CN107266717B - A kind of preparation method of ABS engineering plastics laser labelling lubricant - Google Patents
A kind of preparation method of ABS engineering plastics laser labelling lubricant Download PDFInfo
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- CN107266717B CN107266717B CN201710387878.9A CN201710387878A CN107266717B CN 107266717 B CN107266717 B CN 107266717B CN 201710387878 A CN201710387878 A CN 201710387878A CN 107266717 B CN107266717 B CN 107266717B
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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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
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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
- C08K3/2279—Oxides; Hydroxides of metals of antimony
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
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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
- C08K2003/2231—Oxides; Hydroxides of metals of tin
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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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of preparation methods of ABS engineering plastics laser labelling lubricant, belong to laser marking additives technical field.The invention firstly uses dopamine solutions to impregnate modified laser absorbent; after filtration drying; after modified laser absorbent is mixed pyroreaction with inorganic agent; it is dissolved in ethylenediamine; laser absorbent ethylenediamine solution is made, under nitrogen protection state, mixed dehydration reacts in proportion with laser absorbent ethylenediamine solution after heating makes stearic acid melt; moisture in system is taken out of using stream of nitrogen gas, it is finally extruded to be granulated up to ABS engineering plastics laser labelling lubricants.Gained ABS engineering plastics of the invention are good with plastic substrate compatibility with laser labelling lubricant, can stable dispersion in the plastic, the mechanical strength of product can be effectively improved, and in laser mark process, the label of formation cleans, and comparison is apparent, has broad application prospects.
Description
Technical field
The invention discloses a kind of preparation methods of ABS engineering plastics laser labelling lubricant, belong to laser labelling and add
Add agent technical field.
Background technology
Laser labelling is a kind of novel markings method, and this method is to utilize laser emission, makes to generate inside polymeric matrix
Localized high energy, these energy are absorbed by polymeric matrix or additive, are converted to thermal energy, when thermal energy reaches certain numerical value,
The various of polymeric inner will be caused physically or chemically to change, bring it about charing, foaming, metachromasia etc., to generate
Mark effect.Laser labelling is mainly used for permanent marks, product false proof, tracking of important spare part etc. at present.Laser labelling
Effect is related with the laser type and plastic substrate property that use.Different plastic substrates markup can have differences, due to
Most polymers are poor to the laser absorption of wavelength 1064nm, how to improve polymer and become to the absorbability of laser to grind
Study carefully hot spot.Currently, the use of laser marking additives being a kind of common method that improvement polymer can be markup.
The common laser marking additives of ABS engineering plastics are mostly inorganic compound at present, after laser irradiation, from
Body color changes or causes plastics color to change by absorbing heat, to generate visible marking.Merck KGaA is public
The laser marking additives of department's exploitation include pearlescent pigment and laser-sensitive pigment, and pearlescent pigment is preferably TiO2Coated mica system
At thin slice, TiO2, Sn/Sb mixed oxides, Sn/In mixed oxides are as laser-sensitive pigment.The formula has obtained height
The label effect of contrast influences the transparency of plastics little.
The laser labelling composition of preparation in use, mostly uses greatly direct addition method, in engineering plastics matrix,
Be added proper proportion laser marking additives, by the methods of melt blending obtain can laser labelling material.
Due to the effect of surface energy, attraction is generated between inorganic compound minuteness particle so that particle aggregation is agglomerating, because
This is bound to cause absorbent if will directly be added in ABS engineering plastics Masterbatch as the inorganic compound of laser absorbent
It can not be well dispersed in plastic product, to influence laser labelling effect.
