在改进像框实验的基础上,对斜纹和缎纹预定型碳纤维织物的剪切性能进行了实验观察.研究发现,预定型机织物的剪切机制与织物剪切相似.根据实验结果,从定型剂的浓度和织物结构分析了预定型织物的剪切性能.随着定型剂浓度提高,织物的折皱角越大,织物剪切性能越差;与预定型斜纹织物相比,预定型缎纹织物相对较容易成型,剪切载荷较小.利用立式显微镜观察剪切过程中纱线宽度的变化,拟合得到了宽度变化方程,建立预定型机织物的折皱角模型,预测结果与实验结果误差在2°内,证明了该模型的有效性.
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