CN112812532A - Material for laser etching and preparation method thereof - Google Patents
Material for laser etching and preparation method thereof Download PDFInfo
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- CN112812532A CN112812532A CN202011584387.1A CN202011584387A CN112812532A CN 112812532 A CN112812532 A CN 112812532A CN 202011584387 A CN202011584387 A CN 202011584387A CN 112812532 A CN112812532 A CN 112812532A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to the technical field of laser etching, in particular to a material for laser etching and a preparation method thereof. The material for laser etching comprises the following raw materials in parts by weight: 80-90 parts of PC, 8-14 parts of glass fiber, 8-15 parts of ABS resin, 12-18 parts of inorganic filler, 1.5-3 parts of laser engraving auxiliary agent, 15-25 parts of compatilizer, 0.5-2 parts of antioxidant, 15-22 parts of synergistic auxiliary agent and 3-7 parts of color master batch. The material for laser etching has good mechanical property and aging resistance, better toughness, good etching effect during laser etching, clear patterns and writing and long service life; the preparation method of the material is simple and convenient to operate, easy to control, high in production efficiency, stable in quality of the prepared product and beneficial to industrial mass production.
Description
Technical Field
The invention relates to the technical field of laser etching, in particular to a material for laser etching and a preparation method thereof.
Background
With the development of science and technology and the progress of society, electronic and electric products have played an important role in people's life, and the existing electronic and electric products have long needed to be engraved or printed with patterns on the surfaces thereof. Laser engraving is a new surface treatment process, which is also called laser engraving processing, and the laser engraving can achieve the processing purpose by using numerical control technology as a basis and laser as a processing medium, wherein the processing material is instantly melted and gasified by laser engraving irradiation. Laser engraving is to use laser technology to engrave characters and patterns on an object, and the surface of the characters or patterns engraved by the laser technology is still smooth, and the handwriting is difficult to wear. However, the existing laser engraving material has poor mechanical properties, aging resistance and engraving effect, and is to be further improved.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide the material for laser etching, which has good mechanical property and aging resistance, better toughness, good engraving effect during laser etching, clear patterns and writing and long service life.
The invention also aims to provide a preparation method of the material for laser etching, which is simple and convenient to operate, easy to control and high in production efficiency, and the prepared material for laser etching has good mechanical property and aging resistance, has a good engraving effect when being subjected to laser etching, is clear in patterns and writing, is stable in product quality, and is beneficial to industrial mass production.
The purpose of the invention is realized by the following technical scheme: a material for laser etching comprises the following raw materials in parts by weight: 80-90 parts of PC, 8-14 parts of glass fiber, 8-15 parts of ABS resin, 12-18 parts of inorganic filler, 1.5-3 parts of laser engraving auxiliary agent, 15-25 parts of compatilizer, 0.5-2 parts of antioxidant, 15-22 parts of synergistic auxiliary agent and 3-7 parts of color master batch.
According to the invention, the raw materials such as PC, ABS resin and glass fiber are compounded, and are well matched with the synergistic assistant and other raw materials, the compatilizer is added to improve the binding force between PC, ABS and the inorganic filler, the compatibility of the raw materials is good, the prepared material for laser engraving has good mechanical property and aging resistance, and has good toughness, good engraving effect during laser engraving, clear patterns and writing and long service life. The PC is preferably, but not limited to, kesichun PC 3103. The ABS is preferably, but not limited to, Ningbo Taiwan AG15E 1.
Further, the glass fiber is alkali-free glass fiber. Compared with the alkali glass fiber, the alkali-free glass fiber has better ductility, strength, rigidity and aging resistance, and can effectively enhance the mechanical property of the material for laser etching. The color master batch is preferably but not limited to Kabert UN2014 color master batch, and the glossiness, the mechanical property and the processing property of the material for laser engraving are improved. The laser etching aid is preferably, but not limited to, laser etching aid LaserAT-7762.
Further, the inorganic filler is at least one of calcium carbonate, talc and silica. The particle size of the inorganic filler is 50-150 nm. Furthermore, the inorganic filler is composed of calcium carbonate, talcum powder and silicon dioxide according to the weight ratio of 1.5-2:0.5-1: 1. The inorganic filler can effectively adjust the rigidity, toughness, impact resistance and the like of materials used for laser etching, improve the thermal stability of products, and can be uniformly dispersed in a system, thereby improving the rheological property of the system, and improving the surface smoothness and processability.
