CN107434878A - A kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material and preparation method - Google Patents

A kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material and preparation method Download PDF

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CN107434878A
CN107434878A CN201710709168.3A CN201710709168A CN107434878A CN 107434878 A CN107434878 A CN 107434878A CN 201710709168 A CN201710709168 A CN 201710709168A CN 107434878 A CN107434878 A CN 107434878A
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composite material
water boiling
boiling resistance
wire
retardant
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CN107434878B (en
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吕志勇
邢纪普
任东方
李荣群
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HEFEI ORINKO PLASTICS GROUP CO Ltd
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HEFEI ORINKO PLASTICS GROUP CO Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions 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
    • C08L23/10Homopolymers or copolymers of propene
    • C08L23/12Polypropene
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/32Phosphorus-containing compounds
    • C08K2003/321Phosphates
    • C08K2003/322Ammonium phosphate
    • C08K2003/323Ammonium polyphosphate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The present invention provides a kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material and preparation method, and high glow-wire, water boiling resistance flame-retardant polypropylene composite material are made up of 72 76 parts of PP resins, 24 28 parts of nitrogen phosphorus expanding fire retardant, 0.1 0.2 parts of anti-dripping agent, 0.2 0.3 parts of antioxidant, 0.4 0.6 parts of lubricant, 0.1 0.2 parts of efficient synergist.Flame-retardant polypropylene composite material made from the inventive method, while ensureing that material can reach highly effective flame-retardant by UL94 1.6mm V0 tests, possessing has high glow-wire(875 DEG C, GWIT), water boiling resistance(100℃), it is resistance to separate out, low cigarette and thermo oxidative aging discoloration(150℃)Performance.

Description

A kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material and preparation method
Technical field
The present invention relates to technical field of macromolecules, and in particular to a kind of high glow-wire, water boiling resistance polypropylene flame redardant composite wood Material and preparation method.
Background technology
Pp material abundance, cheap, easily processed into type, product high comprehensive performance, are widely used in The industries such as automobile, household electrical appliances, electronic apparatus, it has also become kind with fastest developing speed in resins for universal use.But polypropylene belongs to inflammable in itself Material, its oxygen index (OI) only 17.4~18.5%, and charring rate is low, molten drop is produced during burning, easy propagating flame causes fire. With developing rapidly for social economy, polyacrylic application is more deep, and polypropylene flame redardant has obtained great development, especially In fields such as electrotechnical, electronic, low-voltage electrical apparatuses, polypropylene flame redardant is no longer only limitted to flame retardant rating in itself, but has more strict severe The requirement at quarter, to prevent electric component, part from being ignited under failure or overload condition peripheral parts, particularly high-power electric appliance Such as:Socket, warm-air drier etc., usage safety performance is the most concerned problem of people, therefore the exploitation of high glow-wire material seems outstanding To be important, the BACN of 21 century must would is that Halogen, efficient, low cigarette, low toxicity, multi-functional composite fire retardant.
And during material use, conventional fire retardant easily occurs under the stringent environmentals such as high temperature, high humidity Precipitation phenomenon, fire retardant separate out the normal work for not only influenceing electric elements, it is often more important that material fire resistance in itself, burn Heated filament initiation temperature all can have a greatly reduced quality or even lose.Therefore, for applied to the polypropylene flame redardant electricity under special high-end environment Device element, environment are more special, it is desirable to which also stricter, the performance requirement such as high glow-wire, resistance to precipitation to polypropylene flame redardant is also higher.
The content of the invention
To overcome common polypropylene flame redardant glowing filament ignition temperature low, the problems such as easily precipitation in certain circumstances, The invention discloses a kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material and preparation method.
High glow-wire, water boiling resistance flame-retardant polypropylene composite material made from the inventive method, by using the expansion of autogamy Type fire retardant, while fire-retardant char yield is improved, high glow-wire grade (875 DEG C, GWIT) on the one hand can be obtained, it is another Aspect efficiently solves the precipitation serious problems during fire retardant use.
