CN103483690A - Modified polypropylene composite material - Google Patents
Modified polypropylene composite material Download PDFInfo
- Publication number
- CN103483690A CN103483690A CN201310363074.7A CN201310363074A CN103483690A CN 103483690 A CN103483690 A CN 103483690A CN 201310363074 A CN201310363074 A CN 201310363074A CN 103483690 A CN103483690 A CN 103483690A
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- composite material
- modified polypropylene
- polypropylene composite
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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
- C08L23/14—Copolymers of propene
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
Abstract
The invention discloses a modified polypropylene composite material which comprises the following components in percentage by weight: 60-80% of polypropylene copolymer, 2-10% of toughener, 1-10% of maleic anhydride grafted polypropylene, 0.1-2% of coupling agent, 5-30% of halogen-free flame retardant, 0.2-2% of photostabilizer and 1-2% of stearic acid. The modified polypropylene composite material has the advantages of favorable weather resistance and long service life; the 3000-hour color difference is less than 1, and thus, the modified polypropylene composite material satisfies the requirement of no color fading after outdoor use for 8-10 years; the flame retardancy is favorable, the flame-retardant grade reaches V0 Grade, and the environmental protection property satisfies the RoHS standard requirement; and besides, the modified polypropylene composite material has excellent toughness, rigidity and scratch resistance. The modified polypropylene composite material can be used for blow molding, is suitable for producing various automobile parts, electric appliance parts and the like, and is especially suitable for producing outdoor bleacher chairs.
Description
Technical field
The invention belongs to the thermoplastic macromolecule material technical field, be specifically related to a kind of modified polypropylene composite material.
Background technology
The polypropylene mechanicalness excellent with it, the characteristics such as good electrical insulating property, chemical proofing and density is little, quality is light and be widely used in the industries such as automobile, household electrical appliances, weaving, building.But polyacrylic oxygen index is low, only have 17.14, easily burning, the combustion heating amount is large, can produce a large amount of molten drops, and the amount of being fuming is large, ecotope is caused to disadvantageous effect, and propagating flame very easily, the fire failure caused thus in recent years occurs again and again, causes huge infringement to people's safety of life and property.Therefore, flame retardant properties is also the requirement that polypropylene material need be satisfied.Have higher requirement for flame retardant plastics in countries in the world at present, and the low smoke and zero halogen environmental protection becomes the developing direction that polypropylene flame redardant is new.Although existing polypropylene flame redardant flame retardant properties meets the demands, weathering resistance is barely satisfactory, and price is high.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, to provide the modified polypropylene composite material of a kind of good weatherability, long service life.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of modified polypropylene composite material, and its weight percent forms and comprises:
Co-polypropylene: 60～80%,
Toughner: 2～10%,
Maleic anhydride inoculated polypropylene: 1～10%,
Coupling agent: 0.1～2%,
Halogen-free flame retardants: 5～30%,
Photostabilizer: 0.2～2%,
Stearic acid: 1～2%.
Preferably, described toughner is polyolefin elastomer.The toughening effect of polyolefin elastomer is better, makes modified polypropylene composite material still can keep good mechanical property at the low temperature of-40 ℃.
Preferably, the graft(ing) degree of described maleic anhydride inoculated polypropylene is 8～20%.When graft(ing) degree reaches 8～20%, it is better that maleic anhydride inoculated polypropylene improves the effect of halogen-free flame retardants and the polyacrylic consistency of copolymerization, and the modified polypropylene composite material that makes to obtain keeps original physical property of Co-polypropylene to greatest extent.
Preferably, described coupling agent is γ-methacryloxypropyl trimethoxy silane.γ-methacryloxypropyl trimethoxy silane can coat halogen-free flame retardants well, improve halogen-free flame retardants and the polyacrylic consistency of copolymerization, the impact of reduction on photostabilizer, brought into play the light stabilising effect of photostabilizer, guaranteed the weathering resistance of modified polypropylene composite material.
