CN109354855A - It is a kind of can laser color label rigid plastics - Google Patents
It is a kind of can laser color label rigid plastics Download PDFInfo
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- CN109354855A CN109354855A CN201811243379.3A CN201811243379A CN109354855A CN 109354855 A CN109354855 A CN 109354855A CN 201811243379 A CN201811243379 A CN 201811243379A CN 109354855 A CN109354855 A CN 109354855A
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
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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
- C08K2201/011—Nanostructured additives
-
- 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
Abstract
The invention discloses it is a kind of can laser color label rigid plastics, prepare and contain graphene and Heat Conduction Material in raw material；The graphene can convert thermal energy for the part luminous energy in laser irradiation process as a kind of optical-thermal conversion material, make laser that can still generate clearly indicia patterns on the rigid plastics；The Heat Conduction Material can make the heat distribution uniform of high concentration, thus keep the pattern edge of laser labelling clean and tidy, high resolution.
Description
Technical field
The invention belongs to polymeric material fields, and in particular to it is a kind of can laser color label rigid plastics.
Background technique
Plastics are a kind of artificial macromolecular organic compounds of plasticity, single due to can choose crosslinking in the synthesis process
Various functional aids are added or are not added in the type and quantity of body, or selection, so that plastics are plastic under heating, pressurized conditions
The device of various hardness and shape is made, therefore, plastics are widely used in aerospace, medical instrument, petrochemical industry, machinery
The all trades and professions such as manufacture, national defence, building.Plastics can be divided into three classes according to hardness: rigid plastics, semi-rigid plastic and soft modeling
Material.Wherein, rigid plastics has PP type, acrylonitrile-butadiene-styrene copolymer, polystyrene resin, polyformaldehyde tree
Rouge, polymethyl methacrylate, polycarbonate, polybutylene terephthalate (PBT) resin, polyethylene terephthalate tree
Rouge etc..Rigid plastics generally refers to thermosetting plastics, with that can not process use after pressure sintering machine-shaping again, in general firmly
Matter plastics are raw plastics, and harder, durability is general.But since its quality is hard, electricity is made by modified in usual duroplasts
Device insulating part, bearing, bearing shell, instrument building, electronic component, chemical industry equipment structural member etc..When plastics are processed into above-mentioned member
It generally requires to carry out some labels, such as product type on surface after part.In addition, part machine component is in order to specious, easily
Approved by consumer, it is also necessary to carry out the label of multicolour pattern.With the strict demand to product indices, label at
For an industrial important link.Currently, the method for label mainly includes silk-screen, bat printing, spraying, engraving, laser marking
Etc. modes.Compared to conventional tag technology, laser marking labelling technique has unique superiority in various aspects.
Laser marking is developed after the application technologies such as laser welding, laser heat treatment, laser cutting, laser boring
The New Processing come is a kind of new marking process non-contact, pollution-free, without abrasion.Laser marking is to utilize height
The laser beam of energy density makes the variation of target surface generation physically or chemically, to obtain visible pattern to interacting goals
Mark mode.The laser beam focus of high-energy on the surface of the material on, make material rapid vaporization, form the pattern of specific shape.
Laser marking has a clear advantage compared with traditional marking process: 1, laser labelling will not subside because of environmental concerns, wear-resisting
Property is good；2, it is not easy imitated using the label that laser marking technology carves out and changes, has to a certain extent very strong anti-
Puppet 3, laser marking are processed with the light-knife of non-mechanical, can it is any rule or irregular surface franking, and
Internal stress will not be generated to workpiece after mark, guarantee original precision of workpiece, corrosiveness is not generated to workpiece surface；4, laser
Mark speed is fast and marks one-pass molding, and energy consumption is small, and operating cost is low；5, laser marking speed is fast, and mark process can be in the several seconds
Interior completion, saves the time.
Although laser marking has many good qualities, mark has certain limitation on rigid plastics.Because hard is moulded
Expect that surface is hard, even CO2Laser can only also generate in rigid plastic surface and compare in the very high situation of output power
Label that is fuzzy, can hardly identifying.Therefore, it is urgently to be resolved for improving feasibility of the laser marking in rigid plastics material
Problem.
