文献类型：期刊文献

中文题名：压缩空气微爆破预处理对橡胶木单板染色效果的影响

英文题名：Influence of Compressed-air Explosion Pretreatments on Dyeing Rubber Wood Veneers

作者：胡极航[1] 刘君良[1]

第一作者：胡极航

机构：[1]中国林科院木材工业研究所

年份：2019

卷号：33

期号：5

起止页码：11-15

中文期刊名：木材工业

外文期刊名：China Wood Industry

收录：CSTPCD;;北大核心:【北大核心2017】；

基金：中央级公益性科研院所基本科研业务费专项资金“木质复合材料与化学资源化利用领域培强专项——橡胶木多效防护关键技术”(CAFYBB2017ZX003-04)

语种：中文

中文关键词：橡胶木;单板;压缩空气微爆破;预处理;木材染色;上染率;表面色深值

外文关键词：Rubber wood;veneer;compressed-air explosion;pretreatment;wood dyeing;dye-uptake;surface darkness

分类号：S781;S794.1

摘要：为了提高木材的渗透性,改善木材染色效果,采用压缩空气微爆破进行橡胶木单板预处理,探究微爆破压力、处理次数对单板染色效果的影响;采用电镜和压汞分析法,表征处理前后单板表面形貌及微观孔隙。结果表明,处理压力对单板上染率和表面色深影响显著,在优化工艺条件下(压力0.4 MPa、爆破4次),上染率和表面色深值分别提高22.76%和19.69%;处理后木材的孔隙率和平均孔径均明显增大,比表面积略大,有利于染料的渗透。
Compressed-air explosion pretreatments were used to improve the permeability of rubber wood veneers.Dyeing effects of the rubber wood veneer samples before and after treatments were compared.Under different pressure and explosion times,surface characteristics and micro pore of the veneer samples were observed with electron microscopy and mercury intrusion porosimetry.The results showed that the pressure of the compressed-air explosion treatments had significant effect on dye-uptake and surface darkness of the rubber wood veneer samples.Under optimal pretreatment conditions e.g.0.4 MPa of air pressure for 4 times,the dye-uptake and surface darkness of the samples increased by 22.76%and 19.69%,respectively.The mercury intrusion porosimetry results showed that the porosity and average pore diameter of the samples increased significantly and the specific surface area was slightly enlarged after the pretreatment,which was useful for dyes to better penetrate into wood.