【摘要】 对自制烯丙基双酚 A改性双马树脂 (BMI/ O,O′- DPA)中高温和受冲击时的拉伸和压缩力学性能进行了实验研究 ,结果表明 ,材料在中高温时存在 50℃和 95℃两个转化温度 ,该材料具有较好的中高温力学性能和承压能力、抗压缩冲击韧性 ,其拉伸和压缩力学性能相差较大。给出了材料计及应变压缩本构方程更多还原

【Abstract】 The study of bismaleimide′s property is very active now. In this paper, the tensile mechanical properties of bismaleimide modified by O,O′ dially phen A(BMI/O,O′ DPA) at middle high temperature and low rate loading and its compression mechanical properties at low rate loading are experimented on. The results show that the material has better mechanical properties at middle high temperature and compression impact resistance toughness relatively. And it has two transforming temperatures, 50 ℃ and 95 ℃ approximately. The compression constitutive equation related to strain rate for it is derived. The study may be actually useful in engineering, for the improvement of material properties and the further theory studies.更多还原