Patent document CN101927626A discloses a kind of master batch with function of plastic laser marking, which includes: light
Quick dose of 10-25%, white pigment 10-15%, black pigment 20-30%, organic polymer carrier 38.5%-53.5%, it is described
Organic polymer carrier is preferably PP type plastics, and the inventive point of this application is to be added in masterbatch preparation process photosensitive
Agent LS, photosensitizer LS have strong absorption to the laser of 10.64 mum wavelengths, generate heat after effect absorbs laser beam energy
Can, release thermal energy makes surface black pigment become gas evaporation to expose deep layer white pigment, thus in black polypropylene class
Frosting generates the strong white writing or pattern of comparison.Firstly, the photosensitizer LS mentioned in this application is rareer, price
It is expensive.In addition, the efficiency when photosensitizer is excessively high, and in the very high situation of additive amount, it be easy to cause the patterned sides of laser labelling
The phenomenon that edge is unclear, and resolution ratio is low, and indicia patterns quality declines.
Patent document CN106566068A disclose it is a kind of can laser color label polymer composition, the patent is in group
It closes and is added to 0.05-2 parts of laser marking powder and 0.1-10 parts of warming substance in object, the heat generated during laser marking
It can make warming substance that the reactions such as thermal decomposition, oxidation occur at a certain temperature, these reactions destroy the starting substance structure or life
At a kind of novel substance, while generating a kind of new color, this color change be it is unidirectional, it is irreversible, cannot after cooling
Restore primary colors, thus stable permanent marks can be formed on product.Warming substance of the present invention is in phthalocyanine pigment
At least one, those skilled in the art will know that phthalocyanine pigment itself belongs to one of organic pigment, although may add
Occurs metachromatism under heat condition, but it is irreversible to accomplish to change colour, and stablizes non-discolouring be difficult for a long time.In addition, heating
There is also relationships for the variation degree of the control and color of heat in colourshifting process, and to be produced in batches, color is difficult to accomplish
Unanimously, technology difficulty is larger, is not suitable for high-volume industrial production.
In order to overcome the drawbacks of the prior art, both guaranteed that the pattern definition of laser labelling and resolution ratio were higher, edge is dry
It is net neat, moreover it is possible to guarantee Laser marking technology simple possible, can be used in large batch of production, in the present invention, invention
People is slightly modified with usual manner by duroplasts, is added to graphene and Heat Conduction Material in the preparation, so that laser issues
Heat can uniformly be distributed to the place that laser is radiated, keep the pattern definition of label high, neat in edge；Stone is controlled simultaneously
The additive amount of black alkene and Heat Conduction Material obtains optimum proportioning by test, so as to carry out stable industrial production.
Summary of the invention
The object of the present invention is to provide it is a kind of can laser color label rigid plastics and preparation method thereof, the hard modeling
A small amount of plasticizer is added in material during the preparation process, increases flexibility, makes rigid plastics that can be processed to device of various shapes.Separately
Outside, graphene is added during the preparation process and Heat Conduction Material, graphene can be by laser irradiation mistake as a kind of optical-thermal conversion material
Part luminous energy in journey is converted into thermal energy, makes laser that can still generate clearly indicia patterns on the harder plastics of matrix.Specially
Sharp document CN105504517A is disclosed to be used graphene as the additive of laser labelling material, and label clarity has
It is promoted.But pursuing photothermal conversion simply is not wise move, in the present invention, inventor's discovery is when an addition graphene
When, since photothermal conversion only occurs in part, causes the edge of laser labelling pattern unclean, uneven, part can be generated and burnt
Small burr after burning, largely effects on mark quality.In order to improve status, heat conduction material is added in rigid plastics process
Material, excellent heating conduction makes the heat distribution uniform of high concentration, thus keep the pattern edge of laser labelling clean and tidy, point
Resolution is high.