Further, the compatilizer is at least one of maleic anhydride grafted ethylene-octene copolymer and maleic anhydride-ethylene-acrylate terpolymer. The maleic anhydride grafted ethylene-octene copolymer is preferably, but not limited to, maleic anhydride grafted ethylene-octene copolymer PC-28. The maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer is preferably, but not limited to, maleic anhydride acrylonitrile-butadiene-styrene VE-335K. By adopting the compatilizer, the invention can improve the binding force between PC and ABS and inorganic filler and other raw materials, and improve the tensile strength, bending strength and impact strength of the material for laser etching.
Further, the antioxidant is at least one of antioxidant BHT, antioxidant 1010, antioxidant 1076 and antioxidant 168. Furthermore, the antioxidant comprises antioxidant BHT, antioxidant 1010 and antioxidant 168 according to the weight ratio of 2-3:0.6-1.2: 1. By adopting the antioxidant, the thermal degradation and oxidative degradation of the material for laser etching can be effectively inhibited, the ageing resistance of the material for laser etching is improved, the antioxidant effect can be kept for a long time, and the durability of the material for laser etching is improved.
Further, each part of the synergistic auxiliary comprises the following raw materials in parts by weight: 10-15 parts of PVDF resin, 6-9 parts of vinyl tri (beta-methoxyethoxy) silane, 5-8 parts of ethylene propylene diene monomer, 5-8 parts of hydroxyethyl cellulose, 6-10 parts of nano titanium dioxide and 3-6 parts of calcium stearate.
According to the invention, the PVDF resin, the vinyl tri (beta-methoxyethoxy) silane, the ethylene propylene diene monomer, the hydroxyethyl cellulose, the nano titanium dioxide and the calcium stearate are compounded to prepare the synergistic auxiliary agent, so that the prepared material for laser etching has good mechanical property and aging resistance, good toughness and good engraving effect during laser etching. Wherein, the chemical structure of the PVDF resin is bonded by fluorine-carbon bonding bond, the structure with short bond property forms the most stable and firmest bond with hydrogen ions, and the PVDF resin has good weather resistance, chemical corrosion resistance, high temperature resistance and oxidation resistance; the PVDF resin is matched with vinyl tri (beta-methoxyethoxy) silane, nano titanium dioxide and ethylene propylene diene monomer, so that the compatibility in a system is good, the mechanical property and the weather resistance of the material are improved, the material has better appearance, the surface of the product is smooth, and the processing performance of the material for laser engraving can be improved by matching hydroxyethyl cellulose with calcium stearate and other raw materials, so that the compatibility of all the raw materials is good, and the mechanical strength is high.
The invention also provides a preparation method of the material for laser etching, which comprises the following steps: and mixing the raw materials in proportion, adding the mixture into a double-screw extruder, and performing melt extrusion granulation to obtain the material for laser engraving.
Further, the mixing step of mixing the raw materials is as follows: proportionally putting the raw materials into a high-speed stirrer, and mixing at 60-70 ℃ and at 600-800RPM for 15-25 min.
Further, the feeding speed of the double-screw extruder is 30-50RPM/min, and the screw rotating speed is 300-400 RPM. The temperature of each zone of the double-screw extruder is respectively as follows: the first region is 200-. The preparation method is simple and convenient to operate, easy to control, high in production efficiency, stable in quality of the prepared product, excellent in performance, good in appearance of the product and strong in durability.
The invention has the beneficial effects that: the material for laser etching has good mechanical property and aging resistance, better toughness, good etching effect during laser etching, clear patterns and writing and long service life; the preparation method of the material is simple and convenient to operate, easy to control, high in production efficiency, stable in quality of the prepared product and beneficial to industrial mass production.
Drawings
FIG. 1 is a graph showing the laser etching effect of the product obtained in example 1 of the present invention.
Detailed Description
Example 1
A material for laser etching comprises the following raw materials in parts by weight: 85 parts of PC, 10 parts of glass fiber, 12 parts of ABS resin, 15 parts of inorganic filler, 2.5 parts of laser engraving auxiliary agent, 18 parts of compatilizer, 1 part of antioxidant, 17 parts of synergistic auxiliary agent and 4 parts of color master batch.
