CN105175889A - High-strength conductive PP/PA composite material and preparation method thereof - Google Patents
High-strength conductive PP/PA composite material and preparation method thereof Download PDFInfo
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- CN105175889A CN105175889A CN201510546575.8A CN201510546575A CN105175889A CN 105175889 A CN105175889 A CN 105175889A CN 201510546575 A CN201510546575 A CN 201510546575A CN 105175889 A CN105175889 A CN 105175889A
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08K2201/001—Conductive additives
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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
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
The invention relates to the technical field of polymer composite materials, specifically to a high-strength conductive PP/PA composite material and a preparation method thereof. The high-strength conductive PP/PA composite material comprises the following raw materials by mass: 30 to 80 parts of PP resin, 5 to 40 parts of PA resin, 2 to 20 parts of conductive carbon fiber and 0.1 to 15 parts of conductive particles. The high-strength conductive PP/PA composite material prepared by using the method in the invention has the advantages of low cost, low wear, high toughness, high whiteness, heat conduction, insulation, no halogen and flame retardancy; and the preparation method is simple and mature and is favorable for popularization and application. According to the invention, the conductive carbon fiber and the conductive particles are added, so excellent conductivity and antistatic effect are obtained; meanwhile, high-strength hardness, long service life, simple and convenient process and low cost are also obtained.
Description
Technical field
The present invention relates to technical field of polymer composite materials, be specifically related to a kind of high-strength conductive PP/PA matrix material and preparation method thereof.
Background technology
Polypropylene (PP) is that a kind of proportion is low, corrosion-resistant, widely used polymkeric substance, as non-polar polymeric material, have very high insulativity, volume specific resistance can reach 1016-1020 Ω cm, but often also easily produces electrostatic, attract dust, have impact on the application in fields such as electronic apparatus, hazardous substance storages.Low-resistance PP not only has outstanding antistatic effect, and can be used in the field such as electromagnetic shielding, semi-conductor.Nylon (PA) can improve the intensity of PP, erosion resistance, wear resistance, surface polarity and antistatic property further, but the resistivity of PP/PA matrix material is still very large, and intensity neither be very desirable.
Reducing the conventional method of PP resistivity is add static inhibitor, reaches antistatic effect by precipitateing into surface, but resistance to reduce degree little, and easily loss, timeliness are short.By the reduction resistivity of material that filling effect conducting particles or electro-conductive fiber in resin can be very large.Wherein, carbon fiber is as strongthener of new generation, and have quality light, the features such as intensity is high, corrosion-resistant, have excellent conductivity simultaneously, receives increasing concern and application in conduction and antistatic field.
Summary of the invention
The object of the invention is for above-mentioned deficiency of the prior art, provide a kind of high-strength conductive PP/PA matrix material and preparation method thereof, matrix material has good antistatic property and ultimate compression strength, and conductivity is good, applied range.
Object of the present invention is achieved through the following technical solutions:
A kind of high-strength conductive PP/PA matrix material, comprises the raw material of following parts by weight:
PP resin 30-80 part
PA resin 5-40 part
Conductive carbon fibre 2-20 part
Conducting particles 0.1-15 part.
Described PA can strengthen the intensity of PP, erosion resistance, wear resistance, surface polarity and antistatic property, in addition, PA has stronger polarity, effectively can infiltrate conducting particles, as disperse phase in PP matrix, can connect the carbon fiber of dispersion, collaborative establishment strengthens conductive network, increases substantially mechanical property and the conductivity of this matrix material.
Preferably, described high-strength conductive PP/PA matrix material also includes the compatilizer that parts by weight are 0.5-6 part, the mixture of described compatilizer to be maleic anhydride inoculated polypropylene and silane coupling agent with weight ratio be 10:1 ~ 50:1.Maleic anhydride inoculated polypropylene can become the cementability of polypropylene and polymeric amide and the bridge of consistency, preferably, silane coupling agent is aminosilane KH550, the effect group of aminosilane KH550 and maleic groups form powerful higher chemical bond in this matrix material, greatly improve the interface compatibility of PA/PP, PP/ conductive metal powder in matrix material, PP/ carbon fiber, improve conductive and mechanical properties.Preferably, parts by weight ratio is 40:1.
