Introduction to common foam species:
EVA foam, the characteristics of the resin is good softness, elasticity of rubber, under - 50 ℃ can still has good flexible, good transparency, or surface gloss, good chemical stability, anti-aging and good ozone resistance strength, non-toxic. Good mixing with filler, good coloring and molding.
EPE also known as pearl cotton. Polyethylene foam is a new kind of environmental friendly packaging material with non - crosslinked closed-cell structure. It has many advantages, such as water-proof, shockproof, sound-proof, heat preservation, good plasticity, strong toughness, recycling, environmental protection, strong collision resistance, as well as good chemical resistance. Widely used in electronic appliances, instruments, computers, audio, medical equipment, industrial control case, lighting, crafts, glass, ceramics, home appliances, spraying, furniture, wine and gift packaging, hardware products, toys, fruits, shoes, inner packaging, daily necessities and other products packaging. Add anti - static agent and flame retardant, the more remarkable performance.
Aluminum foil foam is made of soft pure aluminum foil and glass fiber composite aluminum foil cloth instead of conductive cloth wrapped flame retardant foam. Surface impedance Ω 0.016 or less, has the good shielding performance of metal, the heat resistance performance of up to 130 ℃, low cost, can meet the needs of the product cost pressure.
CR foam is a universal special rubber, in addition to the general good physical properties of rubber, but also has fire resistance, oil resistance, chemical corrosion resistance and other excellent characteristics, so that it has an important position in a variety of synthetic rubber.
EPP: polypropylene plastic foam material is a kind of high crystalline polymer/gas composite material with excellent performance. IT products, electronic communication equipment, liquid crystal display, plasma color television, precision electronic components, precision instruments and meters have begun to use EPP as a large number of packaging materials. Special and superior performance become the fastest growth of new environmental protection pressure - resistant insulation materials.
Sponge, is a kind of porous material, has good water absorption, can be used for cleaning goods. The foaming resin, foaming agent and adhesive resin (so that the finished product has the adhesive) are mixed together;
Sponge basically has: industrial sponge: have foam cotton, finalize the design cotton, rubber cotton, memory cotton to wait. Chemical sponge, polyurethane soft foamed rubber.
The characteristic of high grade sponge: when choosing sponge, basically be the first factor that judges with its tactility and flexibility. It should feel soft and malleable.