CN104558848B - Halloysite nanotube-enhanced conducting polypropylene material and preparation method thereof - Google Patents
Halloysite nanotube-enhanced conducting polypropylene material and preparation method thereof Download PDFInfo
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- CN104558848B CN104558848B CN201510024356.3A CN201510024356A CN104558848B CN 104558848 B CN104558848 B CN 104558848B CN 201510024356 A CN201510024356 A CN 201510024356A CN 104558848 B CN104558848 B CN 104558848B
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- 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
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- 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
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Abstract
The invention relates to the technical field of a high molecular material, and in particular relates to a halloysite nanotube-enhanced conducting polypropylene material and a preparation method thereof. The conducting polypropylene material consists of the following raw materials in parts by weight: 30-80 parts of propene polymer (PP) resin, 5-15 parts of a polar elastomer, 5-15 parts of a flexibilizer, 1-40 parts of a halloysite nanotube, 4-15 parts of conductive carbon black, 0-1 part of nucleating agent and 0-2 parts of other auxiliaries. The conducting polypropylene material disclosed by the invention, with the low addition of the conductive carbon black, is excellent in conductivity and antistatic effect; and meanwhile, the conducting polypropylene material is relatively good in strength and toughness, long in service life, simple in production process and low in production cost.
Description
Technical field
The present invention relates to technical field of polymer materials, and in particular to a kind of enhanced conducting polypropylene of halloysite nanotubes
Material and preparation method thereof.
Background technology
Polypropylene（PP）It is a kind of non-polar polymeric material, with insulating properties very high, specific insulation can reach
1016-1020Ω cm, but electrostatic is often also easily produced, dust is adsorbed, have impact on applications of the PP in some fields.Low resistance
PP not only there is outstanding antistatic effect, and can be used in the fields such as electromagnetic shielding, semiconductor.
It is addition antistatic additive to reduce the conventional method of PP resistivity, by antistatic additive precipitate into surface reach it is antistatic
Effect, but resistance reduction degree is small, and easily loss, timeliness are short.By filling high-effective conductive particle or conductive fine in resin
Dimension can largely reduce resistivity of material, be more in the prior art filling conductive black.Chinese patent CN
Be combined for PP, EVA and conductive black by 1312321A, has reached good conductive effect.Chinese patent CN 1583867A exist
Used glass fiber material on the basis of PP, epoxy resin and conductive black, by forming fiber between overlap conductive path, obtain
More preferable electric conductivity polypropylene material.But, it is desirable to product possesses good electric conductivity and antistatic effect, it is necessary to add
Larger amount of conductive black, has reached and has oozed threshold value so that the production cost of material increases.And substantial amounts of conductive black and glass
Addition the intensity and toughness of material can be caused all to be greatly lowered, decline the performance of material, reduce the materials'use longevity
Life.So a kind of length that good intensity and toughness are provided simultaneously with good electric conductivity and antistatic effect of market in urgent need
The polypropylene material of service life.
The content of the invention
In order to overcome shortcoming and defect present in prior art, there is provided a kind of enhanced conduction poly- third of halloysite nanotubes
Alkene material and preparation method thereof, it adds the amount of conductive black few, with good electric conductivity and antistatic effect, while tool
Standby preferable intensity and toughness, long service life, simple production process, low production cost.
The present invention is achieved through the following technical solutions.
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
30-80 parts of PP resins
Polar elastomers 5-15 parts
Toughener 5-15 parts
Halloysite nanotubes 1-40 parts
Conductive black 4-15 parts
Nucleator 0-1 parts
0-2 parts of other auxiliary agents.
Preferably, a kind of described enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight
Raw material：
30-80 parts of PP resins
Polar elastomers 5-15 parts
Toughener 5-15 parts
Halloysite nanotubes 1-40 parts
Conductive black 4-15 parts
Nucleator 0.1-1 parts
0.1-2 parts of other auxiliary agents.
The PP resins are the one kind in polypropylene and co-polypropylene, and the molten value of preferably described PP resins is 1-10g/
min。
The polar elastomers are POE-g-MAH, PE-g-MAH, EPDM-g-MAH, SEBS-g-MAH, EMA, EVA, EAA
In one kind, the Shore A hardness of preferably described polar elastomers is 30-90.More preferably described polar elastomers are
POE-g-MAH, its grafting rate is more than 1%, and more preferable action effect can be produced with conductive black in melt blending.
