Estimating Residual Stresses in SLS Parts Using DMA

SLS Residual Stress DMA NETZSCH

Selective Laser Sintering (SLS) is one of the most used Additive Manufacturing technologies to produce structural plastic parts. When operated at elevated temperature, any residual stresses could be detrimental for the part performance. In order to better understand residual stresses, knowledge of a material’s modulus is needed. Learn more about residual stress and how to measure the material property using a thermal analysis method.

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Überwachung elastomerer Werkstoffe in der Anwendung zur Ermittlung der Materialversagensgrenze

NETZSCH_Elastomer_Seal_Diplexor

Das geforderte mechanische und dielektrische Eigenschaftsprofil von Elastomerwerkstoffen wird durch die Auswahl des geeigneten Polymers, Füllstoffs und der Additive für den Anwendungsbereich erreicht. Während ihrer Lebensdauer unterliegen elastomere Werkstoffe in Reifen-, Dichtungs- und Automobilanwendungen einer ständigen Veränderung. Lesen Sie mehr über die Möglichkeit zur Überwachung der mechanischen Eigenschaften von Elastomerwerkstoffe während der Anwendung.

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Monitoring Mechanical Properties of Elastomeric Materials During Application

NETZSCH_Elastomer_Seal_Diplexor

The required mechanical and dielectric property profile of elastomeric materials is achieved by selecting the suitable polymer, filler and additives for the application field. During their service life, elastomeric materials in tire, sealing and automotive applications undergo constant change. Read more about the cost-effective way to monitor the mechanical properties of the elastomeric materials during application.

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Investigating phase separation in elastomer-toughened adhesives with DMA

NETZSCH_DMA_elastomer toughened adhesive

Many of the polymers that are used in adhesives are relatively brittle materials. To improve their toughness, different fillers or toughening agents are incorporated in the adhesive formulations. Phase separation occurs during the process of monomer conversion to polymer. An understanding of the phase separation behavior under different curing conditions and the development of the morphology are important. This editorial summarizes the application of the DMA in the investigation of thermal properties and phase separation in elastomer-toughened ethyl cyanoacrylate adhesive bulk films.

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Measuring Viscoelastic Properties of Fiber-Reinforced Epoxy

When it comes to the characterization of fiber reinforced composites with dynamic measuring techniques many options are available, but they all have pros and cons for different materials and applications. In their paper, Huayamares et al. set out to answer some relevant questions by comparing measurements in 3-point bending and torsion mode. We summarize the main findings of the scientific paper and explain the measurements as well as the corresponding interpretation of the results depending on the use case.

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How Water Influences the Mechanical Properties of Polymers

Why is water a problem for a part made of thermoplastics? Textbooks describe that the water uptake for some types of polyamide (PA) is really high in both 50% relative humidity and in water. This alone would not be the problem, but the uptake of water leads to very different properties of materials. How can dynamic mechanical analysis (DMA) help with this issue?

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Tire Technology Expo 2020: Efficiency, Optimizing Processes and Eco-Design

NETZSCH_Tire Tech_Rubber

As a leading international platform, Tire Technology Expo 2020 featured the latest product launches and innovations from national and international exhibitors and a number of interesting presentations. Quality assurance and environmental compatibility of raw materials, intermediates and end products remain essential in all phases of this process to reach the next milestone for sustainable growth. 

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