Invention content
The present invention solves the technical problem of：It is being added for traditional ABS engineering plastics laser labelling lubricant
To ABS engineering plastics Masterbatch, the inorganic additive for playing label in laser labelling lubricant is difficult in engineering
Good stable dispersion in plastics causes ABS engineering plastics mechanical performances bad, and the problem of laser labelling effect difference, provides
A kind of preparation method of ABS engineering plastics laser labelling lubricant.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）It counts in parts by weight, takes 0~20 part of laser absorbent successively, 0~40 part of inorganic agent, after high-temperature stirring reaction,
It is cooling, obtain pretreatment laser absorbent；
（2）Above-mentioned gained pretreatment laser absorbent is mixed with ethylenediamine, obtains laser absorbent ethylenediamine solution；
（3）Stearic acid is taken, is heated to melting completely under nitrogen protection state, then is added and swashs into the stearic acid after melting
Light absorber ethylenediamine solution, insulation reaction are reduced to 8~10mgKOH/g up to product acid value, obtain White waxy product, then will
Gained White waxy product is transferred to extruder, and extruding pelletization is to get ABS engineering plastics laser labelling lubricant；Described is hard
Resin acid and laser absorbent ethylenediamine solution be in molar ratio be 1：0.45~1：0.55（By ethylenediamine content calculation）.
Step（1）The laser absorbent is one or more of titanium oxide, tin oxide, antimony oxide.
Step（1）The inorganic agent is one or more of terephthalic acid (TPA), benzoic acid, phosphoric acid.
Step（1）The high-temperature stirring reaction condition is：120~140 DEG C of reaction temperature, 40~80min of reaction time.
Step（1）The pretreatment laser absorbent is that be that 2g/L dopamine solutions are impregnated with mass concentration modified
Laser absorbent.
Step（2）The laser absorbent ethylenediamine solution mass fraction is 0~10%.
Step（3）The heating condition under nitrogen protection state is：It is 10~20mL/min that nitrogen, which is passed through rate, with
3~5 DEG C/min rate programs are warming up to 170~180 DEG C.
Step（3）The extruder extruding pelletization Parameter Conditions are：One 138~140 DEG C of area's temperature, two area's temperature 148
~150 DEG C, three 158~160 DEG C of area's temperature, four 178~180 DEG C of area's temperature, five 178~180 DEG C of area's temperature, six area's temperature 178
~180 DEG C, seven 178~180 DEG C of area's temperature, extrusion pressure is 1.8~2.0MPa.
The beneficial effects of the invention are as follows：
（1）The present invention is impregnated by dopamine solution first, and using under weakly alkaline environment, dopamine is in system dissolved oxygen
Under effect, oxidation autohemagglutination occurs, then has become poly-dopamine organic thin layer in the formation of laser absorbent inorganic particle surfaces, utilizes
The excellent absorption property of the organic thin layer of formation adsorbs organic agent in preprocessing process, and occurs in organic agent
Chemical bonding is conducive to its stable dispersion in resin to realize the wetting to laser absorbent inorganic particle；
（2）The present invention is handled inorganic laser absorbent granules using the lower organic agent of viscosity as raw material, because
Organic agent viscosity is smaller, and inside the inorganic particle for more easily infiltrating into aggregation at high temperature, and quick spread is in exposed nothing
Machine particle surface recycles ethylenediamine and stearic acid to react dehydration at high temperature, is formed with to make inorganic particle wetting and dispersing
Machine clad improves the compatibility of product and ABS engineering plastics Masterbatch, to finally improve the mechanicalness of engineering plastics product
It can be with laser labelling effect.
