This study investigates the shape memory behavior of epoxy-based pultruded flat laminates reinforced with unidirectional glass fibers. To evaluate the shape memory performance of the composite material, a series of tests by bending flat specimens to the shape programming angle has been conducted. The shape fixity and shape recovery ratios for the pultruded composite specimens with 90° fiber orientation constituted 78.4% and 92.6%, respectively, and 13.3% and 91.9%, for specimens with 0° fiber orientation. The results obtained in this study show that the shape fixity and recovery ratios of the composite material are only slightly dependent on the shape programming angle and the number of shape memory cycles (up to 10 cycles). The study also determined the shape fixity and shape recovery ratios for cured resin specimens, which constituted 99.7% and 98.2%, respectively. To lay the foundation for further studies on the simulation and optimization of the pultrusion process, the resin cure kinetics, the thermomechanical and thermophysical properties of the cured resin, and the mechanical characteristics of the pultruded shape memory polymer composite were analyzed.

本研究调查了单向玻璃纤维增​​强的环氧基拉挤扁平层压板的形状记忆行为。为了评估复合材料的形状记忆性能，通过将扁平试样弯曲到形状编程角度进行了一系列测试。90°纤维取向的拉挤复合材料试样的形状固定和形状恢复率分别为78.4%和92.6%，0°纤维取向的试样分别为13.3%和91.9%。本研究中获得的结果表明，复合材料的形状固定率和恢复率仅略微依赖于形状编程角度和形状记忆循环次数（最多 10 次循环）。该研究还确定了固化树脂样品的形状固定率和形状恢复率，其构成为 99。分别为 7% 和 98.2%。分析了树脂固化动力学、固化树脂的热力学和热物理性能以及拉挤成型的形状记忆聚合物复合材料的力学特性，为进一步研究拉挤工艺的模拟和优化奠定了基础。