CN104910513A - Flame-retardant polypropylene composite material and preparation method thereof - Google Patents
Flame-retardant polypropylene composite material and preparation method thereof Download PDFInfo
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- CN104910513A CN104910513A CN201510277822.9A CN201510277822A CN104910513A CN 104910513 A CN104910513 A CN 104910513A CN 201510277822 A CN201510277822 A CN 201510277822A CN 104910513 A CN104910513 A CN 104910513A
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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
- C08L2201/02—Flame or fire retardant/resistant
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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Abstract
The present invention discloses a flame-retardant polypropylene composite material and a preparation method thereof, wherein the composite material comprises, by mass, 25-43 parts of polypropylene, 11-19 parts of a polypropylene grafted maleic anhydride copolymer, 5-12 parts of a flame-retardant agent, 2-15 parts of ethylenebis(stearamide), 6-14 parts of methyl p-hydroxybenzoate, 3-8 parts of calcium stearate, 7-18 parts of silicon dioxide, 1-9 parts of Benzophenone, and 2-8 parts of sodium pyrosulfite. The prepared composite material of the present invention has characteristics of improved tensile strength, improved impact strength, improved flexural strength and flame retardant effect, and can further be widely used in fuel tanks, fuel pipelines, lubricating oil pots and other fields.
Description
Technical field
The invention belongs to polymeric material field, be specifically related to a kind of flame-retardant polypropylene composite material and preparation method thereof.
Background technology
Polypropylene, be a kind of thermoplastic resin obtained by propylene polymerization, be generally translucent colorless solid, odorless is nontoxic.Inexpensive, the easy recovery of polypropylene light weight, modification technology maturation are one of kinds that in current plastics, consumption is maximum, with the fastest developing speed.
Polypropylene has many good characteristics: (1) relative density is little, is only 0.89-0.91, is one of kind the lightest in plastics; (2) good mechanical property, except shock-resistance, other mechanical properties are all good than polyethylene, and moulding processability is good; (3) have higher thermotolerance, continuous use temperature can reach 110-120 DEG C; (4) chemical property is good, absorbs water hardly, does not react with most pharmaceutical chemicals; (5) quality is pure, nontoxicity; (6) electrical insulating property is good; (7) transparency of polypropylene articles is better than the transparency of high density polyethylene(HDPE) goods.
But combustion incident in use easily occurs the goods such as fuel tank, oil fuel pipe, lubrication oil can, have great harm to the safety of people and environment, existing material can not reach good mechanical property and fire-retardant requirement simultaneously.
Summary of the invention
In order to overcome above the deficiencies in the prior art, the invention provides a kind of flame-retardant polypropylene composite material and preparation method thereof, while improving the tensile strength of material, shock strength and flexural strength, fire-retardant effect can also be reached, the fields such as fuel tank, oil fuel pipe, lubrication oil can be widely used in.
The technical solution used in the present invention is: a kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polipropene 25-43 parts, polypropylene grafted maleic anhydride copolymer 1 1-19 part, fire retardant 5-12 part, ethylene bis stearamide 2-15 part, p-Hydroxybenzoate 6-14 part, calcium stearate 3-8 part, silicon-dioxide 7-18 part, benzophenone 1-9 part, Sodium Pyrosulfite 2-8 part.
Preferably, a kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 27-38 part, polypropylene grafted maleic anhydride copolymer 1 4-17 part, fire retardant 7-10 part, ethylene bis stearamide 5-11 part, p-Hydroxybenzoate 8-11 part, calcium stearate 4-7 part, silicon-dioxide 9-15 part, benzophenone 2-7 part, Sodium Pyrosulfite 3-6 part.
Preferred, a kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 33 parts, polypropylene grafted maleic anhydride copolymer 16 parts, fire retardant 9 parts, ethylene bis stearamide 8 parts, p-Hydroxybenzoate 10 parts, calcium stearate 5 parts, silica 12 parts, benzophenone 6 parts, Sodium Pyrosulfite 4 parts.
