INFLUENCE OF MICROFIBRIL ANGLE ON LONGITUDINAL SHRINKAGE-MOISTURE CONTENT RELATIONSHIP
INFLUENCE OF MICROFIBRIL ANGLE ON LONGITUDINAL SHRINKAGE-MOISTURE CONTENT RELATIONSHIP
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DOI：
10.1007/bf00357051
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发表时间：
1972-01-01
影响因子：
3.4
通讯作者：
MEYLAN, BA
中科院分区：
文献类型：
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作者：
MEYLAN, BA
在含水率从0到25%每增加5%的情况下，对44个辐射松样品进行了增量纵向收缩测量。样品的平均微纤丝角为10°~40°。数据以一组曲线族的形式表示，对于每个水分含量，都是相对于微纤丝角的增量收缩。这一系列曲线与Barber[1968]和Cave[1972]在理论上得出的结果非常接近，他们认为细胞壁是嵌入在基质中的纤维素微纤维的纤维复合材料，基质在润湿时膨胀，其剪切模数是水分的函数。
Incremental longitudinal shrinkage has been measured on 44 samples ofPinus radiataat each 5% increment of moisture content from 0 to 25%. The samples range in mean microfibril angle from 10° to 40°. The data is presented in the form of a family of curves, of incremental shrinkage against microfibril angle, for each moisture content. This family of curves compares very closely with those derived theoretically by Barber [1968] and Cave [1972] based on considering the cell wall as a fibre composite of cellulose microfibrils embedded in a matrix which swells on wetting and whose shear modulus is a function of moisture content.