溶剂沉淀法制备具有相变功能的PA6/AG复合粉体及其性能分析

doi:10.19491/j.issn.1001-9278.2020.08.012

中国塑料 ›› 2020, Vol. 34 ›› Issue (8): 71-77.DOI: 10.19491/j.issn.1001-9278.2020.08.012

溶剂沉淀法制备具有相变功能的PA6/AG复合粉体及其性能分析

于翔¹, 谭缓缓¹, 王卓¹, 张玉坤², 安彦飞¹, 赵俊杰¹()

^1.河南工程学院材料与化学工程学院，郑州 450007
^2.黄山尚傅科技有限公司，安徽黄山 245061

收稿日期:2020-03-02 出版日期:2020-08-26 发布日期:2020-08-26

Preparation and Performance Investigation of PA6/Aerogel Composite Powders with Phase Change Function by Solvent Precipitation Method

Xiang YU¹, Huanhuan TAN¹, Zhuo WANG¹, Yukun ZHANG², Yanfei AN¹, Junjie ZHAO¹()

^1.Department of Material and Chemical Engineering, Henan Institute of Engineering, Zhengzhou 450007, China
^2.Huangshan Sumf Technology Co, Ltd, Huangshan 245061, China

Received:2020-03-02 Online:2020-08-26 Published:2020-08-26
Contact: Junjie ZHAO E-mail:yxpolymer@sina.com

摘要/Abstract

摘要：

通过多孔材料吸附法与溶剂沉淀法制备聚酰胺6(PA6)/气凝胶(AG)复合粉体，并通过差示扫描量热仪、X射线衍射仪和激光粒度分析仪等对复合粉体的包覆性、流动性和耐用性等进行测试与分析。结果表明，成功制备了一种具有优异耐用性能的相变材料—PA6/AG复合粉体，其中AG相变材料中石蜡与AG的的质量比为1∶1、粉体中PA6与AG相变材料质量比为2∶1时，复合粉体中的AG相变材料完全被包覆且具有优异的耐用性能；同时在PA6与AG相变材料的质量比为2∶1时，PA6/AG复合粉体的粒径增至85.62 μm，且其流动性能最优。

关键词: 聚酰胺6, 复合粉体, 相变材料, 流动性, 制备方法

Abstract:

In this study, PA6/Aerogel (AG) composite powders were prepared by the porous material adsorption and solvent precipitation methods, and their coating properties, flowability and durability were investigated by DSC, XRD, and laser particle size analyzer. The results indicated that the PA6/AG composite powders were successfully prepared as a type of phase change materials with excellent durability performance. When the paraffin/AG mass ratio was set to 1∶1 for the AGbased phase change composite materials and the mass ratio of PA6/AGbased phase change composite materials was set to 2∶1 for the composite powders, the AGbased phase change composite materials in the composite powders were completely covered by PA resin, and therefore an excellent durability was achieved. Moreover, the particle size of the composite powders increase to 85.62 μm at this mass ratio, and an optimal flowability was obtained.

Key words: polyamide 6, composite powders, phase change material, flowing property, preparation method

中图分类号:

TQ323.6

于翔, 谭缓缓, 王卓, 张玉坤, 安彦飞, 赵俊杰. 溶剂沉淀法制备具有相变功能的PA6/AG复合粉体及其性能分析[J]. 中国塑料, 2020, 34(8): 71-77.

Xiang YU, Huanhuan TAN, Zhuo WANG, Yukun ZHANG, Yanfei AN, Junjie ZHAO. Preparation and Performance Investigation of PA6/Aerogel Composite Powders with Phase Change Function by Solvent Precipitation Method[J]. China Plastics, 2020, 34(8): 71-77.

图/表 13

图1 AG相变材料在不同含量乙醇（体积分数）中的纯化

Fig.1 Purification of AG phase change materials in different contents of ethanol (volume fraction)

图2 AG相变材料的质量损失率

Fig.2 Mass loss rate of AG phase change materials

图3 AG相变材料的DSC循环曲线

Fig.3 DSC cycle curves of AG phase change materials

图4 PA6/AG复合粉体的XRD曲线

Fig.4 XRD curves of PA6/AG composite powders

图5 PA6/AG复合粉体的粒径分布曲线

Fig.5 Particle distribution of PA6/AG composite powders

PA6与AG相变材料的质量比	平均粒径/μm	粒度分布指数
1∶0	33.48	1.001
10∶3	43.78	0.741
2∶1	85.62	0.373
1∶1	51.62	0.833
1∶2	29.17	1.410

表1 PA6/AG复合粉体的平均粒径与粒径分布指数

Tab.1 Average particle size and its distribution index of PA6/AG composite powders

图6 PA6/AG复合粉体的DSC曲线

Fig.6 DSC curves of PA6/AG composite powders

图7 PA6/AG复合粉体流过标准漏斗所需时间

Fig.7 Time required for PA6/AG composite powders to flow through a standard funnel

图8 PA6/AG复合粉体的休止角照片

Fig.8 Photo of repose angle of PA6/AG composite powders

PA6与AG相变材料的质量比	休止角α/(°)
1∶0	42.5
10∶3	40.0
2∶1	31.0
1∶1	35.0
1∶2	37.0

表2 PA6/AG复合粉体的休止角

Tab.2 Repose angle of PA6/AG composite powders

PA6与AG相变材料的质量比	松装密度/ g/cm^-3	振实密度/ g·cm^-3	压缩度/ %
1∶0	0.103	0.128	19.059
1∶0.3	0.117	0.135	13.737
1∶0.5	0.209	0.228	8.330
1∶1	0.174	0.192	9.526
1∶2	0.159	0.179	11.024

表3 PA6/AG复合粉体的松装密度、振实密度与压缩度

Tab.3 Bulk density, tap density and compression degree of PA6/AG composite powders

图9 PA6/AG复合粉体升降温循环测试的质量变化率

Fig.9 Mass change rate of PA6/AG composite powders under temperature cycling test

图10 PA6/AG复合粉体的SEM照片

Fig.10 SEM of PA6/AG composite powders

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溶剂沉淀法制备具有相变功能的PA6/AG复合粉体及其性能分析

Preparation and Performance Investigation of PA6/Aerogel Composite Powders with Phase Change Function by Solvent Precipitation Method

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