How to use TGA for the quality control of carbon fiber-reinforced polymers

CFRP_TGA_quality control_netzsch

The determination of fiber volume fraction is crucial for the quality control of carbon fiber-reinforced polymers (CFRP) in order to ensure their favorable mechanical and physical properties for the use in aerospace, wind energy and automotive sectors. A new thermogravimetric testing method, published by Dominik Grund in the journal “Polymer Testing”, considers heating rate, analysis atmosphere and sample size to efficiently ensure high quality of the material. This editorial summarizes the steps for the use of TGA in the quality control of carbon fiber-reinforced polymers.

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Optimize the Curing of Composites with Kinetics Neo

BLACKS Composites SRL and NETZSCH Analyzing & Testing made the next milestone in its already proven Partnership: Improving the curing of a CFRP bike rim with a simultaneous drastic reduction of the cycle time during cross-linkage. The bike rim was processed through hand lay-up technology and a subsequent autoclave curing. Saving cycle time with a better curing is not possible? It is! Based on the data of a differential scanning calorimeter and the simulation software Kinetics Neo, the cycle time was reduced by 46% compared to the cure cycle suggested by the material data sheet. Additionally, a higher degree of cure could be achieved to meet the target curing and avoiding overheating effects of the product.

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