CN102408545B - Resin compound used for sealing rare earth permanent magnet coreless energy-saving motor - Google Patents
Resin compound used for sealing rare earth permanent magnet coreless energy-saving motor Download PDFInfo
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- CN102408545B CN102408545B CN2011103185491A CN201110318549A CN102408545B CN 102408545 B CN102408545 B CN 102408545B CN 2011103185491 A CN2011103185491 A CN 2011103185491A CN 201110318549 A CN201110318549 A CN 201110318549A CN 102408545 B CN102408545 B CN 102408545B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, which is characterized by comprising materials such as epoxy resin, phenolic resin, inorganic padding and glass fiber filler. The epoxy resin is one or mixture from the epoxy resin expressed by formula (1), formula (2) or formula (3); the phenolic resin is one or mixture from the formula (4), formula (5), formula (6) and formula (7); the epoxy resin and the phenolic resin respectively account for 3-20 percent of the total mass; the inorganic padding accounts for 55-90 percent ofthe total mass and the glass fiber filler account for 0.5-10 percent of the total mass. The material prescription and proportion are optimized to obtain a resin compound with excellent flowability, quick curing rate and good insulation performance. The gelation time is 50-150s and the flowlength is larger than 180cm. The resin compound is mainly suitable for sealing rare earth permanent magnet coreless motors. During production, an external release agent is not needed to be coated on the surface of a die.
Description
Technical field
The present invention relates to a kind of composition epoxy resin, particularly a kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor.
Background technology
Rare earth permanent magnetic non-iron-core motor is a kind of new special motor that represents the electromechanics trade future thrust, its adopt iron-core-free, brushless, without magnetic damping, rare earth permanent magnet generation technology, change conventional motors and used siliconized plate and winding stator structure, in conjunction with the electronic intelligence converter technique of independent research, electric system efficient is brought up to more than 95%.Rare earth permanent magnetic non-iron-core motor is a great innovation, and technical realization the " three is large " broken through, the one, compare with the design of conventional radial magnetic field structure, and adopted the axial magnetic field structure design, increase substantially power density and torque volume ratio.The 2nd, adopt novel winding technique, high voltage precision die cast and macromolecular material, effectively reduce the winding copper loss.The 3rd, do not use siliconized plate as the stator and rotor core material, eliminated magnetic damping and iron loss, reduced driving power, reduced the iron loss pyrotoxin.It has efficient electricity-saving, light material-saving, the characteristics that reliability is high.
Yet this specific type of electric machine need to seal its novel wound rotor structure, thereby improves its insulating property, waterproof, protection against the tide, dustproof, and reliable, temperature rise is low, has improved the environmental compatibility under the extreme condition.
When sealing for the wound rotor structure of motor traditionally, usually adopt the epoxy casting material to pour into a mould, solidify rear sealing.This sealing material and mode are owing to using the vacuum high-temperature cast, mould material viscosity is very low, sealing rear motor good sealing effect, pore is few, but its technological process required time reached more than 8 hours, the mobility requirement during simultaneously for satisfied cast, and in mould material, the addition of inorganic fillings is few, although its insulating property are better than general macromolecular compound, still belong to general.When pouring into a mould simultaneously, mould need to use external release agent to apply, and has also reduced production efficiency.
As mentioned above, in order to enhance productivity, to reduce production costs and satisfy the product insulating property, fast in the urgent need to a kind of curing speed, the better sealing material of insulating property.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, and a kind of good fluidity is provided, and curing speed is fast, the resin combination of the rare earth permanent magnetic non-iron-core motor sealing use of good insulation preformance.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, is characterized in: it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is by one or more mixtures in the epoxy resin of formula [1], [2] or formula [3] expression;
Formula [1]
Formula [2]
Formula [3]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
Described resol is by one or more mixtures that form in formula [4], [5], [6] and formula [7];
Formula [4]
Formula [5]
Formula [6]
Formula [7]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 9-15um, and length is 50um ~ 1mm;
Epoxy resin accounts for 3 ~ 20% of resin combination total mass;
Resol accounts for 3 ~ 20% of resin combination total mass;
Described mineral filler accounts for 55 ~ 90% of resin combination total mass;
Described curing catalyst accounts for 0.1 ~ 2% of resin combination total mass;
Described coupling agent accounts for 0.1 ~ 1.5% of resin combination total mass;
Described stress relief agent accounts for 0.1 ~ 2% of resin combination total mass;
Described tinting material accounts for 0.05 ~ 0.5% of resin combination total mass;
Described fire retardant accounts for 3 ~ 15% of resin combination total mass;
Described releasing agent accounts for 0.1 ~ 1% of resin combination total mass;
Described glass fibre weighting agent accounts for 0.5 ~ 10% of resin combination total mass.