Further, the glass fiber is alkali-free glass fiber. The color masterbatch is preferably, but not limited to, a cabot UN2014 color masterbatch. The laser etching aid is preferably, but not limited to, laser etching aid LaserAT-7762.
Further, the inorganic filler is composed of calcium carbonate, talcum powder and silicon dioxide according to the weight ratio of 1.8:0.6: 1. The particle size of the inorganic filler is 50-150 nm.
Further, the compatilizer is a maleic anhydride grafted ethylene-octene copolymer and a maleic anhydride-ethylene-acrylate terpolymer according to a weight ratio of 1: 1. The maleic anhydride grafted ethylene-octene copolymer is preferably, but not limited to, maleic anhydride grafted ethylene-octene copolymer PC-28. The maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer is maleic anhydride acrylonitrile-butadiene-styrene VE-335K. The PC is preferably kesichun PC 3103. The ABS is Ningbo Taiji AG15E 1.
Furthermore, the antioxidant comprises antioxidant BHT, antioxidant 1010 and antioxidant 168 according to the weight ratio of 2.5:0.8: 1.
Further, each part of the synergistic auxiliary comprises the following raw materials in parts by weight: 12 parts of PVDF resin, 7 parts of vinyl tri (beta-methoxyethoxy) silane, 7 parts of ethylene propylene diene monomer, 6 parts of hydroxyethyl cellulose, 7 parts of nano titanium dioxide and 4 parts of calcium stearate.
The material for laser etching of this embodiment is adopted to make the card holder, and the writing is clear after the laser etching, and the laser etching effect is good.
The preparation method of the material for laser etching comprises the following steps: and mixing the raw materials in proportion, adding the mixture into a double-screw extruder, and performing melt extrusion granulation to obtain the material for laser engraving.
Further, the mixing step of mixing the raw materials is as follows: the raw materials are proportionally put into a high-speed stirrer and mixed for 20min at the temperature of 65 ℃ and the rotating speed of 700 RPM.
Further, the feeding speed of the double-screw extruder is 40RPM/min, and the screw rotating speed is 350 RPM. The temperature of each zone of the double-screw extruder is respectively as follows: the first interval is 210 ℃, the second interval is 220 ℃, the third interval is 230 ℃, the fourth interval is 230 ℃, the fifth interval is 220 ℃ and the sixth interval is 210 ℃.
Example 2
A material for laser etching comprises the following raw materials in parts by weight: 80 parts of PC, 8 parts of glass fiber, 8 parts of ABS resin, 12 parts of inorganic filler, 1.5 parts of laser engraving auxiliary agent, 15 parts of compatilizer, 0.5 part of antioxidant, 15 parts of synergistic auxiliary agent and 3 parts of color master batch.
Further, the inorganic filler is composed of calcium carbonate, talcum powder and silicon dioxide according to the weight ratio of 1.5:0.5: 1.
Further, the compatilizer is a maleic anhydride grafted ethylene-octene copolymer and a maleic anhydride-ethylene-acrylate terpolymer according to a weight ratio of 2: 1.
Furthermore, the antioxidant comprises antioxidant BHT, antioxidant 1010 and antioxidant 168 according to the weight ratio of 2:0.6: 1.
Further, each part of the synergistic auxiliary comprises the following raw materials in parts by weight: 10 parts of PVDF resin, 6 parts of vinyl tri (beta-methoxyethoxy) silane, 5 parts of ethylene propylene diene monomer, 5 parts of hydroxyethyl cellulose, 6 parts of nano titanium dioxide and 3 parts of calcium stearate.
The preparation method of the material for laser etching comprises the following steps: and mixing the raw materials in proportion, adding the mixture into a double-screw extruder, and performing melt extrusion granulation to obtain the material for laser engraving.
Further, the mixing step of mixing the raw materials is as follows: the raw materials are proportionally put into a high-speed stirrer and mixed for 25min at the temperature of 60 ℃ and the rotating speed of 600 RPM.
