CN108059771A - One kind has high melt strength, propylene micro-foaming material and preparation method thereof - Google Patents
One kind has high melt strength, propylene micro-foaming material and preparation method thereof Download PDFInfo
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- 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
- C08J9/06—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 chemical blowing agent
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- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/14—Copolymers of propene
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- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/372—Sulfides, e.g. R-(S)x-R'
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
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Abstract
The present invention provides one kind to have high melt strength, propylene micro-foaming material and preparation method thereof, and polypropylene micro-foaming material is made of PP composite material and chemical foaming agent；PP composite material is made of copolymer polypropylene, talcum powder, ethylene methacrylic acid iolon, compatilizer, antioxidant, lubricant, other auxiliary agents.With ethylene methacrylic acid iolon blended and modified polypropylene, maleic anhydride inoculated polypropylene is interfacial compatibilizer, reinforced polypropylene and the interface binding power of ethylene methacrylic acid iolon, promote ethylene methacrylic acid iolon homodisperse in polypropylene matrix, so as to effectively improve polyacrylic melt strength, the micro-foaming material of abscess densification is obtained.The polypropylene micro-foaming material density is small, and mechanical strength is high, and low-temperature flexibility is good, and scratch resistance is good, can directly be molded realization foaming, simple for process, and a kind of effective lightweighting materials will be provided for automotive light weight technology.
Description
Technical field
The invention belongs to technical field of polymer materials, and in particular to one kind has high melt strength, propylene fretting map material
Material and preparation method thereof.
Background technology
With deepening continuously for energy conservation and environmental protection theory, safety, comfortable, light weight energy saving have become future automobile development
Main trend, automotive light weight technology are played a crucial role to reducing oil consumption, reducing discharge, and research shows that vehicle weight often subtracts
Few double centner, fuel consumption per hundred kilometers can reduce by 0.3 and rise to 0.6 liter.It is most real as automotive light weight technology energy-saving and emission-reduction to mould Dai Gangyi
Selection, it is the advantages that polypropylene is because of light, inexpensive, excellent mechanical property, heat resistance, corrosion resistance, wide in automobile industry
General application.With the acceleration of automotive light weight technology step, high-performance polypropylene plastics have welcome new demand.Using injection molding
Technique introduces tens microns of abscesses to hundreds of micron-scales in polypropylene and obtains polypropylene chemical micro-foaming material, has matter
Gently, specific strength is high, sound insulation, it is heat-insulated the features such as, compared with unexpanded polypropylene, expanded polypropylene product can not only significantly reduce system
Part weight shortens molding cycle, reduces material utilization amount, saves cost, moreover it is possible to eliminate shrink mark, improve buckling deformation and the ruler of product
Very little stability.However polypropylene belongs to high crystalline polymer, processing temperature once higher than fusing point, melt strength will drastically under
Drop, melt are difficult to support cell growth, and abscess is caused to collapse, rupture.In loading process, the abscess that is unevenly distributed, which can become, to be split
The cradle of line influences the mechanical property of expanded material.Improving polyacrylic melt strength has become the preferable expanded material of acquisition
Key breakthrough point, blending addition high fondant-strength polymer, elastomer or low melting point copolymer improve strength of PP
It is a kind of most simple and effective approach.Automotive upholstery micropore described in Chinese invention application number ZL200610117789.4
Expanded polypropylene material improves the melt strength of PP composite material by the way that high melt POE is blended, obtains meeting in automobile
Adorn the PP foam material of requirement.Ethylene-methyl methacrylate ionic polymer resin is that E.I.Du Pont Company utilizes unique life
There is excellent low temperature to resist for a kind of ionic polymer resin that production. art is polymerized, trade name sarin thermoplastic resin
Impact, outstanding wear-resistant, scratch resistance, excellent melt strength stretch the characteristics such as not broken in the molten state, utilize
The characteristic blending and modifying of ethylene-methyl methacrylate iolon improves polyacrylic melt strength, improves polyacrylic
Toughness, but ethylene-methyl methacrylate iolon is different from polarity of polypropylene, it is difficult to it is uniformly dispersed in polypropylene,
Therefore the interface binding power of both solutions is needed, polyacrylic melt strength is improved, obtains high performance polypropylene fretting map material
Material.
