Investigation of poly (glycidyl methacrylate-co-styrene) as a curing agent for soy-based wood adhesives

Mousavi, Seyyed Yahya; Huang, Jian; Li, Kaichang

doi:10.1016/j.ijadhadh.2017.12.017

Cited by 21 publications

(5 citation statements)

References 9 publications

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“…The soy-based adhesive is a green and ecofriendly adhesive that provides several advantages, including rich and cheap sources of raw materials, ease of handling, and renewability [1,2,3]. Studies have been conducted on the soy-based adhesive as a replacement for the formaldehyde-based adhesive, and its use in the wood-based panel fabrication industry [4,5].…”

Section: Introductionmentioning

confidence: 99%

A High-Performance and Low-Cost Soy Flour Adhesive with a Hydroxymethyl Melamine Prepolymer

et al. 2018

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To improve the performance of a soy flour (SF)-based adhesive, a low-cost hydroxymethyl melamine prepolymer (HMP) was synthesized and then used to modify the SF-based adhesive. The HMP was characterized, and the performance of the adhesive was evaluated, including its residual rate, functions, thermal stability, and fracture section. Plywood was fabricated to measure wet shear strength. The results indicated that the HMP preferentially reacted with polysaccharose in SF and formed a cross-linking network to improve the water resistance of the adhesive. This polysaccharose-based network also combined with the HMP self-polycondensation network and soy protein to form an interpenetrating network, which further improved the water resistance of the adhesive. With the addition of 9% HMP, the wet shear strength (63 °C) of the plywood was 1.21 MPa, which was 9.3 times that of the SF adhesive. With the HMP additive increased to 15%, the shear strength (100 °C) of the plywood was 0.79 MPa, which met the plywood requirement for exterior use (≥0.7 MPa) in accordance with Chinese National Standard (GB/T 9846.3-2004). With the addition of 9% and 15% HMP, the residual rates of the adhesive improved by 5.1% and 8.5%, respectively. The dense interpenetrating network structure improved the thermal stability of the resultant adhesive and created a compact fracture to prevent moisture intrusion, which further increased the water resistance of the adhesive.

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Section: Introductionmentioning

confidence: 99%

A High-Performance and Low-Cost Soy Flour Adhesive with a Hydroxymethyl Melamine Prepolymer

et al. 2018

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“…Furthermore, a susceptibility of manufactured plywood to delamination was assessed according to ANSI/HPVA HP-1 (2004) protocol. It is a method widely used to determine water resistance of experimental adhesive formulations applied for plywood bonding (Damodaran and Zhu 2016; Mousavi et al 2018;Taghiyari et al 2020). Samples with the dimensions of 130 mm × 50 mm were subjected to a treatment procedure including soaking in water at 24 ± 2°C for 4 hours followed by drying in laboratory oven for 19 hours at 50 ± 1°C.…”

Section: Plywood Manufacturing and Testingmentioning

confidence: 99%

Modified pine needles as a formaldehyde scavenger for urea-formaldehyde resin in plywood production

Dukarska

Kawalerczyk

Kmieciak

2023

Preprint

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The aim of presented work was to investigate whether it is possible to use ground pine needles as a formaldehyde-scavenging filler for urea-formaldehyde resin in the production of plywood. The scope of the research included determinations of both optimal amount of introduced filler and the effect of its modification (silanization, hydrothermal and alkaline treatments). Properties of adhesives such as viscosity, gel time and pH were investigated and their morphology was assessed using scanning electron microscopy. Manufactured plywood were tested in terms of wet shear strength, tendency to delamination and formaldehyde emission. It was found that the addition of pine needles lowers the pH and reduces gel time of the adhesive. Moreover, it was shown that despite a significant reduction in formaldehyde emission, the addition of non-modified needles causes a decrease in bonding quality of plywood. Based on the results, 10 parts by weight of needles per 100 parts by weight of resin can be considered as optimal loading. The use of ground needles modified hydrothermally and with silane allows to minimize the negative effect on the strength of glue lines and leads to further reduction of formaldehyde emission. Therefore, it can be concluded that pine needles powder has a strong potential for the application as formaldehyde-scavenging filler for urea-formaldehyde adhesive in plywood production.

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“…In the above modication methods, the crosslinking modication is the most effective improvement method, which promote the formation of a stable threedimensional network structure of soy protein through chemical cross-linking reaction. [16][17][18] Compounds with two or more functional groups which can react with the reactive groups of proteins are usually used as cross-linkers, 19 such as epoxy compounds, 20 aldehyde and its derivatives, 21 waterborne polyurethane, 22 tannins, 23 lignin-based resin, 24 etc. Luo et al employed 6% neopentyl glycol diglycidyl ether to increase the wet shear strength of the soy-based adhesive to 1.12 MPa.…”

Section: Introductionmentioning

confidence: 99%

Improved performance of soy protein adhesive with melamine–urea–formaldehyde prepolymer

Jiang

Lei

et al. 2021

RSC Adv.

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Investigation of poly (glycidyl methacrylate-co-styrene) as a curing agent for soy-based wood adhesives

Cited by 21 publications

References 9 publications

A High-Performance and Low-Cost Soy Flour Adhesive with a Hydroxymethyl Melamine Prepolymer

A High-Performance and Low-Cost Soy Flour Adhesive with a Hydroxymethyl Melamine Prepolymer

Modified pine needles as a formaldehyde scavenger for urea-formaldehyde resin in plywood production

Improved performance of soy protein adhesive with melamine–urea–formaldehyde prepolymer

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