mattress hot melt glue

PSA can be divided into solution type, emulsion type, photocuring type and hot melt type. Solution PSA contains flammable and toxic organic solvents, which is easy to cause environmental pollution. Emulsion PSA dries slowly and the coating process is complicated.

Common hot melt pressure sensitive adhesive classification
Thermoplastic elastomer HMPSA
Thermoplastic elastomer HMPSA is a mixture of thermoplastic elastomer, adhesive resin, plasticizer, antioxidant and filler.
Thermoplastic elastomers mainly refer to styrene and its block copolymers, commonly used such as styrene-butadiene block (SBS) and styrene-isoprene block (SIS), which have a wide range of sources, reasonable prices, thermoplasticity at high temperatures and the elasticity of rubber at room temperature.

Acrylates HMPSA
The monomers of acrylate HMPSA mainly include flexible monomer, hard monomer and functional monomer.
The flexible monomer has viscosity and the glass transition temperature (Tg) is low. The hard monomer has high Tg, provides adhesive viscosity and cohesion, and significantly improves water resistance and transparency; Functional monomers contain double bonds and cross-link with other monomers to promote polymerization, speed up reaction rate and improve stability.

Silicone HMPSA
Silicone HMPSA is mainly composed of silicone rubber, silicone resin and a certain amount of additives.

Amorphous polyolefin HMPSA
Amorphous polyolefin is essentially a low relative molecular weight homopolymer or copolymer of propylene or propylene copolymerized with ethylene, butene and hexene at low pressure.

Rubber type HMPSA
In recent years, rubber HMPSA has been developed, mainly composed of rubber (including natural rubber and synthetic rubber), adhesive EVA resin, plasticizers and appropriate fillers, with simple production, no pollutant emissions, belonging to the environmental friendly adhesive.

Although HMPSA is not used in our country at present, it is gradually replacing solvent-based and emulsion PSA because of its environment-friendly, low cost and other outstanding advantages, and has a very broad development prospect. At present, the main task facing Chinese enterprises and scientific research institutions is to develop environment-friendly, multi-functional and energy-saving HMPSA and expand its scope of application.

Hot melt adhesive for sofa