EVA/HSP 复合发泡材料的制备和性能

doi:10.12066/j.issn.1007-2861.1956

摘要/Abstract

摘要：

以用途广泛的乙烯-醋酸乙烯酯(ethylene-vinyl acetate, EVA)为基体, 采用模压成型工艺制备了 EVA/汉麻秆芯粉(EVA/hemp stem powder, EVA/HSP)复合发泡材料. 通过扫描电子显微镜(scanning electron microscopy, SEM)观察了 EVA/HSP 复合发泡材料的泡孔形貌, 通过哈克转矩流变仪研究了 EVA/HSP 复合发泡材料的流变形能, 表征了不同 HSP 添加量的 EVA/HSP 复合发泡材料的吸湿快干性能和力学性能, 探讨了 HSP 添加量对吸湿快干性能和断裂伸长率的影响机制. 结果发现, 当 HSP 的添加量为 10$\sim$20 phr 时, 材料的综合性能最优. 这是因为适量的 HSP 有助于改善材料的泡孔形貌, 兼具补强和增韧的效果, 并赋予了材料优异的吸湿快干性能.

关键词: 乙烯-醋酸乙烯酯, 汉麻秆芯粉, 复合发泡材料, 泡孔形貌, 力学性能

Abstract:

The composite foams consisting of ethylene-vinyl acetate (EVA) and hemp stem powder (HSP) are prepared by melt mixing and compressing molding. Morphology of the samples is evaluated with scanning electron microscopy (SEM), and rheological properties evaluated with Haake rheometer. The effects of HSP content on quick drying and mechanical properties are studied, and the mechanism is explored. When the HSP content is 10$\sim$20 phr, the materials have the best overall performance because a proper amount of HSP can improve cell morphology, strengthen, toughen the matrix, and give the materials quick drying performance.

Key words: ethylene-vinyl acetate (EVA), hemp stem powder (HSP), composite foams, cell morphology, mechanical property

中图分类号:

TQ328

刘丽, 诸慧杰, 涂多想, 郝新敏, 黄杰. EVA/HSP 复合发泡材料的制备和性能[J]. 上海大学学报(自然科学版), 2018, 24(5): 782-790.

LIU Li, ZHU Huijie, TU Duoxiang, HAO Xinmin, HUANG Jie. Preparation and properties of EVA/HSP composite foams[J]. Journal of Shanghai University（Natural Science Edition）, 2018, 24(5): 782-790.

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