Specific implementation mode
By laser absorbent and mass concentration be 2g/L dopamine solutions it is 1 in mass ratio：10~1：20 pour into beaker,
It is that 8~10% sodium hydroxide solutions adjust pH to 8.8~9.0, then beaker immigration digital display is tested the speed constant temperature magnetic force that mass fraction, which is used in combination,
Blender is 45~55 DEG C in temperature, and under the conditions of rotating speed is 300~500r/min, constant temperature is stirred to react 45~60min, waits for anti-
It should terminate, filter, obtain filter cake, and gained filter cake is placed in vacuum freezing drying oven, be freeze-dried 2~4h, obtain dopamine and change
Property laser absorbent, then count in parts by weight, 0~20 part of dopamine modified laser absorbent is sequentially added in three-necked flask, 0
~40 parts of inorganic agents are 120~140 DEG C in temperature, under the conditions of rotating speed is 600~800r/min, constant temperature is stirred to react 40~
80min waits for cooled to room temperature after reaction, obtains pretreatment laser absorbent, and gained is pre-processed laser absorbent
It is mixed with ethylenediamine, it is 0~10% laser absorbent ethylenediamine solution to be configured to mass fraction；Stearic acid is poured into reaction
In kettle, then nitrogen is passed through into reaction kettle with 10~20mL/min rates, under nitrogen protection state, with 3~5 DEG C/min rates
Temperature programming is to 170~180 DEG C, and heating is until stearic acid melts completely, then laser absorbent ethylenediamine is added into reaction kettle
Solution is 400~600r/min in rotating speed, and under the conditions of temperature is 170~180 DEG C, insulated and stirred reaction is until product acid value drops
Down to 8~10mgKOH/g, White waxy product is obtained；The stearic acid and laser absorbent ethylenediamine solution is in molar ratio
It is 1：0.45~1：0.55（By ethylenediamine content calculation）；Gained White waxy product is transferred to no screw pressure extruding pelletization again
Machine, in extrusion pressure be 1.8~2.0MPa, 138~140 DEG C of area's temperature, two 148~150 DEG C of area's temperature, three area's temperature 158
~160 DEG C, four 178~180 DEG C of area's temperature, five 178~180 DEG C of area's temperature, six 178~180 DEG C of area's temperature, seven area's temperature 178
Under the conditions of~180 DEG C, extruding pelletization is packed after naturally cool to room temperature to get ABS engineering plastics laser labelling lubricant.
Wherein the laser absorbent is one or more of titanium oxide, tin oxide, antimony oxide.Wherein the inorganic agent is pair
One or more of phthalic acid, benzoic acid, phosphoric acid.
Example 1
By laser absorbent and mass concentration be 2g/L dopamine solutions it is 1 in mass ratio：10 pour into beaker, and matter is used in combination
It is that 8% sodium hydroxide solution adjusts pH to 8.8, then beaker immigration digital display is tested the speed constant temperature blender with magnetic force to measure score, is in temperature
45 DEG C, under the conditions of rotating speed is 300r/min, constant temperature is stirred to react 45min, and to the end of reaction, filtering obtains filter cake, and gained is filtered
Cake is placed in vacuum freezing drying oven, is freeze-dried 2h, dopamine modified laser absorbent is obtained, then count in parts by weight, three
Sequentially add 10 parts of dopamine modified laser absorbents in mouthful flask, 10 parts of inorganic agents, in temperature be 120 DEG C, rotating speed 600r/
Under the conditions of min, constant temperature is stirred to react 40min, waits for cooled to room temperature after reaction, obtains pretreatment laser absorbent, and
Gained pretreatment laser absorbent is mixed with ethylenediamine, it is that 4% laser absorbent ethylenediamine is molten to be configured to mass fraction
Liquid；Stearic acid is poured into reaction kettle, then nitrogen is passed through into reaction kettle with 10mL/min rates, under nitrogen protection state,
170 DEG C are warming up to 3 DEG C/min rate programs, heating is until stearic acid melts completely, then laser absorption is added into reaction kettle
Agent ethylenediamine solution is 400r/min in rotating speed, and under the conditions of temperature is 170 DEG C, insulated and stirred reaction is until product acid value reduces
To 8mgKOH/g, White waxy product is obtained；The stearic acid and laser absorbent ethylenediamine solution be in molar ratio be 1：
0.45（By ethylenediamine content calculation）；Gained White waxy product is transferred to no screw pressure extruding granulator again, is pressed in squeezing out
Power is 1.8MPa, 138 DEG C of area's temperature, two 148 DEG C of area's temperature, three 158 DEG C of area's temperature, four 178 DEG C of area's temperature, five area's temperature
178 DEG C, six 178 DEG C of area's temperature, under the conditions of seven 178 DEG C of area's temperature, extruding pelletization, after naturally cool to room temperature, packaging to get
ABS engineering plastics laser labelling lubricant.Wherein the laser absorbent is titanium oxide.Wherein the inorganic agent is pair
Phthalic acid.