Preferably, described halogen-free flame retardants is comprised of ammonium polyphosphate, trimeric cyanamide or melamine polyphosphate, tetramethylolmethane and organo montmorillonite.Can not produce poisonous corrosive gases during the halogen-free flame retardants burning, avoid the harm to HUMAN HEALTH and environment, meet the standard of the RoHS of European Union, meet the requirement of low smoke and zero halogen environmental protection flame retardant.Halogen-free flame retardants after composite has improved the flame retardant resistance of modified polypropylene composite material greatly, can meet the blowing requirement of acrylic plastering simultaneously, reduces costs.
Preferably, the polymerization degree of described ammonium polyphosphate >=1500, effective content >=99%.The ammonium polyphosphate of the polymerization degree >=1500, effective content >=99%, its flame retardant effect is better.
Preferably, the mass ratio of ammonium polyphosphate, trimeric cyanamide or melamine polyphosphate, tetramethylolmethane and organo montmorillonite is 2～6:1～4:1～3:0.2～0.6.Control the mass ratio of ammonium polyphosphate, trimeric cyanamide or melamine polyphosphate, tetramethylolmethane and organo montmorillonite in this scope, when reaching preferably flame retardant effect, further reduced cost.
Preferably, described photostabilizer is poly-{ (6-morpholinyl-5-triazine-2,4-bis-bases) (2,2,6,6-tetramethyl-piperidyl) imido grpup hexa-methylene [(2,2,6,6-tetramethyl-piperidyl)-imido grpup] }, and its molecular formula is (C
31h
56n
8o) n is for No. CAS 82451-48-7.This photostabilizer is the aggretion type high molecular weight hindered amine light stabilizer, contains hindered amine group and triazine group, and the light stabilising effect is good, can improve weathering resistance and the work-ing life of modified polypropylene composite material.
Compared with prior art, the invention has the advantages that: the present invention adds toughner and improves toughness; Add environment amenable halogen-free flame retardants and improve flame retardant resistance; Add photostabilizer and improve weathering resistance and work-ing life; Add coupling agent and coat halogen-free flame retardants, improve halogen-free flame retardants and the polyacrylic consistency of copolymerization, reduce the impact of halogen-free flame retardants on photostabilizer, improve weathering resistance; Add maleic anhydride inoculated polypropylene and improve halogen-free flame retardants and the polyacrylic consistency of copolymerization; Stearic acid is uniformly dispersed halogen-free flame retardants in modified polypropylene composite material, and can carry out secondary instrument bread to halogen-free flame retardants and cover, reduce the impact of halogen-free flame retardants on photostabilizer, stearic acid can also form the buffer substance between halogen-free flame retardants and photostabilizer together with coupling agent, improves flame retardant resistance and the light stability of modified polypropylene composite material of the present invention simultaneously.Modified polypropylene composite material of the present invention has good weathering resistance, long service life, carry out weathering test according to ISO4582-2007 " plastics are exposed to the mensuration of color change and performance variation after daylight, weathering or laboratory light source through glass " method, its 3000 hours aberration are less than 1, reach the requirement that outdoor application is not faded in 8～10 years; Flame retardant resistance is good, and according to UL94-1996REV.9:2009 " the flammable test of plastic material for equipment and device component " test flame retardant resistance, its flame retardant rating reaches the V0 level, and the feature of environmental protection meets the RoHS standard-required; In addition, also there is good toughness, rigidity and scratch-proofness.Modified polypropylene composite material of the present invention can carry out blowing processing, is applicable to produce various trolley parts, electrical component etc., is particularly useful for producing outdoor seat platform and sees chair.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
The weight percent formula of the modified polypropylene composite material of embodiment 1 is: Co-polypropylene 65%, polyolefin elastomer 6%, maleic anhydride inoculated polypropylene 6%, γ-methacryloxypropyl trimethoxy silane 0.5%, ammonium polyphosphate 10%, trimeric cyanamide 5%, tetramethylolmethane 5%, organo montmorillonite 1%, No. CAS photostabilizer 0.5% that is 82451-48-7, stearic acid 1%, mix above-mentioned raw materials, stir, cooling after twin screw extruder is extruded, pelletizing, obtain the modified polypropylene composite material pellet of embodiment 1.
