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Wood Science and Technology

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19-09-2022 | Original

Building bridging structures and crystallization reinforcement in sodium silicate-modified poplar by dimethylol dihydroxyethylene urea

Authors: Xiaoqian Bi, Yuan Zhang, Ping Li, Yiqiang Wu, Guangming Yuan, Yingfeng Zuo

Published in: Wood Science and Technology | Issue 5/2022

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Abstract

The mechanical and flame-retardant properties of sodium silicate-impregnated fast-growing poplar have been greatly improved by a wide variety of methods, which has solved the problem of insufficient supply of natural wood to a certain extent. However, sodium silicate is easily leached and has high hygroscopicity, and sodium silicate-modified poplar (SSMP) has low anti-shrink efficiency (ASE), which make it difficult to maintain its dimensional stability. Dimethylol dihydroxyethylene urea (DMDHEU) contains polyhydroxymethyl active groups that are highly reactive with wood fibers and sodium silicate. Therefore, in this study, sodium silicate and DMDHEU were used as a composite modifier to carry out vacuum-pressure-impregnation modification on fast-growing poplar to form a bridging structure. This treatment fixed the sodium silicate and improved the dimensional stability of poplar. Mechanical properties of poplar wood were improved by modifications with sodium silicate and DMDHEU. The dimensional stability was greatly improved, and the fixation of sodium silicate was improved. Compared with the SSMP, the leaching rate and ASE of SS/DDMP were reduced by 48.82% and 41.79%, respectively. XRD, FTIR, and XPS results showed that C–O–C and Si–O–C bonds were formed between DMDHEU and the wood cell walls and sodium silicate. These bonds closely bound the cellulose crystals, which reduced the number of –OH groups being accessible for water and, thus, the moisture absorption of SS/DDMP. In addition, due to the increase in crystallinity, the heat resistance was further enhanced. The cone calorimetry results showed that SS/DDMP had the lowest heat release rate and total heat release. Compared with SSMP, the mean smoke release rate (mean SPR) and total smoke release decreased by 40.38% and 40.83%, respectively. Moreover, the release of CO and CO₂ decreased. In conclusion, compared with other modification methods, the use of SS/DD impregnation to modify poplar has the potential to produce good overall performance of poplar with high-dimensional stability, flame retardancy, and smoke suppression.

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Arzola-Villegas X, Lakes R, Plaza NZ, Jakes JE (2019) Wood moisture-induced swelling at the cellular scale-Ab intra. Forests 10(11):996. https://doi.org/10.3390/f10110996CrossRef

Chauhan SS, Aggarwal P (2004) Effect of moisture sorption state on transverse dimensional changes in wood. Holz Roh Werkst 62(1):50–55. https://doi.org/10.1007/s00107-003-0437-yCrossRef

Chen H, Lang Q, Bi Z, Miao X, Li Y, Pu J (2014) Impregnation of poplar wood (Populus euramericana) with methylolurea and sodium silicate sol and induction of in-situ gel polymerization by heating. Holzforschung 68(1):45–52. https://doi.org/10.1515/hf-2013-0028CrossRef

Chu D, Mu J, Zhang L, Li Y (2017) Promotion effect of NP fire retardant pre-treatment on heat-treated poplar wood. Part 2: hygroscopicity, leaching resistance, and thermal stability. Holzforschung 71(3):217–223. https://doi.org/10.1515/hf-2016-0213CrossRef

Dong Y, Yan Y, Wang K, Li J, Zhang S, Xia C, Cai L (2016) Improvement of water resistance, dimensional stability, and mechanical properties of poplar wood by rosin impregnation. Eur J Wood Prod 74(2):177–184. https://doi.org/10.1007/s00107-015-0998-6CrossRef

Emmerich L, Militz H, Brischke C (2020) Long-term performance of DMDHEU-treated wood installed in different test set-ups in ground, above ground and in the marine environment. Int Wood Prod J 11(1):27–37. https://doi.org/10.1080/20426445.2020.1715553CrossRef

Gao L, Zhan X, Lu Y, Li J, Sun Q (2015) pH-dependent structure and wettability of TiO₂-based wood surface. Mater Lett 142(1):217–220. https://doi.org/10.1016/j.matlet.2014.12.035CrossRef

Garskaite E, Karlsson O, Stankeviciute Z, Kareiva A, Jones D, Sandberg D (2019) Surface hardness and flammability of Na₂SiO₃ and nano-TiO₂ reinforced wood composites. RSC Adv 9(48):27973–27986. https://doi.org/10.1039/c9ra05200cCrossRefPubMedPubMedCentral

Gierlinger N, Schwanninger M, Reinecke A, Burgert I (2006) Molecular changes during tensile deformation of single wood fibers followed by Raman microscopy. Biomacromolecules 7(7):2077–2081. https://doi.org/10.1021/bm060236gCrossRef

