CN106832567A - A kind of PTC types carbon black polymer composite and preparation method thereof - Google Patents
A kind of PTC types carbon black polymer composite and preparation method thereof Download PDFInfo
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- CN106832567A CN106832567A CN201611181489.2A CN201611181489A CN106832567A CN 106832567 A CN106832567 A CN 106832567A CN 201611181489 A CN201611181489 A CN 201611181489A CN 106832567 A CN106832567 A CN 106832567A
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- Prior art keywords
- carbon black
- ptc
- polymer composite
- carbon
- density polyethylene
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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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
- C08L2312/00—Crosslinking
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of PTC types carbon black polymer composite, it is made up of the raw material of following weight parts：Polypropylene 70 77, high density polyethylene (HDPE) 65 70, carbon fiber T300 20 25, carbon black N750 17 22, butyl titanate 0.7 0.9, glycerine 0.3 0.4, isopropanol 0.1 0.2, triacetamide 0.2 0.4, p-methyl benzenesulfonic acid 0.9 1, antioxidant 1010 0.6 0.8, aluminium hydroxide 0.2 0.4, triazine carbon forming agent 0.1 0.3, dibutyl maleate 13, medical stone powder 10 12.Present invention repeatability with relatively low room temperature resistivity, the electric conductivity of stabilization, PTC intensity higher and weaker NTC effects and preferably, high-temperature resistant result is preferable.
Description
Technical field
The present invention relates to a kind of composite, more particularly to a kind of PTC types carbon black polymer composite and its preparation side
Method.
Background technology
PTC polymer heating materials are widely used in communicating, count as overheat, overcurrent protection and temp auto-controlled heating material
In the various fields such as calculation machine, automobile, Industry Control, household electrical appliance.Current organic PTC material is primarily present room temperature resistance point
Cloth is wider, the problems such as PTC intensity is small, stability is relatively low, resistance to elevated temperatures is weaker.
The content of the invention
Defect and deficiency it is an object of the invention to be directed to prior art, there is provided a kind of PTC types carbon black macromolecule is combined
Material and preparation method thereof, it has relatively low room temperature resistivity, the electric conductivity of stabilization, PTC intensity higher and weaker
NTC effects and preferably repeatability, resistance to elevated temperatures are stronger.
To achieve the above object, the present invention uses following technical scheme.
A kind of PTC types carbon black polymer composite, it is made up of the raw material of following weight parts：Polypropylene 70-77,
High density polyethylene (HDPE) 65-70, carbon fiber T300 20-25, carbon black N750 17-22, butyl titanate 0.7-0.9, glycerine 0.3-
0.4th, isopropanol 0.1-0.2, triacetamide 0.2-0.4, p-methyl benzenesulfonic acid 0.9-1, antioxidant 1010 0.6-0.8, aluminium hydroxide
0.2-0.4, triazine carbon forming agent 0.1-0.3, dibutyl maleate 1-3, medical stone powder 10-12.
Further, it is made up of the raw material of following weight parts：Polypropylene 73, high density polyethylene (HDPE) 68, carbon fiber
T300 22, carbon black N750 19, butyl titanate 0.8, glycerine 0.35, isopropanol 0.15, triacetamide 0.3, p-methyl benzenesulfonic acid
0.95th, antioxidant 1010 0.7, aluminium hydroxide 0.3, triazine carbon forming agent 0.2, dibutyl maleate 2, medical stone powder 11.
A kind of preparation method of PTC types carbon black polymer composite, comprises the following steps：
（1）Above-mentioned polypropylene, high density polyethylene (HDPE) and butyl titanate are sufficiently mixed, double screw extruder is added mixture into,
Extruded under the conditions of screw speed 100-110r/min, 160-180 DEG C of extrusion temperature, be made matrix resin；
（2）The matrix resin that will be made is poured into double rod cylinder plastics processing mills, mixing to it is uniform in flakes, then be homogeneously added into above-mentioned carbon black
N750 and carbon fiber T300, it is 10-20min to control the time of plasticating；
（3）Composite after plasticating is mixed with remaining each raw material, and adds the deionized water of 30-40 times of compound weight,
80-90 DEG C is warming up to, vulcanization in mould is fitted into after product is dried, curing temperature is 130-170 DEG C, heat-insulation preheating 10-
15min, the hot pressing 10-15min under pressure 8-10MPa, pressurize is cooled to the demoulding after normal temperature, that is, obtain required PTC types carbon black high
Molecular composite material.
Advantages of the present invention is：Composite prepared by the present invention, using two kinds of polymer as matrix, course of reaction
In Application can occur, improve the reappearance of material resistance；Add antioxidant 1010 so that composite it is long-term
Energization stability and break-make electrical stability is improved repeatedly；Aluminium hydroxide and triazine carbon forming agent are added, is effectively increased compound
The resistance to elevated temperatures of material；Using butyl titanate as crosslinking agent, while cross-linking reaction, the viscous of polymer is effectively increased
Conjunction property.The present invention with relatively low room temperature resistivity, the electric conductivity of stabilization, PTC intensity higher and weaker NTC effects and
It is preferably repeated.
Specific embodiment
The following is embodiments of the invention one.
A kind of PTC types carbon black polymer composite, it is made up of the raw material of following weight parts：Polypropylene 70, height
Density polyethylene 65, carbon fiber T300 20, carbon black N750 17, butyl titanate 0.7, glycerine 0.3, isopropanol 0.1, triacetamide
0.2nd, p-methyl benzenesulfonic acid 0.9, antioxidant 1010 0.6, aluminium hydroxide 0.2, triazine carbon forming agent 0.1, dibutyl maleate 1,
Medical stone powder 10.
