CN102558674B - Flame-retardant polypropylene composition with high glow-wire ignition temperature - Google Patents
Flame-retardant polypropylene composition with high glow-wire ignition temperature Download PDFInfo
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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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
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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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- 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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
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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
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
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Abstract
The invention discloses a flame-retardant polypropylene composition with high glow-wire ignition temperature (GWIT). The composition is characterized by comprising the following components in percentage by weight: 35.0 to 66.5 percent of polypropylene, 15.0 to 20.0 percent of brominated flame retardants, 3.0 to 8.0 percent of flame-retardant synergist, 15.0 to 35.0 percent of high-efficiency composite flame retardant, 0.1 to 0.5 percent of primary antioxidant, 0.1 to 0.5 percent of auxiliary antioxidant and 0.3 to 1.0 percent of processing aid. The composition has the advantages that: a) the composite flame retardant can achieve a microcapsule coating effect around the composite flame retardant, and the heat is taken away and the heat conduction is reduced by isolating oxygen; b) ultrafine magnesium hydroxide can generate metal oxide to reduce heat conduction in the heating process of a glow wire, and produce steam which can take away the heat, and the surface treatment of the precipitated ultrafine magnesium hydroxide slightly affects the mechanical properties of the flame-retardant modified polypropylene composition; and c) an organosiloxane polymer with high polymerization degree can form a silicon carbide gel isolation layer to isolate oxygen and achieve a flame-retardant effect, the GWIT is higher than required 750 DEG C, and the composition is widely applied to the fields of machinery, industry and the like.
Description
Technical field
The invention discloses a kind of polypropene composition, particularly a kind of have a high glow-wire ignition temperature flame-proof polypropelene composition.
Background technology
Polypropylene flame redardant has high heat resistance, good folding property and good flame retardant properties, is widely used in the fields such as electronic apparatus, mechanical industry.But these products particularly in electronic product some element because the reasons such as loose contact, overload or short circuit cause local superheating and may cause burning, jeopardize whole system safe handling.For preventing trouble before it happens, the method of carrying out of check electric equipment products ignition hazard experiment is to repeat the condition that occurs in practice completely, but is in most cases impossible, therefore, in order to simulate as far as possible situation about occurring in reality, glowing filament experiment is the better method of inspection.
The requirement of existing making product is, glowing filament printing and dyeing temperature reaches 750 ℃, when end product carries out the GWIT test of 750 ℃, there is the flame time to be not more than 2s, yet because end product shape is different with design, for making end product GWIT reach 750 ℃, require different thickness sheet material when test GWIT, can meet and have the flame time to be not more than 2s, this just needs the composition of high temperature resistant glow wire ignition temperature.
In patent US 2005/0004277 Al, disclosing a kind of bromine is flame-retardant glass-fiber reinforced nylon-6,6 fire-retardant mixtures, it uses fire retardant is bromine polystyrene, by adding two ethyl phosphonic acids (DEPAL) and melamine pyrophosphate salt that glow wire ignition index (GWIT) can be provided.
In patent US 2006/0058432 Al, a kind of halogen-free flame-retardant reinforced nylon composite materials that comprises metal phosphate and diphosphate and nitrogenated flame retardant is described, when adding, there is polyarylether, polyetherimide, polyetherimide and polyimide copolymer, polyaryl thioether sulfone, polyether-ether-ketone and toughness reinforcing and SMA (styrene-maleic anhydride copolymer), can improve this system halogen-free reinforced nylon mixture more than GWIT to 775 ℃.
In patent US 2008/0161490 Al, relate to a kind of halogen-free combustion-proof thermoplastic nylon composite, mixture is by cladodification thermoplastic nylon, list or two poly-phosphate, containing nitrogen combustion inhibitor with at least form containing the metallic compound of oxygen or a kind of element of sulphur, and this mixture can meet different thickness GWIT and be at least 750 ℃.
Chinese patent CN101928449A discloses a kind of high glow-wire and has ignited ignition temperature flame-retardant enhancing according to mutual-phenenyl two acid bromide two alcohol ester, within two minutes in 25 ~ 68%, according to two minutes toughner in two minutes synergists, 1 ~ 10% in mutual-phenenyl two acid bromide two alcohol ester, 10 ~ 30% parts by weight of flame retardant, 2 ~ 10% and 10 ~ 40% weight part acts of violence, form, this invents the glowing filament ignition temperature of fire-retardant enhancing polybutylene terephthalate Zhi treatment wax, higher mechanical property.
