Effects of Proanthocyanidin (Condensed Tannin)-rich Radiata Pine Bark Powder added to Plywood Binder Resins
Introduction Radiate pine accounts for nearly 50% of imported log in Korea and it mainly uses for structural materials, pulp and paper, and wood composite materials. When it uses as law materials for other applications, the bark is removed from the log to reduce faults possible to be made on the manufacturing process. The removed bark mostly uses as fuel, mulch, or soil conditioner. Another usage of bark is in various types of wood-based materials, and many attempts to use bark have been made. Especially, when prepares plywood, barks are added as fillers to glue mix. Generally, filler fills pores and other holes on veneer surfaces, and eventually improves workability in manufacturing process and properties o~ product. Among various wood barks, radiate pine barks are rich in proanthocyanidins, a class of polyphenols. Consequently, the use of radiate pine bark includes the utilizing of the natural polyphenols as an adhesive substitute for resin solids. In this study, therefore, we examined possible usage of radiate pine bark as adhesive component.
Sang-Min Lee Sang-Bum Park Sung-Phil Mun
Korea Forest Research Institute (KFRI)/Department of Forest Products, 57 Hoegiro, Dongdaemun-gu, Seo Chonbuk National University/Division of Forest Science, Jeonju, Jeonbuk, 561-756, Republic of KOREA
国际会议
International Symposium on Wood Science and Technology(IAWPS 2008)(国际木材产品学会联合会2008学术研讨会)
哈尔滨
英文
449-450
2008-09-27（万方平台首次上网日期，不代表论文的发表时间）