Modified phenolic resin used for outdoor recombination bamboo production and preparation method thereof

The invention discloses a modified phenolic resin used for outdoor recombination bamboo production and a preparation method thereof. The modified phenolic resin is prepared from the components of phenol, a formaldehyde aqueous solution, an alkaline aqueous solution, urea, melamine, a polyvinyl formal aqueous solution and water. In the preparation process of the modified phenolic resin, the phenol, the formaldehyde aqueous solution and the alkaline aqueous solution are added stepwise and fully react. The comprehensive performance of the modified phenolic resin is improved by changing preparation raw materials and improving the preparation method, the solid content of the modified phenolic resin is increased, the viscosity and the flexibility of the modified phenolic resin are improved, and the wettability of the modified phenolic resin is ensured. 本发明公开了种用于生产室外重组竹的改性酚醛树脂及其制备方法，所述改性酚醛树脂制备的组分中有苯酚、甲醛水溶液、碱性水溶液、尿素、三聚氰胺、聚乙烯醇缩甲醛水溶液和水；改性酚醛树脂在制备过程中，苯酚、甲醛水溶液和碱性水溶液是分步加入、进行充分反应。本发明通过改变制备原料和改进制备方法来改善改性酚醛树脂的综合性能：提高改性酚醛树脂的固体