Preferably, described high-strength conductive PP/PA matrix material also includes other auxiliary agents that parts by weight are 0.1-1 part, and other auxiliary agent described is that oxidation inhibitor and lubricant are with the mixture of weight ratio 1:2.Wherein, oxidation inhibitor is preferably the mixture that BASF IRGANOX1010 and IRGANOX168 take weight ratio as 1:1, and lubricant is preferably the mixture that ethylene bis stearamide and silicone powder take weight ratio as 2:1.
Preferably, described conducting particles is one or both the mixture in conductive graphene and conductive metal powder, conductive graphene has the characteristics such as high conductivity, high strength, ultra-thin, the better conductivity of matrix material and mechanical property can be given, but conductive graphene cost is relatively high, so use cost is relatively low, conductivity is excellent conductive metal powder Some substitute can be carried out.These two kinds of conducting particless compare graphitized carbon black general on market, have more excellent conductive and mechanical properties.Described conductive metal powder comprises conductance powdered iron, conductive copper powder, iron nickel coated graphite, iron nickel coated fiber etc.More preferably, the mixture of described conducting particles to be conductive graphene and iron nickel coated graphite with weight ratio be 1:4.
Preferably, described conductive carbon fibre is chopped strand, chopped strand diameter is 5-10 μm, tensile strength is greater than 3000MPa, and volume specific resistance is lower than 3 × 10-3 Ω cm, and chopped carbon fiber has good dispersive ability in the base, easier coordination by PP, PA material sets up formation conductive network, conductivity is enhanced, and in addition, intensive network structure effectively can improve intensity and the tough of material.
Preferably, the melting index (230 DEG C, 2.16Kg) of described PP resin is 0.5-30g/10min.
Preferably, the fusing point of described PA resin is 170 DEG C-230 DEG C, and number-average molecular weight Mn size is 15000-40000.
A preparation method for high-strength conductive PP/PA matrix material, comprises following procedure of processing:
1) use twin screw extruder to carry out melt blending and extruding pelletization according to the above ratio PA resin and conducting particles, obtain premixture;
2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, wherein conductive carbon fibre adds from extruding pusher side spout;
Wherein twin screw extruder one district temperature is 140-180 DEG C, two district's temperature are 150-190 DEG C, three district's temperature are 160-210 DEG C, four district's temperature are 170-230 DEG C, five district's temperature are 180-240 DEG C, six district's temperature are 180-240 DEG C, seven district's temperature are 180-240 DEG C, eight district's temperature are 170-230 DEG C; Screw speed is 300-500rpm.
Preferably, described step 2) in also include other auxiliary agent of compatilizer that parts by weight are 0.5-6 part and 0.1-1 part.
beneficial effect of the present invention:
1. the present invention has prepared high-strength conductive PP/PA matrix material by two-step approach, makes material not only have the good mechanical property of PA and conductivity but also has the erosion resistance of PP, wear resistance and antistatic property concurrently;
2. PA resin in the present invention, there is between conducting particles and carbon fiber good synergy, improve material mechanical performance and conductivity;
3. the tensile strength of matrix material that prepared by the present invention is 37.8-57.5MPa, and flexural strength is 58.6-76.7MPa, and modulus in flexure is 2910-4764MPa, and Izod notched impact strength is 36.8-87.4J/m, and volume specific resistance is 5.2 × 10
8-6.2 × 10
2Ω cm, surface resistivity is 1.2 × 10
8-5.6 × 10
2Ω, high-strength conductive PP/PA matrix material prepared by the present invention can be able to be used widely in conduction, electromagnetic shielding, the field such as antistatic.
Embodiment
The invention will be further described with the following Examples.
embodiment 1
The high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin: 80.5 parts
PA resin 10 parts
Conductive carbon fibre 5 parts
Conducting particles 2 parts
Compatilizer 2 parts
Other auxiliary agent 0.5 part
Wherein, described PP resin is the homopolymerization PP T30S that China Petrochemical Industry produces, and described PA resin is the PA6 purchased from Ba Ling petrochemical industry, and described conducting particles is conductive graphene, and described compatilizer is the mixture of PP-g-MAH/KH55020:1.
