High efficiency value-added bulk recycling of polymers by solid state shear milling

通过固态剪切研磨实现聚合物的高效增值批量回收

• 批准号: EP/S018573/1
• 负责人: Adrian Kelly
• 金额: $ 102.45万
• 依托单位: University of Bradford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FS018573%2F1
• 关键词: efficiency; value; added; bulk; recycling

Over 300 million tonnes of plastic is produced annually and this is expected to double over the next 20 years. Plastics have become vital materials in many aspects of everyday life but the generation of plastics solid waste (PSW) is becoming an increasing problem, for example 8 million tonnes of plastic waste finds its way into the oceans each year, having a huge impact on marine ecosystems. Some relatively clean and easy to separate types of waste plastics can be recycled economically, such as drinks bottles, and levels of recycling are increasing but many polymeric materials are much more difficult to recycle, for example composites containing different materials of polymers which cannot be re-melted such as rubber tyres and printed circuit boards. As such there is an urgent need worldwide to develop new technically and economically feasible methods to recycle these types of materials. This aligns with the concept of a circular economy which seeks to keep products and materials in use and design out waste and pollution. Our joint UK-China team aims to develop an industrial scale continuous process to successfully recycle and re-manufacture currently difficult to recycle bulk waste streams, with high efficiency. A continuous milling process will be developed to break down solid polymeric waste into fine powders with controlled properties, which can then be reprocessed into value-added products. We will perform experiments to understand the mechanisms of the milling process and how these can be opitimised for particular waste streams. We will characterise the materials produced and examine different ways of turning these powders into useful, value-added products. We combine unique skills and strengths of our Chinese and UK groups to address key issues facing both of our countries - effectively reducing the significant amount of plastic waste with efficient routes to re-use. This proposal builds on the highly successful research collaborations over the last decade between the world-class research laboratories of the Polymer IRC at Bradford and Sichuan University State Key Laboratory for Polymer Materials Engineering (SKLPME), an important and international award-winning part of our RCUK Bradford Science Bridges China platform.

每年生产超过 3 亿吨塑料，预计未来 20 年将翻一番。塑料已成为日常生活许多方面的重要材料，但塑料固体废物（PSW）的产生正成为一个日益严重的问题，例如每年有800万吨塑料废物进入海洋，对海洋生态系统产生巨大影响。一些相对清洁且易于分离的废塑料可以经济地回收，例如饮料瓶，并且回收水平正在提高，但许多聚合物材料的回收要困难得多，例如含有不同聚合物材料的复合材料，这些材料不能重新熔化，例如橡胶轮胎和印刷电路板。因此，全世界迫切需要开发新的技术上和经济上可行的方法来回收这些类型的材料。这与循环经济的概念相一致，循环经济旨在保持产品和材料的使用，并通过设计消除浪费和污染。我们的中英联合团队旨在开发一种工业规模的连续工艺，以成功高效地回收和再制造目前难以回收的散装废物流。将开发一种连续研磨工艺，将固体聚合物废物分解成具有受控特性的细粉末，然后将其重新加工成增值产品。我们将进行实验来了解研磨过程的机制以及如何针对特定废物流优化这些过程。我们将表征所生产的材料，并研究将这些粉末转化为有用的增值产品的不同方法。我们结合中英两国团队的独特技能和优势来解决我们两国面临的关键问题——通过有效的再利用途径有效减少大量的塑料废物。该提案建立在过去十年中布拉德福德聚合物 IRC 世界级研究实验室与四川大学高分子材料工程国家重点实验室 (SKLPME) 之间非常成功的研究合作的基础上，SKLPME 是我们 RCUK 布拉德福德科学桥中国平台的重要且屡获国际奖项的一部分。

项目成果

Development of thermoplastic vulcanizates based on polypropylene/ethylene propylene diene monomer for prototyping by Fused Filament Fabrication

• DOI: 10.1016/j.polymer.2023.125839
• 发表时间: 2023-03
• 期刊: Polymer
• 影响因子: 4.6
• 作者: J. Innes;B. Shriky;D. Nocita;G. Thompson;P. Coates;B. Whiteside;A. Kelly;M. Hebda

Solid State Orientation of Thermoplastic Vulcanizates

热塑性硫化橡胶的固态取向

• DOI: 10.1002/mame.202200279
• 发表时间: 2022
• 期刊: Macromolecular Materials and Engineering
• 影响因子: 3.9
• 作者: Innes J

Micromechanical modeling of devulcanized ground tyre rubber, graphene platelets, and carbon black in recycled natural rubber blends

• DOI: 10.1002/app.54435
• 发表时间: 2023-07
• 期刊: Journal of Applied Polymer Science
• 影响因子: 3
• 作者: J. Innes;Nehnah Siddique;M. Hebda;G. Thompson;Xiaolei Wang;P. Coates;B. Whiteside;H. Benkreira-H.-Benkr

Effect of solid-state shear milled natural rubber particle size on the processing and dynamic vulcanization of recycled waste into thermoplastic vulcanizates

• DOI: 10.1016/j.susmat.2022.e00424
• 发表时间: 2022-04-06
• 期刊: SUSTAINABLE MATERIALS AND TECHNOLOGIES
• 影响因子: 9.6
• 作者: Innes, J. R.;Shriky, B.;Kelly, A.
• 通讯作者: Kelly, A.