CN109054290A - A kind of preparation method and applications of epoxy resin-base composite material - Google Patents
A kind of preparation method and applications of epoxy resin-base composite material Download PDFInfo
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- CN109054290A CN109054290A CN201810600231.4A CN201810600231A CN109054290A CN 109054290 A CN109054290 A CN 109054290A CN 201810600231 A CN201810600231 A CN 201810600231A CN 109054290 A CN109054290 A CN 109054290A
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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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- 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
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention discloses a kind of preparation method and applications of epoxy resin-base composite material, this method is by epoxy resin, bimaleimide resin, compatilizer, resinous polymer is made in antistatic agent reaction, then by dimethyl silicone polymer, neopelex is added in methyl acetate solution addition resinous polymer after ultrasonic treatment and modified resin composite material is made, again by potassium titanate crystal whisker, asbestos Down Fiber and dimethyl formamide solution are ultrasonically treated that hollow glass micropearl is added after obtaining primary mixed reaction solution, with lubricant, heat stabilizer, curing agent reacts to obtain second level mixed reaction solution, again with modified resin composite material through melting extrusion in double screw extruder, extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, obtain sold resin based composites.The polymer matrix composites being prepared, shock resistance is not good, tearable, has a good application prospect as auto parts and components material.
Description
Technical field
The present invention relates to new material technology fields, and in particular to a kind of preparation method of epoxy resin-base composite material and its
Using.
Background technique
Polymer matrix composites (Resin Matrix Composite) are also referred to as fibre reinforced plastics (Fiber
Reinforced Plastics), it is a kind of composite material that current Technical comparing is mature and is most widely used.This material
It is to enhance thermosetting property or thermoplastic resin matrix with chopped or continuous fiber and its fabric, through being combined.Epoxy resin-matrix
Composite material solidifies rear surface finish due to its good bonding, flexure, toughness, thermochemical property, good moisture resistance
It is good, it is widely used in structural member filling, sealing.However because its curing material is crisp, resistance to cracking energy, shock resistance
And heat resistance is all poor, is subject to certain restrictions its application.Bimaleimide resin is as a kind of typical high property
Energy thermosetting resin, with excellent mechanical property, high heat resistance, low dielectric properties etc. are widely used in aviation, boat
It, the fields such as electronics.But since bismaleimide resin solidfied material has apparent brittleness, so that bismaleimide resin sill makes in use
With crackle is also easy to produce in the process, to keep its application limited and safety reduction.In the present higher and higher to material performance requirement
How it makes polymer matrix composites containing epoxy resin, bimaleimide resin by composite modified method
Get a promotion in mechanical property is a urgent problem needed to be solved.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of preparation method of epoxy resin-base composite material and its answers
With this method is that resinous polymer is made in epoxy resin, bimaleimide resin, compatilizer, antistatic agent reaction, then
Dimethyl silicone polymer, neopelex are added to after being ultrasonically treated in methyl acetate solution and resinous polymer is added
Modified resin composite material is made, then potassium titanate crystal whisker, asbestos Down Fiber and dimethyl formamide solution are ultrasonically treated to obtain
Hollow glass micropearl is added after primary mixed reaction solution, reacts to obtain second level hybrid reaction with lubricant, heat stabilizer, curing agent
Liquid, then with modified resin composite material through melting extrusion in double screw extruder, extrudate is injected into mold, and it is dry to be put into air blast
Solidification heat treatment is carried out in dry case, obtains sold resin based composites.The polymer matrix composites being prepared, shock resistance
Performance is not good, tearable, has a good application prospect as auto parts and components material.
