CN111040448A - Thermoplastic polyimide cable material for nuclear power aviation - Google Patents
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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
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to a thermoplastic polyimide cable material for nuclear power aviation, which comprises the following components in parts by weight: 5-30 parts of polyimide, 5-30 parts of polyetherimide, 30-70 parts of siloxane-containing polyetherimide, 5-30 parts of ether bond-containing polar resin, 5-30 parts of liquid crystal polymer, 5-30 parts of nonpolar crystalline resin, 5-30 parts of silicon resin, 5-20 parts of talcum powder, 0.2-1 part of processing aid, 0.1-1 part of antioxidant and 0.1-10 parts of additive. According to the invention, different types of polyimide base resins are mixed and used, and processing performance improving materials such as ether bond-containing polar resin, liquid crystal polymer, non-polar crystalline resin, silicone resin, talcum powder and the like are used, so that the heat resistance and the processing performance are improved, the comprehensive performances such as radiation resistance, high flame retardance, high insulating performance and the like of the base material are also improved, the cable material can be processed by using traditional thermoplastic cable processing equipment, and the cable processing technology is simplified.
Description
Technical Field
The invention relates to a cable material, in particular to a thermoplastic polyimide cable material for nuclear power aviation.
Background
The cable materials used for nuclear power stations in the market at present are various in types and quantity, such as cross-linked polyolefin materials, ethylene propylene rubber, low-smoke halogen-free flame retardant materials and the like, and in order to meet the requirements of nuclear-grade cables, the cable materials contain a large amount of flame retardants, anti-irradiation agents and the like, so that the mechanical property of the materials is reduced and the processing difficulty is improved due to the addition of a large amount of components. The cable material for the nuclear power station has good electrical performance and mechanical and physical performance, and has excellent heat resistance and radiation resistance.
The polyimide has the advantages of high and low temperature resistance, solvent resistance, radiation resistance, combustion resistance, excellent mechanical property, no toxicity and environmental friendliness, and is widely applied to the high-tech fields of aerospace, nuclear power, automobile manufacturing, electronics and electricity, machinery, chemical engineering, microelectronics and the like.
After STM series thermoplastic siloxane-containing polyetherimide materials are self-introduced from GE company, the problems of plasticity, fluidity and hardness of polyimide materials are solved, so that the materials are applied to the field of aviation cables and become thermoplastic polyimide cable materials in the true sense. From the research on the polyimide cable material at present, CN 105153700 a uses polyetherimide as a base material, and is matched with polybenzimidazole and ethylene-methyl acrylate-glycidyl methacrylate terpolymer, and is filled with ceramic powder to prepare a radiation-resistant polyetherimide material for nuclear power station cables. The material is hard and the heat resistance needs to be improved. CN 105924809A, CN103992567B and CN201410066061.8 take ethylene propylene diene monomer as a base material, polyimide is compounded, and ceramic powder and a cross-linking agent are added to prepare the radiation-resistant cable material for nuclear power. However, the cable material is still a vulcanized rubber material, and the heat resistance is still required to be improved. CN 103613882B uses PVC resin as base material, and compounds polyetherimide and ABS resin to prepare the wire and cable material for radiation-resistant nuclear power station. The material substrate limits the heat resistance of the material. CN105440676A is compounded by polyetherimide, polybenzimidazole and dammar resin to prepare the radiation-resistant cable insulation material for the nuclear power station, which has good radiation resistance, heat resistance and aging resistance. However, the material is hard and the plastic workability is still to be improved. CN 106543520A and CN 107793624A use polyethylene as base material, add polyimide to prepare cable material with good performance, and CN 106280448B and CN 106380821A use graphene to compound polyimide to prepare cable material with enhanced thermal stability. However, these cable materials do not meet the requirements of nuclear and aviation cable materials. CN 109705576A discloses a wear-resistant self-lubricating thermoplastic polyimide composite material and a preparation method thereof, wherein ether bond-containing polar resin and nonpolar crystalline resin are used in combination, and the thermoplasticity processing performance of the polyimide composite material is improved through the synergistic modification effect of the two high molecular resins, but the normal-temperature and low-temperature flexibility and melt fluidity of the material are still required to be improved.
