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Effect of marine exposure on weatherability of FRP laminates

机译：海洋暴露对FRP层压板耐候性的影响

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We fabricated eight kinds of fiber-reinforced plastic from the matrices of unsaturated polyester resin and epoxy resin with glass fiber and carbon cloth. The FRP laminates were attached to the side of a large structure floating in Tokyo Bay. The FRP laminates were removed after one and two years, and mechanical property tests were conducted to assess the degradation. The results clearly indicated that Young's modulus and the bending modulus were the smallest for the specimens exposed at the waterline. The tensile and bending strengths of the specimens exposed for one and two years exceeded the initial values, and were reduced compared to the specimens exposed for one year, respectively. As the compatibility of reinforcing fiber and matrix, the carbon fiber and glass fiber were in conformity with epoxy resin and unsaturated polyester resin on the bending strength, respectively.
机译：我们用玻璃纤维和碳布制造了来自不饱和聚酯树脂和环氧树脂基质的八种纤维增强塑料。 FRP层压板附着在东京湾漂浮的大型结构的一侧。在一到两年后除去FRP层压材料，并进行机械性能测试以评估降解。结果清楚地表明，杨氏模量和弯曲模量是在水线暴露的标本中最小的。暴露一和两年的试样的拉伸和弯曲强度超过初始值，并与暴露一年的试样相比减少。作为增强纤维和基质的相容性，碳纤维和玻璃纤维分别符合环氧树脂和不饱和聚酯树脂的弯曲强度。

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