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首页> 外文期刊>Journal of Materials Engineering and Performance >Fiber Reinforced Polyester Resins Polymerized by Microwave Source
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Fiber Reinforced Polyester Resins Polymerized by Microwave Source

机译：微波辐射聚合的纤维增强聚酯树脂

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摘要

Polyester resin based composite materials are widely used in the manufacture of fiberglass boats. Production time of fiberglass laminate components could be strongly reduced by using an intense energy source as well as microwaves. In this work a polyester resin was used with 2% by weight of catalyst and reinforced with chopped or woven glass fabric. Pure resin and composite samples were cured by microwaves exposition for different radiation times. A three point bending test was performed on all the cured samples by using an universal testing machine and the resulting fracture surfaces were observed by means of scanning electron microscopy (SEM). The results of mechanical and microscopy analyses evidenced that microwave activation lowers curing time of the composite while good mechanical properties were retained. Microwaves exposition time is crucial for mechanical performance of the composite. It was evidenced that short exposition times suffice for resin activation while long exposure times cause fast cross linking and premature matrix fracture. Furthermore high-radiation times induce bubbles growth or defects nucleation within the sample, decreasing composite performance. On the basis of such results microwave curing activation of polyester resin based composites could be proposed as a valid alternative method for faster processing of laminated materials employed for large-scale applications.
机译：聚酯树脂基复合材料被广泛用于玻璃纤维船的制造。玻璃纤维层压板组件的生产时间可以通过使用强大的能源和微波来大大减少。在这项工作中，使用聚酯树脂和2％重量的催化剂，并用切碎的或机织的玻璃纤维增​​强。纯树脂和复合材料样品通过微波辐照固化不同的辐射时间。使用通用测试机对所有固化样品进行三点弯曲测试，并通过扫描电子显微镜（SEM）观察所得的断裂表面。机械和显微镜分析的结果表明，微波活化降低了复合材料的固化时间，同时保留了良好的机械性能。微波暴露时间对于复合材料的机械性能至关重要。有证据表明，短的曝光时间足以使树脂活化，而长的曝光时间会导致快速的交联和基质的过早断裂。此外，高辐射时间会导致样品中气泡生长或缺陷成核，从而降低复合材料的性能。基于这样的结果，可以提出微波固化聚酯树脂基复合材料的活化方法，作为快速加工用于大规模应用的层压材料的有效替代方法。

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  • 作者

    A.M. Visco; L. Calabrese; P. Cianciafara; L. Bonaccorsi; E. Proverbio;

  • 作者单位

    Dipartimento di Chimica Industriale ed Ingegneria dei Materiali Università di Messina Contrada Di Dio S.Agata Messina I-98166 Italia;

    Dipartimento di Chimica Industriale ed Ingegneria dei Materiali Università di Messina Contrada Di Dio S.Agata Messina I-98166 Italia;

    Dipartimento di Chimica Industriale ed Ingegneria dei Materiali Università di Messina Contrada Di Dio S.Agata Messina I-98166 Italia;

    Dipartimento di Chimica Industriale ed Ingegneria dei Materiali Università di Messina Contrada Di Dio S.Agata Messina I-98166 Italia;

    Dipartimento di Chimica Industriale ed Ingegneria dei Materiali Università di Messina Contrada Di Dio S.Agata Messina I-98166 Italia;

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  • 正文语种 eng
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  • 关键词

    composite materials; flexural tests; microwaves curing; polyester resin;

    机译：复合材料;弯曲测试;微波固化;聚酯树脂;

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