Plastics. Reinforced moulding compounds and prepregs. Determination of apparent volatile-matter content
Plastics. Reinforced moulding compounds and prepregs. Determination of apparent volatile-matter content
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1 Scope This document specifies a method for the determination of the apparent volatile-matter content in pre-impregnated yarns, tapes, mats (SMC) and fabrics. The method is applicable to all unidirectional and multidirectional fibre-reinforced prepregs and all thermosetting-resin matrices, unless otherwise specified in product specifications. The method does not apply to unimpregnated reinforcement fibres. NOTE For products with a polyester-resin matrix (UP), the result will be lower than the real value.
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