Popular materials for lightweight applications are glass and carbon fiber-reinforced plastics. The properties of the composite material are determined by the manufacturing process conditions. Therefore, it is crucial to know the curing state reached during manufacturing as well as the correlation between the glass transition temperature and degree of cure.
Fiber-reinforced composite materials, which combine the properties of fibers and a polymer matrix, have been around for decades. There are different ways to incorporate the fiber into the thermoplastic matrix ‒ randomly oriented fibers, unidirectional continuous fibers or multi-directional fabric. The orientation of the added fibers plays an important part when it comes to part properties. Learn why anisotropic behavior of the composite is favorable and how to measure it with the TMA 402 F3 Hyperion® Polymer Edition.
The collaboration with many different companies and institutes reached a new climax this week. With its collaboration partners, NETZSCH Analyzing & Testing has organized the second composites seminar in Spain.
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.
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.
NETZSCH Analyzing&Testing Supports the 11th Asian-Australasian Conference on Composite Materials in Cairns for the Scientific Promotion of Young Scientists.
By reason of the high material costs, process automation in composites manufacturing is one of the core themes of the fourth industrial revolution.