The purpose of the present invention is what is be achieved through the following technical solutions:
It is a kind of can laser color label rigid plastics, prepare in raw material containing graphene and Heat Conduction Material；The stone
Black alkene can convert thermal energy for the part luminous energy in laser irradiation process as a kind of optical-thermal conversion material, make laser described hard
Clearly indicia patterns can be still generated on matter plastics；The Heat Conduction Material can make the heat distribution uniform of high concentration, from
And keep the pattern edge of laser labelling clean and tidy, high resolution.
Preferably, the graphene is powdered；It is furthermore preferred that the graphene is graphene nano particle, partial size is
5-60nm；In a preferred embodiment of the invention, the partial size of the graphene nano particle is 10-15nm.
Preferably, the Heat Conduction Material is selected from: one or both of boron nitride ceramic particles, alumina ceramic grain with
On combination.
It is furthermore preferred that the partial size of the Heat Conduction Material is 1-15 μm.
In a preferred embodiment of the invention, the partial size of the Heat Conduction Material is 1-3 μm.
It is a kind of can laser color label rigid plastics, prepare raw material including following mass fraction: polycarbonate 20-40
Part, 20-30 parts of polystyrene, 10-30 parts of polyvinyl chloride, 0.5-8 parts of plasticizer, 0.1-0.2 parts of initiator, graphene 0.1-3
Part, 1-4 parts of Heat Conduction Material, 0.1-1 parts of black pigment, 0.1-3 parts of color pigment, 0.03-0.3 parts of antioxidant, lubricant 0.1-
0.5 part, 0-10 parts of filler.
Preferably, accounting of the graphene in rigid plastics is 0.1%-1%, and the Heat Conduction Material is in rigid plastics
In accounting be 1.5%-10%.
It is furthermore preferred that the mass ratio of the graphene and Heat Conduction Material is 1:10-40.
In a preferred embodiment of the invention, the mass ratio of the graphene and Heat Conduction Material is 1:10-20.
In the present invention, the plasticiser is selected from: dioctyl phthalate, BBP(Butyl Benzyl Phthalate, O-phthalic
The combination of one or more of sour di-sec-octyl.
The initiator is selected from: benzoyl peroxide or lauroyl peroxide.
The black pigment is preferably carbon black, and the carbon black is divided into furnace black, channel black, pyrolytic carbon according to preparation method
Black, lampblack, channel black etc. are divided into acetylene black, Ketjen black, glossy black, jet-black etc. according to raw material difference, in the present invention, described black
Color pigment is selected from the combination of one or more of above-mentioned carbon black.
The color pigment can be inorganic pigment, organic pigment, dyestuff, in the present invention the color pigment be preferably
Organic pigment, including azo pigment, phthalocyanine pigment, quinacridone-type pigments and color lake class pigment, specifically, the colour
Pigment is selected from: acetanilide, beta naphthal, pyrazolone, 2- hydroxyl -3- naphthoic acid, 2- hydroxyl -3- naphthalene formyl aromatic amine, different
One or more of the red combination of indolinone, phthalocyanine blue, phthalocyanine.
The oxidant is selected from: pentaerythritol ester and phosphite ester, and the two mass parts ratio is 1:1-2.
The lubricant is selected from: pentaerythritol stearate.
The filler is selected from: one of glass fibre, bead, calcium carbonate, talcum powder, barium sulfate, kaolin, clay
Or two or more combination.
Color laser marker color of the present invention is determined that the laser labelling can be to appoint by the type of color pigment
Pattern, text, two dimensional code, the bar code etc. of what shape.
It is a kind of can laser color label rigid plastics preparation method, include the following steps:
(1) a certain proportion of polycarbonate, polystyrene, polyvinyl chloride, plasticizer and graphene are put into high mixer
It is uniformly mixed, adds Heat Conduction Material, black pigment, color pigment and initiator and be uniformly mixed, be eventually adding antioxidant and profit
Lubrication prescription is continuesd to mix to uniform；
(2) make above-mentioned steps mix after material material enter double screw extruder, squeeze out, in an extruder between position be added fill out
Material；
(3) it is cooled down by pole chilling roller；
(4) laser labelling is carried out on the rigid plastics made from above-mentioned steps.
