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The article presents results on the decomposition of polylactic acid (PLA)/halloysite nanotube (HNT)biocomposites. Studies were carried out in laboratory conditions simulating composting in theindustrial pile using so called short degradation method. In this paper, the effects of compostingprocess (duration from 30 to 90 days) on the behaviour of PLA/HNT composites were studied. Inaddition, the selected physico-chemical properties of PLA/HNTs biocomposites such as the viscosity,weight loss and water absorption were investigated. The results obtained confirmed the viability ofcomposting PLA with halloysite which contributes to the reduction of plastic waste and the use of thismaterial in technological applications.