<i>Pinus caribaea</i>
            var.
            <i>hondurensis</i>
            Wood Impregnated with Methyl Methacrylate

Stolf, Denise Ortigosa; Bertolini, Marília da Silva; Christofóro, André Luis; Panzera, Túlio Hallak; Filho, Sérgio Luiz Moni Ribeiro; Lahr, Francisco Antônio Rocco

doi:10.1061/(asce)mt.1943-5533.0001830

Cited by 5 publications

(5 citation statements)

References 15 publications

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“…The esterification reaction between VA and the hydroxy groups in bamboo resulted in an increase in the degree of the crystallinity of cellulose, and this was in good agreement with the results from Wei et al [51]. The decrease in residual mass after grafting MMA was because of the presence of MMA, which degraded more easily than bamboo [42].…”

Section: Resultssupporting

confidence: 87%

“…As previously stated, studies reported in the literature have mainly focused individually on VA acetylation or MMA in situ polymerization of wood [23,27,32,37,39,41,42]. These two methods have been documented, and it has been concluded that both lead, to different extents, to improved dimensional stability and increased decay resistance of wood.…”

Section: Introductionmentioning

confidence: 99%

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Combined Chemical Modification of Bamboo Material Prepared Using Vinyl Acetate and Methyl Methacrylate: Dimensional Stability, Chemical Structure, and Dynamic Mechanical Properties

Huang

Jiang

Yu³

et al. 2019

Polymers

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Acetylation and in situ polymerization are two typical chemical modifications that are used to improve the dimensional stability of bamboo. In this work, the combination of chemical modification of vinyl acetate (VA) acetylation and methyl methacrylate (MMA) in situ polymerization of bamboo was employed. Performances of the treated bamboo were evaluated in terms of dimensional stability, wettability, thermal stability, chemical structure, and dynamic mechanical properties. Results show that the performances (dimensional stability, thermal stability, and wettability) of bamboo that was prepared via the combined pretreatment of VA and MMA (VA/MMA-B) were better than those of raw bamboo, VA single-treated bamboo (VA-B), and MMA single-treated bamboo (MMA-B). According to scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) analyses, VA and MMA were mainly grafted onto the surface of the cell wall or in the bamboo cell lumen. The antiswelling efficiency and contact angle of VA/MMA-B increased to maximum values of 40.71% and 107.1°, respectively. From thermogravimetric analysis (TG/DTG curves), the highest onset decomposition temperature (277 °C) was observed in VA/MMA-B. From DMA analysis, the storage modulus (E’) of VA/MMA-B increased sharply from 15,057 Pa (untreated bamboo) to 17,909 Pa (single-treated bamboo), and the glass transition temperature was improved from 180 °C (raw bamboo) to 205 °C (single-treated bamboo).

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Section: Resultssupporting

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Combined Chemical Modification of Bamboo Material Prepared Using Vinyl Acetate and Methyl Methacrylate: Dimensional Stability, Chemical Structure, and Dynamic Mechanical Properties

Huang

Jiang

Yu³

et al. 2019

Polymers

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“…An increase in temperature up to 220°C increased the boron retention to 4.2% and 5.1% for both woods, respectively (Salman et al 2014). Bulk agent impregnation followed by heat treatment is aimed to form a polymer from monomer compounds, e.g., styrene and methyl methacrylate (Stolf et al 2017). Those two monomers were reported to have successfully impeded boron leaching.…”

Section: Introductionmentioning

confidence: 99%

The Hydrophilicity of Samama Wood Surface Quality after Boron, Methyl Methacrylate Impregnation, and Heat Treatment