In conclusion, the development of a thermoplastic polyimide cable material with good insulation performance, processability, heat resistance, mechanical properties and the like is still a problem to be solved in the field.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a thermoplastic polyimide cable material for nuclear power aviation, which improves the heat resistance and processability of the polyimide cable material, and can be processed by using traditional thermoplastic cable processing equipment, thereby simplifying the cable processing technology.
The thermoplastic polyimide cable material for nuclear power aviation comprises the following components in parts by weight:
5-30 parts of polyimide;
5-30 parts of polyetherimide;
30-70 parts of siloxane-containing polyetherimide;
5-30 parts of polar resin containing ether bonds;
5-30 parts of a liquid crystal polymer;
5-30 parts of non-polar crystalline resin;
5-30 parts of silicone resin;
5-20 parts of talcum powder;
0.2-1 part of processing aid;
0.1-1 part of antioxidant;
0.1-10 parts of additive.
Further, the polyimide has a Heat Distortion Temperature (HDT) of 250 ℃ or higher and a intrinsic viscosity of 0.6cps or lower. Preferably, the polyimide may be selected from one or more of Aurum from Mitsui chemical company of japan, Vespel from DuPont, shanghai synthetic resin, medcina ningbo, vingagchen polyimide materials ltd, and polyimide from the hangzhou plastic union.
Further, the polyetherimide has a heat distortion temperature of 200 ℃ or higher and a Melt Flow Rate (MFR) of 7g/10min or more under conditions of 337 ℃ and 6.6 kgf. Preferably, the polyetherimide is selected from one or more of Ultem1000, 1010 from SABIC and Torlon4000TF, 4000T, 4200, 4203 and 4203L from SOLVAY.
Furthermore, the siloxane weight content of the siloxane-containing polyetherimide is more than or equal to 20 percent, and the melt flow rate under the conditions of 295 ℃ and 6.6kgf is more than or equal to 7g/10 min. Preferably, the silicone-containing polyetherimide is selected from one or more of STM1500, 1600 and 1700 from SABIC corporation.
Further, the ether bond-containing polar resin is one or more of polyphenyl ether, polyphenylene sulfide, polyether sulfone, polyether ether ketone and a copolymer thereof, polyether ketone and a copolymer thereof, polyarylsulfone, polyaryl ether ketone and polyformaldehyde.
Further, the Liquid Crystal Polymer (LCP) is a main chain type liquid crystal polymer including one or more of polyimide type, polycarbonate type, polyether type and polyester type liquid crystal polymer. Preferably, the main chain type liquid crystal polymer is a polyimide type and/or polyester type liquid crystal polymer. Further preferably, the liquid crystal polyester resin is a wholly aromatic polyimide type and/or polyester type liquid crystal polymer.
Further, the non-polar crystalline resin is one or more of Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), Medium Density Polyethylene (MDPE), High Density Polyethylene (HDPE), polypropylene (PP), Ultra High Molecular Weight Polyethylene (UHMWPE), ethylene-propylene copolymer, ethylene-propylene-butadiene copolymer, propylene-ethylene-1-butene multipolymer and ethylene-octene copolymer.
Further, the silicone resin is one or more of polymethyl silicone resin, polymethyl phenyl silicone resin, polyethyl phenyl silicone resin, polymethyl silsesquioxane, polyphenyl silsesquioxane, polyamino silicone resin, polyfluoro silicone resin, silicone polyester resin, silicone epoxy resin, methyl phenyl MQ silicone resin and phenyl MQ silicone resin. Preferably, the silicone resin is one or more of polymethylphenyl silicone resin, polyethylphenyl silicone resin, polyphenyl silsesquioxane, methyl phenyl MQ silicone resin and phenyl MQ silicone resin.
Furthermore, the talcum powder is superfine talcum powder, and the granularity of the talcum powder is 1000-10000 meshes. Preferably, the talcum powder is 3000-10000-mesh ultrafine talcum powder. Further preferably, the talcum powder is 10000-mesh superfine talcum powder.
