Several polyurethane foam materials frequently used

 

Polyurethane foam material has high-quality expansion and high resilience, moisture resistance and acid resistance, and can thoroughly meet various environmental protection regulations such as airtightness and energy absorption. It can prevent the actual operation of self-adhesive according to the regulations of single-layer polyurethane resin, and has a higher performance and price comparison. It uses PET or printing paper as the supporting point to ensure the smoothness of the foam. It is suitable for various die-cutting production processes. .

 

Conductive foam

The conductive foam is encapsulated on the flame-retardant sponge with conductive cloth. After a series of solutions, it has excellent surface conductivity and can be easily fixed on machinery and equipment and shielded with tape. Radiation protection materials with different appearances, installation methods, UL ratings and shielding efficiency can be given.

According to the raw materials of conductive foam cotton, it can be divided into: aluminum foil cloth foam plastic, conductive fiber cloth foam cotton, electroplating gold cloth foam cotton, carbon cloth foam cotton and so on.

 

Aluminum platinum foam

Aluminum platinum foam is made of soft pure aluminum platinum and glass fiber, using flame-retardant foam plastic instead of conductive cloth for encapsulation. The surface characteristic impedance is lower than 0.016Ω. It has high-quality metal material shielding performance, and its heat resistance can reach 130°C, low cost, and can meet the cost and working pressure requirements of the product. Aluminum foil cloth conductive foam cotton has high-quality performance, shielding performance is higher than 100 db and high elasticity, reducing surface conductivity characteristic impedance, anti-corrosion, and improving the compatibility of the metal material coating of the RF connector assembly.

 

CR foam

CR foam is a kind of general-purpose special rubber. It not only has the excellent physical properties of general vulcanized rubber, but also has high-quality flame retardancy, acid and alkali resistance, and solvent corrosion resistance. It is in a variety of styrene butadiene rubber Give full play to the key functions.

It can be customized according to customer requirements. It is equipped with a variety of imported tapes with good adhesion. The products are used for communication, computers, electrical products, calculation methods, electric toys and various electronic device control boards.

 

 

PU polyurethane foam material

PU leather is generally the second layer of leather on the back of cowhide, and the surface is coated with a layer of PU epoxy resin, so it is also called coated cowhide. The price is low and the utilization rate is high. With the transformation of processing technology, it has also been made into various types, such as imported two-layer cowhide. Because of its distinctive processing technology, stable quality, novel types and other characteristics, it is a high-end leather product at this stage. The price and grade are not inferior to artificial leather.

Both PU leather and real leather products have their own characteristics. PU leather is beautiful in appearance, convenient for medical care, cheap, but not resistant to wear and tear, and easy to damage; leather products are more expensive, inconvenient to maintain, but durable.

 

 

EPEepe pearl cotton

EPE is also called epe pearl cotton. High-pressure polyethylene foam is a non-chemical cross-linked closed pore structure, and it is a new type of environmentally friendly packaging raw material. It is composed of thousands of individual bubbles caused by the physical polyurethane foaming of a low-density polyethylene resin. Get rid of the defects of general plastic foam vulnerable parts, deformation, and poor transaction rate. It has the advantages of moisture resistance, earthquake resistance, sound insulation and noise reduction, heat insulation, good plastic performance, strong ductility, recyclability, environmental protection, impact resistance, etc., and its excellent acid resistance. It is an ideal substitute for traditional packaging products.

Our common die-cutting raw material foams are the ones I have exemplified above. The appearance of foams looks simple, but in fact the production process is also very complicated. Each stage has strict regulations, especially Is paying attention to the manipulation of the die-cutting process.