What material is rigid polyurethane foam made of?

 

Rigid polyurethane foam is referred to as rigid polyurethane foam, and its consumption in polyurethane products is second only to that of flexible polyurethane foam.

 

Polyurethane rigid foam is mostly closed-cell structure, which has excellent thermal insulation effect, light weight, high specific strength, convenient construction, etc. It also has the characteristics of sound insulation, shock resistance, electrical insulation, heat resistance, cold resistance, solvent resistance, etc. It is widely used in Electronic equipment manufacturers, new energy industry and aerospace field. Generally speaking, lower density polyurethane foam is mainly used as insulation material, and higher density polyurethane foam can be used as structural material.

Classification

Among all kinds of polyurethane products, polyurethane foam plastic is the most important part. Its main feature is its porosity, so its relative density is small and its specific strength is high. According to different raw materials used and formula changes, it can be made into soft, semi-rigid and rigid polyurethane foam plastics; if classified according to the type of polyol used, it can be divided into polyester type, polyether type and castor oil type polyurethane Foam plastics, etc.; if classified according to their foaming methods, there are types of block, molded and sprayed polyurethane foam plastics.

 

Polyurethane rigid foam is generally foamed at room temperature, and the molding process is relatively simple. According to the degree of construction mechanization, it can be divided into manual foaming and mechanical foaming; according to the pressure during foaming, it can be divided into high-pressure foaming and low-pressure foaming; according to the molding method, it can be divided into pouring foaming and spray foaming.

 

Features

• Rich thickness provides corresponding options for handheld device applications

• Good sealing, can provide good dust sealing effect for equipment under moderate compression

• Long-lasting elasticity, providing long-term stable positioning for parts that need to be fixed

• Good shock absorption performance, can effectively protect components and reduce impact damage

• Excellent resistance to compression set, providing long-term protection for equipment

 

application

 • Mobile phone speakers, power modules, lampshade seals, automobiles, electronic equipment and computer communication equipment and other industries

 • Fixed bonding and protection of electronic products, cameras, speakers, LCD monitors, signs, etc.

 • Batteries, with plug-in compression foam

 • Computer, electronic equipment feet, etc.