聚羟基脂肪酸酯对墙体用聚苯乙烯泡沫复合材料性能的影响

胡焕国, 代先星

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塑料科技 ›› 2025, Vol. 53 ›› Issue (03) : 77-81. DOI: 10.15925/j.cnki.issn1005-3360.2025.03.014
加工与应用

聚羟基脂肪酸酯对墙体用聚苯乙烯泡沫复合材料性能的影响

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Effect of PHA on Properties of Polystyrene Foam Composites for Walls

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摘要

研究探讨不同聚羟基脂肪酸酯(PHA)添加量对聚苯乙烯(PS)泡沫复合材料性能的影响。结果表明:随着PHA质量分数从0增至15%,复合材料的密度和维卡软化温度分别增至0.54 g/cm³和94.10 ℃,孔隙率和孔径减小,力学性能(拉伸和弯曲强度)提升,热稳定性增强。在PS中添加15% PHA使复合材料的抗老化性能和生物降解性能得到改善,质量损失率较低,仅为1.50%,90 d降解率为12.40%。综合分析表明,在PS中添加15% PHA制备的复合材料具有在建筑墙体中的应用潜力。

Abstract

The study investigates the effects of different polyhydroxyalkanoates (PHA) contents on the properties of polystyrene (PS) foam composites. The results show that as the mass fraction of PHA increases from 0 to 15%, the density and Vicat softening temperature of the composites increase to 0.54 g/cm³ and 94.10 ℃, respectively, while the porosity and pore size decrease. The mechanical properties (tensile and flexural strength) are enhanced, and the thermal stability is improved. Adding 15% PHA to PS improves the aging resistance and biodegradability of the composites, with a low mass loss rate of only 1.50% and a degradation rate of 12.40% after 90 days. A comprehensive analysis indicates that composites prepared with 15% PHA in PS have potential for application in building walls.

关键词

聚羟基脂肪酸酯 / 聚苯乙烯 / 泡沫 / 墙体 / 降解

Key words

Polyhydroxyalkanoates / Polystyrene / Foam / Wall / Degradation

中图分类号

TQ328.4

引用本文

导出引用
胡焕国 , 代先星. 聚羟基脂肪酸酯对墙体用聚苯乙烯泡沫复合材料性能的影响. 塑料科技. 2025, 53(03): 77-81 https://doi.org/10.15925/j.cnki.issn1005-3360.2025.03.014
HU Huanguo, DAI Xianxing. Effect of PHA on Properties of Polystyrene Foam Composites for Walls[J]. Plastics Science and Technology. 2025, 53(03): 77-81 https://doi.org/10.15925/j.cnki.issn1005-3360.2025.03.014

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基金

四川职业技术学院2023年度校级科研课题(2023YZB01)

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