CN107936457A - Short fine reinforced ABS alloy material of a kind of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard and preparation method thereof - Google Patents
Short fine reinforced ABS alloy material of a kind of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard and preparation method thereof Download PDFInfo
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- CN107936457A CN107936457A CN201711195124.XA CN201711195124A CN107936457A CN 107936457 A CN107936457 A CN 107936457A CN 201711195124 A CN201711195124 A CN 201711195124A CN 107936457 A CN107936457 A CN 107936457A
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- mechanical keyboard
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses short fine reinforced ABS alloy material of a kind of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard and preparation method thereof, its key points of the technical solution are that：It is composed of the following components by weight percentage：PBT15%~44.5%, ABS30%~53.5%, PMMA10%~20%, compatilizer 3%~5%, antioxidant 0.2%~0.6%, lubricant 0.2%~0.6%, scraping-resistant agent 3%~5% is short by fine 0~20%, laser carving auxiliary agent 1%~2%.A kind of short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard of the present invention, solve polyamides and strengthen modified, oil resistivity is bad, surface gloss is poor, hydraulic performance decline after long-time service, it is of high cost, friction coefficient is high the problems such as.
Description
【Technical field】
The invention belongs to polymeric material field, specifically a kind of scratch-resistant low gloss oil resistant for mechanical keyboard
With the short fine reinforced ABS alloy material of laser carving and preparation method thereof.
【Background technology】
Polybutylene terephthalate (PBT) (abbreviation PBT) has excellent chemical proofing, good weatherability and excellent
Different processing fluidity etc., but its poor toughness, shrinking percentage is big, poor dimensional stability, and buckling deformation easily occurs after shaping, also has it
Contain ester group in strand, easily hydrolyzed under high temperature.Acrylonitrile-butadiene-styrene copolymer (abbreviation ABS) has high lack
Mouth impact strength, good chemical proofing, excellent dimensional stability, good processing forming and excellent coloring
Deng, but its weatherability is poor.Polymethyl methacrylate (abbreviation PMMA) has high case hardness, excellent weatherability, but its
Containing ester group in strand, water absorption rate is larger, has obvious Room Temperature Creep, also has its melt viscosity higher, and rigidity is larger,
It is also easy to produce stress cracking.The advantages of ABS/PBT/PMMA alloy material combination threes, have good scratch resistance, good resistance to
Hou Xing, good oil resistivity, excellent processing fluidity and preferable dimensional stability etc..
The common mechanical keyboard material of in the market has HIPS, ABS, PC and PC/ABS alloy etc..The success of in the market PBT material
With seldom on mechanical keyboard material.The mechanical keyboard material that HIPS and ABS are done have excellent processing forming, well
Appearance and excellent dimensional stability, but its weatherability is very poor, scratch resistance is poor, service life is short and easy hair oil etc..PC
The mechanical keyboard material done with PC/ABS alloys has preferable scratch resistance, an excellent dimensional stability, but its weatherability compared with
Difference, oil resistivity are poor and appearance is poor etc..The keyboard material that PBT is done has excellent processing forming, good appearance and good
Good oil resistivity, but its dimensional stability is poor, it is poor etc. with scratch-resistant to be easily deformed.It is impossible to meet to scratch resistance for these materials
Wipe the need of high requirement, oil resistivity requirement height, the mechanical keyboard that appearance requirement is high and service life requirement is long or gamepad material
Ask.
【The content of the invention】
A kind of short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard of the present invention,
Solve polyamides and strengthen modified, oil resistivity is bad, surface gloss is poor, hydraulic performance decline, of high cost, friction after long-time service
The problems such as coefficient is high.
It is a further object of the present invention to provide a kind of short fine increasing of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard
The preparation method of strong ABS alloy material.
The present invention is achieved by the following technical solutions：
A kind of short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard, by weight hundred
Divide than composed of the following components：
Preferably, the polybutylene terephthalate (PBT) is Nantong stars, 1100A, melt index 27g/10min.
Selecting compared with high fusion index PBT, can increase the processing fluidity of material.
Preferably, the acrylonitrile-butadiene-styrene copolymer for Liaoning brocade China or Shanghai Gaoqiao, 275, dumb light,
Melt index is 12.5g/10min；Zhenjiang is very beautiful, 757K, high glaze, melt index 22g/10min.
Preferably, the polymethyl methacrylate is very beautiful for Taiwan, CM-211, melt index 16g/10min.
