CN104530561A - Modified polypropylene microfoamed board prepared from microbead foaming agent and production method thereof - Google Patents
Modified polypropylene microfoamed board prepared from microbead foaming agent and production method thereof Download PDFInfo
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- CN104530561A CN104530561A CN201410810565.6A CN201410810565A CN104530561A CN 104530561 A CN104530561 A CN 104530561A CN 201410810565 A CN201410810565 A CN 201410810565A CN 104530561 A CN104530561 A CN 104530561A
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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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
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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
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
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Abstract
The invention discloses a modified polypropylene microfoamed board prepared from a microbead foaming agent and a production method thereof, belonging to the field of high polymers. The microfoamed board is composed of the following raw materials in percentage by weight: 50-80% of polypropylene, 5-20% of low-pressure polyethylene, 2-6% of microbead foaming agent, 1-3% of compatilizer, 0.2-1.0% of crosslinking agent, 5-10% of nucleator and 1-10% of reinforcer. The board has the advantage of light weight, and the temperature resistance can reach 120 DEG C; and the modified polypropylene microfoamed board is recoverable and environment-friendly. The modified polypropylene microfoamed board can be widely used for automobile interior ornaments, such as ceilings, sun visors, carpets, left/right/front/back protecting sheets and the like, and can also be widely used in packaging industry, electronic industry, architectural decoration industry and the like.
Description
Technical field
The invention belongs to foam material field of polymer technology, be specifically related to modified polypropene fretting map sheet material and the production method thereof of the manufacture of a kind of microballon whipping agent.
Background technology
Polypropylene expanded is the porous plastics of excellent combination property, has the advantages such as light weight, toughness, use heat resisting temperature are high, the reproducible environment-friendly type of feed back, can be widely used in and make automotive interior material and the material such as other is heat insulation, packaging, snubber.Current polypropylene expanded main employing moulded from foam and extrusion foaming, domestic extrusion foaming has patent report: the patent No. 200810196062.9, a kind of environment-friendly type micro-foaming polypropylene sheet and preparation method thereof, polypropylene used is the chemical modification polypropylene of disproportionation polypropylene-based Qinhuangdao Ford novel high polymer material development, and whipping agent adopts citric acid series; The patent No. 200910264014.3, a kind of high-toughness polypropylene foamed plate for externally packaging steel coil and preparation method etc., used polypropylene-basedly connect skill polyfunctional monomer, as Viscoat 295 or trimethylolpropane trimethacrylate, whipping agent adopts the multipolymer of 4.4-BP or Cellmic C 121 and zinc oxide; The patent No. 201210324567.5 propylene butene high melt strength, propylene foaming plate and preparation method thereof is also first make high melt strength, propylene; Therefore the polypropylene of current domestic foaming is all adopt branched p 0 lypropylene, namely general polypropylene is connect skill polyfunctional monomer, increase polyacrylic melt body intensity, make general polypropylene become high melt body intensity resin, the gas that whipping agent produces to be encased under hot shearing be not broken effusion adding.Due to the acrylic resin for the high melt body intensity foamed can't be produced at present, therefore general polypropylene is adopted, conventional AC foamer series and citric acid foamer series etc., whipping agent all can be made to produce gas breakthrough melt body, and difficulty makes polypropylene foamed plate.
Summary of the invention
For above-mentioned deficiency, the modified polypropene fretting map sheet material that the object of the present invention is to provide a kind of microballon whipping agent to manufacture and production method thereof, it is the polypropylene of the general melting index less (0.5-1.5g/10min) adopting domestic a large amount of supply, microballon foaming agent foam, obtained micro-foaming polypropylene sheet.
Technical scheme of the present invention is achieved in the following ways: the modified polypropene fretting map sheet material manufactured with microballon whipping agent, by weight percentage, be made up of following composition: polypropylene 50-80%, low pressure polyethylene 5-15%, microballon whipping agent 2-6%, compatilizer 1-3%, linking agent 0.2-1.0%, nucleator 5-8%, toughener 1-10%.
Described polyacrylic melting index is 0.5-1.5g/10min, and low pressure polyethylene melting index is 1-3g/10min.
Described microballon whipping agent is a kind of nucleocapsid structure, and shell is thermoplastic propene's acid ester polymer, and kernel is the sphere plastic particle of hydrocarbon polymer composition: its particle diameter is 30-40um, and initial blowing temperature is 160-170 DEG C, optimal foaming temperature 210-220 DEG C.
Described compatilizer is polypropylene grafted maleic anhydride compatilizer; Linking agent is dicumyl peroxide; Nucleator is nano titanium oxide, nano-calcium carbonate or nanomete talc powder.
Described toughener is hollow glass microbead, or soda lime borosilicate glass, and airtight just spherical in hollow, particle diameter is between 15-135 micron, and apparent density is between 0.12-0.60g/cm3.