The preparation method of this embodiment, concrete operation step is: 1) PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization in proportion, obtain premixture; 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 185 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 220 DEG C, six district's temperature 210 DEG C, seven district's temperature 210 DEG C, eight district's temperature 210 DEG C; Screw speed 400rpm.
Material prepared by embodiment 1 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 2
The high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 79.5 parts
PA resin 5 parts
Conductive carbon fibre 8 parts
Conducting particles 2 parts
Compatilizer 5 parts
Other auxiliary agent 0.5 part
Wherein, described PP resin is the homopolymerization PP T30S that China Petrochemical Industry produces, and described PA resin is the PA6 purchased from Ba Ling petrochemical industry, and described conducting particles is conductive graphene, and described compatilizer is the mixture of PP-g-MAH/KH55020:1.
The preparation method of this embodiment, concrete operation step is: 1) PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization in proportion, obtain premixture; 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 184 DEG C, three district's temperature 198 DEG C, four district's temperature 205 DEG C, five district's temperature 220 DEG C, six district's temperature 212 DEG C, seven district's temperature 212 DEG C, eight district's temperature 208 DEG C; Screw speed 385rpm.
Material prepared by embodiment 2 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 3
The high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 65.5 parts
PA resin 18 parts
Conductive carbon fibre 5 parts
Conducting particles 8 parts
Compatilizer 3 parts
Other auxiliary agent 0.5 part
Wherein, described conducting particles is the mixture of conductive graphene and conductive metal powder 1:4.
The preparation method of this embodiment, concrete operation step is: 1) PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization in proportion, obtain premixture; 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 180 DEG C, three district's temperature 190 DEG C, four district's temperature 200 DEG C, five district's temperature 215 DEG C, six district's temperature 212 DEG C, seven district's temperature 212 DEG C, eight district's temperature 205 DEG C; Screw speed 400rpm.
Material prepared by embodiment 3 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 4
The high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 48.5 parts
PA resin 30 parts
Conductive carbon fibre 12 parts
Conducting particles 5 parts
Compatilizer 4 parts
Other auxiliary agent 0.5 part
Wherein, described PA resin is the PA612 of available from DuPont, described conducting particles is the mixture of conductive graphene and conductive metal powder 1:3, described compatilizer is the mixture of PP-g-MAH/KH55040:1, the preparation method of this embodiment, concrete operation step is: 1) PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization in proportion, obtain premixture; 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 165 DEG C, two district's temperature 175 DEG C, three district's temperature 185 DEG C, four district's temperature 195 DEG C, five district's temperature 210 DEG C, six district's temperature 212 DEG C, seven district's temperature 212 DEG C, eight district's temperature 202 DEG C; Screw speed 390rpm.
Material prepared by embodiment 4 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 5
The high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 54.5 parts
PA resin 20 parts
Conductive carbon fibre 8 parts
Conducting particles 12 parts
Compatilizer 5 parts
Other auxiliary agent 0.5 part
Wherein, described PA resin is the PA612 of available from DuPont, described conducting particles is the mixture of conductive graphene and conductive metal powder 1:10, described compatilizer is the mixture of PP-g-MAH/KH55030:1, the preparation method of this embodiment, concrete operation step is: 1) PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization in proportion, obtain premixture; 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 180 DEG C, three district's temperature 180 DEG C, four district's temperature 190 DEG C, five district's temperature 210 DEG C, six district's temperature 212 DEG C, seven district's temperature 212 DEG C, eight district's temperature 210 DEG C; Screw speed 430rpm.
