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Heatproof fibre reinforced composites

The aim is to develop new types of polymer composites able to face high temperatures (200-400 degrees celsius), fire (class a1 or a2) and seismicity, for adoption in strucutral engineering.

Designers and users of various structural facilities intensively search for materials able to face all harsh or extraordinary behaviour conditions (aggressive chemical environment, heat, vibrations) and having low operational costs (the material should not be equipped with paints and should have long durability). They are interested in obtaining material that is light, easy to transport, easily produced, has a high level of durability and is able to face oxidation. The material should have knowledge-based properties and meet the given requirements. Such materials are composites based on the organic polymer matrix and reinforced by various fibres or grids with high temperature and stiffness stabilities. However the polymer matrix of commonly produced composite materials is based on non-saturated polyester resins or epoxid resins. These resist chemical substances such as acids, oxides and salts, and are light (their density is less than a quarter when compared with their steel equivalents). Due to variability of configuring reinforcing fibres, their mechanical parameters can be identified. They do not require maintenance. Such materials, however, lose their mechanical stiffness at low temperatures. By adopting polyester resins, the structure may collapse due to the influence of the dead-weight at temperatures around 100 degrees Celsius! In the production catalogues of polymer materials, the matrices suitable for higher temperatures may be found, however, their price is distinctly higher compared with non-saturated polyester resins and they are not suitable for continual production technologies such as is the pultrusion. Therefore, the project proposed is focused on the development of the material being acceptable due to the costs and capacity to be adopted for structural applications. The project will be not oriented towards the replacement of one polymer matrix by another one. Due to the absence of the polymer matrix, modification to the available materials will be made in order to obtain the required properties and to have the matrix suitable for commonly used technologies for producing composites. Special attention will be paid to pultrusion, which is the top technology in the above branch. The result will also see the development of technology for producing pultrusion composites. Because a new material is being dealt with, its basic characteristics, properties and behaviour under tough operating conditions are to be identified. Behaviour at high temperatures, in case of fire, is to be addressed while the chemical reliability and stability of the new material proposed is to be determined. On the basis of such materials, standards for structural applications will be developed. The project result will be the production of new structures from the material proposed. Such structures will be subjected to final assessments and final testing before introduction into series production. There should also be pilot studies for assessing the material behaviour at temperatures higher than 400 degrees Celsius in oxide atmospheres or in an environment of inert gas. Keywords: composites, heatproof, polymeric.
Acronym: 
ALLPROOF FRC
Project ID: 
3 659
Start date: 
01-03-2006
Project Duration: 
46months
Project costs: 
1 260 000.00€
Technological Area: 
Composite materials
Market Area: 
Construction

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