Acrylester-Styrol-Acrylnitril-Terpolymer

Acrylester-Styrol-Acrylnitril (Kurzzeichen ASA) ist ein schlagzähes Terpolymer (Copolymer aus drei Arten von Monomereinheiten). It has similar characteristics as ABS is however many weather-proof. With ASP the acryl ester portions are even in a SAN (styrene acrylonitrile) - polymer distributes and by grafted SAN chains connected. The acryl ester component is present dispers, is in general. easily interlaces and works as an impact tough modifier. It will in the predominant measure n-butyl acrylate for the synthesis used, for the improvement of the very low-temperature tenacity can certain portions of cyclohexyl acrylate as Comonomer with the synthesis be used.

During manufacturing on respective application suitable additives are trained into the plastic matrix. Here in particular UV-Stabilistoren are to call Antioxidantien and lubricants.

ASP forms high-quality, shining and scratch-proof surfaces. By the additive of matt finish means or the production of larger acryl ester phases can be achieved according to matte surfaces.

The very good chemical stability is to be explained due to the higher polarity of the acryl ester component in the comparison to the polybutadiene component with ABS. A very good stability exists in relation to aqueous media inclusive diluted acids/alkalis as well as detergent solutions, a good regarding oils/fats, alcohols and aliphatic hydrocarbons. ASP is inconsistant opposite many esters, Ethern and Ketonen, with their operational readiness level the surface anquellen and/or. Shatter cracks to train knows.

Frequent synonym: Acrylonitrile styrene acryl ester

 

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