Material prepared by embodiment 5 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 6
The high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 51.5 parts
PA resin 19 parts
Conductive carbon fibre 10 parts
Conducting particles 14 parts
Compatilizer 5 parts
Other auxiliary agent 0.5 part
Wherein, described PA resin is the PA612 of available from DuPont, described conducting particles is the mixture of conductive graphene and conductive metal powder 1:10, described compatilizer is the mixture of PP-g-MAH/KH55030:1, the preparation method of this embodiment, concrete operation step is: 1) PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization in proportion, obtain premixture; 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 180 DEG C, two district's temperature 182 DEG C, three district's temperature 190 DEG C, four district's temperature 200 DEG C, five district's temperature 210 DEG C, six district's temperature 210 DEG C, seven district's temperature 200 DEG C, eight district's temperature 205 DEG C; Screw speed 380rpm.
Material prepared by embodiment 6 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 7
A kind of high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 32 parts
PA resin 40 parts
Conductive carbon fibre 15 parts
Conducting particles 10 parts
Compatilizer 3 parts
A preparation method for high-strength conductive PP/PA matrix material, comprises following procedure of processing:
PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization by step 1) according to the above ratio, obtain premixture;
Step 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibres peacekeeping compatilizer, wherein conductive carbon fibre adds from extruding pusher side spout;
Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 185 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 220 DEG C, six district's temperature 210 DEG C, seven district's temperature 210 DEG C, eight district's temperature 210 DEG C; Screw speed 400rpm.
Material prepared by embodiment 7 adopts ASTM standard to test, and concrete test result is listed in table 1.
embodiment 8
A kind of high-strength conductive PP/PA matrix material of the present embodiment, comprises the raw material of following parts by weight:
PP resin 35 parts
PA resin 30 parts
Conductive carbon fibre 20 parts
Conducting particles 12 parts
Compatilizer 3 parts
The preparation method of the high-strength conductive PP/PA matrix material of the present embodiment, is with the difference of embodiment 7: twin screw extruder one district temperature 170 DEG C, two district's temperature 190 DEG C, three district's temperature 210 DEG C, four district's temperature 220 DEG C, five district's temperature 230 DEG C, six district's temperature 220 DEG C, seven district's temperature 220 DEG C, eight district's temperature 220 DEG C; Screw speed 450rpm.
Material prepared by embodiment 8 adopts ASTM standard to test, and concrete test result is listed in table 1.
comparative example 1:
The concrete formula of the matrix material of this comparative example is as follows:
PP resin 79.5 parts
PA resin 15 parts
Compatilizer 5 parts
Other auxiliary agent 0.5 part
The preparation method of this comparative example, concrete operation step is: use twin screw extruder to carry out melt blending and extruding pelletization in proportion PA resin, PP resin, compatilizer and other auxiliary agent.Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 185 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 220 DEG C, six district's temperature 210 DEG C, seven district's temperature 210 DEG C, eight district's temperature 210 DEG C; Screw speed 400rpm.
Material prepared by comparative example 1 adopts ASTM standard to test, and concrete test result is listed in table 1.
comparative example 2:
The concrete formula of the matrix material of this comparative example is as follows:
PP resin 90.5 parts
Conductive carbon fibre 6 parts
Compatilizer 3 parts
Other auxiliary agent 0.5 part
The preparation method of this comparative example, concrete operation step is: use twin screw extruder to carry out melt blending and extruding pelletization in proportion PP resin, conductive carbon fibre, compatilizer and other auxiliary agent, and wherein conductive carbon fibre adds from extruding pusher side spout.Wherein twin screw extruder one district temperature 170 DEG C, two district's temperature 185 DEG C, three district's temperature 200 DEG C, four district's temperature 210 DEG C, five district's temperature 220 DEG C, six district's temperature 210 DEG C, seven district's temperature 210 DEG C, eight district's temperature 210 DEG C; Screw speed 400rpm.
Material prepared by comparative example 2 adopts ASTM standard to test, and concrete test result is listed in table 1.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. a high-strength conductive PP/PA matrix material, is characterized in that: the raw material comprising following parts by weight:
PP resin 30-80 part
PA resin 5-40 part
Conductive carbon fibre 2-20 part
Conducting particles 0.1-15 part.
2. a kind of high-strength conductive PP/PA matrix material according to claim 1, is characterized in that: the compatilizer also including 0.5-6 part, the mixture of described compatilizer to be maleic anhydride inoculated polypropylene and silane coupling agent with weight ratio be 10:1 ~ 50:1.
