Armerad plast

Ämnesområden: Armerad plast
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 22 aug 2019
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This International Standard specifies an accelerated moisture absorption properties and supersaturated conditioning by moisture for carbon fibre-reinforced plastics (CFRP) or carbon fibre-reinforced thermoplastics (CFRTP) using sealed pressure vessel at higher temperature than 100 °C with saturated water vapor at used heating temperature.

This moisture absorbing procedure is for the purpose of screening test samples with moisture by mechanical or thermal properties.

This standard applies CFRP or CFRTP materials and their products.

Ämnesområden: Armerad plast
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 22 aug 2019
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This International Standard specifies a method, based upon linear elastic fracture mechanics (LEFM), for the determination of the interfacial fracture toughness of bonded plates with metal and carbon fiber reinforced plastics (CFRP) under an applied mode I opening load, using double cantilever beam (DCB) specimens.

Ämnesområden: Armerad plast
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: ISO
Svarsdatum: den 1 sep 2019
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This standard specifies a thermogravimetric method for the determination of fibre weight content of carbon fibre reinforced composites.

This method applies to pre-products, such as, prepregs, parts and products of carbon fibre reinforced composites.

Ämnesområden: Armerad plast
Kommittébeteckning: SIS/TK 156 (Plast)
Källa: CEN
Svarsdatum: den 19 sep 2019
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This International Standard specifies a method for the determination of the mass per unit area and five methods (Method A to Method E) for the determination of the fibre mass per unit area of moulding compounds and prepregs.

Method A: Extraction by soxhlet

Method B: Extraction by immersion in solvent in a beaker

Method C: Decomposition by loss ignition

Method D: Extraction by wet combustion

Method E: Method by calculation

This International Standard is applicable to the following types of material:

— moulding compound and preimpregnated unidirectional sheet, tape, fabric and mats.

— prepregs in which any type of reinforcement (aramid, carbon, glass, etc.) and any type of matrix (thermosetting or thermoplastic) has been used.

Typically, reinforcement fibres are coated with sizing or finishes. These normally dissolve with the resin and are, therefore, included in the resin content.

This International Standard is not applicable to the following types of prepregs:

— these containing reinforcements which are soluble (or partly soluble) in the solvents used to dissolve the resin.