Grafted ABS coagulation effect on surface quality material

Identifier:  TFG:1661

Handle: https://hdl.handle.net/20.500.11797/TFG1661

Authors:  Aguirre Miquelarena, Ainara

Abstract:
Thermoplastics based on acrylonitrile-butadiene-styrene (ABS) are widely used due to their good mechanical and surface quality. In order to determinate these parameters, grafted ABS has been produced through an emulsion polymerization process. The present investigation reviews the emulsion polymerization of grafted polybutadiene in presence of styrene-acrylonitrile (SAN) copolymer followed by a coagulation method in order to obtain the ABS powder, which later is compounded and injected to final material characterization. Two coagulation methods have been carried out to determinate if some consequences could appear on the results. Processed ABS characterization was done; mainly mechanical analysis has been carried out such as toughness and tensile test, viscosity, yellowness index, gloss and optical control system analysis, among others. The resulting values have been observed and compared with a previous investigation mentioned in section 2.3. In conclusion, final surface quality material improvement is very important in ABS final products due to their various applications as for example in plating for automotive.