CN105778281A - High-glow-wire low-smoke flame-retardant polypropylene composite material and preparation method thereof - Google Patents
High-glow-wire low-smoke flame-retardant polypropylene composite material and preparation method thereof Download PDFInfo
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- CN105778281A CN105778281A CN201610152306.8A CN201610152306A CN105778281A CN 105778281 A CN105778281 A CN 105778281A CN 201610152306 A CN201610152306 A CN 201610152306A CN 105778281 A CN105778281 A CN 105778281A
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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
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C—CHEMISTRY; METALLURGY
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to a high-glow-wire low-smoke flame-retardant polypropylene composite material. The polypropylene composite material is prepared from, by weight, 100 parts of polypropylene, 5-10 parts of hypophosphite, 15-20 parts of melamine pyrophosphate, 1-3 parts of porous aluminum-silicone inorganic matter, 3-10 parts of maleic anhydride grafted polypropylene, 0.2-1.2 parts of antioxidant PS802, 0.2-1.0 part of lubricant 169/1010, 0.5-3.0 parts of lubricant SG200 and 5-10 parts of white oil. The polypropylene composite material has the advantages of high glow wire, high mechanical performance, low smoke generation, low hot bulb indentation, resistance to precipitation and excellent flame retardancy, is low in cost and has wide application prospect in the field of electronic devices, automobiles and household appliances.
Description
Technical field
The present invention relates to modified flame-retardant polypropylene material and preparation method thereof, specifically, be a kind of high scorching hot
Silk, low-smoke flame-retardant polypropylene alkene composite and preparation method thereof.
Background technology
Polypropylene obtains a wide range of applications due to excellent combination property.Polypropylene easy firing, the most fire-retardant poly-
The application of propylene has obtained large development.But it is as the raising of mankind's environmental consciousness and awareness of safety, special
It not that the requirement of the special characteristics to low-voltage electrical apparatus class material is more and more higher, particularly glowing filament, hot-bulb impression etc.
Characteristic.Glowing filament ignition temperature has reacted material combustion ignition, and hot-bulb impression reflects material at high temperature
Heat resistance, current anti-flaming polypropylene material glowing filament ignition temperature typically up at about 800 DEG C, hot-bulb
Impression 125 DEG C is less than 2mm.Along with awareness of safety and standard-required are more and more higher, therefore improve material standard
It is particularly important that research and development have high glow-wire, low hot-bulb impression, low-smoke flame-retardant polypropylene alkene composite.
Chinese patent literature 201110389540.X, applying date 2011-11-30, disclose a kind of high glow-wire
RPP material and preparation method thereof, described high glow-wire RPP material is by weight percentage
Composed of the following components: PP resin 20-40%；PP resin compatible agent 10-20%；Glass fibre 20-30%；
Fire retardant 20-30%；Coupling agent 0.3-0.8%；Antioxidant 0.2-0.6%；Lubricant 0.3-1.0%；Described
Fire retardant is magnesium hydroxide or aluminium hydroxide, and the test of this compound glowing filament is nonflammable up to 750 DEG C, along with
Deepening constantly of security appliance, market is the most harsh to the glowing filament performance requirement of such material, high at some
Quality appliance field even needs glowing filament to reach more than 850 DEG C not rise so, use this quasi-tradition magnesium hydroxide etc.
