Plasma Treatment
Plasma surface modification technology is a novel surface modification technology developed in recent years, mainly applied to polymers and composite materials. Plasma treatment methods include glow discharge plasma treatment, inductively coupled plasma treatment, and microwave plasma treatment. Plasma surface modification technology primarily improves the physical, chemical, and biological properties of polymer surfaces through surface chemical reactions such as oxidation, nitriding, and silicideation, thereby enhancing the surface activity and durability of the polymer.
Chemical Adhesion Layers
Chemical adhesion layers are a method of surface treatment by coating polymer surfaces with aggregates. Commonly used chemical adhesion layers include silane-based, titanium-based, and aluminum-based layers. The modification of polymer surfaces by chemical adhesion layers mainly manifests as increased surface activity, enhanced wettability and adsorption resistance, and improved corrosion resistance and optical properties. Chemical adhesion layers typically have a certain thickness, making them relatively difficult to apply to polymer surfaces with complex shapes.
Physical Adhesion Layers
Physical adhesion layers refer to a method of surface treatment by covering or bonding a layer of physically stable material with excellent surface properties to the polymer surface using physical methods. Physical adhesion layers include chemical vapor deposition layers and thermodeformable layers. Common physical adhesion materials include metals, oxides, and nitrides. The advantage of physical adhesion layers is their ability to treat complex polymer surfaces; however, due to relatively weak adhesion, they are easily affected by environmental factors and temperature changes.
Spray coatings
Spray coatings are a method of surface treatment by spraying paint onto a polymer surface. Commonly used spray coatings include polyurethane, epoxy, and thermoplastic powder coatings. Spray coatings can improve the roughness, wettability, corrosion resistance, and durability of polymer surfaces. However, spray coatings have thickness limitations on the top layer of the polymer surface and are not suitable for surface treatment of components with intricate structures.