The particle diameter of above-mentioned silicon-dioxide is 150-200 order.
Above-mentioned fire retardant is the one in melamine phosphate, ammonium polyphosphate, tris(2-hydroxy ethyl)isocyanurate.
A preparation method for flame-retardant polypropylene composite material, comprises the following steps:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 80-100 DEG C of temperature, speed is 300-500r/min, obtains compound one;
(2) in step (1) gained compound one, add fire retardant and polypropylene grafted maleic anhydride multipolymer, mix at 150-175 DEG C of temperature, speed is 1000-1200r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product.
In above-mentioned steps (3), twin screw extruder temperature is set to 200-220 DEG C, and rotating speed is set to 300-400 r/min.
Beneficial effect: the flame-retardant polypropylene composite material that the present invention obtains is by the synergy before component, fire-retardant effect can be reached while making matrix material have good mechanical property, wherein flame retardant resistance is V-0 rank, tensile strength is between 28.6-31.3MPa, flexural strength is between 108.6-115.3MPa, and shock strength is at 17.8-19.6 KJ/M
2between, the fields such as fuel tank, oil fuel pipe, lubrication oil can be widely used in.
Embodiment
Embodiment 1
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polipropene 25 part, polypropylene grafted maleic anhydride copolymer 11 part, melamine phosphate 5 parts, ethylene bis stearamide 2 parts, p-Hydroxybenzoate 6 parts, calcium stearate 3 parts, silicon-dioxide (150 order) 7 parts, benzophenone 1 part, Sodium Pyrosulfite 2 parts.
Preparation method:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 80 DEG C of temperature, speed is 300r/min, obtains compound one;
(2) in step (1) gained compound one, add melamine phosphate and polypropylene grafted maleic anhydride multipolymer, mix at 150 DEG C of temperature, speed is 1000r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 200 DEG C, and rotating speed is set to 300 r/min.
Embodiment 2
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 43 parts, polypropylene grafted maleic anhydride copolymer 19 parts, ammonium polyphosphate 12 parts, ethylene bis stearamide 15 parts, p-Hydroxybenzoate 14 parts, calcium stearate 8 parts, silicon-dioxide (200 order) 18 parts, benzophenone 9 parts, Sodium Pyrosulfite 8 parts.
Preparation method:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 100 DEG C of temperature, speed is 500r/min, obtains compound one;
(2) in step (1) gained compound one, add ammonium polyphosphate and polypropylene grafted maleic anhydride multipolymer, mix at 175 DEG C of temperature, speed is 1200r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 220 DEG C, and rotating speed is set to 400 r/min.
Embodiment 3
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 27 parts, polypropylene grafted maleic anhydride copolymer 14 parts, ammonium polyphosphate 7 parts, ethylene bis stearamide 5 parts, p-Hydroxybenzoate 8 parts, calcium stearate 4 parts, silicon-dioxide (180 order) 9 parts, benzophenone 2 parts, Sodium Pyrosulfite 3 parts.
Preparation method:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 90 DEG C of temperature, speed is 350r/min, obtains compound one;
(2) in step (1) gained compound one, add ammonium polyphosphate and polypropylene grafted maleic anhydride multipolymer, mix at 155 DEG C of temperature, speed is 1100r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 210 DEG C, and rotating speed is set to 350 r/min.
Embodiment 4
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 38 parts, polypropylene grafted maleic anhydride copolymer 17 parts, tris(2-hydroxy ethyl)isocyanurate 10 parts, ethylene bis stearamide 11 parts, p-Hydroxybenzoate 11 parts, calcium stearate 7 parts, silicon-dioxide (180 order) 15 parts, benzophenone 7 parts, Sodium Pyrosulfite 6 parts.
Preparation method:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 95 DEG C of temperature, speed is 450r/min, obtains compound one;
(2) in step (1) gained compound one, add tris(2-hydroxy ethyl)isocyanurate and polypropylene grafted maleic anhydride multipolymer, mix at 160 DEG C of temperature, speed is 1100r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 210 DEG C, and rotating speed is set to 350 r/min.
