CAJ | 학술논문

通过自制的碱浸渍扩散装置对杨木横向碱浸渍扩散过程进行了研究。原料微观结构电镜分析发现，杨木边材的浸渍扩散性能优于心材。浸渍实验表明，杨木横向碱浸渍扩散过程可分为反应主导、反应与扩散并存、扩散主导3个阶段；同时，通过单因素实验分析了温度、NaOH浓度、试样厚度、试样含水率等4个因素对碱浸渍扩散过程的影响。结果表明，温度与厚度对碱浸渍过程影响最大，NaOH浓度对与浸渍反应过程紧密相关的拐点值有一定影响，而含水率对碱浸渍扩散过程影响较小，但含水率饱和条件下的拐点值明显低于非饱和条件下的拐点值。
통과자제적감침지확산장치대양목횡향감침지확산과정진행료연구。원료미관결구전경분석발현，양목변재적침지확산성능우우심재。침지실험표명，양목횡향감침지확산과정가분위반응주도、반응여확산병존、확산주도3개계단；동시，통과단인소실험분석료온도、NaOH농도、시양후도、시양함수솔등4개인소대감침지확산과정적영향。결과표명，온도여후도대감침지과정영향최대，NaOH농도대여침지반응과정긴밀상관적괴점치유일정영향，이함수솔대감침지확산과정영향교소，단함수솔포화조건하적괴점치명현저우비포화조건하적괴점치。
The transverse alkali impregnating diffusion of poplar was studied with the self-made equipment. According to the scanning electron microscopy ( SEM) analysis of the microstructure of raw material, impregnating diffusion perform-ance of sapwood was better than the performance of heartwood. It was showed that there were three stages in the process of the transverse alkali impregnating diffusion of poplar, namely reaction-driven stage, reaction and diffusion coexistence stage and diffusion-driven stage. Meantime, the effects of main factors, which included temperature, concentration of NaOH, thickness of sample and moisture of sample, were investigated. The results showed that temperature and thickness of sample had significant effects on the alkali impregnating diffusion process. While, the concentration of NaOH influenced the inflection point mainly which had close link with reaction rate in the impregnating process. The moisture of sample had not remarkable influence on the process. But the inflection point value of water saturated sample was higher than that of water unsaturated samples in the moisture factor experiment.