By A. Chrisochoou, D. Dufour
This document discusses the differing kinds of styrenic copolymers in the market position this present day, their homes and functions. The industry state of affairs is mentioned. The chemistry of those fabrics is printed, including a precis of producing equipment. The morphology, manufacture and homes of key fabrics are defined. This evaluate is followed by means of summaries of the stated papers from the Rapra Polymer Library database.
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Extra resources for Styrenic Copolymers
For instrument panel lenses or small covers where no exceptional stresses will be applied. 2 Exterior Weather-resistant styrenic copolymers or blends such as ASA, AES, PC+ASA and PC+AES are the main materials used uncoated in automotive exterior applications (386, 411, 574). If non weather-resistant styrenic copolymers are used they are usually painted or clear-coated (35, 115, 185). Styrenic copolymers are used as bodywork parts and for external mirror housings, A newly introduced PA+ABS blend (Triax DP 3155) has promising market prospects (3).
If non weather-resistant styrenic copolymers are used they are usually painted or clear-coated (35, 115, 185). Styrenic copolymers are used as bodywork parts and for external mirror housings, A newly introduced PA+ABS blend (Triax DP 3155) has promising market prospects (3). The mineral filled blend can withstand temperatures up to 200 °C so that mouldings of this material can be fitted directly to untreated bodies and both can be coated together (online coating). This not only simplifies the coating process but also ensures perfect colour matching between metal and plastic parts.
Flame retarded PC+ABS-blends are widely used as housing materials in the IT industry, where the UL-94 V standards are the most important fire safety specifications (11, 44). Flame retarded systems used to be based on bromine or chlorine compounds with antimony oxide as a synergist (42, 116, 567). PC+ABSblends today mostly use halogen-free phosphoric acid esters as effective flame retardants (73, 170, 199, 447, 490, 271) such as the following arylphosphates: 22 triphenyl phosphate (TPP), resorcinol bis-(diphenyl phosphate) (RDP) and bisphenol A bis-(diphenyl phosphate) (BDP) (331).