Pyrolysis characteristics and preparation of WPP/NWPCB/POE composites

CHEN Yizhong; WU Man; XIE Henglai; LIU Xinmin; GUO Qingjie

doi:10.11949/j.issn.0438-1157.20150671

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Pyrolysis characteristics and preparation of WPP/NWPCB/POE composites

更新时间：2025-12-10

- Pyrolysis characteristics and preparation of WPP/NWPCB/POE composites
- CIESC Journal Issue 12, Pages: 5163-5170(2015)
- 作者机构：
  
  青岛科技大学化工学院, 清洁化工过程山东省高校重点实验室,山东,青岛,266042
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20150671
  CLC： 783.2
- Online First：05 December 2015，
  
  Published：05 December 2015
- 稿件说明：
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CHEN Yizhong, WU Man, XIE Henglai, et al. Pyrolysis characteristics and preparation of WPP/NWPCB/POE composites[J]. CIESC Journal, 2015, (12): 5163-5170.
DOI：

CHEN Yizhong, WU Man, XIE Henglai, et al. Pyrolysis characteristics and preparation of WPP/NWPCB/POE composites[J]. CIESC Journal, 2015, (12): 5163-5170. DOI： 10.11949/j.issn.0438-1157.20150671.

摘要

以废旧汽车保险杠(WPP)为基体

废弃线路板非金属粉(NWPCB)为填料

通过熔融共混的方法制备了系列WPP/NWPCB复合材料。在此基础上

用乙烯-辛烯共聚物(POE)和马来酸酐接枝聚丙烯(PP-g-MAH)对复合材料进行了协同改性

以增强复合材料的性能。力学性能测试和冲击断面微观形貌分析表明

POE显著提高了WPP/NWPCB复合材料的韧性

当POE用量为15 g·(100 g)-1时

冲击强度较改性前提高129%;PP-g-MAH能够有效改善复合材料中填料与基体相容性

当添加量为9 g·(100 g)-1时

复合材料的机械性能达到最佳

冲击强度、弯曲强度和拉伸强度较改性前分别提高7.8%、23.4%和20%。通过热重-红外联用研究了WPP/NWPCB/POE复合材料的热解过程

结果表明

复合材料在热解过程中除产生烷烃、烯烃及CO2外

还产生了少量的苯酚类芳香族化合物与HBr等有害气体

同时NWPCB填料的添加提高了复合材料中WPP的热稳定性。

Abstract

With the waste polypropylene (WPP) as matrix and the modificated non-metallic powder from waste printed circuit boards (NWPCB) as filler

the WPP/NWPCB composites were prepared by means of the melt blending. To enhance the mechanical characters

the WPP/NWPCB composites were synergistically modified by ethylene octene copolymer (POE) and maleic anhydride grafted polypropylene (PP-g-MAH). The mechanical properties and morphology analysis showed that POE greatly improved the impact strength of WPP/NWPCB composite materials. When the content of POE was 15 g·(100 g)-1

the impact strength of WPP/NWPCB composites was increased by 129%. The interface bonding strength between filler and matrix was improved with modification by 9 g·(100 g)-1 PP-g-MAH. The impact strength

tensile strength and flexural strength were increased by 7.8%

23.4% and 20% respectively. The pyrolysis characteristics of WPP/NWPCB/POE composite materials were investigated by means of TGA-FTIR at nitrogen atmosphere. It indicated that the heat stability of WPP material in the composites was improved by the addition of NWPCB. The alkanes

olefins and CO2 were released during the pyrolysis process of WPP/NWPCB composites

whereas a small amount of harmful gas such as phenol aromatic compounds and hydrogen bromide was also produced.

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