Embodiment 5
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 33 parts, polypropylene grafted maleic anhydride copolymer 16 parts, tris(2-hydroxy ethyl)isocyanurate 9 parts, ethylene bis stearamide 8 parts, p-Hydroxybenzoate 10 parts, calcium stearate 5 parts, silicon-dioxide (180 order) 12 parts, benzophenone 6 parts, Sodium Pyrosulfite 4 parts.
Preparation method:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 90 DEG C of temperature, speed is 400r/min, obtains compound one;
(2) in step (1) gained compound one, add tris(2-hydroxy ethyl)isocyanurate and polypropylene grafted maleic anhydride multipolymer, mix at 165 DEG C of temperature, speed is 1100r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 215 DEG C, and rotating speed is set to 350r/min.
Comparative example 1
Do not add tris(2-hydroxy ethyl)isocyanurate with the difference of embodiment 5.
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 33 parts, polypropylene grafted maleic anhydride copolymer 16 parts, ethylene bis stearamide 8 parts, p-Hydroxybenzoate 10 parts, calcium stearate 5 parts, silicon-dioxide (180 order) 12 parts, benzophenone 6 parts, Sodium Pyrosulfite 4 parts.
Preparation method:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 90 DEG C of temperature, speed is 400r/min, obtains compound one;
(2) in step (1) gained compound one, add polypropylene grafted maleic anhydride multipolymer, mix at 165 DEG C of temperature, speed is 1100r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 215 DEG C, and rotating speed is set to 350r/min.
Comparative example 2
Do not add calcium stearate with the difference of embodiment 5.
A kind of flame-retardant polypropylene composite material, is made up of each component of following mass parts: polypropylene 33 parts, polypropylene grafted maleic anhydride copolymer 16 parts, tris(2-hydroxy ethyl)isocyanurate 9 parts, ethylene bis stearamide 8 parts, p-Hydroxybenzoate 10 parts, silicon-dioxide (180 order) 12 parts, benzophenone 6 parts, Sodium Pyrosulfite 4 parts.
Preparation method:
(1) by above-mentioned mass parts, add in mixing and blending machine by polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, silicon-dioxide, benzophenone and Sodium Pyrosulfite, mix at 90 DEG C of temperature, speed is 400r/min, obtains compound one;
(2) in step (1) gained compound one, add tris(2-hydroxy ethyl)isocyanurate and polypropylene grafted maleic anhydride multipolymer, mix at 165 DEG C of temperature, speed is 1100r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product, wherein twin screw extruder temperature is set to 215 DEG C, and rotating speed is set to 350r/min.
Performance test:
The composite property test result that embodiment 1-5 and comparative example 1-2 obtains is as shown in the table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 | Comparative example 2 | |
| Flame retardant resistance | V-0 | V-0 | V-0 | V-0 | V-0 | V-1 | V-0 |
| Tensile strength (MPa) | 28.6 | 29.2 | 29.0 | 30.4 | 31.3 | 23.1 | 21.0 |
| Flexural strength (MPa) | 108.6 | 109.1 | 110.5 | 109.4 | 115.3 | 110.2 | 87.4 |
| Shock strength (KJ/M 2 ) | 17.8 | 17.9 | 18.3 | 19.0 | 19.6 | 14.6 | 13.9 |
As can be seen from the above table: do not add tris(2-hydroxy ethyl)isocyanurate in comparative example 1, cause the flame retardant properties of product to decline, tensile strength and shock strength also decline to some extent simultaneously; Do not add calcium stearate in comparative example 2, cause the tensile strength of product, flexural strength, shock strength to decline all to some extent.
The flame-retardant polypropylene composite material that the present invention obtains is by the synergy before component, fire-retardant effect can be reached while making matrix material have good mechanical property, wherein flame retardant resistance is V-0 rank, tensile strength is between 28.6-31.3MPa, flexural strength is between 108.6-115.3MPa, and shock strength is at 17.8-19.6 KJ/M
2between, the fields such as fuel tank, oil fuel pipe, lubrication oil can be widely used in.
