CN106633678A - Liquid crystal polyester resin compound, preparation method thereof and application - Google Patents
Liquid crystal polyester resin compound, preparation method thereof and application Download PDFInfo
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- CN106633678A CN106633678A CN201611253547.8A CN201611253547A CN106633678A CN 106633678 A CN106633678 A CN 106633678A CN 201611253547 A CN201611253547 A CN 201611253547A CN 106633678 A CN106633678 A CN 106633678A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/60—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
- C09K19/542—Macromolecular compounds
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
Abstract
The invention discloses a liquid crystal polyester resin compound, a preparation method thereof and an application. The liquid crystal polyester resin compound is prepared from, by weight, 50-80 parts of liquid crystal polyester resin, 10-50 parts of filler 1, 20-30 parts of filler 2. The liquid crystal polyester resin compound takes the liquid crystal polyester resin as the basic resin; and the basic resin is modified through the filler 1 and the filler 2; thus the liquid crystal polyester resin compound has high weld mark intensity and mechanical strength, and low frictional coefficient; the preparation method has easily-controlled technique, the prepared material is stable in performance; the production cost is effectively reduced.
Description
Technical field
The invention belongs to technical field of polymer composite materials, and in particular to a kind of liquid-crystal polyester resin compound and its system
Preparation Method and application.
Background technology
Liquid-crystal polyester resin (LCP) is due to excellent mobile performance, electrical insulation capability, heat resistance, dimensionally stable
Performance etc., therefore it is widely used in the fields such as electronics, electric, automobile, aerospace.Printed circuit board (PCB), food can also be used for
Packaging, artificial satellite electronic unit, electric and automobile component, even as spacecraft component materials.Electron trade is
First big consumption market of liquid crystal polyester material, at past 10 years with the fast development of the consumer electronics industry, such as mobile phone, flat
The first-class field of plate computer, vehicle-mounted pick-up, camera module demand steeply rises, and the wide market demand causes relevant industries to send out
Exhibition is swift and violent.
It is a kind of outstanding shooting due to the mobile performance that LCP materials are excellent, high intensity, heat resistance and dimensional stability
Head mould group manufacture material, but with the development of industry, camera module is further harsh to the performance requirement of material, especially senior
Camera module requires that material not only has high intensity, and more requiring the part of material manufacture will not produce in use powder
Dirt, to avoid polluting camera lens, reduces the definition of camera, while most of camera module part is circular or square
Endless member, therefore it is required that there is high weld mark strength after the injection mo(u)lding of material, and conventional liquid crystal polyester material is often
It is unable to reach these requirements.
The content of the invention
It is an object of the invention to overcome the shortcomings of that above-mentioned prior art is present, there is provided a kind of liquid-crystal polyester resin compound
And preparation method and application, pay no attention to think of with the mechanical strength and weld mark strength that solve available liquid crystal polyester resin and used
The technical problem of dust is produced in journey.
In order to realize foregoing invention purpose, one aspect of the present invention, there is provided a kind of liquid-crystal polyester resin compound.The liquid
Brilliant polyester resin compound includes the component of following parts by weight：
Liquid-crystal polyester resin 50-80 parts
The 10-50 parts of filler 1
The 0-30 parts of filler 2；
Wherein, described filler 1 is one or more mixture in wollastonite；
Described filler 2 is other fillers.
A kind of another aspect of the present invention, there is provided preparation method of liquid-crystal polyester resin compound.The preparation method bag
Include following steps：
Each component raw material is weighed respectively according to the constituent species and content contained by liquid-crystal polyester resin compound of the present invention；
The each component raw material for weighing is carried out into melting mixing extrusion process.
The another aspect of the embodiment of the present invention, there is provided prepared by a kind of liquid-crystal polyester resin compound of the present invention or the present invention
Liquid-crystal polyester resin compound prepared by method is in voice coil motor (VCM), precision connector, plug connector, camera module or electricity
Application in sub- components and parts.
Compared with prior art, liquid-crystal polyester resin compound resin group based on liquid-crystal polyester resin of the present invention
Point, by the synergistic effect component of the filler 1 contained by it and filler 2 to base resin component modification, so as to give liquid of the present invention
The high mechanical strength of brilliant polyester resin compound and weld mark strength, while so that its coefficient of friction is low.
