玻璃纤维织物在剪切变形作用下的渗透率

doi:10.13475/j.fzxb.20170702906

摘要/Abstract

摘要：

为研究织物剪切变形对纤维增强材料渗透行为的影响，采用真空导入模塑工艺测试玻璃纤维织物预成型体的表观渗透率。结果表明：剪切变形降低了预成型体的渗透率；对于斜纹织物，不同的剪切方向使纤维增强材料的渗透率呈现一定的差异，在剪切角为10°时，异向剪切的渗透率较同向剪切高出约26%；对于不同织物组织，剪切
变形下的渗透率差异显著；一般情况下，随着剪切角的增大纤维增强材料的渗透率逐渐下降，当织物剪切30°后，其渗透率平均下降约50%，但平纹织物在剪切角为10°时，渗透率却略有上升；剪切变形引起了织物整体渗透行为的改变，流动前峰的形状由一条平行于纬纱的直线逐渐变化成倾斜的直线。

关键词: 玻璃纤维织物, 真空导入模塑工艺, 渗透率, 剪切变形, 织物组织, 流动前峰

Abstract:

In order to study the influence of shear deformation of the fabric on the permeability of fiber reinforced material, the apparent permeability of glass fiber fabric preform was tested by vacuum infusion molding process. The results indicated that shear deformation reduces the permeability of preform. For twill fabric, different shear directions make the permeability of fiber reinforced material different. When the shear direction does not coincide with the twill line direction, the permeability of fabrics sheared by 10° is about 26% higher. Different fabric weave differs significantly in permeability. In general, the permeability of fiber reinforced material decreases as shearing angle increases. The permeability of fabric declines about 50% on average as its shearing angle goes up to 30°. However, for plain weave fabric, the permeability of fabric being sheared by 10°rises slightly. The shear deformation causes change of the overall permeability of fabric, and the shape of the flow front varies gradually from a straight line parallel to the weft yarn to an inclined straight line.

Key words: glass fiber fabric, vacuum infusion molding process, permeability, shear deformation, fabric weave, resin flow front

杨文权蒋金华陈南梁. 玻璃纤维织物在剪切变形作用下的渗透率[J]. 纺织学报, 2018, 39(08): 58-62.

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