CN108822596A - A kind of laser absorbent and its preparation method and application - Google Patents
A kind of laser absorbent and its preparation method and application Download PDFInfo
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- CN108822596A CN108822596A CN201810564983.XA CN201810564983A CN108822596A CN 108822596 A CN108822596 A CN 108822596A CN 201810564983 A CN201810564983 A CN 201810564983A CN 108822596 A CN108822596 A CN 108822596A
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- mass parts
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/32—Radiation-absorbing paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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Abstract
The invention discloses laser absorbents and its preparation method and application, the laser absorbent includes optical absorbing agent host agent, blender and solvent, the optical absorbing agent host agent includes nano carbon microsphere and carbon nanotubes, the two is used in conjunction with each other the absorptance for improving laser absorbent, in cutting device with good application prospect.Simultaneously laser absorbent of the invention when in use, under laser irradiation solvent main body can evaporating completely, it is environmentally protective, will not cause any harm to human body.
Description
Technical field
The present invention relates to cutting fields, more particularly, to a kind of laser absorbent and its preparation method and application.
Background technique
Laser heat treatment technology, which refers to, irradiates processed material using high power density laser beam, adds material quickly
Heat is to phase transition temperature, movement with light beam to material, to complete the Surface heat-treatent to material.It is most of at present to be used to swash
The knife skin that light cuts label paper can only achieve more than 30,000 meters when cutting label paper, and cutting ability and service life are all to be improved.For
It improves cutting device service life and needs to find a kind of laser absorbent and cutting device is surface-treated, cut improving product
It is improved service life while cutting performance,
Summary of the invention
In view of the deficiencies of the prior art, technical problem to be solved by the invention is to provide a kind of laser absorbent and its systems
Preparation Method and application.
The technical solution adopted by the present invention is that：
The present invention provides a kind of laser absorbent, including optical absorbing agent host agent, blender and solvent, the optical absorbing agent host agent packet
Nano carbon microsphere and carbon nanotubes are included, the blender is to the uniform dispersion optical absorbing agent host agent.
Preferably, the optical absorbing agent host agent including 1~1.8 mass parts, the blender of 3.2~5 mass parts and 10~12 mass
The solvent of part.
Preferably, the size of the optical absorbing agent host agent is 10~8000nm.
Preferably, nano carbon microsphere in the optical absorbing agent host agent：The mass ratio of carbon nanotubes is (0.2~0.36)：(0.64~
0.8).When nano carbon microsphere and carbon nanotubes configure within the scope of aforementioned proportion in optical absorbing agent host agent, the ratio table of nano carbon microsphere can be made
Area connect maximization with carbon nanotubes, so that the angle of carbon nanotubes be made to approach to zero degree, and then improves laser absorbent
Laser absorption rate.
Preferably, the blender is by including vinyl acetate, polyvinyl alcohol, dibutyl phthalate, 2- ethyl hexyl
The raw material of alcohol, ammonium persulfate and water is mixed to prepare；The solvent is water.The laser photosensitive agent coated on cutting device at present,
It mostly uses anti-plain boiled water (ethylene glycol monobutyl ether) and acetone (dimethyl ketone) ingredient as solvent main body, can be evaporated under laser irradiation
Into air, use process, which can also scatter and disappear to environment, to be polluted, and affects personnel health, and if anti-plain boiled water improper use
It can cause mucosal irritation and headache, and there is acetone the characteristic of acute poisoning to be mainly shown as that the anesthesia of Central nervous system is made
With appearance is out of strength, nauseous, has a headache, is dizzy, emotional.Vomiting, out of breath, spasm, or even stupor occur for severe one.To eye, nose, larynx
It is irritant；There is dizziness, burning sensation, pharyngitis, bronchitis, out of strength, emotional etc. in the Long Term Contact product, and skin is prolonged and repeated
Contact can cause dermatitis.Two kinds of chemicals all have inflammable, meet and open fire, high fever or contact with oxidant, have and cause combustion explosion
Danger.For the present invention by constantly groping and many experiments, the above-mentioned blender modulated can be complete under the effect of the laser
It totally cleaves solution, will not pollute.
