森林工程2024，Vol.40Issue(1)：106-113,8.DOI:10.3969/j.issn.1006-8023.2024.01.012
油蜡热处理对木材物理性能及尺寸稳定性的影响
Effect of Oil Wax Heat Treatment on Physical Properties and Dimensional Stability of Wood
摘要
Abstract
In order to explore the effect of heat treatment of vegetable oil wax on the physical properties and dimensional stability of wood of different tree species,Abies nephrolepis Maxim.,Larix gmelinii and Diospyros celebica were taken as the research objects,and the independently prepared vegetable oil wax solution was used as the heating medium.The wood was heat treated at different tempera-tures(140,170,200℃)for 4 hours,and then the vegetable oil wax was fully cooled to ensure that it entered the interior of the wood.The internal structure was observed by scanning electron microscope.The results showed that the room temperature cooling stage was the key of wood oil wax heat treatment.At this stage,a large amount of vegetable oil wax entered the interior of wood,which was mainly reflected in the change of wood specimen weight percentage gain(WPG).The maximum color change(ΔE∗)of three kinds of wood after combined heat treatment with vegetable oil and wax were 48.24,40.67,5.95.The surface hydrophobicity was improved steadily,and the water contact angle(WCA)was increased to about 70°.The tangential and radial moisture expansion rates and vol-ume expansion rates of different tree species were reduced to varying degrees,and the anti swelling efficiency(ASE)was effectively improved,with the maximum increase of 49.64%,48.24% and 38.86% for the three kinds of wood,indicating that vegetable oil wax heat treatment can improve the dimensional stability of wood.关键词
植物油蜡/热处理/木材/物理性能/尺寸稳定性Key words
Vegetable oil wax/heat treatment/wood/physical property/dimensional stability分类
轻工纺织引用本文复制引用
蒋金成,李璟,张镜元,王秉泉,战剑锋..油蜡热处理对木材物理性能及尺寸稳定性的影响[J].森林工程,2024,40(1):106-113,8.基金项目
中央高校基本科研业务费C类资助项目(2572019CJ01). （2572019CJ01）