Above-mentioned microballon whipping agent manufactures the production method of modified polypropene fretting map sheet material, comprises the following steps:
1), foamed material premix: by formula: polypropylene 50-80%, low pressure polyethylene
5-20%, microballon whipping agent 5-8%, compatilizer 1-3%, linking agent 0.2-1.0%, nucleator 5-8%, toughener 1-10%, weigh each component, add in mixing machine, at normal temperatures mix 20 minutes;
2), feeding: above-mentioned compound is added in the hopper of twin screw extruder with self-feeder;
Described twin screw extruder is Φ 120mm single screw extrusion machine, and screw slenderness ratio is 38:1.
3), plasticizing foaming: after closing exhaust system, by compound by extruder temperature 170 DEG C-220 DEG C, screw speed 30 revs/min-150 revs/min, carries out plastifying and foam;
4), extrusion foaming plate: according to foaming plate specifications and models specification of quality, regulate the gap of foaming plate squeezing mould and the roll spacing of width and three-roller calendar, make plasticizing foamed material enter three-roller calendar from plate squeezing mould;
A self balancing gear type melt pressure pump is installed between described hopper end and plate squeezing mould, extrusion die die lip is provided with adjustable bolt, when producing the foaming plate of different thickness, can manual regulation width baffle plate, die lip width L=1800mm, goods maximum width L=1600, adopts the multiple flow passages extrusion die of rack-style.
5), cooling and shaping: by from three-roller calendar foaming plate out, through cooling and shaping roller cooling and shaping;
6), drawing-off rip cutting: the foaming plate after sizing, by width specifications requirement, completes rip cutting in drafting process;
7), shear cross cutting: the sheet material after rip cutting, enters in sheet shears, by length scale requirements, carries out cross cutting;
8), finally carry out stacking, check, pack, put in storage.
The present invention, the foam expansion manufacturing modified polypropene porous plastics with microballon whipping agent is 1.2-6 times, and apparent density is 0.15 g/cm3-0.8g/cm3, thickness 2-8mm, tensile strength 12-25MPa, flexural strength 12-40 MPa, shock strength 15-50KJ/m
2.The sheet material that the present invention produces, have quality light, use resistance to temperature can reach 120 DEG C, the environment-friendly modified polypropylene fretting map sheet material of renewable process.Can automotive upholstery be widely used in, as: ceiling, sun visor, carpet, left and right and front and back backplate etc., also can be widely used in packaging industry, electronic industry, building decoration industry etc. in addition.
Embodiment
Embodiment 1:
Proportioning raw materials: polypropylene (PP) 72.5%, low pressure polyethylene (HDPE) 14%, microballon whipping agent 2%, compatilizer 2%, linking agent 0.5%, nucleator 4%, toughener 5%.Wherein polypropylene (PP) melting index 0.5g/10min, low pressure polyethylene 1.5g/10min, microballon whipping agent model F-190D, compatilizer MPP(PP-g-MAH, i.e. PP grafted maleic anhydride), crosslink agent DCP (dicumyl peroxide), nucleator nanomete talc powder, toughener hollow glass microbead (particle diameter is between 15-135 micron).
Preparation method
1, foamed material premix: weigh each component by formula, add in mixing machine, mixes 20 minutes at normal temperatures;
2, feeding: above-mentioned compound is added in the hopper of twin screw extruder with self-feeder; Twin screw extruder is Φ 120mm single screw extrusion machine, and screw slenderness ratio is 38:1.
3, plasticizing foaming: after closing exhaust system, by compound by extruder temperature 170 DEG C-220 DEG C, screw speed 30 revs/min-150 revs/min, carries out plastifying and foams.
4, extrusion foaming plate: according to foaming plate specifications and models specification of quality, regulates the gap of foaming plate squeezing mould and the roll spacing of width and three-roller calendar, makes plasticizing foamed material enter three-roller calendar from plate squeezing mould; Install a self balancing gear type melt pressure pump between hopper end and plate squeezing mould, extrusion die die lip is provided with adjustable bolt, when producing the foaming plate of different thickness, and can manual regulation width baffle plate.Die lip width L=1800 mm, goods maximum width L=1600, adopt the multiple flow passages extrusion die of rack-style.
5, cooling and shaping: by from three-roller calendar foaming plate out, through cooling and shaping roller cooling and shaping.
6, drawing-off rip cutting: the foaming plate after sizing, by width specifications requirement, completes rip cutting in drafting process.
7, shear cross cutting: the sheet material after rip cutting, enters in sheet shears, by length scale requirements, carries out cross cutting.
8, finally carry out stacking, check, pack, put in storage.
