2013•Xiandai huagongRequires access
Preparation process of bio-oil starch adhesive
Jianmin Chang
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Abstract
Bio-oil from fast pyrolysis of cottonwood is analyzed by GC-MS,which shows that the bio-oil contains a variety of useful organic component for the preparation of starch based adhesive.With the of bio-oil,pH value of starch emulsion after adding bio-oil,reaction time of bio-oil with starch emulsion and the amount of curing agent as experiment factors,the bonding strength as assessment indicators,the optimal process conditions of bio-oil starch adhesive are performed by orthogonal experiment.The results shows that the bonding strength of plywood pressed by bio-oil starch adhesive can reach index requirement of Ⅱ type plywood in GB/T 9846.3—2004 standard under the following conditions: 20% of the amount of bio-oil,7.5 of pH value of starch emulsion after adding bio-oil,45 minutes of reaction time of bio-oil with starch emulsion and 18% of the amount of curing agent.