| 木质剩余物轨枕复合材料老化性能 |
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| 引用本文： | 王志勇,肖生苓,杨丽丽.木质剩余物轨枕复合材料老化性能[J].东北林业大学学报,2009,37(8). |
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| 作者姓名： | 王志勇 肖生苓 杨丽丽 |
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| 作者单位： | 1. 中国林产品经销公司,北京,100029
2. 东北林业大学 |
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| 摘 要： | 针对木质剩余物轨枕复合材料,采用美国标准ASTM D 1037的6循环加速老化试验法对产品进行耐老化性能试验,通过对轨枕复合材料的24h吸水厚度膨胀率的变化、静态弯曲力学性能的变化以及内结合强度变化的分析.结果表明:24h总的吸水厚度膨胀率不超过30%,纵向静曲强度(RMO),弹性模量(EMO)的保留值分别为72.63、5030MPa,横向静曲强度(RMO), 弹性模量(EMO)的保留值分别为39.79、3770MPa,内结合强度保留值为1.02,保留率为38%,均满足ASTM D 1037标准要求.
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| 关 键 词： | 轨枕 木质剩余物 老化性能 复合材料 |
Aging Properties of Sleeper Composites Made from Timber Residuals |
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| Wang Zhiyong,Xiao Shengling,Yang Lili.Aging Properties of Sleeper Composites Made from Timber Residuals[J].Journal of Northeast Forestry University,2009,37(8). |
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| Authors: | Wang Zhiyong Xiao Shengling Yang Lili |
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| Institution: | Wang Zhiyong(China Selling Corporation of Forest Products,Beijing 100029,P.R.China),Xiao Shengling,Yang Lili(Northeast Forestry University) |
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| Abstract: | Six-cycle accelerated aging test in ASTM D 1037 was used to study the aging properties of sleeper composites made from timber residuals in terms of thickness swelling after 24-hour water soak,static bending properties,and inner bond strength.The indexes were obtained as thickness swelling after 24-hour water soak less than 30 percent,the retention values of longitudinal modulus of rupture(MOR) and modulus of elasticity(MOE) 72.63 MPa and 5 030 MPa,horizontal MOR and MOE 39.79 MPa and 3 770 MPa,inner bond st... |
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| Keywords: | Sleeper Timber residuals Aging properties Composites |
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