Combinations of polyolefin filaments and yarns of low wetting and adhesive power and filaments and yarns of high wetting and adhesive power

摘要

The invention relates to combinations of poly­olefin filaments and yarns having high tensile strengths and moduli and low wetting and adhesive power in partic­ular in respect of customary matrix materials as used for producing composite articles, and filaments and yarns of good wetting and adhesive power. These combinations combine to good tensile strength and modulus values of polyolefin filaments and yarns with high wettability by and adhesion to customary polymer matrix materials, the wetting and adhesive power being obtainable in a more economical manner than with the previously disclosed coating with coatings which enhance the wetting and adhesive power or with a corona or plasma treatment or a mechanical and/or chemical roughening, which pre­treatments also had the effect of impairing the tensile strengths.