摘要
以不同量比合成乙二醛-尿素浸渍树脂(GU),开发环保型树脂用于橡胶木改性。结果表明,当乙二醛、尿素的量比(G/L)为1.6时,树脂合成反应完全,其固体含量、黏度、水溶性、储存期等综合性能良好。将该树脂调配成质量分数30%的溶液,用于浸渍处理橡胶木,与未处理材相比,改性材的弹性模量和抗弯强度分别提高了21.5%和32.6%,尺寸稳定性(ASE)达到65.9%,改性效果良好。
Glyoxal-urea resins(GU)were synthesized from glyoxal and urea at six ratios respectively,and then used for rubberwood modification.The results showed that at G∶U ratio of 1.6,the resin performed best in the solid content,the viscosity,the water solubility and the storage life.Rubberwood samples were impregnated with the GU resin at a concentration of 30%.Modulus of elasticity(MOE)and modulus of rupture(MOR)of the treated rubberwood samples were increased by 21%and 32.5%,respectively,comparing with untreated control samples.Dimensional stability(ASE)of the treated samples reached 65.9%as well.
作者
胡极航
刘君良
范书桐
HU Ji-hang;LIU Jun-liang;FAN Shu-tong(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China;College of Materials Science and Technology,BeiHua University,Jilin 132113,Jilin,China)
出处
《木材工业》
北大核心
2020年第2期6-9,共4页
China Wood Industry
基金
中央级公益性科研院所基本科研业务费专项资金“橡胶木多效防护关键技术”(CAFYBB2017ZX003-04)
