SONG Xiyan，LIU Kunjian，TANG Xiaojie，LIU Kefei，WU Qingding

(Research Institute of Material Forming Technology，Central South University of Forestry and Technology，Changsha 410004，China)

Abstract:In order to prepare the composite material that meets the requirement of anti-glare panel of highway,two kinds of reinforce composite factors,sintered epoxy resin powder and nano-corundum powder,were added into the bamboo powder to prepare the bamboo composite material,and its yield strength,water absorption rate,fracture morkhology,corrosion resistance and weather resistance were analyzed.The result show that when the content of epoxy resin powder and nano-corundum powder are 9.8% and 8% respectively,the static bending strength of bamboo composite specimens reach 81.73 MPa and the water absorption rate is 0.63%,the fracture morphology is dense and had ductile fracture characteristics.Soaked in 10% NaOH solution and 30% H2SO4 solution for 168 h,no wrinkling,bubbling,cracking,softening,dissolving and other phenomena occur,and it has reached the corrosion resistance requirements.The thermal weight loss performance of the test piece is better than that of the warm compression blank of pure bamboo powder,and its free water volatilization temperature is as high as 82 ℃,which has good adaptability to the summer high temperature environment of the expressway.

Keywords:bamboo composite material;anti-glare panel;warm compaction;response surface method;thermogravimetric analysis;weather resistance

中图分类号：TB44                               文献标志码：A

文章编号：1008-5548(2020)05-0033-08

DOI:10.13732/j.issn.1008-5548.2020.05.006

收稿日期： 2019-12-30，修回日期：2020-03-10，在线出版时间：2020-07-07 15:25。

基金项目：湖南省自然科学基金/常德市联合基金项目，编号：2020JJ6065；湖南省重点领域研发计划项目，编号：2019GK2244；湖南省交通运输厅科技进步与创新项目，编号：[2017]871号-201731。

第一作者简介：宋喜艳(1997—)，女，硕士研究生，研究方向为环境功能材料成形理论与技术。E-mail：1272707306@qq.com。

通信作者简介：吴庆定(1963—)，男，教授，博士，博士生导师，研究方向为材料成形理论与技术。E-mail：wudingle@126.com。