What are the applications of waterborne polyurethane resin in the industry?

Waterborne Polyurethane (WPU) is an environmentally friendly polymer material that uses water as a dispersing medium. It has the advantages of low VOC, non-toxic or low toxicity, and easy processing, and is widely used in multiple fields. The following are its main usage classifications and specific applications:

1. Coatings and Coatings

Wood coatings: Used for surface coating of furniture, flooring, and wooden products, providing high gloss, wear-resistant, and scratch resistant properties.

Industrial coatings: protective coatings on metal surfaces such as automotive parts and mechanical equipment, resistant to corrosion and ultraviolet radiation.

Plastic coating: Improve the surface texture, wear resistance, and adhesion of plastics such as phone cases and electronic product casings.

Architectural coatings: Interior and exterior wall coatings, waterproof coatings (such as roofs and basements), with good elasticity and strong weather resistance.

2. Adhesive

Shoe material adhesive: used in the footwear industry for bonding shoe soles and uppers, with good flexibility and resistance to hydrolysis.

Packaging industry: food packaging, paper bonding (compliant with environmental requirements).

Textile composite: used for fabric lamination (such as waterproof and breathable fabrics) and automotive interior bonding.

3. Textiles and Leather

Fabric coating: waterproof and breathable fabric (outdoor clothing, sportswear), imitation leather fabric (sofa, luggage).

Leather processing: replacing traditional solvent based leather finishing agents, used for leather polishing, soft finishing, environmentally friendly and with a good hand feel.

4. Ink and Printing

Flexible printing ink: used for food packaging and paper printing, with strong adhesion and low odor.

3D printing material: used as a water-based photosensitive resin for high-precision model printing.

5. Medical and Health Care

Medical dressings: Manufacturing breathable and antibacterial wound dressings or medical tapes.

Condom coating: Provides a soft, non allergenic surface treatment.

6. Automotive industry

Interior materials: Coatings on car seats and dashboard, combining comfort and wear resistance.

Component protection: Waterproof sealing coating for wiring harnesses and rubber parts.

7. Other emerging fields

New energy batteries: used as separator coatings for lithium-ion batteries to enhance high temperature resistance.

Degradable materials: Composite with cellulose and other materials to develop environmentally friendly biodegradable films.

Summary of Advantages

Environmental friendliness: solvent-free and compliant with EU regulations such as REACH and RoHS.

Safety: Suitable for food contact and children's products.

Adjustable performance: Through formula design, diverse requirements such as hardness, elasticity, and chemical resistance can be achieved.

With the tightening of environmental regulations and technological progress, water-based polyurethane resin is gradually replacing traditional solvent based polyurethane, and its application fields continue to expand. Guangdong Jubang Industrial Co., Ltd. is a modern high-tech enterprise specializing in the research and development, production, and sales of water-based oil-based polyurethane resins, polyurethane adhesives, and water-based colorants.