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首页> 外文期刊>Journal of Applied Polymer Science >Synthesis and Characterization of a Lactic Acid-Based Thermoset Resin Suitable for Structural Composites and Coatings
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Synthesis and Characterization of a Lactic Acid-Based Thermoset Resin Suitable for Structural Composites and Coatings

机译：适用于结构复合材料和涂料的基于乳酸的热固性树脂的合成与表征

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摘要

A new biobased polyester resin was developed for thermoset composite applications. The resin is potentially inexpensive and can be produced industrially by relatively simple means. The resin consists of star-shaped methacrylated oligomers of lactic acid (LA). LA oligomers were synthesized in a two-step process: in the first step, oligomers of LA were polymerized by direct condensation of LA. In the second step, the oligomers were end-functionalized by methacrylic anhydride. The resin was characterized by differential scanning calorimetry, Raman spectroscopy, NMR, rubber process analyzer, and TOF-SIMS. Tests show that the resin can be crosslinked into a rigid network within a couple of minutes upon thermal initiation.
机译：已开发出一种新的生物基聚酯树脂用于热固性复合材料应用。该树脂潜在地便宜，并且可以通过相对简单的方法在工业上生产。该树脂由乳酸（LA）的星形甲基丙烯酸酯化低聚物组成。 LA低聚物是通过两步过程合成的：第一步，通过LA的直接缩合聚合LA的低聚物。在第二步中，将低聚物用甲基丙烯酸酐进行末端官能化。通过差示扫描量热法，拉曼光谱，NMR，橡胶过程分析仪和TOF-SIMS对树脂进行表征。测试表明，在热引发后的几分钟内，树脂可以交联成刚性网络。

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