Polyvinyl chloride/wood flour (WF)/organoclay (OMMT) ternary composites were prepared by melt blending. Chemically treated and untreated pine WF were used as filler, and organically modified montmorillonite or OMMT was added in order to get a potential synergy effect between polyvinyl chloride, untreated wood flour (UWF), or chemically treated WF. The OMMT loading in the composites was 0.5, 1, or 1.5 wt%. The chemically treated and UWF loadings were 1, 5, and 10 wt%. The composite specimens were subjected to mechanical tests (evaluation of tensile strength, elongation at break, and Shore A hardness), thermal stability (Beilstein test), processability characterizations, water resistance absorption, and morphological (optical microscopy) observations. The main results showed that the chemically treated WF were more efficient than the UWF for improving the mechanical and physical properties of polyvinyl chloride. Similar results were reported in the scientific literature. Therefore the chemically treated WF can be a cheap, eco-friendly, and renewable substitute for chalk as a filler which is normally used in the fabrication of Polyvinylchloride based cable insulators.

通过熔融共混制备聚氯乙烯/木粉（WF）/有机粘土（OMMT）三元复合材料。使用化学处理和未处理的松木 WF 作为填料，并添加有机改性蒙脱石或 OMMT，以获得聚氯乙烯、未处理的木粉 (UWF) 或化学处理的 WF 之间的潜在协同效应。复合材料中的 OMMT 负载量为 0.5、1 或 1.5 重量％。化学处理的和 UWF 的加载量为 1、5 和 10 重量％。对复合材料试样进行机械测试（拉伸强度、断裂伸长率和肖氏 A 硬度评估）、热稳定性（Beilstein 测试）、加工特性、耐水性和形态（光学显微镜）观察。主要结果表明，化学处理的 WF 比 UWF 更有效地改善聚氯乙烯的机械和物理性能。科学文献中也报道了类似的结果。因此，经过化学处理的 WF 可以作为一种廉价、环保且可再生的白垩替代品，作为通常用于制造聚氯乙烯电缆绝缘体的填料。