CN109777101A - A kind of modified polyetherimide resin complexes and preparation method thereof - Google Patents
A kind of modified polyetherimide resin complexes and preparation method thereof Download PDFInfo
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Abstract
The present invention provides a kind of modified polyetherimide resin complexes, mainly include the component of following parts by weight: 40-70 parts of polyetherimide resins, 10-30 parts of liquid-crystal polyester resins, 15-40 parts of fillers, 5-15 parts of talcum powder.It is basic resin with polyetherimide resin, using liquid-crystal polyester resin, filler, talcum powder is modified, addition liquid-crystal polyester resin and talcum powder act synergistically, the melt viscosity of polyetherimide can be effectively reduced, the mobility of polyetherimide is improved simultaneously, addition filler further enhances the tensile strength of modified polyetherimide, improve the mobility of polyetherimide resin, tensile strength, mechanical hardness, the performances such as plasticity, the modified polyetherimide resin complexes for enabling the present invention to obtain are widely used in aerospace, automobile manufacture, electric equal fields.
Description
Technical field
The present invention relates to polymeric material field more particularly to a kind of modified polyetherimide resin complexes and its preparations
Method.
Background technique
Since high molecular material has many advantages, such as small, light-weight, the easy manufacture of density, although only have passed through over half a century
Development, but the manufacture of people's lives and industry oneself through be unable to do without high molecular material.In certain special dimensions, such as aviation
Space flight and electronic and electrical field, to the performance of high molecular material, more stringent requirements are proposed.Based on this, high performance plastics are short
More than 30 years time in be rapidly developed, or even become indispensable material in some fields.
Polyetherimide is a kind of high molecular material of amber transparence, due to making it use model with outstanding performance
It encloses very extensive.Such as some components resistant to high temperature can be made using its higher thermal stability, and its outstanding machinery
Performance then can be used as the substitute of some metal materials, and excellent electrical insulation capability then can be applied to electric and electronic field etc.
Deng.The performance of polyetherimide either physical property or chemical-resistance is all very outstanding also very balanced.Such as its tool
There are excellent high-temperature stability, solvent resistance, radiation resistance, hydrolytic resistance etc..Due to having these outstanding performances, so that poly-
Etherimide has very wide application space in the fields such as aerospace, automobile manufacture, electric.
But the machine-shaping of polyetherimide resin is not easy to, since polyetherimide resin has lower melt
Mobility and higher melt viscosity, cause the plasticity of polyetherimide resin bad, limit polyethers to a certain extent
The manufacture and application of imide resin.
Summary of the invention
The purpose of the present invention is to provide a kind of modified polyetherimide resin complexes, it is intended to which solution gathers in the prior art
The problem of etherimide Resin Flow is poor, mechanical strength is low, poor plasticity.
For achieving the above object, The technical solution adopted by the invention is as follows:
A kind of modified polyetherimide resin complexes, the component including following parts by weight:
And a kind of preparation method of modified polyetherimide resin complexes, comprising the following steps:
Polyetherimide resin, liquid-crystal polyester resin, filler and talcum powder are weighed respectively according to the ratio；
The weighed polyetherimide resin, liquid-crystal polyester resin, filler and talcum powder are dried, mixed
Processing obtains the first mixture；
First mixture is subjected to melting mixing, extrusion, tie rod, cooling, granulation, obtains modified polyetherimide tree
Fat complexes.
