Cross-linked soy-based wood adhesives for plywood

Lei, Hong; Du, Guanben; Wu, Zhigang; Xi, Xuedong; Dong, Zuomin

doi:10.1016/j.ijadhadh.2014.01.026

Cited by 139 publications

(54 citation statements)

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“…However, the adhesive could cure excessively if hot pressing temperature is too high. In addition, the high pressing temperature is related to degradation of cotton stalks and can decrease the values of mechanical properties of OCB (Pizzi and Cameron 1981;D'Amico et al 2010;Lei et al 2014). Therefore, temperatures of 130, 150, and 170 °C were therefore chosen for orthogonal experiment to replace levels 1, 2, and 3 of pressing temperature in Table 2.…”

Section: Resultsmentioning

confidence: 99%

Preparation and Properties of Oriented Cotton Stalk Board with Konjac Glucomannan-Chitosan-Polyvinyl Alcohol Blend Adhesive

et al. 2015

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The use of formaldehyde-free, biomass-based composites has gained increasing attention in recent years because of their environmental benefits and superior strength properties. In this study, oriented cotton stalk board (OCB) was fabricated with an environmentally friendly, waterbased konjac glucomannan-chitosan-polyvinyl alcohol (KCP) blend adhesive using hot pressing technology. The effects of pressing parameters on the physical and mechanical properties of oriented cotton stalk board were examined in order to obtain optimal pressing parameters. Interfacial bonding surface was also examined with a scanning electron microscope and a fluorescence microscope. The optimal physical and mechanical properties were obtained at a pressing temperature of 150 °C for 15 min with a target density of 0.8 g/cm 3 during hot pressing. Adhesive content and hot pressing pressure had significant influences on adhesion. Mechanical interlocking was also observed between cotton stalks and the adhesive. OCB with KCP blend adhesive has comparable mechanical properties to that with urea formaldehyde resin or phenolic formaldehyde resin. OCB resinated with KCP blend adhesive is environmental friendly and has potential applications in furniture and interior decoration with less stringent requirements for water resistance.

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Section: Resultsmentioning

confidence: 99%

Preparation and Properties of Oriented Cotton Stalk Board with Konjac Glucomannan-Chitosan-Polyvinyl Alcohol Blend Adhesive

et al. 2015

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“…Epoxy resins were studied as effective cross-linking agents to modify soy adhesives [26][27][28]. Gao et al [26] used DETA and EGDE as the modifiers to cross-link soy protein.…”

Section: Adhesives -Applications and Propertiesmentioning

confidence: 99%

Research Progress on Formaldehyde‐Free Wood Adhesive Derived from Soy Flour

Gui¹,

Zhu²,

Zhang³

et al. 2016

Adhesives - Applications and Properties

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Soy-based adhesives have been regarded as the most suitable candidates for wood industry. For a widespread use of soy-based adhesives, new technologies need to be developed to improve the water resistance. An overview on the methods to improve water resistance of soy-based adhesives is presented. Denaturants were once considered necessary to modify soy protein. However, water-resistant soy adhesives could be prepared by simply removing water-soluble carbohydrates and low molecular peptides from soy flour. In addition, proper grafting and cross-linking agents help to prepare water-resistant soy-based adhesives, which are used widely to bond interior wood composites. In particular, a new type of polyamidoamine (PADA) resin and an itaconic acid-based polyamidoamine-epichlorohydrin (IA-PAE) resin were synthesized to perform as cross-linking agents for soy-based adhesives. This review concludes that soybased adhesives have great potential for use in numerous applications. However, future work is still needed to make soy-based adhesives more competitive with synthetic adhesives.

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“…Proteins have a versatile reactive macromolecular structure which makes them an interesting source for innovative biomaterials. Popular resources for proteins used as adhesives are soy protein [4] and [5], wheat gluten [6] and [7], gelatin [8], and casein [9]. Especially casein has a very long tradition for gluing applications, as it has been used since the time of 4 the ancient Egyptians [10].…”

Section: General Remarksmentioning

confidence: 99%