Technical solution: to solve the above-mentioned problems, the invention discloses a kind of preparation sides of epoxy resin-base composite material
Method comprises the steps of:
(1) by 50~60 parts of epoxy resin, 45~55 parts of bimaleimide resin, 2~4 parts of compatilizer, antistatic agent 2~4
In part addition reaction kettle, control reactor temperature is 85~95 DEG C, according to 150~250 revs/min of rates stirrings 100~
120 minutes, obtain resinous polymer；
(2) 16~20 parts of dimethyl silicone polymer, 8~10 parts of neopelex are added to 60~80 times of its weight
In the methyl acetate solution that concentration is 20%, handled 15~20 minutes with the power ultrasonic disperse of 200~250 W, then to ultrasound
It is added step (1) obtained resinous polymer in decentralized processing liquid, insulated and stirred 4~6 hours at 50 DEG C, then by insulated and stirred
Treated mixed liquor curing process 60~90 minutes at 105~115 DEG C, are cooled to room temperature, obtain modified resin composite material；
(3) 5~9 parts of potassium titanate crystal whisker, 3~5 parts of asbestos Down Fiber are added with concentration for 15% dimethyl formamide solution jointly
Enter in ultrasonic dispersers, is handled 30~50 minutes with the power ultrasonic disperse of 150~180W, it then will be at obtained ultrasonic disperse
Reason liquid is placed in 60 DEG C of water-bath to be stirred to react 3~5 hours according to 300~400 revs/min of rate, and it is anti-to obtain primary mixing
Answer liquid；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), 3~5 parts of lubricant, thermostabilization are added
2~4 parts of agent, 2~4 parts of curing agent, are stirred to react 80~90 points according to 500~600 revs/min of stirring rate at 75 DEG C
Clock obtains second level mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 60~80 DEG C, keep the temperature 50~70 minutes according to 60~80 DEG C, 95~105 DEG C of heat preservations 100~120
Minute, 100~120 DEG C keep the temperature 150~180 minutes, and the processing sequence of 125~145 DEG C of heat preservations 200~220 minutes is solidified
Heat treatment, obtains sold resin based composites.
Further, the compatilizer in the step (1) is selected from acryl-butadiene-styrol copolymer, metering system
Acid glycidyl ester and any one in polyacrylic copolymer, Styrene-Butadiene-Styrene Block Copolymer.
Further, it is antistatic to be selected from cationic antistatic agent, anionic for the antistatic agent in the step (1)
Any one in agent, non-ionic antistatic agent.
Further, the lubricant in the step (4) is selected from polyethylene wax, ethylene-acrylic acid copolymer, erucyl amide
In any one.
Further, the heat stabilizer in the step (4) is selected from ethyl oxalyl chloride, diphenyl phosphite, stearic acid
Any one in barium.
Further, the curing agent in the step (4) is in diaminocyclohexane, dicyandiamide, isophorone diamine
Any one.
At the same time, the invention also discloses epoxy resin-base composite materials made from above-mentioned preparation method as automobile zero
The application of component materials.
Compared with prior art, the present invention has the advantages that:
(1) preparation method of epoxy resin-base composite material of the invention is by epoxy resin, bimaleimide resin, compatible
Resinous polymer is made in agent, antistatic agent reaction, and dimethyl silicone polymer, neopelex are then added to acetic acid
Resinous polymer is added after being ultrasonically treated in methyl ester solution and is made modified resin composite material, then by potassium titanate crystal whisker, asbestos wool
Fiber and dimethyl formamide solution are ultrasonically treated that hollow glass micropearl is added after obtaining primary mixed reaction solution, with lubricant,
Heat stabilizer, curing agent react to obtain second level mixed reaction solution, then with modified resin composite material through melting in double screw extruder
Melt extrusion, extrudate is injected into mold, is put into air dry oven and is carried out solidification heat treatment, and sold resin base composite wood is obtained
Material.The polymer matrix composites being prepared, shock resistance is not good, tearable, has as auto parts and components material good
Good application prospect.
(2) present invention employs modified resin composite material is made by specific method of modifying in resin based polyalcohol,
Modified resin composite material is subjected to subsequent processing again, effective performance boost has been carried out to polymer matrix composites, to last
The polymer matrix composites being prepared bring increasing substantially in service performance, this is never to report in previous research
What road was crossed, for realizing that it is conclusive that technical effect of the invention plays the role of.