Chinese patent CN102002221A discloses a kind of halogen-free high glowing filament ignition temperature flame-retardant PBT/PC alloy material and preparation method thereof, the raw material that this alloy material comprises following weight percent: 40 ~ 60% polybutylene terephthalate, 20 ~ 30% Halogen nitrogen phosphorus flame retardant, 3 ~ 10% compatilizer, 1 ~ 5% Halogen auxiliary flame retardant, 0.1 ~ 0.5% oxidation inhibitor, 0.1 ~ 0.5% lubricant.Invention provides material to have the mechanical property of No. zero, and flame retardant properties is good, also has high glowing filament ignition temperature.
Chinese patent CN101735515A discloses the other polypropylene material of a kind of high-luster weather-resistance flame-retardant V 0-stage, comprise polypropylene, fire retardant, fire retarding synergist, also comprise one or more in weather resisting agent, oxidation inhibitor and the agent of anti-copper evil, its advantage is, can make good fluidity, high luster materials, and there is good flame retardant effect.
The weak point that above prior art all has is, high glowing filament ignition temperature is lower, and its persistence auxiliary material poor or that add is not suitable in polypropylene material.
Summary of the invention
The invention discloses a kind of have high heat resistance, good folding property and good flame retardant properties, can meet glow wire ignition temperature (GWIT) higher than a kind of polypropylene flame redardant high performance composite of 750 ℃ of requirements.
A flame-proof polypropelene composition with high glow-wire ignition temperature, percentage ratio comprises following component by weight:
Polypropylene 35.0～66.5%
Bromide fire retardant 15.0～20.0%
Fire retarding synergist 3.0～8.0%
High-efficiency compound fire-proof agent 15.0 ~ 35.0%
Primary antioxidant 0.1～0.5%
Auxiliary antioxidant 0.1～0.5%
Processing aid 0.3～1.0%
Described bromide fire retardant can be the fire retardants such as TDE, decabromodiphenyl oxide, brominated styrene, the preferred TDE of this patent bromide fire retardant.
Described fire retarding synergist is antimonous oxide, antimony peroxide, antimonous oxide and zinc borate, the preferred antimonous oxide of this patent.
The nitrogen phosphorus flame retardant that described high-efficiency compound fire-proof agent comprises weight 15.0～45.0%, 40.0～60.0% mineral toughener and 15.0～30.0% silicon are modifier.
Described nitrogen phosphorus flame retardant can be melamine polyphosphate (MPP), the polyphosphazene polymer ammonium phosphate (APP) that molecular weight is greater than 1500, microcapsule coated red phosphorus combustion inhibitor and microcapsule melamine cyanurate (MCA), nitrogen phosphorus flame retardant particle diameter is 0.1 μ m ~ 100 μ m, and preferably median size is 0.1 ~ 7.0 μ m.The preferred microcapsule coated particle diameter of this patent is 1.0 ~ 6.0 μ m melamine cyanurates.
Described mineral toughener can be particle diameter (D
50) superfine talcum powder of 1.0 ~ 4.0 μ m, through surface treatment particle diameter (D
50) the precipitation super fine magnesium hydroxide of 1.0 ~ 3.0 μ m or aluminium hydroxide, magnesium salt whisker, 2000 ~ 3000 order kaolin and wollastonites.This patent is preferably through surface treatment particle diameter (D
50) the precipitation super fine magnesium hydroxide of 1.0 ~ 3.0 μ m.
Described silicon is that modifier can be organo-siloxane, as silicone resin, and silicon rubber; Silicon heterogeneous chain polymer is as organosilazanes, the organosiloxane polymer of the preferred high-polymerization degree of this patent.
Described primary antioxidant can be four [methyl-(3,5-di-t-butyl-4 – hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), antioxidant 3114,1,3,5-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) tricarbimide (antioxidant 3114), 1,3,5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazine-2,4,6-(1H, 3H, 5H) a kind of in-triketone (oxidation inhibitor 1790).The preferred antioxidant 1010 of this patent primary antioxidant.
