盛嘉伟,韩冬,张俭

• 1:浙江工业大学 材料科学与工程学院，浙江 杭州 310014

摘要(Abstract)：

机械力化学法改性煤泥粉体，采用单因素试验方法得出优化的改性参数：硬脂酸为改性剂，改性剂用量2%（wt），改性时间120 min，球料比5：1，球磨转速200 r·min^-1，料浆浓度150%（wt）；在优化工艺条件下，硬脂酸改性样品的活化指数、煤泥粉体的中位径、吸油值和接触角分别为85.6%、3.3 μm、32.2 g·（100 g）^-1和114.9°。通过红外光谱分析发现，硬脂酸和煤泥粉体发生了物理吸附和化学反应。对煤泥/PP（聚丙烯）复合材料力学性能测试表明，改性后的煤泥粉体提高了PP的抗弯曲性能和抗冲击性能，分别由31.8 MPa和3.1 kJ·m^-2提高到37.6 MPa和3.5 kJ·m^-2。煤泥粉体/PP复合材料冲击断面的SEM照片表明：煤泥粉体经过改性后，与PP的相容性明显加强。

关键词(KeyWords)： 煤泥;硬脂酸;改性;复合性能

Abstract:

Keywords:

基金项目(Foundation): 浙江省自然科学基金（LY14E020004）。

作者(Author): 盛嘉伟,韩冬,张俭

DOI: 10.3969/j.issn.1003-9015.2017.04.023

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