Further, the blender by include the vinyl acetates of 38~54 mass parts, 5~10 mass parts polyethylene
Alcohol, the dibutyl phthalate of 2~12 mass parts, the 2-Ethylhexyl Alcohol of 0.2~2.2 mass parts, 0.1~6 mass parts mistake
The raw material of ammonium sulfate and the water of 30.5~46.9 mass parts is mixed to prepare.
The present invention also provides a kind of preparation methods of above-mentioned laser absorbent, include the following steps：
(1) optical absorbing agent host agent, blender and solvent is taken to be mixed.
Preferably, filter out the optical absorbing agent host agent having a size of 10~8000nm first with ion wind in step (1), then with tune
It is mixed with agent and solvent.It is preferable to use the screening plants in Chinese patent literature CN206981202U to screen optical absorbing agent host agent.
Application of the above-mentioned laser optical absorbing agent in cutting device.
Preferably, the substrate of the cutting device is any one of high-carbon steel, stainless steel.
Further, the substrate with a thickness of 0.08~0.8mm.
The beneficial effects of the invention are as follows：
The key performance of laser absorbent be laser absorption rate, if only carbon nanotubes when, carbon nanotubes is to incident light
Angle has a high requirement, incident light can with the increase of the angle between the inclined shake direction and orientation and carbon nanotubes for writing photon and by
Tapered small, when angle is zero, absorption is best, is hardly visible absorption value after angle is greater than 60 degree, when angle is greater than 90 degree,
Almost without absorption, and when spraying laser absorbent, not can guarantee carbon nanotubes cured angle on workpiece, the present invention by
The hypersorption characteristic of nano carbon microsphere come supply from carbon nanotubes gap expose laser, to improve the absorptivity of laser.
Detailed description of the invention
Fig. 1 is the gold of the cutting device of experimental group and comparative example 1 in embodiment 1 as microscope figure；
Fig. 2 is the gold of the cutting device of embodiment 2 and comparative example 3 as microscope figure.
Specific embodiment
It is clearly and completely described below with reference to technical effect of the embodiment to design and generation of the invention, with
It is completely understood by the purpose of the present invention, feature and effect.Obviously, described embodiment is that a part of the invention is implemented
Example, rather than whole embodiments, based on the embodiment of the present invention, those skilled in the art is not before making the creative labor
Other embodiments obtained are put, the scope of protection of the invention is belonged to.
Embodiment 1
Take the vinyl acetate of 45 mass parts, the polyvinyl alcohol of 5 mass parts, the dibutyl phthalate of 4 mass parts, 1
The water of the 2-Ethylhexyl Alcohol of mass parts, the ammonium persulfate of 0.1 mass parts and 44.9 mass parts is uniformly mixed and reconciliation is prepared
Agent.By nano carbon microsphere：The mass ratio of carbon nanotubes is 0.2：0.8 is mixed to get absorbent host agent, filters out 10 using ion wind
The optical absorbing agent host agent of~8000nm, the above-mentioned blender of optical absorbing agent host agent and 3.2 mass parts after taking the screening of 1 mass parts,
It is added in the water of 12 mass parts, is placed in Stainless steel basin and stirs 3h, be sufficiently mixed to obtain laser absorbent.The present embodiment uses
Screening plant in Chinese patent literature CN206981202U screens optical absorbing agent host agent.
Experimental group：Taking length and width is respectively high-carbon steel sheet material of the 500mm with a thickness of 0.5mm, sprays this using after sided corona treatment
The laser absorbent of embodiment, is placed on drying on drying frame, then carries out laser heat treatment to harden high-carbon steel sheet material, finally
It is cleaned to obtain cutting device using brush and clear water.
Comparative example 1：It is identical as experimental group preparation process, the difference is that comparative example 1 does not spray the laser of the present embodiment
Absorbent.
Comparative example 2：It is identical as experimental group preparation process, the difference is that the laser absorbent phase sprayed in comparative example 2
Laser absorbent compared with the present embodiment does not contain nano carbon microsphere, only contains carbon nanotubes.
The cutting device for taking experimental group, comparative example 1 and comparative example 2, measure its absorptivity, high-carbon steel sheet material original hardness and
Hardness after laser heat treatment, experimental result is as shown in table 1, table 2 and table 3.Wherein, absorptance test is carried out using in-situ method,
If laser scanning certain time (t0) when sample temperature be T (t0), laser absorption rate formula is：
Wherein B is laser absorption rate, and m is the quality of sample, cpFor the specific heat of sample, TaFor room temperature, that is, sample initial temperature, P are sharp
Optical power.
