Potential of Brewer's Spent Grain as a Potential Replacement of Wood in pMDI, UF or MUF Bonded Particleboard

被引：18

作者：

Barbu, Marius Catalin ^{[1
,2
]}

Montecuccoli, Zeno ^{[1
]}

Forg, Jakob ^{[1
]}

Barbeck, Ulrike ^{[1
]}

Klimek, Petr ^{[3
]}

Petutschnigg, Alexander ^{[1
]}

Tudor, Eugenia Mariana ^{[1
,2
]}

机构：

[1] Salzburg Univ Appl Sci, Forest Prod Technol & Timber Construct Dept, Markt 136A, A-5431 Kuchl, Austria

[2] Transilvania Univ Brasov, Fac Furniture Design & Wood Engn, B Dul Eroilor Nr 29, Brasov 500036, Romania

[3] TESCAN As, Libusina Tr 1, Brno 62300, Czech Republic

来源：

POLYMERS | 2021年 / 13卷 / 03期

关键词：

brewer’ s spent grain; particleboard; pMDI; UF; MUF; lignocellulosic waste;

D O I：

10.3390/polym13030319

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Brewer's spent grain (BSG) is the richest by-product (85%) of the beer-brewing industry, that can be upcycled in a plentiful of applications, from animal feed, bioethanol production or for removal of heavy metals from wastewater. The aim of this research is to investigate the mechanical, physical and structural properties of particleboard manufactured with a mixture of wood particles and BSG gradually added/replacement in 10%, 30% and 50%, glued with polymeric diisocyanate (pMDI), urea-formaldehyde (UF) and melamine urea-formaldehyde (MUF) adhesives. The density, internal bond, modulus of rupture, modulus of elasticity, screw withdrawal resistance, thickness swelling and water absorption were tested. Furthermore, scanning electron microscopy anaylsis was carried out to analyze the structure of the panels after the internal bond test. Overall, it was shown that the adding of BSG decreases the mechanical performance of particleboard, due to reduction of the bonding between wood and BSG particles. This decrease has been associated with the structural differences proven by SEM inspection. Interaction of particles with the adhesive is different for boards containing BSG compared to those made from wood. Nevertheless, decrease in the mechanical properties was not critical for particleboards produced with 10% BSG which could be potentially classified as a P2 type, this means application in non-load-bearing panel for interior use in dry conditions, with high dimensional stability and stiffness.

引用

页码：1 / 12

页数：12