Sustainable composite material based on surface-modified rape straw and environment-friendly adhesive

Dušek, Jaromír; Jerman, Miloš; Podlena, Milan; Böhm, Martin; Černý, Robert

doi:10.1016/j.conbuildmat.2021.124036

Cited by 20 publications

(12 citation statements)

References 36 publications

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“…It is apparent that organic materials such as rape straw, lignosulphonate or glue are not able to resist to biological attacks. The results from the previous studies indicated that straw treated by NaOH had the highest matrix density whether glue or epoxy was used as the adhesive [ 40 ]. In addition, rape straw treated by water had the highest porosity but the humidity was highest for the straw with NaOH.…”

Section: Resultsmentioning

confidence: 99%

“…For the composite materials containing rape straw without treatment and with water treatment, the swelling was several times lower. The authors of [ 40 ] thus concluded that the rape straw from their study can be used effectively only up to the air relative humidity of 75% and is suitable for dry environments only, such as cladding and insulation in construction, or for packaging purposes.…”

Section: Resultsmentioning

confidence: 99%

“…The epoxy resin was mixed with hardener in a ratio of 2:1, then the rapeseed straw was added; the amount of epoxy material was 5% of the total weight of the mixture [ 40 ].…”

Section: Methodsmentioning

confidence: 99%

“…The interaction between bone glue and sodium lignosulfonate has been studied several times [ 37 , 38 , 39 , 40 ]. It has been found that the adhesion capacity of the bone adhesive is increased by the addition of a certain amount of sodium lignosulfonate.…”

Section: Introductionmentioning

confidence: 99%

“…It has been found that the adhesion capacity of the bone adhesive is increased by the addition of a certain amount of sodium lignosulfonate. Through covalent bonds between bone adhesive proteins, a dense network is formed that improves the adhesive properties [ 37 , 38 , 39 , 40 ].…”

Section: Introductionmentioning

confidence: 99%

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Ecotoxicity and Biodegradation of Sustainable Environment-Friendly Bone-Glue-Based Adhesive Suitable for Insulation Materials

et al. 2022

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Bone glue with sodium lignosulfonate is a protein-based adhesive. Their combination leads to strong binding necessary for the achievement of adhesive properties. However, biodegradation and ecotoxicity of materials composed of bone glue and sodium lignosulfonate has never been studied before. In this paper, the biodegradation potential of the mixture of bone glue, lignosulfonate and rape straw modified by water or NaOH on an agar test with aerial molds and in acute aquatic tests with mustard, yeasts, algae and crustaceans was analyzed. Epoxy resin as an ecologically unfriendly binder was used as a negative control and pure rape straw as a background. The results indicated that all samples were covered by molds, but the samples containing straw treated by NaOH showed lower biodegradability. The ecotoxicological effects varied among the applied model organisms. Artemia salina was not able to survive and S. alba could not prolong roots in the eluates of all samples (100% inhibition). Freshwater algae (D. subspicatus) were not significantly affected by the samples (max. 12% inhibition, max. 16% stimulation). The biomass of yeasts (S. cerevisae) was strongly stimulated in the presence of eluates in a comparison to control (max. 38% stimulation).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…The epoxy resin was mixed with hardener in a ratio of 2:1, then the rapeseed straw was added; the amount of epoxy material was 5% of the total weight of the mixture [ 40 ].…”

Section: Methodsmentioning

confidence: 99%