The thick 2.3mm of polypropylene fretting map sheet material of extrusion moulding, density 0.52g/cm
3, tensile strength 23.8MPa, flexural strength 33MPa, Izod notched impact strength 25Kj/m
2.
Embodiment 2:
Proportioning raw materials: polypropylene (PP) 76.0%, low pressure polyethylene (HDPE) 10%, microballon whipping agent 2.5%, compatilizer 2%, linking agent 0.5%, nucleator 4%, toughener 5%.Wherein polypropylene (PP) melting index 0.5g/10min, low pressure polyethylene 1.5g/10min, microballon whipping agent model F-190D, compatilizer MPP(PP-g-MAH, i.e. PP grafted maleic anhydride), crosslink agent DCP (dicumyl peroxide), nucleator nanomete talc powder, toughener hollow glass microbead (particle diameter is between 15-135 micron).
Preparation method is with embodiment 1.
The thick 3.1mm of polypropylene fretting map sheet material of extrusion moulding, density 0.41g/cm
3, tensile strength 20.7MPa, flexural strength 25.8MPa, Izod notched impact strength 23Kj/m
2.
Embodiment 3:
Proportioning raw materials: polypropylene (PP) 78.5%, low pressure polyethylene (HDPE) 7%, microballon whipping agent 3%, compatilizer 2%, linking agent 0.5%, nucleator 4%, toughener 5%.Wherein polypropylene (PP) melting index 0.5g/10min, low pressure polyethylene 1.5g/10min, microballon whipping agent model F-190D, compatilizer MPP(PP-g-MAH, i.e. PP grafted maleic anhydride), crosslink agent DCP (dicumyl peroxide), nucleator nanomete talc powder, toughener hollow glass microbead (particle diameter is between 15-135 micron).
Preparation method is with embodiment 1.
The thick 4.1mm of polypropylene fretting map sheet material of extrusion moulding, density 0.32g/cm
3, tensile strength 18.5MPa, flexural strength 20.9MPa, Izod notched impact strength 16.8Kj/m
2.
Embodiment 4:
Proportioning raw materials: polypropylene (PP) 68%, low pressure polyethylene (HDPE) 17%, microballon whipping agent 3.5%, compatilizer 2%, linking agent 0.5%, nucleator 4%, toughener 5%.Wherein polypropylene (PP) melting index 0.5g/10min, low pressure polyethylene 1.5g/10min, microballon whipping agent model F-190D, compatilizer MPP(PP-g-MAH, i.e. PP grafted maleic anhydride), crosslink agent DCP (dicumyl peroxide), nucleator nano titanium oxide, toughener hollow glass microbead (particle diameter is between 15-135 micron).
Preparation method is with embodiment 1.
The thick 4.9mm of polypropylene fretting map sheet material of extrusion moulding, density 0.25g/cm
3, tensile strength 13.9MPa, flexural strength 15.5MPa, Izod notched impact strength 10.8Kj/m
2.
Embodiment 5:
Proportioning raw materials: polypropylene (PP) 76.5%, low pressure polyethylene (HDPE) 8%, microballon whipping agent 4%, compatilizer 2%, linking agent 0.5%, nucleator 4%, toughener 5%.Wherein polypropylene (PP) melting index 0.5g/10min, low pressure polyethylene 1.5g/10min, microballon whipping agent model F-190D, compatilizer MPP(PP-g-MAH, i.e. PP grafted maleic anhydride), crosslink agent DCP (dicumyl peroxide), nucleator nano-calcium carbonate, toughener hollow glass microbead (particle diameter is between 15-135 micron).
Preparation method is with embodiment 1.
The thick 6mm of polypropylene fretting map sheet material of extrusion moulding, density 0.20g/cm
3, tensile strength 12.8MPa, flexural strength 14.5MPa, Izod notched impact strength 9.8Kj/m
2.
Claims (8)
1. with the modified polypropene fretting map sheet material that microballon whipping agent manufactures, by weight percentage, it is characterized in that: be made up of following composition: polypropylene 50-80%, low pressure polyethylene 5-15%, microballon whipping agent 2-6%, compatilizer 1-3%, linking agent 0.2-1.0%, nucleator 5-8%, toughener 1-10%.
2. the modified polypropene fretting map sheet material of microballon whipping agent manufacture according to claim 1, it is characterized in that: described polyacrylic melting index is 0.5-1.5g/10min, low pressure polyethylene melting index is 1-3g/10min.
3. the modified polypropene fretting map sheet material of microballon whipping agent manufacture according to claim 1, it is characterized in that: described microballon whipping agent is a kind of nucleocapsid structure, shell is thermoplastic propene's acid ester polymer, kernel is the sphere plastic particle of hydrocarbon polymer composition: its particle diameter is 30-40 um, initial blowing temperature is 160-170 DEG C, optimal foaming temperature 210-220 DEG C.