Preferably, in the step (2) extruder processing temperature be 210-250 DEG C, engine speed be 300-600 turn/
Minute.
Preferably, the laser of laser labelling is selected from the step (4): C02Laser marking machine, semiconductor laser mark
Machine, laser marking machine or Nd:YAG laser.
It is furthermore preferred that the laser is selected from C02Laser marking machine, pulse recurrence frequency 40-80KHz, pulsewidth are
0.5-2.5us, mark speed are 20-50mm/s, and mark electric current is 8-16A.
In a preferred embodiment of the invention, the laser is selected from C02Laser marking machine, pulse recurrence frequency are
50-60KHz, pulsewidth 1-2us, mark speed are 45-50mm/s, and mark electric current is 10-13A.
It is a kind of can laser color label purposes of the rigid plastics in preparation industrial devices, the industrial devices are applied to
The fields such as aerospace, medical instrument, petrochemical industry, machine-building, national defence, building.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only section Example of the invention, rather than all.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
The preparation of 1 rigid plastics 1 of embodiment
40 parts of polycarbonate, 25 parts of polystyrene, 20 parts of polyvinyl chloride, 1 part of plasticizer phthalic acid dioctyl ester and stone
It is uniformly mixed in 0.2 part of investment high mixer of black alkene nano particle, adds 2 parts of Heat Conduction Material boron nitride ceramic particles, aluminium oxide
2 parts of ceramic particle, 0.3 part of black pigment furnace black, 2 parts of color pigment 2- hydroxyl -3- naphthalene formyl aromatic amine and initiator mistake
0.1 part of Benzoyl Oxide is uniformly mixed, and is eventually adding 0.1 part and 0.1 part of phosphite ester of antioxidant pentaerythritol ester, and lubrication
0.4 part of agent pentaerythritol stearate stirs evenly；Above-mentioned material is transferred in double screw extruder, extruder processing temperature
Be 250 DEG C, engine speed be 500 revs/min, squeeze out, in an extruder between position be added 1 part of talcum powder.Then by extremely cold
Roller is cooled down to obtain rigid plastics.Use C02Laser marking machine progress laser labelling, laser pulse repetition frequency 60KHz,
Pulsewidth is 1us, and mark speed is 50mm/s, and mark electric current is 12A.
The preparation of 1 rigid plastics 2 of comparative example
Compared with Example 1, difference is not add Heat Conduction Material in rigid plastics preparation process, remaining component and
Preparation method is same as Example 1.Use C02Laser marking machine carries out laser labelling, and laser pulse repetition frequency is
60KHz, pulsewidth 1us, mark speed are 50mm/s, and mark electric current is 12A.
The preparation of 2 rigid plastics 3 of comparative example
Compared with Example 1, difference is not adding graphene nano particle in rigid plastics preparation process, remaining group
Divide and preparation method is same as Example 1.Use C02Laser marking machine carries out laser labelling, and laser pulse repetition frequency is
60KHz, pulsewidth 1us, mark speed are 50mm/s, and mark electric current is 12A.
The preparation of 3 hard material 4 of comparative example
Compared with Example 1, difference is not adding graphene nano particle in rigid plastics preparation process and lead
Hot material, remaining component and preparation method are same as Example 1.Use C02Laser marking machine carries out laser labelling, laser arteries and veins
Rushing repetition rate is 60KHz, and pulsewidth 1us, mark speed is 50mm/s, and mark electric current is 12A.
The influence of 1 graphene nano particle of Contrast on effect example and Heat Conduction Material to laser labelling effect
After rigid plastics prepared by embodiment 1 and comparative example 1-3 is carried out laser labelling, compare the effect of laser labelling
Fruit, as shown in the table.
The influence of 1 graphene nano particle of table and Heat Conduction Material to laser labelling effect
According to above-mentioned comparing result can be seen that when in rigid plastics containing only graphene nano particle without Heat Conduction Material
When, it may appear that amount of localized heat is higher, although indicia patterns are that clearly, pattern edge is irregular, icon indicia is caused to be imitated
Fruit decline；When containing only Heat Conduction Material without graphene nano particle, laser mark efficiency on rigid plastics is lower, identical
It will appear dim design phenomenon under power condition；And when only graphene nano particle and Heat Conduction Material add simultaneously,
The clarity of indicia patterns is good, neat in edge, high resolution, marks excellent effect.
