CN107674543A - A kind of flexible low-smoke halogen-free flame-retardant isolating powder and preparation method thereof - Google Patents
A kind of flexible low-smoke halogen-free flame-retardant isolating powder and preparation method thereof Download PDFInfo
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- CN107674543A CN107674543A CN201710957173.6A CN201710957173A CN107674543A CN 107674543 A CN107674543 A CN 107674543A CN 201710957173 A CN201710957173 A CN 201710957173A CN 107674543 A CN107674543 A CN 107674543A
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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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
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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
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/267—Magnesium carbonate
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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
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a kind of flexible low-smoke halogen-free flame-retardant isolating powdery paints, its raw material includes following component：Modified epoxy A:30 ~ 60 parts, modified epoxy B:10 ~ 30 parts, curing agent：15 ~ 40 parts, filler:0 ~ 30 part, fire retardant:5 ~ 20 parts, pigment:1 ~ 5 part, auxiliary agent:2 ~ 6 parts, wherein curing agent is dicyandiamide or phenolic hydroxyl group resin, the number is parts by weight, the flexible low-smoke halogen-free flame-retardant isolating powder of the present invention overcomes the shortcomings that conventional epoxy insulating powder is firmly crisp, perfectly it is applied to non-standard component and the painting of elbow is covered with, with stronger mechanical performance, while there is high flame retardant, be truly realized low smoke and zero halogen.
Description
Technical field
The present invention relates to a kind of flexible low-smoke halogen-free flame-retardant isolating powder and preparation method thereof, belong to field of functional coatings.
Background technology
Connection row is mainly used in the connection in high-tension electricity cabinet, there is higher requirement to electrical insulation properties and fire resistance,
In recent years with the popularization that powdery paints is applied, the multi-purpose epoxy insulation powder coating of connection row, there is good heat resistant
Property, wearability, chemical resistance and outstanding weatherability.Occur insulating powder on the market simultaneously to ftracture on bus now more
As, in addition, the shortcomings that epoxy insulation powder is firmly crisp high degree limit connection row geomery, except this, powdery paints
Main body is the big epoxy resin of easy firing smoke amount, potential safety hazard be present to being applied in high-tension electricity cabinet.So prepare a kind of machine
Tool performance is good, and the high coating material of insulating powder in use of fire resistance is very necessary.
The content of the invention
The purpose of the present invention is：A kind of flexible low-smoke halogen-free flame-retardant isolating powder is provided, there is higher mechanical performance, nothing
Halogen is fire-retardant, and burning fuming amount is small, fundamentally solves the problems, such as that insulating powder ftractures on bus, realizes bending and comes out
Close the application in cabinet, the volume for reducing switch cubicle of the miniaturization high degree of the row of connection；Another object of the present invention is
A kind of preparation method of flexible low-smoke halogen-free flame-retardant isolating powder is provided.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows：
A kind of flexible its raw material of low-smoke halogen-free flame-retardant isolating powder includes following component：
Modified epoxy A30~60 part
10~30 parts of modified epoxy B
Curing agent 15-40 parts
0~30 part of filler
10~20 parts of fire retardant
1~5 part of pigment
2~6 parts of auxiliary agent.
Preferably, the modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/
Eg, 100-120 DEG C of softening point range.
Preferably, the modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/
Eg, 80-100 DEG C of softening point range.
Preferably, the curing agent selects dicyandiamide or phenolic hydroxyl group resin, and dicyandiamide is promoted type dicy-curing agent, phenol
The hydroxyl value scope 220-280g/eg of hydroxy resin.
Preferably, for the curing agent from the phenolic hydroxyl group resin of two kinds of different hydroxyl values, its mass ratio is 2:1.
Preferably, the filler is ultra-fine barium sulfate, the mesh of mesh number 2000.
Preferably, the mixture that fire retardant is melamine cyanurate, hydromagnesite micro mist, montmorillonite micro mist compound, it is multiple
With ratio 3:1:1,2-5 μm of particle diameter.
Preferably, the pigment be resistance to high temperature oxidation, resistance to machine oil, the permanent bordeaux of chemical-resistant resistance, permanent yellow, phthalocyanine blue,
Phthalocyanine green, titanium dioxide or high-carbon black pigment.