The toughener is one or more the mixture of POE, PE, SEBS, EPDM, EPR, EMA, EVA, EAA.
Preferably described toughener is low viscous POE, and it can form the less dispersed phase of size in polypropylene matrix, improve material
Material toughness, while it has more preferable coating function to conductive black, helps conductive black to form smoothly conductive network, makes material
Material electric conductivity is good, and the consumption reduction of conductive black, cost declines.
The average grain diameter of the conductive black is 10-40nm, and specific surface area is 50-400m2/ g, ratio resistance is 10-20
Ω·cm。
The halloysite nanotubes are through the micro-tube shaped structure halloysite nanotubes of organic process；Preferably its average length
It it is 1-40 μm, average diameter is 10-50nm.Hydroxyl and polar elastomers on halloysite nanotubes phase interaction at processing temperatures
With, the distribution of expansion conductive black, and by its trickle size and big draw ratio, formed more with conductive black
Intensive conductive network, further enhances the electric conductivity of material and antistatic effect.Additionally, intensive network structure can be with
Effectively improve the intensity and tough of material.
The nucleator be Sorbitol Nucleator, organic phosphate or superfine talcum powder in one or more
Mixture.
Described other auxiliary agents are one or more the mixing in antioxidant, lubricant, light stabilizer, dispersant
Thing.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
Step A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing
3-10min, after raw material is fully mixed, by double screw extruder melt blending and extruding pelletization, obtains granular mixture, standby
With；
Step B, will obtain in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and A by ratio of weight and the number of copies
Granular mixture is added in mixer, mixes 3-10min, after being sufficiently mixed uniformly, by double screw extruder melt blending
And extruding pelletization；
Double screw extruder extrusion temperature is in wherein step A and step B：One 140-160 DEG C of area's temperature, two area's temperature
150-170 DEG C, three 160-180 DEG C of area's temperature, four 170-190 DEG C of area's temperature, five 180-200 DEG C of area's temperature, six area temperature 180-
200 DEG C, seven 180-200 DEG C of area's temperature, eight 170-190 DEG C of area's temperature；Screw speed 300-500rpm.
The beneficial effects of the present invention are：
The present invention uses low viscous toughener, helps conductive black to form smoothly conductive network, makes material conductivity
Can be good, the consumption reduction of conductive black.Further, by trickle, the big draw ratio of size halloysite nanotubes with lead
Electric carbon black forms the conductive network of more crypto set, further enhances the electric conductivity of material and antistatic effect, again effectively
Improve the intensity and tough of material.Synergy between conductive black, polar elastomers, galapectite, toughener, can
Significantly improve the electrical efficiency of PP.This method adds the amount of conductive black few, with good electric conductivity and antistatic effect,
It is provided simultaneously with preferable intensity and toughness, long service life.The present invention is prepared for conductive polypropylene material by two-step method, produces
Process is simple, low production cost is worthy to be popularized.The enhanced conducting polypropylene of halloysite nanotubes prepared by the present invention can lead
The field such as electricity, electromagnetic shielding, antistatic is applied, and has a wide range of application.
Specific embodiment
For the ease of the understanding of those skilled in the art, further is made to the present invention with reference to embodiment and comparative example
Illustrate, the content that implementation method is referred to not limitation of the invention.
Embodiment 1
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：78 parts
5 parts of polar elastomers
4 parts of toughener
8 parts of halloysite nanotubes
4 parts of conductive black
0.2 part of nucleator
0.8 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 8g/min；The polar elastomers are POE-g-MAH, its Shao
Family name A hardness is 30；The toughener is purchased from the POE 8130 of LG-DOW；The halloysite nanotubes place of production is that Hubei is suitable
Prosperous, its average length is 30 μm, and average diameter is 35nm；The conductive black is the Corpren CB 3100 that Sweden SPC is produced,
Average grain diameter is 30nm, and specific surface area is 150m2/ g, ratio resistance is 17 Ω cm；The nucleator be organic phosphate into
Core agent；Described other auxiliary agents are antioxidant 1010, irgasfos 168, calcium stearate and light stabilizer with ratio 1：1：1：1 composition
Mixture.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing 5min,
It is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the particle that will be obtained in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and A by ratio of weight and the number of copies
Shape mixture is added in mixer, mixes 5min, after being sufficiently mixed uniformly, is made by double screw extruder melt blending and extrusion
Grain；
Double screw extruder extrusion temperature is in step A and step B：One 150 DEG C of area's temperature, 165 DEG C of two area's temperature, 3rd area
180 DEG C of temperature, 190 DEG C of four area's temperature, 200 DEG C of five area's temperature, 200 DEG C of six area's temperature, 190 DEG C of seven area's temperature, eight area's temperature 190
℃.Screw speed is 400rpm.
