Conventional plastics pose significant environmental and health risks across their life cycle, driving intense interest in sustainable alternatives. Among these, polyhydroxyalkanoates (PHAs) stand out for their biocompatibility, degradation characteristics, and diverse applications. Yet, challenges like production cost, scalability, and limited chemical variety hinder their widespread adoption, impacting material selection and design. This review examines PHA research through the lens of the classical materials tetrahedron, exploring property-structure-processing-performance (PSPP) relationships. By analyzing recent literature and addressing current limitations, we gain valuable insights into PHA development. Despite challenges, we remain optimistic about the role of PHAs in transitioning towards a circular plastic economy, emphasizing the need for further research to unlock their full potential.

中文翻译：

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旨在降解的材料：聚羟基脂肪酸酯生物聚合物的结构、性能、加工和性能关系


传统塑料在其整个生命周期中都会带来重大的环境和健康风险，这推动了人们对可持续替代品的浓厚兴趣。其中，聚羟基脂肪酸酯 （PHA） 因其生物相容性、降解特性和多种应用而脱颖而出。然而，生产成本、可扩展性和有限的化学品种类等挑战阻碍了它们的广泛采用，从而影响了材料的选择和设计。本文通过经典材料四面体的视角研究了 PHA 研究，探讨了性能-结构-加工-性能 （PSPP） 的关系。通过分析最近的文献并解决当前的局限性，我们获得了对 PHA 发展的宝贵见解。尽管面临挑战，我们仍然对 PHA 在向循环塑料经济过渡中的作用持乐观态度，强调需要进一步研究以释放其全部潜力。