CN104672614A - Polypropylene composite material and preparation method thereof - Google Patents
Polypropylene composite material and preparation method thereof Download PDFInfo
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- CN104672614A CN104672614A CN201510098430.6A CN201510098430A CN104672614A CN 104672614 A CN104672614 A CN 104672614A CN 201510098430 A CN201510098430 A CN 201510098430A CN 104672614 A CN104672614 A CN 104672614A
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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
-
- 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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- 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
-
- 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
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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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- 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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to the technical field of a high-polymer material, and provides a polypropylene composite material and a preparation method thereof. The polypropylene composite material comprises components in percentage by weight as follows: 26.7%-57.8% of polypropylene, 1%-1.2% of mineral oil, 30%-40% of a fire retardant, 10%-30% of filler, 0.6%-1% of a dispersing agent, 0.4%-0.7% of a lubricating agent and 0.2%-0.4% of an antioxidant. According to the polypropylene composite material, an appropriate resin raw material and various auxiliaries are adopted through compounding, and the flame-retardant polypropylene material with high glowing filament performance is obtained; through addition of high-strength filler silicon whisker, the polypropylene composite material is endowed with good mechanical properties, can be used as a fan heater shell material, meets Australia's new standards and has a wide application market.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly relate to a kind of polypropylene composite material and preparation method thereof.
Background technology
Polypropylene is one of five large general-purpose plastics, nontoxic, light weight, corrosion-resistant, be easy to processing, production cost is low, and comprehensive mechanical property is good, is widely used in producing and sphere of life.In recent years, it is the highest that the consumption of general-purpose plastics increases, but it belongs to inflammable material, there is potential safety hazard, therefore carries out modification to it, and it is necessary for giving its flame retardant properties.At present, prepared by the polypropylene (PP) that a lot of household appliances shell material adopts V0 level fire-retardant all successively.
Warm-air drier is all generally prepared by fire-retardant material, but in view of within these 2 years, the too many case of catching fire due to warm-air drier initiation occurs, Australia standard committee has issued new standard, a lot of more strict requirement is added to this series products, also certain requirement is had to the glowing filament performance of material, namely will by glowing filament flammability index (GWIT) test of 850 DEG C.The requirement of Australia regulator, all products not meeting these new demands, are prohibited from entering market, Australia.And the general fire-retardant PP of V0 level is not nearly all by the GWIT glowing filament flammability index test of 750 DEG C, do not meet the new standard in Australia, greatly limit its application market.
But existing high glow-wire polypropylene commercially, due to fire retardant addition large (generally wanting more than 50%), greatly reduces the mechanical property of material, particularly tensile strength is on the low side, generally only have 12MPa, show as material partially soft, be difficult to the demand meeting client.
Summary of the invention
The object of the invention is to overcome the deficiency of polypropylene material bad mechanical property in prior art, the polypropylene composite material of a kind of flame retardant properties and good mechanical performance is provided.
Another object of the present invention is to provide a kind of simple to operate, polypropylene composite material preparation method that cost is low.
In order to realize foregoing invention object, technical scheme of the present invention is as follows:
A kind of polypropylene composite material, comprises the component of following weight percent:
And the preparation method of above-mentioned polypropylene composite material, comprises the steps:
Each component is taken respectively by the formula of above-mentioned polypropylene composite material; ;
By above-mentioned polypropylene, Dormant oils, fire retardant, filler, dispersion agent, lubricant, oxidation inhibitor mixing, obtain mixture;
Said mixture is melt extruded, obtains above-mentioned polypropylene composite material.
The polypropylene composite material of the embodiment of the present invention, by resin raw material, fire retardant and various auxiliary agent that composite employing is suitable, obtain the polypropylene material with excellent flame retardant performance, and by adding high strength filler silicon whisker, give the mechanical property that polypropylene composite material is excellent, can be used for warm air blower shell material, meet the new standard in Australia, be widely used market.
The preparation method of above-mentioned polypropylene composite material adopts the method for blending and modifying each component to be mixed by proportioning, melt extrudes and can obtain, and simply, excellent, is convenient to promote for equipment and technical requirements.
Accompanying drawing explanation
Fig. 1 is preparation technology's schematic flow sheet of embodiment of the present invention polypropylene composite material.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiments provide a kind of polypropylene composite material, comprise the component of following weight percent:
Particularly, above-mentioned polypropylene (PP) is homo-polypropylene or Co-polypropylene, and described polyacrylic melt flow rate (MFR) is >15g/10min.In the present invention preferably implements, above-mentioned polypropylene is preferably homopolymerization type, flow rate is the polypropylene being greater than 25g/10min, and this preferred strength of PP is better, has excellent resistance to water soak, antiacid caustic corrosion and resist dissolution.Further, the PP150 type product of the preferred Chinese Maoming Petrochemical brand of above-mentioned polypropylene.Further, above-mentioned polypropylene is preferably powder polypropylene.