Example 2
By laser absorbent and mass concentration be 2g/L dopamine solutions it is 1 in mass ratio：15 pour into beaker, and matter is used in combination
It is that 9% sodium hydroxide solution adjusts pH to 8.9, then beaker immigration digital display is tested the speed constant temperature blender with magnetic force to measure score, is in temperature
48 DEG C, under the conditions of rotating speed is 400r/min, constant temperature is stirred to react 50min, and to the end of reaction, filtering obtains filter cake, and gained is filtered
Cake is placed in vacuum freezing drying oven, is freeze-dried 3h, dopamine modified laser absorbent is obtained, then count in parts by weight, three
Sequentially add 15 parts of dopamine modified laser absorbents in mouthful flask, 30 parts of inorganic agents, in temperature be 130 DEG C, rotating speed 700r/
Under the conditions of min, constant temperature is stirred to react 60min, waits for cooled to room temperature after reaction, obtains pretreatment laser absorbent, and
Gained pretreatment laser absorbent is mixed with ethylenediamine, it is that 8% laser absorbent ethylenediamine is molten to be configured to mass fraction
Liquid；Stearic acid is poured into reaction kettle, then nitrogen is passed through into reaction kettle with 15mL/min rates, under nitrogen protection state,
175 DEG C are warming up to 4 DEG C/min rate programs, heating is until stearic acid melts completely, then laser absorption is added into reaction kettle
Agent ethylenediamine solution is 500r/min in rotating speed, and under the conditions of temperature is 175 DEG C, insulated and stirred reaction is until product acid value reduces
To 9mgKOH/g, White waxy product is obtained；The stearic acid and laser absorbent ethylenediamine solution be in molar ratio be 1：0.5
（By ethylenediamine content calculation）；Gained White waxy product is transferred to no screw pressure extruding granulator again, is in extrusion pressure
1.9MPa, 139 DEG C of area's temperature, two 149 DEG C of area's temperature, three 159 DEG C of area's temperature, four 179 DEG C of area's temperature, five 179 DEG C of area's temperature,
Six 179 DEG C of area's temperature, under the conditions of seven 179 DEG C of area's temperature, extruding pelletization is packed after naturally cool to room temperature to get ABS engineerings
Plastics laser labelling lubricant.It is 1 in mass ratio that wherein the laser absorbent, which is titanium oxide and tin oxide,：1 mixing and
At.It is 1 in mass ratio that wherein the inorganic agent, which is terephthalic acid (TPA) and phosphoric acid,：1 mixes.
Example 3
By laser absorbent and mass concentration be 2g/L dopamine solutions it is 1 in mass ratio：20 pour into beaker, and matter is used in combination
It is that 10% sodium hydroxide solution adjusts pH to 9.0, then beaker immigration digital display is tested the speed constant temperature blender with magnetic force to measure score, in temperature
It it is 55 DEG C, under the conditions of rotating speed is 500r/min, constant temperature is stirred to react 60min, and to the end of reaction, filtering obtains filter cake, and by gained
Filter cake is placed in vacuum freezing drying oven, is freeze-dried 4h, is obtained dopamine modified laser absorbent, then count in parts by weight,
20 parts of dopamine modified laser absorbents are sequentially added in three-necked flask, 40 parts of inorganic agents are 140 DEG C in temperature, and rotating speed is
Under the conditions of 800r/min, constant temperature is stirred to react 80min, waits for cooled to room temperature after reaction, obtains pretreatment laser absorption
Agent, and gained pretreatment laser absorbent is mixed with ethylenediamine, it is 10% laser absorbent second two to be configured to mass fraction
Amine aqueous solution；Stearic acid is poured into reaction kettle, then nitrogen is passed through into reaction kettle with 20mL/min rates, in nitrogen protection state
Under, 180 DEG C are warming up to 5 DEG C/min rate programs, heating is until stearic acid melts completely, then laser is added into reaction kettle and inhales
Agent ethylenediamine solution is received, is 600r/min in rotating speed, under the conditions of temperature is 180 DEG C, insulated and stirred reaction is until product acid value drops
Down to 10mgKOH/g, White waxy product is obtained；The stearic acid and laser absorbent ethylenediamine solution be in molar ratio be 1：
0.55（By ethylenediamine content calculation）；Gained White waxy product is transferred to no screw pressure extruding granulator again, is pressed in squeezing out
Power is 2.0MPa, 140 DEG C of area's temperature, two 150 DEG C of area's temperature, three 160 DEG C of area's temperature, four 180 DEG C of area's temperature, five area's temperature
180 DEG C, six 180 DEG C of area's temperature, under the conditions of seven 180 DEG C of area's temperature, extruding pelletization, after naturally cool to room temperature, packaging to get
ABS engineering plastics laser labelling lubricant.Wherein the laser absorbent is that titanium oxide, tin oxide and antimony oxide press quality
Than being 3：1：1 mixes.It is 2 in mass ratio that wherein the inorganic agent, which is terephthalic acid (TPA), benzoic acid and phosphoric acid,：1：1 is mixed
It closes.