Specific embodiment
Embodiment 1
(1) by 50 parts of epoxy resin, 45 parts of bimaleimide resin, 2 parts of acryl-butadiene-styrol copolymer, sun from
In 2 parts of addition reaction kettles of subtype antistatic agent, control reactor temperature is 85 DEG C, is stirred according to 150 revs/min of rates
100 minutes, obtain resinous polymer；
It (2) is 20% by the concentration that 16 parts of dimethyl silicone polymer, 8 parts of neopelex are added to 60 times of its weight
It in methyl acetate solution, is handled 15 minutes with the power ultrasonic disperse of 200 W, then to step is added in ultrasonic disperse treatment fluid
(1) resinous polymer obtained, insulated and stirred 4 hours at 50 DEG C, then by insulated and stirred treated mixed liquor at 105 DEG C
It curing process 60 minutes, is cooled to room temperature, obtains modified resin composite material；
(3) ultrasound is added with concentration for 15% dimethyl formamide solution in 5 parts of potassium titanate crystal whisker, 3 parts of asbestos Down Fiber jointly
In disperser, is handled 30 minutes with the power ultrasonic disperse of 150W, obtained ultrasonic disperse treatment fluid is then placed in 60 DEG C
It is stirred to react 3 hours in water-bath according to 300 revs/min of rate, obtains primary mixed reaction solution；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), 3 parts of polyethylene wax, oxalyl chloride list are added
2 parts of ethyl ester, 2 parts of diaminocyclohexane, are stirred to react 80 minutes according to 500 revs/min of stirring rate at 75 DEG C, obtain two
Grade mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 60 DEG C, keep the temperature 50 minutes according to 60 DEG C, and 95 DEG C keep the temperature 100 minutes, and 100 DEG C keep the temperature 150 minutes,
The processing sequence of 125 DEG C of heat preservations 200 minutes carries out solidification heat treatment, obtains sold resin based composites.
Embodiment 2
(1) by 55 parts of epoxy resin, 50 parts of bimaleimide resin, glycidyl methacrylate and polyacrylic copolymerization
In 3 parts of 3 parts of object, anionic antistatic agent addition reaction kettles, control reactor temperature is 90 DEG C, according to 200 revs/min
Rate stirs 110 minutes, obtains resinous polymer；
It (2) is 20% by the concentration that 18 parts of dimethyl silicone polymer, 9 parts of neopelex are added to 70 times of its weight
It in methyl acetate solution, is handled 17.5 minutes with the power ultrasonic disperse of 225 W, is walked then to being added in ultrasonic disperse treatment fluid
Suddenly the resinous polymer that (1) obtains, insulated and stirred 5 hours at 50 DEG C, then by insulated and stirred treated mixed liquor at 110 DEG C
Lower curing process 75 minutes, is cooled to room temperature, and obtains modified resin composite material；
(3) ultrasound is added with concentration for 15% dimethyl formamide solution in 7 parts of potassium titanate crystal whisker, 4 parts of asbestos Down Fiber jointly
In disperser, is handled 40 minutes with the power ultrasonic disperse of 165W, obtained ultrasonic disperse treatment fluid is then placed in 60 DEG C
It is stirred to react 4 hours in water-bath according to 350 revs/min of rate, obtains primary mixed reaction solution；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), ethylene-acrylic acid copolymer 4 is added
Part, 3 parts of diphenyl phosphite, 3 parts of dicyandiamide, are stirred to react 85 minutes at 75 DEG C according to 550 revs/min of stirring rate,
Obtain second level mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 70 DEG C, keep the temperature 60 minutes according to 70 DEG C, and 100 DEG C keep the temperature 110 minutes, and 110 DEG C keep the temperature 165 points
The processing sequence of clock, 135 DEG C of heat preservations 210 minutes carries out solidification heat treatment, obtains sold resin based composites.
