户外用竹基纤维复合材料加速老化耐久性评价  

Performance of Exterior Crushed Bamboo-Mat Composite after Accelerated Aging Test

作　　者：张亚慧[1,2] 祝荣先[1,2] 于文吉[1,2] 任丁华[1,2] 

机构地区：[1]中国林科院木材工业研究所 [2]国家林业局木材科学与技术重点实验室,北京100091

出　　处：《木材工业》2012年第5期6-8,共3页China Wood Industry

基　　金：中央级公益性科研院所基本科研业务费专项基金(CAFINT2011K03)

摘　　要：为了给竹基纤维复合材料在户外环境的使用提供参考数据,对利用3～4年生毛竹和慈竹生产的竹基纤维复合材料,参照美、中两种标准(ASTM D 1037-06a和GB/T 17657-1999)方法进行循环试验,测定经过循环暴露试验后,材料的力学性能和尺寸稳定性。试验结果表明,竹基纤维复合材料的性能优于现有户外商业化重组竹产品。A crushed bamboo-mat composite has a high potential in exterior structural applications. The mechanical properties and dimensional stability of the bamboo composites, after an accelerated six wet-dry cycle and water boil tests, were studied. The results showed that the average modulus of rupture, modulus of elasticity, and shear strength of moso-bamboo composites, after the accelerated test, were no less than 120 MPa, 13 000 MPa, 15 MPa, respectively. The thickness swelling of the composite was no more than 5%. The mechanical performance of Neosinocalarnus affinis bamboo composite, after the accelerated test, was even better.

关 键 词：竹基纤维复合材料 户外 加速老化耐久性 循环暴露试验 力学性能 尺寸稳定性 

分 类 号：TB332[一般工业技术—材料科学与工程]