ACOUSTIC EMISSION REDUCTION OF COMPOSITES CONTAINING SEMI-AROMATIC POLYAMIDES

The present invention relates to a composite structure having a surface, which surface has at least a portion made of a surface resin composition, and comprising a woven glass fiber fabric, said woven glass fiber fabric being fully impregnated with a matrix resin composition, wherein a. the matrix r...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WAKEMAN MARTYN DOUGLAS, YUAN SHENGMEI, SAUER BRYAN BENEDICT
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR GENERAL PROCESSES OF COMPOUNDING LAUNDERING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS WORKING-UP
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Beschreibung
Zusammenfassung:	The present invention relates to a composite structure having a surface, which surface has at least a portion made of a surface resin composition, and comprising a woven glass fiber fabric, said woven glass fiber fabric being fully impregnated with a matrix resin composition, wherein a. the matrix resin composition comprises a blend of PA6T/DT and PA66/6T, preferably with a weight ratio between from about 30:70 to about 70:30, more preferably with a weight ratio of about 50:50 b. the surface resin composition is independently selected from an amorphous polyamide composition comprising PA6I/6T or a polyamide composition comprising a blend of PA66 and PA6, preferably the weight ratio of PA66 and PA6 in the blend of the surface resin composition is of between 100:0 to 50:50, more preferably 75:25 and wherein c. the woven glass fiber fabric has a basis weight of between 280 to 320 g/m2 d. the coverage of the woven glass fiber fabric is of between 95% to 100%.