Compared with prior art, the present invention is basic resin with polyetherimide resin, using liquid-crystal polyester resin, is filled out
Material, talcum powder are modified, and add liquid-crystal polyester resin, since liquid-crystal polyester resin is in the molten state at liquid crystal state, and liquid
Brilliant polyester resin is intermolecular to be not present wrapping phenomena, and liquid-crystal polyester resin is added in polyetherimide resin effectively to drop
The imido melt viscosity of oligo-ether, while the mobility of polyetherimide is improved, further, since liquid-crystal polyester resin is with good
Good high temperature resistance, can effectively keep the high temperature resistance of polyetherimide resin；Add talcum powder, make talcum powder with
Liquid-crystal polyester resin synergistic effect, enhances the lubricity of modified polyetherimide resin complexes, improves mobility；Addition is filled out
Material, improves the mechanical strength of modified polyetherimide resin complexes, enhances the tensile strength of modified polyetherimide,
Make preferably to be fused into one between polymer and polymer, by adjusting the additive amount of each substance, to reduce modified polyether
The melt viscosity of imide resin compound keeps good high-temperature stability, further increases the stream of polyetherimide resin
Dynamic property, tensile strength, mechanical hardness, the performances such as plasticity, the modified polyetherimide resin complexes for enabling the present invention to obtain
Enough it is widely used in the fields such as aerospace, automobile manufacture, electric.
Modified polyetherimide resin complexes of the invention are to squeeze out tie rod cooling granulation by melting mixing to obtain,
The preparation method enables each component substance to be sufficiently mixed uniformly, can have an effect mutually, make during melting mixing
The modified polyetherimide resin complexes being prepared have above-mentioned excellent performance, meanwhile, method and process letter of the invention
Single, condition is easily-controllable, high production efficiency, saves the economic cost of production.
Specific embodiment
To keep the purpose, technical solution and technical effect of the embodiment of the present invention clearer, the present invention will be implemented below
Technical solution in example is clearly and completely described, it is clear that and described embodiments are some of the embodiments of the present invention, and
The embodiment being not all of.In conjunction with the embodiment in the present invention, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more of the features.In the description of the present invention,
The meaning of " plurality " is two or more, unless otherwise specifically defined.
Present example provides a kind of modified polyetherimide resin complexes, the component including following parts by weight:
Wherein, polyetherimide resin is the basis material as modified polyetherimide resin complexes.In the present invention
In preferred embodiment, polyetherimide resin selects ULTEM1000.ULTEM1000 is a kind of noncrystal thermoplastic resin,
Various aspects good properties are easy to carry out processing for every field, therefore the present invention is based on widespread popularity to select ULTEM1000
Polyetherimide resin be modified.Specifically, the additive amount of polyetherimide resin is 40-70 parts.If basis material is poly-
The additive amount of etherimide resin is very little, then the mechanical performance of the modified polyetherimide resin complexes obtained is poor, stretches
Intensity is inadequate, can further influence application industrially；If the additive amount of basis material polyetherimide resin is too many,
The modified polyetherimide resin complexes poor fluidity arrived, can not improve its mobility, make modified polyetherimide
Resin complexes plasticity is not high, and modified effect is not achieved.In certain embodiments, the polyetherimide resin
Additive amount can make 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, 70 parts.
Specifically, liquid-crystal polyester resin is one of the component of modified polyetherimide resin complexes.Liquid-crystal polyester resin
It is a kind of polyester resin for being capable of forming liquid crystal state under certain condition, is generally divided into main chain liquid crystal polyester resin and side face liquid
Brilliant polyester resin.The field being applicable according to different types of resin is different, and currently preferred, the liquid-crystal polyester resin is
Main chain liquid crystal polyester resin.Liquid-crystal polyester resin is added, since liquid-crystal polyester resin is in the molten state at liquid crystal state, and liquid crystal
Polyester resin is intermolecular to be not present wrapping phenomena, and liquid-crystal polyester resin is added in polyetherimide resin to be effectively reduced
The melt viscosity of polyetherimide, while the mobility of polyetherimide is improved, further, since liquid-crystal polyester resin has well
High temperature resistance, the high temperature resistance of polyetherimide resin can be effectively kept.
