Investigation and optimization of factors affecting the quality of high impact polystyrene

Subject Areas : The Application of Chemistry in Environment

Received: 2018-03-14 Accepted : 2018-04-29 Published : 2018-06-22

Keywords: Keywords: styrene &ndash, Resistant polystyrene, mixer &ndash, rubber&ndash, Solvent, the catalyst,

Abstract :

Abstract In the process of producing polystyrene resistant, which should have a certain standard, Most of the time, due to changes in the quality of raw materials, as well as changes in production line conditions and inadequate equipment of the production unit, Product quality is not optimal and it may not sell and Return to the market. In addition, the conditions of production are always up-to-date and competitive.In this context, by performing experiments on different samples of resistant polystyrene product, effective methods for product quality optimization have been investigated and tried to make changes in process conditions Such as: temperature, pressure, mixer speed, type and amount of rubber, solvent content, additive content,Use of more advanced catalysts, The best values and outcomes are available to use to produce high-quality, cost-effective products.

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منابع

 [1] Rodriguez., F, 1982, Principles of polymer systems .McGraw-Hill.  Singapore .

Brydson's Plastics Materials, Eighth Edition. [2] Bridson ,j., 2016

[3] Auto chem Operatig Manual 2007.

[4] Freeguard, G. F., 1972, Rubber Modified Polystyrene: Structural Variation Induced During Pre-polymerization, 1-5.

[5] ASTM D1238-13, Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer, ASTMInternational, West Conshohocken, PA, 2013.

[6] Nielsen, L. E, and  Landel, R, F., 1994,  Mechanical properties of polymers and composites. Second edition. Marcel Dekker. New York.

[7] ASTM D256-10e1. Standard Test Methods for Determining the Izod Pendulum Impact Resistance of Plastics, ASTM International, West Conshohocken, PA, 2010.

[8] Noskova, N.A., Yenalev, V.D, and Bulatova, V.M., 1985, The Mechanism of Phase Structure Formation in Ipmact-Resistant Polystyrene in the Initial Stage of Copolymerization of Styrene with Polybutadiene , 1-8.

[9] ASTM D1525-09, Standard Test Method for Vicat Softening Temperature of Plastics, ASTM International, West Conshohocken, PA, 2009.

[10] Khanh, T.Vu., 1998, Time – Temperature Dependence in Fracture Behavior of High Impact Polystyrene, 1-9.