The technical scheme is that:A kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material, are pressed by following raw materials according Parts by weight form:
Further, described polypropylene is at least one of isotactic polypropylene, syndiotactic polypropylene, random polypropylene.
Further, described fire retardant is nitrogen phosphorus expanding fire retardant, according to APP (APP):Triazines are into charcoal Agent is with mass ratio 5:1 compounding.
Further, described antioxidant is at least one of Hinered phenols, thio esters, phosphite ester kind antioxidant.
Further, described Hinered phenols are four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, Thio esters are thio-2 acid 2 stearyl ester, and phosphorous acid esters are phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
Further, it is double stearic to be selected from Tissuemat E, stearate, ethylene bis stearamide, grafting ethylene for the lubricant At least one of acid amides.
Further, the anti-dripping agent is pure powder type 100%PTFE.
Further, the efficiently synergist is octaphenyl cage modle polysilsesquioxane.
Fire retardant is voluntarily compounds in the present invention, according to APP (APP):Triazines carbon forming agent is with 5:1 compounding forms, Do not sell in the market.
It is a further object to provide the preparation of above-mentioned high glow-wire, water boiling resistance flame-retardant polypropylene composite material Method, comprise the following steps:
(1) polypropylene, fire retardant, anti-dripping agent, antioxidant, lubricant, efficient synergist are weighed by proportioning, added together It is connected with the mixer high speed mixing 2-10 minutes of inert gas shielding;
(2) under inert gas shielding, will be melted in mixed material input parallel double-screw extruder made from step (1) Melt, high glow-wire, water boiling resistance flame-retardant polypropylene composite material are made after granulation.
Preferably, the barrel zone temperature of extruder be 180-110 DEG C, screw speed 400-500r/min, vacuum for- 0.04~-0.1MPa.
High glow-wire, the water boiling resistance flame-retardant polypropylene composite material of the present invention has following beneficial to effect relative to prior art Fruit:
1st, flame retarding efficiency is high:The halogen-free flame retardants that the present invention is formed using APP with triazines carbon forming agent compounding, tool Have significantly fast into charcoal speed, expand the features such as rapid, on the one hand, APP thermally decomposed caused by ammonia and vapor The concentration of fuel gas can be diluted, on the other hand, phosphorus oxygen free radical caused by APP decomposition can block looping combustion Reaction, so as to reduce combustion heat release amount so that material can easily reach UL 14-1.6mm V0 requirement.In polyphosphoric acid Ammonium:Triazines carbon forming agent is with mass ratio 5:During 1 compounding, glowing filament, water boiling resistance performance and the thermo oxidative aging discoloration of material It is optimal, and can ensures that material mechanical performance is unaffected.Si-O alternately connects in octaphenyl cage modle polysilsesquioxane The inorganic kernel of the silica skeleton composition connect, can suppress the chain movement of polymer molecule and assign hybrid material good thermostabilization Property, mechanical property and anti-flammability.Si-O bond energys are 445.2KJ/mol, and C-C bond energys are 350.7KJ/mol by contrast, C-O keys Can be 351.1KJ/mol, energy needed for the key destroyed in POSS kernels is larger.
2nd, high glow-wire:Flame-retardant system of the present invention can promote expansion in the moment of 850 DEG C of glowing filament contacts Into charcoal, by caused gas rapid dilution ambient oxygen concentration, the carbon-coating at the same time expanded can be covered in contact in time Near point, reaching prevents from contacting purpose on fire.
3rd, thermo oxidative aging changes colour:Material discoloration is the characteristics of aging is most obvious, and APP is answered with triazines carbon forming agent With into halogen-free flame retardants possess and have extremely strong heat-resistant quality so that material remains able under lasting high temperature thermal oxidation aging Outstanding heat endurance is kept, is unlikely to influence the flame-retarding characteristic of material.
