环境湿度对纸板水分及其力学性能影响的实验研究

Influence of Environmental Humidity on Water Content and Mechanical Properties of Corrugated Paperboard

为了考察环境湿度、瓦楞纸板水分与纸板力学性能之间的关系,选择对瓦楞纸板进行不同环境条件的温湿度处理,即试验环境选择温度为23℃,相对湿度分别为40%,50%,70%,80%及90%等5种环境处理条件,样品处理完后按照相关标准测试水分、耐破强度、边压强度。测试结果表明,随着环境相对湿度的提高,纸板水分的增加,纸板的耐破强度及边压强度随之下降,且边压强度的下降程度更为明显。

Corrugated paperboard was treated under different environmental conditions of temperature and humidity, which were temperature of 23 ℃ , relative humidity of 40% , 50% , 70% , 80% , and 90%. Water content, bursting strength, and edgewise crush resistance of the sample were determined in accordance with the relevant standards imme-diately after the treatment. Test results showed that with the humidity increase, the water content increases, the burst-ing strength and edgewise crush resistance of corrugated paperboard become poor, and the downtrend of edgewise crush resistance is more obvious.