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首页> 美国卫生研究院文献>Materials >A Perspective on the Prowaste Concept: Efficient Utilization of Plastic Waste through Product Design and Process Innovation
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A Perspective on the Prowaste Concept: Efficient Utilization of Plastic Waste through Product Design and Process Innovation

机译：Prowaste概念透视：通过产品设计和工艺创新有效利用塑料废物

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This work is aimed to present an innovative technology for the reinforcement of beams for urban furniture, produced by in-mold extrusion of plastics from solid urban waste. This material, which is usually referred to as “recycled plastic lumber”, is characterized by very poor mechanical properties, which results in high deflections under flexural loads, particularly under creep conditions. The Prowaste project, founded by the EACI (European Agency for Competitiveness and Innovation) in the framework of the Eco-Innovation measure, was finalized to develop an innovative technology for selective reinforcement of recycled plastic lumber. Selective reinforcement was carried out by the addition of pultruded glass rods in specific positions with respect to the cross section of the beam, which allowed optimizing the reinforcing efficiency. The reinforcement of the plastic lumber beams with pultruded rods was tested at industrial scale plant, at Solteco SL (Alfaro, Spain). The beams obtained, characterized by low cost and weight, were commercialized by the Spanish company. The present paper presents the most relevant results of the Prowaste project. Initially, an evaluation of the different materials candidates for the reinforcement of recycled plastic lumber is presented. Plastic lumber beams produced in the industrial plant were characterized in terms of flexural properties. The results obtained are interpreted by means of beam theory, which allows for extrapolation of the characteristic features of beams produced by different reinforcing elements. Finally, a theoretical comparison with other approaches which can be used for the reinforcement of plastic lumber is presented, highlighting that, among others, the Prowaste concept maximizes the stiffening efficiency, allowing to significantly reduce the weight of the components.
机译：这项工作旨在提出一种创新技术，用于增强城市家具横梁的强度，该技术是通过将城市固体垃圾中的塑料进行模内挤出制成的。这种材料通常被称为“再生塑料木材”，其特点是机械性能非常差，这会导致在挠曲载荷下，特别是在蠕变条件下的高挠度。由EACI（欧洲竞争力和创新机构）在生态创新措施的框架下建立的Prowaste项目最终完成，以开发一种创新技术，以选择性地增强再生塑料木材。选择性加固是通过在相对于梁横截面的特定位置添加拉挤玻璃棒来实现的，从而可以优化加固效率。用拉挤杆加固的塑料木梁在Solteco SL（西班牙Alfaro）的工业规模工厂中进行了测试。所获得的光束具有成本低，重量轻的特点，由西班牙公司进行了商品化。本文介绍了Prowaste项目最相关的结果。最初，介绍了用于加固再生塑料木材的不同材料候选材料的评估。在工厂中生产的塑料木梁通过抗弯性能进行了表征。所获得的结果通过梁理论进行解释，该理论允许外推由不同加固元件产生的梁的特征。最后，提出了与可用于增强塑料木材的其他方法的理论比较，并着重指出，除其他外，Prowaste概念最大程度地提高了加固效率，从而大大减轻了部件的重量。

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