CN113462160A - TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and preparation method thereof - Google Patents
TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and preparation method thereof Download PDFInfo
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- CN113462160A CN113462160A CN202110780161.7A CN202110780161A CN113462160A CN 113462160 A CN113462160 A CN 113462160A CN 202110780161 A CN202110780161 A CN 202110780161A CN 113462160 A CN113462160 A CN 113462160A
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- tlcp
- polyphenylene sulfone
- composite material
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- polycarbonate
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- 229920012287 polyphenylene sulfone Polymers 0.000 title claims abstract description 90
- 239000004417 polycarbonate Substances 0.000 title claims abstract description 74
- 229920000515 polycarbonate Polymers 0.000 title claims abstract description 74
- 239000002131 composite material Substances 0.000 title claims abstract description 47
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 229920000106 Liquid crystal polymer Polymers 0.000 title abstract description 5
- 239000004974 Thermotropic liquid crystal Substances 0.000 title abstract description 5
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- VFFIMLUMUJIUFO-UHFFFAOYSA-N 2,6-ditert-butyl-4-isocyanatophenol Chemical compound CC(C)(C)C1=CC(N=C=O)=CC(C(C)(C)C)=C1O VFFIMLUMUJIUFO-UHFFFAOYSA-N 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 239000007983 Tris buffer Substances 0.000 claims description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- WCCJDBZJUYKDBF-UHFFFAOYSA-N copper silicon Chemical compound [Si].[Cu] WCCJDBZJUYKDBF-UHFFFAOYSA-N 0.000 claims description 2
- 229920001910 maleic anhydride grafted polyolefin Polymers 0.000 claims description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- -1 TLCP Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 239000011863 silicon-based powder Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 11
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 2
- 230000007547 defect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 239000000155 melt Substances 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002861 polymer material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
- C08L81/06—Polysulfones; Polyethersulfones
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and a preparation method thereof, wherein the TLCP modified polyphenylene sulfone/polycarbonate composite material comprises the following components in parts by mass: 50-70% of polyphenylene sulfone resin; 10-25% of polycarbonate; TLCP 5-10%; 5-10% of glass fiber; 0-5% of auxiliary agent. The TLCP modified polyphenylene sulfone/polycarbonate composite material prepared by the invention can overcome the defects that the existing polyphenylene sulfone material is high in melting point and viscosity and not beneficial to processing and molding, and is beneficial to large-scale popularization and application.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and a preparation method thereof.
Background
Polyphenylene Sulfone (PPSU) has good mechanical properties, biocompatibility, solvent resistance and excellent heat resistance, making it less desirable in the market, however, thermoplastic PPSU's up to 335 ℃ processing temperature and large melt viscosity prevent large scale use of PPSU. The Glass Fiber (GF) has extremely high tensile strength and modulus and low price, and the polyphenylene sulfone matrix filled with the GF not only can greatly reduce the preparation cost of the material, but also can improve the strength, rigidity, dimensional stability and heat resistance of the polymer, thereby being an important means for modifying the polymer material. However, the preparation of the formed GF/PPSU composite material needs high temperature, the production and preparation efficiency is extremely low, the preparation time is long, and the large-scale popularization and use are not facilitated.
Accordingly, there is still a need for advancement and development of the prior art.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a TLCP-modified polyphenylene sulfone/polycarbonate composite material and a preparation method thereof, and aims to solve the technical problem that the conventional polyphenylene sulfone material is difficult to be used in large scale in industry.
The technical scheme of the invention is as follows:
the TLCP modified polyphenylene sulfone/polycarbonate composite material comprises the following components in percentage by mass:
the TLCP modified polyphenylene sulfone/polycarbonate composite material is characterized in that the polyphenylene sulfone resin is a linear polymer prepared by reacting polyphenylene sulfide with peracetic acid.
The TLCP modified polyphenylene sulfone/polycarbonate composite material is characterized in that the auxiliary agent comprises a compatilizer, an antioxidant and a lubricant.
The TLCP modified polyphenylene sulfone/polycarbonate composite material is characterized in that the compatilizer is maleic anhydride grafted polyolefin.
The TLCP modified polyphenylene sulfone/polycarbonate composite material is characterized in that the antioxidant is a mixture of 2, 6-di-tert-butyl-p-cresol, 1, 3, 5-tris (3, 5-di-tert-butyl-4-hydroxyphenyl) isocyanate and tris (2, 4-di-tert-butylphenyl) phosphite.
The TLCP modified polyphenylene sulfone/polycarbonate composite material is characterized in that the lubricant is a mixture of silicon copper powder, calcium stearate and N, N' -ethylene bis stearamide.
The invention also provides a preparation method of the TLCP modified polyphenylene sulfone/polycarbonate composite material, which is used for preparing the TLCP modified polyphenylene sulfone/polycarbonate composite material, and comprises the following steps:
mixing polyphenylene sulfone resin, polycarbonate, glass fiber, TLCP and an auxiliary agent to obtain a mixture;
and sequentially carrying out melt extrusion and granulation on the mixture to obtain the TLCP modified polyphenylene sulfone/polycarbonate composite material.