4. the modified polypropene fretting map sheet material of microballon whipping agent manufacture according to claim 1, is characterized in that: described compatilizer is polypropylene grafted maleic anhydride compatilizer; Linking agent is dicumyl peroxide; Nucleator is nano titanium oxide, nano-calcium carbonate or nanomete talc powder.
5. the modified polypropene fretting map sheet material of microballon whipping agent manufacture according to claim 1, it is characterized in that: described toughener is hollow glass microbead, or soda lime borosilicate glass, airtight just spherical in hollow, particle diameter is between 15-135 micron, and apparent density is between 0.12-0.60g/cm3.
6. produce the method manufacturing modified polypropene fretting map sheet material with microballon whipping agent described in claim 1, it is characterized in that: comprise the following steps:
1), foamed material premix: by formula: polypropylene 50-80%, low pressure polyethylene
5-20%, microballon whipping agent 5-8%, compatilizer 1-3%, linking agent 0.2-1.0%, nucleator 5-8%, toughener 1-10%, weigh each component, add in mixing machine, at normal temperatures mix 20 minutes;
2), feeding: above-mentioned compound is added in the hopper of twin screw extruder with self-feeder;
3), plasticizing foaming: after closing exhaust system, by compound by extruder temperature 170 DEG C-220 DEG C, screw speed 30 revs/min-150 revs/min, carries out plastifying and foam;
4), extrusion foaming plate: according to foaming plate specifications and models specification of quality, regulate the gap of foaming plate squeezing mould and the roll spacing of width and three-roller calendar, make plasticizing foamed material enter three-roller calendar from plate squeezing mould;
5), cooling and shaping: by from three-roller calendar foaming plate out, through cooling and shaping roller cooling and shaping;
6), drawing-off rip cutting: the foaming plate after sizing, by width specifications requirement, completes rip cutting in drafting process;
7), shear cross cutting: the sheet material after rip cutting, enters in sheet shears, by length scale requirements, carries out cross cutting;
8), finally carry out stacking, check, pack, put in storage.
7. the method for production modified polypropene fretting map sheet material according to claim 6, is characterized in that: described step 2) twin screw extruder be Φ 120mm single screw extrusion machine, screw slenderness ratio is 38:1.
8. the method for production modified polypropene fretting map sheet material according to claim 6, it is characterized in that: the hopper end in described step 4) and install a self balancing gear type melt pressure pump between plate squeezing mould, extrusion die die lip is provided with adjustable bolt, when producing the foaming plate of different thickness, can manual regulation width baffle plate, die lip width L=1800 mm, goods maximum width L=1600, adopt the multiple flow passages extrusion die of rack-style.
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| CN201410810565.6A CN104530561A (en) | 2014-12-24 | 2014-12-24 | Modified polypropylene microfoamed board prepared from microbead foaming agent and production method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832589A (en) * | 2017-02-23 | 2017-06-13 | 南通瑞隆新材料有限公司 | A kind of preparation method of nano-titanium dioxide modified engineering plastics |
| CN107857929A (en) * | 2017-11-27 | 2018-03-30 | 常州大学 | A kind of foam composite material and its forming method |
| CN108485168A (en) * | 2018-04-08 | 2018-09-04 | 慈溪市山今高分子塑料有限公司 | A kind of wine bottle stopper and its preparation process |
| CN111534006A (en) * | 2020-06-23 | 2020-08-14 | 上海恳大实业有限公司 | Environment-friendly sunshade resin material, environment-friendly sunshade fence and preparation method thereof |
| CN116218085A (en) * | 2023-01-03 | 2023-06-06 | 万华化学（宁波）有限公司 | High-melt-strength polypropylene material for foaming and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106832589A (en) * | 2017-02-23 | 2017-06-13 | 南通瑞隆新材料有限公司 | A kind of preparation method of nano-titanium dioxide modified engineering plastics |
| CN107857929A (en) * | 2017-11-27 | 2018-03-30 | 常州大学 | A kind of foam composite material and its forming method |
| CN108485168A (en) * | 2018-04-08 | 2018-09-04 | 慈溪市山今高分子塑料有限公司 | A kind of wine bottle stopper and its preparation process |
| CN111534006A (en) * | 2020-06-23 | 2020-08-14 | 上海恳大实业有限公司 | Environment-friendly sunshade resin material, environment-friendly sunshade fence and preparation method thereof |
| CN116218085A (en) * | 2023-01-03 | 2023-06-06 | 万华化学（宁波）有限公司 | High-melt-strength polypropylene material for foaming and preparation method thereof |
| CN116218085B (en) * | 2023-01-03 | 2024-05-03 | 万华化学（宁波）有限公司 | High-melt-strength polypropylene material for foaming and preparation method thereof |
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