The preparation of 2 rigid plastics 5 of embodiment
Compared with Example 1, difference is that 0.3 part of graphene nano particle is added during preparing rigid plastics,
2 parts of Heat Conduction Material boron nitride ceramic particles, 1 part of alumina ceramic grain, remaining component and preparation method with 1 phase of embodiment
Together.Use C02Laser marking machine carries out laser labelling, and laser parameter is same as Example 1.
The preparation of 3 rigid plastics 6 of embodiment
Compared with Example 1, difference is that 0.1 part of graphene nano particle is added during preparing rigid plastics,
2 parts of Heat Conduction Material boron nitride ceramic particles, 2 parts of alumina ceramic grain, remaining component and preparation method with 1 phase of embodiment
Together.Use C02Laser marking machine carries out laser labelling, and laser parameter is same as Example 1.
The preparation of 4 rigid plastics 7 of embodiment
Compared with Example 1, difference is that 3 parts of graphene nano particle are added during preparing rigid plastics, leads
0.5 part of hot material boron nitride ceramic particles, 0.5 part of alumina ceramic grain, remaining component and preparation method with 1 phase of embodiment
Together.Use C02Laser marking machine carries out laser labelling, and laser parameter is same as Example 1.
2 graphene nano particle of Contrast on effect example and Heat Conduction Material ratio are to laser labelling influential effect
After rigid plastics prepared by embodiment 1-4 carries out laser labelling, indicia patterns are compared, as a result such as following table
It is shown.
2 graphene nano particle of table and Heat Conduction Material ratio are to laser labelling influential effect
| Graphene accounting | Heat Conduction Material accounting | Graphene: Heat Conduction Material | Mark effect description | Mark effect | |
| Embodiment 1 | 0.21% | 4.25% | 1:20 | Neat in edge, high resolution | ++++++ |
| Embodiment 2 | 0.33% | 3.30% | 1:10 | Neat in edge, high resolution | ++++++ |
| Embodiment 3 | 0.11% | 4.30% | 1:40 | Neat in edge, resolution ratio are higher | +++++ |
| Embodiment 4 | 3.22% | 1.08% | 3:1 | Edge is slightly fuzzy, and resolution ratio is general | ++++ |
According to above-mentioned comparing result can be seen that accounting in rigid plastics of graphene nano particle and Heat Conduction Material and
Ratio between the two will affect the result of laser labelling.When accounting of the graphene nano particle in rigid plastics is 0.1-
0.3%, Heat Conduction Material accounting is 4.2-4.3%, and the effect of laser labelling is all fine, and content is too many or marks effect not very little
It is good；When the mass ratio of graphene nano particle and Heat Conduction Material is 1:10-40, label effect is good, and wherein mass ratio is 1:10-
Mark effect best when 20.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. one kind can laser color label rigid plastics, prepare in raw material containing graphene and Heat Conduction Material.
2. rigid plastics according to claim 1, which is characterized in that the graphene is powdered；The Heat Conduction Material
It is selected from: the combination of one or more of boron nitride ceramic particles, alumina ceramic grain.
3. rigid plastics according to claim 2, which is characterized in that the graphene is graphene nano particle, partial size
For 5-60nm；The partial size of the Heat Conduction Material is 1-15 μm.
4. rigid plastics according to claim 1 to 3, which is characterized in that the rigid plastics includes following mass parts
Several prepares raw material: 20-40 parts of polycarbonate, 10-30 parts of polyvinyl chloride, 0.5-8 parts of plasticizer, draws 20-30 parts of polystyrene
Agent 0.1-0.2 parts of hair, 1-4 parts of Heat Conduction Material, 0.1-1 parts of black pigment, 0.1-3 parts of color pigment, resists 0.1-3 parts of graphene
0.03-0.3 parts of oxygen agent, 0.1-0.5 parts of lubricant, 0-10 parts of filler.