Preferably, the auxiliary agent is brightener, levelling agent, antioxidant, charge adjusting agent, defoamer.
The method for preparing flexible low-smoke halogen-free flame-retardant isolating powder, it is characterised in that：Using following steps connected in order：
(1) by melamine cyanurate, hydromagnesite micro mist, montmorillonite micro mist according to 3:1:1 ratio weighs corresponding weight
Amount number is put into homogenizer stirs 10min with 800~900r/min, then adds brightener, levelling agent, antioxygen
Agent, charge adjusting agent, defoamer continue to stir 10min with 800~900r/min.
(2) ultra-fine barium sulfate is added in the mixture of step (1), 10min is stirred with 800~900r/min, makes it
It is sufficiently mixed uniformly；
(3) modified epoxy A, modified epoxy B, curing agent, pigment are weighed corresponding parts by weight and is added to
In homogenizer, 10min is stirred with 800~900r/min, is well mixed resin particle；
(4) mixture in (2), (3) step is passed through into A, B feeding bin feeding, twin-screw melting extrusion, melt zone respectively
80-90 DEG C of temperature, 100-120 DEG C of head extrusion temperature；
(5) melting extrusion mixture is in blocks by chilling roller extruding, and small fragment is ground into after cooling, is milled by air pure
Into powder, 140 mesh powders then are obtained by cyclone separator and screen cloth, finally go the removal of impurity by magnetic separation, obtain finished product
Powder.
It is using the beneficial effect of technical scheme：
The flexible distinctive pliability of low-smoke halogen-free flame-retardant isolating powder of the invention and outstanding mechanical performance are widened significantly
The application field of powdery paints；The anti-flammability of superelevation, 0.3mm test pieces can test V0 levels, almost non-combustible, burning by UL-94
Shi Fayan amounts are minimum, are the preferable new materials of electronic applications, in addition, flexible low-smoke halogen-free flame-retardant isolating powder preparation method is simple
Single, cost is cheap, has wide market prospects.
Powdery paints dispersing uniformity prepared by the above method is obviously improved, and each composition is given full play to the effect of itself,
Simultaneously effectively solve powdery paints storage it is unstable the shortcomings that.
Embodiment
In order to further appreciate that the present invention, it is illustrated with reference to specific embodiment, but the content of embodiment does not have
It is limited.
Embodiment 1
Flexible low-smoke halogen-free flame-retardant isolating powder, its raw material include following component：
30 parts, 20 parts of modified epoxy B (import is commercially available) of modified epoxy A (KD-213H of national capital chemical industry), solidification
10 parts of agent phenolic hydroxyl group resin aradur3082 (huntsman), 5 parts of phenolic hydroxyl group resin p201 (resolution), ultra-fine barium sulfate
0 part of (2000 mesh), 6 parts of melamine cyanurate (Jinan Thailand star), 2 parts of hydromagnesite micro mist (Xi Beili), montmorillonite micro mist
2 parts of (200 mesh), 2 parts of pigment (phthalocyanine green, high-carbon black pigment, titanium dioxide are adjusted according to actual color and matched), auxiliary agent (brightener,
Levelling agent, antioxidant, charge adjusting agent, defoamer) added according to the 1 ‰ of total amount, the number is parts by weight.
Modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, softening point model
Enclose 100-120 DEG C.
Modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, softening point model
Enclose 80-100 DEG C.
The particle diameter of melamine cyanurate, hydromagnesite micro mist and montmorillonite micro mist is 2-5 μm.
The preparation method of above-mentioned flexible low-smoke halogen-free flame-retardant isolating powder, including following steps connected in order：
1. by melamine cyanurate, hydromagnesite micro mist, montmorillonite micro mist according to 3：1：1 ratio weighs corresponding weight
Number put into homogenizer with 800~900r/min stir 10min, then add brightener, levelling agent, antioxidant,
Charge adjusting agent, defoamer continue to stir 10min with 800~900r/min.
2. ultra-fine barium sulfate is added in the mixture of step 1., 10min is stirred with 800~900r/min, fills it
Divide well mixed.
3. modified epoxy A, modified epoxy B, curing agent, pigment are weighed into corresponding parts by weight is added to height
In fast mixer, 10min is stirred with 800~900r/min, is well mixed resin particle.