Filled-type halogen-free flame retardants cannot meet higher glowing filament performance requirement.Chinese patent
201310025500.6, the applying date: 2013-01-24, disclose a kind of nonflammable polypropylene of high glow-wire multiple
The weight portion of condensation material and the component of this material of production method and each component is polypropylene 100 parts, compounding resistance
Combustion agent 5～10 parts, wherein the weight portion of compound flame retardant component and component be radical initiator 5～10 parts,
Particle diameter is less than the milled glass fiber 100 parts of 2.86 μm, the hydrobromate fire retardant 35～70 of micro-glue parcel
Part, silicone polymer 10～30 parts, magnesium stearate 2～8 parts, this composite has high glow-wire (GWIT
>=775 DEG C), but this composite is for adding glass class composite, and used fire retardant is brominated
Fire retardant, is unsatisfactory for environmental requirement, and its application scenario is by a definite limitation.Chinese patent
201210509600.1, applying date 2012-12-04, disclose a kind of high CTI value, high GWIT value environmental protection
Flame-proof glass fibre strengthens PP material and preparation method thereof, and this composite uses Halogen and halogen-free flameproof compound ligand
System makes material glowing filament reach more than 800 DEG C, although the addition of phosphorus flame retardant decreases the use of halogenated flame retardant
Amount, improves the feature of environmental protection of material to a certain extent, but the halogen-free environmental that such material still cannot be real is wanted
Ask.It addition, current material under high glow-wire is tested generally individually with dense smoke, prior art improve fire-retardant
The severe compromise that dense smoke causes often is have ignored while performance.
Summary of the invention
It is an object of the invention to for deficiency of the prior art, it is provided that plant high glow-wire, low-smoke flame-retardant polypropylene
Alkene composite.
Another purpose of the present invention is to provide high glow-wire described above, low-smoke flame-retardant polypropylene alkene composite wood
The preparation method of material.
For achieving the above object, the present invention adopts the technical scheme that:
A kind of high glow-wire, low-smoke flame-retardant polypropylene alkene composite, described high glow-wire, low-smoke flame-retardant polypropylene
Alkene composite is prepared by the raw materials in: polypropylene 100 parts, hypophosphites 5-10 part, three
Poly cyanamid Quadrafos 15-20 part, porous aluminum silicon inorganic matter 1-3 part, maleic anhydride inoculated polypropylene 3-10
Part, antioxidant PS802 0.2-1.2 part, irgasfos 168/1010 0.2-1.0 part, lubricant SG200 0.5-3.0
Part, white oil 5-10 part.
Preferably, described high glow-wire, low-smoke flame-retardant polypropylene alkene composite are by the raw material system of following weight portion
Become: polypropylene 100 parts, hypophosphites 5-8 part, melamine polyphosphate 15-18 part, porous aluminum silicon
Inorganic matter 1-2 part, maleic anhydride inoculated polypropylene 3-7 part, antioxidant PS802 0.2-0.8 part, antioxidant
168/1010 0.2-0.6 part, lubricant SG200 0.5-1.5 part, white oil 5-7 part.
Preferably, described high glow-wire, low-smoke flame-retardant polypropylene alkene composite are by the raw material system of following weight portion
Become: polypropylene 100 parts, hypophosphites 8 parts, melamine polyphosphate 18 parts, porous aluminum silicon are inorganic
Thing 2 parts, maleic anhydride inoculated polypropylene 7 parts, antioxidant PS802 0.8 part, irgasfos 168/1,010 0.6
Part, lubricant SG200 1.5 parts, white oil 7 parts.
Preferably, described polyacrylic melt index is 15.0g/10min.
Preferably, described white oil is 26# industrial plastics processing oil.
Preferably, described porous aluminum silicon inorganic matter granularity is 2～3 μm, and specific surface area is 400～600m2/g。
Preferably, described hypophosphites is magnesium hypophosphite.
For realizing above-mentioned second purpose, the present invention adopts the technical scheme that:
Arbitrary described high glow-wire, the preparation method of low-smoke flame-retardant polypropylene alkene composite, including as follows
Step:
(1) weigh raw material by proportioning, take polypropylene and mix with white oil；
(2) by surplus stock and step 1) raw material prepared mixes；
(3) by step 2) raw material that mixes puts into dual-screw-stem machine extruding pelletization, turning of described dual-screw-stem machine
Speed is 200-300 rev/min, and temperature is 160-190 DEG C.
