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首页> 外文期刊>Polymer Composites >Short-term effect of distilled water, seawater and temperature on the crushed and Interlaminar shear strength of fiber reinforced plastic composites made by the newly proposed rubber pressure molding technique
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Short-term effect of distilled water, seawater and temperature on the crushed and Interlaminar shear strength of fiber reinforced plastic composites made by the newly proposed rubber pressure molding technique

机译：蒸馏水，海水和温度的短期影响对新提出的橡胶压力成型技术制成的纤维增强塑料复合材料的破碎和层间剪切强度的影响

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摘要

Fiber reinforced plastic (FRP) composites are used in adverse environmental conditions i.e., variation of temperature, humidity, seawater, acidic water, chemicals, organic fuels, etc. It is important to investigate the crushed and interlaminar shear strength (ILSS) behavior of these composite materials under adverse conditions. This study shows the effect of temperatures, seawater and distilled water on crushed and ILSS of glass fiber reinforced polyester composite panels made by a recently developed process known as rubber pressure molding (RPM) technique over a range of temperature from 0 to 150 degrees C. The fiber volume fraction in the composite varies from 30 to 60%. The RPM technique is based on the matching die set, where the die is made of hard metal like steel and the punch from flexible rubber like materials. The use of flexible rubber punch helps to intensify and uniformly redistribute pressure (both operating pressure and developed hydrostatic pressure due to the flexible rubber punch under compression) on the surface of the complex shaped product. Natural rubber was used to prepare a rubber punch in this investigation. For performance evaluation of FRP composites made by RPM technique, FRP composites were also made by the conventional method and tested at the same temperatures. It is observed that the crushed and ILSS of FRP composites decreases towards higher extreme of the temperature range selected. FRP composites made by RPM technique show higher crushed and ILSS over the temperature range of 0-150 degrees C compared to the FRP composites made by conventional process. Again crushed and ILSS increases with increasing fiber volume% in the composites made by both techniques. In addition to these results the crushed and ILSS decrease with dipping time both in distilled and seawater.
机译：纤维增强塑料（FRP）复合材料用于恶劣的环境条件下，例如温度，湿度，海水，酸性水，化学药品，有机燃料等的变化。研究这些材料的破碎和层间剪切强度（ILSS）行为非常重要不利条件下的复合材料。这项研究显示了温度，海水和蒸馏水对玻璃纤维增​​强聚酯复合板的压碎和ILSS的影响，该复合材料是通过最新开发的工艺（称为橡胶压力成型（RPM）技术）在0至150摄氏度的温度范围内制成的。复合材料中的纤维体积分数为30％至60％。 RPM技术基于匹配的模具，其中模具由像钢一样的硬质金属制成，而冲头则由类似橡胶的柔性材料制成。柔性橡胶冲头的使用有助于在复杂成型产品的表面上增强并均匀地重新分配压力（由于压缩条件下的柔性橡胶冲头而产生的工作压力和静液压）。在这项研究中，使用天然橡胶制备了橡胶冲头。为了评估通过RPM技术制造的FRP复合材料的性能，还通过常规方法制造了FRP复合材料，并在相同温度下进行了测试。观察到，FRP复合材料的压碎和ILSS朝所选温度范围的更高极限值降低。与通过传统方法制造的FRP复合材料相比，通过RPM技术制造的FRP复合材料在0-150摄氏度的温度范围内显示出更高的压碎度和ILSS。两种技术制得的复合材料中，随着纤维体积百分比的增加，再次粉碎后ILSS会增加。除了这些结果，在蒸馏水和海水中，压碎和ILSS随浸泡时间的延长而降低。

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