Effect of impregnation and in‐situ polymerization of methacrylates on hardness of sugar maple wood

Zhang, Yaolin; Zhang, S. Y.; Chui, Ying Hei; Wan, Hui

doi:10.1002/app.22534

Cited by 23 publications

(11 citation statements)

References 33 publications

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“…The increases in mechanical properties due to the MMA impregnation were also observed in others studies [7,29,30]. This can be attributed to the filling of cellular lumens with the polymer segments of high mechanical properties, which act as mechanical supports from inside the wood pores.…”

Section: Discussionsupporting

confidence: 76%

Thermochemical and Mechanical Properties of Pine Wood Treated by In Situ Polymerization of Methyl Methacrylate (MMA)

Acosta

Labidi

Schulz

et al. 2020

Forests

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The impregnation of low-molecular-weight monomers prior to polymerize them inside the wood may be an efficient way to improve some important wood properties. This work aimed to determine some technological properties of wood-based composites (WPC) produced by in situ polymerization, using a pine wood (Pinus elliottii Engelm.) impregnated with methyl methacrylate (MMA). For that, samples taken from both juvenile (JV) and mature (MT) pine woods were treated with MMA. Physical, mechanical, chemical, thermal and morphological features were evaluated. MMA-treated woods from both juvenile and mature woods presented superior physical, mechanical (expect brittleness) and thermal properties when compared to pristine ones. The infrared spectra and morphological analysis by scanning electron microscopy (SEM) confirmed the presence of the monomer inside the pine wood. The juvenile wood presented higher treatability than the mature wood, due to its higher content of intra- and inter-cellular spaces.

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Section: Discussionsupporting

confidence: 76%

Thermochemical and Mechanical Properties of Pine Wood Treated by In Situ Polymerization of Methyl Methacrylate (MMA)

Acosta

Labidi

Schulz

et al. 2020

Forests

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“…The short chemical chains propagated to longchain PMMA: Little interaction was found between the nonpolar MMA monomer and the functional groups on the wood surface. 4,9,10 Previous findings have suggested that the hardening process is accomplished by the filling of the void structures, such as the vessels and lumen, in the wood,. [4][5][6][7]9 SEM images of the treated hybrid poplar wood (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…4,9,10 Previous findings have suggested that the hardening process is accomplished by the filling of the void structures, such as the vessels and lumen, in the wood,. [4][5][6][7]9 SEM images of the treated hybrid poplar wood (Fig. 1) also showed that PMMA filled the vessels, lumen, and other void spaces in the wood structure.…”

Section: Resultsmentioning

confidence: 99%

Surface properties of methyl methacrylate hardened hybrid poplar wood

Koubaa

Ding

Chaala

et al. 2011

J of Applied Polymer Sci

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The surface properties of fast-growing poplar clones and their methyl methacrylate (MMA)-hardened wood related to potential end uses were investigated. Samples from 24 trees of six hybrid poplar clones in one plantation in Quebec were hardened with MMA. The effects of MMA hardening on the density and surface properties were studied. Scanning electron microscopy and Fourier transform infrared analysis showed that filling the voids in the wood structure was the main hardening mechanism. The incorporation of the polymer increased the density of all of the poplar clones by 120-160%. The Janka hardness was found to be 2.5-4 times higher in the treated poplar wood than in the untreated poplar wood. The treated wood also exhibited superior abrasion resistance compared to the controls. The results indicate that hardening with MMA improved the surface properties and that the MMA-hardened wood was comparable to natural hardwoods.

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“…In contrast, wood‐polymer composites are obtained by impregnating wood with monomers and initiators and subsequently applying bulk free‐radical polymerization [2, 5–8]. This class of composites attracts increasing interest due to potential construction applications, especially parquet flooring [2, 6].…”

Section: Introductionmentioning

confidence: 99%

Development of semitransparent wood‐polymer composites

Dias

Alves²,

Fagg

et al. 2012

Vinyl Additive Technology

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A new material has been developed consisting of pieces of wood embedded within a matrix of acrylic polymer, resulting in a transparent or semitransparent wood‐based product. This material presents quite appealing aesthetic features, thereby opening new possibilities for decorative applications. Because acrylic and methacrylic monomers are in the liquid state at room temperature, it is possible to introduce wood (in the current case, walnut wood) into a mixture of acrylic (hydroxypropyl acrylate) and/or methacrylic monomers (methyl methacrylate and 2‐hydroxyethyl methacrylate) along with a plasticizer (dioctyl phthalate) in the presence of a chemical initiator (benzoyl peroxide). A transparent polymeric matrix with dispersed wood is then obtained through bulk free‐radical polymerization. Introducing this reaction mixture along with pieces of wood into a mold results in a wood‐polymer composite. A 24−1 experimental fractional factorial design was implemented to study the importance of the composition of these materials on several relevant properties. The sheets produced were characterized by tensile testing, dynamic mechanical thermal analysis, thermal gravimetric analysis, and heat deflection temperature. The models obtained for predicting each property pointed to valuable insights regarding the influential constituents. In particular, our results suggested that monomers to be used in future applications of this material should be selected in terms of their cost and the desired flexibility for the final product, not in terms of their polarity. J. VINYL ADDIT. TECHNOL., 2012. © 2012 Society of Plastics Engineers

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Effect of impregnation and in‐situ polymerization of methacrylates on hardness of sugar maple wood

Cited by 23 publications

References 33 publications

Thermochemical and Mechanical Properties of Pine Wood Treated by In Situ Polymerization of Methyl Methacrylate (MMA)

Thermochemical and Mechanical Properties of Pine Wood Treated by In Situ Polymerization of Methyl Methacrylate (MMA)

Surface properties of methyl methacrylate hardened hybrid poplar wood

Development of semitransparent wood‐polymer composites

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