With the booming of the aquaculture industry, waste seashell is now causing serious environmental crisis and its recycling has now been drawn great attention in both academic and industrial field. In this study, enlightened by mycelium, a thermally tunable interlocking morphology has been introduced into the interface between polypropylene (PP) and shell powder via self-assembly of β-form nucleating agent (NAs). The thermodynamic and kinetic factors such as maximum heating temperature, heating time and cooling rate exhibited a great impact on the migration of the NAs molecules, which accordingly determined the crystalline morphology and the interlocking. The mycelium-mimic interlocking could significantly improve the interfacial interaction and enhance impact toughness of PP by an increase of 69% without deteriorating tensile strength. Free from organic solvent and compatibilizer, it is considered as a green and sustainable route for recycling bio-based waste oyster shell powder as bio-fillers.

随着水产养殖业的蓬勃发展，废弃贝壳现在正引起严重的环境危机，其回收利用在学术和工业领域都引起了极大的关注。在这项研究中，受到菌丝体的启发，通过β型成核剂（NAs）的自组装，将热可调的互锁形态引入了聚丙烯（PP）和壳粉之间的界面。热力学和动力学因素，例如最高加热温度，加热时间和冷却速率对NAs分子的迁移表现出很大的影响，因此决定了晶体的形态和互锁。模拟菌丝体的互锁可以显着改善界面相互作用，并提高PP的冲击韧性，增加69％，而不会降低拉伸强度。