摘要
以厚度为0.35～0.40 mm的榉木为薄木基材、棉网格布为增强材料和PES(聚醚砜)型HMA(热熔胶)为胶粘剂,选用BL-环保阻燃剂制备装饰材料用阻燃柔性复合薄木;然后以拉伸强度、剥离强力和表观性能为衡量指标,以热压压力、热压温度、含水率和胶膜厚度为试验因素,采用正交试验法优选制备柔性复合薄木的最优方案。结果表明:以PES型HMA作为薄木/棉网格布复合用环保型胶粘剂,其不仅与BL-环保阻燃剂有很好的相容性,而且可避免脲醛树脂胶粘剂的甲醛释放等问题;增强型薄木与非增强型薄木相比,前者的横纹拉伸强度显著提高,并且前者不再表现为脆性特征;柔性复合薄木热压工艺条件的最优方案为热压压力0.7 MPa、热压温度125℃、含水率12%和胶膜厚度0.10 mm。
With beech with thickness of 0.35-0.40 mm as veneer for base material,cotton mesh cloth as reinforcing material and PES （polyether sulphone） type H MA （hot melt adhesive） as adhesive, a composite flexible- veneer with flame-retardant for adornment material was prepared by adding BL-environment-friendly flame retardant. Then,with tensi]e strength,peeling strength and apparent property as evaluation indices,with hot-pressing pressure ,hot-pressing temperature, moisture content and film thickness as experiment factors, an optimal project of preparing composite flexible-veneer was preferred by orthogonal experiment. The results showed that with PES type HMA as an environment-friendly adhesive for veneer/cotton mesh cloth composite,the HMA had not only good compatibility with BL-environment-friendly flame retardant,but could avoid releasing formaldehyde in urea formaldehyde resin adhesive. Compared the enhanced veneer with the un-enhanced veneer,the transverse tensile strength of the former was notably increased, and the former didn＇ t have the characteristic of brittleness any longer. The optimal project of hot-pressing process conditions for composite flexible-veneer was obtained when hot-pressing pressure was 0.7 MPa,hot-pressing temperature was 125 ℃,moisture content was 12% and film thickness was 0.10 mm.
出处
《中国胶粘剂》
CAS
北大核心
2013年第2期1-4,17,共5页
China Adhesives
基金
国家科技支撑计划基金项目"家装材与室外材增值制造技术研究与示范"(2012BAD24B02)
关键词
柔性复合薄木
聚醚砜
增强材料
BL-环保阻燃剂
力学性能
composite flexible-veneer
polyether sulphone （PES）
reinforcing material
BL-environment-friendlyflame retardant
mechanical property