Described auxiliary antioxidant can be one or both in tricresyl phosphite (2,4-di-tert-butyl-phenyl) ester (irgasfos 168), two (2.4-di-tert-butyl-phenyl) pentaerythritol diphosphites (oxidation inhibitor 627A), thio-2 acid 2 stearyl ester (oxidation inhibitor PS802).The preferred irgasfos 168 of this patent auxiliary antioxidant.
The described preparation method with the flame-proof polypropelene composition of high glow-wire ignition temperature, comprises the steps:
(1) high-efficiency compound fire-proof agent preparation: the nitrogen phosphorus flame retardant that is 15.0～45.0% by weight percent, 40.0～60.0% mineral toughener and 15.0～30.0% silicon are that each component of modifier is prepared burden in proportion, then mix in high-speed mixer 1～3 minute;
(2) polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Compared with prior art, the advantage that the present invention has is as follows:
A) described composite flame-retardant agent can produce microcapsule coated effect around at it, by selecting microcapsule coated melamine cyanurate, can produce in glowing filament heat-processed the non-flammable gases such as nitrogen, water, and play incarbonization, by blocking oxygen, take away heat, reduce thermal conduction;
B) preferably through surface treatment particle diameter (D
50) the precipitation super fine magnesium hydroxide of 1.0 ~ 3.0 μ m, can produce metal oxide reduction thermal conduction in glowing filament heat-processed, produce aqueous vapor simultaneously and can take away heat, surface treatment precipitation super fine magnesium hydroxide is less to flame retardation modification polypropylene compound composition Effect on Mechanical Properties;
C) preferably the organosiloxane polymer of high-polymerization degree can form silicon carbide gel sealing coat, and starvation, reaches flame retardant effect.By above several mode Integrated usings, can greatly improve the ignition temperature (GWIT) of anti-flaming polypropylene material, thereby reach GWIT higher than 750 ℃ of requirements, make anti-flaming polypropylene material meet the field widespread uses such as wide electronic apparatus, mechanical industry.
Described have a high glow-wire ignition temperature flame-proof polypropelene composition, be mainly used in various electronic devices and components, described electrical equipment is because electric effect possibility long-term exposure is under thermal stresses, thereby may worsen reduction device security performance, at device interior, easily make the insulating material of propagation of flame or the electric and electronic product of other solid combustible material, element and household electrical appliance parts.
Embodiment
The component of using in embodiment and comparative example: TDE fire retardant, modification precipitated magnesium hydroxide; Melamine cyanurate trimeric cyanamide, symmetric form alkyl polyphenol antioxidant; Phosphorous acid esters auxiliary antioxidant.
Embodiment mono-
(1) prepare high-efficiency compound fire-proof agent: by weight percentage by nitrogen phosphorus flame retardant, mineral toughener and silicon be each component of modifier in table 1 ratio batching, then in high-speed mixer, mix 1～3 minute;
(2) by weight percentage polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Embodiment bis-
(1) prepare high-efficiency compound fire-proof agent: by weight percentage by nitrogen phosphorus flame retardant, mineral toughener and silicon be each component of modifier in table 1 ratio batching, then in high-speed mixer, mix 1～3 minute;
(2) by weight percentage polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Embodiment tri-
(1) prepare high-efficiency compound fire-proof agent: by weight percentage by nitrogen phosphorus flame retardant, mineral toughener and silicon be each component of modifier in table 1 ratio batching, then in high-speed mixer, mix 1～3 minute;
(2) by weight percentage polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Embodiment tetra-
(1) prepare high-efficiency compound fire-proof agent: by weight percentage by nitrogen phosphorus flame retardant, mineral toughener and silicon be each component of modifier in table 1 ratio batching, then in high-speed mixer, mix 1～3 minute;
(2) by weight percentage polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Embodiment five
(1) prepare high-efficiency compound fire-proof agent: by weight percentage by nitrogen phosphorus flame retardant, mineral toughener and silicon be each component of modifier in table 1 ratio batching, then in high-speed mixer, mix 1～3 minute;
