作　　者： (屈伟）; (吴玉章）;

机构地区： 中国林科院木材工业研究所,北京100091

出　　处： 《木材工业》 2017年第5期13-17,共5页

摘　　要： 开发由聚磷酸铵(APP)、季戊四醇(PER)和三聚氰胺脲醛(MUF)树脂合成的表面涂布型氨基阻燃树脂,并将其应用于中密度纤维板的阻燃处理,探讨树脂体系的构成及涂布量对板材阻燃性能的影响。研究表明:1)氨基树脂受热形成膨胀炭质层,可阻碍热量和氧气传递,延长引燃时间,释热速率、释热总量大幅降低;2)随阻燃剂比例和树脂涂布量增加,板材的阻燃能力逐渐增高;3)处理15 mm厚MDF,每m3板材阻燃剂的涂布量仅为传统施胶过程添加阻燃剂用量的1/6,处理板材的火势增长指数FGI下降94.7%,在抑制火势扩大和蔓延速度方面更具优势。 A flame retardant amino resin for surface coating of wood materials was developed, including ammonium polyphosphate （APP）, pentaerythritol （PER） and melamine-urea-formaldehyde resin （MUF）, which was applied to medium density fiberboard （MDF） samples. Effects of components and coating weights of the flame retardants amino resins on fire retardant performance of the board samples were evaluated. The results showed that： 1） A charcoal layer was formed when the flame retardant amino resin was heated, resulting in a prolonged ignition time as well as decreased heat release rate （HRR） and total heat release （THR） of the board samples. 2） Flame retardant performance improved when flame retardant usage and coating weights increased. 3） Compared to traditional fire retardant technology, the surface coating flame retardant technology could reduce consumption of the flame retardants by 1/6 and fire growth index （FGI） could be decreased by 94.7%.

关 键 词： 中纤板 表面涂布 阻燃氨基树脂 三聚氰胺脲醛树脂 涂布量