Plastics environmental aspects

Plastics-Environmental aspects. 2. Plastics-Health aspects. 3. Plastics-Biodegradation. I. Title. TD798.A53 2015 628.4 4-dc23... 

Biodegradable plastics. 2. Plastics—Recychng. 3. Plastics—Environmental aspects. 

Key findings are reported from a study by David Brown of Warwick Research Institute into the environmental aspects of plastics packaging used for snack foods. The four options of reduction, re-use, recycling and recovery are discussed. The original research examines OPP as the most commonly used plastic for snack food packaging. BODY SHOP... 

Guillet, J. 1997. Environmental aspects of photodegradable plastics. Macromolecu-lar Symposia, 123 209-24. 

Little has appeared on the enviromnental effects of waste plastics pyrolysis. Conceptually, the topic can be subdivided in those environmental aspects related to ... 

W. Totsch and H. Gaensslen, Polyvinyl Chloride (PVC) Environmental Aspects of a Common Plastic, London and New York Elsevier Applied Science. 73-101 (1992). 

Environmental Aspects of Initiators for Plastic Manufacture and Processing... 

Keywords Environmental aspect, Initiator, Plastic manufacture, Polymerization, X-linking - curing... 

Recent inventions " are driven by product improvement needs and environmental aspects of application of these products. Janoski s patent describes a product which is an anhydrous blend of polymer and asphalt and is substantially solvent-free. This technology shows that it is possible for an ingenious designer to produce low viscosity materials without using solvents but by selecting the appropriate type and concentration of bituminous materials, polyurethane components, and plasticizers. 

The polyolefins production has increased rapidly in the 40 years to make polyolefins the major tonnage plastics material worldwide. In 2003, 55 million tons of polyethene and 38 million t/a polypropene were produced [1]. These products are used for packing material, receptacles, pipes, domestic articles, foils, and fibers. Polyolefins eonsist of carbon and hydrogen atoms only and the monomers are easily available. Considering environmental aspects, clean disposal can be achieved by burning or by pyrolysis, for instance. Burning involves conversion to CO2 and H2O, exclusively. 

The third aspect of sustainability can measure the environmental impacts of producing a product or system in terms of usage of natural resources for raw materials, energy, and real estate land. The production of plastic products can generate greenhouse gases (GHGs), solid and liquid waste, air pollution, water pollution, and toxic chemicals. Environmental aspects are measured with the life cycle process explained in Chapter 3. 

In this sense also plastics recycling is a very complex matter and it is to discuss in its entirety of economical, political, technological, energetical, material and environmental aspects. 

Basdekis, C. H. (1964) ABS Plastics, Reinhold Publishing Corporation, New York. Bishop, R. B. (1971) Practical Polymerization for Polystyrene, Cahners Books, Boston. Brighton, C. A., Pritchard, G. and Skinner, G. A. (1979) Styrene Polymers Technology and Environmental Aspects, Applied Science Publishers Ltd, London. 

---