WO2016078488A1

WO2016078488A1 - Glass fiber reinforced polyphenylene sulfide composite with laser engraving function and preparation method therefor

Info

Publication number: WO2016078488A1
Application number: PCT/CN2015/091787
Authority: WO
Inventors: 唐昌伟; 李小辉; 傅轶
Original assignee: 银禧工程塑料（东莞）有限公司
Priority date: 2014-11-18
Filing date: 2015-10-12
Publication date: 2016-05-26
Also published as: CN104448827A

Abstract

The present invention relates to the technical field of high molecular materials, and in particular relates to a glass fiber reinforced polyphenylene sulfide composite with a laser engraving function and a preparation method therefor. The glass fiber reinforced polyphenylene sulfide composite with a laser engraving function consists of the following raw materials in parts by weight: 49.4-82.5 of a polyphenylene sulfide resin, 0-40 of a continuous glass fiber, 5-8 of a flexibilizer, 0.5-1.0 of a weather-resistant agent, 0.3-0.5 of an antioxidant, 0.3-0.5 of a lubricating agent, 3-5 of phlogopite, 1-2 of barium sulfate, 0.1-0.3 of a laser etching aid, and 0-1 of carbon black. The composite of the present invention has excellent mechanical properties, mechanical strength and weather resistance, and has an excellent laser engraving function at the same time, and black, white or gray, etc. distinctive laser markers, of which the strokes are clear and fine and smooth and the colors are obvious, long-lasting and will not fade, can be etched on substrates of different colors with a laser; and the preparation method therefor is simple and beneficial for popularization and application.

Description

Glass fiber reinforced polyphenylene sulfide composite material with laser engraving function and preparation method thereof

Technical field

The invention relates to the technical field of polymer materials, in particular to a glass fiber reinforced polyphenylene sulfide composite material with laser engraving function and a preparation method thereof.

Background technique

In recent years, with the diversification of the appearance requirements of electronic products, electronic products are constantly changing their appearance quality. The single metal or plastic casing of electronic products can not meet the diversified market demand, and the metal and plastic phase The combined electronic product case has become the new favorite of people. At present, some of the more popular electronic products on the market are products that use aluminum alloy surface treatment and resin polymer bonding technology. At the same time, various information such as production date, barcode, company slogan, serial number, etc. need to be marked on such electronic products. . Commonly used marking techniques such as printing, embossing, printing, etc., these printing techniques are very complicated, requiring skilled work technicians and a lot of time. Furthermore, it is quite difficult to mark characters or symbols on irregular surfaces using the techniques described above. The advantages of laser non-contact, high-speed marking make the importance of laser marking more and more obvious, especially in plastic marking, because the marking of plastic products makes the laser marking more durable and wear-resistant. In addition, since the laser marking does not use a solvent, there is no problem of causing environmental pollution or toxicity.

Polyphenylene sulfide resin (PPS) is also called polyphenylene sulfide. PPS plastic is a white, brown, high crystallinity, hard and brittle polymer with good overall performance and high temperature and corrosion resistance. , radiation resistance, excellent mechanical properties and electrical properties, widely used in electronics, electrical appliances. PPS plastics have good bonding properties with metals and non-metals, especially for glass, aluminum, titanium, stainless steel, etc. Good adhesion to glass, it is very suitable for lining of chemical equipment. However, the existing fiber-reinforced polyphenylene sulfide material has low impact strength, poor bending resistance, poor weather resistance, easy yellowing for outdoor use, single color, and is not suitable for light color, bright color products, and PPS resin in laser engraving. The effect is very poor, the surface is easy to burn charred, the traditional glass fiber reinforced PPS composite material, although the temperature resistance is improved, but after laser engraving, the surface of the product is easy to expose the glass fiber, the writing strokes are rough, unclear, the color of the writing and The color contrast of the substrate is not obvious; although the laser engraving additive commonly used in the market can be added to improve the laser engraving effect, the improvement effect is limited to the color of the laser engraving handwriting, and the improvement effect is not obvious for the clarity and exquisiteness of the handwriting stroke. These limits the application of fiber reinforced polyphenylene sulfide materials in certain fields, especially in applications requiring laser marking.