Liquid-crystal polyester resin compound preparation method of the present invention is according to the group contained by liquid-crystal polyester resin compound of the present invention
Each component is directly carried out melting mixing extrusion process by point species and ratio so that each component can be fully dispersed and each other
Have an effect so that the liquid-crystal polyester resin compound of extrusion has high mechanical strength and weld mark strength, while the system that rubs
Number is low.In addition, preparation method technique of the present invention is easily-controllable, the strong mechanical property of preparation effectively reduces its production cost.
There is mechanical strength and weld mark strength just because of liquid-crystal polyester resin compound of the present invention, coefficient of friction is low
Characteristic, effectively extends its range of application, is such as particularly well-suited to voice coil motor (VCM) and camera module, effectively increases phase
Answer the quality of product and the stability of work.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
The weight of embodiment of the present invention Related Component noted in the disclosure not only may refer to the concrete of each component
Content, it is also possible to represent the proportionate relationship of weight between each component, therefore, as long as according to embodiment of the present invention specification relevant group
The content divided is scaled up or reduced within embodiment of the present invention specification scope of disclosure.Specifically, the present invention is real
It can be mass unit known to the chemical fields such as μ g, mg, g, kg to apply the weight described in a specification.
On the one hand, the embodiment of the present invention provides a kind of liquid-crystal polyester resin compound.The liquid-crystal polyester resin compound
Including the component of following parts by weight：
Liquid-crystal polyester resin 50-80 parts
The 10-50 parts of filler 1
The 0-30 parts of filler 2.
So, the present embodiment liquid-crystal polyester resin compound resin Composition based on liquid-crystal polyester resin, by contained
The component such as filler 1, filler 2 it is modified to it, so as to give the high mechanical strength of liquid-crystal polyester resin compound of the present invention and molten
Lapping defect intensity and low coefficient of friction.
Specifically, in above-mentioned liquid-crystal polyester resin compound embodiment, the liquid-crystal polyester resin selects all aromatic liquid
Brilliant polyester resin.In one embodiment, all aromatic liquid crystal polyester resin number-average molecular weight is 10000-100000.The model
The molecular resin measurer for enclosing has can give the excellent mobility of compound and processing characteristics.As one embodiment of the invention, on
All aromatic liquid crystal polyester resin is stated at least containing following any one repetitive：
(1) from the repetitive of aromatic diol：-O-Ar-O-；
(2) from the repetitive of aromatic diamine：-HN-Ar-NH-；
(3) from the repetitive of aromatic series azanol：-HN-Ar-O-；
(4) from the repetitive of aromatic dicarboxylic acid：-OC-Ar-CO-；
(5) from the repetitive of aromatic hydroxy-carboxylic：-O-Ar-CO-；
(6) from the repetitive of aromatic amine yl carboxylic acid：-HN-Ar-CO-.
Wherein, the Ar groups in above-mentioned (1) to the repetitive shown in (6) be penylene, biphenylene, naphthalene, two penylenes by
The aromatic compound that the element of carbon or non-carbon is bonded any one, or for penylene, biphenylene, naphthalene, two penylenes by carbon or
The aromatic compound that more than one hydrogen in the aromatic compound that the element of non-carbon is bonded is replaced by other elements.
Thus all aromatic liquid crystal polyester resin of construction unit monomer manufacture has excellent resistance to elevated temperatures and mobility, processing
Property.Above-mentioned liquid-crystal polyester resin can with but be not only prepared as follows acquisition：
First the first monomer and second comonomer are carried out into polycondensation reaction, then the polycondensation reaction is synthesized into Wholly aromatic liquid crystal
Polyester prepolyer carries out solid state polycondensation and prepares.
Wherein, first monomer is at least one in free aromatic diol, aromatic diamine, aromatic series azanol,
The second comonomer is at least one in aromatic dicarboxylic acid, aromatic hydroxy-carboxylic, aromatic amine yl carboxylic acid.It is specifically fragrant
Fragrant race's glycol, aromatic diamine, aromatic series azanol, aromatic dicarboxylic acid, aromatic hydroxy-carboxylic, aromatic amine yl carboxylic acid
To be but not only from conventional respective compound.