The performance of the cutting device of 1 experimental group of table
The performance of the cutting device of 2 comparative example 1 of table
The performance of the cutting device of 3 comparative example 2 of table
Can be seen that from data in Tables 1 and 2 after coating laser absorbent of the invention cutting device obtained with compared with
High laser absorption rate, in cutting device with good application prospect.
If data can be seen that laser absorbent and only have carbon nanotubes from table 1 and table 3, since carbon nanotubes is to entering
Shooting angle has high requirement, and incident light can be with the increase of the angle between the inclined shake direction and orientation and carbon nanotubes for writing photon
And be gradually reduced, when angle is zero, absorption is best, absorption value is hardly visible after angle is greater than 60 degree, when angle is greater than 90
When spending, almost without absorption, and when spraying laser absorbent, carbon nanotubes cured angle on workpiece not can guarantee, therefore only
When containing carbon nanotubes, the laser light absorbing efficiency of laser absorbent need to be improved.The present invention by nano carbon microsphere hypersorption
Characteristic come supply from carbon pipe gap expose laser, can make absorptivity promoted 88~97% or more.
The cutting device for taking experimental group and comparative example 1, using gold as the metal phase of micro- sem observation laser heat treatment is hardened
Microsection figure after change, result is as shown in Figure 1 (numerical value and scale bar unit are μm in figure).It can be seen from the figure that right
According in group due to be free of laser absorbent of the invention, after laser machining only have single layer hardened layer, the simple horse in surface
Family name's body.The cutting device bilayer hardening structure of experimental group is being removed after laser machining due to containing laser absorbent of the invention
Outside cementation zone, the transition zone for being about also 0.6~0.8mm with depth can increase the service life of cutting device.
The laser absorbent of the present embodiment when in use, under laser irradiation solvent main body can evaporating completely, will not be right
Human body causes any harm.
Embodiment 2
Take the vinyl acetate of 45 mass parts, the polyvinyl alcohol of 5 mass parts, the dibutyl phthalate of 4 mass parts, 1
The water of the 2-Ethylhexyl Alcohol of mass parts, the ammonium persulfate of 0.1 mass parts and 44.9 mass parts is uniformly mixed and reconciliation is prepared
Agent.By nano carbon microsphere：The mass ratio of carbon nanotubes is 0.36：0.64 is mixed to get absorbent host agent, is filtered out using ion wind
The optical absorbing agent host agent of 10~8000nm, the above-mentioned reconciliation of optical absorbing agent host agent and 5 mass parts after taking the screening of 1.8 mass parts
Agent is added in the water of 10 mass parts, is placed in Stainless steel basin and stirs 3h, is sufficiently mixed to obtain laser absorbent.
Comparative example 3：Laser absorbent in comparative example 3 is identical with the laser absorbent of the present embodiment, the difference is that,
Optical absorbing agent host agent is not screened using static breeze in preparation process.
Take the laser absorbent in the laser absorbent and comparative example 3 of the present embodiment according to the step of experimental group in embodiment 1
Rapid preparation cutting device, and the microsection figure after the golden metal phase change hardening as micro- sem observation laser heat treatment is used,
As a result as shown in Figure 2 (numerical value and scale bar unit are μm in figure).It can be seen from the figure that screening absorbent master using ion wind
The cutting device hardened layer that agent is prepared thickeies, this is because the nano carbon microsphere and carbon nanotubes absorptance of different nano-scales
Variant, the size screened using ion wind, can in the optical absorbing agent host agent absorptance with higher of 10~8000nm
The laser absorptance of laser absorbent is improved, so that the cutting device hardened layer being prepared into be made to deepen, and then improves cutting device
Cutting ability.