Material prepared by embodiment 1 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Embodiment 2
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：68 parts
5 parts of polar elastomers
5 parts of toughener
15 parts of halloysite nanotubes
7 parts of conductive black
0.2 part of nucleator
0.8 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 1g/min；The polar elastomers are POE-g-MAH, its Shao
Family name A hardness is 50；The toughener is purchased from the POE 8130 of LG-DOW；The conductive black is what Sweden SPC was produced
Corpren CB 3100；The halloysite nanotubes place of production is Yichang, and its average length is 20 μm, and average diameter is
35nm；The nucleator is nucleator in organic phosphate class；Described other auxiliary agents are antioxidant 1010, irgasfos 168, stearic acid
Calcium and light stabilizer are with ratio 1：2：2：The mixture of 1 composition.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing 8min,
It is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the particle that will be obtained in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and A by ratio of weight and the number of copies
Shape mixture is added in mixer, mixes 8min, after being sufficiently mixed uniformly, is made by double screw extruder melt blending and extrusion
Grain；
Double screw extruder extrusion temperature is in step A and step B：One 160 DEG C of area's temperature, 170 DEG C of two area's temperature, 3rd area
175 DEG C of temperature, 185 DEG C of four area's temperature, 195 DEG C of five area's temperature, 185 DEG C of six area's temperature, 200 DEG C of seven area's temperature, eight area's temperature 185
DEG C, screw speed is 350rpm.
Material prepared by embodiment 2 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Embodiment 3
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：67 parts
8 parts of polar elastomers
4 parts of toughener
15 parts of halloysite nanotubes
5 parts of conductive black
0.3 part of nucleator
0.7 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 3g/min；The polar elastomers are purchased from Dupont
EMA HP4051, its Shore A hardness is 70；The toughener is the LLDPE 7042 that sinopec is produced, the halloysite nanotubes
The place of production is Yichang, and its average length is 50 μm, and average diameter is 35nm；The conductive black is what Sweden SPC was produced
Corpren CB 3100；The nucleator is nucleator in organic phosphate class；Described other auxiliary agents are antioxidant 1010, antioxygen
Agent 168, calcium stearate and light stabilizer are with ratio 1：2：3：The mixture of 4 compositions.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing 3min,
It is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the particle that will be obtained in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and A by ratio of weight and the number of copies
Shape mixture is added in mixer, mixes 3min, after being sufficiently mixed uniformly, is made by double screw extruder melt blending and extrusion
Grain；
Double screw extruder extrusion temperature is in step A and step B：One 140 DEG C of area's temperature, 150 DEG C of two area's temperature, 3rd area
160 DEG C of temperature, 170 DEG C of four area's temperature, 180 DEG C of five area's temperature, 180 DEG C of six area's temperature, 180 DEG C of seven area's temperature, eight area's temperature 170
℃.Screw speed is 500rpm.