Example 4（Blank comparative example）
It counts in parts by weight, takes 80 parts of AS resins, 20 parts of HBS resins, 1 part of EBS resin, 0.06 part of antioxidant successively
1010,0.18 parts of irgasfos 168s, extrusion molding after mixing obtain No. 1 engineering plastics product.
Example 5
It counts in parts by weight, takes 80 parts of AS resins successively, 20 parts of HBS resins, 1 part of 1 gained ABS engineering plastics of example, which is used, to swash
Signal lubricant, 0.06 part of antioxidant 1010,0.18 part of irgasfos 168, extrusion molding after mixing obtain No. 2 engineering plastics productions
Product.
Example 6
It counts in parts by weight, takes 80 parts of AS resins successively, 20 parts of HBS resins, 1 part of 2 gained ABS engineering plastics of example, which is used, to swash
Signal lubricant, 0.06 part of antioxidant 1010,0.18 part of irgasfos 168, extrusion molding after mixing obtain No. 3 engineering plastics productions
Product.
Example 7
It counts in parts by weight, takes 80 parts of AS resins successively, 20 parts of HBS resins, 1 part of 3 gained ABS engineering plastics of example, which is used, to swash
Signal lubricant, 0.06 part of antioxidant 1010,0.18 part of irgasfos 168, extrusion molding after mixing obtain No. 3 engineering plastics productions
Product.
Example 8
It counts in parts by weight, takes 80 parts of AS resins successively, 20 parts of HBS resins, 2 parts of 3 gained ABS engineering plastics of example, which are used, to swash
Signal lubricant, 0.06 part of antioxidant 1010,0.18 part of irgasfos 168, extrusion molding after mixing obtain No. 4 engineering plastics productions
Product.
4,5,6,7,8 gained engineering plastics product of example is detected respectively：
The tensile strength of engineering plastics is detected using the modest logical instrument QT-6202A electronic tension testers in Suzhou and is bent strong
Degree, tensile strength testing standard are ISO527, and test condition 50mm/min, bending strength testing standard is ISO178, test
Condition is 2mm/min；
Engineering plastics notch impact strength is tested using simply supported beam method, testing standard ISO180, test condition
For room temperature；
Using Melt Flow Rate Measurer testing engineering plastic melt flow rate, testing standard ISO1133, test condition
For 220 DEG C of temperature, pressure 1.0MPa；
Engineering plastics product is marked with the laser of wavelength 1064nm, and detects the contrast and color of label.
