Chlorosulfonated Polyethylene Elastomers
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Published: August 2012
In late 2008, the world's largest chlorosulfonated polyethylene elastomer producer, DuPont Performance Elastomers, idled its unit in the United States, and then permanently ceased production in April 2010. This move created a huge disturbance in the world chlorosulfonated polyethylene elastomer market and for end users of chlorosulfonated polyethylene elastomers. Japan and China are now the largest suppliers in the world, with Japan being the largest exporter.
Chlorosulfonated polyethylene elastomer properties include:
- Highly resistant to ozone, heat, weather, oxygen, chemicals, oils and other fluids
- Well suited for light-colored applications (colorability and color stability)
- Excellent physical properties including high tensile strength and abrasion resistance
- With increased chlorine content: increased oil resistance and decreased low-temperature properties
- Great electrical insulating properties
- Low flammability characteristics
- Excellent green strength and stability
- For some grades, unique temperature-stable vibration-dampening properties
The following pie chart shows world consumption of chlorosulfonated polyethylene:
The United States, China and Japan represented nearly 80% of the world consumption of chlorosulfonated polyethylene elastomers in 2011. Chlorosulfonated polyethylene elastomers have been adopted in many applications in a variety of industries, such as the construction sector (roofing membranes, pond and reservoir liners), automotive sector (hoses, tubing and belts), industrial products sector (seals, belts, linings, printing rolls and linings for tanks), wire and cable sector, and other (molded goods and articles, coatings and adhesives). The largest end use for chlorosulfonated polyethylene elastomers continues to be parts for the automotive sector (roughly 30% of the world market).
World consumption of chlorosulfonated polyethylene elastomers is expected to grow at an average annual rate of 1.7% during 2011–2017. China is expected to show the largest average annual growth rate (about 4.0%) because of its expanding automotive, electrical and industrial markets, followed by the rest of the world—mainly Other Asia (3.5%) and Japan (1.8%), and a negative rate for the United States and Western Europe. Markets for chlorosulfonated polyethylene elastomers have been shifting toward Asia.