Sichuan University Patent (CN103665867A) discloses a reinforced polyphenylene sulfide composite material and a preparation method thereof, which comprises adding a high temperature resistant compatibilizer to a reinforcing filler and polyphenylene sulfide to improve polyphenylene sulfide The interfacial bonding property with the reinforcing filler reduces the agglomeration of the filler, thereby enhancing the mechanical properties and mechanical strength of the polyphenylene sulfide composite. Although a reinforced polyphenylene sulfide composite material having excellent performance is obtained, the patent does not mention the stimulating effect of the composition. Light engraving effect.

The blonde technology patent (200510036168.9) discloses a high toughness filled reinforced polyphenylene sulfide composite material and a preparation method thereof, although a flame retardant, environmentally friendly, thermally stable, and mechanically good conforming material can be obtained, but no laser is involved. Characterization of the quality and clarity of the engraving mark.

Japanese Patent (2001-302922) discloses a resin composition for laser marking comprising an ABS resin, a maleimide-based copolymer, a vinyl cyanide copolymer, iron oxide as a black pigment, and other coloring agents. However, when the resin composition is used for laser marking, the white color of the marked product is not clear.

Summary of the invention

The main object of the present invention is to provide a glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function and a preparation method thereof according to the above-mentioned deficiencies in the prior art, and the composite material has excellent mechanical properties, mechanical strength and weather resistance. At the same time, it has excellent laser engraving function, which can laser engrave laser markings with clear and delicate strokes and obvious color and long-lasting color. The preparation method is simple and is beneficial to popularization and application.

The object of the present invention is achieved by the following technical solutions: a glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function, which is composed of the following raw materials by weight: polyphenylene sulfide resin 49.4-82.5 parts, continuous glass fiber 0-40 Parts, toughener 5-8 parts, weathering agent 0.5-1.0 parts, antioxidant 0.3-0.5 parts, lubricant 0.3-0.5 parts, phlogopite 3-5 parts, barium sulfate 1-2 parts, laser engraving aid 0.1-0.3 parts, carbon black 0-1 parts.

Preferably, the glass fiber reinforced polyphenylene sulfide composite material having the laser engraving function is composed of the following raw materials by weight: polyphenylene sulfide resin 49.4-82.5 parts, continuous glass fiber 5-40 parts, toughening agent 5- 8 parts, 0.5-1.0 parts of weathering agent, 0.3-0.5 parts of antioxidant, 0.3-0.5 parts of lubricant, 3-5 parts of phlogopite, 1-2 parts of barium sulfate, 0.1-0.3 parts of laser engraving aid, carbon black 0.1-1 part.

The polyphenylene sulfide resin has an intrinsic viscosity of 300 to 1000 ml/g, a melting point of 280 to 290 ° C, a powdery appearance, and a particle size of less than 20 mesh.

The continuous glass fiber is an alkali-free glass fiber. The finer the diameter of the glass fiber, the higher the strength of the fiber, the bending strength of the glass fiber reinforced plastic obtained by the glass fiber of different diameters, and the finer the glass fiber, the lower the strength of the plastic. Therefore, our preferred glass fibers have a diameter of 10-20 μm.

The toughening agent is one or one of ethylene-butyl acrylate-glycidyl methacrylate copolymer, maleic anhydride-ethylene-octene copolymer, and binary copolymer of ethylene and methyl acrylate. The combination above.

Preferably, the toughening agent is composed of a mixture of ethylene-butyl acrylate-glycidyl methacrylate copolymer and maleic anhydride-ethylene-octene copolymer in a mass ratio of 1:2. Alternatively, the toughening agent is composed of a maleic anhydride-ethylene-octene copolymer and a binary copolymer of ethylene and methyl acrylate in a ratio of 2:1 by mass. Or, The toughening agent is composed of an ethylene-butyl acrylate-glycidyl methacrylate copolymer and a binary copolymer of ethylene and methyl acrylate in a ratio of 1:3 by mass. Alternatively, the toughening agent is composed of ethylene-butyl acrylate-glycidyl methacrylate copolymer, maleic anhydride-ethylene-octene copolymer, and binary copolymer of ethylene and methyl acrylate in a mass ratio of 3 : 1:1 ratio mix composition.

The main component of the weathering agent is a high molecular weight hindered amine light stabilizer, one or a combination of one or more of benzotriazole ultraviolet absorbers. Specifically, the high molecular weight hindered amine light stabilizer is BASF's 622, and the benzotriazole ultraviolet absorber is UV234.

