The Micro-Structure of the Castor Stalk Based Panel

Abstract

Castor- stalk is one kind of excellent wood materials can be used to make the wood based panel and substitute for the wood resource, reducing the pollution caused by castor stalk-burnt. The properties of the castor stalk based fiber panel are better than the properties of the castor stalk based particle panel made under the same techniques. It studied the infiltrating-characters, the radicals-concentration and the micro-structure of the castor stalk based panel with highly effective surface tension and angle of contact instrument, Electron spin resonating spectrum instrument (ESR) and Scanning electronic microscope (SEM). The results show that the wetting-soakage and the radicals-concentration of the castor fiber are worse than those of the castor particle. The micro-structure of the castor fiber is complete and smooth without crevasse in the castor stalk based fiber panel. But the micro-structure of the castor fiber is not complete and is bruised in the castor stalk based particle panel. So it show that the properties of the castor stalk based particle board are worse than those of the castor stalk based fiber board caused by the micro-structure changed maybe.