Conservation of cultural heritage - Surface protection for porous inorganic materials - Technical and chemical data sheets of water repellent product

2018 ◽  
Keyword(s):  
Cultural Heritage ◽  
Inorganic Materials ◽  
Chemical Data ◽  
Water Repellent ◽  
Surface Protection

scholarly journals The activity of CEN TC 346-Conservation of Cultural Heritage

2013 ◽  
Vol 5 ◽  
pp. 8-26
Author(s):  
Vasco Fassina
Keyword(s):  
Cultural Heritage ◽  
Test Methods ◽  
Inorganic Materials ◽  
Cultural Property ◽  
Water Repellent ◽  
Preventive Conservation ◽  
Surface Protection ◽  
Outdoor Climate ◽  
Scientific Approach ◽  
And Control

A specific European standardisation activity in the field of conservation of cultural heritage is essential to acquire a common unified scientific approach to the problems relevant to the preservation and conservation of the cultural property. The scope of CEN TC 346 is to establish standards in the field of the processes, practices, methodologies and documentation of conservation of tangible cultural heritage to support its preservation, protection and maintenance and to enhance its significance. This includes standardisation on the characterisation of deterioration processes and environmental conditions for cultural heritage and the products and technologies used for the planning and execution of conservation, restoration, repair and maintenance.  Up to now sixteen EN standards were published according to a matrix-based method in which three main topics have been developed. First is dealing with general guidelines and methodology. Second topic is regarding Evaluation of methods and products for conservation works. The work was focused on a general draft “Surface protection for porous inorganic materials-laboratory test methods for the evaluation of the performance of water repellent products”. The evaluation is based on the measurements of different parameters appropriate to assess the performance of the product using standardized and reproducible methods. Third topic is regarding Indoor/outdoor climate-Specifications and measurement. The purpose of the work was to develop standards and recommendations relating specifically to the climate and its influence on the preservation of heritage. Standards developed will assist professionals involved in environmental diagnostics and in the investigation and control of the climate for preventive conservation and maintenance. The assistance includes the choice of methodologies and instruments and the interpretation of results.

Performance of wood treated with prospective organic surface protectants upon outdoor exposure: FTIR spectroscopic analysis of weathered surfaces

Holzforschung ◽  
2013 ◽  
Vol 67 (2) ◽  
pp. 227-235 ◽  
Author(s):  
Christoph F. Schauwecker ◽  
Armando G. McDonald ◽  
Jeff J. Morrell
Keyword(s):  
Pinus Taeda ◽  
Loblolly Pine ◽  
Lignin Degradation ◽  
Structural Integrity ◽  
Uv Light ◽  
Outdoor Exposure ◽  
Water Repellent ◽  
Surface Protection ◽  
Alternative Materials ◽  
Lignin Depolymerization

Abstract Visual appeal of wood is as important as its structural integrity in outdoor applications. Discoloration and checking of wood favor the utilization of alternative materials for outdoor cladding and decking. Lignin depolymerization is one of the critical processes leading to weathering. In the present paper, the potential of different classes of surface protection agents has been assessed on loblolly pine (Pinus taeda) impregnated with water repellents, organic UV inhibitors, and an organic biocide. The treated samples were exposed to predetermined doses of solar radiation in Eastern Oregon, and the chemical changes occurring on the surfaces were evaluated by FTIR spectroscopy. After 1-year exposure, lignin loss was complete on all surfaces; however, some treatments provided longer term protection than others. Organic UV light inhibitors were most effective in this regard. A petroleum-based water repellent with a melting point of 54–58°C also provided protection against lignin degradation.

scholarly journals Superhydrophobic surfaces

2012 ◽  
Vol 21 (1-2) ◽  
pp. 21-32 ◽  
Author(s):  
Ioannis Karapanagiotis ◽  
Panagiotis Manoudis
Keyword(s):  
Water Repellency ◽  
Superhydrophobic Surfaces ◽  
Water Repellent ◽  
Baxter Equation ◽  
Feature Article ◽  
Surface Protection ◽  
Recent Developments ◽  
Potential Applications ◽  
Nanoparticle Composites ◽  
Potential Use

AbstractSuperhydrophobicity – also known as water repellency – has recently attracted considerable attention because of its numerous potential applications. However, the fundamental concepts and equations describing the wettability of superhydrophobic surfaces have been known since the 1940s. These concepts are reviewed and discussed in the present feature article in light of the recent developments. Furthermore, the potential use of water-repellent siloxane-nanoparticle composites for surface protection and consolidation of stones and mortars used in outdoor objects of cultural heritage is investigated. Finally, it is shown that the wettability of the composite surfaces can be predicted by the Cassie-Baxter equation.

scholarly journals CONSERVATION ETHICS AND PRINCIBLES OF ARCHAEOLOGICAL TEXTILE

2021 ◽  
Vol 10 (78) ◽  
Keyword(s):  
Cultural Heritage ◽  
Urban Areas ◽  
Technology Development ◽  
Inorganic Materials ◽  
Next Generation ◽  
Academic Field ◽  
Religious Traditions ◽  
Textile Conservation ◽  
Analytical Research ◽  
Definition Of

Textiles made of organic fibers, include anthropologic knowledge about lifestyle, art idea, mythology, daily life and religious traditions of the culture made them. These tangible examples of Cultural identity of the society important for transfer traditional knowledge from next generation. Textile Cultural artefacts responsibility and interest of conservation and restoration science professionals can find from archaeological excavations or gathering from urban areas and given to museums from collectors. Historic textiles are hard to found well preserved and hard to passing it onto the next generation compared to artefacts made from inorganic materials because of they made of organic materials. Every country on the earth has their own definition of Cultural Heritage and preservation laws. Under this diversity in the field of conservation and restoration science, it is necessary to establish standard definitions and use a common language at academic field likewise in every profession. Ethical codes and principles made for conservation of Cultural Heritage are a guide for conservation professionals. Politics of conservation practices change by technology development. In recent years, by analytical research, has been noticed that active conservation activities can damage the cultural heritage hence passive conservation activities like documentation and preservative conservation becomes priority. Descriptive scanning model based on screening of literature related to textile conservation was adopted for this paper. Keywords: Cultural heritage, archaeological textile, conservation, restoration, ethics

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