重组竹材用酚醛树脂渗透性能研究  

Study on Permeability of Phenol-formaldehyde Resin for Reconstituted Bamboo Lumber

作　　者：张建[1] 李琴[1] 袁少飞[1] 王增 于海霞 王洪艳[1] 

机构地区：[1]浙江省林业科学研究院浙江省竹类研究重点实验室,浙江杭州310023 [2]浙江省林产品质量检测站,浙江杭州310023

出　　处：《林业机械与木工设备》2015年第2期22-25,共4页Forestry Machinery & Woodworking Equipment

基　　金：浙江省与中国林业科学研究院省院合作林业科技项目(2011SY01);浙江省科技厅院所专项项目(2012F20024;2015F50051);浙江省科技厅竹产业科技成果转化项目(2012T201-06)

摘　　要：对四种重组竹材用酚醛树脂在不同胶液固体含量、浸胶温度和浸胶时间等条件下进行竹材浸胶试验。结果表明:胶液固体含量增加时,竹材浸胶量先增大后减小,固体含量25%时浸胶量最大,达到22.6%;浸胶温度升高浸胶量增加,浸胶温度55℃为宜;浸胶时间对浸胶量影响不呈现规律性,浸胶时间需要在60 min以上;树脂分子量大小对渗透性有一定影响,分子量偏小、分布相对较窄且均匀时,渗透性较好。Four kinds of phenol-formaldehyde resins for reconstituted bamboo lumber are chosen to study the resin soaking testing under different conditions,i.e. resin solid content,soaking temperature and soaking time. The results show that the enhanced resin solid content cause the resin soaking content of bamboo strip to increase at first,but decrease afterwards.When it is 25%,maximum resin soaking content is 22.6%. The soaking temperature is higher,the resin soaking content is bigger,and the optimal soaking temperature is 55 ℃. The soaking time has no obvious effect on the resin soaking content,but it needs to exceed 60 min.The molecular weight has definite influence on permeability,and the permeability becomes better when the molecular weight of adhesive is smaller,and has symmetrical distribution.

关 键 词：重组竹材 酚醛树脂 渗透性能 浸胶量 

分 类 号：TS612[轻工技术与工程]