The weight percent formula of the modified polypropylene composite material of embodiment 2 is: Co-polypropylene 60%, polyolefin elastomer 4%, maleic anhydride inoculated polypropylene 5%, γ-methacryloxypropyl trimethoxy silane 0.3%, ammonium polyphosphate 14%, trimeric cyanamide 7.5%, tetramethylolmethane 6.5%, organo montmorillonite 1.3%, No. CAS photostabilizer 0.2% that is 82451-48-7, stearic acid 1.2%, mix above-mentioned raw materials, stir, cooling after twin screw extruder is extruded, pelletizing, obtain the modified polypropylene composite material pellet of embodiment 2.
The weight percent formula of the modified polypropylene composite material of embodiment 3 is: Co-polypropylene 70%, polyolefin elastomer 8%, maleic anhydride inoculated polypropylene 8%, γ-methacryloxypropyl trimethoxy silane 1.0%, ammonium polyphosphate 4.5%, trimeric cyanamide 2.7%, tetramethylolmethane 2.3%, organo montmorillonite 0.3%, No. CAS photostabilizer 1.5% that is 82451-48-7, stearic acid 1.7%, mix above-mentioned raw materials, stir, cooling after twin screw extruder is extruded, pelletizing, obtain the modified polypropylene composite material pellet of embodiment 3.
The weight percent formula of the modified polypropylene composite material of embodiment 4 is: Co-polypropylene 77%, polyolefin elastomer 2%, maleic anhydride inoculated polypropylene 3%, γ-methacryloxypropyl trimethoxy silane 1.6%, ammonium polyphosphate 5.8%, trimeric cyanamide 3.4%, tetramethylolmethane 2.9%, organo montmorillonite 0.5%, No. CAS photostabilizer 1.8% that is 82451-48-7, stearic acid 2%, mix above-mentioned raw materials, stir, cooling after twin screw extruder is extruded, pelletizing, obtain the modified polypropylene composite material pellet of embodiment 4.
In above specific embodiment, the toughner product that polyolefin elastomer can be DF740 for the marque of Mitsui manufacture, its density is 870g/cm
3, fusing point is 59 ℃, the melting index that surface hardness shore A is 73,190 ℃ is 3.6g/10min, Vicat softening point is 48 ℃, embrittlement temperature<-70 ℃, breaking tenacity>and 10Mpa, extension at break>800%, torsion rigidity is 3Mpa.
The modified polypropylene composite material pellet that above-described embodiment 1～4 is obtained carries out performance test.Carry out weathering test according to ISO4582-2007 " plastics are exposed to the mensuration of color change and performance variation after daylight, weathering or laboratory light source through glass " method, its 3000 hours aberration are less than 1; According to UL94-1996REV.9:2009 " the flammable test of plastic material for equipment and device component " test flame retardant resistance, its flame retardant rating reaches the V0 level, and the feature of environmental protection meets the RoHS standard-required.
For the modified polypropylene composite material pellet obtained in above embodiment 1～embodiment 4, adopt GB GB/T1843-2008 " plastics izodtest method " to test socle girder notched Izod impact strength performance, adopt GB GB/T1634-2004 " plastics bending load heat-drawn wire test method " test heat-drawn wire performance, adopt GB GB/T1040-2006 " plastic tensile test method " to test tensile strength, elongation at break properties, adopt GB9341-2008 " Plastics-Oetermination of flexural properties method " to test flexural strength and modulus in flexure, its performance test results is in Table 1.Visible, polypropylene composite material provided by the invention has higher rigidity, intensity and toughness.
The performance test results of table 1 embodiment 1～embodiment 4 polypropylene composite material
Claims (8)
1. a modified polypropylene composite material, is characterized in that, its weight percent forms and comprises:
Co-polypropylene: 60 ~ 80%,
Toughner: 2 ~ 10%,
Maleic anhydride inoculated polypropylene: 1 ~ 10%,
Coupling agent: 0.1 ~ 2%,
Halogen-free flame retardants: 5 ~ 30%,
Photostabilizer: 0.2 ~ 2%,
Stearic acid: 1 ~ 2%.
2. a kind of modified polypropylene composite material according to claim 1, is characterized in that described toughner is polyolefin elastomer.
3. a kind of modified polypropylene composite material according to claim 1, the graft(ing) degree that it is characterized in that described maleic anhydride inoculated polypropylene is 8 ~ 20%.
