CN106752703A - A kind of electrostatic spraying powder coating containing modified 2 methylimidazoles - Google Patents
A kind of electrostatic spraying powder coating containing modified 2 methylimidazoles Download PDFInfo
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- 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
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- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
- C08G59/50—Amines
- C08G59/56—Amines together with other curing agents
- C08G59/58—Amines together with other curing agents with polycarboxylic acids or with anhydrides, halides, or low-molecular-weight esters thereof
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- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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- 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
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Abstract
The invention discloses a kind of electrostatic spraying powder coating containing modified 2 methylimidazoles, its raw material includes：Hydrogenated bisphenol A epoxy resin, novolac epoxy resin, bicyclopentadiene dioxide, polyarylene sulfide resin, nylon, dicyandiamide, phthalic anhydride, modified 2 methylimidazoles, aluminium hydroxide, gas-phase silica, precipitation method barium sulfate, CNT, nano silicon, magnesium hydroxide, nano ceric oxide, micro- wax powder, the TSL 8330 of N phenyl 3, levelling agent, defoamer.Electrostatic spraying powder coating containing modified 2 methylimidazoles proposed by the present invention, its is heat-resist, and excellent shock resistance, solidification temperature is low, long service life.
Description
Technical field
Applied the present invention relates to technical field of coatings, more particularly to a kind of electrostatic spraying powder containing modified 2-methylimidazole
Material.
Background technology
Electrostatic spraying is electronegative paint particles is oriented fortune along the opposite direction of electric field using high-pressure electrostatic electric field
It is dynamic, and by paint particles absorption workpiece surface a kind of spraying method, because it has utilization rate high, can realize mechanization,
Automation, production line balance, adhesion are strong, and coating surface is smooth, and roughness is small, the advantage small to the pollution of environment, in recent years
Gradually instead of traditional lacquer spraying technique.Epoxy resin is due to excellent bonding force, anticorrosive property, hardness, flexible
Property and impact strength, have been widely used in the fields such as household electrical appliances, the vehicles, hardware machinery, but epoxy coating at present
It is extremely sensitive to ultraviolet due to the presence of fragrant ether group, so that its heat resistance is not high, limit its application.
The content of the invention
Based on the technical problem that background technology is present, the present invention proposes a kind of electrostatic spraying containing modified 2-methylimidazole
Powdery paints, its is heat-resist, and excellent shock resistance, solidification temperature is low, long service life.
A kind of electrostatic spraying powder coating containing modified 2-methylimidazole proposed by the present invention, its raw material is wrapped by weight
Include：Hydrogenated bisphenol A epoxy resin 50-80 parts, novolac epoxy resin 20-50 parts, bicyclopentadiene dioxide 10-30 parts, poly- virtue
Sulfide resin 5-10 parts, nylon 5-20 parts, dicyandiamide 2-4 parts, phthalic anhydride 0.1-0.8 parts, modified 2-methylimidazole
0.05-0.15 parts, aluminium hydroxide 2-5 parts, gas-phase silica 1-5 parts, 2-10 parts of precipitation method barium sulfate, CNT 1-3 parts, receive
2-10 parts of silica of rice, magnesium hydroxide 1-5 parts, nano ceric oxide 2-5 parts, micro- wax powder 0.5-1.5 parts, N- phenyl -3- ammonia
1-2.5 parts, levelling agent 0.1-0.5 parts, defoamer 0.01-0.1 parts of base propyl trimethoxy silicane；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By 1,2,4,5- benzene tetracarboxylic acids and nitric acid
Lanthanum is added to the water and stirs, and then carries out hydro-thermal reaction 10-25h at 100-120 DEG C, reaction terminate after through filtering, washing,
It is dried to obtain material A；By in 2-methylimidazole addition ethanol, material A is stirring evenly and then adding into, reaction 30- is stirred at room temperature
50min, then through filtering, washing, being dried to obtain the modified 2-methylimidazole.
Preferably, in its raw material, hydrogenated bisphenol A epoxy resin, novolac epoxy resin, bicyclopentadiene dioxide, poly- virtue
Sulfide resin, the weight ratio of nylon are 58-65：28-40：17-26：7-9：11-17.
