CN108440907A - A kind of preparation method of composite material with high dielectric property - Google Patents
A kind of preparation method of composite material with high dielectric property Download PDFInfo
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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
- C08L63/00—Compositions of epoxy resins; Compositions of derivatives of epoxy resins
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- 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
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- 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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- 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 present invention relates to a kind of preparation methods of composite material with high dielectric property, including high dielectric filler is added in difunctional epoxy systems, and 130 DEG C are stirred 20 minutes, then at 95 DEG C, simple function group epoxy systems, nano alumina particles are added, stirs 130 minutes, obtains glue;It is 60% to adjust glue solid content with propylene glycol methyl ether acetate, then glass cloth is immersed in glue, then after heated drying, obtain composite material with high dielectric property, is protruded with excellent flame retardant property, heat resistance, especially dielectric constant.
Description
Technical field
The invention belongs to electronics technical field of composite materials, and in particular to a kind of preparation side of composite material with high dielectric property
Method.
Background technology
With the continuous development of science and technology, the application of polymer-based composite is more and more extensive.Meanwhile each application
Also to different materials, more stringent requirements are proposed accordingly in field, such as high temperature resistant, resistance to ablation, high dielectric etc..Due to for
Size is miniaturized and the further demand of high energy storage density, and huge dielectric constant material is always modern capacitor, filter
The hot spot of equal electronic devices research.With fire-retardant attention, it is desirable that product has flame retardant property, fire-retardant to have class requirement,
Respectively UL94 V-2, UL94 V-1 and UL94 V-0 ranks, wherein UL94 V-0 ranks are whether existing judgement substance hinders
The international standard of combustion.Equalization point is found between fire prevention and environmental protection, is the important node of the following flame retardant products development.Fire retardant exists
Importance in modern society can not be ignored, but as a series of environmental protection policies in Europe are put into effect, development and application is to some extent
It is restricted.How while support personnel and property are from fire threat, and fire retardant can be made to deposit human body and environment
Potential hazard be preferably minimized, be electrical domestic fire retardant manufacturing enterprise, research institution and downstream electronic, building materials, traffic and
The common focus of attention of the industries such as furniture.Using complex technique, the advantages of being not only to integrate organic-inorganic material, compatibility is also wanted not
Same organic component, is hopeful to prepare the material for meeting commercial Application.
Invention content
The object of the present invention is to provide a kind of preparation method of composite material with high dielectric property, obtained product has excellent
Dielectric properties, excellent heat resistance, anti-flammability, processability and mechanical property;Our company has applied multiple special together simultaneously
Profit illustrates central inventive point from different directions, especially longitudinal deep, it is expected that obtaining comprehensive protection.
To achieve the above object of the invention, the technical solution adopted by the present invention is:
A kind of preparation method of composite material with high dielectric property, includes the following steps:
(1) six water manganese nitrates, cobalt nitrate hexahydrate and iron chloride are scattered in deionized water, 45 is stirred at 110 DEG C
Minute, obtain presoma system;Then filtering presoma system obtains presoma;Then presoma passed through into drying, calcined
To high dielectric filler;The drying is the lower 105 DEG C of dryings of vacuum;The calcining is under hydrogen/argon gas mixed atmosphere, and 1150 DEG C are forged
It burns 3 hours;The volume ratio of the hydrogen/argon gas is 0.5: 10;
(2) at room temperature, 3,3 '-dithiodipropionic acids, dichloromethane, acetone are mixed;Then m-nitrobenzene sulfonic acid pyrrole is added
Methyl butynol is added in pyridine salt and diphenyl phosphate, stirring after ten minutes, and stirring adds 2,3- epoxies basic ring penta after 35 minutes
Benzylidene aniline is added after 50 minutes in cyclopentyl ether, stirring, continues stirring 5 minutes;Then N is added, N '-dicyclohexyls carbon two is sub-
Amine continues stirring 30 minutes, obtains simple function group epoxy systems;
(3) -2 propyl alcohol of 2- methyl is mixed to addition phthalic acid two after ten minutes to contract with isomery undecyl alcohol polyoxyethylene ether
In water glyceride, 125 DEG C are stirred 5 minutes, and polyetherimide is then added, and are continued stirring 45 minutes, are obtained difunctional epoxy
System;
(4) high dielectric filler is added in difunctional epoxy systems, 130 DEG C are stirred 20 minutes, then at 95 DEG C, are added
Enter simple function group epoxy systems, nano alumina particles, stirs 130 minutes, obtain glue;
(5) it is 60% to use solvent adjustment glue solid content, then reinforcing material is immersed in glue, then heated drying
Afterwards, composite material with high dielectric property is obtained.
