• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Toughened bio-based epoxy blend network modified with transesterified epoxidized soybean oil: synthesis and characterization
【24h】

Toughened bio-based epoxy blend network modified with transesterified epoxidized soybean oil: synthesis and characterization

机译：由酯化的环氧化大豆油改性的增韧生物基环氧混合物网络：合成和表征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the current study, soybean oil was epoxidized to form epoxidized soybean oil (ESO), which was then transesterified by a base catalyzed process to form epoxy methyl soyate (EMS), which was subsequently confirmed through FTIR and H-1 NMR. In the second step, the EMS bioresin was blended with a petroleum based epoxy (DGEBA) in different composition ratios as a reactive diluent and their various properties were compared with epoxidized soybean oil (ESO) and commercial diluent (alkyl(C-12-C-14) glycidyl ether (AGE)) based epoxy blends. The rheological behavior of the pure epoxy, bioresins (ESO and EMS), AGE and modified epoxy blends was studied by applying the Cross model to investigate the flow behavior at variable shear rates. The critical stress intensity factor and critical strain energy release rate of all types of blends were determined using a single edge notch test, and the results were compared. It is observed that EMS has a comparable viscosity with AGE at both low and high shear rates and it also toughened the virgin epoxy effectively. Differential scanning calorimetry (DSC) study shows an increase in the heat of curing reaction by the incorporation of a diluent, which confirms better contact with the curing agent, but the peak temperature shifts towards a higher value. The mechanical, thermal and thermo-mechanical properties of the EMS based system are found to be improved. The high intensity peak of the loss tangent curve indicates the superior damping properties of the EMS based formulation under vibrating conditions.
机译：在目前的研究中，豆油被环氧化以形成环氧化大豆油（ESO），然后通过碱催化方法酯化以形成环氧甲基大酸酯（EMS），随后通过FTIR和H-1 NMR证实。在第二步中，将EMS嗜肺蛋白酶与不同组成比的石油基环氧（DGEBA）混合，因为与环氧化大豆油（ESO）和商业稀释剂（烷基（C-12-C烷基（C-12-C）进行比较它们的各种性质并进行各种性质-14）基于糖苷醚（年龄）的环氧混合物。通过施加交叉模型研究可变剪切速率下的流动性，研究了纯环氧树脂，生物蛋白（ESO和EMS），年龄和改性环氧树脂共混物的流变行为。使用单个边缘缺口试验测定所有类型的共混物的临界应力强度因子和临界应变能量释放率，并比较结果。观察到EMS具有低剪切速率和高剪切速率的可比粘度，并且还有效地增强了处女环氧树脂。差分扫描量热法（DSC）研究显示通过掺入稀释剂的固化反应热量增加，这证实与固化剂更好地接触，但峰值温度变化朝向更高的值。发现基于EMS的系统的机械，热和热机械性能得到改善。损耗切线曲线的高强度峰表示振动条件下基于EMS配方的优异阻尼性能。

著录项

  • 来源
    《RSC Advances》 |2015年第18期|共18页
  • 作者

    Sahoo Sushanta K.; Mohanty Smita; Nayak Sanjay K.;

  • 作者单位

    Cent Inst Plast Engn &

    Technol Lab Adv Res Polymer Mat Bhubaneswar 751024 Odisha India;

    Cent Inst Plast Engn &

    Technol Lab Adv Res Polymer Mat Bhubaneswar 751024 Odisha India;

    Cent Inst Plast Engn &

    Technol Lab Adv Res Polymer Mat Bhubaneswar 751024 Odisha India;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号