A kind of spray-free plastic and preparation method thereof

Abstract

The invention discloses a spray-free plastic and a preparation method thereof. Wherein, the spray-free plastic includes the following components by mass: spray-free plastic, which comprises the following components by mass: 40-90 parts of ABS resin, 5-30 parts of AS resin, 1-10 parts of pearl powder, aluminum silver 0.5-10 parts of slurry, 2-25 parts of mineral powder, 0.5-5 parts of dispersant, 0.5-10 parts of foaming agent, 2-10 parts of foaming agent, 0.3-5 parts of antioxidant, 0.2-0 parts of coupling agent 2 servings. The present invention allows the foaming agent to generate a number of tiny bubbles to arrange the pearl flakes and aluminum-silver paste flakes in disorder, so that the outer surface of the plastic product prepared by injection molding using the spray-free plastic of the present invention completely eliminates or greatly reduces flow lines Surface defects such as welding lines or bright and dark lines have excellent physical properties, and can make the surface of plastic products produce a metal texture effect that is closer to the spraying effect.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a spray-free plastic and a preparation method thereof. Background technique [0002] The traditional plastic shell is to form the appearance color on the plastic shell by spraying or other means to make the appearance of the product colorful. However, the spraying process is cumbersome and has certain environmental pollution. In recent years, spray-free plastics have appeared. Spray-free plastics are an environmentally friendly material that has attracted widespread attention in recent years. By directly adding metal effect powders to plastics, the appearance of metallic texture and pearlescent sparkle can be realized. Since the material does not use paint or paint, it can fully realize ultra-low emissions of volatile organic compounds (VOCS) and 100% material recycling, and is a real green environmental protection material. At the same time, multiple links in the spraying pr...

AI Technical Summary

Problems solved by technology

[0003] However, the existing spray-free plastics are prone to surface defects such as flow lines, weld lines or light and dark lines that affect the appearance of the product during the injection molding process

For example, if figure 1 As shown, the existing spray-free plastic is injected into the molding mold through the injection port in the molten state. During the process of filling the mold, the pearlescent powder is easy to follow the flow direction of the molten plastic to form an orderly pattern starting from the injection port and ending at the end of the product. Arrangement, the surface of the product presents surface defects such as stripes, waves, and bright streamlines that reflect light in a single direction. The visual effect of the product surface is far from the spraying effect.

Images