Embodiment 3
(1) by 60 parts of epoxy resin, 55 parts of bimaleimide resin, 4 parts of Styrene-Butadiene-Styrene Block Copolymer,
In 4 parts of addition reaction kettles of non-ionic antistatic agent, control reactor temperature is 95 DEG C, is stirred according to 250 revs/min of rate
It mixes 120 minutes, obtains resinous polymer；
It (2) is 20% by the concentration that 20 parts of dimethyl silicone polymer, 10 parts of neopelex are added to 80 times of its weight
It in methyl acetate solution, is handled 20 minutes with the power ultrasonic disperse of 250 W, then to step is added in ultrasonic disperse treatment fluid
(1) resinous polymer obtained, insulated and stirred 6 hours at 50 DEG C, then by insulated and stirred treated mixed liquor at 115 DEG C
It curing process 90 minutes, is cooled to room temperature, obtains modified resin composite material；
(3) ultrasound is added with concentration for 15% dimethyl formamide solution in 9 parts of potassium titanate crystal whisker, 5 parts of asbestos Down Fiber jointly
In disperser, is handled 50 minutes with the power ultrasonic disperse of 180W, obtained ultrasonic disperse treatment fluid is then placed in 60 DEG C
It is stirred to react 5 hours in water-bath according to 400 revs/min of rate, obtains primary mixed reaction solution；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), 5 parts of erucyl amide, barium stearate are added
4 parts, 4 parts of isophorone diamine, are stirred to react 90 minutes at 75 DEG C according to 600 revs/min of stirring rate, and it is mixed to obtain second level
Close reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 80 DEG C, keep the temperature 70 minutes according to 80 DEG C, and 105 DEG C keep the temperature 120 minutes, and 120 DEG C keep the temperature 180 points
The processing sequence of clock, 145 DEG C of heat preservations 220 minutes carries out solidification heat treatment, obtains sold resin based composites.
Comparative example 1
(1) by 55 parts of epoxy resin, 50 parts of bimaleimide resin, glycidyl methacrylate and polyacrylic copolymerization
In 3 parts of 3 parts of object, anionic antistatic agent addition reaction kettles, control reactor temperature is 90 DEG C, according to 200 revs/min
Rate stirs 110 minutes, obtains resinous polymer；
It (2) is 30% by the concentration that 18 parts of dimethyl silicone polymer, 9 parts of neopelex are added to 70 times of its weight
It in methyl acetate solution, is handled 17.5 minutes with the power ultrasonic disperse of 225 W, is walked then to being added in ultrasonic disperse treatment fluid
Suddenly the resinous polymer that (1) obtains, insulated and stirred 5 hours at 100 DEG C, then by insulated and stirred treated mixed liquor 110
Curing process 75 minutes, are cooled to room temperature at DEG C, obtain modified resin composite material；
(3) ultrasound is added with concentration for 15% dimethyl formamide solution in 7 parts of potassium titanate crystal whisker, 4 parts of asbestos Down Fiber jointly
In disperser, is handled 40 minutes with the power ultrasonic disperse of 165W, obtained ultrasonic disperse treatment fluid is then placed in 60 DEG C
It is stirred to react 4 hours in water-bath according to 350 revs/min of rate, obtains primary mixed reaction solution；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), ethylene-acrylic acid copolymer 4 is added
Part, 3 parts of diphenyl phosphite, 3 parts of dicyandiamide, are stirred to react 85 minutes at 75 DEG C according to 550 revs/min of stirring rate,
Obtain second level mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 70 DEG C, keep the temperature 60 minutes according to 70 DEG C, and 100 DEG C keep the temperature 110 minutes, and 110 DEG C keep the temperature 165 points
The processing sequence of clock, 135 DEG C of heat preservations 210 minutes carries out solidification heat treatment, obtains sold resin based composites.
Comparative example 2
(1) by 55 parts of epoxy resin, 50 parts of bimaleimide resin, glycidyl methacrylate and polyacrylic copolymerization
In 3 parts of 3 parts of object, anionic antistatic agent addition reaction kettles, control reactor temperature is 90 DEG C, according to 200 revs/min
Rate stirs 110 minutes, obtains resinous polymer；
It (2) is 20% by the concentration that 18 parts of dimethyl silicone polymer, 9 parts of neopelex are added to 70 times of its weight
It in methyl acetate solution, is handled 30 minutes with the power ultrasonic disperse of 500W, then to step is added in ultrasonic disperse treatment fluid
(1) resinous polymer obtained, insulated and stirred 2 hours at 50 DEG C, then by insulated and stirred treated mixed liquor at 130 DEG C
It curing process 75 minutes, is cooled to room temperature, obtains modified resin composite material；
(3) ultrasound is added with concentration for 15% dimethyl formamide solution in 7 parts of potassium titanate crystal whisker, 4 parts of asbestos Down Fiber jointly
In disperser, is handled 40 minutes with the power ultrasonic disperse of 165W, obtained ultrasonic disperse treatment fluid is then placed in 60 DEG C
It is stirred to react 4 hours in water-bath according to 350 revs/min of rate, obtains primary mixed reaction solution；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), ethylene-acrylic acid copolymer 4 is added
Part, 3 parts of diphenyl phosphite, 3 parts of dicyandiamide, are stirred to react 85 minutes at 75 DEG C according to 550 revs/min of stirring rate,
Obtain second level mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 70 DEG C, keep the temperature 60 minutes according to 70 DEG C, and 100 DEG C keep the temperature 110 minutes, and 110 DEG C keep the temperature 165 points
The processing sequence of clock, 135 DEG C of heat preservations 210 minutes carries out solidification heat treatment, obtains sold resin based composites.
