Carbon Powders Transforming From Waste PP Materials for Optimization of 8 mol% Yttria-Stabilized Zirconia Nano-Powders

IF 2.9 4区 工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY
Qiaoyang Sun, Tao Liu, Tianpeng Wen, Jingkun Yu
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Abstract

The wasted disposable polypropylene medical mask is one of the common waste polypropylene materials. The waste mask is characterized by being non-biodegradable and carelessly discarded, which causes serious environmental issues and resource waste. This study aims to investigate the recycling of waste disposable polypropylene medical masks to address the ecological problem and transform them into amorphous carbon powders via the carbonization coupling with the high-energy ball-milling method. The recycled waste mask was applied as a carbon dispersant to prepare high-quality 8YSZ nano-powders and the obtained carbon dispersant owned smaller particle size and higher specific surface area than the commercial activated carbon powders. The as-obtained 8YSZ nano-powders were well-dispersed and nano-sized, which resulted in high relative density and ionic conductivity for the sintered 8YSZ ceramic body. These findings suggest that the proposed strategy in this study can recycle the waste disposable polypropylene medical mask to prepare amorphous carbon powders as a carbon dispersant for obtaining high-quality 8YSZ nano-powders and also provide an idea for the comprehensive utilization of other waste polymer materials.

Abstract Image

从废弃 PP 材料转化而来的碳粉用于优化 8 mol% 钇稳定氧化锆纳米粉体
废弃的一次性聚丙烯医用口罩是常见的废弃聚丙烯材料之一。废弃口罩具有不可降解、随意丢弃等特点,造成了严重的环境问题和资源浪费。本研究旨在研究一次性废弃聚丙烯医用口罩的回收利用,以解决生态问题,并通过碳化耦合高能球磨法将其转化为无定形碳粉。将回收的废弃口罩作为碳分散剂,制备出高质量的 8YSZ 纳米粉体,与商用活性炭粉体相比,所获得的碳分散剂具有更小的粒径和更高的比表面积。所获得的 8YSZ 纳米粉体具有良好的分散性和纳米尺寸,因此烧结的 8YSZ 陶瓷体具有较高的相对密度和离子导电性。这些研究结果表明,本研究提出的策略可以回收利用废弃的一次性聚丙烯医用口罩制备无定形碳粉作为碳分散剂,从而获得高质量的 8YSZ 纳米粉体,同时也为其他废弃聚合物材料的综合利用提供了思路。
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来源期刊
Korean Journal of Chemical Engineering
Korean Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
4.60
自引率
11.10%
发文量
310
审稿时长
4.7 months
期刊介绍: The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.
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