(2) by weight percentage polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Comparative example six
(1) each component is prepared burden in proportion, then in high-speed mixer, mix 1～3 minute; (2) adopt twin screw extruder to carry out melt blending in mixed mixture, temperature is controlled at 180～200 ℃, and screw speed is 200～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Comparative example seven
(1) each component is prepared burden in table 1 ratio, then in high-speed mixer, mix 1～3 minute; (2) adopt twin screw extruder to carry out melt blending in mixed mixture, temperature is controlled at 180～200 ℃, and screw speed is 200～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Comparative example eight
(1) each component is prepared burden in table 1 ratio, then in high-speed mixer, mix 1～3 minute; (2) adopt twin screw extruder to carry out melt blending in mixed mixture, temperature is controlled at 180～200 ℃, and screw speed is 200～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
table 1 embodiment and comparative example 1-8 formula (material proportion: weight percent)
| Material component | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| Acrylic resin | 61.25 | 55.25 | 50.25 | 46.25 | 52.25 | 61.25 | 55.25 | 49.25 |
| Bromide fire retardant | 14.00 | 18.00 | 18.00 | 18.00 | 14.00 | 14.00 | 18.00 | 18.00 |
| Antimonous oxide | 4.00 | 6.00 | 6.00 | 6.00 | 4.00 | 4.00 | 6.00 | 6.00 |
| Talcum powder 1250 orders | / | / | / | / | / | 20.00 | 20.00 | 20.00 |
| High-efficiency compound fire-proof agent MAGNIFIN H 5 HV | 20.00 | 20.00 | 20.00 | 20.00 | 20.00 | / | / | / |
| High-efficiency compound fire-proof agent Melapur MC 25 | / | / | 5.00 | 5.00 | 5.00 | / | / | 6.00 |
| High-efficiency compound fire-proof agent DOW CORNING 4-7105 | / | / | / | 4.00 | 4.00 | / | / | / |
| Primary antioxidant | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| Auxiliary antioxidant | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 | 0.30 |
| Processing aid | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
the performance test of table 2: embodiment and comparative example
| Performance test | 1# | 2# | 3# | 4# | 5# | 6# | 7# | 8# |
| Flame retardant properties | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-2 | V-0 |
| Glow wire ignition index (GWIT, 1.00mm) (℃) | 700 | 700 | 725 | 750 | 725 | 650 | 700 | 675 |
| Glow wire ignition index (GWIT, 2.00mm) (℃) | 725 | 725 | 750 | 775 | 750 | 675 | 700 | 725 |
| Glow wire ignition index (GWIT, 3.00mm) (℃) | 700 | 700 | 725 | 750 | 750 | 675 | 675 | 700 |
| Glow wire ignition index (GWIT, 2.00mm) (℃) | 960 | 960 | 960 | 960 | 960 | 960 | 960 | 960 |
In embodiment and comparative example, its testing standard is respectively, flame retardant properties adopts UL94, glow wire ignition index is IEC60695-2-13, from above test result, can find out, with respect to the data in comparative example, add each measurement result in the embodiment after each based flame retardant and fire retarding synergist all higher than the data in comparative example, show that it has good anti-scorching hot effect.
Claims (10)
1. a flame-proof polypropelene composition with high glow-wire ignition temperature, is characterized in that comprising following component, and each component weight percentage is:
Polypropylene 35.0～66.5%
Bromide fire retardant 15.0～20.0%
Fire retarding synergist 3.0～8.0%
High-efficiency compound fire-proof agent 15.0～35.0%
Primary antioxidant 0.1～0.5%
Auxiliary antioxidant 0.1～0.5%
Processing aid 0.3～1.0%
Described high-efficiency compound fire-proof agent is that modifier forms by 15.0～45.0% nitrogen phosphorus flame retardant, 40.0～60.0% mineral toughener and 15.0～30.0% silicon.
2. have according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that, described bromide fire retardant is TDE, decabromodiphenyl oxide or brominated styrene fire retardant.
3. have according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that, described fire retarding synergist is antimonous oxide, antimony peroxide and zinc borate.
4. there is according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that: described nitrogen phosphorus flame retardant is melamine polyphosphate, the polyphosphazene polymer ammonium phosphate that molecular weight is greater than 1500, microencapsulated red phosphorus flame retardant or microcapsule melamine cyanurate.
