Paper-Based Laminates Impregnated with a Hybrid Lignin-Phenol-Formaldehyde Resin

Němec, Miroslav; Hájková, Kateřina; Hýsek, Štěpán

doi:10.3390/ma16072669

Cited by 2 publications

(2 citation statements)

References 21 publications

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“…The improvement of the stiffness and mechanical properties of PLA has been confirmed by Teymoorzadeh and Hedieh Rodrigue [48], whose study involved various additions of wood flour. Also, according to Němec et al [49], the incorporation of 1% lignin HPL leads to a significant hardness improvement. The lower hardness of PCL has been noted by Quiles-Carrillo et al [50], who modified blends of PLA and PCL using thermoplastic starch.…”

Section: Resistance To Scratch and A Relative Hardnessmentioning

confidence: 92%

Carbon Capture and Storage through Upcycling of Suberinic Acid Residues in Wood Composites Finishing

Jeżo,

Kowaluk

2023

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Finishing coatings used in the wood-based composite industry play a key role in the final appearance of the finished product. However, the use of such coatings is not only for aesthetic purposes, but also to protect the product against surface damage and moisture or to minimize the emission of harmful substances. The latter is an extremely important factor in terms of safety for both the manufacturer and the user, which is why the emissivity test is one of the most important tests conducted in this case. Carbon-rich materials, such as those remaining from the extraction of birch bark, can fulfill the role of minimizing the emission of harmful substances. In this article, an attempt to create coatings in the form of a film by combining a biopolymer with suberinic acid residues (SARs) was made. Two types of biopolymers were used, polylactide (PLA) and polycaprolactone (PCL), in various polymer–SAR ratios. Suberinic acid as a residue is a raw material that can potentially contribute positively to the fixing of CO2 from the atmosphere, which creates the possibility for further use. As part of this study, the obtained coatings were tested in terms of scratch resistance, relative hardness, cold liquids, total volatile organic compounds (TVOCs), formaldehyde emission, surface absorption, etc. Differences between the polymers used and the effect of the SAR additive on selected surface properties were demonstrated. The addition of carbon-rich SAR significantly improves gas barrier properties of the PLA- and PCL-based surface finishing materials. The relative hardness and scratch resistance also increased with rising SAR content. However, the increasing content of SAR filler acts as a limiter in the depth of penetration of the deposited surface finishing materials onto the wood surface. It is possible to state that this innovative approach regarding (1) the utilization of biopolymers as a matrix, instead of conventional, crude oil-based resins, and (2) the incorporation of post-processed carbon-rich waste lignocellulosic materials to produce the surface finishing and/or protective films has been confirmed.

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Section: Resistance To Scratch and A Relative Hardnessmentioning

confidence: 92%

Carbon Capture and Storage through Upcycling of Suberinic Acid Residues in Wood Composites Finishing

Jeżo,

Kowaluk

2023

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“…The improvement of the stiffness and mechanical properties of PLA has been confirmed by [48], where various addition of wood flour has been applied. Also, according to [49], the incorporation of 1% lignin HPL leads to significant hardness improvement. The lower hardness of PCL has been noted by [50], where the blends of PLA and PCL have been modified by thermoplastic starch.…”

Section: Resistance To Scratch and A Relative Hardnessmentioning

confidence: 99%

Carbon Capture and Storage through Upcycling of Suberinic Acid Residues in Wood Composites Finishing

Jeżo¹,

Kowaluk²

2023

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Finishing coatings used in the wood-based composites industry play a key role in the final appearance of the finished product. However, the use of such coatings is not only for aesthetic purposes but also to protect the product against surface damage and moisture or minimize the emission of harmful substances. The latter is an extremely important factor in terms of safety for both the manufacturer and the user, which is why the emissivity test is one of the most important tests in the case of finishing coatings. Such a role can be played by carbon-rich materials, such as those remaining from the extraction of birch bark. In this article, an attempt was made to create coatings in the form of a film by combining a biopolymer with suberinic acid residues (SAR). There were two types of biopolymers used – polylactide (PLA) and polycaprolactone (PCL), in various polymer-SAR ratios. SAR as a residue, is a material that bounds CO2 from the atmosphere and creates a possibility of further use. As part of this study, the obtained coatings were tested in terms of resistance to scratch, relative hardness, cold liquids, total volatile organic compounds (TVOC) and formaldehyde emission, surface absorption etc. Differences in the polymers used and the effect of the SAR additive on selected surface properties were demonstrated. The addition of carbon-rich SAR significantly improves the gas barrier properties of the surface finishing materials based on PLA and PCL. The relative hardness and scratch resistance has also increased with raising SAR content. However, the increasing content of SAR filler act as a limiter in the depth of penetration of deposited surface finishing materials onto the wood surface.

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Paper-Based Laminates Impregnated with a Hybrid Lignin-Phenol-Formaldehyde Resin

Cited by 2 publications

References 21 publications

Carbon Capture and Storage through Upcycling of Suberinic Acid Residues in Wood Composites Finishing

Carbon Capture and Storage through Upcycling of Suberinic Acid Residues in Wood Composites Finishing

Carbon Capture and Storage through Upcycling of Suberinic Acid Residues in Wood Composites Finishing

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