PDF《竹长条加工剩余物制备重组竹材的应用技术研究》

第46 卷第

4 期2012 年7月生摇 物摇 质摇 化摇 学摇 工摇 程Biomass Chemical Engineering Vol.

46 No.

4 July

2012 ・研究报告― ― ―生物质材料・ 竹长条加工剩余物制备重组竹材的应用技术研究 摇摇收稿日期:2012-03-12 摇摇基金项目:江苏省自然科学基金资助项目(BK 2006522);

江西省科技攻关项目(

050005 ) 摇摇作者简介:孙恩惠(1984-),女,安徽宿州人,研究实习员,硕士;

研究方向:农林业废弃物资源化利用与木材胶黏剂研究;

联系

电话: 15050525155;

E鄄mail:muhehome@ gmail. com 摇 *通讯作者:孙丰文(1967-),博士,研究员;

研究方向:木材胶黏剂和竹木塑复合材料;

E鄄mail:sunfw2188@ vip. sohu. com. 孙恩惠1,2 , 孙丰文2 * (1. 江苏省农业科学院 农业资源与环境研究所, 江苏 南京 210014;

2. 南京林业大学 竹材工程研究中心, 江苏 南京 210037) 摘摇 要:选取竹长条加工剩余物为原料,采用平衡区组正交试验,分析了施胶量、碱处理时间、热压压力以及热压时间对 重组竹材各项性能指标的影响规律,得出较佳胶合工艺参数. 为了得到更好质量的板材,在此基础上改进了其它因素的 影响,如预压压力、时间、含水率以及板材幅面. 试验表明:施胶量为 8. 5% ,碱处理时间

15 h,热压时间为

18 min 的前提 下,增大热压压力,提高预压压力、时间及板材规格,重组材各项性能均大有改进. 在不去除青黄的前提下通过对竹长条 加工剩余物进行改性处理,经过优化的产品静曲强度及弹性模量符合国家标准,不仅充分利用了竹材资源且可以降低经 济成本,同时也为新型的木工胶黏剂的推广提供相关依据. 关键词:竹长条加工剩余物;

重组竹材;

热压工艺;

性能检测 中图分类号:TQ35摇摇摇摇摇摇摇文献标识码:A摇摇摇摇摇摇摇文章编号:1673-5854(2012)04-0011-06 Application Technology of Recombinant Material Prepared by Processed Remainder of Bamboo Strip SUN En鄄hui1,2 , SUN Feng鄄wen2 (1. Institute of Agricultural Resource and Environmental Sciences, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;

2. Bamboo Engineering Research Center, Nanjing Forestry University, Nanjing 210037, China) Abstract:In order to make full use of resources, the processed remainder of bamboo strip was selected as raw material. The effects of glue鄄spreading, processing time with alkali, hot鄄pressing pressure and time on the performance of reconstituted鄄bamboo were investigated. Some better parameters were obtained. In order to get better board, the influence of others factors, i. e. pre鄄stressed, time, moisture content and specification etc. were improved. The results showed that the properties of reconstituted鄄bamboo were greatly improved while increasing hot鄄pressing pressure, pre鄄stressed, preset鄄time and specification. The pre鄄condition is glue鄄spreading 8. 5% , processing time with alkali

15 h and hot鄄pressing time

18 min. The static bending strength and modulus of elasticity can meet national standards through the modification of bamboo strip processing residues without the qinghuang removed. This method can make full use of bamboo resources and reduce the economic cost. It also provides evidence to promote new wood adhesives. Key words:processed remainder of bamboo strip;

recompounded鄄bamboo;

hot鄄pressing technology;

performance test 竹子是森林资源的重要组成部分,分布广、生长快、可再生能力强、用途广泛、经济价值高. 我国是 世界竹子生产中心,竹林面积居世界第一位,根据第四次森林资源普查结果,我国现有竹林面积 379.