4th, resistance to precipitation:PP is hemicrystalline material, has relatively low glass transition temperature, when environment temperature is higher than its glass During glass transition temperature, with the rise of temperature, amorphous segment warm-up movement will be accelerated so that poor with PP resin compatibles Small molecule fire retardant can be relatively easy to and overcome resistance to move to surface.Triazines carbon forming agent is by introducing highly polar group Amido, fire retardant and PP interface interactions are enhanced, fire retardant is effectively reduced under hot and humid environment and separates out problem.
Brief description of the drawings
Fig. 1 is embodiment 3,875 DEG C of GWIT glowing filaments contact ignition test chart of comparative example 1 and 2;
Fig. 2 is that the boiling of embodiment 3, comparative example 1 and 2 separates out test (100 DEG C, 4h) result figure;
Fig. 3 is that embodiment 3, the thermo oxidative aging of comparative example 1 and 2 test (on) afterwards (under) result figure before (150 DEG C, 4d);
Wherein, a- embodiments 3, b- comparative examples 1, c- comparative examples 2.
Embodiment
To be best understood from the present invention, with reference to embodiment, the invention will be further described, and following examples are only pair The present invention illustrates rather than it is limited.
Embodiment 1:
High glow-wire, water boiling resistance flame-retardant polypropylene composite material in the present embodiment are by following raw materials according group by weight Into:
Specific preparation method comprises the following steps:
(1) by 72 parts of isotactic HOPPs, 28 parts of autogamy expanding halide-free fire-retardants (23.3 parts of APPs and 4.7 Part triazines carbon forming agent), 0.1 part of PTFE anti-dripping agent, 0.1 part of Hinered phenols antioxidant, 0.1 part of phosphite kind antioxidant, 0.2 part of PE wax, 0.2 part of bright lubricant, 0.1 part of octaphenyl cage modle polysilsesquioxane add the mixer for being connected with nitrogen protection High speed mixes 10 minutes;
(2) under nitrogen protection, (1) mixed material is put into parallel double-screw extruder and melted, extruded, granulation, Reinforced polypropylene compound material is made;Wherein each barrel zone temperature of extruder is 180-110 DEG C, screw speed 450r/min, Vacuum is -0.04MPa, that is, high glow-wire, water boiling resistance flame-retardant polypropylene composite material is made.
Embodiment 2:
High glow-wire, water boiling resistance flame-retardant polypropylene composite material in the present embodiment are by following raw materials according group by weight Into:
Specific preparation method comprises the following steps:
(1) by 50 parts of isotactic HOPPs, 25 parts of atactic copolymerized polypropenes, 25 parts of autogamy expanding halide-free fire-retardants (20.8 parts of APPs and 4.2 parts of triazines carbon forming agents), 0.15 part of PTFE anti-dripping agent, 0.15 part of Hinered phenols antioxidant, 0.1 part of phosphite kind antioxidant, 0.25 part of PE wax, 0.25 part of bright lubricant, 0.15 part of poly- silsesquioxane of octaphenyl cage modle The mixer high speed that alkane addition is connected with nitrogen protection mixes 10 minutes;
(2) under nitrogen protection, (1) mixed material is put into parallel double-screw extruder and melted, extruded, granulation, Reinforced polypropylene compound material is made;Wherein the barrel zone temperature of extruder is 180-110 DEG C, screw speed 450r/min, very Reciprocal of duty cycle is -0.04MPa, that is, high glow-wire, water boiling resistance flame-retardant polypropylene composite material is made.
Embodiment 3:
High glow-wire, water boiling resistance flame-retardant polypropylene composite material in the present embodiment are by following raw materials according group by weight Into wherein APP (APP):Triazines carbon forming agent is with mass ratio 5:1 compounding:
Specific preparation method comprises the following steps:
(1) 20 parts of APPs and 4 parts of triazines carbon forming agents are added to height and stir machine high speed stirring 5min.
