臺灣博碩士論文加值系統

本文旨在探討三次元互鎖織物(3-D angle-interlock woven)之滲透
性(permeability)量測,以窄幅織帶機(narrow fabric loom)織造三,五和
七層互鎖織物,再利用樹脂轉注成型技術(resin transfer molding
technique)量測織物之平面滲透性.本實驗利用兩種量測技術:一為將注入
口開於模具中央,使樹脂注入織物中形成放射狀流動型式(radial flow
mode),另一為將注入口開於模具邊緣造成直線狀流動型式(linear flow
mode).並研究樹脂流動率(resin flow rate),纖維體積含有率,織物層數,
織物結構及邊界效應(edge effect)對三次元互鎖織物平面滲透性之影響,
以及樹脂在織物中流動前端型式. 結果顯示,樹脂流動前端隨樹脂離注
入口距離的增加而使橢圓形逐漸變為圓形.在高樹脂流動率下,流動前端之
橢圓率卻隨樹脂離注入口距離之增加而增加.在樹脂流動率方面,本實驗分
別使用三種不同的樹脂流動率,1.57x10-7m3/s,3.14x10-7m3/s和6.28
x10-7m3/s,平面滲透性亦隨樹脂流動率之增加而減小.在纖維體積含有率
方面,滲透性隨纖維體積含有率的增加而下降.在織物層數方面,本實驗之
滲透性隨織物層數的增加而下降.在織物結構方面,則是以四層疊層織物之
滲透性比五層互鎖織物小.而在直線狀流動型式方面,邊界效應隨著織物層
數的增加而減少.在織物層數方面,織物滲透性隨著織物層數的增加而下
降.吾人認為本實驗最大問題在於壓力量測之方式.不同之壓力量測位置會
得到不同壓力,因此往後須就壓力量測位置再做考量.

The purpose of this thesis was to study the measurement of
permeability 3-D angle-interlock woven fabrics. The 3-D angle-
interlock woven fabrics were fabricated by narrow fabric loom at
laboratory. The resin transfer molding process was used to
measure the in-plane permeability of woven fabrics. We used two
measuring technique of the in-plane permeability: one is radial
flow of the resin injected from a central gate of the mold, and
another one is linear flow of the resin injected from a side
gate of the mold. The effects if the resin flow rate, the fiber
volume fraction, the number of layers of angle-interlock woven
fabrcis, woven fabric structures and edge effect onthe in-plane
permeability of 3-D angle-interlock woven fabrics were studied.
The resin flow pattern in the woven was also investigated.
based on the experimental observations, the resin flow front in
elliptical became to circle shape as the resin flow front far
away from the centralinjecting gate. But in high resin flow
rate, the ellipticity of flow front increased with increasing
the resin flow front far away from the injecting gate. There ard
three diffrernt resin flow rate 1.57x10-7m3/s, 3.14x10-7m3/sand
6.28x10-7m3/s were used in this experiment. As the results the
in-plane permeability of 3-D woven fabrics decreased with
increasing resin flow rate.On the other hand, the in-plane
permeability of 3-D woven decreased with increasing fiber volume
fraction. The in-plane permeability of 3-D angle-interlock woven
decreased with increasing the number of layers of fabrics.
Comparsion of the in-plane permeability of 5-layers of 3-D
angle-interlock and laminated plain woven, we can found that the
permeability of 4-layers laminated plain woven was lower than
5-layers angle-interlock woven. In linear flow mode, the edge
effect decreased with increasing the number of layers of
fabrics. And the in-plane permeability decreased with increasing
the number of layers of fabrics.