It is further preferred that the liquid-crystal polyester resin is all aromatic liquid crystal polyester resin, Wholly aromatic liquid crystal polyester
Resin has high temperature resistant, the strong feature of mobility, using all aromatic liquid crystal polyester resin as modified polyetherimide resin
One of component of compound can make modified polyetherimide resin complexes keep higher fusing point, keep its holding good
Characteristic resistant to high temperature, while all aromatic liquid crystal polyester resin being mixed with polyesterimide resin, it can be further
The mobility for improving polyesterimide resin, improves the melt viscosity of polyesterimide resin, reduces its melt viscosity, improve it
Plasticity.
Preferably, all aromatic liquid crystal polyester resin is formed by monomer reaction, wherein the monomer is selected from freely virtue
At least one of fragrant race's glycol, aromatic diamine and aromatic series azanol and aromatic dicarboxylic acid, aromatic hydroxy-carboxylic and
At least one of aromatic amine yl carboxylic acid.It is further preferred that all aromatic liquid crystal polyester resin includes that following repetition is single
At least one of member:
The repetitive unit of free aromatic diol :-O-Ar-O-
The repetitive unit of aromatic diamine:
The repetitive unit of aromatic series azanol:
The repetitive unit of aromatic dicarboxylic acid:
The repetitive unit of aromatic hydroxy-carboxylic:
The repetitive unit of aromatic amine yl carboxylic acid:
Wherein, Ar is selected from penylene, biphenylene, naphthalene, the aromatic series that two penylenes are bonded by the element of carbon or non-carbon
Close at least one of object.
It is further preferred that Ar can be bonded for penylene, biphenylene, naphthalene or two penylenes by the element of carbon or non-carbon
Aromatic compound at least one protium formation replaced other elements aromatic compound.
Specifically, the additive amount of liquid-crystal polyester resin is 10-30 parts.Liquid-crystal polyester resin is used as to polyetherimide resin
One of important component being modified will affect the modified polyetherimide resin compounded being prepared if its additive amount is too low
The melt viscosity of object keeps the melt viscosity of modified polyetherimide resin complexes excessively high, leads to its poor fluidity, after being unfavorable for
Continuous processing and utilization；If how high its additive amount is, the machinery for the modified polyetherimide resin complexes being prepared will lead to
Intensity is low, and hardness is low, and tensile strength is small, affects the reprocessing of modified polyetherimide resin complexes.In some specific realities
It applies in example, the additive amount of liquid-crystal polyester resin can be 10 parts, 15 parts, 20 parts, 25 parts, 30 parts.
Specifically, the additive amount of the filler is 15-40 parts.The filler is added, mainly improvement modified polyether acyl is sub-
The mechanical performance of polyimide resin compound.If the additive amount of filler is very little, the modified polyetherimide tree being prepared will lead to
Fat complexes bad mechanical strength, product plasticity is not high, influences the post-production of product.If the additive amount of filler is too many, lead
It causes the content of other effective components such as basis material polyetherimide resin in modified polyetherimide resin complexes low, makes
The property of compound changes, and affects the application of compound.
Preferably, the filler is selected from least one of glass fibre, whisker, carbon fiber.Glass fibre is a kind of property
The excellent inorganic non-metallic material of energy, heat resistance is strong, high mechanical strength；Whisker is micro- as made of high-purity crystal growth
Nanoscale staple fiber, mechanical strength are equal to the intensity that adjacent interatomic force generates, and the height-oriented structure of whisker makes its tool
There is the characteristics of high tensile and high elongation rate, carbon fiber is a kind of high intensity 95% or more of phosphorus content, high modulus fibre
New fiber materials.It is to be piled up by organic fibers such as flake graphites along fiber axial direction, through carbonization and stone
Microcrystalline graphite material obtained from blackization processing, " soft outside but hard inside ", it not only has the intrinsic intrinsic property of carbon material, and has both
The soft machinability of textile fabric is reinforcing fiber of new generation.It selects above-mentioned three kinds of materials any or several be used as changes
The filler of property polyetherimide resin compound, can further improve the mechanical performance of the compound, enhance the compound
Mechanical strength, improve the stretching hardness of the compound, compound made to be more conducive to industrial application.In some specific embodiments
In, the additive amount of filler can be 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts.