Material prepared by embodiment 3 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Embodiment 4
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：63 parts
12 parts of polar elastomers
6 parts of toughener
25 parts of halloysite nanotubes
10 parts of conductive black
0.3 part of nucleator
0.7 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 5g/min；The polar elastomers are LDPE-g-MAH, its
Shore A hardness is 90；The toughener is purchased from the EPDM TPS SOFT of German Melos；The halloysite nanotubes place of production is
Yichang, its average length is 10 μm, and average diameter is 35nm；The conductive black is the Corpren CB that Sweden SPC is produced
3100；The nucleator is superfine talcum powder；Described other auxiliary agents are that antioxidant 1010, irgasfos 168, calcium stearate and light are steady
Agent is determined with ratio 1：2：1：The mixture of 1 composition.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing
10min, it is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the particle that will be obtained in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and A by ratio of weight and the number of copies
Shape mixture is added in mixer, mixes 10min, be sufficiently mixed it is uniform after, by double screw extruder melt blending and extrude
Granulation；
Double screw extruder extrusion temperature is in step A and step B：One 145 DEG C of area's temperature, 160 DEG C of two area's temperature, 3rd area
170 DEG C of temperature, 180 DEG C of four area's temperature, 190 DEG C of five area's temperature, 190 DEG C of six area's temperature, 185 DEG C of seven area's temperature, eight area's temperature 180
℃.Screw speed is 300rpm.
Material prepared by embodiment 4 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Embodiment 5
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：61.3 parts
5 parts of polar elastomers
8 parts of toughener
25 parts of halloysite nanotubes
4 parts of conductive black
0.7 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 7g/min, and the polar elastomers are LDPE-g-MAH, its
Shore A hardness is 90；The toughener is purchased from the POE 8130 of LG-DOW；The halloysite nanotubes place of production is that Hubei is suitable
Prosperous, its average length is 30 μm, and average diameter is 35nm；The conductive black is the Corpren CB 3100 that Sweden SPC is produced；
Described other auxiliary agents are antioxidant 1010, irgasfos 168, calcium stearate and light stabilizer with ratio 1：2：1：The mixing of 1 composition
Thing.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing
10min, it is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the granular mixture that will be obtained in PP resins, halloysite nanotubes, other auxiliary agents and A by ratio of weight and the number of copies
Add in mixer, mix 10min, after being sufficiently mixed uniformly, by double screw extruder melt blending and extruding pelletization；
Double screw extruder extrusion temperature is in step A and step B：One 145 DEG C of area's temperature, 160 DEG C of two area's temperature, 3rd area
170 DEG C of temperature, 180 DEG C of four area's temperature, 190 DEG C of five area's temperature, 190 DEG C of six area's temperature, 185 DEG C of seven area's temperature, eight area's temperature 180
℃.Screw speed is 300rpm.
Material prepared by embodiment 5 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Embodiment 6
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：57.7 parts
8 parts of polar elastomers
6 parts of toughener
20 parts of halloysite nanotubes
8 parts of conductive black
0.3 part of nucleator
Wherein, the PP resins are homopolymerization PP, and its molten value is 2g/min；The polar elastomers are SEBS-g-MAH, its
Shore A hardness is 75；The toughener is purchased from the SEBS YH-501 of Ba Ling petrochemical industry；The halloysite nanotubes place of production is lake
Northern Yichang, its average length is 30 μm, and average diameter is 35nm；The conductive black is the Corpren CB that Sweden SPC is produced
3100；The nucleator is a kind of Sorbitol Nucleator.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing
10min, it is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the granular mixture obtained in PP resins, halloysite nanotubes, nucleator and A is added by ratio of weight and the number of copies
Enter in mixer, mix 10min, after being sufficiently mixed uniformly, by double screw extruder melt blending and extruding pelletization；
Double screw extruder extrusion temperature is in step A and step B：One 145 DEG C of area's temperature, 160 DEG C of two area's temperature, 3rd area
170 DEG C of temperature, 180 DEG C of four area's temperature, 190 DEG C of five area's temperature, 190 DEG C of six area's temperature, 185 DEG C of seven area's temperature, eight area's temperature 180
℃.Screw speed is 300rpm.
Material prepared by embodiment 6 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Embodiment 7
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：68 parts
6 parts of polar elastomers
8 parts of toughener
10 parts of halloysite nanotubes
8 parts of conductive black
Wherein, the PP resins are homopolymerization, and its molten value is 10g/min；The polar elastomers are SEBS-g-MAH, its Shao
Family name A hardness is 75；The toughener is purchased from the EVA 2810A of U.S.'s Celanese；The halloysite nanotubes place of production is lake
Northern Yichang, its average length is 30 μm, and average diameter is 35nm；The conductive black is the Corpren CB that Sweden SPC is produced
3100。
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing 5min,
It is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the granular mixture that will be obtained in PP resins, halloysite nanotubes and A by ratio of weight and the number of copies add mixing
In machine, mix 5min, after being sufficiently mixed uniformly, by double screw extruder melt blending and extruding pelletization；
Double screw extruder extrusion temperature is in step A and step B：One 145 DEG C of area's temperature, 160 DEG C of two area's temperature, 3rd area
170 DEG C of temperature, 180 DEG C of four area's temperature, 190 DEG C of five area's temperature, 190 DEG C of six area's temperature, 185 DEG C of seven area's temperature, eight area's temperature 180
℃.Screw speed is 300rpm.