4. mixture 2., 3. in step is passed through into A, B feeding bin feeding, twin-screw melting extrusion, melt zone temperature respectively
80-90 DEG C of degree, 100-120 DEG C of head extrusion temperature.
5. melting extrusion mixture is in blocks by chilling roller extruding, small fragment is ground into after cooling, is milled by air pure
Into powder, 140 mesh powders then are obtained by cyclone separator and screen cloth, finally go the removal of impurity by magnetic separation, obtain finished product
Powder.After tested, indices are included in table 1.
Embodiment 2
The step of with embodiment 1, difference are that the composition parts by weight of each raw material are that (state all changes modified epoxy A
The KD-213H of work) 60 parts, 30 parts of modified epoxy B (import is commercially available), curing agent phenolic hydroxyl group resin aradur3082
(huntsman) 20 parts, 10 parts of phenolic hydroxyl group resin p201 (resolution), 15 parts of ultra-fine barium sulfate (2000 mesh), melamine
6 parts of lithate (Jinan Thailand star), 2 parts of hydromagnesite micro mist (Xi Beili), 2 parts of montmorillonite micro mist (200 mesh), pigment (permanent bordeaux,
High-carbon black pigment, titanium dioxide are adjusted according to actual color and matched) 2 parts, auxiliary agent (brightener, levelling agent, antioxidant, electric charge regulation
Agent, defoamer) added according to the 1 ‰ of total amount, the number is parts by weight.
Modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, softening point model
Enclose 100-120 DEG C.
Modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, softening point model
Enclose 80-100 DEG C.
The particle diameter of melamine cyanurate, hydromagnesite micro mist and montmorillonite micro mist is 2-5 μm.
Preparation method in embodiment 2 is the same as embodiment 1.
After tested, indices are included in table 1.
Embodiment 3
The step of with embodiment 1, difference are that the composition parts by weight of each raw material are that (state all changes modified epoxy A
The KD-213H of work) 60 parts, 10 parts of modified epoxy B (import is commercially available), curing agent phenolic hydroxyl group resin aradur3082
(huntsman) 10 parts, 5 parts of phenolic hydroxyl group resin p201 (resolution), 10 parts of ultra-fine barium sulfate (2000 mesh), melamine
9 parts of lithate (Jinan Thailand star), 3 parts of hydromagnesite micro mist (Xi Beili), 3 parts of montmorillonite micro mist (200 mesh), pigment (phthalocyanine blue,
High-carbon black pigment, titanium dioxide are adjusted according to actual color and matched) 2 parts, auxiliary agent (brightener, levelling agent, antioxidant, electric charge regulation
Agent, defoamer) added according to the 1 ‰ of total amount, the number is parts by weight.
Modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, softening point model
Enclose 100-120 DEG C.
Modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, softening point model
Enclose 80-100 DEG C.
The particle diameter of melamine cyanurate, hydromagnesite micro mist and montmorillonite micro mist is 2-5 μm.
Preparation method in embodiment 3 is the same as embodiment 1.
After tested, indices are included in table 1.
Embodiment 4
The step of with embodiment 1, difference are that the composition parts by weight of each raw material are that (state all changes modified epoxy A
The KD-213H of work) 30 parts, 30 parts of modified epoxy B (import is commercially available), curing agent phenolic hydroxyl group resin aradur3082
(huntsman) 24 parts, 12 parts of phenolic hydroxyl group resin p201 (resolution), 30 parts of ultra-fine barium sulfate (2000 mesh), melamine
12 parts of lithate (Jinan Thailand star), 4 parts of hydromagnesite micro mist (Xi Beili), 4 parts of montmorillonite micro mist (200 mesh), pigment are (forever solid
Huang, high-carbon black pigment, titanium dioxide are adjusted according to actual color and matched) 2 parts, auxiliary agent (adjust by brightener, levelling agent, antioxidant, electric charge
Save agent, defoamer) added according to the 1 ‰ of total amount, the number is parts by weight.
Modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, softening point model
Enclose 100-120 DEG C.
Modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, softening point model
Enclose 80-100 DEG C.
The particle diameter of melamine cyanurate, hydromagnesite micro mist and montmorillonite micro mist is 2-5 μm.
