Filament strand integrity

Filament strand integrity The degree to which the individual filaments making a strand or end are held together by the applied sizing. 

To cater for the variety of composite fabrication techniques, fibres may be formed into woven rovings, knitted preforms or continuous random mats (CRM) or chopped into lengths of >20 mm to <5 mm for use in moulding compounds or assembling into chopped strand mat (CSM). For these textile processes, the polymeric component of the size is required to maintain strand integrity and filament strength. The random continuous and chopped strand mats require additional polymeric binders. 

Strand Integrity. The degree of bonding between the filaments in the individual strands (ends)... 

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