Comparative example 3
(1) by 55 parts of epoxy resin, 50 parts of bimaleimide resin, glycidyl methacrylate and polyacrylic copolymerization
In 3 parts of 3 parts of object, anionic antistatic agent addition reaction kettles, control reactor temperature is 90 DEG C, according to 200 revs/min
Rate stirs 110 minutes, obtains resinous polymer；
(2) in the methyl acetate solution that the concentration for being added to 70 times of its weight for 18 parts of dimethyl silicone polymer is 20%, with 225
The power ultrasonic disperse of W is handled 17.5 minutes, then to the resin polymerization that addition step (1) obtains in ultrasonic disperse treatment fluid
Object, insulated and stirred 5 hours at 50 DEG C, then by insulated and stirred treated mixed liquor curing process 75 minutes at 110 DEG C, it is cold
But to room temperature, modified resin composite material is obtained；
(3) ultrasound is added with concentration for 15% dimethyl formamide solution in 7 parts of potassium titanate crystal whisker, 4 parts of asbestos Down Fiber jointly
In disperser, is handled 40 minutes with the power ultrasonic disperse of 165W, obtained ultrasonic disperse treatment fluid is then placed in 60 DEG C
It is stirred to react 4 hours in water-bath according to 350 revs/min of rate, obtains primary mixed reaction solution；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), ethylene-acrylic acid copolymer 4 is added
Part, 3 parts of diphenyl phosphite, 3 parts of dicyandiamide, are stirred to react 85 minutes at 75 DEG C according to 550 revs/min of stirring rate,
Obtain second level mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 70 DEG C, keep the temperature 60 minutes according to 70 DEG C, and 100 DEG C keep the temperature 110 minutes, and 110 DEG C keep the temperature 165 points
The processing sequence of clock, 135 DEG C of heat preservations 210 minutes carries out solidification heat treatment, obtains sold resin based composites.
By the polymer matrix composites obtained of embodiment 1-3 and comparative example 1-3 respectively according to GB/T 1843-2008 and
The test method measurement impact strength and tensile strength, test result of GB/T 2568-1995 is as shown in table 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Impact strength (kJ/m2) | 10.8 | 11.2 | 11.0 | 7.9 | 8.3 | 6.7 |
| Tensile strength (MPa) | 50.6 | 50.9 | 50.8 | 38.4 | 39.2 | 35.0 |
The preparation method of epoxy resin-base composite material of the invention be by epoxy resin, bimaleimide resin, compatilizer,
Resinous polymer is made in antistatic agent reaction, and dimethyl silicone polymer, neopelex are then added to tumer
Resinous polymer is added after being ultrasonically treated in ester solution, modified resin composite material is made, then potassium titanate crystal whisker, asbestos wool is fine
Dimension with dimethyl formamide solution is ultrasonically treated that hollow glass micropearl is added after obtaining primary mixed reaction solution, with lubricant, heat
Stabilizer, curing agent react to obtain second level mixed reaction solution, then with modified resin composite material through melting in double screw extruder
It squeezes out, extrudate is injected into mold, is put into air dry oven and carries out solidification heat treatment, obtains sold resin base composite wood
Material.The polymer matrix composites being prepared, shock resistance is not good, tearable, has as auto parts and components material good
Good application prospect.Also, present invention employs modified resin is made by specific method of modifying in resin based polyalcohol to answer
Condensation material, then modified resin composite material is subjected to subsequent processing, effective performance boost has been carried out to polymer matrix composites,
Increasing substantially in service performance is brought to the polymer matrix composites being finally prepared, this is in previous research
It never reported, for realizing that it is conclusive that technical effect of the invention plays the role of.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (7)
1. a kind of preparation method of epoxy resin-base composite material, which is characterized in that comprise the steps of:
(1) by 50~60 parts of epoxy resin, 45~55 parts of bimaleimide resin, 2~4 parts of compatilizer, antistatic agent 2~4
In part addition reaction kettle, control reactor temperature is 85~95 DEG C, according to 150~250 revs/min of rates stirrings 100~
120 minutes, obtain resinous polymer；
(2) 16~20 parts of dimethyl silicone polymer, 8~10 parts of neopelex are added to 60~80 times of its weight
In the methyl acetate solution that concentration is 20%, handled 15~20 minutes with the power ultrasonic disperse of 200~250 W, then to ultrasound
It is added step (1) obtained resinous polymer in decentralized processing liquid, insulated and stirred 4~6 hours at 50 DEG C, then by insulated and stirred
Treated mixed liquor curing process 60~90 minutes at 105~115 DEG C, are cooled to room temperature, obtain modified resin composite material；
(3) 5~9 parts of potassium titanate crystal whisker, 3~5 parts of asbestos Down Fiber are added with concentration for 15% dimethyl formamide solution jointly
Enter in ultrasonic dispersers, is handled 30~50 minutes with the power ultrasonic disperse of 150~180W, it then will be at obtained ultrasonic disperse
Reason liquid is placed in 60 DEG C of water-bath to be stirred to react 3~5 hours according to 300~400 revs/min of rate, and it is anti-to obtain primary mixing
Answer liquid；
(4) in the mixed reaction solution for obtaining hollow glass micropearl addition step (3), 3~5 parts of lubricant, thermostabilization are added
2~4 parts of agent, 2~4 parts of curing agent, are stirred to react 80~90 points according to 500~600 revs/min of stirring rate at 75 DEG C
Clock obtains second level mixed reaction solution；
(5) twin-screw is added in the modified resin composite material that step (2) obtains and the second level mixed reaction solution that step (4) obtain
Melting extrusion in extruder, then extrudate is injected into mold, it is put into air dry oven and carries out solidification heat treatment, setting drum
The Current Temperatures of wind drying box are 60~80 DEG C, keep the temperature 50~70 minutes according to 60~80 DEG C, 95~105 DEG C of heat preservations 100~120
Minute, 100~120 DEG C keep the temperature 150~180 minutes, and the processing sequence of 125~145 DEG C of heat preservations 200~220 minutes is solidified
Heat treatment, obtains sold resin based composites.
2. the preparation method of epoxy resin-base composite material according to claim 1, which is characterized in that the step (1)
In compatilizer be selected from acryl-butadiene-styrol copolymer, glycidyl methacrylate and polyacrylic copolymerization
Any one in object, Styrene-Butadiene-Styrene Block Copolymer.
3. the preparation method of epoxy resin-base composite material according to claim 1, which is characterized in that the step (1)
In antistatic agent it is any one in cationic antistatic agent, anionic antistatic agent, non-ionic antistatic agent
Kind.
4. the preparation method of epoxy resin-base composite material according to claim 1, which is characterized in that the step (4)
In any one in polyethylene wax, ethylene-acrylic acid copolymer, erucyl amide of lubricant.
5. the preparation method of epoxy resin-base composite material according to claim 1, which is characterized in that the step (4)
In any one in ethyl oxalyl chloride, diphenyl phosphite, barium stearate of heat stabilizer.
6. the preparation method of epoxy resin-base composite material according to claim 1, which is characterized in that the step (4)
In any one in diaminocyclohexane, dicyandiamide, isophorone diamine of curing agent.
7. epoxy resin-base composite material made from any one of -6 preparation methods is as auto parts and components according to claim 1
The application of material.
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| CN1730527A (en) * | 2005-09-12 | 2006-02-08 | 上海汽车集团股份有限公司 | Fiber reinforcement composite material used for car shrouding parts and back holding door produced therefrom |
| CN101426830A (en) * | 2006-04-25 | 2009-05-06 | 横滨橡胶株式会社 | Epoxy resin composition for fiber-reinforced composite material |
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