Preparation method in embodiment 4 is the same as embodiment 1.
After tested, indices are included in table 1.
Embodiment 5
The step of with embodiment 1, difference are that the composition parts by weight of each raw material are that (state all changes modified epoxy A
The KD-213H of work) 50 parts, 30 parts of modified epoxy B (import is commercially available), curing agent phenolic hydroxyl group resin aradur3082
(huntsman) 24 parts, 12 parts of phenolic hydroxyl group resin p201 (resolution), 5 parts of ultra-fine barium sulfate (2000 mesh), melamine
12 parts of lithate (Jinan Thailand star), 4 parts of hydromagnesite micro mist (Xi Beili), 4 parts of montmorillonite micro mist (200 mesh), pigment (phthalocyanine
Green, high-carbon black pigment, titanium dioxide is adjusted according to actual color and matched) 2 parts, auxiliary agent (adjust by brightener, levelling agent, antioxidant, electric charge
Save agent, defoamer) added according to the 1 ‰ of total amount, the number is parts by weight.
Modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, softening point model
Enclose 100-120 DEG C.
Modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, softening point model
Enclose 80-100 DEG C.
The particle diameter of melamine cyanurate, hydromagnesite micro mist and montmorillonite micro mist is 2-5 μm.
Preparation method in embodiment 5 is the same as embodiment 1.
After tested, indices are included in table 1.
Embodiment 6
The step of with embodiment 1, difference are that the composition parts by weight of each raw material are that (state all changes modified epoxy A
The KD-213H of work) 60 parts, 30 parts of modified epoxy B (import is commercially available), curing agent promoted type dicyandiamide P104
(resolution) 40 parts, 25 parts of ultra-fine barium sulfate (2000 mesh), 9 parts of melamine cyanurate (Jinan Thailand star), hydromagnesite
3 parts of micro mist (Xi Beili), 3 parts of montmorillonite micro mist (200 mesh), (phthalocyanine green, high-carbon black pigment, titanium dioxide is according to actual face for pigment
Color adjustment matches) 2 parts, auxiliary agent (brightener, levelling agent, antioxidant, charge adjusting agent, defoamer) according to total amount 1 ‰ plus
Enter, the number is parts by weight.
Modified epoxy A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, softening point model
Enclose 100-120 DEG C.
Modified epoxy B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, softening point model
Enclose 80-100 DEG C.
The particle diameter of melamine cyanurate, hydromagnesite micro mist and montmorillonite micro mist is 2-5 μm.
Preparation method in embodiment 6 is the same as embodiment 1.
After tested, indices are included in table 1.
Table 1
The mesh number of ultra-fine barium sulfate powder is the mesh of 2000 mesh -2500 in embodiment 1-6, is preferably 2000 mesh in the present invention,
Remaining suitable mesh number (such as " 2100 mesh, 2200 mesh, 2300 mesh, 2400 mesh ") each falls within protection scope of the present invention.
The hydroxyl value scope 220-280g/eg of phenolic hydroxyl group resin in the present invention, such as：230g/eg, 240g/eg, 250g/eg,
260g/eg, 270g/eg each fall within protection scope of the present invention.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (10)
1. a kind of flexible low-smoke halogen-free flame-retardant isolating powder, it is characterised in that its raw material includes following component：
Modified epoxy A30 ~ 60 part
10 ~ 30 parts of modified epoxy B
Curing agent 15-40 parts
0 ~ 30 part of filler
10 ~ 20 parts of fire retardant
1 ~ 5 part of pigment
2 ~ 6 parts of auxiliary agent.
A kind of 2. flexible low-smoke halogen-free flame-retardant isolating powder according to claim 1, it is characterised in that：The modified epoxy
Resin A is o-cresol formaldehyde modified epoxy, epoxide equivalent scope 720-1000g/eg, 100-120 DEG C of softening point range.
A kind of 3. flexible low-smoke halogen-free flame-retardant isolating powder according to claim 1, it is characterised in that：The modified epoxy
Resin B is acrylonitrile butadiene rubber modified epoxy resin, epoxide equivalent scope 175-300g/eg, 80-100 DEG C of softening point range.