Further, the processing aid is pentaerythritol stearate, erucamide or oleamide.
Further, the antioxidant is one or more of pentaerythritol tetrakis [ β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], tris [2, 4-di-tert-butylphenyl ] phosphite, N-octadecyl β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate, N '-bis- (3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionyl) hexanediamine, and tetrakis- (2, 4-di-tert-butylphenyl) -4, 4' -biphenylbis-phosphite.
Further, the additives include one or more of titanium dioxide, zinc sulfide, zinc oxide, copper ion complexing agents, ultraviolet light stabilizers, heat stabilizers, acid scavengers, nucleating agents, transesterification inhibitors, flame retardants, toner, and conductive additives.
Further, the preparation method of the thermoplastic polyimide cable material for nuclear power aviation comprises the following steps:
according to the formula of the thermoplastic polyimide cable material for nuclear power aviation, the components are mixed uniformly, and the mixed material is extruded and granulated in a double-screw extruder, wherein the melt extrusion temperature is 300-380 ℃, and the screw rotation speed is 150-350rpm/min, so that the thermoplastic polyimide cable material particles for nuclear power aviation are obtained.
By the scheme, the invention at least has the following advantages:
the present invention provides a base mixed resin having excellent comprehensive properties by using different types of polyimide base resins in a mixed manner and utilizing the advantages of the polyimide base resins in plastic processability, heat resistance and flexibility. And the ether bond-containing polar resin and the non-polar crystalline resin are used, and the synergistic modification effect of the two polymer resins obviously improves the melt viscosity of the polyimide composite material, improves the thermoplasticity processing performance, and does not influence the comprehensive performance of the polyimide composite material. The liquid crystal polymer in the cable material is in a liquid crystal state in a molten state, and no winding phenomenon exists among molecules, so that the melt viscosity of the polyetherimide is effectively reduced, the fluidity of the polyetherimide is improved, and in addition, the high temperature resistance of the polyimide resin can be effectively maintained due to the good high temperature resistance of the liquid crystal polymer. Finally, the cable material for nuclear power aviation, which is plastically processed, heat-resistant, radiation-resistant and excellent in comprehensive mechanical properties, is realized by using a plurality of modification means together, so that the application field of the polyimide modified resin is expanded.
The foregoing is a summary of the present invention, and in order to provide a clear understanding of the technical means of the present invention and to be implemented in accordance with the present specification, the following is a preferred embodiment of the present invention and is described in detail below.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
s1, weighing 10 parts of polyimide (produced by Shanghai resin, the trade name is Ys-20: special products of Hangzhou plastic union, the trade name is SS 100P: 1), 14 parts of polyetherimide (Ultem1010), 50 parts of siloxane-containing polyetherimide (STM1700), 5 parts of polyethersulfone, 5 parts of wholly aromatic polyimide type liquid crystal polymer, 5 parts of polypropylene, 5 parts of polymethylphenyl silicone resin, 5 parts of talcum powder, 0.2 part of PETS, 0.3 part of 1010 inhibitor and 0.5 part of ultraviolet stabilizer, and uniformly mixing to obtain a mixture.
And S2, adding the mixture into a main feed of a double-screw extruder, leading out from an outlet of a die head after melt extrusion, and granulating after water cooling to obtain the thermoplastic polyimide cable material particles for nuclear power aviation. Wherein the melt extrusion temperature of the double-screw extruder is 300-380 ℃, and the screw rotating speed is 350 rpm/min.
And (3) preparing the prepared cable material particles into sample bars for performance test:
the particle material is placed into a charging barrel of an injection molding machine, the temperature of the charging barrel reaches about 350-.
