Pultruded TRIGLASS® composite profiles (VTR – GRP – PRFV – CFRP), reinforced with fibreglass and/or carbon, are widely used in cooling tower structures themselves and their fans.
Through its many years of experience, Top Glass has developed the specific know-how to produce even large size blade profiles (over 1.5m of cable) for the construction of industrial fans and now supplies leading operators in the sector.
The excellent characteristics and versatility of TRIGLASS® profiles make them an ideal solution for designers and technicians who recognize the unique advantages of composite materials over traditional ones.
What are the possibilities?
- Fan blades
- Walking surfaces
- Access ladders
- Handrail systems
Our product advantages in this sector: Cooling towers
Composites have an excellent ability to withstand environmental agents and highly aggressive chemicals.
A wide choice of resins allows the design of composites with strong resistance to atmospheric agents and weathering. Rain, particulate abrasion, UV radiation and temperature boundary conditions are easily controlled by means of different formulation strategies and/or surface protection.
The amorphous structure of composites stands up very well in large temperature fluctuations without presenting significant or permanent sectional deformation. The response of the material to applied loads is practically always in terms of elasticity. It has low creep and is consequently very stable.
Predicting the durability of composite materials is a topic Top Glass has studied for a long time. Our findings suggest optimal behaviour in outside conditions and bad weather. Of course, special conditions should be assessed to select the raw materials best suited to maximizing long-term mechanical and aesthetic features.
The specific gravity of pultruded material is about 1.8 g/cm ³. It is much lighter than steel (7.85 g/cm ³) and aluminium (2.7 g/cm ³). Its high performance relative to weight allows the design of structures with low energy impact. Its lightness is also an advantage in relation to transport and logistics as well as low response to inertial forces, relevant to building structures in seismic areas.
Polymeric materials have insulating characteristics, resistance to weathering and chemicals and pigmentation possibilities (en masse) that allow their installation and use with almost zero maintenance.
The mechanical properties of composites are generally high and can be customized to take advantage of the anisotropy of reinforcement structure. The strongest enhancements have been in the longitudinal direction, which coincides with the direction of the pultrusion process. Resistances in that direction are now comparable to those of steel. In the case of unidirectional composites, longitudinal strength values can be triple those of steel. In contrast to traditional metal materials, pultruded profiles reflect behaviour that is elastic-brittle until breaking.
Composites have an excellent ability to withstand environmental agents and highly aggressive chemicals. A wide range of resins makes it possible to design materials adapt for contact with diverse chemicals, especially acids, alkaline substances and solvents.
Main products used in this sector: Cooling towers