Material prepared by embodiment 7 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Comparative example 1
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：99.3 parts
0.7 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 5g/min, and described other auxiliary agents are antioxidant 1010, antioxygen
Agent 168, calcium stearate and light stabilizer are with ratio 1：2：1：The mixture of 1 composition.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
By ratio of weight and the number of copies by PP resins, other auxiliary agents addition mixer, mix 5min, after being sufficiently mixed uniformly, lead to
Cross double screw extruder melt blending and extruding pelletization；
Double screw extruder extrusion temperature is：One 150 DEG C of area's temperature, 165 DEG C of two area's temperature, 180 DEG C of three area's temperature, 4th area
190 DEG C of temperature, 200 DEG C of five area's temperature, 200 DEG C of six area's temperature, 190 DEG C of seven area's temperature, 190 DEG C of eight area's temperature.
Screw speed is 400rpm.
Material prepared by comparative example 1 is tested using ASTM standard, and specific test result is listed in Table 1 below.
Comparative example 2
A kind of enhanced conductive polypropylene material of halloysite nanotubes, including following parts by weight raw material：
PP resins：84 parts
5 parts of toughener
10 parts of conductive black
0.2 part of nucleator
0.8 part of other auxiliary agents
Wherein, the PP resins are homopolymerization PP, and its molten value is 3g/min, and the toughener is purchased from the POE of LG-DOW
8130, the halloysite nanotubes place of production is Yichang, and its average length is 30 μm, and average diameter is 35nm；The conduction
Carbon black is the Corpren CB 3100 that Sweden SPC is produced；The nucleator is nucleator in organic phosphate class；Described other auxiliary agents
It is antioxidant 1010, irgasfos 168, calcium stearate and light stabilizer with ratio 1：2：2：The mixture of 1 composition.
Enhanced conductive polypropylene material of a kind of halloysite nanotubes and preparation method thereof, comprises the following steps：
A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing 8min,
It is standby by double screw extruder melt blending and extruding pelletization after raw material is fully mixed；
B, the particle that will be obtained in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and A by ratio of weight and the number of copies
Shape mixture is added in mixer, mixes 8min, after being sufficiently mixed uniformly, is made by double screw extruder melt blending and extrusion
Grain；
Double screw extruder extrusion temperature is：One 160 DEG C of area's temperature, 170 DEG C of two area's temperature, 175 DEG C of three area's temperature, 4th area
185 DEG C of temperature, 195 DEG C of five area's temperature, 185 DEG C of six area's temperature, 200 DEG C of seven area's temperature, 185 DEG C of eight area's temperature.Screw speed is
350rpm。
Material prepared by comparative example 2 is tested using ASTM standard, and specific test result is listed in Table 1 below.
The performance of the embodiment of table 1. and comparative example
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Comparative example 1 | Comparative example 2 | |
| Tensile strength（MPa） | 24.3 | 24.6 | 23.9 | 23.1 | 22.5 | 27.2 | 26.0 | 34.2 | 20.8 |
| Elongation at break（%） | 157 | 96 | 121 | 155 | 163 | 139 | 112 | 156 | 56 |
| Bending strength（MPa） | 34.2 | 38.6 | 36.9 | 34.3 | 33.2 | 40.6 | 38.9 | 34.3 | 33.8 |
| Bending modulus（MPa） | 1654 | 1910 | 1858 | 1556 | 1456 | 2159 | 1923 | 1232 | 1534 |
| Izod notched impact strength（J/m） | 74 | 63 | 86 | 97 | 105 | 89 | 82 | 39 | 36 |
| Specific insulation（Ω·cm） | 8.2×105 | 3.8×105 | 9.2×104 | 4.6×104 | 5.6×105 | 1.1×105 | 6.4×105 | 8.9×1017 | 4.5×108 |
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can be realized with other manner,
Any obvious replacement is within protection scope of the present invention on the premise of not departing from present inventive concept.
