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首页> 外文期刊>Journal of Applied Polymer Science >Filler fraction effect on creep response of crosslinked polyester matrix with mineral filler
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Filler fraction effect on creep response of crosslinked polyester matrix with mineral filler

机译：填料分数对矿物填料交联聚酯基体蠕变响应的影响

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摘要

The effect of a particle marble filler on the creep response of a crosslinked polyester matrix before and after physical aging is described. Composites with various filler-polyester matrix percentages are prepared by applying mixing technology, curing at room temperature, and post-curing above the glass-transition temperature. Two groups of specimens of identical composition are studied. The first group is tested 1 month after preparation (relatively nonaged), whereas the second group is tested after 13 years of storage at stable room temperature and humidity, at current atmospheric pressure, and in the absence of direct light (aged). The two groups of specimens (aged and nonaged) are subjected to creep measurements. The modulus of elasticity and the creep compliance are determined, plotted against the filler volume fraction, and fit by empirical equations. A simple mechanical model is proposed to fit the compliance curves, and good agreement between the measured and predicted values is shown. The mechanical behavior of the composites is also described, using empirical equations that fit the relation between the composite/matrix ratio of the deformation characteristics and the filler volume fraction. A crucial matrix influence is proposed to fit the compliance curves, and good agreement between the measured and predicted values is shown. Experimentally established natural regularities can be used to predict the creep compliances of composites from a less demanding experimental program. (C) 2003 Wiley Periodicals, Inc. [References: 14]
机译：描述了大理石颗粒填料对物理老化前后交联的聚酯基体的蠕变响应的影响。通过应用混合技术，在室温下固化以及在玻璃化转变温度以上进行后固化，可以制备具有各种填料-聚酯基质百分比的复合材料。研究了两组成分相同的标本。第一组在制备后1个月进行测试（相对未老化），而第二组在稳定的室温和湿度下，在当前大气压下以及在没有直射光的条件下（老化）存放13年后进行测试。对两组样品（老化和未老化）进行蠕变测量。确定弹性模量和蠕变柔量，相对于填料体积分数作图，并通过经验方程式拟合。提出了一个简单的机械模型来拟合柔量曲线，并显示了测量值和预测值之间的良好一致性。还使用经验方程式描述了复合材料的机械性能，这些经验方程式适合了复合材料/变形特性的基体比与填料体积分数之间的关系。提出了一个关键的矩阵影响来拟合柔量曲线，并显示了测量值和预测值之间的良好一致性。实验建立的自然规律可用于从要求不高的实验程序中预测复合材料的蠕变柔量。 （C）2003 Wiley Periodicals，Inc. [参考：14]

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