Example 2:
s1, weighing 5 parts of polyimide (HI-P, manufactured by Changchun Mingchen polyimide materials Co., Ltd.), 30 parts of polyetherimide (Torlon4000 TF: 4203L ═ 2:1), 30 parts of siloxane-containing polyetherimide (STM1600), 5 parts of polyether ketone, 5 parts of wholly aromatic polyester type liquid crystal polymer, 25 parts of LLDPE (linear low density polyethylene), 5 parts of ethylene-propylene copolymer, 5 parts of polyphenyl silsesquioxane, 5 parts of talcum powder, 0.2 part of erucamide, 0.2 part of anti-1076, 0.6 part of anti-168 and 10 parts of flame retardant, and uniformly mixing to obtain a mixture.
And S2, adding the mixture into a main feed of a double-screw extruder, leading out from an outlet of a die head after melt extrusion, and granulating after water cooling to obtain the thermoplastic polyimide cable material particles for nuclear power aviation. Wherein the melt extrusion temperature of the double-screw extruder is 300-380 ℃, and the screw rotating speed is 250 rpm/min.
Test specimens were prepared and tested for properties according to the method of example 1.
Example 3:
s1, weighing 30 parts of polyimide (Aurum PL450C of Mitsui company), 5 parts of polyetherimide (ULtem1010), 30 parts of siloxane-containing polyetherimide (STM1500: 1700: 5:1), 20 parts of polyether-ether-ketone copolymer, 10 parts of polyether ketone, 5 parts of wholly aromatic polyester type liquid crystal polymer, 5 parts of low-density polyethylene, 5 parts of phenyl MQ silicon resin, 11 parts of talcum powder, 0.4 part of oleamide, 0.4 part of anti-1010, 0.2 part of anti-P-EPQ, 4 parts of nucleating agent and 1 part of carbon black according to parts by weight, and uniformly mixing to obtain a mixture.
And S2, adding the mixture into a main feed of a double-screw extruder, leading out from an outlet of a die head after melt extrusion, and granulating after water cooling to obtain the thermoplastic polyimide cable material particles for nuclear power aviation. Wherein the melt extrusion temperature of the double-screw extruder is 300-380 ℃, and the screw rotating speed is 150 rpm/min.
Test specimens were prepared and tested for properties according to the method of example 1.
Example 4:
s1, weighing 5 parts of polyimide (special product of Hangzhou plastic union, brand SS100P), 30 parts of polyetherimide (ULtem1010), 30 parts of siloxane-containing polyetherimide (STM1500), 5 parts of polyphenylene sulfide, 18 parts of wholly aromatic polyimide type liquid crystal polymer, 12 parts of wholly aromatic polyester type liquid crystal polymer, 5 parts of high-density polyethylene, 5 parts of polymethylphenyl silicone resin, 5 parts of talcum powder, 0.4 part of erucamide, 0.4 part of anti-1098, 0.2 part of anti-P-EPQ, 0.2 part of zinc sulfide, 0.4 part of copper ion complexing agent and 0.4 part of ultraviolet light stabilizer, and uniformly mixing to obtain a mixture.
And S2, adding the mixture into a main feed of a double-screw extruder, leading out from an outlet of a die head after melt extrusion, and granulating after water cooling to obtain the thermoplastic polyimide cable material particles for nuclear power aviation. Wherein the melt extrusion temperature of the double-screw extruder is 300-380 ℃, and the screw rotating speed is 300 rpm/min.
Test specimens were prepared and tested for properties according to the method of example 1.
Example 5:
s1, weighing 30 parts of polyimide (Aurum PL450C of Mitsui corporation), 5 parts of polyetherimide (Torlon4200), 30 parts of siloxane-containing polyetherimide (STM1500), 5 parts of polyphenylene sulfide, 5 parts of wholly aromatic polyimide type liquid crystal polymer, 5 parts of medium density polyethylene, 20 parts of polyethylphenyl silicone resin, 10 parts of phenyl MQ silicone resin, 5 parts of talcum powder, 0.4 part of PETS, 0.4 part of resist 1010, 0.2 part of resist P-EPQ, 0.4 part of copper ion complexing agent and 0.6 part of carbon black according to parts by weight, and uniformly mixing to obtain a mixture.
