PMI Foam

Industrial grade PMI foam is a high-performance composite foam core material, which has three types of fine pores, coarse pores and ultra-fine pores. It has the characteristics of high strength, high specific modulus, and high porosity, and can be well used in fiber pre impregnation molding, high-pressure vessel molding, and other processes to shorten the overall production time. In addition, the product has good weather resistance and can withstand harsh working environments. After heat treatment, it can even cure at 180 ° C and 0.7MPa pressure.

Our industrial grade PMI foam has good sound insulation, heat insulation and moisture-proof performance, because it has high closed porosity and fine, uniform bubbles, and can maintain a stable state during processing. In addition, it has the characteristic of easy adhesion and can be well applied to resin systems such as epoxy resin and unsaturated polyester to achieve high adhesive strength. Meanwhile, it is easy to process and can bend into various curved surfaces under heating conditions. Its unique molecular structure gives it good fatigue resistance, especially for composite sandwich structures under dynamic loads.

Our industrial grade PMI foam is famous for its excellent strength, durability and lightweight performance. It has a high strength to weight ratio and is an ideal material for applications such as aerospace and automotive components that require high strength performance. Compared with other foam materials, our PMI foam has significantly higher compressive strength, which makes it have a high compressive and deformation capacity. It also has high stiffness, making it an excellent material for components that require precise geometric shapes, such as molds for composite parts.

In addition to strength and rigidity, our PMI foam also has high moisture resistance, chemical resistance and temperature resistance. It can withstand high temperatures without melting or cracking, making it a reliable material for high-temperature applications. Its closed cell structure also gives it high water absorption, which helps reduce the risk of mold and other types of damage.

Our industrial grade PMI foam can be used in a wide range of industrial applications, including:

1. Aerospace: It is usually used to produce composite structures of aircraft, such as wings, fuselage and tail. Its high strength to weight ratio and stiffness make it an ideal material for these applications.

2. Automobile: It is used to produce lightweight structural parts of automobiles, such as bumpers, spoilers and door panels. Its high stiffness and strength characteristics make it an excellent material for these applications, where weight reduction and durability are essential factors.

3. Structure: It is used as the thermal insulation material of buildings, where it provides excellent thermal insulation and moisture-proof performance. Its lightweight characteristics also make it easy to install and handle.

4. Marine: It is usually used for shipbuilding applications. Its high strength weight ratio and water resistance make it an ideal material for hull, deck and other structural components.

5. Sports equipment: It is used to produce various sports equipment, such as surfboards, skis and skateboards. Its lightweight performance and stiffness provide excellent performance.

It is generally believed that the density of PMI foam and honeycomb with the same mechanical properties is 10-15% higher than that of honeycomb, so it is considered that the honeycomb is lighter. However, comparing the weight of the core material alone is meaningless. It is necessary to consider the cured components as a whole, taking into account the adhesive film, potting adhesive, and surface fibers.

Because there are two indispensable processes, splicing and powder filling, in the production of honeycomb, a large number of adhesives are introduced. These adhesives with high density offset the low density of honeycomb core material, and eventually the weight of the finished product is about 10% higher than that of the finished product of foam core material.

On the other hand, PMI foam is perfectly suitable for various liquid forming processes, including RTM, VARI, etc. These processes increase the proportion of carbon fiber or glass fiber in the finished product and reduce the proportion of glue. Under the premise of the same performance, the finished product will be lighter.

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