The following is embodiments of the invention two.
A kind of PTC types carbon black polymer composite, it is made up of the raw material of following weight parts：Polypropylene 73, height
Density polyethylene 68, carbon fiber T300 22, carbon black N750 19, butyl titanate 0.8, glycerine 0.35, isopropanol 0.15, triacetyl
Amine 0.3, p-methyl benzenesulfonic acid 0.95, antioxidant 1010 0.7, aluminium hydroxide 0.3, triazine carbon forming agent 0.2, Dibutyl Maleate
Ester 2, medical stone powder 11.
The following is embodiments of the invention three.
A kind of PTC types carbon black polymer composite, it is made up of the raw material of following weight parts：Polypropylene 77, height
Density polyethylene 70, carbon fiber T300 25, carbon black N750 22, butyl titanate 0.9, glycerine 0.4, isopropanol 0.2, triacetamide
0.4th, p-methyl benzenesulfonic acid 1, antioxidant 1010 0.8, aluminium hydroxide 0.4, triazine carbon forming agent 0.3, dibutyl maleate 3, wheat
Meal stone flour 12.
A kind of preparation method of PTC types carbon black polymer composite as claimed in claim 1, comprises the following steps：
（1）Above-mentioned polypropylene, high density polyethylene (HDPE) and butyl titanate are sufficiently mixed, double screw extruder is added mixture into,
Extruded under the conditions of screw speed 110r/min, 180 DEG C of extrusion temperature, be made matrix resin；
（2）The matrix resin that will be made is poured into double rod cylinder plastics processing mills, mixing to it is uniform in flakes, then be homogeneously added into above-mentioned carbon black
N750 and carbon fiber T300, it is 20min to control the time of plasticating；
（3）Composite after plasticating is mixed with remaining each raw material, and adds the deionized water of 40 times of compound weight, heated up
To 90 DEG C, vulcanization in mould is fitted into after product is dried, curing temperature is 150 DEG C, heat-insulation preheating 15min, in pressure
Hot pressing 15min under 10MPa, pressurize is cooled to the demoulding after normal temperature, that is, obtain required PTC types carbon black polymer composite.
Claims (3)
1. a kind of PTC types carbon black polymer composite, it is characterised in that it is made up of the raw material of following weight parts：It is poly-
Propylene 70-77, high density polyethylene (HDPE) 65-70, carbon fiber T300 20-25, carbon black N750 17-22, butyl titanate 0.7-0.9,
Glycerine 0.3-0.4, isopropanol 0.1-0.2, triacetamide 0.2-0.4, p-methyl benzenesulfonic acid 0.9-1, antioxidant 1010 0.6-0.8,
Aluminium hydroxide 0.2-0.4, triazine carbon forming agent 0.1-0.3, dibutyl maleate 1-3, medical stone powder 10-12.
2. PTC types carbon black polymer composite according to claim 1, it is characterised in that it is by following weight parts
Raw material composition：It is polypropylene 73, high density polyethylene (HDPE) 68, carbon fiber T300 22, carbon black N750 19, butyl titanate 0.8, sweet
Oil 0.35, isopropanol 0.15, triacetamide 0.3, p-methyl benzenesulfonic acid 0.95, antioxidant 1010 0.7, aluminium hydroxide 0.3, triazine
Carbon forming agent 0.2, dibutyl maleate 2, medical stone powder 11.
3. a kind of preparation method of PTC types carbon black polymer composite as claimed in claim 1, it is characterised in that including
Following steps：
（1）Above-mentioned polypropylene, high density polyethylene (HDPE) and butyl titanate are sufficiently mixed, double screw extruder is added mixture into,
Extruded under the conditions of screw speed 100-110r/min, 160-180 DEG C of extrusion temperature, be made matrix resin；
（2）The matrix resin that will be made is poured into double rod cylinder plastics processing mills, mixing to it is uniform in flakes, then be homogeneously added into above-mentioned carbon black
N750 and carbon fiber T300, it is 10-20min to control the time of plasticating；
（3）Composite after plasticating is mixed with remaining each raw material, and adds the deionized water of 30-40 times of compound weight,
80-90 DEG C is warming up to, vulcanization in mould is fitted into after product is dried, curing temperature is 130-170 DEG C, heat-insulation preheating 10-
15min, the hot pressing 10-15min under pressure 8-10MPa, pressurize is cooled to the demoulding after normal temperature, that is, obtain required PTC types carbon black high
Molecular composite material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611181489.2A CN106832567A (en) | 2016-12-20 | 2016-12-20 | A kind of PTC types carbon black polymer composite and preparation method thereof |
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| CN201611181489.2A CN106832567A (en) | 2016-12-20 | 2016-12-20 | A kind of PTC types carbon black polymer composite and preparation method thereof |
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| CN106832567A true CN106832567A (en) | 2017-06-13 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597396A (en) * | 2009-07-02 | 2009-12-09 | 浙江华源电热有限公司 | Polymer-based positive temperature coefficient thermistor material |
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2016
- 2016-12-20 CN CN201611181489.2A patent/CN106832567A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597396A (en) * | 2009-07-02 | 2009-12-09 | 浙江华源电热有限公司 | Polymer-based positive temperature coefficient thermistor material |
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Application publication date: 20170613 |
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