度的液体端羟基聚丁二烯进行复配的“丁羟双模体系”将是高强度高延伸率丁羟推进剂的主要研究方向。 Several modification methods of high elongation high elongation elastomers are reviewed. Butadiene-rubber elastomers prepared with self-made dimerized fatty acid diisocyanate (DDI) have excellent mechanical properties with a maximum tensile strength of 9.02 MPa and an elongation of 1000% at this strength. It is pointed out that the DDI curing system with DDI as the high performance curing agent is the most effective way to prepare high tensile strength and high elongation butyrolactone by using liquid hydroxyl terminated polybutadiene with different functionalities “Butadiene hydroxy double system ” will be the main research direction of high strength and high elongation butyrolactone.