In a further embodiment, above-mentioned first monomer and/or second comonomer be before above-mentioned polycondensation reaction is carried out, in advance
Pre-processed by acylation agent, to improve reactive monomeric.Specifically, the acylation agent is at least in acetyl group agent
Kind.Specifically such as pre-process the first monomer and/or second comonomer to improve the first monomer when acylation agent is acetyl group agent
And/or the acetylizad monomer of second comonomer reactivity.
During polycondensation reaction synthesis Wholly aromatic liquid crystal polyester prepolyer to be carried out solid state polycondensation, by solid phase
Polycondensation reaction carries the molecular weight of product, obtains the suitable liquid-crystal polyester resin of molecular weight.Need in the solid state polycondensation process
Heat, such as can adopt can provide heat energy using heating plate, hot blast, high temperature fluid method to solid state polycondensation.For
The accessory substance of solid state polycondensation is removed, using inert gas purge or vacuum removing is utilized.
Filler contained by above-mentioned liquid-crystal polyester resin compound can be acted on matrix liquid-crystal polyester resin, be effectively improved liquid
The mechanical performance and processing characteristics of brilliant polyester resin, so as to give the excellent mechanical performance of above-mentioned liquid-crystal polyester resin compound and
Weld mark strength and coefficient of friction, particularly improve mechanical strength and weld mark strength, reduce the coefficient of friction of material.
It is 0 when the content of above-mentioned filler 2 is different.In one embodiment, the preferred content of the filler 2 is 10-20 parts.This
When filler 1 and filler 2 it is compound and liquid-crystal polyester resin matrix component is acted on, significantly reduce above-mentioned liquid-crystal polyester resin compound
Coefficient of friction, improve mechanical strength and weld mark strength.
In one embodiment, filler 1 is one or more mixture in wollastonite.In another embodiment, filler 1
Preferable particle size scope be 400-1250 mesh.
In one embodiment, filler 2 is other fillers in addition to filler 1.In specific embodiment, described other fillers are
One or more mixing in glass fibre, whisker, talcum powder, carbon black, calcium carbonate, clay, barium sulfate, silica
Thing.Wherein, the preferred size of glass fibre and/or whisker be 7-15 μm of diameter, length 50-150 μm, talcum powder, carbon black, carbonic acid
Any one particle diameter preferred scope is 200-800 mesh in calcium, clay, barium sulfate, silica.
The filler 1 of above-mentioned preferred kind and size and the time of filler 2 can further function as synergistic effect, improve to matrix
The effect of liquid-crystal polyester resin, so as to improving the mechanical strength and weld mark strength of liquid-crystal polyester resin compound and reducing it
Coefficient of friction.
On the other hand, one kind side of preparation of liquid-crystal polyester resin compound in above-described embodiment is embodiments provided
Method.In one embodiment, the liquid-crystal polyester resin compound preparation method comprises the steps：
Step S01：As described above the constituent species and content contained by liquid-crystal polyester resin compound are weighed respectively respectively
Component raw material；
Step S02：The each component raw material for weighing is carried out into melting mixing extrusion process.
Wherein, as described above liquid crystal gathers for the content of each component for weighing in above-mentioned steps S01 and selected composition
Described in ester resin complexes, in order to save length, will not be described here.
In above-mentioned steps S02, each component raw material in the presence of the high pressure and hyperpyrexia that melting mixing is extruded it is fully dispersed simultaneously
Have an effect each other, so as to realize that liquid-crystal polyester resin is acted on so that Jing melting mixings extrusion obtains target product liquid
Brilliant polyester resin compound, and give liquid-crystal polyester resin compound there is low coefficient of friction and high mechanical strength and welding
Trace intensity.In one embodiment, the melting mixing extrusion temperature is 310-350 DEG C, so that each group is filled in the molten state
Divide and be well mixed and fully act on, reduce liquid-crystal polyester resin compound coefficient of friction, the mechanical strength and weld mark of raising is strong
Degree.