The antioxidant is pentaerythritol-dodecyl propyl ester (412S), 4,4'-[1,1'-biphenyl]ylidene diphosphonic acid-tetrakis[2,4-di-tert-butylphenyl One or a combination of ester (PEPQ), tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol ester (1010).

The lubricant is one or a combination of pentaerythritol stearate, montan wax, long chain carboxylate.

The phlogopite has a particle size of 10 to 100 μm. The smaller the particle size of the phlogopite, the clearer and finer the line after laser engraving of the composite. However, the smaller the particle size of phlogopite, the larger the specific surface area, the more difficult it is to disperse and the easier agglomeration. In combination with the above factors, phlogopite having a particle diameter of 10 to 100 μm is preferred.

The barium sulfate has a particle diameter of from 1 to 10 μm. The smaller the particle size of the spherical barium sulfate, the better the reinforcing effect. The clearer and finer the line after laser engraving of the composite material, the smaller the particle size, the easier the agglomeration and the more difficult to disperse. In combination with the above factors, phlogopite having a particle diameter of 1 to 10 μm is preferred.

The laser engraving aid is a mixture of cerium oxide and tin oxide. The mixing ratio of cerium oxide to tin oxide is (30-50): (50-70).

The main component of the carbon black is Degussa 50L carbon black.

The invention also provides the preparation method of the above glass fiber reinforced polyphenylene sulfide composite material with laser engraving function, comprising the steps of: weighing phlogopite, barium sulfate, radium engraving aid by weight, and pre-mixing, and then by weight The polyphenylene sulfide resin, toughening agent, weathering agent, antioxidant, lubricant are added to the mixing machine and mixed into the twin-screw extruder. The speed of the material mixing machine is 500-1000 rpm. /min; then continuous glass fiber melt extrusion in the middle of the fifth and sixth zones of the extruder, control one zone temperature: 180-200 ° C, two zone temperature: 300-320 ° C, three zone temperature: 290-310 °C, temperature in four zones: 280-300°C, temperature in five zones: 200-240°C, temperature in six zones: 200-240°C, temperature in seven zones: 200-240°C, temperature in eight zones: temperature in 250-270°C, temperature in nine zones : 280-300 ° C, main engine speed: 305-400 rev / min; finally cooled, dried, pelletized, dried, injection molded.

The invention has the beneficial effects of using a laser engraving aid as a laser marking reinforcing component and a continuous glass fiber as a performance enhancing component to prepare a resin composite having excellent mechanical properties and laser marking properties. Excellent mechanics Performance and mechanical strength, weather resistance, and excellent laser engraving function, laser-etched black, white or gray strokes on different color substrates, clear, delicate, clear, long-lasting color laser marking; preparation The method is simple and is conducive to popularization and application.

DRAWINGS

The invention is further illustrated by the accompanying drawings, but the embodiments in the drawings do not constitute any limitation to the present invention. For those skilled in the art, other work can be obtained according to the following drawings without any creative work. The figure.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing the production process of the present invention.

detailed description

The invention is further described in conjunction with the following examples.

The relevant raw materials in the examples are as follows:

1. The matrix resin is polyphenylene sulfide resin (PPS), grade PPS1330C, intrinsic viscosity is 200--400ml/g, produced by Zhejiang Xinhecheng Special Materials Co., Ltd.; 2. Continuous glass fiber is prepared and produced by China Jushi Group. The thermoplastics are plied roving, the glass fiber diameter is 14μm, grade 988A,; 3, the toughening agent is ethylene-butyl acrylate-glycidyl methacrylate copolymer and ethylene and methyl acrylate produced by DuPont Meta-copolymer, grades are AX8900 and 1125AC, (AX8900 and 1125AC are added in a ratio of 1:3); 4. Weathering agent is 622 and UV234 produced by BASF (the ratio of 622 and UV234 is 1:1); The auxiliaries are supplied by Guangzhou Aika Company under the trade name LASSESAFE042 (hereinafter referred to as L042); 6. The main antioxidant tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] pentaerythritol ester The grade 1010 and the auxiliary antioxidant are pentaerythritol-dodecyl propyl ester (412S) (1010 and 412S are added in a ratio of 1:1); 7. The lubricant is a long-chain sodium salt (carbon chain length 18-) --36 carbon atoms) is CAV101; phlogopite has a particle size of 10-100μm, and barium sulfate has a particle size of 1-10μ m. Carbon black is supplied to Degussa under the brand name 50L.