In above-described resin combination technical scheme, preferably technical scheme is:
1, described epoxy resin is the mixture of any 2 kinds of compositions in formula [1], [2], [3].During mixing, its blending ratio can be selected on demand.
2, described epoxy resin is the mixture of the composition of formula [1], formula [2] and formula [3], and wherein: formula [1] content accounts for 40 ~ 60% of mixture quality, and formula [2] content accounts for 20 ~ 40% of mixture quality, and formula [3] content accounts for 10 ~ 30% of mixture quality.Further preferred: formula [1] content accounts for 50% of mixture quality, and formula [2] content accounts for 30% of mixture quality, and formula [3] content accounts for 20% of mixture quality.
3, described resol is the mixture that is comprised of formula [4] and formula [5], and its Chinese style [4] content accounts for 1 ~ 10% of resin combination total mass.
4, described mineral filler is spherical and dihedral; The scope of its meta particle diameter is 15 ~ 40um, and maximum particle diameter is 150um.
5, described mineral filler is fused silica, crystalline silica or aluminum oxide.
6, the fire retardant that uses in the present invention can be the conventional environment friendly flame retardant that uses in this area, as metal hydroxides, nitrogenous class, boracic class, contain Phosphorus etc.Described fire retardant is preferably one or more the mixture in metal hydroxides, melamine class, zinc borate, zinc molybdate, as: magnesium hydroxide, aluminium hydroxide, zinc borate, zinc molybdate, phosphoric acid ester etc.
7, described releasing agent is one or more the mixture in oxidized form or Non-oxidized polyethylene wax, carnauba wax, stearic acid, esterification or saponification montanin wax.
8, in the number of the phenolic hydroxyl of resol and epoxy resin, the ratio of epoxide group number is 0.5-2.Further preferred 0.7 ~ 1.3.
9, in the present invention, epoxy resin used and the melt viscosity of 150 ℃ of resol are considered from mobility, are preferably below 2 pools, more preferably below 1 pool, more preferably below 0.5 pool.The melt viscosity here represents the viscosity with ICI cone-and-plate viscometer mensuration.
10, the diameter of the glass fibre weighting agent in the present invention is preferably 9 um, 11um, 13um, 15um, and length is 50um ~ 1mm.Consider from mobility, more preferably 11um and 13um, length is 100um ~ 0.2mm.
Curing catalyst in the present invention has no particular limits, and that can enumerate has triphenylphosphine, DBU, imidazoles and azoles azole derivative and its esters and other curing catalysts.Consider from speed of response and shelf lives angle, preferably triphenylphosphine, DBU and imidazole derivative.
Coupling agent in the present invention is mainly organo silane coupling agent, and these organo silane coupling agents can be with amino, epoxy group(ing), sulfydryl, alkyl, vinyl etc.These materials can use separately one or more mixture wherein.Preferably epoxy group(ing) and sulfydryl.Coupling agent content less than 2% of total mass, be preferably 0.3 ~ 1.5%.
Stress relief agent in the present invention is mainly the rubber-like material, and as CTBN, ATBN and methyl acrylic ester, silicone oil or polysiloxane rubber can use one or more mixture.Be preferably the mixture that gathers at silicone rubber and silicone oil.
Tinting material in the present invention is preferably carbon black.
In the present invention, (H) releasing agent is one of key of boosting productivity, and need to not carry out the coating of external release agent on mould when it can make sealing, thereby omit a procedure.Releasing agent is releasing agent commonly used, montanin wax, oxidation or the non-oxidized polyethylene wax etc. for carnauba wax, stearic acid, esterification or saponification that can enumerate, but be not limited to these.Its total content is generally less than 1% scope.