Testing result is as shown in the table：
| Example 4 | Example 5 | Example 6 | Example 7 | Example 8 | |
| Tensile strength/MPa | 44.8 | 45.8 | 45.9 | 45.8 | 46.2 |
| Bending strength/MPa | 64.2 | 65.5 | 66.2 | 66 | 67.1 |
| Notch impact strength/KJ/m2 | 18.2 | 18.4 | 18.5 | 18.3 | 18.6 |
| Melt flow rate (MFR)/g/10min | 14.5 | 14.6 | 14.7 | 14.6 | 14.5 |
| Marker color | It is unmarked | Black gray expandable | Black gray expandable | Black | Black |
| Contrast | 0 | 180：1 | 190：1 | 220：1 | 280：1 |
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (5)
1. a kind of preparation method of ABS engineering plastics laser labelling lubricant, it is characterised in that specifically preparation process is：
（1）It counts in parts by weight, takes 0~20 part of laser absorbent, 0~40 part of inorganic agent cold after high-temperature stirring reaction successively
But, pretreatment laser absorbent is obtained；The laser absorbent is one or more of titanium oxide, tin oxide, antimony oxide；Institute
The inorganic agent stated is one or more of terephthalic acid (TPA), benzoic acid, phosphoric acid；
（2）By laser absorbent and mass concentration be 2g/L dopamine solutions it is 1 in mass ratio：10~1：20 pour into beaker,
It is that 8~10% sodium hydroxide solutions adjust pH to 8.8~9.0, then beaker immigration digital display is tested the speed constant temperature magnetic force that mass fraction, which is used in combination,
Blender is 45~55 DEG C in temperature, and under the conditions of rotating speed is 300~500r/min, constant temperature is stirred to react 45~60min, waits for anti-
It should terminate, filter, obtain filter cake, and gained filter cake is placed in vacuum freezing drying oven, be freeze-dried 2~4h, obtain dopamine and change
Property laser absorbent；
（3）It counts in parts by weight again, sequentially adds 0~20 part of dopamine modified laser absorbent in three-necked flask, 0~40 part
Inorganic agent is 120~140 DEG C in temperature, and under the conditions of rotating speed is 600~800r/min, constant temperature is stirred to react 40~80min, waits for
Cooled to room temperature after reaction obtains pretreatment laser absorbent；
（2）Above-mentioned gained pretreatment laser absorbent is mixed with ethylenediamine, obtains laser absorbent ethylenediamine solution；
（3）Stearic acid is taken, is heated to melting completely under nitrogen protection state, then laser is added into the stearic acid after melting and inhales
Agent ethylenediamine solution is received, insulation reaction obtains White waxy product until product acid value is reduced to 8~10mgKOH/g, then by gained
White waxy product is transferred to extruder, and extruding pelletization is to get ABS engineering plastics laser labelling lubricant；The stearic acid
It is 1 with ethylenediamine molar ratio in laser absorbent ethylenediamine solution：0.45~1：0.55.
2. a kind of preparation method of ABS engineering plastics laser labelling lubricant according to claim 1, feature exist
In：Step（1）The high-temperature stirring reaction condition is：120~140 DEG C of reaction temperature, 40~80min of reaction time.
3. a kind of preparation method of ABS engineering plastics laser labelling lubricant according to claim 1, feature exist
In：Step（2）The laser absorbent ethylenediamine solution mass fraction is 0~10%.
4. a kind of preparation method of ABS engineering plastics laser labelling lubricant according to claim 1, feature exist
In：Step（3）The heating condition under nitrogen protection state is：It is 10~20mL/min that nitrogen, which is passed through rate, with 3~5
DEG C/min rate programs are warming up to 170~180 DEG C.
5. a kind of preparation method of ABS engineering plastics laser labelling lubricant according to claim 1, feature exist
In：Step（3）The extruder extruding pelletization Parameter Conditions are：One 138~140 DEG C of area's temperature, two area's temperature 148~150
DEG C, three 158~160 DEG C of area's temperature, four 178~180 DEG C of area's temperature, five 178~180 DEG C of area's temperature, six area's temperature 178~180
DEG C, seven 178~180 DEG C of area's temperature, extrusion pressure is 1.8~2.0MPa.
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| CN114957791A (en) * | 2022-06-21 | 2022-08-30 | 江苏华信新材料股份有限公司 | Nano powder auxiliary agent for high-sensitivity laser etching and preparation method thereof |
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| ES2355017T3 (en) * | 2007-06-29 | 2011-03-22 | Merck Patent Gmbh | MICROSPHERE THAT INCLUDES A POLYMERIC CORE, A COVER AND AN ABSORBENT. |
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| CN107266717A (en) | 2017-10-20 |
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