The purpose of this study is to develop polymer composite masterbatches by using poly(lactic) acid as a carrier resin and bamboo charcoal particle as a natural pigment. Moreover, antioxidant and dispersing agent were added to the masterbatches where the antioxidant improves thermal and ultraviolent stability of pigment masterbatches while dispersing agent enhances the distribution and dispersion of bamboo charcoal particles in the polymer matrix. The natural pigment masterbatches were diluted in the poly(lactic) acid matrix. The morphology, thermal property, and rheological properties of bamboo charcoal particles/poly(lactic) acid composites comparing before and after weathering tests are studied. It was concluded that natural pigment charcoal masterbatches can make good bamboo charcoal particles/poly(lactic) acid composites for high‐temperature food packaging applications.

中文翻译：

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用聚乳酸中竹炭粉开发复合材料母料

这项研究的目的是通过使用聚乳酸作为载体树脂和竹炭颗粒作为天然颜料来开发聚合物复合母料。此外，将抗氧化剂和分散剂添加到母料中，其中抗氧化剂改善了颜料母料的热稳定性和紫外线稳定性，而分散剂增强了竹炭颗粒在聚合物基质中的分布和分散。将天然颜料母料在聚乳酸基质中稀释。研究了竹炭颗粒/聚乳酸复合材料在风化试验前后的形貌，热性能和流变性能。