Laminated composite based on polyester geotextile fibers and polyurethane resin for coating wood structures

Assagra, Y. A. O.; Altafim, Ruy Alberto Pisani; Silva, José Francisco Resende da; Basso, Heitor Cury; Lahr, Francisco Antônio Rocco; Altafim, Ruy Alberto Corrêa

doi:10.1590/s1516-14392013005000100

Cited by 2 publications

(3 citation statements)

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“…Wood is a renewable material with physical-mechanical properties that allow its use in various purposes, such as construction, the furniture industry, energy production, paper and pulp. In addition, it has a strong ecological appeal, if proper management is employed in plantation zones 1,2 . Besides, wood presents advantages when compared to other building materials, such as concrete and steel.…”

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confidence: 99%

Influence of treatment with water-soluble CCB preservative on the physical-mechanical properties of brazilian tropical timber

et al. 2019

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This aim of this work is to present an analysis of the influence of impregnation against biological demand, realized with saline solution of CCB (Chromated Copper Borate preservative) by vacuumpressure process, on physical-mechanical properties of tropical wood species Simarouba sp., Cedrelinga catenaeformis and Erisma uncinatum Warm. In theory, such process could increase the number of surface defects in wood pieces and reduce its strength properties. To investigate this influence, the complete species characterization was carried out in two conditions (without treatment and CCB treated wood). Tukey's multiple comparisons test (5% significance level) was applied. In addition, scanning electron microscopy (SEM) photomicrographs were obtained with the energy dispersive spectroscopy (EDS) to investigate preservative presence at the cellular level. Results permitted to conclude that CCB impregnation process did not affect physical-mechanical properties of the studied species.

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Section: Introductionmentioning

confidence: 99%

Influence of treatment with water-soluble CCB preservative on the physical-mechanical properties of brazilian tropical timber

et al. 2019

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“…19,20 Basalt is a natural origin fiber with promising environmental friendliness. This study is based on novel hybrid woven fabrics of basalt with other thermoplastic and thermoset yarns.…”

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“…The use of hybrid woven structures improves the overall property of fabric by combining positive aspects of dissimilar fiber components, thus making it more functional than the individual fiber. 19,20 Basalt is a natural origin fiber with promising environmental friendliness. This study is based on novel hybrid woven fabrics of basalt with other thermoplastic and thermoset yarns.…”

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Investigation of electrical properties of basalt and its hybrid structures

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Mishra

Tunáková

et al. 2016

Textile Research Journal

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With the use of new materials for technical textile applications, evaluation of electrical properties in accordance with the intended application is required. In this study, experimental investigations are carried out to check the electrical behavior of hybrid and non-hybrid woven structures of basalt/polypropylene, basalt/polyester, and basalt/jute fibers. Three types of weaves were used for both hybrid and non-hybrid structures. These textile fabrics were evaluated by methods of measuring surface resistance and the volume resistance. Results are discussed in terms of fiber composition and woven structure. The aim is to compare different structures on the basis of electrical properties. The purpose of this study is to identify parameters that have the strongest influence on electrical properties of fabrics.Textiles are so important in our lives that we cannot think of living without them. They not only provide us with protection against environmental changes, alongside aesthetic appeal, but recent technological advancements have also allowed the extension of utilities beyond traditional functionality of textiles. As polymeric materials have developed, their excellent, and sometimes outstanding, dielectric properties have guaranteed their use on a broader spectrum as insulators in electrical and electronic engineering. These materials have played an important role in the evolution of electrical components and equipments. Most electrical properties are determined largely by primary chemical structure, and are relatively insensitive to microstructure. In consequence the electrical behavior of polymers is generally less variable in comparison to the mechanical behavior. 1-3 The arrangement of fibers and yarns in textiles makes them, in the majority of cases, nonhomogeneous and anisotropic products, hence the behavior of textile materials as dielectrics depends on the dielectric behavior of the fibers and also on the fiber forming polymers. In general, the polymers can be produced in the form of isotropic or anisotropic sheets; the measurement of dielectric properties thus becomes relatively easier. This is not always true for textile materials. 4-7 The electrical conductivity of most of these polymers is so low that they are generally considered as insulators.Conventional synthetic fibers have a specific electrical resistance q v ¼ 10 10 -10 12 V m. Electrically conductive fibers have a specific electrical resistance of about q v ¼ 10 À7 V m. 8-10 Non-metallic textile materials located in an electric field behave as insulators.The measurement and understanding of electrical resistance of textile material is complex in nature. For textile material: (1) uniform cross-section is not achievable and is impractical; (2) it can absorb or release moisture in the atmosphere; and (3) its structural uniformity depends on the processing parameters. It is expected that the electrical resistance of textile materials depends on the raw material, from which it has been manufactured. It also depends on the geometrical dimensions of ...

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Laminated composite based on polyester geotextile fibers and polyurethane resin for coating wood structures

Cited by 2 publications

References 10 publications

Influence of treatment with water-soluble CCB preservative on the physical-mechanical properties of brazilian tropical timber

Influence of treatment with water-soluble CCB preservative on the physical-mechanical properties of brazilian tropical timber

Investigation of electrical properties of basalt and its hybrid structures

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