Preferably, dicyandiamide, phthalic anhydride, the weight ratio of modified 2-methylimidazole are 2.5-3.7：0.2-0.7：
0.08-0.13。
Preferably, its raw material includes by weight：60 parts of hydrogenated bisphenol A epoxy resin, 40 parts of novolac epoxy resin, dioxy
Change 22 parts of dicyclopentadiene, 8 parts of polyarylene sulfide resin, 12 parts of nylon, 3.2 parts of dicyandiamide, 0.5 part of phthalic anhydride, modified
0.1 part of 2-methylimidazole, 3 parts of aluminium hydroxide, 2 parts of gas-phase silica, 8 parts of precipitation method barium sulfate, part, nanometer two of CNT 2
8.5 parts of silica, 3 parts of magnesium hydroxide, 4 parts of nano ceric oxide, 1 part of micro- wax powder, N- phenyl -3- aminopropyl trimethoxy silicon
1.7 parts of alkane, 0.3 part of levelling agent, 0.06 part of defoamer.
Preferably, the modified 2-methylimidazole is prepared according to following technique：By weight by 100-120 parts 1,2,
4,5- benzene tetracarboxylic acids and 3-15 parts of lanthanum nitrate are stirred in adding 500-800 parts of water, and hydro-thermal is then carried out at 105-115 DEG C
Reaction 15-20h, reacts after terminating through filtering, washing, be dried to obtain material A；30-40 parts of 2-methylimidazole is added by weight
Enter in 300-500 parts of ethanol, be stirring evenly and then adding into 90-120 parts of material A, reaction 35-40min, Ran Houjing is stirred at room temperature
Filter, wash, being dried to obtain the modified 2-methylimidazole.
Preferably, the modified 2-methylimidazole is prepared according to following technique：By weight by 110 part 1,2,4,5-
Benzene tetracarboxylic acid and 12 parts of lanthanum nitrates are stirred in adding 600 parts of water, and hydro-thermal reaction 18h, reaction knot are then carried out at 110 DEG C
Shu Houjing is filtered, washs, is dried to obtain material A；By weight by 35 parts of 2-methylimidazoles 400 parts of ethanol of addition, stirring is equal
100 parts of material As are added after even, reaction 38min is stirred at room temperature, then through filtering, washing, being dried to obtain the modified 2- first
Base imidazoles.
Preferably, the CNT is the CNT of carboxylated.
Preferably, the average grain diameter of the nano silicon is 50-80nm；The average grain diameter of the nano ceric oxide
It is 20-50nm.
Electrostatic spraying powder coating containing modified 2-methylimidazole of the present invention, it is with hydrogenated bisphenol A epoxy resin
Major ingredient, at the same add novolac epoxy resin, bicyclopentadiene dioxide, polyarylene sulfide resin, nylon and its coordinate, while adjust
Saved five ratios, cooperateed with five performance, so as to get coating it is good with the adhesive force of base material, the shiny appearance of film, put down
Whole, heat resistance and ageing-resistant performance are excellent, and low cost；With dicyandiamide, phthalic anhydride, modified 2-methylimidazole with cooperation
It is curing agent, shortens the time of solidification, while improve the shock resistance of coating, improves because of bicyclopentadiene dioxide
The big defect of the fragility that causes of addition；In preferred embodiment, in the preparation process of modified 2-methylimidazole, first with 1,2,4,
5- benzene tetracarboxylic acids and lanthanum nitrate are raw material, both is there occurs complex reaction, are mixed with 2-methylimidazole afterwards, make 2- methyl miaows
3 nitrogen-atoms and 1 on azoles ring, 2,4,5- benzene tetracarboxylic acids there occurs that reaction has obtained modified 2-methylimidazole, as solid
In agent addition system, there is excellent synergy with dicyandiamide, phthalic anhydride, shorten the time of solidification, reduce
The temperature of solidification, while improve the heat resistance and resistance to ag(e)ing of coating, and improves the intensity and toughness of coating；Hydroxide
Aluminium, gas-phase silica, precipitation method barium sulfate, CNT, nano silicon, magnesium hydroxide, nano ceric oxide are in N- benzene
Under the auxiliary of base -3- TSL 8330s, it is uniformly dispersed, improves the mechanical property of coating, while significantly improves
The heat resistance and anti-flammability of coating, while improve the thermal diffusivity of coating.
