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An investigation on shape memory behaviors of epoxy resin system

机译：环氧树脂体系的形状记忆行为研究

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摘要

Shape-memory epoxy is receiving considerable attention because of its superior mechanical and thermal properties and excellent shape-memory performance. In this study, a novel series of shape-memory epoxy resins are prepared using hydro-epoxy, hexahydrophthalic anhydride, and diglycidyl 4,5-epoxy tetrahydro phthalate (TDE-85) to further improve the recovery force of shape-memory epoxy resins. The thermal, mechanical, and shape-memory properties of the shape-memory epoxy resin system are investigated by differential scanning calorimetry, dynamic mechanical analysis, bend test, and shape recovery test. Results indicate that the glass transition temperature (T_g), rubber modulus, and room-temperature bend strength increase as TDE-85 content increases. Investigation of the shape-memory behavior of the resin reveals that full recovery can be achieved after only several minutes when the temperature is equal to or above T_g. The shape recovery time decreases with the increase in TDE-85 content at T_g, T_g + 10 ℃, and T_g + 20 ℃. These results are attributed to the increase in TDE-85 content.
机译：形状记忆环氧树脂由于其卓越的机械和热性能以及出色的形状记忆性能而受到了广泛的关注。在这项研究中，使用氢环氧，六氢邻苯二甲酸酐和二缩水甘油基4,5-环氧四氢邻苯二甲酸酯（TDE-85）制备了一系列新型的形状记忆环氧树脂，以进一步提高形状记忆环氧树脂的恢复力。通过差示扫描量热法，动态力学分析，弯曲试验和形状恢复试验研究了形状记忆环氧树脂体系的热，机械和形状记忆特性。结果表明，随着TDE-85含量的增加，玻璃化转变温度（T_g），橡胶模量和室温弯曲强度也随之增加。对树脂的形状记忆行为的研究表明，当温度等于或高于T_g时，仅在几分钟后即可实现完全恢复。随着T_g，T_g + 10℃和T_g + 20℃下TDE-85含量的增加，形状恢复时间减少。这些结果归因于TDE-85含量的增加。

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  • 来源
    《Journal of Materials Research》 |2015年第14期|2179-2187|共9页
  • 作者

    Kun Wei; Biao Ma; Yu Liu; Hainian Wang; Ning Li;

  • 作者单位

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang' an University, Xi 'an 710064, China Key Laboratory of Ministry of Transportation Road Structure and Materials, Chang' an University, Xi'an 710064, China;

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang' an University, Xi 'an 710064, China Key Laboratory of Ministry of Transportation Road Structure and Materials, Chang' an University, Xi'an 710064, China;

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang' an University, Xi 'an 710064, China Key Laboratory of Ministry of Transportation Road Structure and Materials, Chang' an University, Xi'an 710064, China;

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang' an University, Xi 'an 710064, China Key Laboratory of Ministry of Transportation Road Structure and Materials, Chang' an University, Xi'an 710064, China;

    Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang' an University, Xi 'an 710064, China Key Laboratory of Ministry of Transportation Road Structure and Materials, Chang' an University, Xi'an 710064, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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