Has the advantages that: according to the invention, the melting point of the system can be effectively reduced by adding the polycarbonate, the glass fiber and the TLCP into the polyphenylene sulfone resin, and the melt flow property of the system is greatly increased, wherein the added polycarbonate with low viscosity can effectively wrap the polyphenylene sulfone with high viscosity, and the added TLCP can further dilute the system on the basis that the viscosity of the system is reduced by the polycarbonate, so that the viscosity of the system is reduced, and meanwhile, the internal structure of the system is adjusted.
Detailed Description
The invention provides a TLCP modified polyphenylene sulfone/polycarbonate composite material and a preparation method thereof, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and clearer. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material, which comprises the following components in percentage by mass: 50-70% of polyphenylene sulfone resin; 10-25% of polycarbonate; TLCP 5-10%; 5-10% of glass fiber; 0-5% of auxiliary agent.
According to the invention, the melting point of the system can be effectively reduced by adding Polycarbonate (PC), glass fiber and TLCP into polyphenylene sulfone resin (PPSU), and the melt flow property of the system is greatly increased, wherein the added polycarbonate with low viscosity can coat the PPSU with high viscosity, so that the viscosity of the whole system is obviously reduced; meanwhile, the viscosity of the whole system can be further diluted by adding TLCP into the system, and the added TLCP can adjust the internal structure of the whole system, so that the formation of the TLCP modified polyphenylene sulfone/polycarbonate composite material is facilitated.
Furthermore, the glass fiber is added in the TLCP modified polyphenylene sulfone/polycarbonate composite material, and the added glass fiber can enhance the strength of the prepared TLCP modified polyphenylene sulfone/polycarbonate composite material, so that the prepared TLCP modified polyphenylene sulfone/polycarbonate composite material has good mechanical properties.
In addition, the polyphenylene sulfone and the polycarbonate adopted in the invention are both polymer materials with rigid molecular chains, the molecular chains of the polymer materials are easy to form stable fibril aggregation-like structures, the bundled fibrils are disorderly and staggered to form loose networks, and a large amount of free spaces in the networks can absorb a large amount of energy from an external load, so that the TLCP modified polyphenylene sulfone/polycarbonate composite material prepared by the invention has better impact resistance.
Further, the invention provides a preparation method of the TLCP modified polyphenylene sulfone/polycarbonate composite material, which comprises the following steps:
s10, mixing polyphenylene sulfone resin, polycarbonate, glass fiber, TLCP and an auxiliary agent to obtain a mixture;
and S20, sequentially carrying out melt extrusion and granulation on the mixture to obtain the TLCP modified polyphenylene sulfone/polycarbonate composite material.
The preparation of a polyphenylene sulfone/polycarbonate composite material according to the invention is further illustrated by the following specific examples:
example 1
Taking 100g of polyphenylene sulfone, 20g of polycarbonate, 10g of glass fiber and 10g of TLCP, placing the polyphenylene sulfone and the polycarbonate in an oven, drying at 80 ℃ for 4-6h, then uniformly mixing the polyphenylene sulfone, the polycarbonate, the glass fiber and the TLCP, extruding through an extruder, and carrying out cold cutting on the drawn wire rod to obtain the polyphenylene sulfone/polycarbonate composite material.
Example 2
The polyphenylene sulfone/polycarbonate composite material is prepared by taking 140g of polyphenylene sulfone, 20g of polycarbonate, 10g of glass fiber and 10g of TLCP, placing the polyphenylene sulfone and the polycarbonate in an oven, drying at 80 ℃ for 4-6h, then uniformly mixing the polyphenylene sulfone, the polycarbonate, the glass fiber and the TLCP, extruding through an extruder, and carrying out cold cutting on a drawn wire rod.
Example 3
The polyphenylene sulfone/polycarbonate composite material is prepared by taking 140g of polyphenylene sulfone, 50g of polycarbonate, 10g of glass fiber and 10g of TLCP, placing the polyphenylene sulfone and the polycarbonate in an oven, drying at 80 ℃ for 4-6h, then uniformly mixing the polyphenylene sulfone, the polycarbonate, the glass fiber and the TLCP, extruding through an extruder, and carrying out cold cutting on a drawn wire rod.
Example 4
The polyphenylene sulfone/polycarbonate composite material is prepared by taking 140g of polyphenylene sulfone, 50g of polycarbonate, 20g of glass fiber and 10g of TLCP, placing the polyphenylene sulfone and the polycarbonate in an oven, drying at 80 ℃ for 4-6h, then uniformly mixing the polyphenylene sulfone, the polycarbonate, the glass fiber and the TLCP, extruding through an extruder, and carrying out cold cutting on a drawn wire rod.