The invention has the advantages that:
1, the present invention is by compounding multiple halogen-free flame retardants, makes fire retardant produce carbon when composite burns
Layer isolation air also stops heat transfer and heat radiation, and the non-flammable gases that fire retardant decomposes release generation is the most permissible
Reach to completely cut off air effect.The present invention does not contains any Halogen system, for the halogen-free environmental material of real meaning.
2, the light lubricating oil fractions of 250～400 DEG C during the white oil used by the present invention is crude oil, through soda acid essence
Make, wash, be dried, bleaching earth adsorption, add the operations such as antioxidant and prepare；The present invention adds part white oil,
Can play the lubrication of excellence, promote fire retardant dispersiveness in resin, additionally adding part white oil can
Improve material thermal resistance.
3, by adding porous aluminum silicon materials in the present invention, the fire retardant that can play absorption small-molecular-weight reaches
Slow releasing function, it is to avoid small-molecule substance is too fast migrates to material surface, and additionally porous aluminum silicon materials are processed
Odor profiles gas that in journey, adsorbable material produces in process and non-flammable gases, can be by low composite wood
The non-flammable gases while material smell and discharging absorption when composite burns reaches to promote burning top layer
The effect of isolation.
4, the PP composite material of the present invention have high glow-wire (GWIT >=850 DEG C), strong mechanical performance,
Low-smoke, low hot-bulb impression (125 DEG C≤1.7mm), resistance to precipitation, the advantage of excellent fireproof performance, and
With low cost, have broad application prospects in fields such as electronic apparatus, automobile, household electrical appliances.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is expanded on further.Should be understood that these embodiments are only used for
The present invention is described rather than limits the scope of the present invention.In addition, it is to be understood that reading what the present invention recorded
After content, the present invention can be made various changes or modifications by those skilled in the art, and these equivalent form of values are same
Sample falls within the application appended claims limited range.
The preparation (one) of the PP composite material of embodiment 1 present invention
A kind of high glow-wire, low-smoke flame-retardant polypropylene alkene composite, be prepared by the raw materials in: poly-
Propylene 100 parts, magnesium hypophosphite 5 parts, melamine polyphosphate 15 parts, porous aluminum silicon inorganic matter 1 part,
Maleic anhydride inoculated polypropylene 3 parts, antioxidant PS802 0.2 part, irgasfos 168/1,010 0.2 part, profit
Lubrication prescription SG200 0.5 part, white oil 5 parts；Described polyacrylic melt index is 15.0g/10min, for
Raise sub-petrochemical industry S700；Described white oil is 26# industrial plastics processing oil；Described porous aluminum silicon inorganic matter
For having the material that a class contains microcellular structure, its granularity is 2 μm, specific surface area 600m2/g。
Preparation method is as follows: (1) weighs raw material by proportioning, takes polypropylene and mixes with white oil；(2) will
Surplus stock and step 1) raw material mix；(3) by step 2) raw material that mixes puts into twin-screw
Machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 200 revs/min, and temperature is 160 DEG C.
The preparation (two) of the PP composite material of embodiment 2 present invention
A kind of high glow-wire, low-smoke flame-retardant polypropylene alkene composite, be prepared by the raw materials in: poly-
Propylene 100 parts, magnesium hypophosphite 10 parts, melamine polyphosphate 20 parts, porous aluminum silicon inorganic matter 3
Part, maleic anhydride inoculated polypropylene 10 parts, antioxidant PS802 1.2 parts, irgasfos 168/1,010 1.0 part,
Lubricant SG200 3.0 parts, white oil 10 parts；Described polyacrylic melt index is 15.0g/10min,
For raising sub-petrochemical industry S700；Described white oil is 26# industrial plastics processing oil；Described porous aluminum silicon is inorganic
Thing is to have the material that a class contains microcellular structure, and its granularity is 3 μm, specific surface area 400m2/g。
Preparation method is as follows: (1) weighs raw material by proportioning, takes polypropylene and mixes with white oil；(2) will
Surplus stock and step 1) raw material mix；(3) by step 2) raw material that mixes puts into twin-screw
Machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 300 revs/min, and temperature is 190 DEG C.
