White laser labeled glass fiber reinforced nylon 6 composite material and preparation method thereof

Abstract

The invention discloses a white laser labeled glass fiber reinforced nylon 6 composite material and a preparation method thereof. The composite material comprises the following components in percentage by weight: 50 to 88 percent of nylon 6 resin, 10 to 45 percent of glass fiber, 0.5 to 10 percent of color development filler, and 0.5 to 5 percent of other additives. The method comprises the following steps: weighing various materials except the glass fiber; mixing the materials in a material mixer for 3 to 5 minutes; adding the evenly mixed material into a double screw extruder, wherein the glass fiber is added from the first air outlet, the temperatures from a feed inlet to an extrusion die head are between 160 and 180 DEG C, between 190 and 220 DEG C, between 210 and 240 DEG C, between 220 and 250 DEG C, and between 210 and 240 DEG C respectively, and the rotating speed of a host machine is between 20 and 50 hertz; and then using a plastic injection molding machine to prepare samples. The composite material has the advantages of good apparent mass, obvious white laser labels, abrasion resistance, durability and easy processing.

Description

technical field [0001] The invention relates to a white laser marking glass fiber reinforced nylon 6 composite material and a preparation method thereof, belonging to the field of polymer composite materials. Background technique [0002] Generally speaking, glass fiber reinforced nylon 6 has good properties such as high strength, high heat resistance, high fatigue resistance, and low molding shrinkage, and is widely used in the fields of automobiles, machinery, home appliances, aviation and military components. [0003] Typically, the technique of printing on the surface of a molded resin article can be embossing with ink, paint, or etching the surface with a laser. Compared to other printing technologies, laser marking is less expensive, effective and long-lasting. [0004] For white laser marking on the surface of black or other color molding resins, related companies and personnel have done quite a lot of research. For example, in patent application number 200580046384...

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Problems solved by technology

[0005] However, the technologies provided by the above-mentioned patents do not inv