摘要
对不同热压工艺条件下,以中温固化酚醛树脂为胶黏剂,采用"热进热出"和"冷进冷出"热压工艺压制的竹胶合板的主要力学性能进行了检测和比较。研究结果表明,中温固化型酚醛树脂应用于竹胶合板生产是可行的,产品的静曲强度、弹性模量、保留强度等力学性能均达到或超过了国家建设部行业标准(GJ/T 165-2004)的指标,且采用"冷进冷出"工艺比"热进热出"工艺具有更好的效果。经比较,确定中温固化酚醛树脂竹胶合板的最佳热压工艺条件为:热压温度110℃、热压时间70 s/mm、单位压力3.5 MPa。
Under different conditions of hot-pressing process, with the intermediate temperature curing phenolic resin as the adhesive, the ＂heat into heat out＂ process and ＂cold into cold out＂ as hot-pressing processes, the main physical and mechanical properties of bamboo plywood were inspected and compared. The researching results show that it is feasible that intermediate temperature curing phenolic resin was used in plywood production, the mechanical properties such as bending strength, elastic modulus, retained strength, all met or exceeded the National Ministry of Construction Industry Standard （GJ/T 165-2004）, and the ＂cold into cold out＂ process had better effects than the ＂hot into hot out＂ process. By comparison, the best hot-pressing conditions of intermediate temperature phenolic resin bamboo plywood is pressing temperature 110 ℃, pressing time 70 s/mm, unit pressure 3.5 MPa.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2012年第6期168-171,共4页
Journal of Central South University of Forestry & Technology
基金
中南林业科技大学木材科学与技术国家重点学科资助项目
关键词
中温固化酚醛树脂
热压工艺
竹胶合板
力学性能
intermediate temperature curing phenolic resin~ hot-pressing process bamboo plywood, mechanical properties
