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.
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.
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.
Rubber is a living material. During mechanical loading, rubber changes its mechanical behavior due to inner structural changes on the molecular scale. Learn in the video how the dynamic mechanical and dielectric properties of carbon black-filled rubber compounds can be analyzed.
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.
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.
In the previous articles, focusing on thermal analysis under humidity, we have seen that thermogravimetric analysis and dynamic mechanical analysis help determine the influence of water on a material or substance. Thermomechanical analysis complements the analysis under humidity.
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?
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.
Thermoplastic parts can fail. This is no secret. However, when it has happened it is crucial to find out the reason for the failure of a part. Here is a short list of thermal analysis techniques and which questions they can answer in your failure analysis.