In one embodiment, above-mentioned melting mixing extrusion can with but not only lead to weight-loss type automatic feeder and throw in original in proportion
Material, by double screw extruder melting mixing extrusion process is carried out.
In addition, before above-mentioned steps S02 are carried out, also including that each component raw material to weighing is dried process, such as exist
It is dried 4 hours at 130-160 DEG C.
After treating step S02, can also include that the liquid-crystal polyester resin compound generated to melting mixing extrusion process enters
The subsequent steps such as row tie rod, cooling, granulation.
Therefore, embodiment of the present invention liquid-crystal polyester resin compound preparation method liquid-crystal polyester resin as described above
Each component is directly carried out melting mixing extrusion process by the constituent species and ratio contained by compound so that each component can be abundant
Dispersion is simultaneously had an effect each other so that the liquid-crystal polyester resin compound mechanical strength of extrusion and weld mark strength are high, its
Coefficient of friction is low.In addition, the preparation method technique is easily-controllable, the material of preparation is stablized, and effectively reduces its production cost.
On the basis of based on above-mentioned liquid-crystal polyester resin compound and preparation method thereof, just because of liquid crystal polyester of the present invention
Resin complexes have high mechanical strength and the characteristic such as weld mark strength and low coefficient of friction, effectively extend its application
Scope, the such as application in voice coil motor (VCM), precision connector, plug connector, camera module or electronic devices and components, especially
Suitable for magazine voice coil motor (VCM) and camera module material, due to the excellent mechanical strength of material tool and weld mark
The characteristic such as intensity and low coefficient of friction, effectively increases the quality such as voice coil motor (VCM) and camera module, and,
Avoid dust pollution camera lens, it is ensured that the definition of camera.
Above-mentioned liquid-crystal polyester resin compound and preparation method thereof is described in detail below in conjunction with specific embodiment.
Embodiment 1
Present embodiments provide a kind of liquid-crystal polyester resin compound and preparation method thereof.The liquid-crystal polyester resin is combined
Thing includes the component and content of the parts by weight in table 1 below.Wherein,
Liquid-crystal polyester resin average molecular weight is 35000, and wollastonite size is 800 mesh.
The preparation method of liquid-crystal polyester resin compound is as follows：
S11. the preparation of liquid-crystal polyester resin：Resin structure unit be P-hydroxybenzoic acid, terephthalic acid (TPA), xenol,
6- hydroxyl -2- naphthoic acids and M-phthalic acid, acetylizing agent is acetic anhydride；
S12. according to the parts by weight described in embodiment 1 in table 1, the liquid-crystal polyester resin (Wholly aromatic liquid crystal that will be selected
Polyester resin, Jiangsu water special material Manufacturing Co., Ltd) 70 parts, 30 parts of wollastonite is in 130 DEG C of dryings 4 hours；
S13. by the dried liquid-crystal polyester resin of step S12, wollastonite input weight-loss type feeding machine, pressed by feeding machine
Raw material input double screw extruder is carried out into melting mixing at 325 DEG C according to formula rate, then through extrusion, tie rod, cooling,
Granulation produces liquid-crystal polyester resin compound.
Embodiment 2
Present embodiments provide a kind of liquid-crystal polyester resin compound and preparation method thereof.The liquid-crystal polyester resin is combined
Thing includes the component and content of the parts by weight in table 1 below.Wherein,
Liquid-crystal polyester resin average molecular weight is 35000, and wollastonite size is 800 mesh, and talcum powder (H50) size is 300 mesh.
The preparation method of liquid-crystal polyester resin compound is as follows：
S21. the preparation of liquid-crystal polyester resin：Resin structure unit be P-hydroxybenzoic acid, terephthalic acid (TPA), xenol,
6- hydroxyl -2- naphthoic acids and M-phthalic acid, acetylizing agent is acetic anhydride；
S22. according to the parts by weight described in embodiment 2 in table 1, the liquid-crystal polyester resin (Wholly aromatic liquid crystal that will be selected
Polyester resin, Jiangsu water special material Manufacturing Co., Ltd) 70 parts, 20 parts of wollastonite, 10 parts of talcum powder (H50), at 130 DEG C
It is dried 4 hours；
S23. by the dried liquid-crystal polyester resin of step S22, wollastonite, talcum powder (H50) input weight-loss type feeding machine,
Raw material input double screw extruder is carried out by melting mixing at 325 DEG C according to formula rate by feeding machine, then through squeezing
Go out, tie rod, cool down, granulation produces liquid-crystal polyester resin compound.
