天然植物纤维预处理方法对水泥基复合材料性能的影响研究进展

Effect of Pretreatment Method of Natural Plant Fibers on Properties of Cement-Based Materials-A Short Review

近年来,天然植物纤维用来增强水泥基材料受到了广泛关注。与合成纤维相比,天然植物纤维具有绿色环保、质量轻、低成本、可再生等众多的优点,在许多领域都有大量应用。然而,天然植物纤维易吸水膨胀、与水泥基体相容性差,不能直接应用于水泥基材料中,需通过对天然植物纤维进行适当的预处理改善其对水泥基复合材料性能的不利影响。基于天然植物纤维的结构及材料组成,综述了天然植物纤维的水处理、涂覆处理、蒸汽处理、碱处理、酸处理、硅烷偶联剂处理、混合处理等方法以及这些预处理方法对天然植物纤维增强水泥基复合材料性能影响的最新进展。

The use of natural plant fibers to reinforce cement-based materials has attracted recent attention.Compared with synthetic fibers,natural plant fibers have many advantages,such as green environmental protection,light weight,low cost,renewable,etc.,and are widely used in many fields.However,natural plant fibers cannot be directly applied to cement-based materials since they are easy to absorb water and swell and have a poor compatibility with cement matrix.Therefore,a proper pretreatment of natural plant fibers is needed to improve the adverse effects of natural plant fibers on the properties of cement-based composites.This review represented,recent work on the development of different pretreatment methods for natural plant fibers(i.e.,water treatment,coating treatment,steam treatment,alkali treatment,acid treatment,silane coupling agent treatment and mixing treatment)based on the structure and material composition of natural plant fibers,as well as the effect of the pretreatment method on the properties of natural plant fiber reinforced cement-based composites.