The preparation (three) of the PP composite material of embodiment 3 present invention
A kind of high glow-wire, low-smoke flame-retardant polypropylene alkene composite, be prepared by the raw materials in: poly-
Propylene 100 parts, magnesium hypophosphite 8 parts, melamine polyphosphate 18 parts, porous aluminum silicon inorganic matter 2 parts,
Maleic anhydride inoculated polypropylene 7 parts, antioxidant PS802 0.8 part, irgasfos 168/1,010 0.6 part, profit
Lubrication prescription SG200 1.5 parts, white oil 7 parts；Described polyacrylic melt index is 15.0g/10min, for raising
Sub-petrochemical industry S700；Described white oil is 26# industrial plastics processing oil；Described porous aluminum silicon inorganic matter is
Having the material that a class contains microcellular structure, its granularity is 2 μm, specific surface area 600m2/g。
Preparation method is as follows: (1) weighs raw material by proportioning, takes polypropylene and mixes with white oil；(2) will
Surplus stock and step 1) raw material mix；(3) by step 2) raw material that mixes puts into twin-screw
Machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 250 revs/min, and temperature is 170 DEG C.
Comparative example 1
A kind of PP composite material, is prepared by the raw materials in: polypropylene 100 parts, hypophosphorous acid
5 parts of magnesium, melamine polyphosphate 15 parts, porous aluminum silicon inorganic matter 1 part, maleic anhydride grafting poly-third
3 parts of alkene, antioxidant PS802 0.2 part, irgasfos 168/1,010 0.2 part, lubricant SG200 0.5 part；
Described polyacrylic melt index is 15.0g/10min, for raising sub-petrochemical industry S700；Described porous aluminum silicon
Inorganic matter is to have the material that a class contains microcellular structure, and its granularity is 2 μm, specific surface area 600m2/g。
Preparation method is as follows: (1) weighs raw material by proportioning, mixes；(2) by step 2) mix
Dual-screw-stem machine extruding pelletization put into by raw material, and the rotating speed of described dual-screw-stem machine is 200 revs/min, and temperature is
160℃。
Comparative example 2
A kind of PP composite material, is prepared by the raw materials in: polypropylene 100 parts, hypophosphorous acid
5 parts of magnesium, melamine polyphosphate 15 parts, maleic anhydride inoculated polypropylene 3 parts, antioxidant PS802 0.2
Part, irgasfos 168/1,010 0.2 part, lubricant SG200 0.5 part, white oil 5 parts；Described polypropylene
Melt index be 15.0g/10min, for raising sub-petrochemical industry S700；Described white oil is 26# industrial plastics
Processing oil.
Preparation method is as follows: (1) weighs raw material by proportioning, takes polypropylene and mixes with white oil；(2) will
Surplus stock and step 1) raw material mix；(3) by step 2) raw material that mixes puts into twin-screw
Machine extruding pelletization, the rotating speed of described dual-screw-stem machine is 200 revs/min, and temperature is 160 DEG C.
Comparative example 3
A kind of PP composite material, is prepared by the raw materials in: polypropylene 100 parts, hypophosphorous acid
5 parts of magnesium, melamine polyphosphate 15 parts, maleic anhydride inoculated polypropylene 3 parts, antioxidant PS802 0.2
Part, irgasfos 168/1,010 0.2 part, lubricant SG200 0.5 part；Described polyacrylic melt index
For 15.0g/10min, for raising sub-petrochemical industry S700.
Preparation method is as follows: (1) weighs raw material by proportioning, mixes；(2) by step 2) mix
Dual-screw-stem machine extruding pelletization put into by raw material, and the rotating speed of described dual-screw-stem machine is 200 revs/min, and temperature is
160℃。
Comparative example 4
A kind of PP composite material, is prepared by the raw materials in: polypropylene 100 parts, hydroxide
20 parts of magnesium, maleic anhydride inoculated polypropylene 3 parts, antioxidant PS802 0.2 part, irgasfos 168/1,010 0.2
Part, lubricant SG200 0.5 part；Described polyacrylic melt index is 15.0g/10min, for Yang Zishi
Change S700.
