Development and characterization of Bioblocks: a sustainable wood-based composite utilizing MDF residues, citric acid and polyols

IF 2.4 3区农林科学 Q1 FORESTRY

European Journal of Wood and Wood Products Pub Date : 2024-11-27 DOI:10.1007/s00107-024-02141-8

Peer Thorben Lewandowski, Erik Larnøy, Holger Militz

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Abstract

The study investigated the production process and properties of a new wood-based material called Bioblocks. This sustainable composite is made from medium-density-fibreboard (MDF) residues, citric acid and either sorbitol or hexanediol. The process involves mixing in-water diluted chemicals with the MDF residues and curing the mixture in a laboratory oven to esterify the sorbitol and wood components with citric acid. A design of experiment was used to determine the influence and optima of the different process factors, and an optimised trial further investigated the material properties. The density distribution, compression strength, and TS after 24 h immersion in water according to EN 317 of the Bioblocks were tested. The first trial showed that mainly the amount of water added impacts the product’s properties. The optimised material achieved a sufficient density distribution with an average density of about 420 kg/m³, a compression strength of up to 3.5 N/mm², and a TS of about 2%. Therefore, Bioblocks are a promising natural material to use waste MDF and substitute fossil, unsustainable materials.

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来源期刊

European Journal of Wood and Wood Products 工程技术-材料科学：纸与木材

CiteScore

5.40

自引率

3.80%

发文量

124

审稿时长

6.0 months

期刊介绍： European Journal of Wood and Wood Products reports on original research and new developments in the field of wood and wood products and their biological, chemical, physical as well as mechanical and technological properties, processes and uses. Subjects range from roundwood to wood based products, composite materials and structural applications, with related jointing techniques. Moreover, it deals with wood as a chemical raw material, source of energy as well as with inter-disciplinary aspects of environmental assessment and international markets. European Journal of Wood and Wood Products aims at promoting international scientific communication and transfer of new technologies from research into practice.