Use of Filled Bioplastics in Construction

Abstract

Polymers and associated composite materials play an increasingly prominent role among structural materials. The relevance of the use of bioplastics as an alternative to synthetic polymers increases year by year. In this regard, the paper describes the production of a ligno-filled polymer material based on polyhydroxyalkanoates to be used in the production of building materials. The studies allowed us to produce the material from wood hydrolyzates. The highest yield of reducing substances in course of pine sawdust hydrolysis with 4% sulfurous acid occurred at 170°C. To obtain a biopolymer in liquid wood hydrolyzate medium, the Cupriavidus necator strain was used, which after 50 hours of cultivation gave a biopolymer yield of up to 15 g/l. The studies of the strength characteristics of the composite based on the obtained bioplastic and dried solid wood hydrolysates allowed us to produce a balanced composition for subsequent use in construction.

The Potential Applications of Reinforced Bioplastics in Various Industries: A Review

“…One of the potential applications of reinforced bioplastics is the high strength characteristics to be applied in construction formwork [ 85 ]. Besides, reinforced bioplastics are potential materials for construction textiles to replace conventional plastics, as fibre=reinforced bioplastics possess the quality and properties required, as stated by Friedrich (2022) [ 87 ].…”

“…Conventional plastic applications in the industry, including textile fleece, cables, or floor coverings, require high strength to resist against different heavy workload conditions. Bioplastic materials have great application potential in the industry, but the cost is high due to the fact that better quality bioplastics mostly require extra cost in processing, and the performance of conventional bioplastic in the industry is not suitable and is insufficient to apply in the industry [84,85]. Ivanov and Stabnikov (2017) stated that the application of biodegradable bioplastics can give benefits to the industry, such as environmental and bio-economic sustainability, reduction of construction waste disposal cost, and temporary construction excavation costs [86].…”