Preparation method is as follows: (1) weighs raw material by proportioning, mixes；(2) by step 2) mix
Dual-screw-stem machine extruding pelletization put into by raw material, and the rotating speed of described dual-screw-stem machine is 200 revs/min, and temperature is
160℃。
Performance test
To the high glow-wire low-smoke halogen-free flame-retardant polypropylene composite material prepared in embodiment 1-3 and and comparative example
The material that 1-4 prepares carries out fire resistance and Mechanics Performance Testing contrast, and wherein hot-bulb impression test temperature is
125 DEG C, the time is 2h, and result is as shown in table 1.
The performance test results of the PP composite material of table 1 present invention
As shown in Table 1, the high glow-wire low-smoke halogen-free flame-retardant polypropylene composite material that the present invention prepares has bright
The excellent specific properties such as heated filament, low hot-bulb impression, low-smoke, and fire resistance reaches UL94V-0 level.Contrast
Example 1 compared with Example 1, is not added with white oil in formula, the mechanical performance of material slightly improves, but material
GWIT and GWFI of material is on the low side, and the hot-bulb impression diameter of material is big, shows the heat-resisting of comparative example 1 material
Property poor, add white oil and can play raising material GWIT and heat resistance in fire-retardant PP system.Comparative example 2
It is not added with porous aluminum silicon inorganic matter compared with Example 1, it is seen that the smoke-suppressing of material and GWIT, GWFI
Can decline, comparative example 3 is not added with white oil and porous aluminum silicon inorganic matter, table again compared with comparative example 1
In bright fire retardant, compounding porous aluminum silicon inorganic matter can be effectively improved smoke-suppressing and glowing filament performance, the white oil of material
Then can improve the heat resistance of fire-retardant PP material, effectively reduce hot-bulb impression.Comparative example 4 lists employing routine
The performance of the obtained material of halogen-free flame retardants, its fire retardant addition is equal to comparative example 1, contrasts with the present invention
Example 1 is compared, and under adding the fire retardant that isodose is different, the fire resistance of the obtained material of comparative example is poor,
Fire-retardant for V2 level, meanwhile, the smoke-suppressing of material, heat resistance, GWIT etc. are the most poor, limit material and exist
The application of high-end electrical equipment occasion, the material that the present invention is obtained has in fields such as electronic apparatus, household electrical appliances, automobiles
Wide application prospect.
The above is only the preferred embodiment of the present invention, it is noted that common for the art
Technical staff, on the premise of without departing from the inventive method, it is also possible to makes some improvement and supplements, these
Improve and supplement and also should be regarded as protection scope of the present invention.
Claims (8)
1. a high glow-wire, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that: described high glow-wire,
Low-smoke flame-retardant polypropylene alkene composite is prepared by the raw materials in: polypropylene 100 parts, hypophosphites
5-10 part, melamine polyphosphate 15-20 part, porous aluminum silicon inorganic matter 1-3 part, maleic anhydride grafting
Polypropylene 3-10 part, antioxidant PS802 0.2-1.2 part, irgasfos 168/1010 0.2-1.0 part, lubricant
SG200 0.5-3.0 part, white oil 5-10 part.
High glow-wire the most according to claim 1, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that:
Described high glow-wire, low-smoke flame-retardant polypropylene alkene composite are prepared by the raw materials in: polypropylene 100
Part, hypophosphites 5-8 part, melamine polyphosphate 15-18 part, porous aluminum silicon inorganic matter 1-2 part, horse
Maleic anhydride grafted polypropylene 3-7 part, antioxidant PS802 0.2-0.8 part, irgasfos 168/1010 0.2-0.6 part,
Lubricant SG200 0.5-1.5 part, white oil 5-7 part.
