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Bio-based reactive diluents as sustainable replacements for styrene in MAESO resin

机译：生物基反应性稀释剂作为Maeso树脂中苯乙烯的可持续替代品

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Four different biorenewable methacrylated/acrylated monomers, namely, methacrylated fatty acid (MFA), methacrylated eugenol (ME), isobornyl methacrylate (IM), and isobornyl acrylate (IA) were employed as reactive diluents (RDs) to replace styrene (St) in a maleinated acrylated epoxidized soybean oil (MAESO) resin to produce bio-based thermosetting resins using free radical polymerization. The curing kinetics, gelation times, double bond conversions, thermal-mechanical properties, and thermal stabilities of MAESO-RD resin systems were characterized using DSC, rheometer, FT-IR, DMA, and TGA. The results indicate that all four RD monomers possess high bio-based carbon content (BBC) ranging from 63.2 to 76.9% and low volatilities (less than 7 wt% loss after being held isothermally at 30 degrees C for 5 h). Moreover, the viscosity of the MAESO-RD systems can be tailored to acceptable levels to fit the requirements for liquid molding techniques. Because of the introduction of RDs to the MAESO resin, the reaction mixtures showed an improved reactivity and an accelerated reaction rate. FT-IR results showed that almost all the C?C double bonds within MAESO-RD systems were converted. The glass transition temperatures (T-g) of the MAESO-RDs ranged from 44.8 to 100.8 degrees C, thus extending the range of application. More importantly, the T-g of MAESO-ME resin (98.1 degrees C) was comparable to that of MAESO-St resin (100.8 degrees C). Overall, this work provided four potential RDs candidates to completely replace styrene in the MAESO resin, with the ME monomer being the most promising one.
机译：四个不同的生物可再生甲基丙烯酸/丙烯酸盐单体，即甲基丙烯酸酯化的脂肪酸（MFA），甲基丙烯酸化的丁子香酚（ME），丙烯酸异冰片酯（IM），和丙烯酸异冰片酯（IA）被用作反应性稀释剂（RDS）来取代苯乙烯（St）中马来酸化的丙烯酸酯化的环氧化大豆油（MAESO）树脂生产生物基热固性使用自由基聚合的树脂。使用DSC，流变仪，FT-IR，DMA，和TGA固化动力学，胶凝时间，双键的转化，热 - 机械性能，和MAESO-RD树脂体系的热稳定性进行了表征。结果表明，所有四个RD单体具有高的生物基碳含量（BBC）范围为63.2至76.9％与低挥发性（在30℃下被保持等温5小时后小于7重量％的损失）。此外，MAESO-RD系统的粘度可以调整至可接受的水平，以适合液体模制技术的要求。因为引入的RD到MAESO树脂，反应混合物显示的改进的反应性和加速反应速率。 FT-IR结果表明，几乎所有的C？MAESO-RD系统中C双键转变。所述MAESO-RD的玻璃化转变温度（T-G），从44.8到100.8摄氏度范围，从而延长应用的范围内。更重要的是，MAESO-ME树脂（98.1℃）的T-g为比得上MAESO圣树脂（100.8摄氏度）。总体而言，这一工作提供了四个潜在的RD候选人在MAESO树脂完全取代苯乙烯，与ME单体是最有前途的之一。

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  • 来源
    《RSC Advances》 |2018年第25期|共9页
  • 作者

    Zhang Yuehong; Li Yuzhan; Thakur Vijay Kumar; Wang Liwei; Gu Jiyou; Gao Zhenhua; Fan Bo; Wu Qiong; Kessler Michael R.;

  • 作者单位

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Heilongjiang Peoples R China;

    Washington State Univ Sch Mech &

    Mat Engn Pullman WA 99164 USA;

    Washington State Univ Sch Mech &

    Mat Engn Pullman WA 99164 USA;

    Washington State Univ Sch Mech &

    Mat Engn Pullman WA 99164 USA;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Heilongjiang Peoples R China;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Heilongjiang Peoples R China;

    Northeast Forestry Univ Coll Mat Sci &

    Engn Harbin 150040 Heilongjiang Peoples R China;

    Qingdao Univ Sci &

    Technol Coll Chem Engn Qingdao 266042 Shandong Peoples R China;

    Washington State Univ Sch Mech &

    Mat Engn Pullman WA 99164 USA;

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