Further, the feeding speed of the twin-screw extruder is 30RPM/min, and the screw rotating speed is 300 RPM. The temperature of each zone of the double-screw extruder is respectively as follows: the temperature of the first interval is 200 ℃, the second interval is 210 ℃, the third interval is 220 ℃, the fourth interval is 220 ℃, the fifth interval is 210 ℃ and the sixth interval is 200 ℃.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
Example 3
A material for laser etching comprises the following raw materials in parts by weight: 90 parts of PC, 14 parts of glass fiber, 15 parts of ABS resin, 18 parts of inorganic filler, 3 parts of laser engraving auxiliary agent, 25 parts of compatilizer, 2 parts of antioxidant, 22 parts of synergistic auxiliary agent and 7 parts of color master batch.
Further, the inorganic filler is composed of calcium carbonate, talcum powder and silicon dioxide according to the weight ratio of 2:1: 1.
Further, the compatilizer is a maleic anhydride grafted ethylene-octene copolymer and a maleic anhydride-ethylene-acrylate terpolymer according to a weight ratio of 1.5: 1.
Furthermore, the antioxidant comprises antioxidant BHT, antioxidant 1010 and antioxidant 168 according to the weight ratio of 3:1.2: 1.
Further, each part of the synergistic auxiliary comprises the following raw materials in parts by weight: 15 parts of PVDF resin, 9 parts of vinyl tri (beta-methoxyethoxy) silane, 8 parts of ethylene propylene diene monomer, 8 parts of hydroxyethyl cellulose, 10 parts of nano titanium dioxide and 6 parts of calcium stearate.
The preparation method of the material for laser etching comprises the following steps: and mixing the raw materials in proportion, adding the mixture into a double-screw extruder, and performing melt extrusion granulation to obtain the material for laser engraving.
Further, the mixing step of mixing the raw materials is as follows: the raw materials are proportionally put into a high-speed stirrer and mixed for 15min at the temperature of 70 ℃ and the rotating speed of 800 RPM.
Further, the feeding speed of the double-screw extruder is 50RPM/min, and the screw rotating speed is 400 RPM. The temperature of each zone of the double-screw extruder is respectively as follows: the first interval is 220 ℃, the second interval is 230 ℃, the third interval is 240 ℃, the fourth interval is 240 ℃, the fifth interval is 230 ℃ and the sixth interval is 220 ℃.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
Example 4
A material for laser etching comprises the following raw materials in parts by weight: 86 parts of PC, 12 parts of glass fiber, 10 parts of ABS resin, 16 parts of inorganic filler, 2.5 parts of laser engraving auxiliary agent, 18 parts of compatilizer, 1.5 parts of antioxidant, 19 parts of synergistic auxiliary agent and 4 parts of color master batch.
Further, each part of the synergistic auxiliary comprises the following raw materials in parts by weight: 13 parts of PVDF resin, 7 parts of vinyl tri (beta-methoxyethoxy) silane, 6 parts of ethylene propylene diene monomer, 7 parts of hydroxyethyl cellulose, 7 parts of nano titanium dioxide and 5 parts of calcium stearate.
The preparation method of the material for laser etching comprises the following steps: and mixing the raw materials in proportion, adding the mixture into a double-screw extruder, and performing melt extrusion granulation to obtain the material for laser engraving.
Further, the mixing step of mixing the raw materials is as follows: the raw materials are proportionally put into a high-speed stirrer and mixed for 20min at the temperature of 65 ℃ and the rotating speed of 650 RPM.
Further, the feeding speed of the twin-screw extruder is 35RPM/min, and the screw rotating speed is 350 RPM. The temperature of each zone of the double-screw extruder is respectively as follows: the temperature of the reaction solution is 205 ℃ in the first interval, 215 ℃ in the second interval, 225 ℃ in the third interval, 230 ℃ in the fourth interval, 215 ℃ in the fifth interval and 205 ℃ in the sixth interval.
The rest of this embodiment is the same as embodiment 1, and is not described herein again.
Comparative example 1
This comparative example differs from example 1 above in that: the synergist of this comparative example does not contain PVDF resin, and the same amount of PC is used instead of PVDF resin in example 1, and this comparative example does not contain hydroxyethyl cellulose and vinyltris (. beta. -methoxyethoxy) silane. The remainder of this comparative example is the same as example 1 and will not be described again here.
