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Light nylon 6.6 based cloth for aviation safety systems

The goal of the project is to develop and certify light cloth for aviation safety systems.

The goal of the project is to develop new polyamide based cloth aimed at aviation life saving systems, often called ballistic systems with high technical values - low porosity, 25 grams per square meter. Nowadays, the typical certified aviation material is based on polyamide (PA), nylon 6.6, 33 dTex, 12-17 filaments. (Polyamide yarn with internal structure of 12 to 17 filaments.) Material using the yarns specified above will result in the cloth of 33-35 grams per square meter. Further processes (dying in jigger or autoclave) and calendaring are used to avoid any chemical treatment (not possible for aviation) and treat the material mechanically. The idea of the material (low porosity, light structure) is based on new yarn structures that started to be available on the market only recently (introduced for the first time in Autumn 2015). The modern yarns can reach the same tenacity using 20-22 dTex yarns and using more filaments than traditional 33dTex yarns. Typical, new generation high tenacity yarn will consist of 17 filaments and will have only 22 dTex. The core of the research is to use the new yarns and exploit the potential of the modern chemical industry and technologies of yarn makers to reach state of the arts values in the final weaved cloth, i.e. very light materials which can have the same tenacity as traditional 33 dTex yarn based material. Part of the new research must also be the new weaving pattern and and manufacturing technologies (weaving, picks, density, patterns, calendaring). New procedures and modified technologies have to be used to reach the low porosity. Therefore the new procedures in the traditional calendering must also be developed. The goals and steps of the project could be defined as follows: • analyse the present PA nylon 6.6 yarns and analyse the structure of filaments, • develop a new weaving patterns to reach adequate internal strength and structural integrity of the cloth, • develop new weaving techniques to reach the same values but with minimum weight and maximum porosity, • develop the techniques to calender the cloth. The success markers could be defined as follows: • new material is developed and reached the hypothetical values (25 grams per square meter), • new procedures are developed to weave the material in regular, efficient, industrial way, • new procedure for calendering are developed to reach minimum porosity, • the material is certified and assessed by an independent laboratory. To conclude, the result of the product should be: • new material based on PA, nylon 6.6, 25 grams per square meter, low porosity, fully certified.
Acronym: 
RS2527
Project ID: 
11 713
Start date: 
01-10-2017
Project Duration: 
36months
Project costs: 
590 000.00€
Technological Area: 
Plastics, Polymers
Market Area: 

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.