竹龄对生物质风电叶片复合材料性能的影响  

Effect of bamboo at different of ages on the biomass composite material performance of the wind turbine blades

作　　者：黄晓东[1] 谢敏芳[1] 刘雁[1] 

机构地区：[1]福建农林大学材料工程学院,福建福州350002

出　　处：《福州大学学报（自然科学版）》2011年第1期90-95,共6页Journal of Fuzhou University(Natural Science Edition)

基　　金：福建省自然科学基金资助项目(2009J01229)

摘　　要：利用动态热机械分析仪检测3～7 a竹龄毛竹的常温存储模量值,用于确定最佳的风电叶片复合材料增强相,再按不同竹龄将毛竹制成竹青层积材,利用INSTRON 5582万能力学试验机对竹青层积材分别进行检测.试验结果表明,随着毛竹竹龄的增加,毛竹竹青试件的常温存储模量值也相应增加,即在常温条件下,毛竹竹青的刚性随毛竹竹龄的增加而增加,但是毛竹到了一定竹龄后,其竹青的刚性渐渐趋于稳定.5～7 a生的成熟毛竹的竹青常温存储模量位于10 GPa数量级以上,一般能满足作为风力发电叶片复合材料中增强相材料的使用.由5～7 a生的成熟毛竹制成的竹青层积材复合材料,其物理力学性能均达到或超过目前国外风电叶片在用的常规木材/环氧层积材的特性.In order to determine the optimal reinforcement phase of wind turbine blades composite material, the bamboos at 3 - 7 years were tested by a Q800 dynamic mechanical thermal analysis （DMA） instrument. The outer faces of bamboo board as the reinforcement of wind turbine blades composite materials were tested. The outer faces of bamboo board as laminated fabricated at different of ages were tested by INSTRON 5582. The results showed that the storage modulus of the outer layer of bamboo under air - temperature conditions increased with age of bamboo. In other words, the stiffness of bamboo increased with age of bamboo. However; up to a certain age, the stiffness of the outer layer of bamboo gradually remains constant. General speaking, the outer layer of bamboo with 5 - 7 years old has a storage modulus on the order of 10 GPa under air -temperature conditions, which is definitely qualified as the reinforcement material for the wind turbine blades composites, that mechanical properties of wind turbine blades composite materials made of 5 - 7 years old the outer faces of bamboo board as laminated could met or exceeded laminated wood / epoxy lumber used in the world.

关 键 词：竹龄 风电叶片 复合材料 竹青 

分 类 号：S781.6[农业科学—木材科学与技术]