Resin composition applicable to laser welding and with high metal texture and preparation method thereof

• Main Authors: LI ZHIBING, GU DAN, CHEN ZHAOYU, FAN YIJUN, WEN ZHENXI, WU SURONG
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2019
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention relates to the field of automotive materials, in particular to a resin composition applicable to laser welding and with high metal texture and a preparation method thereof. The resin composition comprises, by weight, 100 parts of matrix resin, 0.05-5.0 parts of laser powder, 0.1-5.0 parts of metal pigment, 0.05-5.0 parts of pigment additive and 0.1-1.0 part of antioxidant. The preparation method includes: sufficiently mixing the matrix resin, the laser powder, the metal pigment, the pigment additive and the antioxidant in a low-speed mixer, feeding into a double-screw extruder through a metering device, performing screw conveying, shearing and mixing to allowing the materials to sufficiently melt and mix, and performing extrusion, drawing, cooling and grain-sized dicing to obtain the resin composition applicable to laser welding. The prepared resin composition with high metal texture can have excellent laser welding performance. 本发明涉及车用材料领域，具体涉及一种可激光焊接、具有高金属质感的树脂组合物及其制备方法。本发明提包含以下重量份组分：基体树脂100、激