4. a kind of modified polypropylene composite material according to claim 1, is characterized in that described coupling agent is γ-methacryloxypropyl trimethoxy silane.
5. a kind of modified polypropylene composite material according to claim 1, is characterized in that described halogen-free flame retardants is comprised of ammonium polyphosphate, trimeric cyanamide or melamine polyphosphate, tetramethylolmethane and organo montmorillonite.
6. a kind of modified polypropylene composite material according to claim 5, is characterized in that the polymerization degree of described ammonium polyphosphate >=1500, effective content >=99%.
7. according to the described a kind of modified polypropylene composite material of claim 5 or 6, the mass ratio that it is characterized in that ammonium polyphosphate, trimeric cyanamide or melamine polyphosphate, tetramethylolmethane and organo montmorillonite is 2 ~ 6: 1 ~ 4: 1 ~ 3: 0.2 ~ 0.6.
8. a kind of modified polypropylene composite material according to claim 1, it is characterized in that described photostabilizer is for poly-{ (6-morpholinyl-5-triazine-2,4-bis-bases) (2,2,6,6-tetramethyl-piperidyl) imido grpup hexa-methylene [(2,2,6,6-tetramethyl-piperidyl)-imido grpup] }, its molecular formula is (C
31h
56n
8o) n is for No. CAS 82451-48-7.
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| CN201310363074.7A CN103483690B (en) | 2013-07-31 | 2013-08-19 | A kind of modified polypropylene composite material |
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| CN201310330893 | 2013-07-31 | ||
| CN201310330893.1 | 2013-07-31 | ||
| CN2013103308931 | 2013-07-31 | ||
| CN201310363074.7A CN103483690B (en) | 2013-07-31 | 2013-08-19 | A kind of modified polypropylene composite material |
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| CN103483690A true CN103483690A (en) | 2014-01-01 |
| CN103483690B CN103483690B (en) | 2016-04-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448560A (en) * | 2014-12-01 | 2015-03-25 | 黑龙江省润特科技有限公司 | Polypropylene halogen-free intumescent flame retardant |
| CN105778268A (en) * | 2014-12-16 | 2016-07-20 | 北京化工大学 | Halogen-free flame-retardant nano-montmorillonite polypropylene composite material and preparation method therefor |
| CN106476383A (en) * | 2016-10-09 | 2017-03-08 | 台州市黄岩恒龙工艺品有限公司 | Folder Wood chopping block and its manufacturing process |
| CN107556684A (en) * | 2017-09-04 | 2018-01-09 | 诚德科技股份有限公司 | A kind of anti-aging plastic packaging bag and preparation method thereof |
| CN114921027A (en) * | 2022-06-21 | 2022-08-19 | 宁夏永大石化有限公司 | Polypropylene composite flame-retardant material containing nitrogen flame retardant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448560A (en) * | 2014-12-01 | 2015-03-25 | 黑龙江省润特科技有限公司 | Polypropylene halogen-free intumescent flame retardant |
| CN105778268A (en) * | 2014-12-16 | 2016-07-20 | 北京化工大学 | Halogen-free flame-retardant nano-montmorillonite polypropylene composite material and preparation method therefor |
| CN106476383A (en) * | 2016-10-09 | 2017-03-08 | 台州市黄岩恒龙工艺品有限公司 | Folder Wood chopping block and its manufacturing process |
| CN106476383B (en) * | 2016-10-09 | 2018-03-13 | 台州市黄岩恒龙工艺品有限公司 | Press from both sides Wood chopping block and its manufacturing process |
| CN107556684A (en) * | 2017-09-04 | 2018-01-09 | 诚德科技股份有限公司 | A kind of anti-aging plastic packaging bag and preparation method thereof |
| CN107556684B (en) * | 2017-09-04 | 2019-06-21 | 诚德科技股份有限公司 | A kind of anti-aging plastic packaging bag and preparation method thereof |
| CN114921027A (en) * | 2022-06-21 | 2022-08-19 | 宁夏永大石化有限公司 | Polypropylene composite flame-retardant material containing nitrogen flame retardant |
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| CN103483690B (en) | 2016-04-13 |
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