3. a kind of high-strength conductive PP/PA matrix material according to claim 2, is characterized in that: other auxiliary agent also including 0.1-1 part, and other auxiliary agent described is that oxidation inhibitor and lubricant are with the mixture of weight ratio 1:2.
4. a kind of high-strength conductive PP/PA matrix material according to claim 1, is characterized in that: described conducting particles is one or both the mixture in conductive graphene and conductive metal powder.
5. a kind of high-strength conductive PP/PA matrix material according to claim 4, is characterized in that: the mixture of described conducting particles to be conductive graphene and iron nickel coated graphite with weight ratio be 1:4.
6. a kind of high-strength conductive PP/PA matrix material according to claim 1, it is characterized in that: described conductive carbon fibre is chopped strand, and chopped strand diameter is 5-10 μm, and tensile strength is greater than 3000MPa, volume specific resistance is lower than 3 × 10-3 Ω cm.
7. a kind of high-strength conductive PP/PA matrix material according to claim 1, is characterized in that: the melting index of described PP resin is 0.5-30g/10min.
8. a kind of high-strength conductive PP/PA matrix material according to claim 1, is characterized in that: the fusing point of described PA resin is 170 DEG C-230 DEG C, and number-average molecular weight Mn size is 15000-40000.
9., as the preparation method of a kind of high-strength conductive PP/PA matrix material in claim 1,4-8 as described in any one, it is characterized in that: comprise following procedure of processing:
PA resin and conducting particles use twin screw extruder to carry out melt blending and extruding pelletization by step 1) according to the above ratio, obtain premixture;
Step 2) use twin screw extruder to carry out melt blending and extruding pelletization in proportion premixture and PP resin, conductive carbon fibre, wherein conductive carbon fibre adds from extruding pusher side spout;
Wherein twin screw extruder one district temperature is 140-180 DEG C, two district's temperature are 150-190 DEG C, three district's temperature are 160-210 DEG C, four district's temperature are 170-230 DEG C, five district's temperature are 180-240 DEG C, six district's temperature are 180-240 DEG C, seven district's temperature are 180-240 DEG C, eight district's temperature are 170-230 DEG C; Screw speed is 300-500rpm.
10. the preparation method of a kind of high-strength conductive PP/PA matrix material according to claim 9, is characterized in that: described step 2) in also include other auxiliary agent of compatilizer that parts by weight are 0.5-6 part and 0.1-1 part.
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Cited By (8)
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| CN105733116A (en) * | 2016-05-09 | 2016-07-06 | 安徽江淮汽车股份有限公司 | Wear-resistant high-electroconductivity PE-PS (polyethylene-polystyrene) alloy and preparation method thereof |
| CN105924794A (en) * | 2016-07-11 | 2016-09-07 | 淄博精诚专利信息咨询有限公司 | Antistatic material and preparation method thereof |
| CN106220995A (en) * | 2016-07-26 | 2016-12-14 | 东莞市晶谷新材料技术有限公司 | A kind of efficient anti-static composite and preparation method thereof |
| CN107216545A (en) * | 2017-05-24 | 2017-09-29 | 广东圆融新材料有限公司 | A kind of dynamic crosslinking PP/PE intermingling materials for characteristic of turning white with low-density high-impact proof stress and preparation method thereof |
| CN107245190A (en) * | 2017-06-21 | 2017-10-13 | 安徽江淮汽车集团股份有限公司 | A kind of wear-resisting PP PA66 composites of antibacterial and preparation method thereof |
| CN111138747A (en) * | 2019-12-17 | 2020-05-12 | 江苏东方电缆材料有限公司 | EVA semiconductive cable shielding material and preparation method thereof |
| CN112358686A (en) * | 2020-11-13 | 2021-02-12 | 福建和盛塑业有限公司 | MPP special material containing three-dimensional network structure heat conduction material and preparation method of power cable sheath tube thereof |
| CN113149683A (en) * | 2021-04-29 | 2021-07-23 | 上海骐杰碳素材料有限公司 | Carbon or carbon ceramic composite material short fiber preform, product and preparation method thereof |
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