北华大学学报（自然科学版）2017，Vol.18Issue(4)：450-453,4.DOI:10.11713/j.issn.1009-4822.2017.04.006
高温高压处理对落叶松脱脂率及超微结构的影响
Influence of Degrease Rate and Ultrastructure of Larix gmelini by High Temperature and Pressure
摘要
Abstract
Larix gmelini in northeast of China was selected to study the best conditions of degreasing.The degrease rate was tested under high temperature and high pressure through steam-vacuum,degreasing and drying with different thicknesses,moisture content of specimens and temperature,time and vacuum.The results showed that the degrease rate of wood treated with high temperature and pressure was significantly improved.The best degrease rate can reach 63.05% when the wood was treated at 180℃ for 40 minutes and high pressure vacuum for 30 minutes.The electron microscope observation revealed that cell walls of the wood were cracked under high temperature and pressure.Structure loosed,cracked in the pit,these ultrastructure changes are good ways to remove the resin.关键词
落叶松/高温/高压/脱脂率/超微结构Key words
Larix gmelini/high temperature/high pressure/degrease rate/ultrastructure分类
农业科技引用本文复制引用
齐华春,孙玮鸿,吴俊华..高温高压处理对落叶松脱脂率及超微结构的影响[J].北华大学学报（自然科学版）,2017,18(4):450-453,4.基金项目
吉林省教育厅科学技术研究项目(2015172) （2015172）
吉林省科技发展农业领域重点科技攻关项目(20160204028NY) （20160204028NY）
吉林省木质材料科学与工程重点实验室开放基金项目. （）