Claims (6)
1. the enhanced conductive polypropylene material of a kind of halloysite nanotubes, it is characterised in that：Raw material including following parts by weight：
57.7-78 parts of PP resins
Polar elastomers 5-15 parts
Toughener 4-8 parts
Halloysite nanotubes 8-25 parts
Conductive black 4-15 parts
Nucleator 0.1-1 parts
0.1-2 parts of other auxiliary agents；
The polar elastomers are in POE-g-MAH, PE-g-MAH, EPDM-g-MAH, SEBS-g-MAH, EMA, EVA, EAA
One kind, its Shore A hardness is 30-90；The average grain diameter of the conductive black is 10-40nm, and specific surface area is 50-400m2/g,
Ratio resistance is 10-20 Ω cm；The halloysite nanotubes are through the micro-tube shaped structure halloysite nanotubes of organic process, averagely
Length is 1-40 μm, and average diameter is 10-50nm.
2. the enhanced conductive polypropylene material of a kind of halloysite nanotubes according to claim 1, it is characterised in that：It is described
PP resins are the one kind in polypropylene and co-polypropylene, and its molten value is 1-10g/min.
3. the enhanced conductive polypropylene material of a kind of halloysite nanotubes according to claim 1, it is characterised in that：It is described
Toughener is one or more the mixture of POE, PE, SEBS, EPDM, EPR, EMA, EVA, EAA.
4. the enhanced conductive polypropylene material of a kind of halloysite nanotubes according to claim 1, it is characterised in that：It is described
Nucleator is one or more the mixture in Sorbitol Nucleator, organic phosphate or superfine talcum powder.
5. the enhanced conductive polypropylene material of a kind of halloysite nanotubes according to claim 1, it is characterised in that：It is described
Other auxiliary agents are one or more the mixture in antioxidant, lubricant, light stabilizer, dispersant.
6. the preparation side of the enhanced conductive polypropylene material of a kind of halloysite nanotubes in claim 1-5 described in any one
Method, it is characterised in that：Comprise the following steps：
Step A, by ratio of weight and the number of copies by polar elastomers, conductive black and toughener add mixer in, stirring mixing 3-
10min, after raw material is fully mixed, by double screw extruder melt blending and extruding pelletization, obtains granular mixture, standby
With；
Step B, will obtain in PP resins, halloysite nanotubes, nucleator, other auxiliary agents and step A by ratio of weight and the number of copies
Granular mixture is added in mixer, mixes 3-10min, after being sufficiently mixed uniformly, by double screw extruder melt blending
And extruding pelletization；
Double screw extruder extrusion temperature is in wherein step A and step B：One 140-160 DEG C of area's temperature, two area temperature 150-
170 DEG C, three 160-180 DEG C of area's temperature, four 170-190 DEG C of area's temperature, five 180-200 DEG C of area's temperature, six area temperature 180-200
DEG C, seven 180-200 DEG C of area's temperature, eight 170-190 DEG C of area's temperature；Screw speed 300-500rpm.
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| EP3162844B1 (en) * | 2015-10-26 | 2018-11-28 | SABIC Global Technologies B.V. | Polypropylene composition comprising a nucleating composition comprising aluminosilicate and an organic nucleating agent |
| CN105330978A (en) * | 2015-12-15 | 2016-02-17 | 苏州鑫德杰电子有限公司 | Moistureproof antistatic polypropylene composite for instrument and preparation method of moistureproof antistatic polypropylene composite |
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| CN114635281A (en) * | 2022-04-25 | 2022-06-17 | 吴江市兰天织造有限公司 | Terylene weft elastic wave crepe double-layer down-filled cloth |
| CN116144104A (en) * | 2022-12-13 | 2023-05-23 | 湖北合聚高分子材料有限公司 | Halloysite/talcum powder composite modified PP material and preparation method thereof |
| CN116987345B (en) * | 2023-09-27 | 2023-12-01 | 南方珠江科技有限公司 | Heat-resistant insulating overhead cable and preparation method thereof |
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