Embodiment 3
Present embodiments provide a kind of liquid-crystal polyester resin compound and preparation method thereof.The liquid-crystal polyester resin is combined
Thing includes the component and content of the parts by weight in table 1 below.Wherein,
Liquid-crystal polyester resin average molecular weight is 35000, and wollastonite size is 800 mesh, and talcum powder (H50) size is 300 mesh.
The preparation method of liquid-crystal polyester resin compound is as follows：
S31. the preparation of liquid-crystal polyester resin：Resin structure unit be P-hydroxybenzoic acid, terephthalic acid (TPA), xenol,
6- hydroxyl -2- naphthoic acids and M-phthalic acid, acetylizing agent is acetic anhydride；
S32. according to the parts by weight described in embodiment 3 in table 1, the liquid-crystal polyester resin (Wholly aromatic liquid crystal that will be selected
Polyester resin, Jiangsu water special material Manufacturing Co., Ltd) 70 parts, 10 parts of wollastonite, 20 parts of talcum powder (H50), at 130 DEG C
It is dried 4 hours；
S33. by the dried liquid-crystal polyester resin of step S32, wollastonite, talcum powder (H50) input weight-loss type feeding machine,
Raw material input double screw extruder is carried out by melting mixing at 325 DEG C according to formula rate by feeding machine, then through squeezing
Go out, tie rod, cool down, granulation produces liquid-crystal polyester resin compound.
Comparative example 1
A kind of liquid-crystal polyester resin compound is provided, it includes the component and content of the parts by weight in table 1 below.Its system
Preparation method of the Preparation Method with reference to embodiment 1.
Comparative example 2
A kind of liquid-crystal polyester resin compound is provided, it includes the component and content of the parts by weight in table 1 below.Its system
Preparation method of the Preparation Method with reference to embodiment 1.
The test of respective performances
The liquid crystal that the liquid-crystal polyester resin compound that above-described embodiment 1 to embodiment 3 is provided and comparative example 1,2 are provided gathers
Ester resin complexes respectively as injection raw material, using injection moulding machine injection mo(u)lding, then by following examination criteria to it
Carry out performance test to be tested respectively, test result is as described in Table 2：
(1) bending strength：Test by ASTM D-790.
(2) coefficient of friction：Tested by ASTM D1894 methods.
(3) weld mark strength：Using special dies injection mo(u)lding, sample size 100 ± 1mm of length, width 12.7 ±
0.1mm, 1.0 ± 0.1mm of thickness, plastisol enters grinding tool from sample two ends during injection, and weld bond is located at sample midpoint, injection
The bending strength of test sample after shaping, test condition is：Fulcrum span 40mm, pressure head radius 5mm, loading velocity 2mm/min.
Table 1
| Component | Comparative example 1 | Comparative example 2 | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Liquid-crystal polyester resin | 70 | 70 | 70 | 70 | 70 |
| Wollastonite | 0 | 0 | 30 | 20 | 10 |
| Glass fibre | 30 | 0 | 0 | 0 | 0 |
| Talcum powder | 0 | 30 | 0 | 10 | 20 |
Table 2
| Performance indications | Comparative example 1 | Comparative example 2 | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Coefficient of friction | 0.38 | 0.30 | 0.29 | 0.28 | 0.28 |
| Weld mark strength (MPa) | 33.4 | 26.3 | 33.2 | 32.5 | 31.8 |
| Bending strength (MPa) | 160 | 120 | 125 | 123 | 123 |
With reference to above-mentioned table 2, embodiment 1-3 compared with the liquid-crystal polyester resin compound manufactured in comparative example 1-2, embodiment
1-3 has lower coefficient of friction compared with the composite of comparative example 1, and embodiment 1-3 has higher compared with the composite of comparative example 2
Weld mark strength.Therefore, embodiment of the present invention liquid crystal polyester compound has higher weld mark strength and relatively low simultaneously
Coefficient of friction, it is adaptable to manufacture VCM and camera module, but be not limited only to this.
