The difference between XPE/IXPE foam and PVC foam

What is PVC foam?
PVC foam, English name Polyvinyl Chloride Foam, is a foam material made of PVC (polyvinyl chloride).

PVC foam has the characteristics of flame retardant, waterproof and moistureproof, heat preservation, shockproof buffer, acid and alkali resistance, oil resistance, etc. It is mainly used in rail transit, tape and other industries.

What is XPE foam material?
XPE foam and IXPE foam are new environmentally friendly polymer materials. Compared with PVC foam, XPE and IXPE foam materials are more environmentally friendly, safer, odorless, and have better mechanical properties, stronger, more durable, and moisture-proof. , Good heat preservation and sound insulation effect. XPE foam is commonly used in construction, automobile, sports, packaging and air conditioning industries, such as car mats, floor mats, moisture-proof mats, archery targets, baby crawling mats, etc.

Which is better, PVC foam or XPE foam?
The main raw material of PVC foam is oligovinyl chloride. The foam contains chlorine, which is halogen-containing foam, which is not environmentally friendly. Many countries have banned the application of halogen-containing foam, so the application range of PVC foam is limited. PVC foam has good flame-retardant properties and can meet the FMVSS 302 standard, which is the combustion test standard for interior materials of vehicle compartments. Therefore, PVC foam can be used in transportation rail related products.

XPE foam has better environmental performance and is recognized as an environmentally friendly foam material. It has been widely used in construction, automobile, packaging, sports, air conditioning and heat preservation industries.

PE foam (polyethylene foam), that is, polyethylene foam, is a foam product made from PE raw materials through foaming. PE foam has good thermal insulation properties. In addition, PE foam has good cushioning and shock absorption performance, good weather resistance, and good aging resistance. It has been widely used in various aspects such as agricultural industry, automotive electronics and civilian use. According to the different foam molding process, PE foam is divided into EPE, XPE, IXPE, etc., each of which has its own characteristics.

Common types of PE foam: XPE (chemical crosslinked) IXPE (irradiated crosslinked)

xpe ixpe

The use of PE foam
PE foam, the production base materials are all non-toxic high molecular polymers, using foaming agent or ion irradiation to act on the raw materials, so that PE (polyethylene) will be cross-linked to change the original structure of the base material, thus forming The net-shaped independent closed-cell cell structure makes the product surface smooth, excellent in resilience, and high in mechanical strength; it has excellent heat insulation, waterproof and moisture resistance; improved aging resistance and chemical corrosion resistance; stable volume and high sound insulation performance. PE foam can be subjected to secondary molding processes such as compounding, bonding, and cutting.

Suitable for PE foam processing technology
Blister molding:
Heat the mold, then put the sheet or coil material into the mold, evacuate the air, and cool the shape.
Punching process:
Using hydraulic punching machine, CNC engraving machine, etc., the material is punched into the shape required by the customer.
Laminating process:
Use PE (polyethylene) as the medium to compound different materials with PE foam

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