Thermal stability of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/modified montmorillonite bio-nanocomposites

Wang Xiaoping; Zhang Hao; Liu Meijun; Jia Demin

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Thermal stability of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/modified montmorillonite bio-nanocomposites

机译：聚（3-羟基丁酸酯-CO-4-羟基丁酸酯的热稳定性/改性蒙脱石生物纳米复合材料

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Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P34HB)/modified montmorillonite (EMMT) bio-nanocomposites were prepared via melt intercalation method. The thermal stability of the bio-nanocomposites was investigated. The results showed that the decomposition temperature (T-5%) of P34HB/EMMT bio-nanocomposite reached 271.4 degrees C, 39.9 degrees C higher than that of pure P34HB. The remarkable thermal stability enhancement was presumably originated from the uniform dispersion of EMMT in the matrix and intercalated structures of P34HB/EMMT bio-nanocomposites, which was related to the increased compatibility of EMMT and P34HB caused by the ester group in EMMT. TGA-FTIR analysis on the thermal degradation procedures of the bio-nanocomposites manifested that the introduction of EMMT did not alter the degradation mechanism of P34HB. However, the intercalated structures hindered the mobility of P34HB macromolecular and slowed down the decomposing process of P34HB. POLYM. COMPOS., 38:673-681, 2017. (c) 2015 Society of Plastics Engineers

机译：采用熔融插层法制备了聚3-羟基丁酸-co-4-羟基丁酸酯（P34HB）/改性蒙脱土（EMMT）生物纳米复合材料。研究了生物纳米复合材料的热稳定性。结果表明，P34HB/EMMT生物纳米复合材料的分解温度（T-5%）达到271.4℃，比纯P34HB高39.9℃。这种显著的热稳定性增强可能源于EMMT在基体中的均匀分散以及P34HB/EMMT生物纳米复合材料的插层结构，这与EMMT中的酯基导致EMMT和P34HB的相容性增加有关。TGA-FTIR分析表明，EMMT的引入并没有改变P34HB的降解机制。P34HB的插层结构降低了P34HB的分解速度，而P34HB的插层结构阻碍了P34HB的分解过程。博莱姆。COMPOS。，38:673-681, 2017. （c） 2015年塑料工程师学会

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《Polymer Composites》 |2017年第4期|共9页
作者
Wang Xiaoping; Zhang Hao; Liu Meijun; Jia Demin;
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South China Univ Technol Sch Mat Sci &

Engn Guangzhou 510640 Guangdong Peoples R China;

South China Univ Technol Sch Mat Sci &

Engn Guangzhou 510640 Guangdong Peoples R China;

South China Univ Technol Sch Mat Sci &

Engn Guangzhou 510640 Guangdong Peoples R China;

South China Univ Technol Sch Mat Sci &

Engn Guangzhou 510640 Guangdong Peoples R China;

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正文语种 eng
中图分类增强塑料、填充塑料;
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Thermal stability of poly(3-hydroxybutyrate-co-4-hydroxybutyrate)/modified montmorillonite bio-nanocomposites

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