Evaluation of alternative vegetable proteins as wood adhesives

Santoni, Ilaria; Pizzo, Benedetto

doi:10.1016/j.indcrop.2012.12.016

Cited by 55 publications

(36 citation statements)

References 29 publications

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“…Whereas soy protein has been extensively studied for this purpose (Chen et al, 2014;Luo et al, 2015;Qi et al, 2017), other vegetable proteins can also serve as wood adhesives (He & Wan, 2017;Santoni & Pizzo, 2013). Vegetable proteins are typically isolated from the seed meals by base extraction and acid precipitation.…”

Section: Introductionmentioning

confidence: 99%

Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

He¹,

Chiozza²

2017

JMSR

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Water-washed cottonseed meal (WCSM) has been shown the potential to be used as renewable and environmentfriendly adhesives in wood products industry. Recently, WCSM was produced from defatted meal in a pilot scale. In this study, we initially compare the adhesive strength of the pilot-produced WCSM with that of a synthetic glue Vinavil 2259 L. WCSM may be used as the conventional D1 wood adhesives for nonstructural interior application per European standard EN204/205. Non-structural D3 type adhesives is more widely used in protected outside. Under the testing conditions, WCSM possessed very high heat resistance according to European standard EN14257 (WATT 91)-adhesive strength after 1 hour at 80°C. However, the dry strength (EN204/205) and water resistance (specimen were put in water for 4 days and then pulled in the dynamometer) of WCSM were lower than those of the synthetic glue Vinavil 2259 L. Blending WCSM with Vinavil 2259 L improved the water resistance of WCSM, allowing the classification of the WCSM adhesive as D3. Further work will be focused on the increase of solid content of the final adhesive slurries and the improvement of their water resistance.

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Section: Introductionmentioning

confidence: 99%

Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

He¹,

Chiozza²

2017

JMSR

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“…Many attempts have been used to improve the water resistance of soy flour-based adhesives, including protein denature agent modification and cross-linker modification. Denature agent, such as alkali [5], urea [6], and sodium dodecyl sulfate (SDS) [7], can unfold protein molecule and expose inside hydrophobicity groups to improve the water resistance of the adhesive. However, the water resistance of the resultant plywood cannot meet the interior use plywood requirement.…”

Section: Introductionmentioning

confidence: 99%

Improve Performance of Soy Flour Based-Adhesive with a Lignin Based Resin

Zhang

Zhu

et al. 2017

Preprint

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The aim of this study was to using a lignin based resin (LB) to improve the performance of the soy flour based adhesive. Soy flour (SF), polyamidoamine-epichlorohydrin (PAE), LB was used to develop a plywood adhesive. The solid content and viscosity of the adhesive, functional groups, thermo-stability, and crystallinity of the cured adhesive were characterized and the performance of the resultant adhesive was evaluated by fabricating three-ply plywood. Results showed using LB and PAE mixture to modify SF adhesive improves dry and wet bond strength by 66.3 and 184.2%. PAE contributed more for the wet bond strength improvement and the LB contributed more for the dry bond strength. The improvement was attributed to: 1) LB/PAE reacted with the functions of the soy protein and form a cross-linking network; 2) Polycondensation reaction between LB molecules further improved crosslinking density of the adhesive and formed a interpenetration structure with crosslinked protein; 3)The easy penetration of LB on wood surface and formed more interlock with wood. The denser structure created by LB and PAE mixture improved the thermal stability and decreased the crystallinity of cured adhesive. The usage of the LB and PAE mixture increased solid content by 35.5%, meanwhile, makes its viscosity acceptable for the industrial application.

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“…Wheat gluten is a by-product from the production of wheat starch and bioethanol, and has been studied as a binder for wood adhesives with promising results [34][35][36][37][38][39][40][41][42][43][44]. Other proteins that have been evaluated are, for example, zein protein [45], pea protein [45], canola protein [46,47], cotton-seed protein [47], triticale protein [48], and lupine protein [49,50].…”

Section: Proteinmentioning

confidence: 99%

Green Binders for Wood Adhesives

Norström¹,

Demircan²,

Fogelström³

et al. 2018

Applied Adhesive Bonding in Science and Technology

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Today's society relies heavily on glued wood products for constructions, furniture, and floorings, for example. Essentially, all adhesives on the market are based on fossil-based resources, and many also contain formaldehyde to yield sufficient reactivity and adhesive performance. Formaldehyde is soon to be banned from consumer goods in Europe, due to its carcinogenic and allergenic features. With the rapidly growing societal environmental awareness, it becomes evident that it is crucial to seek greener, more sustainable alternatives. There is nothing new to this idea; on the contrary, prior to the advent of synthetic polymers, a range of biopolymers such as proteins and starch, were successfully used. However, since adhesives based on synthetic polymers were found to perform better, especially regarding the water resistance, the naturally sourced adhesives have had a subordinate role up until recently. The growing interest for using bio-polymers from renewable resources, such as wood/forest, corn, and cereals have spurred significant R&D developments toward the use of bio-polymers in green wood adhesives. The scope of the present chapter is to summarize, in short, some of the most recent scientific literature regarding the development of green adhesives.

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Evaluation of alternative vegetable proteins as wood adhesives

Cited by 55 publications

References 29 publications

Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

Adhesive Strength of Pilot-Scale-Produced Water-Washed Cottonseed Meal in Comparison with a Synthetic Glue for Non-Structural Interior Application

Improve Performance of Soy Flour Based-Adhesive with a Lignin Based Resin

Green Binders for Wood Adhesives

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