Embodiment 3
Take the vinyl acetate of 38 mass parts, the polyvinyl alcohol of 10 mass parts, 10 mass parts dibutyl phthalate,
The water of the 2-Ethylhexyl Alcohol of 0.2 mass parts, the ammonium persulfate of 6 mass parts and 30.5 mass parts is uniformly mixed and reconciliation is prepared
Agent.By nano carbon microsphere：The mass ratio of carbon nanotubes is 0.3：0.7 is mixed to get absorbent host agent, filters out 10 using ion wind
The optical absorbing agent host agent of~8000nm, the above-mentioned blender of optical absorbing agent host agent and 3.2 mass parts after taking the screening of 1 mass parts,
It is added in the water of 12 mass parts, is placed in Stainless steel basin and stirs 3h, be sufficiently mixed to obtain laser absorbent.
Embodiment 4
Take the vinyl acetate of 54 mass parts, the polyvinyl alcohol of 5 mass parts, 12 mass parts dibutyl phthalate,
The water of the 2-Ethylhexyl Alcohol of 0.2 mass parts, the ammonium persulfate of 0.1 mass parts and 46.9 mass parts is uniformly mixed and tune is prepared
And agent.By nano carbon microsphere：The mass ratio of carbon nanotubes is 0.36：0.7 is mixed to get absorbent host agent, is filtered out using ion wind
The optical absorbing agent host agent of 10~8000nm, the above-mentioned reconciliation of optical absorbing agent host agent and 4 mass parts after taking the screening of 1.5 mass parts
Agent is added in the water of 11 mass parts, is placed in Stainless steel basin and stirs 3h, is sufficiently mixed to obtain laser absorbent.
Claims (10)
1. a kind of laser absorbent, which is characterized in that including optical absorbing agent host agent, blender and solvent, the optical absorbing agent host agent packet
Nano carbon microsphere and carbon nanotubes are included, the blender is to the uniform dispersion optical absorbing agent host agent.
2. laser absorbent according to claim 1, which is characterized in that optical absorbing agent host agent including 1~1.8 mass parts,
The solvent of the blender of 3.2~5 mass parts and 10~12 mass parts.
3. laser absorbent according to claim 1 or 2, which is characterized in that the size of the optical absorbing agent host agent be 10~
8000nm。
4. laser absorbent according to claim 1 or 2, which is characterized in that nano carbon microsphere in the optical absorbing agent host agent：It receives
The mass ratio of rice carbon pipe is (0.2~0.36)~(0.64~0.8).
5. laser absorbent according to claim 1 or 2, which is characterized in that the blender by include vinyl acetate,
Polyvinyl alcohol, dibutyl phthalate, 2-Ethylhexyl Alcohol, ammonium persulfate and water raw material be mixed to prepare；The solvent is water.
6. laser absorbent according to claim 5, which is characterized in that the blender is by including 38~54 mass parts
Vinyl acetate, the polyvinyl alcohol of 5~10 mass parts, the dibutyl phthalate of 2~12 mass parts, 0.2~2.2 mass parts
2-Ethylhexyl Alcohol, the ammonium persulfate of 0.1~6 mass parts and the raw material of water of 30.5~46.9 mass parts be mixed to prepare.
7. the preparation method of laser absorbent described in any one of claims 1-6, which is characterized in that include the following steps：
(1) optical absorbing agent host agent, blender and solvent is taken to be mixed.
8. the preparation method of laser absorbent according to claim 7, which is characterized in that first with ion in step (1)
Pneumatic jig selects the optical absorbing agent host agent having a size of 10~8000nm, then mixes with blender and solvent.
9. application of the laser optical absorbing agent described in any one of claims 1-6 in cutting device.
10. application according to claim 9, which is characterized in that the substrate of the cutting device is high-carbon steel, in stainless steel
It is any.
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|---|---|---|---|
| CN201810564983.XA CN108822596B (en) | 2018-06-04 | 2018-06-04 | Laser absorber and preparation method and application thereof |
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| CN201810564983.XA CN108822596B (en) | 2018-06-04 | 2018-06-04 | Laser absorber and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451986A (en) * | 2019-09-09 | 2019-11-15 | 中国人民解放军国防科技大学 | Photocuring 3D printing SiCN ceramic precursor material and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110451986A (en) * | 2019-09-09 | 2019-11-15 | 中国人民解放军国防科技大学 | Photocuring 3D printing SiCN ceramic precursor material and application thereof |
| CN110451986B (en) * | 2019-09-09 | 2021-12-10 | 中国人民解放军国防科技大学 | Photocuring 3D printing SiCN ceramic precursor material and application thereof |
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