New polymer recycling technology

新型聚合物回收技术

• 批准号: 486863-2015
• 负责人: Favis, Basil
• 金额: $ 8.27万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=585819
• 关键词: New; polymer; recycling; technology

Polyolefins, styrenic resins, polyethylene terephtalate, and polyvinylchloride, represent 90% of the consumer waste plastic stream. In the best scenario, only 30% of traditional thermoplastic polymers, that is, high-density polyethylene, polypropylene, and polyethylene terephthalate are commonly recycled in North America. Since most plastics are immiscible with each other, mixtures of different recycled plastics demonstrate very poor mechanical properties due to the poor compatibility. The identification, separation and sorting of the vast volumes of co-mingled consumer plastic waste into single components is costly and sometimes impossible. This imposes a serious limitation on the plastics recycling industry. The objective of this proposal is to examine the commercial potential of a novel plastics recycling approach and to apply the technology to actual recycled plastics obtained from some of the most important recycling companies in North America (Canada Fibers and QRS). We propose a new material, based on the latest developments in polymer blend material science, and the process for preparing it. Starting from a co-continuous blend of recycled polyethylene (PP) and recycled polypropylene (PE), hierarchically encapsulated polymers (category 2-7 waste plastics) can be exclusively located within PP when the principal PE/PP interface is compatibilized. This controlled segregation and encapsulation of up to 40% of waste plastic within recycled polypropylene allows for the creation of a co-mingled recycled plastic material with excellent mechanical properties similar to pure polypropylene. We principally aim to license the composition of matter, as well as the processing know how, for this material and the overall objective at the end of this project is to obtain at least two possible recycled plastic products that demonstrate sufficient viable commercial potential to attract client investment.

聚烯烃、苯乙烯树脂、聚对苯二甲酸乙二醇酯和聚氯乙烯占消费者废塑料流的90%。在最好的情况下，只有30%的传统热塑性聚合物，即高密度聚乙烯，聚丙烯和聚对苯二甲酸乙二醇酯在北美通常被回收。由于大多数塑料彼此不混溶，不同再生塑料的混合物由于相容性差而表现出非常差的机械性能。将大量混合的消费者塑料废物识别、分离和分类为单一成分是昂贵的，有时甚至是不可能的。这严重限制了塑料回收行业。 该提案的目的是研究一种新的塑料回收方法的商业潜力，并将该技术应用于从北美一些最重要的回收公司（加拿大纤维和QRS）获得的实际回收塑料。基于聚合物共混材料科学的最新发展，我们提出了一种新材料及其制备方法，从回收聚乙烯（PP）和回收聚丙烯（PE）的共连续共混物开始，当主要的PE/PP界面相容时，分级封装的聚合物（2-7类废塑料）可以完全位于PP中。在回收的聚丙烯中，这种高达40%的废塑料的受控分离和封装允许产生具有与纯聚丙烯类似的优异机械性能的共混回收塑料材料。我们的主要目标是许可该材料的物质组成以及加工技术，该项目结束时的总体目标是获得至少两种可能的再生塑料产品，这些产品具有足够的可行商业潜力，以吸引客户投资。