工程胶合木胶合成型工艺优化研究  

Study on optimized gluing and forming process for Larix gmelini engineering glued laminated timber

作　　者：胡南[1] 李贤军[1] 谢力生[1] 周先雁[1] 刘佳权[1] 桂必升 

机构地区：[1]中南林业科技大学材料科学与工程学院,湖南长沙410004

出　　处：《中南林业科技大学学报》2016年第1期142-145,共4页Journal of Central South University of Forestry & Technology

基　　金：国家林业公益性行业科研重大专项(项目批准号201304504)

摘　　要：以兴安落叶松Larix gmelini为原材料,以间苯二酚树脂为胶粘剂,较系统地研究了压力和涂胶量对落叶松胶合木胶合性能的影响规律,获得了优化的胶合工艺参数。结果表明:胶合木试件的剥离率随着胶合压力和涂胶量的减小而增大;剪切强度和木破率随着胶合压力的增加呈现出先增加后降低的变化趋势,随涂胶量的增加呈现先增加后保持不变的变化趋势;胶合木胶合成型的优化工艺参数为胶合压力1.25 MPa、双面涂胶量300 g/m2。Larix gmelini woods were used as the tested materials and resorcinol resin as the adhesive, the engineering glued laminated timbers were made out. The influence laws of glue spread amounts and pressure to the engineering glued laminated timber were systematically studied. The research results show that the delamination ratios of glued laminated timber specimens increased with the decrease of the gluing pressure and glue spread quantity; The changing trend of shear strength and its corresponding wood failure percentage were consistent. The shear strength and wood failure percentage of specimens increase firstly and then decrease with the increase of pressure; They increased firstly and then remained unchanged with the increase of glue spread quantity. The optimized process parameters for the engineering glued laminated timber were： gluing pressure 1.25 MPa and double-sided glue spread quantity 300 g/m^2.

关 键 词：落叶松 胶合木 胶合工艺 胶合压力 涂胶量 

分 类 号：S791.222[农业科学—林木遗传育种] S781.65[农业科学—林学]