Mineral filler in the present invention is mainly in order to improve insulativity, to improve simultaneously wear resistance, the linear expansivity after the control sealing material solidifies, and the effect that reduces costs.As long as therefore can reach the inorganics of this purpose all can add.Preferred molten silicon-dioxide, crystalline silica, aluminum oxide, aluminium nitride, zircon, Calucium Silicate powder, titanium dioxide etc.Consider from cost and mobility, further preferably fused silica, crystalline silica and aluminum oxide.These mineral fillers can be used dihedral, also can use spherical or both mixture.The particle diameter of mineral filler considers from mobility, and more preferably the meta particle diameter is 20 ~ 30um, and maximum particle diameter is 125um.
Resin combination of the present invention, through after mixing cooling crush, its gel time is 50 ~ 200s, 70 ~ 150s preferably, helicoidal flow length is greater than 180cm.Preferably greater than 240cm.
Resin combination of the present invention can adopt the ordinary method preparation.
Compared with prior art, the present invention has carried out preferably raw material prescription and proportioning thereof, obtained that good fluidity, curing speed are fast, the resin combination of good insulation preformance, the gel time of resin combination of the present invention is 50 ~ 150s, length of flow is greater than 180cm, mainly be suitable for rare earth permanent magnetic non-iron-core motor sealing use, when producing, die surface need not to carry out outer coating external release agent.
Embodiment
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not consist of its Copyright law.
Embodiment 1.A kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is the mixture by the epoxy resin of formula [1], [2] and formula [3] expression;
Formula [1]
Formula [2]
Formula [3]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
The mixture that described resol is comprised of formula [4] and [5];
Formula [4]
Formula [5]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 13um, and length is 200um;
Epoxy resin accounts for 12% of resin combination total mass;
Resol accounts for 8% of resin combination total mass; Its Chinese style [4] accounts for 1%;
Described mineral filler accounts for 69.9% of resin combination total mass;
Described curing catalyst accounts for 0.5% of resin combination total mass;
Described coupling agent accounts for 0. 5% of resin combination total mass;
Described stress relief agent accounts for 0.5% of resin combination total mass;
Described tinting material accounts for 0.1% of resin combination total mass;
Described fire retardant accounts for 5% of resin combination total mass;
Described releasing agent accounts for 0.5% of resin combination total mass;
Described glass fibre weighting agent accounts for 3% of resin combination total mass.
Embodiment 2.A kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is the epoxy resin composition by formula [1], [2] and formula [3] expression;
Formula [1]
Formula [2]
Formula [3]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
Described resol is by any three kinds of mixtures that form in formula [4], [5], [6] and formula [7];
Formula [4]
Formula [5]
Formula [6]
Formula [7]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 11um, and length is 100um;
Epoxy resin accounts for 3% of resin combination total mass;
Resol accounts for 3% of resin combination total mass;
Described mineral filler accounts for 90% of resin combination total mass;
Described curing catalyst accounts for 0.1% of resin combination total mass;
Described coupling agent accounts for 0.1% of resin combination total mass;
Described stress relief agent accounts for 0.1% of resin combination total mass;
Described tinting material accounts for 0.1% of resin combination total mass;
Described fire retardant accounts for 3% of resin combination total mass;
Described releasing agent accounts for 0.1% of resin combination total mass;
Described glass fibre weighting agent accounts for 0.5% of resin combination total mass.
Embodiment 3.A kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is a kind of by in the epoxy resin of formula [1], [2] or [3] expression;
Formula [1]
Formula [2]
Formula [3]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
Described resol is a kind of by in formula [4], [5], [6] or formula [7];
Formula [4]
Formula [5]
Formula [6]
Formula [7]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 9um, and length is 50um;
Epoxy resin accounts for 3% of resin combination total mass;
Resol accounts for 10% of resin combination total mass;
Described mineral filler accounts for 83.05% of resin combination total mass;
Described curing catalyst accounts for 0.1% of resin combination total mass;
Described coupling agent accounts for 0.1% of resin combination total mass;
Described stress relief agent accounts for 0.1% of resin combination total mass;
Described tinting material accounts for 0.05% of resin combination total mass;
Described fire retardant accounts for 3% of resin combination total mass;
Described releasing agent accounts for 0.1% of resin combination total mass;
Described glass fibre weighting agent accounts for 0.5% of resin combination total mass.
