| 基于生物柴油的二聚化及其聚酰胺树脂的合成 |
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| 引用本文： | 刘云,辛红玲,闫云君,徐莉.基于生物柴油的二聚化及其聚酰胺树脂的合成[J].北京化工大学学报(自然科学版),2010,37(1):106-112. |
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| 作者姓名： | 刘云 辛红玲 闫云君 徐莉 |
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| 作者单位： | 华中科技大学 生命科学与技术学院， 湖北 武汉 430074 |
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| 基金项目： | 国家“863”计划(2003AA214061/2009AA03Z232);;湖北省自然科学基金(2008BCD359);;华中科技大学科研启动基金(0124170030) |
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| 摘 要： | 以乌桕梓油生物柴油为对象,研究了不饱和脂肪酸甲酯二聚体的制备及聚酰胺树脂的合成。结果表明,二聚体合成最优工艺条件为:催化剂膨润土加入量12%(质量分数),催化助剂LiCl 0.8%(质量分数),反应温度220℃,反应时间6 h。在此条件下,二聚体收率为75.2%。以上述所得二聚体进一步制备聚酰胺树脂,并将其应用于环氧树脂固化体系中,对聚酰胺树脂固化物产品进行DSC、耐热性和力学性能测试。结果表明,当聚酰胺与环氧树脂固化体系质量比为0.6∶1时,固化反应最完全,固化物产品的耐热性能最高,抗冲击、弯曲及剪切性能最强,其性能与市售同类产品相当。
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| 关 键 词： | 乌桕梓油 生物柴油 二聚酸 聚酰树脂固化剂 |
| 收稿时间： | 2009-09-26 |
Preparation of dimeric fatty acid methyl esters and their polyamides from biodiesel |
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| LIU Yun,XIN HongLing,YAN YunJun,XU Li.Preparation of dimeric fatty acid methyl esters and their polyamides from biodiesel[J].Journal of Beijing University of Chemical Technology,2010,37(1):106-112. |
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| Authors: | LIU Yun XIN HongLing YAN YunJun XU Li |
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| Affiliation: | College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan Hubei 430074, China |
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| Abstract: | The preparation of dimeric fatty acid methyl esters and their polyamides from Chinese kernel oil hiodiesel has been investigated. The results showed that the optimum conditions for dimeric fatty acid methyl ester synthesis were: amount of bentonite catalyst 12% (based on the weight of fatty acid methyl esters), catalytic additives LiCI 0.8% (based on the weight of fatty acid methyl esters), reaction temperature 220 ℃, reaction time 6 h. Under these conditions, the yield of dimerie fatty acid methyl esters was 75.2%. The preparation of polyamides from the dimefic fatty acid methyl esters and their application in epoxy resin curing systems were further studied. By means of DSC, and experimental measurements of heat resistance and mechanical properties of the cured product, it was found that the highest heat resistance and impact resistance, and strongest bending and shear properties, were ob-tained when the mass ratio of polyamide resin and epoxy resin curing system was 0.6:1. It was concluded that the performance of polyamides from Chinese kernel oil biodiesel is comparable to similar products available commercial-ly. |
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| Keywords: | Chinese kernel oil biodiesel dimer acid polyamide resin curing agent performance analysis |
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