Preferably, the length of selected filler is 7mm-10mm.If the pack length of selection is too short, can not be well to changing
The mechanical strength of property polyetherimide resin compound improves, and will lead to the machinery of modified polyetherimide resin complexes
Intensity is too low.If the pack length of selection is too long, the mechanical strength of modified polyetherimide resin complexes also will affect, make multiple
Close the processing that object is unfavorable for the later period.
Specifically, talcum powder is one of the component of modified polyetherimide resin complexes, talcum powder belongs to inorganic matter, single
Oblique system, main component are hydrous magnesium silicate Mg3[Si4O10](OH)2, crystal structure is in stratiform, toward polyetherimide
Talcum powder is added in resin, acts synergistically with liquid-crystal polyester resin, is combined using organic matter and inorganic matter, enables talcum powder more
It is easy to split into scale, the melt viscosity of the modified polyetherimide resin complexes further reduced improves compound
The mobility of object enhances the plasticity of product.Meanwhile the fusing point of talcum powder is high, chemical property is stablized, as modified polyether acyl
One of the component of imide resin compound can make the compound keep good high-temperature stability, improve the compound in work
Application in industry.Specifically, the additive amount of talcum powder is 5-15 parts.It, can not be farthest poly- with liquid crystal if additive amount is very little
Ester resin synergistic effect, cannot reduce the melt viscosity of compound well, keep the mobility of compound poor, properties of product are not
It is good.If additive amount is too many, in the mechanism of organic matter liquid-crystal polyester resin, talcum powder is not easy to be split into scale,
Cause compound end product properties poor, meanwhile, once the additive amount of talcum powder increases, can not be carried out well with liquid-crystal polyester resin
Synergistic effect, function and effect are poor, while also will affect the additive amount of other components, cause modified polyetherimide resin compounded
The performance of object changes, and can not be advantageously applied in industrial production.In certain embodiments, the additive amount of filler can
To be 5 parts, 8 parts, 10 parts, 12 parts, 15 parts.
Preferably, the particle size of preparation-obtained modified polyetherimide resin complexes is 1mm-3mm.Partial size
It is too small, it will affect the mechanical performance of compound, the reprocessing of product made to be affected；Partial size is too big, then will affect compound
Plasticity is also unfavorable for carrying out reprocessing processing to product.
To sum up, the present invention is basic resin with polyetherimide resin, using liquid-crystal polyester resin, filler, talcum powder into
Row is modified, and adds liquid-crystal polyester resin, and since liquid-crystal polyester resin is in the molten state at liquid crystal state, and liquid-crystal polyester resin divides
Wrapping phenomena is not present between son, liquid-crystal polyester resin is added in polyetherimide resin can be effectively reduced polyetherimide
Melt viscosity, while the mobility of polyetherimide is improved, further, since liquid-crystal polyester resin has good heat-resisting quantity
Can, the high temperature resistance of polyetherimide resin can be effectively kept；Talcum powder is added, talcum powder and liquid-crystal polyester resin are made
Synergistic effect enhances the lubricity of modified polyetherimide resin complexes, improves mobility；Filler is added, modified polyether is made
The mechanical strength of imide resin compound is improved, and the tensile strength of modified polyetherimide is enhanced, and is made polymer and is gathered
It closes and is preferably fused into one between object, by adjusting the additive amount of each substance, so that it is multiple to reduce modified polyetherimide resin
The melt viscosity for closing object, keeps good high-temperature stability, further increases the mobility of polyetherimide resin, stretches strong
Degree, mechanical hardness, the performances such as plasticity, the modified polyetherimide resin complexes for enabling the present invention to obtain widely are applied
In the fields such as aerospace, automobile manufacture, electric.