Preferably, the compatilizer is acrylonitrile-butadiene-styrene copolymer grafted maleic anhydride, and Shenyang section leads to,
KT-3, maleic anhydride grafting ratio are 10%~12%；Styrene-maleic anhydride copolymer, magnificent cloud tints electronics new material, SMA-700,
Maleic anhydride grafting ratio is a kind of in being 18%.
Preferably, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters
(1010) or β-positive octadecanol ester (1076) of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid and three (2,4- di-tert-butyls
Base) phosphite ester (168) press 1:2 compoundings.
Preferably, the lubricant is Degussa, E525.
Preferably, the scraping-resistant agent is polysiloxanes, middle indigo plant morning twilight, GM100A.
Preferably, the short fibre is short glass fiber, Mount Taishan, 10~13 μm of fibre diameter, chopped length 3.0~
4.5mm。
Preferably, the laser carving auxiliary agent moistens for the black white laser carving auxiliary agent of carving, and fine jade, HZ-889；Black laser carving auxiliary agent is carved in vain, greatly
Zhan Jiyuan, Laser AT-638P.
A kind of preparation side of the short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard
Method, comprises the following steps：
(1), first the polybutylene terephthalate (PBT) 15%~45% weighed up, acrylonitrile-butadiene-styrene (ABS) are copolymerized
Thing 15%~55%, polymethyl methacrylate 10%~20%, compatilizer 3%~5%, 0.2%~0.5% and of antioxidant
Lubricant 0.4%~0.7% is added in high-speed mixer, mixes 1~2min, then by the scraping-resistant agent 3%~5% weighed up, short by fine 0
~20% and laser carving auxiliary agent 1%~4% be added in above-mentioned uniformly mixed material, mix 1~2min；
(2), finally uniformly mixed material is added in the hopper of double screw extruder, the double screw extruder
Processing temperature is 210~240 DEG C, and screw speed is 35~40 rpm/min, after double screw extruder melting extrusion and through water
Cold, air-dried, Qie La and packaging.
Compared with prior art, the invention has the advantages that：
A kind of short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard of the present invention,
With good scratch resistance, good weatherability, good oil resistivity, preferable dimensional stability, excellent machine-shaping
Property, longer life, good appearance, relatively low glossiness and good laser carving effect etc., disclosure satisfy that mechanical keyboard
Or requirement and the automated production requirement of gamepad；
【Embodiment】
1~6 pair of a kind of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard of the invention in conjunction with specific embodiments
The preparation method of short fibre reinforced ABS alloy material further illustrates：
Table 1：Raw material and auxiliary agent are by weight percentage
Comparative example 1, its preparation method includes the following steps：
First by table 1 by the polybutylene terephthalate (PBT) weighed up (1100A), acrylonitrile-butadiene-styrene copolymer
(275) it is added to compatilizer (KT-3) in high-speed mixer, mixes 1~2 min, then the antioxidant (1010/168=that will be weighed up
1:2), lubricant (E525) and scraping-resistant agent (GM100A) are added in above-mentioned uniformly mixed material, mix 1~2min, finally will
Uniformly mixed material is added to melting extrusion in double screw extruder hopper, and each section of temperature of double screw extruder is：1 area's temperature is
100℃；2 area's temperature are 240 DEG C；3 area's temperature are 235 DEG C；4 area's temperature are 220 DEG C；5 area's temperature are 230 DEG C；Die head temperature is
240 DEG C, the screw speed of double screw extruder is 38rpm, and the product that comparative example 1 produces is denoted as A1.
Comparative example 2~3, its preparation method includes the following steps：
First by table 1 by the polybutylene terephthalate (PBT) weighed up (1100A), acrylonitrile-butadiene-styrene copolymer
(275), polymethyl methacrylate (CM-211) and compatilizer (KT-3) are added in high-speed mixer, mix 1~2min, then
Antioxidant (the 1010/168=1 that will be weighed up:2), lubricant (E525) and scraping-resistant agent (GM100A) are added to above-mentioned uniformly mixed
In material, 1~2min is mixed, uniformly mixed material is finally added to melting extrusion in double screw extruder hopper, twin-screw
Each section of temperature of extruder be：1 area's temperature is 100 DEG C；2 area's temperature are 240 DEG C；3 area's temperature are 235 DEG C；4 area's temperature are 220 DEG C；
5 area's temperature are 230 DEG C；Die head temperature is 240 DEG C, and the screw speed of double screw extruder is 38rpm, what comparative example 2~3 produced
Product is denoted as A2~A3 respectively.
