Synthesis and application of natural polymeric plasticizer obtained through polyesterification of rice fatty acid
Synthesis and application of natural polymeric plasticizer obtained through polyesterification of rice fatty acid
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DOI：
10.1590/s1516-14392014005000017
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发表时间：
2014-04-01
期刊：
影响因子：
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通讯作者：
Beppu, Marisa Masumi
中科院分区：
文献类型：
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作者：
Vieira, Melissa Gurgel Adeodato;Silva, Mariana Altenhofen da;Beppu, Marisa Masumi
以大米脂肪酸和多元醇为原料，通过酯化反应合成了一种新型的天然增塑剂，并对其进行了理化表征和在聚氯乙烯（PVC）中的初步应用。采用单丙二醇、辛醇和二甘醇作为酯化反应的多元醇。还添加了Catalyst Fascat（R）4100。对合成的天然增塑剂进行了粘度、酸度和羟基指数、水分含量、摩尔质量、化学组成（FTIR）和颜色等表征。并与实验室合成的工业增塑剂（DOA：己二酸二辛酯）进行了比较。结果表明，除颜色外，天然增塑剂与市售增塑剂（如DOA）具有相似的性质。力学性能测试表明，与纯PVC膜相比，天然增塑剂的加入使PVC膜的断裂伸长率（371.2%）显著提高，表明天然增塑剂具有潜在的应用价值。
This study includes the synthesis of a new natural plasticizer obtained through esterification reaction of rice fatty acid and polyols, its physicochemical characterization and its preliminary application in polyvinyl chloride (PVC). Monopropylene glycol, octanol and diethylene glycol were used as polyols for esterification reaction. Catalyst Fascat (R) 4100, was also added. Viscosity, acidity and hydroxyl index, moisture content, molar mass, chemical composition (by FTIR) and color were determined to characterize the natural plasticizer synthesized. The results were compared with a commercial plasticizer (DOA: di-octyl adipate) derived from petrochemical source and synthesized in laboratory. According to the results, except from color, the natural plasticizer presented similar properties of commercially available plasticizers, such as DOA. Mechanical tests indicated that the addition of the natural plasticizer to PVC films resulted in a significant increase on its elongation at break (371.2%) compared to pure PVC film, indicating a possible application for this plasticizer.