CN111171546A - PC/ABS laser etching composite material and preparation method thereof - Google Patents

Abstract

The application discloses a PC/ABS laser etching composite material and a preparation method thereof, and solves the problems that the existing laser etching material is poor in physical and mechanical properties, and color deviation after laser etching is caused. In order to solve the technical problem, the embodiment of the application discloses a PC/ABS laser etching alloy material and a preparation method thereof, wherein the laser etching alloy material comprises the following components in percentage by mass: 60-81% of polycarbonate, 15-38% of compound ABS resin, 0.3-0.8% of compound antioxidant, 0.3-0.8% of lubricant and 1-3% of toner, and the technical effects of excellent physical and mechanical properties, uniform marking color, high contrast with a base plate and good processing stability are achieved.

Description

PC/ABS laser etching composite material and preparation method thereof

Technical Field

The application relates to the field of polymer composite materials, in particular to a PC/ABS laser etching composite material and a preparation method thereof.

Background

With the upgrading and development of electronic products, consumers have higher requirements on the appearance of the products, and manufacturers often need to engrave or print patterns on the surfaces of the products. The traditional surface treatment process adopts a printing mode for production, the printing process is complicated in working procedure and low in efficiency, and printing ink adopted by printing basically contains benzene substances, so that certain harm is caused to human health after long-term contact. Therefore, a novel surface treatment process, namely laser etching, is provided.

Laser engraving, also known as laser engraving or laser marking, is a process for performing surface treatment by using an optical principle. Laser engraving production is adopted, required patterns and letters are designed through computer software, laser is directly used for engraving ablation, and production efficiency is greatly improved. And rarely generates harmful substances to human bodies in the production process. Meanwhile, the method has wide adaptability to materials, can produce fine marks on the surfaces of various materials, and has good durability. The original precision of the object can be ensured.

However, the existing laser etching material has poor physical and mechanical properties and poor laser etching effect, and particularly ABS resin has poor weather resistance and ultraviolet resistance. In addition, since the resin surface layer contains C ═ C double bonds, the double bonds are easily broken and crosslinked during aging to become brittle, and when laser etching is performed, the phenomenon of color deviation of the mark and a decrease in contrast with the color of the substrate easily occur.

Disclosure of Invention

The application aims to provide a PC/ABS laser etching composite material and a preparation method thereof, and the PC/ABS laser etching composite material can be used for solving the problems of poor physical and mechanical properties, color deviation after laser etching and the like of the conventional laser etching material.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions: a PC/ABS laser etching composite material comprises the following components in percentage by mass: 60-81% of polycarbonate, 15-38% of compound ABS resin, 0.3-0.8% of composite antioxidant, 0.3-0.8% of lubricant and 1-3% of toner.

In the technical scheme, the PC/ABS laser etching alloy material is prepared by taking polycarbonate, compound ABS, a compound antioxidant, a lubricant and toner as raw materials. Due to the introduction of the PC, the material has excellent thermal stability and mechanical properties, and the marking definition is improved to a certain extent. By adjusting the proportion of the compounded ABS, the problems of low contrast ratio of the marks and the color of the bottom plate and the like are solved.

Further, according to the embodiment of the application, the PC/ABS laser etching composite material comprises, by mass: 81% of polycarbonate, 16% of compound ABS resin, 0.5% of compound antioxidant, 0.5% of lubricant and 2% of toner.

Further, according to the examples herein, wherein the polycarbonate is bisphenol a polycarbonate.

Further, according to the embodiment of the application, the compounded ABS resin is formed by mixing high rubber powder and AS resin.

Further, according to the embodiment of the application, the weight ratio of the high rubber powder to the AS resin is 1: 0.2-5.

further, according to the embodiment of the present application, the composite antioxidant is any two selected from pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], phenyl tris (2, 4-di-tert-butyl) phosphite, antioxidant S9228, and n-octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.

Further, according to the examples of the present application, any two antioxidants are mixed in an equal ratio.

Further, according to an embodiment of the present application, wherein the lubricant is at least one selected from stearic acid, calcium stearate, ethylene bis stearate, and pentaerythritol stearate.

Further, according to the embodiment of the present application, wherein the toner is any one selected from pigment yellow 93, pigment red 179 and pigment orange 71.

In order to achieve the above object, an embodiment of the present application further discloses a preparation method for preparing the PC/ABS laser etching composite material, which includes the following steps:

taking materials, namely taking the raw materials according to the components and the proportion thereof;

mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compound ABS resin into a high-speed mixer to be uniformly mixed;

adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder;

and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Further, according to the embodiment of the application, the melt blending extrusion step specifically comprises:

and (3) melting, blending and extruding the mixture by adopting an extruder, wherein the length-diameter ratio of a screw of the extruder is 1:30-1:50, the extrusion temperature is controlled at 230-300 ℃, and the rotating speed of the screw is controlled at 300-450 r/min.

Compared with the prior art, the method has the following beneficial effects: the PC/ABS laser engraving alloy material is prepared by taking polycarbonate, compound ABS, a compound antioxidant, a lubricant and toner as raw materials. Due to the introduction of the PC, the material has excellent thermal stability and mechanical properties, and the marking definition is improved to a certain extent. By adjusting the proportion of the compounded ABS, the problems of low contrast ratio of the marks and the color of the bottom plate and the like are solved.

