水性高分子异氰酸酯(EPI)胶黏剂在集成材加工中的应用和参数控制

Application and Parameters Control of EPI Adhesives in Glued Laminated Timber

介绍了木材用EPI胶黏剂的特点、粘接机理、在集成材应用中使用的参数控制以及最终检验方法。通过研究集成材制造企业的加工过程和生产工艺,存在的缺陷,详细地介绍施胶工艺过程中的胶黏剂配比、活性期、涂胶量、晾晒时间、堆放时间、压力大小、固化时间及固化温度的关系等参数,同时探讨了这些参数所产生的影响。指出在集成材实际生产加工过程中,如能参照一些数据指标并严格控制,对生产者的产品质量是大有裨益的。

The characters, bonding mechanism, parameters control in glued laminated timber and final test method of EPI adhesives are introduced. Through the study on the manufacture process and technology of glued laminated timber and their defects, the proportioning of adhesive, pot life, spread, open assembly time, closed assembly time, pressure, curing time and temperature are detailed and the their effects are discussed. It is indicated that it will be beneficial to the quality of products if the data and parameters are consulted and controlled strictly in the manufacture process of glued laminated timber.