Guan PF, Li P, Wu YQ, Li XG, Yuan GM, Zuo YF (2022) Comparative study on the properties of inorganic silicate and organic phenolic prepolymer modified poplar wood by vacuum cycle pressurization. J Renew Mater 10(9):2451–2463. https://doi.org/10.32604/jrm.2022.020459CrossRef

Guo B, Liu Y, Zhang Q, Wang F, Wang Q, Liu Y, Yu H (2017) Efficient flame-retardant and smoke-suppression properties of Mg-Al-layered double-hydroxide nanostructures on wood substrate. ACS Appl Mater Inter 9(27):23039–23047. https://doi.org/10.1021/acsami.7b06803CrossRefPubMed

Guo H, Özparpucu M, Windeisen-Holzhauser E, Schlepütz CM, Quadranti E, Gaan S, Burgert I (2020) Struvite mineralized wood as sustainable building material: mechanical and combustion behavior. ACS Sustain Chem Eng 8(28):10402–10412. https://doi.org/10.1021/acssuschemeng.0c01769CrossRef

Jiang T, Gao H, Sun J, Xie Y, Li X (2014) Impact of DMDHEU resin treatment on the mechanical properties of poplar. Polym Polym Compos 22(8):669–674. https://doi.org/10.1177/096739111402200803CrossRef

Ke Q, Yang SY, Wang JY (2015) Preliminary study on pivotal technology of furniture design based on modified fast-growing poplar. China For Prod Ind 42(2):8–1014. https://doi.org/10.19531/j.issn1001-5299.2015.02.003CrossRef

Kurt R, Tomak ED (2019) The effect of DMDHEU modification on physical and biological properties of parallel strand lumbers. Constr Build Mater 195:497–504. https://doi.org/10.1016/j.conbuildmat.2018.11.064CrossRef

Li P, Zhang Y, Zuo YF, Lv JX, Yuan GM, Wu YQ (2020) Preparation and characterization of sodium silicate impregnated Chinese fir wood with high strength, water resistance, flame retardant and smoke suppression. J Mater Res Technol 9(1):1043–1053. https://doi.org/10.1016/j.jmrt.2019.10.035CrossRef

Li P, Zhang Y, Zuo YF, Wu YQ, Yuan GM, Lu JX (2021) Comparison of silicate impregnation methods to reinforce Chinese fir wood. Holzforschung 75(2):126–137. https://doi.org/10.1515/hf-2020-0016CrossRef

Lindholm J, Brink A, Wilén CE, Hupa M (2012) Cone calorimeter study of inorganic salts as flame retardants in polyurethane adhesive with limestone filler. J Appl Polym Sci 123(3):1793–1800. https://doi.org/10.1002/app.34641CrossRef

Liu SQ, Bao FC (1999) Current situation and development trends of research on wood properties, processing and utilization of poplar plantation in China. Chin J Wood Sci Technol 13(3):14–16. https://doi.org/10.19455/j.mcgy.1999.03.004CrossRef

Liu Q, Du H, Lyu W (2021) Physical and mechanical properties of poplar wood modified by glucose-urea-melamine resin/sodium silicate compound. Forests 12(2):127. https://doi.org/10.3390/f12020127CrossRef

Morris B (2003) The components of the wired spanning forest are recurrent. Probab Theory Relat Fields 125(2):259–265. https://doi.org/10.1007/s00440-002-0236-0CrossRef

Nguyen TT, Xiao Z, Che W, Trinh HM, Xie Y (2019) Effects of modification with a combination of styrene-acrylic copolymer dispersion and sodium silicate on the mechanical properties of wood. J Wood Sci 65(1):1–11. https://doi.org/10.1186/s10086-019-1783-7CrossRef

Parikh DV, Thibodeaux DP, Condon B (2007) X-ray crystallinity of bleached and crosslinked cottons. Text Res J 77(8):612–616. https://doi.org/10.1177/0040517507081982CrossRef

Saleh M, Lee HM, Kemp KC, Kim KS (2014) Highly stable CO₂/N₂ and CO₂/CH₄ selectivity in hyper-cross-linked heterocyclic porous polymers. ACS Appl Mater Inter 6(10):7325–7333. https://doi.org/10.1021/am500728qCrossRefPubMed

Schindler WD, Hauser PJ (2004) Chemical finishing of textiles. Woodhead, CambridgeCrossRef

Segal L, Creely JJ, Martin AE, Conrad CM (1959) An empirical method for estimating the degree of crystallinity of native cellulose using the x-ray diffractometer. Text Res J 29(10):786–794. https://doi.org/10.1177/004051755902901003CrossRef

Sun J, Zhu XF, Wang XB (2012) Curing kinetics of phenol formaldehyde resin modified with sodium silicate. Appl Mech Mater 184:1471–1479. https://doi.org/10.4028/www.scientific.net/AMM.184-185.1471CrossRef

