Powders:
- Thermoplastic : low cost (PP, PA, PES, CBT…) or high performance resin (PEEK, PPS, PEI….).
- Thermoset: polyimide, epoxy, polyester, vinylester, phenolic….
And also
- Functional powders of different kinds such as: fire retardant, intumescent, microsphere….
Advantages of such impregnation process:
- Flexibility of the process
- Properties can be easily adjusted
- Dry process without solvent
- Homogeneity of impregnation
- Possibility of high thickness impregnation in one step (avoid superposition)
Properties:
Properties are adjusted through raw material nature and content of powder versus basalt.
Two main kinds of materials:
- Resin matrix - high content of resin: composite with high mechanical properties (stiffness, strength, impact energy…)
- resin binding - low content of resin: chemical bonded glass preforms ready for resin impregnation
Basalt fibres compared to glass fibres have among others:
- Good thermal properties (thermal, flame resistance and thermal insulation)
- Good electrical properties (high resistivity)
- better alcali resistance
Applications
Structural composite materials for different applications:
- automotive and transportation
- nautism
- pipes
- building
- Industry…..
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