Preparation of highly phenol substituted bio‐oil–phenol–formaldehyde adhesives with enhanced bonding performance using furfural as crosslinking agent

Cheng, Yaonan; Sui, Guanghui; Liu, Huan; Wang, Xiao‐Feng; Yang, Xiaomin; Wang, Zichen

doi:10.1002/app.46995

Cited by 14 publications

(9 citation statements)

References 41 publications

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“…In 2019, Cheng et al described the synthesis of phenol-substituted bio-oil–phenol–formaldehyde adhesives, using furfural as the crosslinking agent [ 64 ]. In addition, in 2019, Sui et al described the synthesis of formaldehyde-free biobased phenolic resole resins: phenol–furfural–glucose, phenol–furfural, and phenol–glucose.…”

Section: Substitutes For Formaldehyde In Formaldehyde-free Resins In ...mentioning

confidence: 99%

Formaldehyde-Free Resins for the Wood-Based Panel Industry: Alternatives to Formaldehyde and Novel Hardeners

2022

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Due to its carcinogenic properties, the presence of formaldehyde in resins and other industrial products has been a subject of great concern in recent years. The presented review focuses on modern alternatives for the production of wood-based panels; i.e., substitutes for formaldehyde in the production of amino and phenolic resins, as well as novel hardeners for formaldehyde-free wood adhesives. Solutions in which formaldehyde in completely replaced are presented in this review. Recent advances indicate that it is possible to develop new formaldehyde-free systems of resins with compatible hardeners. The formaldehyde substitutes that have primarily been tested are glyoxal, glutaraldehyde, furfural, 5-hydroxymethylfurfural, and dimethoxyethanal. The use of such substitutes eliminates the problem of free formaldehyde emission originating from the resin used in the production of wood-based panels. However, these alternatives are mostly characterized by worse reactivity, and, as a result, the use of formaldehyde-free resins may affect the mechanical and strength properties of wood-based panels. Nonetheless, there are still many substantial challenges for the complete replacement of formaldehyde and further research is needed, especially in the field of transferring the technology to industrial practice.

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Section: Substitutes For Formaldehyde In Formaldehyde-free Resins In ...mentioning

confidence: 99%

Formaldehyde-Free Resins for the Wood-Based Panel Industry: Alternatives to Formaldehyde and Novel Hardeners

2022

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“…With an increase in furfural loading, the methylene bridges between phenol and furfural increased and, therefore, the bonding strength of the highly substituted resin improved. The wet tensile strength of the BPF resin increased to 2.84 MPa compared to 1.54 MPa for PF resin [ 148 ]. Riya et al developed phenol furfural resin from moringa oleifera gum and biophenol and studied its application in styrene butadiene rubber.…”

Section: Formaldehyde Substitutes For Pf Resinmentioning

confidence: 99%

Bio-Based Alternatives to Phenol and Formaldehyde for the Production of Resins

Sarika

Nancarrow

Khansaheb³

et al. 2020

Polymers

147

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Phenol–formaldehyde (PF) resin continues to dominate the resin industry more than 100 years after its first synthesis. Its versatile properties such as thermal stability, chemical resistance, fire resistance, and dimensional stability make it a suitable material for a wide range of applications. PF resins have been used in the wood industry as adhesives, in paints and coatings, and in the aerospace, construction, and building industries as composites and foams. Currently, petroleum is the key source of raw materials used in manufacturing PF resin. However, increasing environmental pollution and fossil fuel depletion have driven industries to seek sustainable alternatives to petroleum based raw materials. Over the past decade, researchers have replaced phenol and formaldehyde with sustainable materials such as lignin, tannin, cardanol, hydroxymethylfurfural, and glyoxal to produce bio-based PF resin. Several synthesis modifications are currently under investigation towards improving the properties of bio-based phenolic resin. This review discusses recent developments in the synthesis of PF resins, particularly those created from sustainable raw material substitutes, and modifications applied to the synthetic route in order to improve the mechanical properties.

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“…4 Chemical structure of furfural [56] prepared via the phenolization-copolymerization method, in which furfural was used as a novel crosslinking agent to improve the bonding performance, has been demonstrated. This material exhibited an enhanced bonding performance above the well-known phenol-formaldehyde resins [81]. Varela et al [82] has described the application of an ecofriendly resin, containing furfural, known as cardanol-furfuraldehyde/maghemite, which has magnetic properties and capabilities to absorb petroleum oil spillage on water surface at a ratio 1:10.…”

Section: Selected Uses/applicationsmentioning

confidence: 99%

Sustainable Chemicals: A Brief Survey of the Furans

et al. 2020

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Whether it is in the textiles, paints and coatings, energy sector, polymers, plastics, woods, sugar chemistry, pharmacy, aerospace and the automotive industries, the multiplicity of applications of furans and their derivatives, have made steady, impressive, and progressive impacts over the last 9 decades. After World War II, due to the shift in focus towards the petroleum-based chemical feedstocks, research, and development studies of these impressive class of lignocellulosic-derived chemicals, slowed down markedly. The trend, however, has reversed remarkably in recent time, due to the pursuit for "green" and sustainable chemical feedstocks, coupled with the increasing concerns over climate change, volatile oil prices and the attendant undesirable environmental issues, associated with fossil hydrocarbons. Chemicals obtained from "green" inedible lignocellulosic biomass, such as: the furans and their derivatives, ranks amongst the most promising, sustainable, and industrially applicable alternatives to various petroleum-derived chemicals; further offering an enormous assortment of unique compounds/materials, and properties analogous to and even exceeding those derived from fossil hydrocarbons. This article reviews selected progresses, so far made, in the field of furans and its derivatives and their application portfolios; while recognising the immense contributions of Peters and Dunlop, who in no small measures, advanced the furan chemical industry during their research efforts at the Oat Hull Research Centre at the Quaker Oats Company, Cedar Rapids, USA.

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Preparation of highly phenol substituted bio‐oil–phenol–formaldehyde adhesives with enhanced bonding performance using furfural as crosslinking agent

Cited by 14 publications

References 41 publications

Formaldehyde-Free Resins for the Wood-Based Panel Industry: Alternatives to Formaldehyde and Novel Hardeners

Formaldehyde-Free Resins for the Wood-Based Panel Industry: Alternatives to Formaldehyde and Novel Hardeners

Bio-Based Alternatives to Phenol and Formaldehyde for the Production of Resins

Sustainable Chemicals: A Brief Survey of the Furans

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