Value-added utilization of coal fly ash and recycled polyvinyl chloride in door or window sub-frame composites-Reference-Cited by-同舟云学术

Value-added utilization of coal fly ash and recycled polyvinyl chloride in door or window sub-frame composites

Published:2022-12-28 Issue:1 Volume:12 Page:
ISSN:2191-9550
Container-title:Green Processing and Synthesis
language:en
Short-container-title:

Author:

Li Zhaoshuai¹²,Wang Guxia¹²,Yan Jun³,Qian Yongqiang³,Guo Shengwei³⁴,Liu Yuan³⁵,Li Dan³⁴

Affiliation:

1. Ningxia Key Laboratory of Solar Chemical Conversion Technology, North Minzu University , Yinchuan 750021 , China

2. Key Laboratory for Chemical Engineering and Technology, State Ethnic Affairs Commission, North Minzu University , Yinchuan 750021 , China

3. School of Materials Science and Engineering, North Minzu University , Yinchuan 750021 , China

4. International Scientific and Technological Cooperation Base of Industrial Solid Waste Cyclic Utilization and Advanced Materials , Yinchuan 750021 , China

5. Polymer Research Institute of Sichuan University, The State Key Laboratory of Polymer Materials Engineering , Chengdu 610065 , China

Abstract

Abstract Comprehensive utilization of coal fly ashes (CFA) solid waste is a worldwide urgent issue. In China, tens of millions of tons of CFA are un-utilized and stored or discarded in landfills per year, causing a significant waste of resources and a serious environmental hazard. Herein, we developed a new process to reuse CFA and recycled polyvinyl chloride (r-PVC) to produce door or window sub-frame (DWSF) composite materials, realized CFA and r-PVC trash to treasure. In this process, aluminate-modified CFA mixing with r-PVC and other additives obtain a mixture, subsequently extruding into pellets, re-extrusion, cooling, shaping, hauling, and cutting to DWSF materials. The mechanical properties of these are excellent and meet the National Standards, with static bending and tensile strengths of 33 and 13.6 MPa, respectively, and a hardness of 89.2 HRR. Compared with the traditional CaCO3-based DWSF, our CFA-based DWSFs have higher competitive both from the perspective of “carbon neutrality” and production costs. More strikingly, this process is simple, robust, and easy to industrialize, which allows large-scale, value-added utilization of CFA.

Publisher

Walter de Gruyter GmbH

Subject

Health, Toxicology and Mutagenesis,Industrial and Manufacturing Engineering,Fuel Technology,Renewable Energy, Sustainability and the Environment,General Chemical Engineering,Environmental Chemistry

Link

https://www.degruyter.com/document/doi/10.1515/gps-2023-0002/pdf

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