01.01.70

Among the chemicals habituated to to manufacture polymer composites, few are as widely used as styrene. Produced from unsophisticated gas feedstocks, it is a primary ingredient in polystyrene (PS), acrylonitrile butadiene styrene (ABS), imitation rubber, paints and, most important to the composites industry, expanded polystyrene (EPS) and styrene acrylonitrile (SAN) acclimatized to make foam core, and unsaturated polyester resin (UPR).

In UPR, styrene is adapted to in loadings up to 40 percent by weight and plays a key crosslinking r during cure. UPR represents the second-largest global market for styrene (behind PS), and in the composites hustle UPR is a workhorse. Its corrosion resistance and high strength have long made it common in the manufacture of marine watercraft, cultured marble countertops, weighty-surface bath and kitchen ware, polymer concrete and more. Most composite boats, for pattern, are still manufactured via open molding processes (bucket and roller, or distribution up). That and its strong odor have kept styrene under the wary eye of government and regulatory agencies as a pith potentially harmful to employees in composites manufacturing facilities.

Source: High Performance Composites

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