摘要
以杨木板材为研究对象,选择不同浓度的酚醛树脂胶粘剂、异氰酸酯胶粘剂、硅溶胶/苯丙乳液试剂为浸渍药剂,利用真空压力装置,对杨木板材进行加压浸渍强化改性,并利用扫描电镜分析木材的微观结构。研究表明,浓度35%的酚醛树脂(PF)、浓度25%的异氰酸酯(PAPI)及浓度25%的苯丙乳液配比方案较优;3种药剂处理后的杨木强化效果优异程度为:异氰酸酯(PAPI)>酚醛树脂(PF)>硅溶胶/苯丙乳液。
Take the poplar plate as the object, choose the phenol aldehyde resin adhesive to mount the medicinal preparation, the isocyanogen diethylene glycol dinitrate rubber mounts the medicinal preparation, the silicon sol/ styrene - acrylic emulsion as the modified medicament, and use of the vacuum devices to enhancement the poplar plate modification effect. The microstructure of the wood was analyzed with SEM. The results showed that： the density phenol -formaldehhyde resin （PF） of 35%, 25% the isocyanogen diethylene glycol dinitrate （PAPI） and 25% styrene -acrylic emulsion allocated proportion plan. After 3 medicament processing poplar strengthening effect outstanding degree was isocyanogen diethylene glycol dinitrate 〉 phenol - formal dehhyde resin 〉 silica sol/styrene - acrylic emulsion.
出处
《林业科技》
2009年第3期49-52,共4页
Forestry Science & Technology
基金
黑龙江省"十一五"科技攻关项目"木材高效利用与功能改良技术及设备研究"子专题--人工林杨木表面强化处理技术及设备研究(GB06B305-2)
关键词
杨木强化
浸渍
化学药剂
浓度
Poplar strengthening
Impregnation
Chemical medicament
Density
