大豆蛋白胶用于强化地板装饰纸压贴的探究  

Application of Soy Protein-based Adhesive in Strengthening Hot Pressing of Flooring Decorative Paper

作　　者：卢晶昌 杨光[1] 杨波[1] 韩敏[1] 李琴 袁少飞 

机构地区：[1]上海理工大学,上海200093 [2]浙江省林业科学院竹研究所,杭州310023

出　　处：《包装工程》2014年第15期53-58,62,共7页Packaging Engineering

基　　金：上海市科技攻关重点项目(08521102000);上海市自然科学基金(08ZR1415200);浙江省重大科技专项重点农业项目(2011C12050);浙江省院合作林业科技项目(2010SY04)

摘　　要：目的为了解决浸渍纸释放甲醛的问题,对大豆蛋白胶用于强化地板装饰纸的压贴工艺进行探索,找到合理的压贴工艺流程。方法在热压温度为130℃,热压压力为2.5 MPa,热压时间为2 min,施胶量为160g/m2,对施胶后的装饰纸干燥至恒重以及控制板面涂水量为75~80g/m2的条件下,将装饰纸和高密度纤维板组坯、热压,计算装饰纸表面水渍面积百分比,并测定其表面胶合强度。结果表面胶合强度大于1.0 MPa,达到GB/T 18102—2007的技术要求,解决了装饰纸表面的水渍问题。结论大豆蛋白胶可以用于压贴强化地板装饰纸,确定其工艺流程为：单板整理→施胶→干燥→板面涂水→组坯→热压→检测。为表层纸以及平衡纸的压贴提供了参考。Objective To solve the problem of formaldehyde releasing from impregnated paper, the hot-pressing technology of decorative paper with soy protein-based adhesive for laminate flooring was investigated, to find out a reasonable technology workflow. Methods The hot-pressing temperature, hot-pressing pressure, hot-pressing time and adhesive dosage were controlled at 130 ℃, 2.5 MPa, 2 min and 160 g/m2, respectively. The decorative paper was then dried to a constant weight. The water used during spraying section was ranged between 75 and 80 g per square meter of the board surface. After lay-up and hot pressing of the decorative paper and high-density fibre plates, the percentage of water-stain area was calculated and the surface bond strength was determined. Results The results showed that the surface bond strength was larger than 1.0 MPa, which met the National Standard GB/T 18102--2007. Moreover, this process could solve the water-stain problem. Conclusion It was found that soy protein-based adhesive could be used to press decorative paper in hot-pressing technology. An improved process flow was found which included tidying the surface of the board, gluing up the decorative paper, drying the paper after gluing, spraying water on the surface of board, assembly, hot pressing and detection. This study provides reference for pressing of overlay paper and balance sheet paper.

关 键 词：大豆蛋白胶 装饰纸 水渍 表面胶合强度 

分 类 号：TQ430.3[化学工程]