Embodiment 4.A kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is by any two mixture that forms in the epoxy resin of formula [1], [2] and formula [3] expression;
Formula [1]
Formula [2]
Formula [3]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
Described resol is by any two mixture that forms in formula [4], [5], [6] and formula [7];
Formula [4]
Formula [5]
Formula [6]
Formula [7]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 15um, and length is 1mm;
Epoxy resin accounts for 8% of resin combination total mass;
Resol accounts for 13% of resin combination total mass;
Described mineral filler accounts for 55% of resin combination total mass;
Described curing catalyst accounts for 2% of resin combination total mass;
Described coupling agent accounts for 1.5% of resin combination total mass;
Described stress relief agent accounts for 2% of resin combination total mass;
Described tinting material accounts for 0.5% of resin combination total mass;
Described fire retardant accounts for 10% of resin combination total mass;
Described releasing agent accounts for 1% of resin combination total mass;
Described glass fibre weighting agent accounts for 7% of resin combination total mass.
Embodiment 5.A kind of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is the composition epoxy resin by formula [1] and [2] expression;
Formula [1]
Formula [2]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
The mixture that described resol is comprised of formula [4], [5], [6] and formula [7];
Formula [4]
Formula [5]
Formula [6]
Formula [7]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 11um, and length is 500um;
Epoxy resin accounts for 5% of resin combination total mass;
Resol accounts for 5% of resin combination total mass;
Described mineral filler accounts for 78% of resin combination total mass;
Described curing catalyst accounts for 1% of resin combination total mass;
Described coupling agent accounts for 1% of resin combination total mass;
Described stress relief agent accounts for 1% of resin combination total mass;
Described tinting material accounts for 0.2% of resin combination total mass;
Described fire retardant accounts for 5% of resin combination total mass;
Described releasing agent accounts for 0.8% of resin combination total mass;
Described glass fibre weighting agent accounts for 3% of resin combination total mass.
Embodiment 6.All the other are with embodiment 1; Only formula [4] content accounts for 5% of resin combination total mass.
Embodiment 7.All the other are with embodiment 2; Only formula [1] content accounts for 40% of mixture quality, and formula [2] content accounts for 40% of mixture quality, and formula [3] content accounts for 20% of mixture quality.
Embodiment 8.All the other are with embodiment 2; Only formula [1] content accounts for 60% of mixture quality, and formula [2] content accounts for 30% of mixture quality, and formula [3] content accounts for 10% of mixture quality.
Embodiment 9.All the other are with embodiment 2; Only formula [1] content accounts for 50% of mixture quality, and formula [2] content accounts for 20% of mixture quality, and formula [3] content accounts for 30% of mixture quality.
Embodiment 10.In any one described resin combination of embodiment 1-9: described mineral filler is spherical and dihedral; The scope of its meta particle diameter is 15 ~ 40um, and maximum particle diameter is 150um.
Embodiment 11.In any one described resin combination of embodiment 1-9: described mineral filler is fused silica, crystalline silica or aluminum oxide.
Embodiment 12.In any one described resin combination of embodiment 1-9: described fire retardant is one or more the mixture in metal hydroxides, melamine class, zinc borate, zinc molybdate.
Embodiment 13.In any one described resin combination of embodiment 1-9: described releasing agent is one or more the mixture in oxidized form or Non-oxidized polyethylene wax, carnauba wax, stearic acid, esterification or saponification montanin wax.
Embodiment 14.In any one described resin combination of embodiment 1-9: in the number of the phenolic hydroxyl of resol and epoxy resin, the ratio of epoxide group number is 0.5-2.
Embodiment 15.The resin compound used for sealing rare earth permanent magnet coreless energy-saving motor experiment.