In above-mentioned technical proposal, in step (1), the six water manganese nitrate, cobalt nitrate hexahydrate, iron chloride mass ratio be 1:
1∶0.2。
In above-mentioned technical proposal, in step (2), 3,3 '-dithiodipropionic acids, dichloromethane, acetone, m-nitrobenzene sulfonic acid
Pyridiniujm, diphenyl phosphate, methyl butynol, 2,3- epoxy group cyclopenta rings amyl ether, benzylidene aniline, N, N '-dicyclohexyls
The mass ratio of carbodiimide is 0.005: 0.15: 1: 0.002: 0.2: 0.02: 1: 0.3: 0.05;Be added methyl butynol when
Between be 20 minutes.
In above-mentioned technical proposal, in step (3), -2 propyl alcohol of 2- methyl, isomery undecyl alcohol polyoxyethylene ether, phthalic acid
2-glycidyl ester, polyetherimide mass ratio be 0.2: 0.1: 1: 0.09.
In above-mentioned technical proposal, in step (4), high dielectric filler, difunctional epoxy systems, simple function group epoxy body
It is, the mass ratio of nano alumina particles is 0.09: 0.4: 1: 0.01.
In above-mentioned technical proposal, in step (5), in the composite material with high dielectric property, the mass fraction of reinforcing material
It is 30%;The reinforcing material is electronic-grade glass fiber cloth;The heat drying is 130 DEG C/30s+160 DEG C/40s+190
℃/30s.This is critically important for the present invention, especially ensures the dispersibility and compatibility of filler, while ladder-elevating temperature and small point
The compatilizer effect of son, in turn avoids the presence of bubble, pin hole, while the tune provided using minute quantity nano alumina particles
The effect of whole viscosity and compatibility reaches good dispersion effect.The present invention is by whole compatibility and technological design, obtained ring
Oxygen material it is heat-resisting it is fine, fire-retardant very well, hydroscopicity it is low, especially dielectric constant performance is good.
In above-mentioned technical proposal, in step (5), solvent is propylene glycol methyl ether acetate.
Inventor develops cooperatively with school, and creative utilizes hydrogen argon gas mixed gas calcination processing so that in filler
Portion's Lacking oxygen increases, and produces more free electrons, and being directly used in resin compounded system in conjunction with micromolecular compound is conducive to ginseng
With the solidification process of resin, by several organic molecular species on the one hand adjust filler surface nature, prevent inorganic particulate its to tree
Fat generates the too fast influence of partial polymerization, in addition it can adjust crosslinked polymer network so that cured product crosslinking is reasonable, no
It is excessive as brittleness, to which conducive to processing, 1.5 millimeters of feed fishing sides reach 57 meters.The present invention is before being added epoxy, first
Several compound pre-reactions are mixed with, so as to access high polymer main chain with epoxy reaction, fire-retardant while will not reduce resistance to
Heat can also improve wet-heat resisting.The present invention simple function group epoxy and difunctional do not use conventional four-functional group ring
Oxygen, it is still heat-resisting good, also improve processability.