Correspondingly, the embodiment of the invention also provides the preparation method of above-mentioned modified polyetherimide resin complexes, it should
Method includes the following steps:
S01. polyetherimide resin, liquid-crystal polyester resin, filler and talcum powder are weighed according to the ratio respectively；
S02. the weighed polyetherimide resin, liquid-crystal polyester resin, filler and talcum powder are dried,
Mixing handles to obtain the first mixture；
S03. first mixture is subjected to melting mixing, extrusion, tie rod, cooling, granulation, it is sub- obtains modified polyether acyl
Polyimide resin compound.
Specifically, modified polyetherimide resin complexes and its each component preferred content in above-mentioned steps S01 and
Type is as described above, and in order to save length, details are not described herein.
Preferably, the preparation method of the liquid-crystal polyester resin includes the following steps:
S11. at least two monomers is selected to carry out polycondensation synthesis liquid crystal polyester prepolymer；
S12. the liquid crystal polyester prepolymer is subjected to solid state condensation reaction；Obtain liquid-crystal polyester resin.
Specifically, the type for two kinds of monomers that the selection is reacted is as described above in above-mentioned steps S11, it is
Saving length, is no longer discussed herein.
Preferably, at least two monomers of selection carry out polycondensation reaction, and the polycondensation reaction may be selected but be not limited to solution contracting
Poly- method or bulk polycondensation method.It, can be with it is further preferred that the generation in order to promote polycondensation reaction, improves the rate of polycondensation reaction
Raw material is pre-processed using acylting agent, is handled by the acylation to reaction monomers, it is single that the reaction can be improved
The polycondensation reaction of body.It is further preferred that acylting agent may be selected but be not limited to acetylation agents.
Specifically, in above-mentioned steps S12, the liquid crystal polyester prepolymer is carried out in solid state condensation reaction, need to
Wholly aromatic liquid crystal polyester prepolyer provides heat appropriate, and specific heat supply can pass through the side such as heating plate, hot wind, high temperature fluid
Method removes the by-product of solid state condensation reaction it is further preferred that increasing inert gas or vacuum environment during the reaction.
Specifically, in above-mentioned steps S02, by the weighed polyetherimide resin, liquid-crystal polyester resin, filler and
Talcum powder is dried, and is dried to each component material, further removes the impurity of each material surface.
Preferably, in the drying process step, dry temperature is 120 DEG C -150 DEG C, can not be if drying temperature is too low
Achieve the effect that in short time dry；If dry temperature is too high, the property of constituent will affect.The dry time is 3-
5 hours, if drying time is too short, it is poor to be dried effect；If drying time is too long, reaction efficiency can be reduced.
After drying process, handle each component substance mixing to obtain the first mixture.Mixing processing can be according to normal
The mixing method of rule carries out, such as stirring, as long as each component is uniformly mixed.
Specifically, first mixture is carried out melting mixing, extrusion, tie rod, cooling, is made in above-mentioned steps S03
Grain, obtains modified polyetherimide resin complexes.
Preferably, the equipment of the melting mixing is double screw extruder, in a preferred embodiment of the invention, the melting
In mixing step, melting temperature is 320-350 DEG C.First mixture progress melting mixing can be made into each group in this temperature
Point melting process in mix more uniform, keep function and effect between each component more preferable.If melting temperature is too low, part group can be made
Dividing melting, not exclusively the finished product each component being then prepared can not be uniformly mixed；If melting temperature is too high, moieties are easy
It decomposes, so that the property for the modified polyetherimide resin complexes being prepared is affected, be unfavorable for subsequent processed and applied.
Modified polyetherimide resin complexes of the invention are to squeeze out tie rod cooling granulation by melting mixing to obtain,
The preparation method enables each component substance to be sufficiently mixed uniformly, can have an effect mutually, make during melting mixing
The modified polyetherimide resin complexes being prepared have above-mentioned excellent performance, meanwhile, method and process letter of the invention
Single, condition is easily-controllable, high production efficiency, saves the economic cost of production.