Particularly, above-mentioned filler is silicon whisker, fibrous physique structure, and particle diameter is 1000 ~ 3000 orders.In a preferred embodiment of the invention, the particle diameter of this silicon whisker is 2000 orders, and the silicon whisker of this particle diameter has good enhancing, toughening effect to PP, and alternative glass fibre, reduces production cost greatly; Improve the outward appearance of goods, reduce shrinkage strain rate, improve dimensional stability; Improve heat-drawn wire, chemically-resistant, antiseptic property and machining property; Improve tensile strength, warp resistance intensity, hardness, wear resistance, high temperature resistant and electrical insulation capability.Further, this silicon whisker preferably goes up the silicon whisker product of Nereid Ya Na meter novel material company limited.
Particularly, macromolecular efficient flame-retarding agent selected by above-mentioned fire retardant, is preferably the macromole efficient flame-retarding agent of ammonium polyphosphate class.In a preferred embodiment of the invention, above-mentioned macromole efficient flame-retarding agent is preferably the RHPP-085-3A type product of auspicious great chemical industry brand.This preferred fire retardant is a kind of novel synthetic nitrogen phosphorus flame retardant of low smoke and zero halogen of macromolecular structure system, and itself and polypropylene have fabulous consistency, has excellent dispersiveness, mobility, hydrolytic resistance; Little to the mechanical impact of polypropylene composite material, there is the intermediate that can absorb heat energy in a large number, the characteristic of a large amount of heats can be taken away when polypropylene fission or burning; It also has higher mobility, consistency, good impact property, add cost low, it is a kind of desirable efficient environment friendly flame retardant, product is made to have the fire-retardant synergistic of good glowing filament, glowing filament (GWIT) >=850 DEG C, meets the environmental protection standard of European Union up-to-date (SVHC).
Particularly, above-mentioned dispersion agent is at least one in fatty acid dispersion agent, aliphatic amide type dispersion agent, ester class dispersion agent, paraffin class dispersion agent, metal soap dispersion agent.In the present invention preferably implements, this dispersion agent is preferably N, N-ethylene bis stearamide (EBS), and especially the place of production is the product of Indonesia.This preferred dispersion agent is a kind of high-melting-point lubricant, its dispersing property and thermal stability good, good with the consistency of above-mentioned polypropylene, dispersion agent, prevent from mutually assembling between each component of polypropylene composite material, good fluidity during forming process.
Particularly, above-mentioned lubricant is internal lubricant and/or external lubricant; The compound system of lubrication and outer lubrication in being preferably, the weight percent of this interior lubrication and outer lubrication is 3:10 ~ 1:2.Further, above-mentioned internal lubricant is calcium stearate, and external lubricant is PE wax or OP wax, and the preferred place of production is the product of China.
Particularly, above-mentioned oxidation inhibitor is four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester, 1010 type products of preferred Taiwan double bond chemical industry brand.
Particularly, above-mentioned Dormant oils is preferably white oil.
The polypropylene composite material that the embodiment of the present invention provides, the polypropylene suitable by composite employing and fire retardant, obtain the anti-flaming polypropylene material with high glow-wire performance, and by adding high strength filler silicon whisker, modification is carried out to polypropylene, give polypropylene composite material, while there is excellent flame retardant performance, also there is excellent mechanical property.The polypropylene composite material of the embodiment of the present invention can be used for warm air blower shell material, meets the new standard in Australia, and be widely used market.
As shown in Figure 1, the embodiment of the present invention additionally provides the preparation method of above-mentioned polypropylene composite material, comprises the steps:
S01: take each component respectively by the formula of above-mentioned polypropylene composite material;
S02: by above-mentioned polypropylene, Dormant oils, fire retardant, filler, dispersion agent, lubricant, oxidation inhibitor mixing, obtain mixture;
S03: melt extruded by said mixture, obtains above-mentioned polypropylene composite material.
Particularly, each component preferred content in the formula of the polypropylene composite material in above-mentioned steps S01 and formula and kind as described above, in order to save length, do not repeat them here.Further, above-mentioned polypropylene is preferably powder body material, is convenient to blanking, and mixes with fire retardant and other powder body materials.