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more apparent, embodiments of the present invention are described in further detail below. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships only for the convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

The application provides a PC/ABS laser etching composite material, which comprises Polycarbonate (PC), compound ABS, a compound antioxidant, a lubricant and toner. The PC/ABS laser engraving alloy material prepared by the application solves the technical problems of poor physical and mechanical properties, marking color deviation and poor processing stability in the prior art, and achieves the technical effects of excellent physical and mechanical properties, uniform marking color, high contrast with a bottom plate and good processing stability.

In the PC/ABS laser etching composite material, the mass percentages of the components are respectively as follows: 60-81% of polycarbonate, 15-38% of compound ABS resin, 0.3-0.8% of composite antioxidant, 0.3-0.8% of lubricant and 1-3% of toner.

In the technical scheme, the polycarbonate is the substrate of the PC/ABS laser etching composite material, and the polycarbonate serves as a continuous phase material in the PC/ABS laser etching composite material, so that the bonding effect is achieved, the load is balanced, the load is dispersed, and the effect of protecting the compounded ABS resin is achieved. In the present application, bisphenol A type polycarbonates are preferably used.

In the technical scheme, the addition of the compound ABS resin can increase the processability and the colorability of the PC/ABS laser etching composite material. In the application, the compound ABS resin is preferably prepared by mixing high rubber powder (styrene, acrylonitrile-butadiene rubber) and AS resin (styrene acrylonitrile copolymer), and the weight ratio of the high rubber powder to the AS resin is 1: 0.2-5.

in the technical scheme, the composite antioxidant is used for delaying or inhibiting the oxidation process of the polyester resin, so that the aging of the PC/ABS laser engraving composite material is prevented and the service life of the PC/ABS laser engraving composite material is prolonged, wherein the composite antioxidant preferably adopts any two of tetra [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester, tri (2, 4-di-tert-butyl) phenyl phosphite, an antioxidant S9228 and β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid n-octadecyl ester, and the two antioxidants are mixed in an equal ratio.

In the technical scheme, the lubricant is used for reducing the friction between materials and between the materials and the surface of processing equipment, so that the flow resistance of a solution is reduced, the viscosity of the solution is reduced, the fluidity of the solution is improved, the adhesion of the solution and the processing equipment is avoided, and the smoothness of the surface of a product is improved. In the present application, the lubricant preferably employs at least one of stearic acid, calcium stearate, ethylene bis stearate, and pentaerythritol stearate.

In the above-described technical solution, the toner is used for coloring the resin. In the present application, the toner may be any one of pigment yellow 93, pigment red 179, and pigment orange 71

In the technical scheme, the raw material source of the PC/ABS laser etching composite material provided by the application is shown in Table 1.

Table 1 raw material source table

In addition, the application also provides a preparation method of the PC/ABS laser etching composite material, which comprises the following steps:

taking materials, namely taking the raw materials according to the components and the proportion thereof;

mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, Polycarbonate (PC) and compound ABS resin into a high-speed mixer to be uniformly mixed;

adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

In the technical scheme, the melt blending extrusion steps are specifically as follows: and (3) melting, blending and extruding the mixture by adopting an extruder, wherein the length-diameter ratio of a screw of the extruder is 1:30-1:50, the extrusion temperature is controlled at 230-300 ℃, and the rotating speed of the screw is controlled at 300-450 r/min.

According to the PC/ABS laser engraving alloy material and the preparation method thereof, polycarbonate, compound ABS, a compound antioxidant, a lubricant and toner are used as raw materials to prepare the PC/ABS laser engraving alloy material, the prepared PC/ABS laser engraving alloy material solves the technical problems of poor physical and mechanical properties, marking color deviation and poor processing stability in the prior art, and the technical effects of excellent physical and mechanical properties, uniform marking color, high contrast with a bottom plate and good processing stability are achieved.

The present application will be described in further detail with reference to examples, but the present application is not limited to these examples.

[ example 1 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 2 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 2:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 3 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, specifically 67% of polycarbonate, 30% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 2:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 4 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 47% of polycarbonate, 50% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 2:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 5 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 3:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 6 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 4:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 7 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 5:1, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 8 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:2, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 9 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:3, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 10 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:4, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 11 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:5, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 12 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment red 179). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:5, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 13 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment orange 71). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:5, the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 14 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:1, the composite antioxidant is a mixture of 1076 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

[ example 15 ]

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of composite ABS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite ABS resin is formed by mixing high rubber powder and AS resin in a mass ratio of 1:1, the composite antioxidant is a mixture of 1076 and 168 in a mass ratio of 1:1, and the lubricant is EBS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then putting the premix, the polycarbonate and the compounded ABS resin into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 1

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of high rubber powder, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93). Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the high rubber powder into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 2

Taking materials, namely 77% of polycarbonate, 20% of high rubber powder, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment yellow 93) according to the components and the proportion. Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the high rubber powder into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 3

