Degradation of polyurethanes in compost under natural conditions

• Published in: Journal of applied polymer science Vol. 125; no. 6; pp. 4252 - 4260
• Main Authors: Krasowska, Katarzyna, Janik, Helena, Gradys, Arkadiusz, Rutkowska, Maria
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 15.09.2012; Wiley; Wiley Subscription Services, Inc
• Subjects: Ageing; Applied sciences; Climatology; compost; Composting; Degradation; Exact sciences and technology; Materials science; Moisture content; morphology; Physical properties; Polymer industry, paints, wood; Polymers; Polyurethane resins; polyurethanes; Properties and testing; Reproduction; Technology of polymers; Tensile strength; thermal properties; Weather; Biodegradation; Biological properties; Biodegradability; compost; Mechanical properties; degradation; Urea copolymer; Experimental study; Urethane copolymer; polyurethanes; Tensile strength; Thermal properties; Composting; Esterurethane polymer; Morphology; Weathering; Exposure time
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.36597

The estimation of degradability of different polyurethanes under natural weather depending conditions in compost pile was the subject of this study. The incubation of polymer samples took place for a period up to 24 months. The characteristic parameters of the compost: temperature, pH, moisture content, and activity of dehydrogenases were monitored and their influence on degradation of polyurethanes was discussed. The compostability of polyurethanes was investigated by changes of weight, tensile strength, morphology, and thermal properties. The degradation study revealed that the degree of degradation of polyurethanes in the natural environment, like compost, is dependent on their chemical and structural composition. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012