In the examples 1-5, the glass fiber reinforced polyphenylene sulfide composite material with laser engraving function is produced by a 65 twin-screw extruder manufactured by Ruiya Company.

Example 1.

PPS parts by weight 82.5, toughening agent parts by weight 8, weathering agent parts by weight 1, phlogopite parts by weight 5, laser engraving parts by weight 0.5, antioxidant parts by weight 0.5, barium sulfate parts by weight 2, lubricant CAV 101 parts by weight 0.5; The above components were flow-through at room temperature according to the preparation method in a high-speed mixer, mixed uniformly and then produced in a twin-screw extruder. Processing conditions: material mixing speed: 500 rev / min; control one zone temperature: 200 ° C, two zone temperature: 300, three zone temperature: 290 ° C, four zone temperature: 280 ° C, five zone temperature: 240 ° C, six Zone temperature: 240 ° C, seven zones temperature: 240 °C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C; main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Example 2.

PPS parts by weight 73.2, toughening agent parts by weight 7, weathering agent parts by weight 0.8, phlogopite parts by weight 4.5, laser engraving parts by weight 0.5, antioxidant parts by weight 0.5, barium sulfate parts by weight 2, lubricant CAV 101 parts by weight 0.5, carbon black 50L weight fraction 1; in the high-speed mixer, the above components are processed at room temperature according to the preparation route, mixed uniformly and then produced in a twin-screw extruder, continuous glass fiber is added from the middle of the twin-screw, and the glass fiber is controlled. The content is 10. Processing conditions: material mixing speed: 600 rev / min; control one zone temperature: 200 ° C, two zone temperature: 310, three zone temperature: 300 ° C, four zone temperature: 290 ° C, five zone temperature: 220 ° C, six Zone temperature: 220 ° C, seven zone temperature: 220 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Example 3.

PPS parts by weight 66.5, toughening agent parts by weight 6, weathering agent parts by weight 0.6, phlogopite parts by weight 4.0, laser engraving part by weight 0.4, antioxidant parts by weight 0.5, barium sulfate parts by weight 1.5, lubricant CAV 101 parts by weight 0.5; The above components were flow-through at room temperature according to the preparation method in a high-speed mixer, mixed and then produced in a twin-screw extruder, and continuous glass fibers were added from the middle of the twin-screw to control the glass fiber content to 20. Processing conditions: material mixing speed: 600 rev / min; control one zone temperature: 200 ° C, two zone temperature: 310, three zone temperature: 300 ° C, four zone temperature: 290 ° C, five zone temperature: 220 ° C, six Zone temperature: 220 ° C, seven zone temperature: 220 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Example 4.

PPS parts by weight 58.2, toughening agent parts by weight 5, weathering agent parts by weight 0.5, phlogopite parts by weight 3.5, laser engraving part by weight 0.3, antioxidant parts by weight 0.5, barium sulfate parts by weight 1.5, lubricant CAV 101 parts by weight 0.5, carbon black 50L weight fraction 1; in the high-speed mixer, the above components are processed at room temperature according to the preparation route, mixed uniformly and then produced in a twin-screw extruder, continuous glass fiber is added from the middle of the twin-screw, and the glass fiber is controlled. The content is 30. Processing conditions: material mixing speed: 600 rev / min; control one zone temperature: 200 ° C, two zone temperature: 320, three zone temperature: 310 ° C, four zone temperature: 290 ° C, five zone temperature: 200 ° C, six Zone temperature: 200 ° C, seven zone temperature: 200 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Example 5.

PPS parts by weight 49.2, toughening agent parts by weight 5, weathering agent parts by weight 0.5, phlogopite parts by weight 3, laser engraving agent 0.3 parts by weight, 0.5 parts by weight of antioxidant, 1 part by weight of barium sulfate, 0.5 parts by weight of lubricant CAV, and 50 parts by weight of carbon black; the above components are mixed in a high-speed mixer at room temperature according to the route of preparation. After homogenization, it was produced in a twin-screw extruder, and continuous glass fibers were added from the middle of the twin-screw to control the glass fiber content to 40. Processing conditions: material mixing speed: 800 rev / min; control one zone temperature: 200 ° C, two zone temperature: 320, three zone temperature: 310 ° C, four zone temperature: 300 ° C, five zone temperature: 200 ° C, six Zone temperature: 200 ° C, seven zone temperature: 200 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Comparative example 1.