5. there is according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that: described mineral toughener is the superfine talcum powder that particle diameter is less than 4 microns surface treated precipitation super fine magnesium hydroxide or aluminium hydroxide, magnesium salt whisker, 2000 ~ 3000 order kaolin and wollastonites.
6. there is according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that: described silicon is that modifier is organo-siloxane or silicon heterogeneous chain polymer.
7. there is according to claim 6 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that: described organo-siloxane is silicone resin or silicon rubber; Described silicon heterogeneous chain polymer is organosilazanes.
8. have according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that, described primary antioxidant is four [methyl-(3,5-di-t-butyl-4 – hydroxy phenyl) propionic acid] pentaerythritol ester, 1,3,5-tri-(3,5-di-tert-butyl-4-hydroxyl benzyl) tricarbimide, 1,3,5-tri-(the 4-tertiary butyl-3-hydroxyl-2,6-dimethyl benzyl)-1,3,5-triazines-2,4, one or more in 6-(1H, 3H, 5H)-triketone.
9. there is according to claim 1 the flame-proof polypropelene composition of high glow-wire ignition temperature, it is characterized in that, described auxiliary antioxidant is tricresyl phosphite (2,4-di-tert-butyl-phenyl) one or both in ester, two (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites, thio-2 acid 2 stearyl ester.
10. described in preparation claim 1-5 any one, there is the method for the flame-proof polypropelene composition of high glow-wire ignition temperature, comprise the steps:
(1) high-efficiency compound fire-proof agent preparation: each component that is modifier by the silicon of the nitrogen phosphorus flame retardant of weight 15.0～45.0%, 40.0～60.0% mineral toughener and 15.0～30.0% is prepared burden in proportion, then mixes in high-speed mixer 1～3 minute;
(2) polypropylene, bromide fire retardant, fire retarding synergist, high-efficiency compound fire-proof agent, primary antioxidant, auxiliary antioxidant and processing aid are mixed in proportion;
(3) adopt twin screw extruder to carry out melt blending, temperature is controlled at 180～200 ℃, and screw speed is 100～300r/min, by screw rod shearing, mixing each component that makes, mixes, and then carries out granulation, dry making.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426731.9A CN102558674B (en) | 2011-12-19 | 2011-12-19 | Flame-retardant polypropylene composition with high glow-wire ignition temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110426731.9A CN102558674B (en) | 2011-12-19 | 2011-12-19 | Flame-retardant polypropylene composition with high glow-wire ignition temperature |
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| Publication Number | Publication Date |
|---|---|
| CN102558674A CN102558674A (en) | 2012-07-11 |
| CN102558674B true CN102558674B (en) | 2014-02-19 |
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| CN110499031A (en) * | 2019-08-15 | 2019-11-26 | 东莞市宏泰基阻燃材料有限公司 | A kind of fire retardant and preparation method and application |
| CN112063045B (en) * | 2020-08-25 | 2022-11-04 | 上海日之升科技有限公司 | Low-odor high-glowing filament flame-retardant polypropylene alloy composition in high-temperature environment |
| CN114350067B (en) * | 2021-12-27 | 2023-09-12 | 国高材高分子材料产业创新中心有限公司 | Polypropylene substrate combustion standard sample and preparation method thereof |
| CN114736453B (en) * | 2022-03-14 | 2023-09-26 | 金发科技股份有限公司 | Low-halogen flame-retardant PP material and preparation method and application thereof |
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Effective date of registration: 20160205 Address after: Ke Feng Lu Science City high tech Industrial Development Zone of Guangzhou City, Guangdong Province, No. 33 510663 Patentee after: Kingfa Technology Co., Ltd. Patentee after: Shanghai Kingfa Science and Technology Development Co., Ltd. Patentee after: SICHUAN KINGFA TECHNOLOGY DEVELOPMENT CO., LTD. Address before: Ke Feng Lu Science City high tech Industrial Development Zone of Guangzhou City, Guangdong Province, No. 33 510663 Patentee before: Kingfa Technology Co., Ltd. Patentee before: Shanghai Kingfa Science and Technology Development Co., Ltd. Patentee before: Mianyang Dongfang Special Engineering Plastic Co., Ltd. |