Abstract
To improve the hydrophobicity of wood, utilizing a silica/wax composite emulsion (PPW@SiO2), which was prepared by maleic anhydride-grafted polypropylene wax (PPW) and nanosilica, served as a hydrophobic agent. The hydrophobicity modifying process of fast-growing poplar was carried out by heating permeation and hot pressing to prepare in-depth hydrophobic wood. The results show that the hydrophobic agent can fill the pores of poplar partly and form a two-dimensional, “petal-like”, rough hydrophobic structure in the pores. The water contact angle (WCA) on the surface of modified poplar can reach 140.3° when the amount of SiO2 is 1%. Even after surface grinding of 3 mm, the WCA is still higher than 130°, indicating the hydrophobic wood has a good performance of in-depth hydrophobicity. Furthermore, the surface of hydrophobic wood presents an exceptional self-cleaning function, and the physical and mechanical properties are also improved. Compared with a reference sample, the density, surface hardness, modulus of elasticity, compressive strength, and modulus of rupture of hydrophobic wood are increased by 66.67%, 53.16%, 55.60%, 49.50%, and 40.87%, respectively, and the water absorption in hydrophobic wood is also significantly decreased.
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References
Ammar Y, Swailes D, Bridgens B, Chen J (2015) Influence of surface roughness on the initial formation of biofilm. Surf Coat Technol 284:410–416. https://doi.org/10.1016/j.surfcoat.2015.07.062
Bai X, Xue CH, Jia ST (2016) Surfaces with sustainable superhydrophobicity upon mechanical abrasion. ACS Appl Mater Interfaces 8:28171–28179. https://doi.org/10.1021/acsami.6b08672
Brischke C, Melcher E (2015) Performance of wax-impregnated timber out of ground contact: results from long-term field testing. Wood Sci Technol 49:189–204. https://doi.org/10.1007/s00226-014-0692-6
Candan Z, Korkut S, Unsal O (2013) Effect of thermal modification by hot pressing on performance properties of paulownia wood boards. Ind Crops Prod 45:461–464. https://doi.org/10.1016/j.indcrop.2012.12.024
Chang H, Tu K, Wang X, Liu J (2015) Fabrication of mechanically durable superhydrophobic wood surfaces using polydimethylsiloxane and silica nanoparticles. RSC Adv 5:30647–30653. https://doi.org/10.1039/c5ra03070f
Chen P, Wei B, Zhu X, Gao D, Gao Y, Cheng J, Liu Y (2019a) Fabrication and characterization of highly hydrophobic rutile TiO2-based coatings for self-cleaning. Ceram Int 45:6111–6118. https://doi.org/10.1016/j.ceramint.2018.12.085
Chen Y, Guo X, Peng Y, Cao J (2019b) Water absorption and mold susceptibility of wood flour/polypropylene composites modified with silane-wax emulsions. Polym Compos 40:141–148. https://doi.org/10.1002/pc.24616
Dong Y, Yan Y, Wang K, Li J, Zhang S, Xia C, Shi S, 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
Ebert D, Bhushan B (2012) Transparent, superhydrophobic, and wear-resistant coatings on glass and polymer substrates using SiO2, ZnO, and ITO nanoparticles. Langmuir 28:11391–11399. https://doi.org/10.1021/la301479c
Elaieb M, Candelier K, Pétrissans A, Dumarcay S, Gerardin P, Petrissans M (2016) Heat treatment of Tunisian soft wood species: effect on the durability, chemical modifications and mechanical properties. Maderas Cienc Tecnol 17:699–710. https://doi.org/10.4067/S0718-221X2015005000061
Gao Y, Gereige I, El Labban A, Cha D, Isimjan TT, Beaujuge PM (2014) Highly transparent and UV-resistant superhydrophobic SiO2-coated ZnO nanorod arrays. ACS Appl Mater Interfaces 6:2219–2223. https://doi.org/10.1021/am405513k
Gao L, Lu Y, Zhan X, Li J, Sun Q (2015) A robust, anti-acid, and high-temperature-humidity-resistant superhydrophobic surface of wood based on a modified TiO2 film by fluoroalkyl silane. Surf Coat Technol 262:33–39. https://doi.org/10.1016/j.surfcoat.2014.12.005
Garcia RA, Cloutier A, Riedl B (2005) Dimensional stability of MDF panels produced from fibres treated with maleated polypropylene wax. Wood Sci Technol 39:630–650. https://doi.org/10.1007/s00226-005-0028-7
Garcia RA, Cloutier A, Riedl B (2006) Chemical modification and wetting of medium density fibreboard panels produced from fibres treated with maleated polypropylene wax. Wood Sci Technol 40:402–416. https://doi.org/10.1007/s00226-005-0043-8
