| 摘要 |
PURPOSE:A composition providing a resin magnet having high fluidity, improved molding properties and mechanical properties, obtained by blending a polyamide copolymer containing laurolactam, etc. with a plasticizer and a stabilizer to give a blend, mixing the blend with magnetic material powder. CONSTITUTION:5-30wt% polyamide resin composition consisting of 100pts.wt. comprising a polyamide copolymer containing 10-98wt%, preferably 70-95wt% laurolactam, 12-omegaaminododecanoic acid and/or 11-omegaaminoundecanoic acid, having 1.20-1.80, preferably 1.30-1.60 relative viscosity, 1-30pts.wt. plasticizer, and 0.1-2.0pts.wt. stabilizer is blended with 95-70wt% magnetic material powder. A sulfonamide or an oxybenzoic ester is preferable as the plasticizer. Magnetic material powder having 0.5-10mu, preferably 1-5mu, is used as the magnetic material powder. |