Particularly, in above-mentioned steps S02, the time of mixing treatment is 3 ~ 5min, and make each component mix fully, the equipment as mixing can be high-speed stirring bucket etc.
Particularly, in above-mentioned steps S03, the equipment melt extruded is single screw extrusion machine or twin screw extruder, and the processing condition melt extruded are: 180 ~ 190 DEG C, a district, two 180 ~ 200 DEG C, districts, three 190 ~ 200 DEG C, districts, four 190 ~ 210 DEG C, districts, five 190 ~ 210 DEG C, districts, six 180 ~ 200 DEG C, districts, seven 180 ~ 190 DEG C, districts, eight 180 ~ 190 DEG C, districts; Screw speed is 350 ~ 400r/min; Vacuum tightness is-0.03 ~-0.06Mpa.
The polypropylene composite material preparation method of the embodiment of the present invention, simple to operate, with low cost, be very suitable for suitability for industrialized production.
Below in conjunction with specific embodiment, above-mentioned polypropylene composite material preparation method is described in detail.
Embodiment 1:
S11: take each component respectively: polypropylene (PP) 57.8%, white mineral oil 1%, fire retardant 30%, silicon whisker 10%, dispersion agent 0.6%, lubricant 0.4%, oxidation inhibitor 0.2%;
S12: each component taken in step S11 is mixed, obtains mixture;
S13: the material mixed in step S12 is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes polypropylene composite material; Wherein, screw rod each heating region temperature arranges and is respectively: 180 DEG C, a district, 180 DEG C, 2nd district, 190 DEG C, 3rd district, 190 DEG C, 4th district, 190 DEG C, 5th district, 180 DEG C, 6th district, 180 DEG C, 7th district, 180 DEG C, 8th district; Screw speed is 350r/min; Vacuum tightness is-0.03 ~-0.06Mpa.
Embodiment 2:
S21: take each component respectively: polypropylene (PP) 50.4%, white mineral oil 1%, fire retardant 33%, silicon whisker 15%, dispersion agent 0.7%, lubricant 0.5%, oxidation inhibitor 0.2%;
S22: each component taken in step S21 is mixed, obtains mixture;
S23: the material mixed in step S22 is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes polypropylene composite material; Wherein, screw rod each heating region temperature arranges and is respectively: 180 DEG C, a district, 190 DEG C, 2nd district, 190 DEG C, 3rd district, 200 DEG C, 4th district, 200 DEG C, 5th district, 190 DEG C, 6th district, 180 DEG C, 7th district, 180 DEG C, 8th district; Screw speed is 370r/min; Vacuum tightness is-0.03 ~-0.06Mpa.
Embodiment 3:
S31: take each component respectively: polypropylene (PP) 64%, white mineral oil 1.2%, fire retardant 36%, silicon whisker 25%, dispersion agent 0.8%, lubricant 0.6%, oxidation inhibitor 0.4%;
S32: each component taken in step S31 is mixed, obtains mixture;
S33: the material mixed in step S32 is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes polypropylene composite material; Wherein, screw rod each heating region temperature arranges and is respectively: 180 DEG C, a district, 190 DEG C, 2nd district, 210 DEG C, 3rd district, 200 DEG C, 4th district, 190 DEG C, 5th district, 190 DEG C, 6th district, 180 DEG C, 7th district, 180 DEG C, 8th district; Screw speed is 380r/min; Vacuum tightness is-0.03 ~-0.06Mpa.
Embodiment 4:
S41: take each component respectively: polypropylene (PP) 26.7%, white mineral oil 1.2%, fire retardant 40%, silicon whisker 30%, dispersion agent 1%, lubricant 0.7%, oxidation inhibitor 0.4%;
S42: each component taken in step S41 is mixed, obtains mixture;
S43: the material mixed in step S42 is joined in the hopper of twin screw extruder, through melt blending, extruding pelletization becomes polypropylene composite material; Wherein, screw rod each heating region temperature arranges and is respectively: processing condition are: 190 DEG C, a district, 200 DEG C, 2nd district, 200 DEG C, 3rd district, 210 DEG C, 4th district, 210 DEG C, 5th district, 200 DEG C, 6th district, 190 DEG C, 7th district, 190 DEG C, 8th district; Screw speed is 400r/min; Vacuum tightness is-0.03 ~-0.06Mpa.