(2) by above-mentioned 24 parts of compounds, 76 parts of isotactic HOPPs, 0.2 part of PTFE anti-dripping agent, 0.15 part of hindered phenol Kind antioxidant, 0.15 part of phosphite kind antioxidant, 0.3 part of PE wax, 0.3 part of bright lubricant, poly- times of 0.2 part of octaphenyl cage modle The mixer high speed that the addition of half siloxanes is connected with nitrogen protection mixes 10 minutes;
(3) under nitrogen protection, (2) mixed material is put into parallel double-screw extruder and melted, extruded, granulation, Reinforced polypropylene compound material is made;Wherein the barrel zone temperature of extruder is 180-110 DEG C, screw speed 450r/min, very Reciprocal of duty cycle is -0.04MPa, that is, high glow-wire, water boiling resistance flame-retardant polypropylene composite material is made.
Comparative example 1:
PP composite material in this comparative example is made up of by weight following raw materials according, wherein APP (APP): Triazines carbon forming agent is with mass ratio 4:1 compounding:
Specific preparation method comprises the following steps:
(1) 11.2 parts of APPs and 4.8 parts of triazines carbon forming agents are added to height and stir machine high speed stirring 5min.
(2) by above-mentioned 24 parts of compounds, 76 parts of isotactic HOPPs, 0.2 part of PTFE anti-dripping agent, 0.15 part of hindered phenol Kind antioxidant, 0.15 part of phosphite kind antioxidant, 0.3 part of PE wax, 0.3 part of bright lubricant, poly- times of 0.2 part of octaphenyl cage modle The mixer high speed that the addition of half siloxanes is connected with nitrogen protection mixes 10 minutes;
(3) under nitrogen protection, (2) mixed material is put into parallel double-screw extruder and melted, extruded, granulation, Reinforced polypropylene compound material is made;Wherein the barrel zone temperature of extruder is 180-110 DEG C, screw speed 450r/min, very Reciprocal of duty cycle is -0.04MPa, that is, high glow-wire, water boiling resistance flame-retardant polypropylene composite material is made.
Comparative example 2:
PP composite material in this comparative example is made up of by weight following raw materials according, wherein APP (APP): Triazines carbon forming agent is with mass ratio 6:1 compounding:
Specific preparation method comprises the following steps:
(1) 20.5 parts of APPs and 3.5 parts of triazines carbon forming agents are added to height and stir machine high speed stirring 5min.
(2) by above-mentioned 24 parts of compounds, 76 parts of isotactic HOPPs, 0.2 part of PTFE anti-dripping agent, 0.15 part of hindered phenol Kind antioxidant, 0.15 part of phosphite kind antioxidant, 0.3 part of PE wax, 0.3 part of bright lubricant, poly- times of 0.2 part of octaphenyl cage modle The mixer high speed that the addition of half siloxanes is connected with nitrogen protection mixes 10 minutes;
(3) under nitrogen protection, (2) mixed material is put into parallel double-screw extruder and melted, extruded, granulation, Reinforced polypropylene compound material is made;Wherein the barrel zone temperature of extruder is 180-110 DEG C, screw speed 450r/min, very Reciprocal of duty cycle is -0.04MPa, that is, high glow-wire, water boiling resistance flame-retardant polypropylene composite material is made.
By high glow-wire, water boiling resistance flame-retardant polypropylene composite material and common halogen-free flameproof made from above-described embodiment 1-3 Polypropylene is according to coherent detection standard testing its tensile strength, elongation at break, bending strength, bending modulus, cantilever beam breach Impact strength, fire resistance, glowing filament, water boiling resistance performance, thermo oxidative aging discoloration, its examination criteria and testing result are such as Shown in table 1 below:
Table 1:Embodiment 1-3 high glow-wire, water boiling resistance flame-retardant polypropylene composite material and common halogen-free polypropylene flame redardant Main physical index
The high glow-wire of the invention prepared, water boiling resistance flame-retardant polypropylene composite material are with Polypropylene copolymer as can be seen from Table 1 Thing be base material under nitrogen protection, by reactive extrursion, obtained composite rigidity and toughness realize well balanced, are protecting While demonstrate,proving mechanical strength, compound flame retardant high glow-wire, water boiling resistance, low precipitation, thermo oxidative aging discolouration have been given full play to Can, existing bittern-free flame-proof material can be substituted, meets contemporary electronic electrical equipment halogen-free polypropylene flame redardant under the environment such as hot and humid Requirement.
