Shrinkage of recycled paper sheet during drying

被引：6

作者：

Vieira, MGA ^{[1
]}

Estrella, L ^{[1
]}

Silva, MA ^{[1
]}

Rocha, SCS ^{[1
]}

机构：

[1] Univ Estadual Campinas, Lab Fluid Dynam & Drying, BR-13083970 Campinas, SP, Brazil

来源：

DRYING TECHNOLOGY | 2006年 / 24卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

convective drying; structural changes; structural properties; paper physical properties;

D O I：

10.1080/07373930600611943

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The properties of recycled paper are strongly affected by shrinking during drying, which depends on the drying conditions. An experimental study of the shrinkage phenomenon during drying of paper is presented. Drying experiments were conducted in a drying oven with controlled temperature. The temperature influence on shrinkage extent, porosity, and apparent density of the paper was evaluated. Structural changes on the paper surface after drying were analyzed by scanning electronic microscopy. Thickness contraction, surface, and volumetric shrinkage were correlated as a function of the moisture content. Lower apparent density values and more porous paper samples were obtained for higher temperatures.

引用

页码：465 / 474

页数：10

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