Surface Plasma Treatment Equipment Plasma Modified Plastic Film Enhanced Flexible Decorative Thin Wood Process:

With the rapid growth of my country's furniture industry and interior decoration industry, the demand for wooden decoration materials continues to increase, and new types of decoration materials continue to emerge. Plastic film reinforced flexible decorative veneer, as an environmentally friendly formaldehyde-free and environmentally friendly product, has a broad market prospect. However, during the preparation process of plastic film-reinforced flexible decorative veneer, problems such as poor interfacial bonding performance and easy curling and deformation under high-temperature hot pressing have restricted its industrial production and popularization. Surface plasma treatment equipment Plasma is a gas mixture composed of ground state and excited state electrons, ions and neutral particles. A large number of ions will be generated during the discharge process. The surface of the material will be physically and chemically modified. It has a short processing time, The advantages of no pollution and high efficiency.
The plasma modification treatment with low-temperature surface plasma treatment equipment can introduce specific functional groups on the surface of the decorative veneer through the action of excited atoms and molecules, free radicals and ions, and plasma radiation ultraviolet light to produce physical etching on the surface. Cross-link the structure layer or generate surface free radicals. At the same time, the wettability of the plastic film on the surface of the veneer will be greatly improved, the interface bonding characteristics will be improved, the bonding temperature will be reduced, and the discoloration and curling of the flexible decorative veneer caused by the excessive heat pressing temperature will be avoided.
Different from the traditional paper substrate and non-woven fabric substrate flexible decorative veneer preparation process, the glued surface of the plastic film and the decorative veneer is modified by low-temperature plasma, and the subsequent process of glue coating or mixing is directly carried out for hot-pressing and compounding. Low-temperature surface plasma treatment equipment Plasma equipment is close to an electrode. The plasma device passes a high-voltage electrode, a negative ground electrode, and a high-voltage-resistant insulating layer in the middle. The generated ionomer acts on the surface of the material to realize the material molecule. Physical and chemical reactions such as chain scission, surface etching and oxidation can increase the surface roughness of the material, increase the surface tension, and improve the interface bonding characteristics.
Generally speaking, the slower the plasma speed of the surface plasma treatment equipment, the longer the treatment time, and the greater the degree of plasma action under the same discharge power. Treated under common power conditions, the surface performance of decorative veneer is stable and excellent. Compared with untreated veneer, its water contact angle is reduced by 47%, surface free energy is increased by 59%, surface wetting performance is significantly improved, and O/C ratio From 39% to 43%, a large number of oxygen-containing functional groups and peroxides are actively generated, indicating that the surface activity and polarity are enhanced, and obvious physical etching is formed, and the surface roughness is increased by 80%.
Compared with the surface of the untreated plastic film, the water contact angle of the plastic film surface treated at the same speed is reduced by 37%, the surface free energy increased by 74%, and the surface 0 element content increased by 10.7 times, and the O/C content ratio increased significantly. , An increase of 13.1 times. Surface plasma treatment equipment Plasma treatment has an impact on the physical and chemical properties of the surface of decorative veneer and plastic film, which is beneficial to improve the bonding characteristics of the hot-press composite interface between the two.
Surface plasma treatment equipment plasma modified veneer and plastic film to prepare flexible decorative veneer, the hot pressing temperature is significantly reduced, which not only reduces energy consumption, effectively alleviates the curling deformation of the veneer caused by high-temperature pressing, but also the peel strength of the veneer , The transverse tensile strength is excellent, there is no cracking, and the phenomenon of rubber penetration, which provides favorable conditions for product application and promotion.