By high glow-wire, water boiling resistance flame-retardant polypropylene composite material and comparative example 1-2 made from above-described embodiment 3 according to phase Close examination criteria and test its glowing filament, water boiling resistance performance, thermo oxidative aging discoloration, its testing result is as shown in Figures 1 to 3:
As seen from Figure 1, at APP (APP):Triazines carbon forming agent is with mass ratio 5:During 1 compounding, it can reach 875 DEG C of GWIT contacts of glowing filament are completely nonflammable, and the flames of anger produces after glowing filament leaves.As seen from Figure 2 in poly- phosphorus Sour ammonium (APP):Triazines carbon forming agent is with mass ratio 5:During 1 compounding, the resistance to precipitation of boiling of material is significantly better than mass ratio 4:1 and 6: 1 formula (having different degrees of precipitation).As seen from Figure 3 at APP (APP):Triazines carbon forming agent is with mass ratio 5:1 During compounding, the thermo oxidative aging discoloration of material is most excellent, and chromatic aberration is substantially less than mass ratio 4:1 and 6:1 formula (is deposited In obvious yellowing).
It is comprehensive to can be seen that high glow-wire, water boiling resistance flame-retardant polypropylene composite material prepared by the present invention in poly- phosphorus from Fig. 1-3 Sour ammonium (APP):Triazines carbon forming agent is with mass ratio 5:During 1 compounding, glowing filament, water boiling resistance performance and the thermo oxidative aging of material become Color performance is optimal, and can ensure that material mechanical performance is unaffected.
Such as in addition UV absorbers, light stabilizer, antistatic additive, the colouring agent function in preparing component of the present invention Auxiliary agent, make composite that there are individual features also to be protected by the present invention.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein General Principle is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to implementation here Example, for those skilled in the art according to the announcement of the present invention, not departing from improvement that scope made and modification all should be Within protection scope of the present invention.

Claims (10)

1. a kind of high glow-wire, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:By following raw materials according group by weight Into:
Polypropylene 72-76 parts,
Fire retardant 24-28 parts,
Antioxidant 0.2-0.3 parts,
Lubricant 0.4-0.6 parts,
Anti-dripping agent 0.1-0.2 parts,
Efficient synergist 0.1-0.2 parts.
2. high glow-wire according to claim 1, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:Described Polypropylene is at least one of isotactic polypropylene, syndiotactic polypropylene, random polypropylene.
3. high glow-wire, water boiling resistance flame-retardant polypropylene composite material according to claim 1, it is characterised in that:It is described Fire retardant be nitrogen phosphorus expanding fire retardant, according to APP:Triazines carbon forming agent is with mass ratio 5:1 compounding.
4. high glow-wire according to claim 1, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:Described Antioxidant is at least one of Hinered phenols, thio esters, phosphite ester kind antioxidant.
5. high glow-wire according to claim 4, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:Described Hinered phenols antioxidant be four [β-(3,5- di-tert-butyl-hydroxy phenyls)Propionic acid] pentaerythritol ester, monothioester kind antioxidant For thio-2 acid 2 stearyl ester, phosphite ester kind antioxidant is phosphorous acid three (2,4- di-tert-butyl-phenyl) ester.
6. high glow-wire according to claim 1, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:The profit Lubrication prescription is selected from least one of Tissuemat E, stearate, ethylene bis stearamide, grafting ethylene bis stearamide.