PPS parts by weight 90, toughening agent parts by weight 8, weathering agent parts by weight, antioxidant parts by weight 0.5, lubricant CAV 101 parts by weight 0.5, carbon black 50 L parts by weight; in the high-speed mixer, the above components are According to the route of the preparation method at room temperature, the mixture is uniformly mixed and then produced in a twin-screw extruder. Processing conditions: material mixing speed: 500 rev / min; control one zone temperature: 200 ° C, two zone temperature: 300, three zone temperature: 290 ° C, four zone temperature: 280 ° C, five zone temperature: 240 ° C, six Zone temperature: 240 ° C, seven zone temperature: 240 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Comparative example 2.

PPS parts by weight 89.5, toughening agent parts by weight 8, weathering agent parts by weight, laser encapsulating parts by weight 0.5, antioxidant parts by weight 0.5, lubricant CAV 101 parts by weight of 0.5; in the high-speed mixer, the above components are According to the route of the preparation method at room temperature, the mixture is uniformly mixed and then produced in a twin-screw extruder. Processing conditions: material mixing speed: 500 rev / min; control one zone temperature: 200 ° C, two zone temperature: 300, three zone temperature: 290 ° C, four zone temperature: 280 ° C, five zone temperature: 240 ° C, six Zone temperature: 240 ° C, seven zone temperature: 240 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Comparative example 3.

PPS parts by weight 83, toughening agent parts by weight 8, weathering agent parts by weight 1, phlogopite part by weight 5, antioxidant parts by weight 0.5, barium sulfate parts by weight 2, lubricant CAV 101 parts by weight 0.5, carbon black 50 L by weight 1; The above components were flow-through at room temperature according to the preparation method in a high-speed mixer, mixed uniformly and then produced in a twin-screw extruder. Processing conditions: material mixing speed: 500 rev / min; control one zone temperature: 200 ° C, two zone temperature: 300, three zone temperature: 290 ° C, four zone temperature: 280 ° C, five zone temperature: 240 ° C, six Zone temperature: 240 ° C, seven zone temperature: 240 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Comparative Example 4.

5 parts by weight of PPS, 5 parts by weight of toughening agent, 0.5 parts by weight of weathering agent, 3.5 parts by weight of phlogopite, 0.5 parts by weight of antioxidant, 1.5 parts by weight of barium sulfate, and 0.5 parts by weight of CAV; 0.5 in a high-speed mixer The components were processed at room temperature according to the route of the preparation method, mixed uniformly and then produced in a twin-screw extruder, and continuous glass fibers were added from the middle of the twin-screw to control the glass fiber content to 30. Processing conditions: material mixing speed: 600 rev / min; control one zone temperature: 200 ° C, two zone temperature: 320, three zone temperature: 310 ° C, four zone temperature: 290 ° C, five zone temperature: 200 ° C, six Zone temperature: 200 ° C, seven zone temperature: 200 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

Comparative example 5.

PPS parts by weight 63.2, toughening agent parts by weight 5, weathering agent parts by weight 0.5, laser engraving part by weight 0.3, antioxidant parts by weight 0.5, CAV 101 parts by weight 0.5; the above components are at room temperature in a high speed mixer According to the preparation method, the mixture was uniformly mixed and then produced in a twin-screw extruder. The continuous glass fiber was added from the middle of the twin-screw, and the glass fiber content was controlled to 30. Processing conditions: material mixing speed: 600 rev / min; control one zone temperature: 200 ° C, two zone temperature: 320, three zone temperature: 310 ° C, four zone temperature: 290 ° C, five zone temperature: 200 ° C, six Zone temperature: 200 ° C, seven zone temperature: 200 ° C, eight zone temperature: 270 ° C, nine zone temperature: 300 ° C, main engine speed: 400 rev / min; finally cooled, dried, pelletized, dried, injection molding.

