Epoxy-lignin polyblends: effects of various components on adhesive properties

Wang, J.; Banu, D.; Feldman, D.

doi:10.1163/156856192x00412

Cited by 21 publications

(9 citation statements)

References 2 publications

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“…The unreacted lignin might form agglomerates which act like potential stress concentrators, decreasing the shear strength. This trend has been noticed in several works in the literature [24,[58][59][60][61][62][63][64], and agrees with the impact test results.…”

Section: Lap Shear Testsupporting

confidence: 91%

Epoxidation of Kraft Lignin as a Tool for Improving the Mechanical Properties of Epoxy Adhesive

et al. 2020

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Owing to its chemical structure, wide availability and renewable nature, lignin is a promising candidate for the partial replacement of fossil-based raw material in the synthesis of epoxy resins. Its poor compatibility has been reported to be one of the main drawbacks in this domain. On the other hand, a well-established modification method for lignin epoxidation has been used for many years for the improvement of lignin compatibility. However, the extent of the effect of lignin epoxidation on the improvement of bio-based epoxy mechanical properties, applied as adhesives, is still an open question in the literature. In this context, a pristine and industrial grade kraft lignin (AKL) was reacted with epichlorohydrin to yield epoxidized lignin (E-AKL) in this work. Afterwards, AKL or E-AKL were separately blended with petroleum-based epoxy resin at 15 and 30 wt% and cured with a commercial amine. The adhesive curing kinetic was evaluated using a novel technique for thermal transition characterization, Temperature Modulated Optical Refractometry (TMOR); the results showed that the incorporation of AKL reduces the crosslinking rate, and that this effect is overcome by lignin modification. Mechanical tests revealed an improvement of impact and practical adhesion strength for samples containing 15 wt% of E-AKL. These results elucidate the effect of lignin epoxidation on the application of lignin-based epoxy adhesives, and might support the further development and application of these bio-based materials.

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Section: Lap Shear Testsupporting

confidence: 91%

Epoxidation of Kraft Lignin as a Tool for Improving the Mechanical Properties of Epoxy Adhesive

et al. 2020

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“…Because of the less complex chemistry, simple direct polymer blend with lignin, epoxy group-containing chemicals and curing agents, for example, amine containing reagents -were commonly studied. [161][162][163][164][165][166][167][168] Lignin-based epoxy resin mostly investigated its thermal properties, mechanical properties and morphological characters with scanning electron microscopy (SEM).…”

Section: Phenol Epoxymentioning

confidence: 99%

Chemistry of lignin-based materials

2013

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There is a need for renewable resources as a raw material for commodity polymers. Lignin is one of the most important natural biopolymers from renewable resources due to its suffi cient supply, robust material properties and the fact that its use does not compete with the food supply. Lignin has been investigated since the late 19th century, but its applications are limited due to poor processability, low reactivity and intrinsic heterogeneity depending on the plant source and isolation methods used. Current strategies for using lignin in modern materials center on integrating it with other natural or synthetic polymers. This review article introduces the technological importance of lignin and focuses on copolymers and blends based on lignin in a broad range of applications.

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“…As can be seen, the wettability is improved by adding Land organosilane to the EP polymer [19]. Besides EP and L, a polymeric component such as PVC or phenoxy resin as a third partner contributes to better adhesive properties [20].…”

Section: L-epoxy Cep) Blendsmentioning

confidence: 99%

Lignin and Its Polyblends

Feldman

Banu

Lacasse

et al. 1995

Journal of Macromolecular Science, Part A

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=07269c67-f972-47fc-8946-f8fc5a78c40d http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=07269c67-f972-47fc-8946-f8fc5a78c40d The material in this document is covered by the provisions of the Copyright Act, by Canadian laws, policies, regulations and international agreements. Such provisions serve to identify the information source and, in specific instances, to prohibit reproduction of materials without written permission. For more information visit http://laws.justice.gc.ca/en/showtdm/cs/C-42Les renseignements dans ce document sont protégés par la Loi sur le droit d'auteur, par les lois, les politiques et les règlements du Canada et des accords internationaux. Ces dispositions permettent d'identifier la source de l'information et, dans certains cas, d'interdire la copie de documents sans permission écrite. Pour obtenir de plus amples renseignements : http://lois.justice.gc.ca/fr/showtdm/cs/C-42 LIGNIN AND ITS POLYBLENDS ABSTRACTLignin, one of the most abundant biopolymers, is a renewable, cheap source with great possibilities for use as a component in polymeric systems. In spite of many research efforts, its potential hasn't been exploited. Recent developments in the domain of lignin and its derivatives focus on the possibilities of their use in polymeric systems. This paper shows some recent data obtained by using lignin in poIyblends with silicones, acrylics, polyurethanes, epoxy, and PVC.

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Epoxy-lignin polyblends: effects of various components on adhesive properties

Cited by 21 publications

References 2 publications

Epoxidation of Kraft Lignin as a Tool for Improving the Mechanical Properties of Epoxy Adhesive

Epoxidation of Kraft Lignin as a Tool for Improving the Mechanical Properties of Epoxy Adhesive

Chemistry of lignin-based materials

Lignin and Its Polyblends

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