5. rigid plastics according to claim 4, which is characterized in that accounting of the graphene in rigid plastics be
0.1%-1%, accounting of the Heat Conduction Material in rigid plastics are 1.5%-10%.
6. rigid plastics according to claim 5, which is characterized in that the mass ratio of the graphene and Heat Conduction Material is 1:
10-40。
7. rigid plastics according to claim 4, which is characterized in that the color pigment is organic pigment, including azo
Class pigment, phthalocyanine pigment, quinacridone-type pigments and color lake class pigment, specifically, the color pigment is selected from: acetyl virtue
Amine, beta naphthal, pyrazolone, 2- hydroxyl -3- naphthoic acid, 2- hydroxyl -3- naphthalene formyl aromatic amine, isoindolinone, phthalocyanine blue,
One or more of the red combination of phthalocyanine.
8. rigid plastics according to claim 4, which is characterized in that the color laser marker color is by color pigment
Type determine, the laser labelling can be any shape pattern, text, two dimensional code, bar code etc..
9. it is a kind of prepare claim 1-8 it is any it is described can laser color label rigid plastics preparation method, including such as
Lower step:
(1) a certain proportion of polycarbonate, polystyrene, polyvinyl chloride, plasticizer and graphene are put into high mixer and is mixed
Uniformly, Heat Conduction Material, black pigment, color pigment and initiator are added to be uniformly mixed, is eventually adding antioxidant and lubricant,
It continuess to mix to uniform；
(2) make above-mentioned steps mix after material material enter double screw extruder, squeeze out, in an extruder between position be added filler；
(3) it is cooled down by pole chilling roller；
(4) laser labelling is carried out on the rigid plastics made from above-mentioned steps.
10. a kind of claim 1-8 it is any it is described can laser color label use of the rigid plastics in preparation industrial devices
On the way, the industrial devices are applied to aerospace, medical instrument, petrochemical industry, machine-building, national defence, building field.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243379.3A CN109354855B (en) | 2018-10-24 | 2018-10-24 | Hard plastic capable of being marked by laser color |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243379.3A CN109354855B (en) | 2018-10-24 | 2018-10-24 | Hard plastic capable of being marked by laser color |
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| CN109354855B CN109354855B (en) | 2020-09-11 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021036899A1 (en) * | 2019-08-23 | 2021-03-04 | 江苏金发科技新材料有限公司 | Complex capable of achieving low-temperature laser marking of multiple colors and preparation method therefor |
| CN113861564A (en) * | 2021-11-18 | 2021-12-31 | 常州大学 | Organic/inorganic polypropylene composite material capable of being marked by laser and preparation method and application thereof |
| CN116218033A (en) * | 2023-01-05 | 2023-06-06 | 四川大学 | Application of organic material in preparing color-changeable polymer material |
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| CN107250275A (en) * | 2015-02-20 | 2017-10-13 | 沙特基础工业全球技术公司 | Light thermal conductive polymer composite with laser mark function |
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| US20130196123A1 (en) * | 2010-03-16 | 2013-08-01 | Basf Se | Method for marking polymer compositions containing graphite nanoplatelets |
| CN104448531A (en) * | 2014-12-29 | 2015-03-25 | 金发科技股份有限公司 | Laser etching master batch for light color identification, preparation method thereof and application |
| CN107250275A (en) * | 2015-02-20 | 2017-10-13 | 沙特基础工业全球技术公司 | Light thermal conductive polymer composite with laser mark function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021036899A1 (en) * | 2019-08-23 | 2021-03-04 | 江苏金发科技新材料有限公司 | Complex capable of achieving low-temperature laser marking of multiple colors and preparation method therefor |
| CN113861564A (en) * | 2021-11-18 | 2021-12-31 | 常州大学 | Organic/inorganic polypropylene composite material capable of being marked by laser and preparation method and application thereof |
| CN116218033A (en) * | 2023-01-05 | 2023-06-06 | 四川大学 | Application of organic material in preparing color-changeable polymer material |
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|---|---|
| CN109354855B (en) | 2020-09-11 |
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