Specific embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of electrostatic spraying powder coating containing modified 2-methylimidazole proposed by the present invention, its raw material is wrapped by weight
Include：80 parts of hydrogenated bisphenol A epoxy resin, 20 parts of novolac epoxy resin, 30 parts of bicyclopentadiene dioxide, polyarylene sulfide resin 5
Part, 20 parts of nylon, 2 parts of dicyandiamide, 0.8 part of phthalic anhydride, modified 0.05 part of 2-methylimidazole, 5 parts of aluminium hydroxide, gas phase
1 part of white carbon, 10 parts of precipitation method barium sulfate, 1 part of CNT, 10 parts of nano silicon, 1 part of magnesium hydroxide, nano-silica
Change 5 parts of cerium, 0.5 part of micro- wax powder, 2.5 parts of N- phenyl -3- TSL 8330s, 0.1 part of levelling agent, defoamer 0.1
Part；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By 1,2,4,5- benzene tetracarboxylic acids and nitric acid
Lanthanum is added to the water and stirs, and then carries out hydro-thermal reaction 25h at 100 DEG C, reaction terminate after through filtering, washing, dry
To material A；By in 2-methylimidazole addition ethanol, material A is stirring evenly and then adding into, reaction 30min is stirred at room temperature, then
Through filtering, washing, being dried to obtain the modified 2-methylimidazole.
Embodiment 2
A kind of electrostatic spraying powder coating containing modified 2-methylimidazole proposed by the present invention, its raw material is wrapped by weight
Include：50 parts of hydrogenated bisphenol A epoxy resin, 50 parts of novolac epoxy resin, 10 parts of bicyclopentadiene dioxide, polyarylene sulfide resin 10
Part, 5 parts of nylon, 4 parts of dicyandiamide, 0.1 part of phthalic anhydride, modified 0.15 part of 2-methylimidazole, 2 parts of aluminium hydroxide, gas phase
5 parts of white carbon, 2 parts of precipitation method barium sulfate, 3 parts of CNT, 2 parts of nano silicon, 5 parts of magnesium hydroxide, nanometer titanium dioxide
2 parts of cerium, 1.5 parts of micro- wax powder, 1 part of N- phenyl -3- TSL 8330s, 0.5 part of levelling agent, 0.01 part of defoamer；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By 1,2,4,5- benzene tetracarboxylic acids and nitric acid
Lanthanum is added to the water and stirs, and then carries out hydro-thermal reaction 10h at 120 DEG C, reaction terminate after through filtering, washing, dry
To material A；By in 2-methylimidazole addition ethanol, material A is stirring evenly and then adding into, reaction 50min is stirred at room temperature, then
Through filtering, washing, being dried to obtain the modified 2-methylimidazole.
Embodiment 3
A kind of electrostatic spraying powder coating containing modified 2-methylimidazole proposed by the present invention, its raw material is wrapped by weight
Include：65 parts of hydrogenated bisphenol A epoxy resin, 28 parts of novolac epoxy resin, 26 parts of bicyclopentadiene dioxide, polyarylene sulfide resin 7
Part, 17 parts of nylon, 2.5 parts of dicyandiamide, 0.7 part of phthalic anhydride, modified 0.08 part of 2-methylimidazole, 4.3 parts of aluminium hydroxide,
2 parts of gas-phase silica, 8 parts of precipitation method barium sulfate, 1.6 parts of CNT, 9 parts of nano silicon, 1.9 parts of magnesium hydroxide, receive
Rice 4.3 parts of ceria, 0.6 part of micro- wax powder, 2.1 parts of N- phenyl -3- TSL 8330s, 0.19 part of levelling agent,
0.08 part of defoamer；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By weight by 120 part 1,2,4,5- benzene
Tetracarboxylic acid and 3 parts of lanthanum nitrates are stirred in adding 800 parts of water, and hydro-thermal reaction 20h is then carried out at 105 DEG C, and reaction terminates
By filtering, wash, be dried to obtain material A；By weight by 30 parts of 2-methylimidazoles 500 parts of ethanol of addition, stir
90 parts of material As are added afterwards, reaction 40min are stirred at room temperature, then through filtering, washing, being dried to obtain the modified 2- methyl
Imidazoles；
The average grain diameter of the nano silicon is 50nm；The average grain diameter of the nano ceric oxide is 50nm.
