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首页> 外文期刊>Journal of Applied Polymer Science >Shape memory effect of poly(ethylene terephthalate) and poly(ethylene glycol) copolymer cross-linked with glycerol and sulfoisophthalate group and its application to impact-absorbing composite material
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Shape memory effect of poly(ethylene terephthalate) and poly(ethylene glycol) copolymer cross-linked with glycerol and sulfoisophthalate group and its application to impact-absorbing composite material

机译：甘油与磺基间苯二甲酸酯基交联的聚对苯二甲酸乙二醇酯和聚乙二醇共聚物的形状记忆效应及其在冲击吸收复合材料中的应用

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摘要

Poly(ethylene terephthalate) (PET) and poly(ethylene glycol) (PEG) copolymers crosslinked with glycerol and sulfoisophthalate (SP) were prepared to investigate the feasibility of fabricating smart vibration-controlling composite laminate. The composition of glycerol and SP was varied to get a copolymer with the best mechanical and shape memory properties. The highest shape recovery was observed for the copolymer with 2.5 mol % of glycerol and 2.5 mol % of SP. With the high shape-recovery copolymer in hand, sandwich-type copolymer composites were made with epoxy beam laminate, and the copolymer composite, in the best case, showed improved impact strength (3.5 times) and damping effect (2.6 times) compared to epoxy laminate beam alone. The sandwich-type epoxy composite, together with the advantage of control of glass transition temperature by PET, PEG, or the additives, can be applied to structural composite material requiring vibration control. (C) 2004 Wiley Periodicals, Inc.
机译：制备了与甘油和磺基间苯二甲酸酯（SP）交联的聚对苯二甲酸乙二醇酯（PET）和聚乙二醇（PEG）共聚物，以研究制备智能减振复合层压板的可行性。改变甘油和SP的组成以获得具有最佳机械和形状记忆性能的共聚物。对于具有2.5mol％的甘油和2.5mol％的SP的共聚物，观察到最高的形状恢复。手持高形状回复率共聚物，可以用环氧梁层压板制备夹心型共聚物复合材料，在最佳情况下，与环氧树脂相比，该共聚物复合材料的抗冲击强度提高了3.5倍，阻尼效果提高了2.6倍层压梁单独。夹层型环氧复合材料与通过PET，PEG或添加剂控制玻璃化转变温度的优点一起可用于需要振动控制的结构复合材料。 （C）2004年Wiley Periodicals，Inc.

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