初含水率对杉木浸渍重量变化率、含水率和密度的影响

The effects of the initial moisture content of the Chinese Fir on the weight change rate, moisture content and density of the impregnated wood

以杉木为试材，以树脂型多功能改性剂（BLW）为改性剂，采用真空．加压．真空的浸渍方法，研究了初含水率对杉木浸渍增重率、改性固化增重率和改性材密度、含水率的影响。结果表明：随着初含水率的减小，杉木浸渍增重率和改性固化增重率都增大，最大值分别为215．99％和196．77％；浸渍材在干燥固化过程的逸散成分主要是水分和改性剂，逸散率在40．24％19．22％范围内；在实验条件下建立了函数关系。

In order to research the effects of the initial moisture content on the impregnated and curing weight gain rate and also the density and moisture content of the modified wood, BLW was used to impregnate the Chinese Fir, by the method of vacuum-pressure-vacuum. The results indicated that with the decreasing of the initial moisture content, the impregnated and curing weight gain rate of the Chinese Fir were both increasing, with the maximum value 215.99% and 196.77% respectively. During the curing process of the impregnated wood, the main dissipation components were water and modifier, its dissipation rate ranged was from 40.24% to 19.22%. In this study, the function relationship under the experiment conditions was established, which had certain guiding significance in the practical production.