And S2, adding the mixture into a main feed of a double-screw extruder, leading out from an outlet of a die head after melt extrusion, and granulating after water cooling to obtain the thermoplastic polyimide cable material particles for nuclear power aviation. Wherein the melt extrusion temperature of the double-screw extruder is 300-380 ℃, and the screw rotating speed is 150 rpm/min.
Test specimens were prepared and tested for properties according to the method of example 1.
Example 6:
s1, weighing 5 parts of polyimide (produced by Shanghai resin and having the brand number of Ys-20), 5 parts of polyetherimide (Ultem1000), 70 parts of siloxane-containing polyetherimide (STM1600), 5 parts of polyarylsulfone, 5 parts of wholly aromatic polyester type liquid crystal polymer, 5 parts of ethylene-octene copolymer, 5 parts of methyl phenyl MQ silicon resin, 20 parts of talcum powder, 0.4 part of oleamide, 0.4 part of anti-1010, 0.2 part of anti-168, 0.8 part of acid scavenger and 0.2 part of toner in parts by weight, and uniformly mixing to obtain a mixture.
And S2, adding the mixture into a main feed of a double-screw extruder, adding 10 parts of glass fiber into a side feed of the double-screw extruder, leading out from an outlet of a die head after melt extrusion, and granulating after water cooling to obtain the thermoplastic polyimide cable material particles for nuclear power aviation. Wherein the melt extrusion temperature of the double-screw extruder is 300-380 ℃, and the screw rotating speed is 280 rpm/min.
Test specimens were prepared and tested for properties according to the method of example 1.
Comparative example 1
80 parts of siloxane-containing polyetherimide (STM1600), 5 parts of polyarylsulfone, 5 parts of wholly aromatic polyester liquid crystal polymer, 5 parts of ethylene-octene copolymer, 5 parts of methyl phenyl MQ silicon resin, 20 parts of talcum powder, 0.4 part of oleamide, 0.4 part of anti-1010, 0.2 part of anti-168, 0.8 part of acid scavenger and 0.2 part of toner are weighed according to parts by weight and mixed uniformly to obtain a mixture. The mixture was pelletized by extrusion, and test specimens were prepared and tested for properties.
Comparative example 2
A thermoplastic polyimide cable material for nuclear power aviation is prepared by weighing 5 parts by weight of polyimide (Ys-20 produced by Shanghai resin), 5 parts by weight of polyetherimide (Ultem1000), 70 parts by weight of siloxane-containing polyetherimide (STM1600), 0.4 part by weight of oleamide, 0.4 part by weight of anti-1010, 0.2 part by weight of anti-168, 0.8 part by weight of acid scavenger and 0.2 part by weight of toner, and uniformly mixing to obtain a mixture. The mixture was pelletized by extrusion, and test specimens were prepared and tested for properties.
The results of the spline testing for the above examples and comparative examples are shown in table 1:
TABLE 1 results of the Performance testing of different sample bars
As can be seen from the table above, after the materials in the embodiment of the invention are subjected to injection molding, the performance of the sample strip is excellent, and the due level of the materials is reflected, so that the polyimide composite cable material prepared by the invention is suitable for a thermoplastic molding process. And the high yield of the injection molding process well reflects that the density and the texture of the finished piece are uniform and the surface is smooth after the injection molding. Example 6 in comparison with comparative example 1, it can be seen that in comparative example 1, polyimide and polyetherimide having high temperature resistance levels were not used, and the material had low heat distortion temperature, poor heat resistance, low tensile strength, and high molding shrinkage. Compared with the comparative example 2, the comparative example 2 does not use several processing property improving materials of ether bond containing polar resin, liquid crystal polymer, non-polar crystalline resin and talcum powder, the material has poor melt flowability, the yield is very low, and the material has obvious reduction of impact strength, tensile strength and elongation at break and shows obvious characteristics of poor plasticization. The polyimide-based composite cable material prepared by the embodiment of the invention has the advantages of high strength, good heat resistance, easy processing, high yield and the like, has low water absorption rate, and is suitable for maintaining excellent mechanical properties under extreme harsh conditions such as water environment, high bearing capacity and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The thermoplastic polyimide cable material for nuclear power aviation is characterized by comprising the following components in parts by weight:
5-30 parts of polyimide;
5-30 parts of polyetherimide;
30-70 parts of siloxane-containing polyetherimide;
5-30 parts of polar resin containing ether bonds;
5-30 parts of a liquid crystal polymer;
5-30 parts of non-polar crystalline resin;
5-30 parts of silicone resin;
5-20 parts of talcum powder;
0.2-1 part of processing aid;
0.1-1 part of antioxidant;
0.1-10 parts of additive.
2. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the polyimide has a heat distortion temperature of 250 ℃ or higher and a characteristic viscosity of 0.6cps or lower.
3. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the thermal deformation temperature of the polyetherimide is more than 200 ℃, and the melt flow rate under the conditions of 337 ℃ and 6.6kgf is more than or equal to 7g/10 min.
4. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the siloxane weight content of the siloxane-containing polyetherimide is more than or equal to 20 percent, and the melt flow rate under the conditions of 295 ℃ and 6.6kgf is more than or equal to 7g/10 min.
5. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the ether bond-containing polar resin is one or more of polyphenyl ether, polyphenylene sulfide, polyether sulfone, polyether ether ketone and a copolymer thereof, polyether ketone and a copolymer thereof, polyarylsulfone, polyaryletherketone and polyformaldehyde.
6. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the liquid crystal polymer is a main chain type liquid crystal polymer, and the main chain type liquid crystal polymer comprises one or more of polyimide type, polycarbonate type, polyether type and polyester type liquid crystal polymer.
7. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the nonpolar crystalline resin is one or more of low-density polyethylene, linear low-density polyethylene, medium-density polyethylene, high-density polyethylene, polypropylene, ultrahigh molecular weight polyethylene, ethylene-propylene copolymer, ethylene-propylene-butadiene copolymer, propylene-ethylene-1-butene multipolymer and ethylene-octene copolymer.
8. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the silicone resin is one or more of polymethyl silicone resin, polymethyl phenyl silicone resin, polyethyl phenyl silicone resin, polymethyl silsesquioxane, polyphenyl silsesquioxane, polyamino silicone resin, polyfluoro silicone resin, organic silicon polyester resin, organic silicon epoxy resin, methyl phenyl MQ silicone resin and phenyl MQ silicone resin.
9. The thermoplastic polyimide cable material for nuclear power aviation according to claim 1, characterized in that: the processing aid is pentaerythritol stearate, erucamide or oleamide; the additives include one or more of titanium dioxide, zinc sulfide, zinc oxide, copper ion complexing agents, ultraviolet light stabilizers, heat stabilizers, acid scavengers, nucleating agents, transesterification inhibitors, flame retardants, toner, and conductive additives.
10. The thermoplastic polyimide cable material for nuclear power aviation according to any one of claims 1 to 9, wherein the preparation method comprises the following steps:
according to the formula of the thermoplastic polyimide cable material for nuclear power aviation as claimed in any one of claims 1 to 9, the components are mixed uniformly, and the mixed material is extruded and granulated in a double-screw extruder, wherein the melt extrusion temperature is 300-.
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| CN112251022A (en) * | 2020-08-21 | 2021-01-22 | 湖南国柔科技有限公司 | High-order repeated bending CPI film and preparation method thereof |
| WO2022186309A1 (en) * | 2021-03-05 | 2022-09-09 | 大倉工業株式会社 | Liquid crystal polyester resin composition, liquid crystal polyester film using said composition, metal laminated film using said film, and circuit board |
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| CN112251022A (en) * | 2020-08-21 | 2021-01-22 | 湖南国柔科技有限公司 | High-order repeated bending CPI film and preparation method thereof |
| WO2022186309A1 (en) * | 2021-03-05 | 2022-09-09 | 大倉工業株式会社 | Liquid crystal polyester resin composition, liquid crystal polyester film using said composition, metal laminated film using said film, and circuit board |
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