water-based polyurethane dispersion for glove application

Polyurethane dispersion(PUD) are water-based polymeric materials that find wide application across various industries, including the production of gloves. PUD are known for their excellent film-forming properties, high elasticity, and good mechanical strength. They are commonly used as coating materials in glove manufacturing due to their desirable properties, such as flexibility, durability, and resistance to abrasion.

One important aspect of PUD for glove applications is their thermal resistance. The thermal performance of PUDs can vary depending on the type of polyurethane used. Polyesters and polyether are two common types of polyurethanes used in water-based PUDs.

Polyester-based polyurethane dispersion generally exhibit better thermal resistance compared to polyether-based PUDs. This is because polyester-based PUDs have a higher heat distortion temperature, meaning they can withstand higher temperatures without deforming or losing their properties. They are also known for their superior chemical resistance and excellent adhesion to various substrates.

On the other hand, polyether-based polyurethane dispersion tend to have lower heat distortion temperatures compared to polyester-based PUDs. This makes them more suitable for applications where thermal resistance is not a critical requirement. Polyether-based PUDs often offer better low-temperature flexibility and hydrolytic stability, making them suitable for applications that involve exposure to moisture or harsh environmental conditions.

When selecting a PUD for glove manufacturing, it is important to consider the specific requirements of the application, including the desired thermal resistance. The choice between polyester-based and polyether-based PUDs will depend on factors such as the intended use of the gloves, the environmental conditions they will be exposed to, and the desired balance of properties.

In summary, the thermal performance of polyester-based PUDs is generally superior to that of polyether-based PUDs. However, the ultimate choice of PUD type should be based on a comprehensive evaluation of the specific application requirements to ensure optimal performance and durability of the gloves.