High glow-wire the most according to claim 1, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that:
Described high glow-wire, low-smoke flame-retardant polypropylene alkene composite are prepared by the raw materials in: polypropylene 100
Part, hypophosphites 8 parts, melamine polyphosphate 18 parts, porous aluminum silicon inorganic matter 2 parts, maleic anhydride
Graft polypropylene 7 parts, antioxidant PS802 0.8 part, irgasfos 168/1,010 0.6 part, lubricant SG200
1.5 parts, white oil 7 parts.
High glow-wire the most according to claim 1, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that:
Described polyacrylic melt index is 15.0g/10min.
High glow-wire the most according to claim 1, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that:
Described white oil is 26# industrial plastics processing oil.
High glow-wire the most according to claim 1, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that:
Described porous aluminum silicon inorganic matter granularity is 2～3 μm, and specific surface area is 400～600m2/g。
High glow-wire the most according to claim 1, low-smoke flame-retardant polypropylene alkene composite, it is characterised in that:
Described hypophosphites is magnesium hypophosphite.
8. the arbitrary described high glow-wire of claim 1-7, the preparation method of low-smoke flame-retardant polypropylene alkene composite,
It is characterized in that: comprise the steps:
(1) proportioning as described in claim 1 weighs raw material, takes polypropylene and mixes with white oil；
(2) by surplus stock and step 1) raw material prepared mixes；
(3) by step 2) raw material that mixes puts into dual-screw-stem machine extruding pelletization, turning of described dual-screw-stem machine
Speed is 200-300 rev/min, and temperature is 160-190 DEG C.
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Cited By (4)
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| CN109535563A (en) * | 2018-12-04 | 2019-03-29 | 佛山市巨齿鲨科技有限公司 | A kind of environment-friendly composite material and the preparation method and application thereof |
| CN109651709A (en) * | 2018-11-23 | 2019-04-19 | 金旸（厦门）新材料科技有限公司 | A kind of novel high glow-wire flammability index flame-retardant polypropylene composite material and preparation method thereof |
| CN112029192A (en) * | 2020-08-12 | 2020-12-04 | 中广核俊尔(浙江)新材料有限公司 | Low-emission low-warpage long glass fiber reinforced polypropylene composite material suitable for automobile sunroof guide rail and preparation method and application thereof |
| CN114933762A (en) * | 2022-05-30 | 2022-08-23 | 东莞市百思特塑胶有限公司 | High-leakage-tracking high-glow-wire PP (polypropylene) material |
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| CN109651709A (en) * | 2018-11-23 | 2019-04-19 | 金旸（厦门）新材料科技有限公司 | A kind of novel high glow-wire flammability index flame-retardant polypropylene composite material and preparation method thereof |
| CN109651709B (en) * | 2018-11-23 | 2021-05-11 | 金旸（厦门）新材料科技有限公司 | Flame-retardant polypropylene composite material with high glowing filament flammability index and preparation method thereof |
| CN109535563A (en) * | 2018-12-04 | 2019-03-29 | 佛山市巨齿鲨科技有限公司 | A kind of environment-friendly composite material and the preparation method and application thereof |
| CN112029192A (en) * | 2020-08-12 | 2020-12-04 | 中广核俊尔(浙江)新材料有限公司 | Low-emission low-warpage long glass fiber reinforced polypropylene composite material suitable for automobile sunroof guide rail and preparation method and application thereof |
| CN112029192B (en) * | 2020-08-12 | 2022-09-13 | 中广核俊尔(浙江)新材料有限公司 | Low-emission low-warpage long glass fiber reinforced polypropylene composite material suitable for automobile sunroof guide rail and preparation method and application thereof |
| CN114933762A (en) * | 2022-05-30 | 2022-08-23 | 东莞市百思特塑胶有限公司 | High-leakage-tracking high-glow-wire PP (polypropylene) material |
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