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of high rubber powder, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment red 179). Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the high rubber powder into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 4

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of high rubber powder, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment orange 71). Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the high rubber powder into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 5

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials comprise 83% of polycarbonate, 16% of high rubber powder, 0.5% of composite antioxidant and 0.5% of lubricant. Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the high rubber powder into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 6

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials specifically comprise 81% of polycarbonate, 16% of high rubber powder, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment orange 71). Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is EBS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the high rubber powder into a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

Comparative example 7

Taking materials, namely taking the raw materials according to the components and the proportion thereof, wherein the raw materials comprise 81% of polycarbonate, 16% of AS resin, 0.5% of composite antioxidant, 0.5% of lubricant and 2% of toner (pigment orange 71). Wherein the composite antioxidant is a mixture of 1010 and 168 in a mass ratio of 1:1, and the lubricant is PETS.

Mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then placing the premix, the polycarbonate and the AS resin in a high-speed mixer to be uniformly mixed.

Adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder; and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

The materials provided in the above examples 1 to 13 and comparative examples 1 to 7 were subjected to a laser etching test, and the marking clarity of the test results was recorded by the following recording method:

0: no mark trace;

1: the mark is fuzzy, and the symbol is not clear;

2: the mark is fuzzy, and the symbol can be seen clearly;

3: the mark is clear; the color contrast is low;

4: the mark is clear, and the color contrast is high;

5: has traces, clear marks, high color contrast and uniform color.

In addition, the thermal stability and mechanical properties of examples 1-13 and comparative examples 1-7 were also tested as follows:

tensile strength (MPa): determination based on ISO 527;

elongation at break (%): determination based on ISO 527;

bending strength (MPa): measurements based on ISO 178;

heat distortion temperature (. degree. C.): the pressure conditions were 0.45MPa, measured according to ISO 75-2.

The compounding ratios and test results of examples 1 to 13 and comparative examples 1 to 7 are summarized in tables 2 to 4.

TABLE 2

TABLE 3

TABLE 4

As shown in the table, the PC/ABS laser engraving alloy material has a good marking effect, and meanwhile, the material can be guaranteed to have excellent thermal stability and mechanical properties.

Although the illustrative embodiments of the present application have been described above to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the embodiments, and various modifications within the spirit and scope of the present application defined and determined by the appended claims will be apparent to those skilled in the art from this disclosure.

Claims (11)

1. The PC/ABS laser etching composite material is characterized by comprising the following components in percentage by mass:

60 to 81 percent of polycarbonate,

15 to 38 percent of compound ABS resin,

0.3 to 0.8 percent of composite antioxidant,

0.3 to 0.8 percent of lubricant,

1-3% of toner.

2. The PC/ABS laser etching composite material as claimed in claim 1, comprising, by mass:

81 percent of polycarbonate,

16 percent of compounded ABS resin,

0.5 percent of composite antioxidant,

0.5 percent of lubricant,

2% of toner.

3. The PC/ABS laser etching composite material as claimed in claim 1 or 2, wherein the polycarbonate is bisphenol A polycarbonate.

4. The PC/ABS laser etching composite material AS claimed in claim 1 or 2, wherein the compound ABS resin is formed by mixing high rubber powder and AS resin.

5. The PC/ABS laser etching composite material AS claimed in claim 4, wherein the weight ratio of the high glue powder to the AS resin is 1: 0.2-5.

6. the PC/ABS laser etching composite material as claimed in claim 1 or 2, wherein the composite antioxidant is any two selected from pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], phenyl tris (2, 4-di-tert-butyl) phosphite, antioxidant S9228, and n-octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate.

7. The PC/ABS laser etching composite material as claimed in claim 6, wherein any two antioxidants are mixed in equal ratio.

8. The PC/ABS laser etching composite material as claimed in claim 1 or 2, wherein the lubricant is at least one selected from stearic acid, calcium stearate, ethylene bis stearate and pentaerythritol stearate.

9. The PC/ABS laser engraving composite material as claimed in claim 1 or 2, wherein the toner is any one selected from pigment yellow 93, pigment red 179 and pigment orange 71.

10. A preparation method for preparing the PC/ABS laser etching composite material as claimed in claim 1 or 2, characterized by comprising the following steps:

taking materials, namely taking the raw materials according to the components and the proportion thereof;

mixing materials, namely mixing the composite antioxidant, the lubricant and the toner to prepare a premix, and then uniformly mixing the premix, the polycarbonate and the compound ABS resin in a high-speed mixer;

adding materials, namely adding the mixed mixture into an extruder through a main feeding port of the extruder;

and (3) melting, blending and extruding, extruding material strips by an extruder, cooling by water, drying by blowing, and granulating to obtain the product.

11. The preparation method of the PC/ABS laser etching composite material as claimed in claim 10, wherein the melt blending extrusion step specifically comprises:

and (3) melting, blending and extruding the mixture by adopting an extruder, wherein the length-diameter ratio of a screw of the extruder is 1:30-1:50, the extrusion temperature is controlled at 230-300 ℃, and the rotating speed of the screw is controlled at 300-450 r/min.