Performance test:
(1) tensile strength is tested by ASTM D-638 standard.Specimen types is I type, batten size (mm): (176 ± 2) (length) × (12.6 ± 0.2) (end portion width) × (3.05 ± 0.2) (thickness), draw speed is 50mm/min;
(2) Izod notched impact strength is tested by ASTM D-256 standard.Specimen types is I type, specimen size (mm): (63 ± 2) × (12.45 ± 0.2) × (3.1 ± 0.2); Breach type is category-A, and breach residual thickness is 1.9mm;
(3) flame retardant properties is by U.S. UL 94 standard testing.Batten thickness is respectively 1.6mm and 3.2mm;
(4) glowing filament performance is by following standard:
Glowing filament flammability test methods (GWFI) (IEC 60695-2-12:2000/GB/T5169.12-2006); Glow wire ignition's property test method (GWIT) (IEC 60695-2-13:2000/GB/T5169.13-2006);
Other tests: melting index is tested according to ASTM D1238.
Embodiment 1 ~ 4 formula and material property are in table 1:
Table 1
As can be seen from the above table, acrylic resin, fire retardant and association's synergistic agent thereof, when the content of filler changes within the scope of the present invention, the warm air blower shell high-glowing-filament-temperature flame-retardancy polypropylene material obtained, intensity and flame retardant effect and glowing filament performance all increase thereupon increasing, but impelling strength and elongation decline to some extent.Comprehensive cost and performance are considered, when polypropylene (PP) 64%; White mineral oil 1.2%; Fire retardant 36%; Silicon whisker 25%; Dispersion agent 0.8%; Lubricant 0.6%; During oxidation inhibitor 0.4%, the fire-retardant and glowing filament performance of obtained polypropylene material is all relatively good, and the glowing filament by the GWIT of 850 DEG C and 960 DEG C GWFI is tested, and intensity and toughness better.The present invention is by selecting suitable resin raw material and various auxiliary agent, and obtain the anti-flaming polypropylene material with high glow-wire performance, can be used for warm air blower shell material, meet the new standard in Australia, be widely used market.
Claims (10)
1. a polypropylene composite material, is characterized in that, comprises the component of following weight percent:
2. polypropylene composite material as claimed in claim 1, it is characterized in that, described filler is silicon whisker, and the particle diameter of described silicon whisker is 1000 ~ 3000 orders.
3. polypropylene composite material as claimed in claim 1, it is characterized in that, described fire retardant is macromole efficient flame-retarding agent.
4. the polypropylene composite material as described in any one of claims 1 to 3, is characterized in that, described polypropylene is homo-polypropylene or Co-polypropylene, and described polyacrylic melt flow rate (MFR) is >15g/10min.
5. the polypropylene composite material as described in any one of claims 1 to 3, is characterized in that, described dispersion agent is at least one in fatty acid dispersion agent, aliphatic amide type dispersion agent, ester class dispersion agent, paraffin class dispersion agent, metal soap dispersion agent.
6. the polypropylene composite material as described in any one of claims 1 to 3, is characterized in that, described lubricant is internal lubricant and/or external lubricant.
7. the polypropylene composite material as described in any one of claims 1 to 3, is characterized in that, described lubricant is the compound system of interior lubrication and outer lubrication, and the weight percent of described interior lubrication and outer lubrication is 3:10 ~ 1:2.
8. the polypropylene composite material as described in any one of claims 1 to 3, is characterized in that, described oxidation inhibitor is four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester.
9. a preparation method for polypropylene composite material, is characterized in that, comprises the steps:
Each component is taken respectively according to the formula of polypropylene composite material described in any one of claim 1 ~ 8;
By described polypropylene, Dormant oils, fire retardant, filler, dispersion agent, lubricant, oxidation inhibitor mixing, obtain mixture;
Described mixture is melt extruded, obtains described polypropylene composite material.
10. the preparation method of polypropylene composite material as claimed in claim 9, is characterized in that, described in melt extrude processing condition and be:
One 180 ~ 190 DEG C, district, two 180 ~ 200 DEG C, districts, three 190 ~ 200 DEG C, districts, four 190 ~ 210 DEG C, districts, five 190 ~ 210 DEG C, districts, six 180 ~ 200 DEG C, districts, seven 180 ~ 190 DEG C, districts, eight 180 ~ 190 DEG C, districts; Screw speed is 350 ~ 400r/min; Vacuum tightness is-0.03 ~-0.06Mpa.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592714A (en) * | 2020-04-20 | 2020-08-28 | 湖州正鸣塑胶科技有限公司 | Whisker reinforced composite PP material, preparation method thereof and plastic pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111592714A (en) * | 2020-04-20 | 2020-08-28 | 湖州正鸣塑胶科技有限公司 | Whisker reinforced composite PP material, preparation method thereof and plastic pipeline |
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Application publication date: 20150603 |