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Sistema portátil online para monitorizar el proceso de curado de resina bajo condiciones industriales

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOCZ20170327001
Publicado:
30/03/2017
Caducidad:
28/03/2018
Resumen:
Un centro de investigación checo especializado en ingeniería eléctrica y de materiales ha desarrollado y obtenido la patente de un sistema portátil online para monitorizar el proceso de curado de composites y plásticos bajo condiciones industriales. Este sistema de monitorización de alta sensibilidad está indicado para analizar resinas y composites endurecidos y se basa en un método de espectroscopía de impedancia con frecuencia de medida autoadaptable. El sistema de medida consta de una unidad principal, sensores dieléctricos y sensores de temperatura con resistencia de platino. El centro de investigación busca fabricantes de plásticos y composites con el fin de establecer acuerdos comerciales con asistencia técnica.

Details

Tittle:
Portable online system for resin curing monitoring under industrial conditions
Summary:
A Czech research centre specialised in electrical and material engineering has developed and patented a portable online system for resin curing monitoring of composite and plastic materials under industrial conditions. The monitoring system with high sensitivity of monitoring of resin curing is suitable for the analysis of hard post-cure resins and composites. The university offers commercial agreement with technical assistance to plastics or composites manufacturers.
Description:
An uncured thermosetting resin matrix significantly influences many different composite properties. Therefore, the detection of the uncured thermosetting resin matrix is a necessity of quality control. This matrix can be detected by use of various methods e.g. temperature-modulated differential scanning calorimetry (MDSC), infrared spectroscopy and numerous mechanical methods including dynamic mechanical analysis. These methods are typically used together with pre-production trials on samples cured under various thermal and pressure conditions to determine the optimum cure cycle settings. However, these commonly used methods using robust devices are costly, labor intensive and time-consuming.

The Czech research centre has developed and patented unique portable online measuring system for resin curing monitoring based on impedance spectroscopy method with self-adapting frequency of the measurement . The measuring system is composed of the main measuring unit, in-house-developed dielectric sensors and platinum resistance temperature sensors. The system is capable to change automatically the measurement frequency (in real time) with respect to the actual molecular structure of the thermosetting resin during curing. The gathered impedance data provide on-line information about the curing process and display the actual state of the resin curing process. Therefore, the curing process is controlled and the operators have the information needed to determine when the resin system reaches the point of minimum viscosity, gelation, vitrification and full cure. The special design of the sensors enables to monitor the pure resin of composites (with glass or even with conductive carbon fibers).

The research centre offers the portable on-line system for resin curing monitoring to plastics and composites manufacturers under commercial agreement with technical assistance. The cooperation with potential partner will include prototype device delivery and installation of the custom-made measurement system (sensors designed according to customer needs, additional verification measurement via structural analysis, CT tomography, mechanical testing, consultancy).
Advantages and Innovations:
Compared to commonly used devices for resin curing monitoring, the developed measuring system has following advantages and innovation:

- Significantly higher sensitivity of monitoring of resin curing thanks to self-adapting frequency of the system.
- Smaller dimensions (150 x 60 x40 mm) - the system is portable.
- The system is suitable for the analysis of hard post-cure resins and composites.
Stage of Development:
Field tested/evaluated
IPs:
Secret Know-how,Patents granted,Other
CommeR Statunts Regarding IPR Status:
Czech patent, Czech utility model

Partner sought

Type and Role of Partner Sought:
Type of partner sought: Plastics and composites manufacturers.

Role of partner sought: To use the measuring system during resin curing.

The Czech research centre will deliver prototype device and install the custom-made measurement system (sensors designed according to customer needs, additional verification measurement via structural analysis, CT tomography, mechanical testing, consultancy).

Client

Type and Size of Client:
R&D Institution
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English

Keywords

Technology Keywords:
02007005 Composite materials
02007014 Plastics, Polymers
09003 Sistemas electrónicos de medida