Example 5
The preparation method comprises the following steps of taking 140g of polyphenylene sulfone, 50g of polycarbonate, 20g of glass fiber and 20g of TLCP, placing the polyphenylene sulfone and the polycarbonate in an oven, drying at 80 ℃ for 4-6h, then uniformly mixing the polyphenylene sulfone, the polycarbonate, the glass fiber and the TLCP, extruding the mixture through an extruder, and carrying out cold cutting on the drawn wire rod to obtain the polyphenylene sulfone/polycarbonate composite material.
Example 6
The polyphenylene sulfone/polycarbonate composite material is prepared by taking 140g of polyphenylene sulfone, 50g of polycarbonate, 20g of glass fiber, 20g of TLCP and 10g of auxiliary agent, placing the polyphenylene sulfone and the polycarbonate in an oven, drying at 80 ℃ for 4-6h, then uniformly mixing the polyphenylene sulfone, the polycarbonate, the glass fiber, the TLCP and the auxiliary agent, extruding through an extruder, and carrying out cold cutting on a drawn wire rod.
Example 7
The polyphenylene sulfone material was obtained by taking 140g of the polyphenylene sulfone and placing the polyphenylene sulfone in an oven, drying at 80 ℃ for 4 to 6 hours, thereafter, extruding the polyphenylene sulfone through an extruder and cold-pelletizing the drawn strand.
Further, in the present invention, the performance of the TLCP-modified polyphenylene sulfone/polycarbonate composite materials prepared in examples 1 to 7 was analyzed, wherein example 7 was used as a control group, and the results are shown in the following table:
in the present invention, 30g of the cold-cut material particles prepared in examples 1 to 7 were taken, respectively, and the weighed material examples were placed in an oven to be dried, and thereafter, the injection molding temperature of the material examples prepared in examples 1 to 7 was measured by an injection molding machine. The results in the table show that the injection molding temperature of the TLCP-modified polyphenylene sulfone/polycarbonate composite material prepared by the present invention is significantly reduced compared to the polyphenylene sulfone material.
Further, in the present invention, the melt flow rate of the material particles in examples 1 to 7 was measured by a melt flow rate meter, wherein the temperature was set to 330 ℃, the load was 5kg, and the die factor was 2.065, and the results are shown in the following table:
from the above table data, it can be seen that the melt flow rate of the TLCP modified polyphenylene sulfone/polycarbonate composite material prepared in accordance with the present invention is significantly increased relative to the melt flow rate of the polyphenylene sulfone material prepared in example 7.
Further, the mechanical properties of the material particles prepared in examples 1 to 7 were analyzed in the present invention, and the results are shown in the following table:
as can be seen from the data in the table, the TLCP modified polyphenylene sulfone/polycarbonate composite material prepared by the invention has better mechanical property.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (7)
1. The TLCP modified polyphenylene sulfone/polycarbonate composite material is characterized by comprising the following components in percentage by mass:
2. the TLCP-modified polyphenylene sulfone/polycarbonate composite material of claim 1, wherein the polyphenylene sulfone resin is a linear polymer prepared by reacting polyphenylene sulfide with peracetic acid.
3. The TLCP-modified polyphenylene sulfone/polycarbonate composite material of claim 1, wherein the auxiliaries comprise a compatibilizer, an antioxidant, and a lubricant.
4. The TLCP modified polyphenylene sulfone/polycarbonate composite of claim 3, wherein the compatibilizer is a maleic anhydride grafted polyolefin.
5. The TLCP-modified polyphenylene sulfone/polycarbonate composite material of claim 3, wherein the antioxidant is a mixture of 2, 6-di-tert-butyl-p-cresol, 1, 3, 5-tris (3, 5-di-tert-butyl-4-hydroxyphenyl) isocyanate and tris (2, 4-di-tert-butylphenyl) phosphite.
6. The TLCP modified polyphenylene sulfone/polycarbonate composite material of claim 3, wherein the lubricant is a mixture of copper silicon powder, calcium stearate and N, N' -ethylene bis stearamide.
7. A method of preparing a TLCP-modified polyphenylene sulfone/polycarbonate composite material for preparing the TLCP-modified polyphenylene sulfone/polycarbonate composite material of any one of claims 1 to 6, comprising the steps of:
mixing polyphenylene sulfone resin, polycarbonate, TLCP, glass fiber and an auxiliary agent to obtain a mixture;
and sequentially carrying out melt extrusion and granulation on the mixture to obtain the TLCP modified polyphenylene sulfone/polycarbonate composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780161.7A CN113462160A (en) | 2021-07-09 | 2021-07-09 | TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780161.7A CN113462160A (en) | 2021-07-09 | 2021-07-09 | TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and preparation method thereof |
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| CN113462160A true CN113462160A (en) | 2021-10-01 |
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| CN202110780161.7A Pending CN113462160A (en) | 2021-07-09 | 2021-07-09 | TLCP (thermotropic liquid Crystal Polymer) modified polyphenylene sulfone/polycarbonate composite material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181409A (en) * | 2022-08-19 | 2022-10-14 | 苏州奥美材料科技有限公司 | Modified polycarbonate composite material and preparation method and application thereof |
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