Embodiment 4
A kind of electrostatic spraying powder coating containing modified 2-methylimidazole proposed by the present invention, its raw material is wrapped by weight
Include：58 parts of hydrogenated bisphenol A epoxy resin, 40 parts of novolac epoxy resin, 17 parts of bicyclopentadiene dioxide, polyarylene sulfide resin 9
Part, nylon 11 part, 3.7 parts of dicyandiamide, 0.2 part of phthalic anhydride, modified 0.13 part of 2-methylimidazole, 2.6 parts of aluminium hydroxide,
4 parts of gas-phase silica, 4 parts of precipitation method barium sulfate, 2.8 parts of CNT, 3 parts of nano silicon, 4.3 parts of magnesium hydroxide, receive
Rice 2.5 parts of ceria, 1.3 parts of micro- wax powder, 1.4 parts of N- phenyl -3- TSL 8330s, 0.43 part of levelling agent,
0.02 part of defoamer；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By weight by 100 part 1,2,4,5- benzene
Tetracarboxylic acid and 15 parts of lanthanum nitrates are stirred in adding 500 parts of water, and hydro-thermal reaction 15h is then carried out at 115 DEG C, and reaction terminates
By filtering, wash, be dried to obtain material A；By weight by 40 parts of 2-methylimidazoles 300 parts of ethanol of addition, stir
120 parts of material As are added afterwards, reaction 35m in are stirred at room temperature, then through filtering, washing, being dried to obtain the modified 2- first
Base imidazoles；
The average grain diameter of the nano silicon is 80nm；The average grain diameter of the nano ceric oxide is 20nm.
Embodiment 5
A kind of electrostatic spraying powder coating containing modified 2-methylimidazole proposed by the present invention, its raw material is wrapped by weight
Include：60 parts of hydrogenated bisphenol A epoxy resin, 40 parts of novolac epoxy resin, 22 parts of bicyclopentadiene dioxide, polyarylene sulfide resin 8
Part, 12 parts of nylon, 3.2 parts of dicyandiamide, 0.5 part of phthalic anhydride, modified 0.1 part of 2-methylimidazole, 3 parts of aluminium hydroxide, gas
2 parts of phase white carbon, 8 parts of precipitation method barium sulfate, 2 parts of CNT, 8.5 parts of nano silicon, part, nanometer two of magnesium hydroxide 3
4 parts of cerium oxide, 1 part of micro- wax powder, 1.7 parts of N- phenyl -3- TSL 8330s, 0.3 part of levelling agent, defoamer 0.06
Part；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By weight by 110 part 1,2,4,5- benzene
Tetracarboxylic acid and 12 parts of lanthanum nitrates are stirred in adding 600 parts of water, and hydro-thermal reaction 18h is then carried out at 110 DEG C, and reaction terminates
By filtering, wash, be dried to obtain material A；By weight by 35 parts of 2-methylimidazoles 400 parts of ethanol of addition, stir
100 parts of material As are added afterwards, reaction 38min are stirred at room temperature, then through filtering, washing, being dried to obtain the modified 2- methyl
Imidazoles；
The CNT is the CNT of carboxylated；
The average grain diameter of the nano silicon is 60nm；The average grain diameter of the nano ceric oxide is 30nm.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (8)
1. a kind of electrostatic spraying powder coating containing modified 2-methylimidazole, it is characterised in that its raw material includes by weight：Hydrogen
Change 50-80 parts of bisphenol A epoxide resin, novolac epoxy resin 20-50 parts, bicyclopentadiene dioxide 10-30 parts, poly arylidene thio-ester tree
Fat 5-10 parts, nylon 5-20 parts, dicyandiamide 2-4 parts, phthalic anhydride 0.1-0.8 parts, modified 2-methylimidazole 0.05-0.15
Part, aluminium hydroxide 2-5 parts, gas-phase silica 1-5 parts, 2-10 parts of precipitation method barium sulfate, CNT 1-3 parts, nanometer titanium dioxide
Silicon 2-10 parts, magnesium hydroxide 1-5 parts, nano ceric oxide 2-5 parts, micro- wax powder 0.5-1.5 parts, N- phenyl -3- aminopropyls three
Methoxy silane 1-2.5 parts, levelling agent 0.1-0.5 parts, defoamer 0.01-0.1 parts；
Wherein, the modified 2-methylimidazole is prepared according to following technique：By 1,2,4,5- benzene tetracarboxylic acids and lanthanum nitrate add
To enter stir in water, then carry out hydro-thermal reaction 10-25h at 100-120 DEG C, reaction terminate after through filtering, washing, dry
Obtain material A；By in 2-methylimidazole addition ethanol, material A is stirring evenly and then adding into, reaction 30- is stirred at room temperature
50min, then through filtering, washing, being dried to obtain the modified 2-methylimidazole.
