樹脂黏度變化對RTM成型工藝的影響

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基金項目:

建設機械關鍵技術國家重點實驗室開放課題資助項目(SKLCM2014-6)

Influence of the viscosity change of resin on the RTM process

1. State Key Laboratory of Construction Machinery, Changsha 410013, China;
2. School of Aeronautics and Astronautics, Central South University, Changsha 410083, China

摘要: 采用黏度計測定不同初始溫度下環氧樹脂的黏度,通過擬合法建立環氧樹脂的工程黏度模型.將黏度模型引入樹脂傳遞模塑(resin transfer molding,RTM)成型樹脂流動模擬中,結合PAM-RTM軟件模擬不同初始溫度下樹脂的填充過程,討論樹脂黏度變化對RTM成型過程樹脂流動行為的影響.結果表明,隨著樹脂初始溫度的上升,填充時間先降后升,在初始溫度為40℃時填充時間最短.樹脂黏度變化對大型結構件RTM成型影響顯著.
- 環氧樹脂 /
- 樹脂傳遞模塑 /
- 黏度 /
- 計算機模擬
Abstract: The viscosity of epoxy resin was tested by viscometer, and an engineering viscosity model was constructed by the fitting method. In this simulation, the viscosity model was applied to predict the flow process of epoxy resin with different initial temperatures by using PAM-RTM. The influence of the viscosity change of epoxy resin on resin transfer molding (RTM) was discussed in detail. The results show that the filling time of RTM decreases first and then increases as the initial temperature increases, and the shortest filling time is acquired at 40℃. The viscosity change of epoxy resin has remarkable influence on the RTM of large scale structure.
- epoxy resin /
- resin transfer molding（RTM） /
- viscosity /
- computer simulation