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Sistema de adhesión bioinspirado para aprestos de fibra de vidrio utilizando catecoles

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TODE20150812005
Publicado:
18/08/2015
Caducidad:
17/08/2016
Resumen:
Un instituto de investigación alemán especializado en tejidos ha desarrollado un sistema de adhesión bioinspirado para aprestos de fibra de vidrio mediante la síntesis e integración de catecoles. El concepto se inspira en una técnica natural empleada por los mejillones, que utilizan catecoles en su hábitat marino para inmovilizar diferentes tipos de materiales. Las ventajas incluyen mayor aplicabilidad en diferentes matrices y mejor agarre en condiciones de oxidación. Se buscan socios industriales y académicos que utilicen estructuras ligeras, como sectores de automoción y espacial, con el fin de establecer acuerdos de cooperación técnica.


Details

Tittle:
Bioinspired adhesion system for glass fiber sizings using catechols
Summary:
A German research institute active in the field of textiles has developed a bioinspired adhesion system for glass fiber sizings by synthesizing and integrating catechol polymers. Advantages include the improved applicability to different matrices and an improved grip also under oxidative conditions. Partners from industrial sectors or academia using lightweight structures such as automotive or space are sought for technical cooperation agreements.
Description:
Fiber reinforced plastics are the basis for numerous light weight applications. They are composed of a polymer matrix, which strengthens the fibers. Glass fibers are used as a reinforcement structure in 95 % of all fiber reinforced plastics. A glass fiber sizing is used to ensure the adhesion of the matrix to the fiber in order to transfer the reinforcement effect of the fiber to the material or to lower the friction resistance. However, conventional sizings require an individual adjustment of the sizing to the matrix system which is time and cost consuming. Moreover, often unsuitable fiber-sizing-matrix combinations are used.
The German research institute has developed a multifunctional, bioinspired sizing system which permits the use of different thermoplastic matrices. The developed technology is scalable and based upon high molecular, tailormade sizings with the integration of cathechol groups.
Catechols and functional polmers linked to catechol units replace monomer aminosilanes. The concept is inspired by a natural technique used by mussels which use catechols in their marine habitat to immobilize different types of materials, among others also for oxydic surfaces like in glass fibers. Catechols are marked by their high bond strength and their improved adhesion capability in wet conditions (for instance to thermoplastics of carbon fibers).
Research results include the creation of a spinning facility for glass fibers, the synthesis of new bioinspired sizings with an improved grip and an identification of their tribological characteristics, the successful use of sizings in the spinning process and the manufacture of a textile surface which are turned into glas fiber reinforced components.

The German research institute is looking for industrial partners from sectors using leightweight structures for technical cooperation agreements. The developed technology can be applied in sectors such as automotive, space or others. Also academic partners with experience in adhesion technology or surface treatment are welcome for technological agreements to further improve the technology.


Advantages and Innovations:
- Adhesion improved by 22%
- Cost reduction along the value chain
- More resource-efficient use of materials
- Higher absorption capability of catechol-modified polymers
- Thicker and more homogenous coating than with aminosilanes
- Power transmission is twice as high as with aminosilan
- Component strength 2.54 MPs compared to 2.08 MPa with conventional solutions
- Improved processing Features

Stage of Development:
Prototype available for demonstration
IPs:
Secret know-how

Partner sought

Type and Role of Partner Sought:
- Type of partner sought: Industrial partners from sectors using leightweight structures such as automotive or space to integrate the technology; academic partners to further improve the technology

- Specific area of activity of the partner: adhesion technology or surface treatment, industrial application of lightweight technologies

- Task to be performed by the partner sought: integration of the developed technology into the production process or joint improvement of the technology

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
German

Keywords

Technology Keywords:
02007007 Cristal
02007019 Lightweight materials
02007014 Plastics, Polymers
02002015 Surface treatment (painting, galvano, polishing, CVD, ..)
03005009 Tejidos técnicos para aplicaciones industriales