Claims (7)
1. a flame-retardant polypropylene composite material, it is characterized in that, be made up of the component of following mass parts: polipropene 25-43 parts, polypropylene grafted maleic anhydride copolymer 1 1-19 part, fire retardant 5-12 part, ethylene bis stearamide 2-15 part, p-Hydroxybenzoate 6-14 part, calcium stearate 3-8 part, silicon-dioxide 7-18 part, benzophenone 1-9 part, Sodium Pyrosulfite 2-8 part.
2. a kind of flame-retardant polypropylene composite material according to claim 1, it is characterized in that, be made up of the component of following mass parts: polypropylene 27-38 part, polypropylene grafted maleic anhydride copolymer 1 4-17 part, fire retardant 7-10 part, ethylene bis stearamide 5-11 part, p-Hydroxybenzoate 8-11 part, calcium stearate 4-7 part, silicon-dioxide 9-15 part, benzophenone 2-7 part, Sodium Pyrosulfite 3-6 part.
3. a kind of flame-retardant polypropylene composite material according to claim 1, it is characterized in that, be made up of the component of following mass parts: polypropylene 33 parts, polypropylene grafted maleic anhydride copolymer 16 parts, fire retardant 9 parts, ethylene bis stearamide 8 parts, p-Hydroxybenzoate 10 parts, calcium stearate 5 parts, silica 12 parts, benzophenone 6 parts, Sodium Pyrosulfite 4 parts.
4. a kind of flame-retardant polypropylene composite material according to claim 1, is characterized in that, the particle diameter of described silicon-dioxide is 150-200 order.
5. a kind of flame-retardant polypropylene composite material according to claim 1, is characterized in that, described fire retardant is the one in melamine phosphate, ammonium polyphosphate, tris(2-hydroxy ethyl)isocyanurate.
6. the preparation method of a kind of flame-retardant polypropylene composite material of claim 1 to 5 described in any one, is characterized in that: comprise the following steps:
(1) by above-mentioned mass parts, polypropylene, ethylene bis stearamide, p-Hydroxybenzoate, calcium stearate, silicon-dioxide, benzophenone and Sodium Pyrosulfite are added in mixing and blending machine, mix at 80-100 DEG C of temperature, speed is 300-500r/min, obtains compound one;
(2) in step (1) gained compound one, add fire retardant and polypropylene grafted maleic anhydride multipolymer, mix at 150-175 DEG C of temperature, speed is 1000-1200r/min, obtains compound two;
(3) extrude after step (2) gained compound two through twin screw extruder, cooling, dry, after cutting and get final product.
7. the preparation method of a kind of flame-retardant polypropylene composite material according to claim 6, is characterized in that: in described step (3), twin screw extruder temperature is set to 200-220 DEG C, and rotating speed is set to 300-400 r/min.
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| CN201510277822.9A CN104910513A (en) | 2015-05-27 | 2015-05-27 | Flame-retardant polypropylene composite material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106589605A (en) * | 2016-12-19 | 2017-04-26 | 韩进 | Special material for automobile door guard board and preparation method thereof |
| CN114989523A (en) * | 2022-07-19 | 2022-09-02 | 中化学科学技术研究有限公司 | Flame-retardant resin composition, preparation method thereof and cable |
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2015
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106589605A (en) * | 2016-12-19 | 2017-04-26 | 韩进 | Special material for automobile door guard board and preparation method thereof |
| CN114989523A (en) * | 2022-07-19 | 2022-09-02 | 中化学科学技术研究有限公司 | Flame-retardant resin composition, preparation method thereof and cable |
| CN114989523B (en) * | 2022-07-19 | 2023-08-22 | 中化学科学技术研究有限公司 | Flame-retardant resin composition, method for producing same, and cable |
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