Sun ZY, Lv JX, Wang ZH, Wu YQ, Yuan GM, Zuo YF (2021) Sodium silicate/waterborne epoxy resin hybrid-modified Chinese fir wood. Wood Sci Technol 55(3):837–855. https://doi.org/10.1007/s00226-021-01287-5CrossRef

Toba K, Yamamoto H, Yoshida M (2013) Crystallization of cellulose microfibrils in wood cell wall by repeated dry-and-wet treatment, using X-ray diffraction technique. Cellulose 20(2):633–643. https://doi.org/10.1007/s10570-012-9853-7CrossRef

Van der Zee ME, Beckers EP, Militz H (1998) Influence of concentration, catalyst and temperature on dimensional stability of DMDHEU modified Scots pine. The International Research Group on Wood Preservation IRG/WP/98–40119.

Wang F, Li C, Liu M, Chen L, Liu Y (2019) Properties of poplar wood modified by a combined process of sodium silicate solution impregnation and heat treatment. China Wood Ind 30(6):31–34. https://doi.org/10.19455/j.mcgy.20160607CrossRef

Wu W, Yang CQ (2004) Statistical analysis of the performance of the flame retardant finishing system consisting of a hydroxy-functional organophosphorus oligomer and the mixture of DMDHEU and melamine–formaldehyde resin. Polym Degrad Stab 85(1):623–632. https://doi.org/10.1016/j.polymdegradstab.2004.02.002CrossRef

Wu GF, Jiang YF, Qu P, Lang Q, Pu J (2010) Effect of chemical modification and hot-press drying on poplar wood. BioResources 5(4):2581–2590. https://doi.org/10.15376/biores.5.4.2581-2590CrossRef

Xie Y, Krause A, Mai C (2005) Weathering of wood modified with the N-methylol compound 1,3-dimethylol-4,5-dihydroxyethyleneurea. Polym Degrad Stab 89(2):189–199. https://doi.org/10.1016/j.polymdegradstab.2004.08.017CrossRef

Xie Y, Liu N, Wang Q (2014) Combustion behavior of oak wood (Quercus mongolica L.) modified by 1, 3-dimethylol-4, 5-dihydroxyethyleneurea (DMDHEU). Holzforschung 68(8):881–887. https://doi.org/10.1515/hf-2013-0224CrossRef

Xu E, Zhang Y, Lin L (2020) Improvement of mechanical, hydrophobicity and thermal properties of Chinese fir wood by impregnation of nano silica sol. Polymers 12(8):1632. https://doi.org/10.3390/polym12081632CrossRefPubMedCentral

Yasuda R, Minato K, Norimoto M (1994) Chemical modification of wood by non-formaldehyde cross-linking reagents. Part 2: Moisture adsorption and creep properties. Wood Sci Technol 28(3):209–218. https://doi.org/10.1007/BF00193329CrossRef

Yasuda R, Minato K, Norimoto M (1995) Moisture adsorption thermodynamics of chemically modified wood. Holzforschung 49(6):548–554. https://doi.org/10.1515/hfsg.1995.49.6.548CrossRef

Zhang C, Keten S, Derome D, Carmeliet J (2021a) Hydrogen bonds dominated frictional stick-slip of cellulose nanocrystals. Carbohydr Polym 258(15):117682. https://doi.org/10.1016/j.carbpol.2021.117682CrossRefPubMed

Zhang Y, Bi XQ, Li P, Wu YQ, Yuan GM, Li XJ, Zuo YF (2021b) Sodium silicate/magnesium chloride compound-modified Chinese fir wood. Wood Sci Technol 55(6):1781–1794. https://doi.org/10.1007/s00226-021-01327-0CrossRef

Zhou X, Chen K, Yi H (2014) Synthesis and application of a formaldehyde-free flame retardant for bamboo viscose fabric. Text Res J 84(14):1515–1527. https://doi.org/10.1177/0040517514525877CrossRef

Zhou Y, Li P, Zhang Y, Yuan GM, Wang XJ, Wu YQ, Zuo YF (2020) Process optimization of sodium silicate reinforced Chinese fir wood based on respiratory impregnation. Mater Rep 34(18):18171–18176. https://doi.org/10.11896/cldb.19090068CrossRef

Title: Building bridging structures and crystallization reinforcement in sodium silicate-modified poplar by dimethylol dihydroxyethylene urea
Authors: Xiaoqian Bi
Yuan Zhang
Ping Li
Yiqiang Wu
Guangming Yuan
Yingfeng Zuo
Publication date: 19-09-2022
Publisher: Springer Berlin Heidelberg
Published in: Wood Science and Technology / Issue 5/2022
Print ISSN: 0043-7719
Electronic ISSN: 1432-5225
DOI: https://doi.org/10.1007/s00226-022-01414-w

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