Environmental and Cost Assessment of a Polypropylene Nanocomposite
Environmental and Cost Assessment of a Polypropylene Nanocomposite
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聚丙烯纳米复合材料的环境和成本评估
DOI：
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发表时间：
2007
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通讯作者：
Martin Kumar Patel
中科院分区：
文献类型：
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作者：
A. Roes;Enrico Marsili;E. Nieuwlaar;Martin Kumar Patel
本文介绍了一种聚丙烯（PP）/层状硅酸盐纳米复合材料作为包装膜，农业薄膜，汽车面板的使用研究。该研究的主要问题是“纳米复合材料产品在整个生命周期中的环境影响和成本是否低于传统材料制造的产品？”研究的常规（基准）材料是纯聚丙烯作为包装薄膜，纯聚乙烯作为农用薄膜，玻璃纤维增强聚丙烯作为汽车面板。在所有三种情况下，使用PP纳米复合材料导致材料用量的减少，同时确保相同的功能。使用阿什比的材料指数估计材料减少量，包装薄膜为-9%，农用薄膜为-36.5%，汽车面板为-1.25%。不用说，当使用更少的材料时，产品对环境的影响会减少。然而，纳米颗粒的生产和掺入可能会产生额外的影响。我们发现，当PP纳米复合材料用于农业薄膜的生产时，在整个生命周期中具有明显的环境效益。我们注意到，当纳米复合材料用于农业薄膜和汽车面板的生产时，具有一些成本效益。如果纳米粘土的价格至多为5,000欧元，那么纳米复合材料包装膜的成本也低于常规生产的产品的成本。
This paper describes a study on the use of a polypropylene (PP)/layered silicate nanocomposite as packaging film, agricultural film, and automotive panels. The study’s main question was “Are the environmental impacts and costs throughout the life cycle of nanocomposite products lower than those of products manufactured from conventional materials?” The conventional (benchmark) materials studied were pure polypropylene as packaging film, pure polyethylene as agricultural film, and glass fiber-reinforced polypropylene as automotive panels. In all three cases, the use of the PP nanocomposite resulted in a reduction of the amount of material used, while ensuring the same functionality. Material reduction was estimated using Ashby’s material indices and amounted to −9% for packaging film, −36.5% for agricultural film, and −1.25% for automotive panels. It goes without saying that a product’s impact on the environment will decrease when less material is used. The production and incorporation of nanoparticles, however, may have additional impacts. We found clear environmental benefits throughout the entire life cycle when the PP nanocomposite is used in the manufacture of agricultural film. We noted some cost benefits when the nanocomposite is used in the production of agricultural film and automotive panels. If the price of nanoclay is at most €5,000 tonne then the cost of nanocomposite packaging film is also lower than that of the conventionally produced product.