Guan H, Cheng Z, Wang X (2018) Highly compressible wood sponges with a spring-like lamellar structure as effective and reusable oil absorbents. ACS Nano 12:10365–10373. https://doi.org/10.1021/acsnano.8b05763
Huang H, Liu M, Li Y et al (2018) Polyphenylene sulfide microfiber membrane with superhydrophobicity and superoleophilicity for oil/water separation. J Mater Sci 53:13243–13252. https://doi.org/10.1007/s10853-018-2546-3
Huang J, Wei S, Zhang L, Yang Y, Yang S, Shen Z (2019) Fabricating the superhydrophobic nickel and improving its antifriction performance by the laser surface texturing. Materials (Basel) 12:1–10. https://doi.org/10.3390/ma12071155
Humar M, Kržišnik D, Lesar B, Thaler N, Ugovsek A, Zuoancic K, Zlahtic M (2017) Thermal modification of wax-impregnated wood to enhance its physical, mechanical, and biological properties. Holzforschung 71:57–64. https://doi.org/10.1515/hf-2016-0063
Jia S, Chen H, Luo S, Qing Y, Deng S, Yan N, Wu Y (2018) One-step approach to prepare superhydrophobic wood with enhanced mechanical and chemical durability: driving of alkali. Appl Surf Sci 455:115–122. https://doi.org/10.1016/j.apsusc.2018.05.169
Lesar B, Pavlič M, Petrič M, Skapin AS, Humar M (2011) Wax treatment of wood slows photodegradation. Polym Degrad Stab 96:1271–1278. https://doi.org/10.1016/j.polymdegradstab.2011.04.006
Liao R, Zuo Z, Guo C, Zhuang A, Zhao X, Yuan Y (2015) Anti-icing performance in glaze ice of nanostructured film prepared by RF magnetron sputtering. Appl Surf Sci 356:539–545. https://doi.org/10.1016/j.apsusc.2015.08.103
Lozhechnikova A, Bellanger H, Michen B, Burgert I, Österberg M (2017) Surfactant-free carnauba wax dispersion and its use for layer-by-layer assembled protective surface coatings on wood. Appl Surf Sci 396:1273–1281. https://doi.org/10.1016/j.apsusc.2016.11.132
Mao H, Qiu M, Bu J, Chen X, Verweij H, Fan Y (2018) Self-cleaning piezoelectric membrane for oil-in-water separation. ACS Appl Mater Interfaces 10:18093–18103. https://doi.org/10.1021/acsami.8b03951
Marmur A (2004) The lotus effect: superhydrophobicity and metastability. Langmuir 20:3517–3519. https://doi.org/10.1021/la036369u
Mora Mendez DF, Olaniran SO, Rüggeberg M, Burgert I, Herrmann HJ, Wittel FK (2019) Mechanical behavior of chemically modified Norway spruce: a generic hierarchical model for wood modifications. Wood Sci Technol 53:447–467. https://doi.org/10.1007/s00226-019-01082-3
Moraila-Martínez CL, Montes Ruiz-Cabello FJ, Cabrerizo-Vílchez MA, Rodríguez-Valverde MA (2012) The effect of contact line dynamics and drop formation on measured values of receding contact angle at very low capillary numbers. Colloids Surf A Physicochem Eng Asp 404:63–69. https://doi.org/10.1016/j.colsurfa.2012.04.012
Olaniran SO, Michen B, Mora Mendez DF, Wittel FK, Bachtiar EV, Burgert I, Rüggeberg M (2019) Mechanical behaviour of chemically modified Norway spruce (Picea abies L. Karst.): experimental mechanical studies on spruce wood after methacrylation and in situ polymerization of styrene. Wood Sci Technol 53:425–445. https://doi.org/10.1007/s00226-019-01080-5
Qian J, Zhang H, Cheng G, Huang Z, Dang S, Xu Y (2010) Polypropylene wax (PPw)/silica hybrid by in situ non-aqueous sol–gel process for preparation of PP/silica nanocomposites. J Sol–Gel Sci Technol 56:300–309. https://doi.org/10.1007/s10971-010-2306-6
Qu M, Yuan M, Liu S, He J, Xue M, Liu X, Li S, He J (2018) A versatile and efficient method to fabricate recyclable superhydrophobic composites based on brucite and organosilane. J Mater Sci 53:396–408. https://doi.org/10.1007/s10853-017-1503-x
Rodič P, Milošev I (2019) One-step ultrasound fabrication of corrosion resistant, self-cleaning and anti-icing coatings on aluminium. Surf Coat Technol 369:175–185. https://doi.org/10.1016/j.surfcoat.2019.03.082
Samyn P, Stanssens D, Paredes A, Becker G (2014) Performance of organic nanoparticle coatings for hydrophobization of hardwood surfaces. J Coat Technol Res 11:461–471. https://doi.org/10.1007/s11998-014-9576-9
Shen H, Zhang S, Cao J, Jiang J, Wang W (2018) Improving anti-weathering performance of thermally modified wood by TiO2 sol or/and paraffin emulsion. Constr Build Mater 169:372–378. https://doi.org/10.1016/j.conbuildmat.2018.03.036
