木粉粒度对有机木粉腻子性能的影响

Effects of Wood Flour Size on Organic Wood-Flour Putty Performance

利用木材加工剩余物为原料,加工300、500、800和1000目四种不同粒度的木粉,按一定比例与聚醋酸乙烯酯乳液和甲苯二异氰酸酯混合,制备木材底涂用有机木粉腻子,分析木粉粒度对腻子性能指标的影响。结果表明:在木粉腻子各原料配比确定情况下,500目木粉配制的有机木粉腻子,其涂饰性、附着力和外观等性能,优于其他粒度木粉配制的腻子。

Organic wood-flour putty was prepared by mixing wood-flour, polyvinyl acetate emulsion （16% solids content） and isocyanate resin. Wood flour with different diameters, from 10 to 60 μm, made from waste wood was used. This article discusses how the putty performance can be influenced by the wood flour size. The results show that with a specific formula, wood-flour putty made with 500 mesh flour has better painting properties and adhesive strength.