Below the evaluation in the experiment is carried out according to following method:
Gel time: the 5.3rd gelation time by SJ/T 11197-1999 epoxy molding plastic measured gelation time (s).Length of flow: measure the distance (cm) that flows by the 5.2nd helicoidal flow length of SJ/T 11197-1999 epoxy molding plastic.Flame retardant resistance: the 5.12nd flame retardant resistance of pressing SJ/T 11197-1999 epoxy molding plastic measured the flame retardant resistance of material.Specific inductivity: press the 5.9th specific inductivity of SJ/T11197-1999 epoxy molding plastic, the specific inductivity that dielectric loss is measured material.
The formula of resin compound used for sealing rare earth permanent magnet coreless energy-saving motor and proportioning (percentage composition of total mass) see the following form, and after the preparation, each performance perameter of resulting composition sees the following form according to a conventional method:
| Experimental group | A | B | C | D | E | F | G | H |
| Silica flour I (mean particle size 25um, dihedral) | 55 | 70 | 70 | 55 | 52 | |||
| Silica flour II (mean particle size 20um, spherical) | 77 | 71 | 18 | 77 | 28 | |||
| Silica flour III (median size 20um, crystallization) | ? | 8 | 7 | |||||
| Epoxy resin formula [1] | 15 | 7 | 8 | 6 | 5 | 4 | 1 | 2 |
| Epoxy resin formula [2] | 4 | 5 | 2 | 4 | 4 | |||
| Epoxy resin formula [3] | 2 | 2 | 3 | 1 | ||||
| Resol formula [4] | 9 | |||||||
| Resol formula [5] | 5 | 3 | 2 | 4 | 3 | 2 | ||
| Resol formula [6] | 5 | 5 | 3 | 2 | 3 | |||
| Resol formula [7] | 1.5 | 1 | 4 | 5 | 1 | 1 | ||
| DBU | 0.6 | 0.3 | ||||||
| TPP | 0.4 | 0.25 | ||||||
| The diethyl imidazoles | 0.3 | 0.3 | 0.2 | 0.2 | ||||
| KH560 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| CTBN | 0.8 | 0.5 | 0.5 | 0.5 | 0.6 | 0.5 | 0.6 | 0.6 |
| Carbon black | 0.3 | 0.3 | 0.3 | 0.3 | 0.25 | 0.3 | 0.3 | 0.3 |
| Magnesium hydroxide | 10 | 8 | 5 | 4 | ||||
| Zinc borate | 5 | |||||||
| Melamine class | 5 | 5 | 4 | 2 | 3 | 3 | 5 | |
| Carnauba wax | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Stearic acid | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | |
| Polyethylene wax | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Glass fibre | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 2 |
| Gel time (s) | 65 | 73 | 70 | 90 | 95 | 105 | 120 | 125 |
| Length of flow (cm) | 200 | 230 | 226 | >240 | >240 | >240 | >240 | >240 |
| Flame retardant test (UL-94) 1/8 inches | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| Specific inductivity | 3.85 | 3.8 | 3.9 | 3.83 | 3.76 | 3.65 | 3.6 | 3.62 |
| Set time in motor seal technique (minute) | 15 | 15 | 15 | 15 | 17 | 17 | 20 | 20 |
Claims (6)
1. resin compound used for sealing rare earth permanent magnet coreless energy-saving motor, it is characterized in that: it comprises epoxy resin, resol, curing catalyst, coupling agent, stress relief agent, tinting material, fire retardant, releasing agent, mineral filler and glass fibre weighting agent;
Described epoxy resin is by formula [1] or adds one or both represented epoxy resin or its mixture in formula [2], formula [3] again;
Formula [1]
Formula [2]
Formula [3]
Wherein: G is
, R is hydrogen atom or the alkyl that the 1-12 carbon atom is arranged, a plurality of R can be identical or differ from one another; N=1 ~ 10;
When epoxy resin was the mixture of composition of formula [1], formula [2] and formula [3]: formula [1] content accounted for 40 ~ 60% of mixture quality, and formula [2] content accounts for 20 ~ 40% of mixture quality, and formula [3] content accounts for 10 ~ 30% of mixture quality;
Described resol is by one or more mixtures that form in formula [4], [5], [6] and formula [7];
Formula [4]
Formula [5]
Formula [6]
Formula [7]
N=1 ~ 10 wherein;
Described glass fibre weighting agent is glass fiber powder, and its diameter is 9-15 μ m, and length is 50 μ m ~ 1mm;
Epoxy resin accounts for 3 ~ 20% of resin combination total mass;
Resol accounts for 3 ~ 20% of resin combination total mass;
Described mineral filler accounts for 55 ~ 90% of resin combination total mass;
Described curing catalyst accounts for 0.1 ~ 2% of resin combination total mass;
Described coupling agent accounts for 0.1 ~ 1.5% of resin combination total mass;
Described stress relief agent accounts for 0.1 ~ 2% of resin combination total mass;
Described tinting material accounts for 0.05 ~ 0.5% of resin combination total mass;
Described fire retardant accounts for 3 ~ 15% of resin combination total mass;
Described releasing agent accounts for 0.1 ~ 1% of resin combination total mass;
Described glass fibre weighting agent accounts for 0.5 ~ 10% of resin combination total mass;
Described mineral filler is fused silica, crystalline silica or aluminum oxide.
