PVB is a multifunctional polyvinyl butyral resin produced through chemical reaction and synthesis.
With high transparency, good toughness, flexibility, resistance to low temperatures and ultraviolet radiation, water, oil, and aging, PVB adheres very strongly to many materials such as glass, metal, plastic, wood, leather, and other materials. It also has excellent pigment dispersion and resin solubility.
Today, PVB is used in automotive and architectural safety glass interlayers, paints, inks, resistors, batteries, circuit boards, hot melt adhesives, modified agents in textile fiber processing, etc.
1. PVB Properties
- General Characteristics: Alcohol, ketone, ester, etc. Soluble in solvents.
- Film Formation: PVB has excellent film-forming properties, tensile strength, tear strength, abrasion resistance, flexibility, and high gloss.
- Pigment Dispersion: PVB has good pigment dispersion and stability.
- Adhesion: It adheres perfectly to glass, metal, plastic, leather, and wood surfaces.
- Chemical Properties: PVB is a hot-melt type resin; it can be cured with thermoset resin to achieve chemical resistance, solvent resistance, and water resistance.
2. PVB Applications
- It has a strong affinity for metal surfaces for various surface coatings (electronics, ships, bridges, aircraft).
- It is the best material for safety glass interlayers.
- It is formulated into different metal adhesives such as brake pad glue.
- It is used for metal foil coatings and box sealing.
- It plays an important role in textile dyeing and transfer printing.
- It is widely used in circuit boards, ceramic substrates, batteries and resistors.
