摘要:木塑復合材料是當代工業基礎材料廢物利用的最佳科研成果在工業生產上的應用。是一種天然的綠色環保材料，具有強度高、價格低廉等優點，它可廣泛運用于包裝、建筑等行業，可制成板材、型材、片材等并具有木材的加工優點。

　　　本文研究木粉用量以及偶聯劑 KH550用量對復合材料性能的影響。結果表明：隨著木粉加入量的增加，復合體系的拉伸、彎曲、熱變形溫度等性能得到改善。采用KH550硅烷偶聯劑處理木粉之后，偶聯劑發生水解之后生成的硅醇鍵（-Si（OH）3）與木粉表面的羥基（-OH）發生氫鍵作用和脫水反應，從而提高了木粉與PVC 的界面相容性，提高了材料的性能。木粉含量對復合材料體系的表觀粘度會產生較大影響，復合材料的剪切粘度隨著木粉含量的增加而增加，木粉的加入使得復合材料大分子鏈的無規纏結程度更加強烈，剪切粘度增大，復合材料的流動性能降低。

關鍵詞：木塑復合材料；PVC；木粉；ACR改性劑；硅烷偶聯劑；性能

Abstract：Wood-fiber plastics composites is the best application of modern basic waste materials in industrial manufacture. It is also a kind of natural green environmental, which have some characteristics such as high strength, cheap. It can be used in packing and construction industries and can be extruded into board, profile and sheet materials with the same processing merits of wood. However, the compatibility of wood flour and thermoplastic was bad.

　　　The paper investigated the influence of wood flour content and coupling agent KH550 content on the mechanical properties of the composites. The results showed that the properties of composite materials such as tensile, bending, impact and heat deflection temperature were improved as wood flour dosage increased. Study found that wood flour content on the apparent viscosity of composite materials will have a greater impact, the shear viscosity of composites with wood flour content increases, reducing the mobility of composite materials. The addition of wood flour composite material makes the random molecular chain entanglement more intense level of shear viscosity.

Key words: WPC；PVC；wood flour；ACR modifiers；silane coupling agent；mechanical properties