2. resin combination according to claim 1 is characterized in that: the mixture of described resol for being comprised of formula [4] and formula [5], its Chinese style [4] content accounts for 1 ~ 10% of resin combination total mass.
3. resin combination according to claim 1, it is characterized in that: described mineral filler is spherical and dihedral; The scope of its meta particle diameter is 15 ~ 40 μ m, and maximum particle diameter is 150 μ m.
4. resin combination according to claim 1 is characterized in that: described fire retardant is one or more the mixture in metal hydroxides, melamine class, zinc borate, zinc molybdate.
5. resin combination according to claim 1 is characterized in that: described releasing agent is one or more the mixture in oxidized form or Non-oxidized polyethylene wax, carnauba wax, stearic acid, esterification or saponification montanin wax.
6. resin combination according to claim 1, it is characterized in that: in the number of the phenolic hydroxyl of resol and epoxy resin, the ratio of epoxide group number is 0.5-2.
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| CN102911479B (en) * | 2012-11-14 | 2015-01-07 | 江苏华海诚科新材料有限公司 | High heat conduction epoxy resin composition applicable to fully wrapped devices and preparation method |
| CN105462173A (en) * | 2015-12-25 | 2016-04-06 | 科化新材料泰州有限公司 | Environment-friendly epoxy resin composition and preparation method thereof |
| CN107163503B (en) * | 2017-06-02 | 2020-04-07 | 江苏华海诚科新材料股份有限公司 | Epoxy resin composition suitable for packaging photoelectric coupler |
| CN108456829A (en) * | 2018-02-26 | 2018-08-28 | 合肥尚强电气科技有限公司 | A kind of transformer silicon steel sheet and preparation method thereof |
| US20200391287A1 (en) * | 2018-02-28 | 2020-12-17 | Hitachi Chemical Company, Ltd. | Compound powder |
| CN110836297A (en) * | 2018-08-16 | 2020-02-25 | 中国石油化工股份有限公司 | Hose connector and collision connecting method for repairing old pipeline |
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| CN1390246A (en) * | 1999-12-08 | 2003-01-08 | 日本电气株式会社 | Flame-retardant epoxy resin composition and liminate made with same |
| CN1847308A (en) * | 2005-04-04 | 2006-10-18 | 信越化学工业株式会社 | Flame retardant and an epoxy resin composition comprising the same for encapsulating semiconductor devices |
| CN101370870A (en) * | 2006-01-23 | 2009-02-18 | 日立化成工业株式会社 | Epoxy resin molding material for sealing and electronic component device |
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| US20110263754A1 (en) * | 2009-01-06 | 2011-10-27 | Dow Global Technologies Llc | Metallic compounds in non-brominated flame retardant epoxy resins |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1390246A (en) * | 1999-12-08 | 2003-01-08 | 日本电气株式会社 | Flame-retardant epoxy resin composition and liminate made with same |
| CN1847308A (en) * | 2005-04-04 | 2006-10-18 | 信越化学工业株式会社 | Flame retardant and an epoxy resin composition comprising the same for encapsulating semiconductor devices |
| CN101370870A (en) * | 2006-01-23 | 2009-02-18 | 日立化成工业株式会社 | Epoxy resin molding material for sealing and electronic component device |
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