冷等离子体处理对实木复合地板基材胶合性能的影响

采用常压介质阻挡放电产生的冷等离子体对杨木、桉木和马尾松单板进行改性处理,随后将它们分别压制成多层实木复合地板用基材,研究处理功率、处理速率对不同原料基材胶合特性的影响。同时对不同基材单板分别采用对应的较优处理条件进行冷等离子体处理,研究单板表面润湿性和表面形貌变化。结果表明:常压冷等离子体处理有助于提高地板基材胶合强度,降低浸渍剥离率。其中,桉木经等离子体处理后性能提高最为明显,杨木次之,马尾松较不明显。考虑实际生产中需提高生产效率,降低能耗,对杨木可选用4.5 kW,14 m/min的处理条件; 对桉木和马尾松均可选用4.5 kW,2 m/min的处理条件。
Poplar, eucalyptus and masson pine veneers were modified with atmospheric pressure dielectric barrier discharge(DBD)plasma and pressed to prepare the core layer of engineered flooring. The effects of DBD plasma treatment on the surface wettability and surface profile of different core layers were also studied. The results showed that DBD plasma treatment could improve the bonding strength and reduce delamination of the core layer of engineered flooring. The performance improvement was most significant for eucalyptus, followed by poplar and masson pine. When considering high production efficiency and low energy consumption, the optimal treatment power and speed were 4.5 kW and 14 m/min for poplar, 4.5 kW and 2 m/min for eucalyptus and masson pine