Cahyono,

Priadi,

Novriyanti

et al. 2024

J. Sylva Lestari

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Indicators of surface roughness and surface-free energy can represent the improvement in wood surface quality. In this study, those two indicators were used to determine the change in the samama (Anthocephalus macrophyllus) wood surface following two modification steps, namely impregnation and heat treatment. The first step was boron impregnation in two forms applied separately, i.e., boric acid and borax. The second step was impregnation of methyl methacrylate followed by heat treatment at 90°C and 180°C. Surface roughness was determined following the ISO 4287:1997 standard, and surface free energy was analyzed using the Rabel Method. The results showed that the radial surface of samama wood naturally had a lower roughness than the tangential surface. Impregnation with boric acid, borax, and methyl methacrylate increased the wood surface roughness. However, heat treatment at 180°C tended to smooth the rough surface. Total surface free energy was altered after borax and methyl methacrylate impregnation. However, heat treatment seemingly withdrew the alteration. The polar components and dispersion contributed to total surface free energy with different compositions. In this study, the change in surface roughness was not congruent with the change in total surface free energy. Keywords: boron, heat treatment, impregnation, samama, surface free energy

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“…It has good dimensional stability, hardness, strength, and abrasion resistance, making it widely used in the fields of construction, furniture, musical instruments, and industrial equipment [ 7 ]. For instance, previous studies have utilized various monomers, including styrene [ 8 ], methyl methacrylate [ 9 ], n-butyl acrylate [ 10 ], alkoxysilane coupling agents [ 11 ], vinyl monomers [ 12 ], methyl methacrylate (MMA) [ 13 ], and unsaturated polyester resins [ 14 ], to impregnate the wood and polymerize, filling the cell lumina to enhance the strength and dimensional stability of the wood. Research has shown that the composite treatment of wood with functional monomers, such as propylene oxide and methyl methacrylate monomers [ 15 ], ethylene/methyl methacrylate, and styrene/acrylonitrile monomers [ 16 ], can improve the comprehensive performance of wood.…”

Section: Introductionmentioning

confidence: 99%

Strong and Durable Wood Designed by Cell Wall Bulking Combined with Cell Lumen Filling

Dong,

Qi,

Dong

et al. 2023

Polymers

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Traditional wood–polymer composite (WPC) based on the in situ polymerization of ethylene unsaturated monomers in the cellular cavity of wood is significant for the high-value-added utilization of low-quality wood. However, this type of WPC has the problems of volatile monomers, low conversion rates, odor residue, and poor compatibility between the polymer and wood interface, which hinder its promotion and application. In this study, a two-step process of cell wall bulking in combination with cell lumen filling was prepared to modify wood using Maleic anhydride (MAN) as the bulking agent and GMA-EGDMA (molar ratio 2:1) as the active monomer system. The results indicate that the modulus of rupture (MOR) (125.19 ± 8.41 MPa), compressive strength (116.38 ± 7.69 MPa), impact toughness (55.4 ± 2.95 KJ m−2), and hardness (6187 ± 273 N) of the bulking–filling wood composite materials were improved by 54%, 56%, 36%, and 66%, respectively, compared with those of poplar wood. These properties were superior to those of the traditional styrene (PSt)-WPC and even exceeded the performance of Xylosma congesta (Lour.) Merr, a high-quality wood from northeast China. Meanwhile, the mass loss of wood composite materials with bulking–filling treatment was only 2.35 ± 0.05%, and the internal structure remained intact, presenting excellent decay resistance. Additionally, the treatment also significantly improved the thermal and dimensional stability of the wood composites. This study provides a theoretical basis and guidance for realizing the high-value-added application of low-quality wood and the preparation of highly durable wood-based composites.

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Pinus caribaea var. hondurensis Wood Impregnated with Methyl Methacrylate

Cited by 5 publications

References 15 publications

Combined Chemical Modification of Bamboo Material Prepared Using Vinyl Acetate and Methyl Methacrylate: Dimensional Stability, Chemical Structure, and Dynamic Mechanical Properties

Combined Chemical Modification of Bamboo Material Prepared Using Vinyl Acetate and Methyl Methacrylate: Dimensional Stability, Chemical Structure, and Dynamic Mechanical Properties

The Hydrophilicity of Samama Wood Surface Quality after Boron, Methyl Methacrylate Impregnation, and Heat Treatment

Strong and Durable Wood Designed by Cell Wall Bulking Combined with Cell Lumen Filling

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