7. high glow-wire according to claim 1, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:It is described anti- Dripping agent is pure powder type 100%PTFE anti-dripping agents.
8. high glow-wire according to claim 1, water boiling resistance flame-retardant polypropylene composite material, it is characterised in that:The height Effect synergist is octaphenyl cage modle polysilsesquioxane.
9. a kind of prepare high glow-wire as claimed in claim 1, the method for water boiling resistance flame-retardant polypropylene composite material, its feature It is:Comprise the following steps:
(1) polypropylene, fire retardant, anti-dripping agent, antioxidant, lubricant, efficient synergist are weighed by proportioning, adds be connected with together The mixer high speed mixing 2-10 minutes of inert gas shielding;
(2) under inert gas shielding, by step(1)Melt, make in obtained mixed material input parallel double-screw extruder High glow-wire, water boiling resistance flame-retardant polypropylene composite material are made after grain.
10. the preparation method of high glow-wire according to claim 9, water boiling resistance flame-retardant polypropylene composite material, its feature It is:Step(2)The barrel zone temperature of the extruder be 180-190 DEG C, screw speed 400-500r/min, vacuum for- 0.04~-0.1MPa.
CN201710709168.3A 2017-08-17 2017-08-17 High glow wire, boiling-resistant and flame-retardant polypropylene composite material and preparation method thereof Active CN107434878B (en)

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CN109705462A (en) * 2018-12-25 2019-05-03 广东聚石化学股份有限公司 A kind of dedicated V0 grade halogen-free flame-retardant polypropylene material of extrusion plastic uptake and preparation method thereof
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CN111057316A (en) * 2019-12-23 2020-04-24 清远市普塞呋磷化学有限公司 Non-sticking ammonium polyphosphate flame-retardant modified polypropylene material and preparation method thereof
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CN108912405A (en) * 2018-04-25 2018-11-30 曾冬梅 A kind of sound insulation antibacterial polystyrene plates and preparation method
CN109233126A (en) * 2018-07-05 2019-01-18 何亚龙 A kind of flame-retardant expanded plate of polystyrene and preparation method
CN109705462A (en) * 2018-12-25 2019-05-03 广东聚石化学股份有限公司 A kind of dedicated V0 grade halogen-free flame-retardant polypropylene material of extrusion plastic uptake and preparation method thereof
CN109705462B (en) * 2018-12-25 2021-08-24 广东聚石化学股份有限公司 V0-grade halogen-free flame-retardant polypropylene material special for extrusion and plastic uptake and preparation method thereof
CN112011128A (en) * 2019-05-29 2020-12-01 合肥杰事杰新材料股份有限公司 Polypropylene hollow extrusion composite board and preparation method thereof
CN110372956A (en) * 2019-07-09 2019-10-25 广东奇德新材料股份有限公司 Halogen-free flame-retardant polypropylene compound with high glow wire
CN110372956B (en) * 2019-07-09 2022-05-13 广东奇德新材料股份有限公司 Halogen-free flame-retardant polypropylene composite with high glow wire
CN111057316A (en) * 2019-12-23 2020-04-24 清远市普塞呋磷化学有限公司 Non-sticking ammonium polyphosphate flame-retardant modified polypropylene material and preparation method thereof
CN111057316B (en) * 2019-12-23 2022-03-29 清远市普塞呋磷化学有限公司 Non-sticking ammonium polyphosphate flame-retardant modified polypropylene material and preparation method thereof
CN112321945A (en) * 2020-11-23 2021-02-05 江苏金发科技新材料有限公司 Precipitation-resistant halogen-free flame-retardant polypropylene composite material and preparation method thereof
CN112590051A (en) * 2020-12-27 2021-04-02 南京天诗新材料科技有限公司 Production method and device of polypropylene anti-dripping master batch
CN113817263A (en) * 2021-08-17 2021-12-21 金发科技股份有限公司 Halogen-free flame-retardant polypropylene composition and preparation method and application thereof

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