Embodiment 1, its preparation method includes the following steps：
First by table 1 by the polybutylene terephthalate (PBT) weighed up (1100A), acrylonitrile-butadiene-styrene copolymer
(757K), polymethyl methacrylate (CM-211), compatilizer (KT-3), antioxidant (1010/168=1:And lubricant 2)
(E525) it is added in high-speed mixer, mixes 1~2 min, then the scraping-resistant agent weighed up (GM100A) and short fine (T435N) are added to
In above-mentioned uniformly mixed material, 1~2min is mixed, finally uniformly mixed material is added in double screw extruder hopper and is melted
Melt extrusion, each section of temperature of double screw extruder is：1 area's temperature is 100 DEG C；2 area's temperature are 240 DEG C；3 area's temperature are 235 DEG C；4
Area's temperature is 220 DEG C；5 area's temperature are 230 DEG C；Die head temperature is 240 DEG C, and the screw speed of double screw extruder is 38rpm, real
The product for applying the production of example 1 is denoted as B1.
Embodiment 2~3, its preparation method includes the following steps：
First by table 1 by the polybutylene terephthalate (PBT) weighed up (1100A), acrylonitrile-butadiene-styrene copolymer
(275), polymethyl methacrylate (CM-211), compatilizer (KT-3), antioxidant (1010/168=1:And lubricant 2)
(E525) it is added in high-speed mixer, mixes 1~2 min, then the scraping-resistant agent weighed up (GM100A) and short fine (T435N) are added to
In above-mentioned uniformly mixed material, 1~2min is mixed, finally uniformly mixed material is added in double screw extruder hopper and is melted
Melt extrusion, each section of temperature of double screw extruder is：1 area's temperature is 100 DEG C；2 area's temperature are 240 DEG C；3 area's temperature are 235 DEG C；4
Area's temperature is 220 DEG C；5 area's temperature are 230 DEG C；Die head temperature is 240 DEG C, and the screw speed of double screw extruder is 38rpm, real
The product for applying the production of example 2~3 is denoted as B2~B3 respectively.
Embodiment 4, its preparation method includes the following steps：
First by table 1 by the polybutylene terephthalate (PBT) weighed up (1100A), acrylonitrile-butadiene-styrene copolymer
(275), polymethyl methacrylate (CM-211), compatilizer (KT-3), antioxidant (1010/168=1:And lubricant 2)
(E525) it is added in high-speed mixer, mixes 1~2 min, then the scraping-resistant agent weighed up (GM100A), short fibre is (T435N) and black
Carve white laser carving auxiliary agent (HZ-889) to be added in above-mentioned uniformly mixed material, mix 1~2min, finally by uniformly mixed thing
Material is added to melting extrusion in double screw extruder hopper, and each section of temperature of double screw extruder is：1 area's temperature is 100 DEG C；2 area's temperature
Spend for 240 DEG C；3 area's temperature are 235 DEG C；4 area's temperature are 215 DEG C；5 area's temperature are 215 DEG C；6 area's temperature are 220 DEG C；7 area's temperature
For 225 DEG C；8 area's temperature are 230 DEG C；Die head temperature is 240 DEG C, and the screw speed of double screw extruder is 38 rpm, embodiment
The product of 4 productions is denoted as B4.
Embodiment 5, its preparation method includes the following steps：
First by table 1 by the polybutylene terephthalate (PBT) weighed up (1100A), acrylonitrile-butadiene-styrene copolymer
(275), polymethyl methacrylate (CM-211), compatilizer (KT-3), antioxidant (1010/168=1:And lubricant 2)
(E525) it is added in high-speed mixer, mixes 1~2 min, then by the scraping-resistant agent weighed up (GM100A), short fine (T435N) and in vain
Carve black laser carving auxiliary agent (Laser AT-638P) to be added in above-mentioned uniformly mixed material, mix 1~2min, will finally mix equal
Even material is added to melting extrusion in double screw extruder hopper, and each section of temperature of double screw extruder is：1 area's temperature is 100 DEG C；
2 area's temperature are 240 DEG C；3 area's temperature are 235 DEG C；4 area's temperature are 220 DEG C；5 area's temperature are 230 DEG C；Die head temperature is 240 DEG C,
The screw speed of double screw extruder is 38rpm, and the product that embodiment 5 produces is denoted as B5.
