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首页> 外文期刊>ACS Omega >Biobased Epoxies Derived from Myrcene and Plant Oil: Design and Properties of Their Cured Products
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Biobased Epoxies Derived from Myrcene and Plant Oil: Design and Properties of Their Cured Products

机译：来自牛蛋白和植物油的生物环氧树脂：其固化产品的设计和性质

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Two biobased epoxy resin monomers derived from myrcene and plant oil are synthesized without using petroleum-based bisphenol A. To obtain material with balanced strength and toughness, the two epoxy monomers are cured together in different weight proportions. Properties of cured epoxy resin are tested by different techniques. Tensile and impact tests indicate that when the content of myrcene-based epoxy is 50–75 wt %, the cured sample has a high strain of 32.30–161.47%, and a moderate tensile strength of 9.57–15.96 MPa. Dynamic mechanical analysis suggests that the glass transition temperature (T _(g)) of cured samples increases from 17 to 71 °C with the increasing content of myrcene-based epoxy. Morphology of fracture surface indicates that the cured sample containing plant oil-based epoxy resin shows obvious plastic deformation. The curing kinetics of the two epoxies resin is studied by differential scanning calorimetry. Also, the calculated activation energy is 70.49 kJ/mol for myrcene-based epoxy and 64.02 kJ/mol for poly-fatty acid-derived epoxy resin. The thermogravimetric analysis indicates that the main degradation temperature of all cured samples is above 300 °C. The sustainable biobased epoxy has some potential in preparing flexible epoxy materials and can be used to toughen conventional petroleum-based epoxy.
机译：在不使用石油基双酚A的情况下合成两种生物化的环氧树脂单体。为了获得具有平衡强度和韧性的材料，两种环氧单体以不同的重量比例固化在一起。固化环氧树脂的性质通过不同的技术测试。拉伸和冲击试验表明，当基于丙烯的环氧树脂的含量为50-75wt％时，固化样品具有32.30-161.47％的高菌株，适度拉伸强度为9.57-15.96MPa。动态力学分析表明，固化样品的玻璃化转变温度（ T _（g））随着氨基烯环氧树脂的含量的增加而增加，含量增加到71℃。裂缝表面的形态表明含有植物油基环氧树脂的固化样品显示出明显的塑性变形。通过差示扫描量热法研究了两个环氧树脂的固化动力学。此外，计算的活化能量为70.49kJ / mol，用于氨基基环氧树脂和64.02kJ / mol，用于多脂肪酸衍生的环氧树脂。热重分析表明，所有固化样品的主要降解温度高于300℃。可持续的Biobased环氧树脂在制备柔性环氧材料方面具有一些潜力，可用于增韧常规的石油基环氧树脂。

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