A kind of 4. flexible low-smoke halogen-free flame-retardant isolating powder according to claim 1, it is characterised in that：The curing agent choosing
With dicyandiamide or phenolic hydroxyl group resin, dicyandiamide is promoted type dicy-curing agent, the hydroxyl value scope 220-280g/ of phenolic hydroxyl group resin
eg。
A kind of 5. flexible low-smoke halogen-free flame-retardant isolating powder according to claim 4, it is characterised in that：The curing agent choosing
With the phenolic hydroxyl group resin of two kinds of different hydroxyl values, its mass ratio is 2:1.
6. flexible low-smoke halogen-free flame-retardant isolating powdery paints according to claim 1, it is characterised in that：The filler is ultra-fine
Barium sulfate, the mesh of mesh number 2000.
7. flexible low-smoke halogen-free flame-retardant isolating powdery paints according to claim 1, it is characterised in that fire retardant is melamine
Aminuria hydrochlorate, hydromagnesite micro mist, the mixture of montmorillonite micro mist compounding, compound proportion 3:1:1,2-5 μm of particle diameter.
8. flexible low-smoke halogen-free flame-retardant isolating powdery paints according to claim 1, it is characterised in that：The pigment is anti-height
Warm oxidation, resistance to machine oil, the permanent bordeaux of chemical-resistant resistance, permanent yellow, phthalocyanine blue, phthalocyanine green, titanium dioxide or high-carbon black pigment.
9. flexible low-smoke halogen-free flame-retardant isolating powdery paints according to claim 1, it is characterised in that：The auxiliary agent is light
Agent, levelling agent, antioxidant, charge adjusting agent, defoamer.
10. prepare the method for the flexible low-smoke halogen-free flame-retardant isolating powder as described in any one in claim 1-9, its feature
It is：Using following steps connected in order：
（1）By melamine cyanurate, hydromagnesite micro mist, montmorillonite micro mist according to 3:1:1 ratio weighs corresponding parts by weight
Number is put into homogenizer and stirs 10min with 800 ~ 900r/min, then adds brightener, levelling agent, antioxidant, electric charge
Conditioning agent, defoamer continue to stir 10min with 800 ~ 900r/min.
（2）Ultra-fine barium sulfate is added to step（1）Mixture in, 10min is stirred with 800 ~ 900r/min, makes it fully mixed
Close uniform；
（3）Modified epoxy A, modified epoxy B, curing agent, pigment are weighed into corresponding parts by weight to be added at a high speed
In mixer, 10min is stirred with 800 ~ 900r/min, is well mixed resin particle；
（4）Will（2）、（3）Mixture in step passes through A, B feeding bin feeding, twin-screw melting extrusion, melt zone temperature respectively
80-90 DEG C, 100-120 DEG C of head extrusion temperature；
（5）Melting extrusion mixture is in blocks by chilling roller extruding, and small fragment is ground into after cooling, is milled by air pure into powder
End, 140 mesh powders then are obtained by cyclone separator and screen cloth, finally go the removal of impurity by magnetic separation, obtain finished powder.
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| CN108531009A (en) * | 2018-03-28 | 2018-09-14 | 江苏江南绝缘粉末有限公司 | A kind of valve plate resistant hydrophobic coating material of insulating powder in use and preparation method thereof |
| CN110194923A (en) * | 2019-07-02 | 2019-09-03 | 江苏江南绝缘粉末有限公司 | A kind of cold-hot sudden turn of events insulating powder and preparation method thereof |
| CN110256936A (en) * | 2019-05-08 | 2019-09-20 | 珠海顺鑫电气设备有限公司 | A kind of high pressure resistant, waterproof bus duct and preparation method thereof |
| CN113527981A (en) * | 2021-08-31 | 2021-10-22 | 江苏江南绝缘粉末有限公司 | Thin-coating high-humidity-resistant heat-insulating powder and preparation method thereof |
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Effective date of registration: 20180412 Address after: 213300 1 building, South Ring Road, industrial park, Shang Xing Town, Liyang, Jiangsu, 1 Applicant after: Jiangsu Jiangnan insulating powder Co., Ltd. Address before: 213371 1, South Ring Road, industrial park, Shang Xing Town, Liyang, Changzhou, Jiangsu, 1 Applicant before: Liyang Jiangnan insulation powder factory |
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Application publication date: 20180209 |