Shi Z, Zhang W, Zhang F, Liu X, Wang D, Jin J, Jiang L (2013) Ultrafast separation of emulsified oil/water mixtures by ultrathin free-standing single-walled carbon nanotube network films. Adv Mater 25:2422–2427. https://doi.org/10.1002/adma.201204873
Tajvidi M, Falk RH, Hermanson JC (2006) Effect of natural fibers on thermal and mechanical properties of natural fiber polypropylene composites studied by dynamic mechanical analysis. J Appl Polym Sci 101:4341–4349. https://doi.org/10.1002/app.24289
Tay CY, Fang W, Setyawati MI et al (2013) Reciprocal response of human oral epithelial cells to internalized silica nanoparticles. Part Part Syst Charact 30:784–793. https://doi.org/10.1002/ppsc.201300111
Toro RG, Calandra P, Federici F et al (2020) Development of superhydrophobic, self-cleaning, and flame-resistant DLC/TiO2 melamine sponge for application in oil–water separation. J Mater Sci 55:2846–2859. https://doi.org/10.1007/s10853-019-04211-2
Tu K, Kong L, Wang X, Liu J (2016) Semitransparent, durable superhydrophobic polydimethylsiloxane/SiO2 nanocomposite coatings on varnished wood. Holzforschung 70:1039–1045. https://doi.org/10.1515/hf-2016-0024
Wang C, Zhang M, Xu Y, Wang S, Liu F, Ma M, Zang D, Gao Z (2014) One-step synthesis of unique silica particles for the fabrication of bionic and stably superhydrophobic coatings on wood surface. Adv Powder Technol 25:530–535. https://doi.org/10.1016/j.apt.2013.08.007
Wang W, Zhu Y, Cao J, Guo X (2015) Thermal modification of southern pine combined with wax emulsion preimpregnation: effect on hydrophobicity and dimensional stability. Holzforschung 69:405–413. https://doi.org/10.1515/hf-2014-0106
Wang T, Li L, Cao Y, Wang Q, Guo C (2019) Preparation and flame retardancy of castor oil based UV-cured flame retardant coating containing P/Si/S on wood surface. Ind Crops Prod 130:562–570. https://doi.org/10.1016/j.indcrop.2019.01.017
Weththimuni ML, Capsoni D, Malagodi M, Licchelli M (2019) Improving wood resistance to decay by nanostructured ZnO-Based treatments. J Nanomater 2019:1–11. https://doi.org/10.1155/2019/6715756
Wu Y, Jia S, Qing Y, Luo S, Liu M (2016) A versatile and efficient method to fabricate durable superhydrophobic surfaces on wood, lignocellulosic fiber, glass, and metal substrates. J Mater Chem A 4:14111–14121. https://doi.org/10.1039/c6ta05259b
Xu S, Wang Q, Wang N, Zheng X (2019) Fabrication of superhydrophobic green surfaces with good self-cleaning, chemical stability and anti-corrosion properties. J Mater Sci 54:13006–13016. https://doi.org/10.1007/s10853-019-03789-x
Xuan L, Fu Y, Liu Z, Wei P, Wu L (2018) Hydrophobicity and photocatalytic activity of a wood surface coated with a Fe3+-doped SiO2/TiO2 film. Materials (Basel) 11:2954. https://doi.org/10.3390/ma11122594
Yang Z, Peng H, Wang W, Liu T (2010) Crystallization behavior of poly(ε-caprolactone)/layered double hydroxide nanocomposites. J Appl Polym Sci 116:2658–2667. https://doi.org/10.1002/app
Yeniocak M, Goktas O, Aliyazicioglu S, Colak M, Yeniocak S, Ozen E, Ugurlu M (2017) Determination of the effect of liquid glass (SiO2) on color stability of wood stained by natural dyes. DRV Ind 68:351–357. https://doi.org/10.5552/drind.2017.1707
Zhang X, Guan Y, Zhao Y, Zhang Z, Qiu D (2015) Reinforcement of silicone rubber with raspberry-like SiO2@Polymer composite particles. Polym Int 64:992–998. https://doi.org/10.1002/pi.4900
Zheng R, Tshabalala MA, Li Q, Wang H (2015) Weathering performance of wood coated with a combination of alkoxysilanes and rutile TiO2 heirarchical nanostructures. BioResources 10:7053–7064. https://doi.org/10.15376/biores.10.4.7053-7064
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This work was financially supported by Scientific Research Project of Hunan Provincial Education Department (No: 19A519), Postgraduate Science and Technology Innovation Project of Hunan Province (No: CX2017B408).
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Wang, Z., Zou, W., Sun, D. et al. Fabrication and performance of in-depth hydrophobic wood modified by a silica/wax complex emulsion combined with thermal treatment. Wood Sci Technol 54, 1223–1239 (2020). https://doi.org/10.1007/s00226-020-01214-0
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DOI: https://doi.org/10.1007/s00226-020-01214-0