2. according to claim 1 containing the electrostatic spraying powder coating of modified 2-methylimidazole, it is characterised in that its raw material
In, hydrogenated bisphenol A epoxy resin, novolac epoxy resin, bicyclopentadiene dioxide, polyarylene sulfide resin, the weight ratio of nylon
It is 58-65：28-40：17-26：7-9：11-17.
3. the electrostatic spraying powder coating containing modified 2-methylimidazole according to claim 1 or claim 2, it is characterised in that double cyanogen
Amine, phthalic anhydride, the weight ratio of modified 2-methylimidazole are 2.5-3.7：0.2-0.7：0.08-0.13.
4., containing the electrostatic spraying powder coating of modified 2-methylimidazole according to any one of claim 1-3, its feature exists
In its raw material includes by weight：60 parts of hydrogenated bisphenol A epoxy resin, 40 parts of novolac epoxy resin, bicyclopentadiene dioxide
22 parts, 8 parts of polyarylene sulfide resin, 12 parts of nylon, 3.2 parts of dicyandiamide, 0.5 part of phthalic anhydride, modified 2-methylimidazole 0.1
Part, 3 parts of aluminium hydroxide, 2 parts of gas-phase silica, 8 parts of precipitation method barium sulfate, 2 parts of CNT, 8.5 parts of nano silicon, hydrogen
3 parts of magnesia, 4 parts of nano ceric oxide, 1 part of micro- wax powder, 1.7 parts of N- phenyl -3- TSL 8330s, levelling agent
0.3 part, 0.06 part of defoamer.
5., containing the electrostatic spraying powder coating of modified 2-methylimidazole according to any one of claim 1-4, its feature exists
In the modified 2-methylimidazole is prepared according to following technique：By weight by 100-120 parts of 1,2,4,5- benzene tetracarboxylic acids
Stirred in adding 500-800 parts of water with 3-15 parts of lanthanum nitrate, hydro-thermal reaction 15-20h then carried out at 105-115 DEG C,
React after terminating through filtering, washing, be dried to obtain material A；30-40 parts of 2-methylimidazole is added 300-500 parts by weight
In ethanol, be stirring evenly and then adding into 90-120 parts of material A, be stirred at room temperature reaction 35-40min, then through filtering, washing,
It is dried to obtain the modified 2-methylimidazole.
6., containing the electrostatic spraying powder coating of modified 2-methylimidazole according to any one of claim 1-5, its feature exists
In the modified 2-methylimidazole is prepared according to following technique：By weight by 110 part 1,2,4,5- benzene tetracarboxylic acids and 12
Part lanthanum nitrate stirs in adding 600 parts of water, then carries out hydro-thermal reaction 18h at 110 DEG C, reaction terminate after through filtering,
Wash, be dried to obtain material A；By weight by 35 parts of 2-methylimidazoles 400 parts of ethanol of addition, 100 are stirring evenly and then adding into
Part material A, is stirred at room temperature reaction 38min, then through filtering, washing, being dried to obtain the modified 2-methylimidazole.
7., containing the electrostatic spraying powder coating of modified 2-methylimidazole according to any one of claim 1-6, its feature exists
In the CNT is the CNT of carboxylated.
8., containing the electrostatic spraying powder coating of modified 2-methylimidazole according to any one of claim 1-7, its feature exists
In the average grain diameter of the nano silicon is 50-80nm；The average grain diameter of the nano ceric oxide is 20-50nm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108659678A (en) * | 2018-06-15 | 2018-10-16 | 山东兰生环保科技有限公司 | The epoxide powder coating and preparation method thereof of multilayer carbon nanotube enhancing |
| CN111378253A (en) * | 2018-12-29 | 2020-07-07 | 太阳油墨（苏州）有限公司 | Resin filler |
Citations (3)
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| CN108659678A (en) * | 2018-06-15 | 2018-10-16 | 山东兰生环保科技有限公司 | The epoxide powder coating and preparation method thereof of multilayer carbon nanotube enhancing |
| CN111378253A (en) * | 2018-12-29 | 2020-07-07 | 太阳油墨（苏州）有限公司 | Resin filler |
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Application publication date: 20170531 |