From waste to building material: How whey ultrafiltration permeate can increase wood stability

被引：1

作者：

Cadieux-Lynch, Remi ^{[1
]}

Leroux, Emma ^{[1
]}

Hermann, Aurelien ^{[1
]}

Pellerin, Solene ^{[1
]}

Keralta, Assira ^{[1
]}

Blouin, Maude ^{[4
]}

Larouche, Jules ^{[4
]}

Profili, Jacopo ^{[2
,3
]}

Chamberland, Julien ^{[4
]}

Landry, Veronic ^{[1
]}

机构：

[1] Univ Laval, Renewable Mat Res Ctr, Wood & Forest Sci Dept, Quebec City, PQ, Canada

[2] Univ Laval, Ctr Rech Mat Avances, Dept Genie Mines Met & Mat, Lab Ingn Surface, Quebec City, PQ, Canada

[3] Hop St Francois Assise, CHU Quebec, Ctr Rech, 10 Rue Espinay, Quebec City, PQ, Canada

[4] Univ Laval, Inst Nutr & Funct Foods INAF, Dairy Res Ctr STELA, Dept Food Sci, Quebec City, PQ, Canada

来源：

JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 29卷

关键词：

Dairy by-products; Lactose; Wood treatment; Dimensional stability; Esterification; Citric acid; DIMENSIONAL STABILITY; GLUCOSE;

D O I：

10.1016/j.jmrt.2024.01.228

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Wood has a lower carbon footprint compared to many other materials used in construction. However, its hygroscopic nature poses significant challenges, including dimensional fluctuations in response to humidity shifts. Here we investigate a new treatment method mitigating swelling and shrinkage using dairy by-product named whey ultrafiltration permeate (mainly composed of lactose) and citric acid. Trembling aspen and black spruce samples were impregnated with ultrafiltration permeate and citric acid. Infrared and Raman spectroscopy were used to evaluate the esterification reaction and the location of the impregnates. We found increased ester bonds in the cell walls and the middle lamella (leaving the lumens empty), explaining the improved wood stability. Trembling aspen was more receptive to the treatment than black spruce, as shown by a higher weight gain (39 % vs. 13 %) and anti-swelling efficiency (54 % vs. 37 %). No leaching was observed during characterization of the treated wood. The modulus of elasticity and rupture, and the Brinell hardness were only slightly affected for both wood species. Upon combustion, esterified wood samples degraded at a lower temperature, but the stability of the residues was increased. This study highlights a promising use of ultrafiltration permeate in wood esterification.

引用

页码：1911 / 1922

页数：12