Resistance to Growth of Molds for Wood Modified with Hydrophobic Hybrid Silica Gel Containing Copper Amine Complexes

Hao, Shaokun; Hu, Chuanshuang; Lin, Xiuyi; Gu, Jin; Yang, Hong; Zhang, Weiwei

doi:10.3390/ma14030577

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…In the case of the need to diagnose the presence of wood-decaying fungi or the degree of infestation of wood by fungi, the imaging and analytical methods of structural analysis can be advantageously used. In the past, Fourier transform infrared (FT-IR) [54][55][56], Raman spectroscopy [57,58], scanning electron microscopy [55,59], and X-ray diffraction [54,60] have been successfully used to monitor wood decay.…”

Section: Mechanical Properties Of Wood From Beetle-attacked Treesmentioning

confidence: 99%

What Happens to Wood after a Tree Is Attacked by a Bark Beetle?

Hýsek

Löwe

Turčáni

2021

Forests

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Advancing climate change is affecting the health and vitality of forests in many parts of the world. Europe is currently facing spruce bark beetle outbreaks, which are most often caused by wind disturbances, hot summers, or lack of rainfall and are having a massive economic impact on the forestry sector. The aim of this research article was to summarize current scientific knowledge about the structure and physical and mechanical properties of wood from bark beetle-attacked trees. Spruce stands are attacked by a number of beetles, of which Ips typographus is the most common and widespread in Central Europe. When attacking a tree, bark beetles introduce ophiostomatoid fungi into the tree, which then have a greater effect on the properties of the wood than the beetles themselves. Fungal hyphae grow through the lumina of wood cells and spread between individual cells through pits. Both white rot and brown rot fungi are associated with enzymatic degradation of lignin or holocellulose, which is subsequently reflected in the change of the physical and mechanical properties of wood. Wood-decay fungi that colonize wood after infestation of a tree with bark beetles can cause significant changes in the structure and properties of the wood, and these changes are predominantly negative, in the form of reducing modulus of rupture, modulus of elasticity, discolouration, or, over time, weight loss. In certain specific examples, a reduction in energy consumption for the production of wood particles from beetle-attacked trees, or an increase in surface free energy due to wood infestation by staining fungi in order to achieve better adhesion of paints or glues, can be evaluated positively.

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Section: Mechanical Properties Of Wood From Beetle-attacked Treesmentioning

confidence: 99%

What Happens to Wood after a Tree Is Attacked by a Bark Beetle?

Hýsek

Löwe

Turčáni

2021

Forests

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“…Silica hybrid gels are among the so-called organic modified silica (ORMOSILs). Nowadays, these materials are being used for multiple applications such as the adsorption of metals in water [ 1 , 2 , 3 ], catalyst support [ 4 , 5 , 6 ], support for luminescent compounds [ 7 , 8 , 9 ], anti-corrosive or fungicide coatings [ 10 , 11 , 12 , 13 ], and biomedicine [ 14 , 15 , 16 , 17 , 18 , 19 ]. The key behind the tunability of the properties of these materials is the synergetic effect that generates the coexistence, at a nanometric scale, of an inorganic skeleton with flexible and functional organic constituents [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Novel Silica Hybrid Xerogels Prepared by Co-Condensation of TEOS and ClPhTEOS: A Chemical and Morphological Study

Cruz-Quesada

Espinal‐Viguri²,

López-Ramón³

et al. 2022

Gels

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The search for new materials with improved properties for advanced applications is, nowadays, one of the most relevant and booming fields for scientists due to the environmental and technological needs of our society. Within this demand, hybrid siliceous materials, made out of organic and inorganic species (ORMOSILs), have emerged as an alternative with endless chemical and textural possibilities by incorporating in their structure the properties of inorganic compounds (i.e., mechanical, thermal, and structural stability) in synergy with those of organic compounds (functionality and flexibility), and thus, bestowing the material with unique properties, which allow access to multiple applications. In this work, synthesis using the sol-gel method of a series of new hybrid materials prepared by the co-condensation of tetraethoxysilane (TEOS) and 4-chlorophenyltriethoxysilane (ClPhTEOS) in different molar ratios is described. The aim of the study is not only the preparation of new materials but also their characterization by means of different techniques (FT-IR, 29Si NMR, X-ray Diffraction, and N2/CO2 adsorption, among others) to obtain information on their chemical behavior and porous structure. Understanding how the chemical and textural properties of these materials are modulated with respect to the molar percentage of organic precursor will help to envisage their possible applications: From the most conventional such as catalysis, adsorption, or separation, to the most advanced in nanotechnology such as microelectronics, photoluminescence, non-linear optics, or sensorics.

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