从渔具回收的玻璃纤维增强聚丙烯长丝的性能
The Properties of Glass Fiber Reinforced Polypropylene Filaments Recycled from Fishing Gear
AI总结：
本文研究回收渔网/绳索聚丙烯并以玻璃纤维增强制成3D打印长丝，通过热分析与力学测试证明其性能可与原生材料相比，具有减少海洋塑料的潜力。
摘要：
塑料污染主要来自由高密度聚乙烯（HDPE）和聚丙烯（PP）构成的遗失渔具，构成了重大环境障碍。本研究评估了从渔网/绳索中回收PP并以玻璃纤维（GF）将其增强为3D打印机长丝的潜力，以此作为减少/防止海洋塑料的一种途径。研究采用差示扫描量热法、拉伸试验和夏比冲击试验，分析了两种材料：一种为原生材料（vPP-GF），另一种由回收聚丙烯和原生玻璃纤维制成（rPP-GF）。结果发现，rPP-GF通常优于vPP-GF。rPP-GF具有更高的熔点和结晶点，可能具有更高的结晶度，并能承受更高的拉伸应力，而vPP-GF能承受更高的拉伸应变。进一步分析揭示，rPP-GF复合材料中可能存在HDPE，而制造商并未报告这一点。这显著影响了夏比试验，使所得数据难以得出结论。尽管如此，二者在力学性能和材料性能方面的可比性表明，回收聚丙烯渔网/绳索并用玻璃纤维增强以延长其寿命、减少海洋塑料具有巨大潜力。
英文摘要：
Plastic pollution, mainly from lost fishing gear composed of high-density polyethylene (HDPE) and polypropylene (PP), poses a significant environmental obstacle. This study evaluates the potential of recycling PP from fishnet/rope and reinforcing it with glass fiber (GF) in the form of 3D printer filaments as a way to reduce/prevent ocean plastic. Two materials, one virgin (vPP-GF) and one made up of recycled polypropylene and virgin glass fibers (rPP-GF), were analyzed using differential scanning calorimetry, tensile, and Charpy impact tests. From the results, it was found that rPP-GF often outperformed vPP-GF. rPP-GF had a higher melting and crystallization point, likely a higher crystallinity, and could withstand a higher tensile stress, while vPP-GF could withstand a higher tensile strain. Further analysis revealed the potential presence of HDPE within the rPP-GF composite, which was not reported by the manufacturer. This significantly affected the Charpy test and made it difficult to draw conclusions from the resulting data. Nevertheless, their comparability in terms of mechanical and material properties indicates the strong potential of recycling polypropylene fishnet/rope and reinforcing it with glass fibers to extend their lifespan and reduce ocean plastic.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
