Spraying-free toughened nylon 6 material and preparation method thereof

Abstract

The invention discloses a spraying-free toughened nylon 6 material and a preparation method thereof and belongs to the technical field of modification of high molecular materials. The material is prepared from 59.4 to 76.9 percent of nylon 6 resin, 10 to 15 percent of a toughening agent, 7 to 12 percent of a plasticizer, 3 to 6 percent of maleic anhydride grafted polypropylene, 0.2 to 0.6 percentof oxidized polyethylene wax, 0.2 to 0.5 percent of a flowing modifier, 0.2 to 0.5 percent of an antioxidant, 0.5 to 1.0 percent of a lubricant and 2 to 5 percent of metal master batch. According to the spraying-free toughened nylon 6 material disclosed by the invention, the maleic anhydride grafted polypropylene, the oxidized polyethylene wax, the flowing modifier and the plasticizer are added, the dispersity of the metal master batch in nylon 6 matrix resin and the compatibility between the metal master batch and the nylon 6 matrix resin are improved and the flowability of the material is improved, so that the problem in the prior art that flowing marks and welding marks are formed on the surface by a spraying material in a product injection molding process is avoided; the prepared spraying-free material has a metal texture which is the same as that in a traditional paint spraying technology and the problem that appearance of the spraying-free material is not good in actual application is solved.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a spray-free toughened nylon 6 material and a preparation method thereof. Background technique [0002] Nylon 6 (PA6, also known as polycaprolactam) is widely used in many fields such as automobiles, electronic appliances, and chemical building materials because of its high mechanical strength, wear resistance, self-lubrication, and good electrical insulation. When downstream products are used as both structural parts and exterior parts, it is often necessary to spray paint on the surface to make the parts have a good appearance, thereby improving the quality of the product. But spraying paint on the surface of the product will bring additional problems: the first is that the paint itself has a strong smell, which seriously affects the health of the operator during the painting operation and pollutes the surrounding environment. The second is that it is d...

AI Technical Summary

Problems solved by technology

However, spraying paint on the surface of the product will bring additional problems: First, the paint itself has a strong smell, which seriously affects the health of the operators during the painting operation and also pollutes the surrounding environment

Second, it is difficult to peel off the paint coating of plastic products treated by spray painting, and cannot be recycled and reused, resulting in waste of resources

The third is that the painting process is complex and often requires multiple production processes, resulting in extended production cycles and increased production costs

In this patent, the compatibilizer involved is maleic anhydride grafted polyolefin elastomer, which cannot solve the problem of flow marks and weld marks on the surface of injection-molded products caused by the fluidity of the material.

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