Acrylic pressure-sensitive adhesive is widely used in multiple industries due to its relatively low production cost. For this type of product, various properties ranging from clean removability to extremely high peel strength can be achieved through adjustments in formulation and manufacturing processes. Based on these advantages, it is particularly widely used in the label and packaging industries.

What is acrylic pressure-sensitive adhesive psa ?

Acrylic pressure-sensitive adhesive is a product that uses acrylic polymers as the main binder. The molecular weight and Tg in its formulation are relatively low, enabling it to exhibit viscoelasticity within the ambient temperature range

The key characteristics of these acrylic polymers are as follows:

- Softness

- Ability to wet and adhere to the surface of substrates

- Capacity to fill uneven surfaces

Acrylic polymers are used in multi - layer laminations and structural sealing. Currently, the most common type of acrylic pressure - sensitive adhesive in the market is the water - based emulsion type. These emulsions are thermoplastic systems that cross - link under certain usage conditions.

How is acrylic pressure - sensitive adhesive produced?

Acrylic pressure - sensitive adhesive is composed of one or more acrylic monomers. These monomers have multiple functional groups. During the polymerization process, these monomers form high - molecular - weight products. This is done to prepare binders with different cross - linking properties.

These mixed monomers can be cured by ultraviolet light, heat, or chemical catalysts. These adhesives can be cured either on the coating line or off the coating line.

On - line curing-using some thermosetting acrylics, cyanoacrylates, or anaerobic acrylates

Off - line curing-using high - molecular - weight monomers

The characteristics of acrylic adhesives lie in their diversity and wide applicability. Therefore, there are various solutions, including solvent - based solutions, water - based emulsion solutions, and solvent - free multi - monomer mixed solutions.

Typical properties

Acrylic pressure - sensitive adhesives have a wide range of application scenarios for the following reasons:

- Saturation of the polymer

- Better oxidation resistance than other adhesives except for silicone pressure - sensitive adhesives

- Good adhesion to many substrates, including metals, glass, and various high - surface - energy plastics

- Overall balance of cohesive force

- Essentially thermoplastic and polar

- Softening upon heating

- Requiring less plasticizer

Sinograce Chemical produces water-based acrylic pressure-sensitive adhesives for use in label adhesives and tape adhesives, as well as various additives. Welcome to inquire.