Preparation of fine fiberglass‐resin powders from waste printed circuit boards by different milling methods for reinforcing polypropylene composites
Preparation of fine fiberglass‐resin powders from waste printed circuit boards by different milling methods for reinforcing polypropylene composites
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DOI：
10.1002/app.42494
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发表时间：
2015-09
影响因子：
3
通讯作者：
Shuangqiao Yang;Shibing Bai;Qi Wang
中科院分区：
文献类型：
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作者：
Shuangqiao Yang;Shibing Bai;Qi Wang
为了获得高性能的聚丙烯（PP）/玻璃钢复合材料，采用不同的球磨方法，以废弃印刷电路板为原料，制备玻璃钢细粉。进一步球磨可显著改善复合材料的加工性能和外观，与气流磨和行星球磨相比，盘式球磨可获得更小的平均粒径和更窄的粒径分布。力学性能测试结果表明，盘磨法制备的细纤维增强玻璃钢可以作为PP复合材料的增强填料，并且比其他两种研磨方法具有更好的力学性能。通过扫描电子显微镜研究表明，磨盘碾磨法制备的复合材料具有较好的分散性和界面结合力。同时，磨盘球磨对玻璃钢的异相成核作用更为明显。研究结果表明，固相剪切法是制备高性能FRP和FRP填充PP复合材料的一种新方法。© 2015威利期刊公司. J.应用聚合物Sci. 2015，132，42494。
In this study, different milling methods were used to prepare fine fiberglass-resin powders (FRP) from waste printed circuit boards for the sake of obtaining high-performance polypropylene (PP)/FRP composite. The processability and appearance of composites can be greatly improved through further milling of FRP; smaller average particle size and narrower particle size distribution can be obtained by pan milling as compared with jet milling and planetary ball milling. Mechanical test results showed that fine FRP prepared by pan milling could be used as reinforcing fillers in the PP composites and possessed better mechanical properties than other two milling methods. The mechanical properties was also confirmed by scanning electron microscopy studies which indicated that the dispersion of FRP and interfacial adhesion between fiberglass and PP matrix was much better by pan milling. Meanwhile, the heterogeneous nucleation effect of FRP by pan milling was more obvious. The above results indicate that solid-state shear is a new method for producing fine FRP and high-performance PP composites filled with FRP. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42494.