HDT Test on Resins and Composite with Resin Matrix
One of the main and important application for all resins, and composite with a resin matrix, is in the nautical field. These particular materials are widely used for the building of hulls and products destined to permanent water contact, competition boats, surf-boards etc. Nautical sector requires products characterized by excellent mechanical and thermal resistance, high surface finish, water resistance, for the realization of structural elements of boats subject to strong stress.
An easier way to investigate the properties of a resin or a composite based on resin matrix, is to perform Heat Deflection Temperature (HDT) tests. This kind of analysis is particularly useful in these applications because the matrix maintains its mechanical characteristics up to the HDT value, then it assumes a plastic behavior. If the temperature will grown more than HDT value, permanent deformation will be reported generating surface defections. On the other hand, the higher is the HDT value, the higher will be the application area of the product.
For all these reasons, it is immediately clear why is extremely important well understand and to know the HDT characteristic of each resin and composite.
The tests are commonly carried out according to ISO 75 or ASTM D648 standards. In many cases, according to different certifications, producers must guarantee that the resin is able to reach an HDT value higher than 60°C, in order to use their material for nautical constructions.
To meet the requirements for this application, we recommend our HV Series, in either the manual or semi-automatic version. Three or six stations machine are available to satisfy all the test needing.
For any further detail about test set-up, procedure and results, please refer to the standard documents available from the links below.
CEAST HDT Vicat Series 3 and 6 Stations Testers
The effect of temperature on the mechanical properties of plastic materials has a fundamental role in the design of components, especially in the selection of materials. Unlike metals and ceramics, plastics are extremely sensitive to the slightest changes in temperature. The selection of plastics for applications under different temperatures is a complex task. The material must be able to support a stress under operating conditions without losing its strength and without critical distortion. The effect of temperature on geometrical stability and mechanical properties in general can be studied following different procedures and methods like at constant temperature or with a temperature ramp.
- Products
- 6/19/2012
- 1.2 MB
Instron HV Series for HDT and Vicat Testing
The effect of temperature on the mechanical properties of plastic materials has a fundamental role in the design of components, especially in the selection of materials. Unlike metals and ceramics, plastics are extremely sensitive to the slightest changes in temperature. The selection of plastics for applications under different temperatures is a complex task. The material must be able to support a stress under operating conditions without losing its strength and without critical distortion. The effect of temperature on geometrical stability and mechanical properties in general can be studied following different procedures and methods like at constant temperature or with a temperature ramp.
- Products
- 6/21/2018
- 1.2 MB