Specific embodiment used herein is set forth to the principle and embodiment of the present invention, the explanation of embodiment
It is only intended to help and understands the method for the present invention and its core concept, the foregoing is only presently preferred embodiments of the present invention,
Not to limit the present invention, all any modification, equivalent and improvement made within the spirit and principles in the present invention etc.,
Should be included within the scope of the present invention.
Claims (10)
1. a kind of liquid-crystal polyester resin compound, it is characterised in that including the component of following parts by weight：
Liquid-crystal polyester resin 50-80 parts
The 10-50 parts of filler 1
The 0-30 parts of filler 2；
Wherein, described filler 1 is one or more mixture in wollastonite；
Described filler 2 is other fillers.
2. liquid-crystal polyester resin compound according to claim 1, it is characterised in that：Described other fillers are glass fibers
One or more mixture in dimension, whisker, talcum powder, carbon black, calcium carbonate, clay, barium sulfate, silica.
3. liquid-crystal polyester resin compound according to claim 1, it is characterised in that：The liquid-crystal polyester resin is full virtue
Fragrant race's liquid-crystal polyester resin, all aromatic liquid crystal polyester resin number-average molecular weight is 10000-100000.
4. liquid-crystal polyester resin compound according to claim 3, it is characterised in that：The Wholly aromatic liquid crystal polyester tree
Fat is at least containing following any one repetitive：
-O-Ar-O-、-HN-Ar-NH-、-HNAr-O-、-OC-Ar-CO-、-O-Ar-CO-、-HN-Ar-CO-；
And the Ar groups in the repetitive are that penylene, biphenylene, naphthalene, two penylenes are bonded by the element of carbon or non-carbon
Aromatic compound any one, or the virtue being bonded by the element of carbon or non-carbon for penylene, biphenylene, naphthalene, two penylenes
The aromatic compound that more than one hydrogen in fragrant compounds of group is replaced by other elements.
5. according to the arbitrary described liquid-crystal polyester resin compound of claim 1-4, it is characterised in that：The Wholly aromatic liquid crystal
Polyester prepolyer is first the first monomer and second comonomer to be carried out into polycondensation reaction, then the polycondensation reaction is synthesized into all aromatic
Liquid crystal polyester prepolymer carries out solid state polycondensation and prepares；Wherein, first monomer is free aromatic diol, fragrance
At least one in race's diamines, aromatic series azanol, the second comonomer is aromatic dicarboxylic acid, aromatic hydroxy-carboxylic, fragrance
At least one in race's amino carboxylic acid.
6. liquid-crystal polyester resin compound according to claim 5, it is characterised in that：First monomer and/or second
Monomer is pre-processed in advance by acylation agent.
7. liquid-crystal polyester resin compound according to claim 6, it is characterised in that：The acylation agent is acetylating
At least one in agent.
8. a kind of preparation method of liquid-crystal polyester resin compound, comprises the steps：
Weigh respectively respectively according to the constituent species and content contained by the arbitrary described liquid-crystal polyester resin compound of claim 1-7
Component raw material；
The each component raw material for weighing is carried out into melting mixing extrusion process.
9. preparation method according to claim 8, it is characterised in that：The temperature of the melting mixing extrusion process is 310-
350℃。
10. the arbitrary described liquid-crystal polyester resin compound of claim 1-7 or by the arbitrary described preparation of claim 8-9
Liquid-crystal polyester resin compound prepared by method is in voice coil motor (VCM), precision connector, plug connector, camera module or electricity
Application in sub- components and parts.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11084925B2 (en) | 2018-02-20 | 2021-08-10 | Ticona Llc | Thermally conductive polymer composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11084925B2 (en) | 2018-02-20 | 2021-08-10 | Ticona Llc | Thermally conductive polymer composition |
| US11725105B2 (en) | 2018-02-20 | 2023-08-15 | Ticona Llc | Thermally conductive polymer composition |
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Application publication date: 20170510 |