Acrylic Scrap

1. Acrylic Scrap Acrylic Acrylic, also known as poly methylmethacrylate (PMMA), is a clear, colorless transparent plastic with a higher melting point, better impact strength, and better weather resistance than polystyrene (PS). It is widely used in many areas like transparency roof, automobile parts, etc. and produced principally through extrusion and casting. Acrylic scrap The cell casting process, of sheet manufacture, which consists of two flat glass plates separated by an elastomeric gasket, is generally used for the manufacture of transparent acrylic sheets. In general, the gasket is used only once and has to be removed from the finished product by cutting in order to make the required sheet size. Residual acrylic material sticking around unusable gaskets, generated during cutting step, comprises approximately 10% of total final production, and becomes an industrial waste. Acrylic plastic is not easily recycled and is therefore not collected for recycling in many countries. Scrap Acrylic is an industrial waste, not only having a significant impact on the environment but also on the cost of production of Acrylic Sheets. Acrylic plastics are not easily biodegradable. Some acrylic plastics could be highly flammable. PMMA scrap with technological additives can, however, be recycled and re extruded to produce new PMMA sheet in spite of its amorphous structure. Industrial PMMA scrap can be divided into two groups, pure acrylic plastic scrap which forms about 20% and reinforced acrylic plastic scrap forming about 80% of the total amount. Recycling Scrap by Pyrolysis The process generally consists of heating the acrylic scrap with certain chemicals to a temperature of 4000-4500ºC in a mild steel distillation still. The heating results in the depolymerisation of PMMA to Methyl meth acrylate monomer which is condensed and redistilled to get the pure regenerated monomer. A mixture of the pure monomer and regenerated monomer (generally up to 5%) is then mixed with Benzyl peroxide (catalyst) and heated. After the desired degree of polymerization, the viscous mass is cooled, mixed with colours and poured into molds. It is then heated and dipped in a hot water bath to complete the polymerization process. PMMA has also been successfully depolymerised by contacting with molten lead resulting in MMA with a purity of more than 98%, but from an environmental point of view the use of lead many be undesirable. Visit http://ishitaimpex.com/product.html for acrylic products likes Acrylic Sheets Manufacturer In Vapi, Acrylic Mirror Sheets Manufacturers In Vapi, Polystyrene Sheet Manufacturer In Vapi, Pmma sheets manufacturer in vapi,Polystyrene Sheet,ACRYLIC OFFCUTS,ACRYLIC SCRAP,ACRYLIC BANGLES