| 玻璃纤维增强结构用单板层积材热压工艺研究 |
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| 引用本文： | 徐正东,赵俊石,张双保.玻璃纤维增强结构用单板层积材热压工艺研究[J].林业机械与木工设备,2012(5):37-40. |
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| 作者姓名： | 徐正东 赵俊石 张双保 |
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| 作者单位： | 1. 北京林业大学材料科学与技术学院,北京,100083
2. 北京市怀柔区教育委员会,北京,101400 |
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| 基金项目： | 2010北京市教委科学研究与科研基地建设项目，林业行业标准“胶结处木材破坏率的测定方法” |
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| 摘 要： | 通过玻璃纤维增强速生杨木制备杨木单板层积材(LVL),可提高杨木的强度等级,使其达到结构集成材层板的使用要求。采用正交实验方法,研究温度、时间、压力、偶联剂浓度、涂胶量对杨木单板层积材弹性模量、静曲强度、剪切强度的影响,其中主要研究热压工艺对力学强度的影响,得出的最优工艺参数为:热压温度130℃、时间100s/mm、压力1.2MPa。
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| 关 键 词： | 单板层积材 玻璃纤维 热压参数 力学性能 |
Study of the Hot Pressing Technology of LVL for Fiberglass Reinforced Structures |
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| XU Zheng-dong,ZHAO Jun-shi,ZHANG Shuang-bao.Study of the Hot Pressing Technology of LVL for Fiberglass Reinforced Structures[J].Forestry Machinery & Woodworking Equipment,2012(5):37-40. |
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| Authors: | XU Zheng-dong ZHAO Jun-shi ZHANG Shuang-bao |
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| Institution: | 1 (1.College of Material Science and Technology,Beijing Forestry University,Beijing 100083,China;2.Beijing Huairou Education Commission,Beijing 101400,China) |
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| Abstract: | Fiberglass can be used to reinforce poplar LVL made of fast-growing poplar to improve the strength grade of poplar and enable it to meet the requirements for structural glued-laminated timber.Using an orthogonal experiment method,the effect of temperature,time,pressure,coupling agent concentration and adhesive consumption on the elastic modulus,bending strength and shear strength of poplar LVL is studied,with emphasis placed on the effect of hot-pressing technology on the mechanical strength of poplar LVL.The optimal process parameters are hot-pressing temperature 130℃,time 100s/mm and pressure 1.2MPa. |
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| Keywords: | laminated veneer lumber fiberglass hot-pressing parameters mechanical strength |
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