The materials for laser etching prepared in examples 1 to 4 and comparative example 1 were subjected to performance tests, and the test results are shown in the following table:
carrying out thermal oxidation aging test on the materials for laser etching prepared in examples 1-4 and comparative example 1 according to GB/T7141-2008; the ultraviolet aging test was carried out in accordance with ASTM G154-2006, the flexural strength and tensile strength before and after thermal oxidative aging and ultraviolet aging were measured respectively and the retention after aging of each property was calculated. Tensile strength and flexural strength were according to ASTM D638 and ASTM D790, respectively.
The tensile strength test results before aging test, after thermal oxidative aging and after ultraviolet aging were as follows:
the results of the flexural strength test before aging test, after thermal oxidative aging and after ultraviolet aging were as follows:
examples 1-4 and comparative example 1 notched Izod impact Strength at 23 ℃ according to ASTM D256 was determined as follows:
the material for laser etching has good bending strength, tensile strength, notch impact strength and aging resistance, and has good etching effect, clear patterns and writing and long service life when the laser etching is carried out; the preparation method of the material is simple and convenient to operate, easy to control, high in production efficiency, stable in quality of the prepared product and beneficial to industrial mass production.
The above-described embodiments are preferred implementations of the present invention, and the present invention may be implemented in other ways without departing from the spirit of the present invention.
Claims (10)
1. A material for laser etching is characterized in that: the feed comprises the following raw materials in parts by weight: 80-90 parts of PC, 8-14 parts of glass fiber, 8-15 parts of ABS resin, 12-18 parts of inorganic filler, 1.5-3 parts of laser engraving auxiliary agent, 15-25 parts of compatilizer, 0.5-2 parts of antioxidant, 15-22 parts of synergistic auxiliary agent and 3-7 parts of color master batch.
2. The material for laser etching according to claim 1, wherein: the inorganic filler is at least one of calcium carbonate, talcum powder and silicon dioxide.
3. The material for laser etching according to claim 1, wherein: the particle size of the inorganic filler is 50-150 nm.
4. The material for laser etching according to claim 1, wherein: the compatilizer is at least one of maleic anhydride grafted ethylene-octene copolymer and maleic anhydride-ethylene-acrylate terpolymer.
5. The material for laser etching according to claim 1, wherein: the antioxidant is at least one of antioxidant BHT, antioxidant 1010, antioxidant 1076 and antioxidant 168.
6. The material for laser etching according to claim 1, wherein: each part of the synergistic auxiliary comprises the following raw materials in parts by weight: 10-15 parts of PVDF resin, 6-9 parts of vinyl tri (beta-methoxyethoxy) silane, 5-8 parts of ethylene propylene diene monomer, 5-8 parts of hydroxyethyl cellulose, 6-10 parts of nano titanium dioxide and 3-6 parts of calcium stearate.
7. A method for preparing the material for laser etching according to any one of claims 1 to 6, wherein the method comprises the following steps: the method comprises the following steps: and mixing the raw materials in proportion, adding the mixture into a double-screw extruder, and performing melt extrusion granulation to obtain the material for laser engraving.
8. The method for preparing a material for laser etching according to claim 7, wherein: the mixing steps of mixing the raw materials are as follows: proportionally putting the raw materials into a high-speed stirrer, and mixing at 60-70 ℃ and at 600-800RPM for 15-25 min.
9. The method for preparing a material for laser etching according to claim 7, wherein the method comprises the following steps: the feeding speed of the double-screw extruder is 30-50RPM, and the screw rotating speed is 300-400 RPM.
10. The method for preparing a material for laser etching according to claim 7, wherein the method comprises the following steps: the temperature of each zone of the double-screw extruder is respectively as follows: the first region is 200-.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113801400A (en) * | 2021-09-24 | 2021-12-17 | 东莞市众一新材料科技有限公司 | Colorful laser etching composite material and preparation method thereof |
| CN113845744A (en) * | 2021-10-25 | 2021-12-28 | 金发科技股份有限公司 | Color marking laser marking material with noctilucent effect and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113801400A (en) * | 2021-09-24 | 2021-12-17 | 东莞市众一新材料科技有限公司 | Colorful laser etching composite material and preparation method thereof |
| CN113845744A (en) * | 2021-10-25 | 2021-12-28 | 金发科技股份有限公司 | Color marking laser marking material with noctilucent effect and application thereof |
| CN113845744B (en) * | 2021-10-25 | 2023-11-03 | 金发科技股份有限公司 | Color marking laser marking material with noctilucent effect and application thereof |
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Application publication date: 20210518 |
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