What chemicals are in polyurethane foam?

 

What is Polyurethane Foam

Polyurethane is the abbreviation of polyurethane, the English name is polyurethane, referred to as PU foam

 

Foam is divided into PU foam, anti-static foam, conductive foam, EPE, anti-static EPE, PORON, CR, EVA, bridging PE, SBR, EPDM, etc. PU is polyurethane, PU is the abbreviation of poly urethane in English, Chemical Chinese name: Polyurethane. It has a series of characteristics such as convenient use, free bending, ultra-thin volume and reliable performance.

 

Polyurethane foam:

Polyurethane is an emerging organic polymer material, known as the "fifth largest plastic", and is widely used in many fields of the national economy because of its excellent performance.

 

General advantages of polyurethane materials: non-toxic and harmless

 

feature:

• Very good shielding effect at low pressure, the shielding effectiveness exceeds 90dB.

• Flexible and lightweight.

•Anti-corrosion nickel coating provides protection against galvanic corrosion.

• Low surface contact resistance.

• Quick pressure-sensitive fixation.

•Customer can specify length.

• Numerous section options.

• UL class fire protection.

Can be pasted with Mylar (Valet double-sided tape) product quality is stable,

Heat-resistant pressure, not easy to fall off, high tensile strength,

After the product is installed, at a low temperature of -20 °C to a high temperature of 80 °C,

The quality of the cycle test is still maintained for 72 hours.

It has the advantages of convenient use, free bending, ultra-thin volume,

Reliable performance and a series of characteristics.

conductive foam

The conductive foam wraps the conductive cloth on the flame-retardant sponge. After a series of treatments, it has good surface conductivity and can be easily fixed on the device to be shielded with adhesive tape. Shielding materials with different cross-sectional shapes, installation methods, UL ratings and shielding effectiveness are available.

 

Conductive foam can be divided into: aluminum foil cloth foam, conductive fiber cloth foam, gold-plated cloth foam, carbon-plated cloth foam, etc. Widely used in PDP TVs, LCD monitors, LCD TVs, mobile phones, notebook computers, MP3, communication cabinets, medical instruments and other electronic products as well as military and aerospace fields

 

Conductive Foam Features and Benefits

RoHS compliant

Improved Z-axis resistivity increases shielding effectiveness to over 90dB over a wide frequency range

Applicable thickness 0.039" ( 1mm), 0.060" (1.5mm), 0.079" (2 mm), 0.098" (2.5 mm), 0.125" (3.2mm), width up to 0.250" (6.4mm)

Large compression range, up to 60% of the original thickness

Also has UL94 HB and V0 flame rating

Available in a variety of standard configurations including D-subs, USB port, IEEE 1394, SCSI and RJ 11. (Also available in sheet and rectangular form factors)

Can be die-cut to desired shape

Die cut I/O, rectangular pads and panel pads are available with or without conductive adhesive backing

Low residual deformation ensures long-term performance of the product

Widely used in PDP TVs, LCD monitors, LCD TVs, mobile phones, notebook computers, MP3, communication cabinets, medical instruments and other electronic products as well as military and aerospace fields