The product that comparative example 1~3 and embodiment 1~5 are produced is tested for the property, test result is as Table 2,3：
Table 2：The performance test results of product A1~A3
Table 3：The performance test results of product B1~B5
It can be seen that from table 2 and table 3：The performance of product A2 adds the scratch resistance of the product of PMMA compared with product A1
Wipe performance ratio and do not add getting well much for PMMA, the scratch of product A2 institutes injection molding machinery keyboard can be wiped completely, can
To be tested by 5,000,000 scratch-resistants of mechanical keyboard button；Compared with product A2, PBT contents improve the performance of product A3,
The processing fluidity of ABS/PBT/PMMA alloy materials improves, and mechanical property, heat distortion temperature and scraping and wiping resistance performance change are little,
But shrinking percentage becomes larger, dimensional stability reduces, and is easily deformed；The performance of product B2 increases short fibre compared with product A2,
The rigidity raising of ABS/PBT/PMMA alloy materials, notch impact strength reduce, and scraping and wiping resistance performance is slightly lifted, and also has mechanical keys
The easily broken mouth of a river of disk full keyboard button and mouth of a river burr is very short, disclosure satisfy that mechanical keyboard full keyboard button automated production requirement；
For the performance of product B2 compared with the performance of product B1, dumb light ABS material replaces high-light ABS material, prepared short fine enhancing
The glossiness of ABS/PBT/PMMA alloy materials is relatively low, disclosure satisfy that mechanical keyboard requires relatively low need to the glossiness of material
Ask；The performance of product B3 improves the content of PMMA compared with product B2, and short fibre reinforced ABS/PBT/PMMA alloy materials are beaten
Mechanical keyboard button be also easy to produce weld bond, improve short fine content, the floating fibre of short fibre reinforced ABS/PBT/PMMA alloy materials
Increase, improve mold temperature and also be difficult to eliminate the weld bond of mechanical keyboard button and floating fibre；The performance and product B2 of product B4, B5
Compare, add laser carving auxiliary agent, laser carving character is clear and character color is met the requirements, and can replace mechanical keyboard button silk-screen work
Sequence, meets environmental requirement.
The short fine reinforced ABS alloy of a kind of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard prepared by the present invention
Material, has good scratch resistance, good weatherability, good oil resistivity, preferable dimensional stability, excellent processing
Mouldability, longer life, good appearance, relatively low glossiness and good laser carving effect etc., and disclosure satisfy that machine
Tool keyboard full keyboard button automated production requirement.
In conclusion being presently preferred embodiments of the present invention, all changes according to made by technical solution of the present invention are caused
When function is failed beyond the scope of technical solution of the present invention, protection scope of the present invention is belonged to.
Claims (10)
- A kind of 1. short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard, it is characterised in that Including following components by weight percent：
- 2. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The polybutylene terephthalate (PBT) melt index 27g/10min.
- 3. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The copolymerization of acrylonitrile-butadiene-styrene index 12.5g/10min.
- 4. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The polymethyl methacrylate melt index 16g/10min.
- 5. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The compatilizer is acrylonitrile-butadiene-styrene copolymer grafted maleic anhydride or benzene second Alkene-copolymer-maleic anhydride.
- 6. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol esters (1010) or β-positive octadecanol ester (1076) of (3,5- di-tert-butyl-hydroxy phenyls) propionic acid and three (2,4- di-tert-butyls Base) phosphite ester (168) press 1:2 compoundings.
- 7. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The lubricant is anti-glass emergence on the surface agent, and the scraping-resistant agent is polysiloxanes.
- 8. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The short fibre is short glass fiber, 10~13 μm of fibre diameter, chopped length 3.0~ 4.5mm。
- 9. a kind of short fine reinforced ABS of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard is closed according to claim 1 Golden material, it is characterised in that：The laser carving auxiliary agent is white or carve black laser carving powder or laser carving master batch in vain for black carving.
- 10. a kind of preparation method of the short fine reinforced ABS alloy material of scratch-resistant low gloss oil resistant and laser carving for mechanical keyboard, It is characterized by comprising following steps：(1), polybutylene terephthalate (PBT) 15%~45%, the acrylonitrile-butadiene-styrene copolymer that will first weigh up 15%~55%, polymethyl methacrylate 10%~20%, compatilizer 3%~5%, antioxidant 0.2%~0.5% and lubrication Agent 0.4%~0.7% is added in high-speed mixer, mix 1~2min, then by the scraping-resistant agent 3%~5% weighed up, it is short by fine 0~ 20% and laser carving auxiliary agent 1%~4% be added in above-mentioned uniformly mixed material, mix 1~2min；(2), finally uniformly mixed material is added in the hopper of double screw extruder, the processing of the double screw extruder Temperature is 210~240 DEG C, and screw speed is 35~40rpm/min, after double screw extruder melting extrusion and water cooled, wind Dry, Qie La and packaging.
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| CN114806101A (en) * | 2021-12-22 | 2022-07-29 | 广东美塑塑料科技有限公司 | Laser etching PBT material for keycaps and preparation method thereof |
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Application publication date: 20180420 |