论文部分内容阅读
酚醛树酯具有高度的耐性,耐老化性、耐热性、耐腐性,胶合制品的强度好等性能,是国际公认的室外用胶合板的优良胶种。在国外胶合板主要用于建筑结构方面,其中的胶合板很多是用酚醛树酯胶生产的。在我国的木材加工工业中,酚醛树酯的用量低于脲醛树酯的用量,但是,近年来随着国民经济的高度发展,酚醛树酯用于生产耐水胶合板、胶合板管、酚醛树酯塑化胶合板、装饰胶合、木材层积塑料、木质压缩塑料和纤维板等产品,酚醛树酯胶合板的产量有了较大幅度的增长。因此,降低酚醛树酯成本的问题,便成为摆在我们面前的重要课题。降低酚醛树酯成本的途径如下:1.提高
Phenolic resin has a high degree of patience, aging resistance, heat resistance, corrosion resistance, good strength and other properties of glued products, is an internationally recognized good glue for outdoor plywood. In foreign plywood is mainly used for building structures, many of which plywood is produced with phenolic resin glue. In China’s wood processing industry, the amount of phenolic resin is lower than the amount of urea-formaldehyde resin, but in recent years, with the highly developed national economy, phenolic resin used in the production of water-resistant plywood, plywood, phenolic resin plasticization Plywood, decorative glued, laminated timber, wood compressed plastics and fiberboard and other products, the production of phenolic resin plywood has a more substantial growth. Therefore, reducing the cost of phenolic resin has become an important issue before us. The way to reduce the cost of phenolic resin is as follows: 1. Improve