The present invention does not use fire retardant, by modified filler and compound effects, is imitated in combination with polymer reaction
Fruit, material can form finer and close protective layer in heated and burning, reach excellent hot oxygen screen effect, solid to assign
Body adhesives excellent heat resistance and anti-flammability, while mechanical property, adhesive property are good;Overcome the resistance of prior art filler
Mechanical properties decrease, the problem of heat-resisting decline that the bonding that combustion agent is brought declines and reactive flame retardant is brought.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art:
Compound system composition provided by the invention is reasonable, then prepares technique, inorganic nanoparticles in obtained base material
There is uniform dispersion degree, preparation process to belong to chemical process in system, the inorganic matter of formation is combined with the surface of interlaminar resin
Power is much stronger than the surface binding force of traditional physical mechanical blending.The material system composition that the present invention utilizes is reasonable, each to form
/ compatibility is good, and composite material with high dielectric property has thus been prepared, and has good mechanical property, heat resistance, comprehensive
The shortcomings that the advantages of closing polymer, two component of inorganic particulate, two component of improvement, obtains the comprehensive performance of material to improve;Gu
Change effect is good, and cross-linked structure is uniform, on the one hand micromolecular compound can increase system as the compatilizer of macromolecule organic
On the other hand the compatibility of each component avoids forming crosslinking uneven defect when hot-press solidifying, ensures that resin system forms stabilization
Structure, especially improve heat-resisting, the wearability of conventional epoxy, and be free of fire retardant, pass through reasonable reaction, success
The hygroscopic defect of existing reactive phosphor-containing flame-proof molecule is avoided, unexpected effect is achieved.
Specific implementation mode
With reference to embodiment, the invention will be further described:
Embodiment one
A kind of preparation method of composite material with high dielectric property, includes the following steps:
(1) six water manganese nitrates, cobalt nitrate hexahydrate and iron chloride are scattered in deionized water, 45 is stirred at 110 DEG C
Minute, obtain presoma system;Then filtering presoma system obtains presoma;Then presoma passed through into drying, calcined
To high dielectric filler;The drying is the lower 105 DEG C of dryings of vacuum;The calcining is under hydrogen/argon gas mixed atmosphere, and 1150 DEG C are forged
It burns 3 hours;The volume ratio of the hydrogen/argon gas is 0.5: 10;
(2) at room temperature, 3,3 '-dithiodipropionic acids, dichloromethane, acetone are mixed;Then m-nitrobenzene sulfonic acid pyrrole is added
Methyl butynol is added in pyridine salt and diphenyl phosphate, stirring after ten minutes, and stirring adds 2,3- epoxies basic ring penta after 35 minutes
Benzylidene aniline is added after 50 minutes in cyclopentyl ether, stirring, continues stirring 5 minutes;Then N is added, N '-dicyclohexyls carbon two is sub-
Amine continues stirring 30 minutes, obtains simple function group epoxy systems;
(3) -2 propyl alcohol of 2- methyl is mixed to addition phthalic acid two after ten minutes to contract with isomery undecyl alcohol polyoxyethylene ether
In water glyceride, 125 DEG C are stirred 5 minutes, and polyetherimide is then added, and are continued stirring 45 minutes, are obtained difunctional epoxy
System;
(4) high dielectric filler is added in difunctional epoxy systems, 130 DEG C are stirred 20 minutes, then at 95 DEG C, are added
Enter simple function group epoxy systems, nano alumina particles, stirs 130 minutes, obtain glue;
(5) it is 60% to adjust glue solid content with propylene glycol methyl ether acetate, and then reinforcing material is immersed in glue,
Again after heated drying, composite material with high dielectric property is obtained, the mass fraction of reinforcing material is 30%, and heat drying technique is
