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首页> 外文期刊>Journal of Polymers and the Environment >Acrylated Epoxidized Soybean Oil as a Green Alternative Healant in Development of Autonomous Self-Healing Materials
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Acrylated Epoxidized Soybean Oil as a Green Alternative Healant in Development of Autonomous Self-Healing Materials

机译：丙烯酸自氧化大豆油在自主开发自我修复材料中作为绿色替代疗法

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Progresses in the development of self-healing materials have resulted in transition from repairing damaged materials via external interference to autonomous internal healing process. This paper explores reaction between acrylated expoxidized soybean oil (AESO) with pentaerythritol tetrakis(3-mercaptopropionate) (PETMP) hardener, followed by microencapsulation of AESO for its potential use in a novel self-healing system. Self-healing reaction involving AESO and PETMP is considered more environmentally friendly than most of the reported self-healing reactions not only because AESO is derived from renewable resources, but also due to the fact that the reaction does not rely on any heavy metal catalyst. Such catalysts are usually introduced in a self-healing system to speed up the intended healing process and it could be very harmful to the environment and also to the end users. It was found that AESO and PETMP are able to crosslink with each other and solidify at room temperature within 15 min of mixing. The reaction occurs readily at room temperature without any external interference, suggesting the viability of the reaction to be utilized in an autonomous self-healing system. This paper follows through with microencapsulation of AESO in melamine-urea-formaldehyde, and result of the characterizations reveal that the microcapsules obtained are spherical with average diameter of around 150 A mu m, free-flowing, thermally stable at temperature up to 200 A degrees C, and the calculated % of microencapsulation reached as high as 86.4%.
机译：自愈材料开发的进展已导致从通过外部干扰修复损坏的材料过渡到自主的内部修复过程。本文探讨了丙烯酸酯化的氧化大豆油（AESO）与季戊四醇四（3-巯基丙酸酯）（PETMP）固化剂之间的反应，然后微囊封装AESO在新的自修复系统中的潜在用途。涉及AESO和PETMP的自修复反应被认为比大多数已报道的自修复反应对环境更友好，这不仅是因为AESO来自可再生资源，而且还因为该反应不依赖任何重金属催化剂。通常将这种催化剂引入自修复系统中以加速预期的修复过程，并且这可能对环境和最终用户非常有害。发现AESO和PETMP能够彼此交联并且在混合的15分钟内在室温下固化。该反应在室温下很容易发生，没有任何外部干扰，表明该反应在自主自修复系统中的可行性。本文对三聚氰胺-脲-甲醛中的AESO进行了微囊化，表征结果表明，所获得的微囊是球形的，平均直径约为150 Aμm，可自由流动，在高达200 A的温度下具有热稳定性C，并且微囊化的计算百分比高达86.4％。

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