Embodiment 1
Modified polyetherimide resin complexes constituent content and preparation method thereof.Wherein, it is used for modified polyetherimide
Described in the included weight ratio ingredient of resin complexes component table 1 as follows.Wherein, the preferred glass fibre of filler.Prepare liquid crystal
The monomer of polyester resin preferably is selected from by aromatic diol and aromatic dicarboxylic acid, and above two monomer is selected to carry out polycondensation Synthesis liquid
Brilliant polyester prepolyer；The liquid crystal polyester prepolymer is subjected to solid state condensation reaction；Obtain liquid-crystal polyester resin.
Preparation method: by 60 parts of polyetherimide resins (ULTEM 1000), 10 parts of above-mentioned liquid crystal being prepared are poly-
Ester resin, 20 parts of glass fibres, 10 parts of talcum powder, is placed in 130 DEG C of environment, 3 hours dry；By the polyetherimide after drying
Resin, liquid-crystal polyester resin, glass fibre and talcum powder investment automatic blender are uniformly mixed, and obtain the first mixed material；It will
Obtained the first mixture investment double screw extruder carries out 320 DEG C of melting mixings, and then by squeezing out, tie rod is cooling, makes
Grain, obtains modified polyetherimide resin complexes.
Embodiment 2
The present embodiment is the difference from embodiment 1 is that polyetherimide resin, liquid-crystal polyester resin, glass fibre and talcum
The weight ratio of powder is 50:20:20:10；Remaining place is substantially the same manner as Example 1, no longer repeats one by one herein.
Embodiment 3
The present embodiment is the difference from embodiment 1 is that polyetherimide resin, liquid-crystal polyester resin, glass fibre and talcum
The weight ratio of powder is 40:30:20:10；Remaining place is substantially the same manner as Example 1, no longer repeats one by one herein.
Comparative example
This comparative example is the difference from embodiment 1 is that polyetherimide resin, liquid-crystal polyester resin, glass fibre and talcum
The weight ratio of powder is 70:0:20:10；Remaining place is substantially the same manner as Example 1, no longer repeats one by one herein.
1 embodiment 1-3 of table and each constituent additive amount of comparative example
In order to verify composite properties prepared by the embodiment of the present invention 1~3 and comparative example 1, by 1~3 He of above-described embodiment
The modified polyetherimide resin complexes that comparative example 1 obtains respectively are as injection raw material, using injection moulding machine injection molding,
And the performance of modified polyetherimide resin complexes in embodiment and comparative example is tested and evaluated by the following method:
(1) melt viscosity
The melt viscosity that modified polyetherimide resin complexes of the embodiment of the present invention are related to uses capillary rheometer
(RH2000) under conditions of 350 DEG C and 1000/s obtained by measurement.
(2) tensile strength and stretch modulus
The stretching strength determination that modified polyetherimide resin complexes of the embodiment of the present invention are related to is according to ASTM D-638
Standard.
(3) heat distortion temperature
The heat distortion temperature that modified polyetherimide resin complexes of the embodiment of the present invention are related to is measured according to ASTM D-
648 standards.
Above-mentioned test result statistics is in table 2.
The modified polyetherimide resin complexes the performance test results that 2 embodiment 1-3 of table and comparative example are prepared
From upper table 2 it is found that the modified polyetherimide resin complexes of Examples 1 to 3 preparation are with liquid-crystal polyester resin
With the increase of the additive amount of talcum powder, melt viscosity is substantially reduced than the resin complexes prepared in comparative example, and mobility improves,
Plasticity enhancing, still, with the increase of melt viscosity content, tensile strength and stretch modulus can also decline.It is each by analyzing
The performance indicator of a embodiment, discovery are 20 parts when liquid-crystal polyester resin additive amount, and the additive amount of talcum powder is (real when being 10 parts
Apply example 2), the tensile strength and stretch modulus of modified polyetherimide resin complexes reach necessary requirement, and melt viscosity is very
Low, good flowing properties, plasticity is strong, can be widely used in the fields such as aerospace, automobile manufacture, electric.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of modified polyetherimide resin complexes, which is characterized in that the component including following parts by weight:
2. modified polyetherimide resin complexes according to claim 1, which is characterized in that the liquid-crystal polyester resin is
All aromatic liquid crystal polyester resin.
