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首页> 外文期刊>Journal of pulp and paper science >Relationships Between the Local Sheet Structure and Z-Direction Compressive Characteristics of Paper
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Relationships Between the Local Sheet Structure and Z-Direction Compressive Characteristics of Paper

机译：本地纸结构与纸张的压缩特性之间的关系

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摘要

The z-direction compressive characteristics of paper were measured using a micro-indentation technique. The mean compressive tangent modulus was shown to be dependent on the apparent density and relatively independent of the densification method (refining, wet pressing and calendering) or fibre type used (kraft hardwood or softwood). The local grammage, thickness and compressive properties were measured for a set of experimental sheets. The correlation between the local apparent density and local tangent modulus was found to be insignificant. This indicated that the local tangent modulus is dependent on factors other than the apparent density. The local thickness variation was shown to be sensitive to the sheet structure. The correlation between this measurement of the sheet structure and the local tangent modulus was found to be significant, indicating that the thickness variation is more important for determining the local compressive characteristics than is the apparent density.
机译：使用微观识别技术测量纸张的Z方向压缩特性。 表明平均压缩切线模量取决于明显的密度，并且相对独立于致密方法（精炼，湿压和日历）或所使用的纤维类型（牛皮硬木或软木）。 测量了一组实验表的局部语法，厚度和压缩特性。 发现局部表观密度与局部切线模量之间的相关性无关紧要。 这表明局部切线模量取决于明显密度以外的其他因素。 局部厚度变化显示对薄板结构很敏感。 发现板结构的测量与局部切线模量之间的相关性很重要，这表明厚度变化对于确定局部压缩特性比明显的密度更为重要。

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