The performance test criteria for the products in Examples 1-5 and Comparative Examples 1-5 are as follows:

1. The specific gravity is tested according to the ASTM D792/(GB/T1033) standard;

2. Notched impact strength is tested according to ASTM D256/(GB/T1843) standards;

3. Tensile performance test is tested according to ASTM D638/(GB/T1040) standard;

4. The bending performance test is tested according to the ASTM D790/(GB/T9341) standard;

5. The flame retardant performance test is tested according to the UL-94/(GB/T2408) standard;

6. The metal bond strength is tested according to GB/T13936 standard, and the pull force is used to measure the strength;

The performance comparison of the products obtained in the examples and the comparative examples is as follows:

The laser marking equipment uses MYDP-50L laser marking equipment from Shanghai Radium Laser Equipment Co., Ltd., with a laser wavelength of 1064 nm and an average power of 50W. It can be seen from the above table that the addition of radium engraving aid and phlogopite and barium sulfate has no effect on the mechanical properties, flame retardant properties and metal bond strength of the glass fiber reinforced polyphenylene sulfide composite, mainly affecting the glass fiber reinforcement. The mechanical properties of the PPS composite are the glass fiber content. The higher the glass fiber content, the better the mechanical properties of the composite and the higher the bonding ability with the metal.

It should be noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and are not intended to limit the scope of the present invention. Although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand The technical solutions of the present invention may be modified or equivalently substituted without departing from the spirit and scope of the technical solutions of the present invention.

Claims

A glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function, which is characterized by: the following raw materials by weight:
The glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function according to claim 1, wherein the polyphenylene sulfide resin has an intrinsic viscosity of 300 to 1000 ml/g and a melting point of 280 to 290 ° C. It is in the form of powder and has a particle size of less than 20 mesh.
The glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function according to claim 1, wherein the continuous glass fiber is an alkali-free glass fiber having a diameter of 10 to 20 μm.
The glass fiber reinforced polyphenylene sulfide composite material with laser engraving function according to claim 1, wherein the toughening agent is ethylene-butyl acrylate-glycidyl methacrylate copolymer and maleic anhydride. a combination of one or more of an ethylene-octene copolymer, a binary copolymer of ethylene and methyl acrylate.
The glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function according to claim 1, wherein the weathering agent is one or one of a hindered amine light stabilizer and a benzotriazole ultraviolet absorber. More than one combination.
The glass fiber reinforced polyphenylene sulfide composite material with laser engraving function according to claim 1, wherein the antioxidant is pentaerythritol dithiopropyl propyl ester, 4, 4'-[1, 1' -biphenyl]ylidene diphosphonic acid-tetrakis[2,4-di-tert-butylphenyl]ester, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]pentaerythritol One or more combinations of esters.
The glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function according to claim 1, wherein the lubricant is one or a kind of pentaerythritol stearate, montan wax, and long-chain carboxylate. The combination above.
The glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function according to claim 1, wherein the phlogopite has a particle diameter of 10 to 100 μm, and the barium sulfate has a particle diameter of 1-10 μm. The carbon black has a particle diameter of 10 to 20 nm, a pH of 7.5 to 8.5, and a specific surface area of 175 to 200.
The glass fiber reinforced polyphenylene sulfide composite material having a laser engraving function according to claim 1, wherein the laser engraving aid is a mixture of cerium and tin oxide.
The method for preparing a glass fiber reinforced polyphenylene sulfide composite material with laser engraving function according to any one of claims 1 to 9, characterized in that it comprises the steps of: weighing phlogopite, barium sulfate, radium by weight The engraving aid is pre-mixed and ready for use, and then the polyphenylene sulfide resin, the toughening agent, the weathering agent, the antioxidant, the lubricant are weighed into the mixing machine and mixed into the twin-screw extruder. The speed of the material mixer is: 500-1000 rpm; then continuous glass fiber melt extrusion is added between the five zones and the six zones in the middle of the extruder to control the temperature of one zone: 180-200 ° C, the temperature of the second zone: 300 -320 ° C, three zone temperature: 290-310 ° C, four zone temperature: 280-300 ° C, five zone temperature: 200-240 ° C, six zone temperature: 200-240 ° C, seven zone temperature: 200-240 ° C, eight Zone temperature: 250-270 ° C, nine zone temperature: 280-300 ° C, main engine speed: 305-400 rev / min; finally cooled, dried, pelletized, dried, injection molding.