3. modified polyetherimide resin complexes according to claim 2, which is characterized in that the Wholly aromatic liquid crystal is poly-
Ester resin is formed by monomer reaction, wherein the monomer is in free aromatic diol, aromatic diamine and aromatic series azanol
At least one and aromatic dicarboxylic acid, aromatic hydroxy-carboxylic and aromatic amine yl carboxylic acid at least one.
4. according to any modified polyetherimide resin complexes of Claims 2 or 3, which is characterized in that the full fragrance
Race's liquid-crystal polyester resin includes at least one of following repetitive unit:
The repetitive unit of free aromatic diol :-O-Ar-O-
The repetitive unit of aromatic diamine:
The repetitive unit of aromatic series azanol:
The repetitive unit of aromatic dicarboxylic acid:
The repetitive unit of aromatic hydroxy-carboxylic:
The repetitive unit of aromatic amine yl carboxylic acid:
Wherein, Ar is selected from penylene, biphenylene, naphthalene, the aromatic compound that two penylenes are bonded by the element of carbon or non-carbon
At least one.
5. modified polyetherimide resin complexes according to claim 1, which is characterized in that the filler is selected from glass
At least one of fiber, whisker, carbon fiber.
6. modified polyetherimide resin complexes according to claim 1, which is characterized in that the modified polyether acyl is sub-
The particle size of polyimide resin compound is 1mm-3mm.
7. a kind of preparation method of modified polyetherimide resin complexes, comprising the following steps:
According to claim 1~6 any ratio weigh respectively polyetherimide resin, liquid-crystal polyester resin, filler and
Talcum powder；
The weighed polyetherimide resin, liquid-crystal polyester resin, filler and talcum powder are dried, mixing processing
Obtain the first mixture；
First mixture is subjected to melting mixing, extrusion, tie rod, cooling, granulation, it is multiple to obtain modified polyetherimide resin
Close object.
8. the preparation method of modified polyetherimide resin complexes according to claim 7, which is characterized in that the liquid crystal
Polyester resin the preparation method comprises the following steps:
At least two monomers are selected to carry out polycondensation synthesis liquid crystal polyester prepolymer；
The liquid crystal polyester prepolymer is subjected to solid state condensation reaction；Obtain liquid-crystal polyester resin.
9. the preparation method of modified liquid-crystal polyester resin compound according to claim 7, which is characterized in that the drying
In processing step, drying temperature is 120 DEG C -150 DEG C, drying time 3h-5h.
10. the preparation method of modified liquid-crystal polyester resin compound according to claim 7, which is characterized in that described molten
Melt in mixing step, melting temperature is 320-350 DEG C.
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| CN111040448A (en) * | 2019-12-16 | 2020-04-21 | 中广核高新核材科技（苏州）有限公司 | Thermoplastic polyimide cable material for nuclear power aviation |
| CN111073258A (en) * | 2019-12-24 | 2020-04-28 | 江苏沃特特种材料制造有限公司 | Polyphenyl ether composite material and preparation method thereof |
| CN113308091A (en) * | 2020-02-26 | 2021-08-27 | 广东生益科技股份有限公司 | Liquid crystal polyester resin composition and application thereof |
| CN116262855A (en) * | 2022-12-22 | 2023-06-16 | 乌镇实验室 | PEI (polyethylene terephthalate) casting film with high energy storage density and high flatness and preparation method thereof |
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| CN116262855A (en) * | 2022-12-22 | 2023-06-16 | 乌镇实验室 | PEI (polyethylene terephthalate) casting film with high energy storage density and high flatness and preparation method thereof |
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