130 DEG C/30s+160 DEG C/40s+190 DEG C/30s, solve other dryings existing surface pores, crack problem.
In step (1), six water manganese nitrates, cobalt nitrate hexahydrate, iron chloride mass ratio be 1: 1: 0.2;In step (2), 3,
3 '-dithiodipropionic acids, dichloromethane, acetone, m-nitrobenzene sulfonic acid pyridiniujm, diphenyl phosphate, methyl butynol, 2,3- rings
The mass ratio of oxygroup cyclopenta ring amyl ether, benzylidene aniline, N, N '-dicyclohexylcarbodiimides are 0.005: 0.15: 1: 0.002
∶0.2∶0.02∶1∶0.3∶0.05;The time that methyl butynol is added is 20 minutes;In step (3), -2 propyl alcohol of 2- methyl, isomery
Undecyl alcohol polyoxyethylene ether, o-phthalic acid diglycidyl ester, polyetherimide mass ratio be 0.2: 0.1: 1: 0.09;
In step (4), high dielectric filler, difunctional epoxy systems, simple function group epoxy systems, nano alumina particles mass ratio
It is 0.09: 0.4: 1: 0.01.
By 6 above-mentioned composite material with high dielectric property hot-press solidifyings, you can obtain high dielectric property composite plate;Performance test
It is shown in Table 1, condition when hot pressing is 5kg/cm2/150℃/15min+5kg/cm2/170℃ /50min+8kg/cm2/200℃/
40min+ Temperature falls.
Comparative example one
As embodiment one, the wherein calcining of step (1) is under argon gas atmosphere, and 1150 DEG C are calcined 3 hours.
Comparative example two
As embodiment one, wherein step (2) is added without diphenyl phosphate.
Comparative example three
As embodiment one, wherein step (3) is added without polyetherimide.
Comparative example four
As embodiment one, wherein step (4) is added without nano alumina particles.
To mechanical performance (unnotched impact strength, the Kj/m of the plank in above-described embodiment and comparative example2), mechanical property
Can (1.5 millimeters of feeds, rice), hot property, dielectric constant (1MHz), water absorption rate, it is fire-retardant be determined, as a result referring to table 1.
The performance of 1 high dielectric property composite plate of table
It is fire-retardant | Oxygen index (OI) | Drag for side | Dielectric constant | Tg/℃ | Hydroscopicity | Impact strength | |
Embodiment one | V0 | 49 | 57 | 129 | 222 | 0.058% | 8.2 |
Comparative example one | V0 | 41 | 55 | 56 | 221 | 0.059% | 8.1 |
Comparative example two | V1 | 28 | 56 | 115 | 196 | 0.059% | 8.2 |
Comparative example three | V0 | 38 | 39 | 92 | 190 | 0.065% | 8.1 |
Comparative example four | V1 | 32 | 46 | 96 | 208 | 0.063% | 8.0 |
To sum up, composite material with high dielectric property composition disclosed by the invention is reasonable, and compatibility is good between each component, thus
High dielectric property composite plate has been prepared, there is good flame retardant property, excellent heat resistance, especially there is low moisture absorption
Rate and good dielectric properties.
Claims (8)
1. a kind of preparation method of composite material with high dielectric property, which is characterized in that include the following steps:
(1) six water manganese nitrates, cobalt nitrate hexahydrate and iron chloride are scattered in deionized water, are stirred 45 minutes at 110 DEG C,
Obtain presoma system;Then filtering presoma system obtains presoma;Then presoma is obtained into Gao Jie by dry, calcining
Electric filler;The drying is the lower 105 DEG C of dryings of vacuum;The calcining is under hydrogen/argon gas mixed atmosphere, and 1150 DEG C of calcinings 3 are small
When;The volume ratio of the hydrogen/argon gas is 0.5: 10;
(2) at room temperature, 3,3 '-dithiodipropionic acids, dichloromethane, acetone are mixed;Then m-nitrobenzene sulfonic acid pyridiniujm is added
With diphenyl phosphate, methyl butynol is added in stirring after ten minutes, and stirring adds 2,3- epoxy group cyclopenta rings after 35 minutes
Benzylidene aniline is added after 50 minutes in amyl ether, stirring, continues stirring 5 minutes;Then it is added N, N '-dicyclohexylcarbodiimides,
Continue stirring 30 minutes, obtains simple function group epoxy systems;
(3) -2 propyl alcohol of 2- methyl is mixed with isomery undecyl alcohol polyoxyethylene ether after ten minutes be added phthalic acid two shrink it is sweet
In grease, 125 DEG C are stirred 5 minutes, and polyetherimide is then added, and are continued stirring 45 minutes, are obtained difunctional epoxy systems;
(4) high dielectric filler is added in difunctional epoxy systems, 130 DEG C are stirred 20 minutes, then at 95 DEG C, are added single
Functional group's epoxy systems, nano alumina particles stir 130 minutes, obtain glue;
(5) it is 60% to use solvent adjustment glue solid content, then reinforcing material is immersed in glue, then after heated drying,
Obtain composite material with high dielectric property.
2. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:It is described in step (1)
Six water manganese nitrates, cobalt nitrate hexahydrate, iron chloride mass ratio be 1: 1: 0.2.
3. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:In step (2), 3,
3 '-dithiodipropionic acids, dichloromethane, acetone, m-nitrobenzene sulfonic acid pyridiniujm, diphenyl phosphate, methyl butynol, 2,3- rings
The mass ratio of oxygroup cyclopenta ring amyl ether, benzylidene aniline, N, N '-dicyclohexylcarbodiimides are 0.005: 0.15: 1: 0.002
∶0.2∶0.02∶1∶0.3∶0.05;The time that methyl butynol is added is 20 minutes.
4. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:In step (3), 2- first
- 2 propyl alcohol of base, isomery undecyl alcohol polyoxyethylene ether, o-phthalic acid diglycidyl ester, polyetherimide mass ratio be 0.2:
0.1∶1∶0.09。
5. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:In step (4), Gao Jie
Electric filler, difunctional epoxy systems, simple function group epoxy systems, nano alumina particles mass ratio be 0.09: 0.4: 1:
0.01。
6. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:It is described in step (5)
In composite material with high dielectric property, the mass fraction of reinforcing material is 30%;The reinforcing material is electronic-grade glass fiber cloth.
7. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:It is described in step (5)
Heat drying is 130 DEG C/30s+160 DEG C/40s+190 DEG C/30s.
8. the preparation method of composite material with high dielectric property according to claim 1, it is characterised in that:In step (5), solvent
For propylene glycol methyl ether acetate.
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Cited By (11)
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CN109385203A (en) * | 2018-10-31 | 2019-02-26 | 江苏立新材料科技有限公司 | A kind of flame-proof abrasion-resistant bearing material |
CN109385202A (en) * | 2018-10-31 | 2019-02-26 | 江苏立新材料科技有限公司 | A kind of preparation method of anti-friction bearing slurry |
CN109401606A (en) * | 2018-10-31 | 2019-03-01 | 江苏立新材料科技有限公司 | Flame-retardant slurry is preparing the application in flame-proof abrasion-resistant bearing material |
CN109401592A (en) * | 2018-10-31 | 2019-03-01 | 江苏立新材料科技有限公司 | A kind of preparation method of abrasion-resistant bearing materials |
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CN109467927A (en) * | 2018-10-31 | 2019-03-15 | 江苏立新材料科技有限公司 | A kind of flame-proof abrasion-resistant bearing slurry |
CN109467926A (en) * | 2018-10-31 | 2019-03-15 | 江苏立新材料科技有限公司 | Wear-resisting slurry is preparing the application in abrasion-resistant bearing materials |
CN109504149A (en) * | 2018-10-31 | 2019-03-22 | 江苏立新材料科技有限公司 | A kind of preparation method of flame-proof abrasion-resistant bearing slurry |
CN109504148A (en) * | 2018-10-31 | 2019-03-22 | 江苏立新材料科技有限公司 | A kind of abrasion-resistant bearing materials |
CN109536033A (en) * | 2018-10-31 | 2019-03-29 | 江苏立新材料科技有限公司 | A kind of preparation method of flame-proof abrasion-resistant bearing material |
CN111562857A (en) * | 2020-04-20 | 2020-08-21 | 武汉华星光电技术有限公司 | Composite high-resistance film, preparation method thereof and embedded touch screen |
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