A kind of ABS composition and preparation method thereof

Abstract

The invention discloses an ABS composition, which comprises the following components in parts by weight: 100 parts of ABS resin; 1-15 parts of glycidyl ester polymer; 0.5-2.5 parts of near-infrared reflective pigment; 0.3-3 parts of toner share. The ABS composition of the present invention is compounded by glycidyl ester polymers and near-infrared reflective black pigments, so that the ABS composition of the present invention can have good marking properties without adding foaming agents and marking agents. Marking effect, the marked mark has the characteristics of high whiteness, slight yellowing, and no stain.

Description

Technical field [0001] The present invention relates to the technical field of polymer materials, in particular, it relates to a composition and method for preparing ABS. Background technique [0002] Laser marking is the use of high energy density laser illumination of a workpiece, the surface layer vaporized material, foam, ablation or color change, thereby leaving a method of marking a permanent marker. Tag having fast speed, writing clear, permanent, wear-resistant, environmental protection, etc., are widely used in industrial identification. White laser marking printed in black ABS plastic, mainly using the principle of the resin is irradiated with laser light endothermic foaming is achieved, it is necessary to add a foaming agent, expensive marking laser marking or the like functional additives. [0003] Commonly used laser marking additive has a function of blowing agent, a marking agent, wherein the blowing agent is the main choice: polymethyl methacrylate; marking agent ...

AI Technical Summary

Problems solved by technology

Although the marking effect of laser marking can be improved by adjusting the above parameters, the improvement effect is limited, especially when the marking font is small

And the process parameters are not easy to control

[0005] Chinese patent 200710076488.6 enhances the effect of laser marking ABS plastic and its preparation method, using carbon nanotubes, lanthanide oxides, and liquid crystal polymers to improve heat conduction and ABS thermal stability during laser marking, but carbon nanotubes, lanthanide oxides high cost

Chinese patent 201410837554.7 discloses a radium engraving masterbatch for light-color marking and its preparation method and application, adding light reflection toner and light absorption toner, but these toners only have better reflection and absorption in the visible light region, However, the reflection and absorption of laser light with a wavelength in the near-infrared region is very limited.

Chinese patent 201410036732.6 impact-resistant ABS resin composition for white laser marking and its preparation and application discloses the addition of polymethyl methacrylate to improve the laser marking effect, but it will have a greater impact on the impact performance and increase the material cost

However, it only uses near-infrared reflective pigments to reflect short-wavelength, low-energy ultraviolet rays

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