This study examines the use of alkenyl succinic anhydride (ASA)-surface treated calcium carbonate as a functional mineral additive for application in wood fiber (WF)-reinforced PLA composites. The influence of addition quantity on the material properties of PLA composites with 40 wt.% fiber reinforcement was examined at mineral addition levels of 10 wt.%, 20 wt.% and 30 wt.%, respectively. The benefits of ASA surface-treated calcium carbonate over untreated mineral were exemplified by comparing the thermomechanical properties of PLA composites at an addition level of 10 wt.%.

The results demonstrate that the addition of ASA-treated calcium carbonate has distinctive advantages over untreated mineral, in terms of both processability and material properties. First, it enables better control of the process by reducing the flowability of the PLA matrix. Furthermore, it improves the fiber adhesion with the PLA, allowing for a substantial reduction of PLA content in the composite formulation while maintaining material properties.

这项研究研究了烯基琥珀酸酐（ASA）表面处理的碳酸钙作为功能性矿物添加剂在木纤维（WF）增强的PLA复合材料中的应用。在矿物添加量分别为10重量％，20重量％和30重量％的情况下，检查了添加量对具有40重量％纤维增强的PLA复合材料的材料性能的影响。通过比较添加量为10 wt％的PLA复合材料的热机械性能，可以例证出ASA表面处理的碳酸钙比未处理的矿物的优势。

结果表明，就可加工性和材料性能而言，添加ASA处理的碳酸钙比未处理的矿物具有明显的优势。首先，它可以通过降低PLA基质的流动性来更好地控制过程。此外，它改善了纤维与PLA的粘合力，从而在保持材料性能的同时，大幅降低了复合配方中PLA的含量。