The content of the invention
One kind has high melt strength, propylene micro-foaming material, and the polypropylene micro-foaming material is gathered by 97-98wt%
Acrylic composite is formed with 2-3wt% chemical foaming agent；
The PP composite material is prepared by weight by following raw materials according：
Further, the copolymer polypropylene is under 230 DEG C, the test condition of 2.16kg, melt flow rate (MFR) 30-
120g/10min。
Further, the ethylene-methyl methacrylate iolon is type lithium ion ethylene-methyl methacrylate ion
Key polymer, sodium-ion type ethylene-methyl methacrylate iolon, zinc ion type ethylene-methyl methacrylate ionic bond are gathered
Close at least one of object.
Further, the talcum particles mesh number is more than 10000 mesh.
Further, the compatilizer be maleic anhydride inoculated polypropylene, grafting rate 1.5%-2.0%.
Further, the antioxidant is selected from Hinered phenols antioxidant, thiosulfates kind antioxidant, phosphorous acid esters and resists
At least one of oxygen agent；Other described auxiliary agents for UV absorbers, finishing agent, light stabilizer, antistatic agent or
At least one of toner.
Further, the Hinered phenols antioxidant is antioxidant 1010, and the thiosulfates kind antioxidant is antioxygen
Agent DLTP, the phosphite ester kind antioxidant are irgasfos 168.
Further, the chemical foaming agent is the sodium acid carbonate of LDPE packages.
A kind of preparation method of high melt strength, propylene micro foaming composite material, comprises the following steps：
(1) by 54-76 parts of copolymer polypropylene, 10-20 parts of ethylene-methyl methacrylate iolon, talcum powder 10-20
Part, 2-6 parts of compatilizer, 0.2-0.4 parts of antioxidant, 0.5-1 parts of lubricant, 0-2 parts of other auxiliary agents are equal in high-speed mixer mixing
It after even, puts into parallel dual-screw extruding machine, by melting extrusion, is granulated, PP composite material is made；
(2) by the chemical foaming agent of the PP composite material of 97-98wt% and 2-3wt% after mixing, it is being molded
Machine is prepared using twice-die-opening function with high melt strength, propylene micro foaming composite material, and wherein forming temperature is 190-
210℃。
Further, the extrusion temperature of the double screw extruder is 180-200 DEG C, screw speed 350-400r/
Min, vacuum degree are-0.06-- 0.08MPa.
The method have the advantages that：
By ethylene-methyl methacrylate iolon blended and modified polypropylene, using maleic anhydride inoculated polypropylene as
Interfacial compatibilization agent, reinforced polypropylene and the interface binding power of ethylene-methyl methacrylate iolon, promote ethylene-methyl
Acrylate ionomer key polymer uniformly disperses in polypropylene matrix, so as to effectively improve polyacrylic melt strength, to bubble
Growth effectively support, the stability that abscess is promoted to increase inhibit the rupture of cell wall, obtain the fine and close fine and smooth abscess of abscess.
Ethylene-methyl methacrylate iolon can also improve polyacrylic toughness, toughness especially at low temperature,
Improve polyacrylic scratch, so as to obtain high-performance polypropylene micro-foaming material.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment.
Embodiment 1
In the present embodiment have high melt strength, propylene micro-foaming material, by 98wt% PP composite materials with
2wt% chemical foaming agent forms；
The PP composite material is prepared by weight by following raw materials according：
Specific preparation method comprises the following steps：
(1) by 76 parts of copolymer polypropylene, 10 parts of sodium-ion type ethylene-methyl methacrylate iolon, talcum powder 10
Part, 2 parts of compatilizer, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168,0.5 part of calcium stearate are mixed in high-speed mixer
10min after then putting into parallel dual-screw extruding machine, by melting extrusion, is granulated, PP composite material is made；Wherein squeeze
Go out the extrusion temperature of machine for 180-200 DEG C, screw speed 350-400r/min, vacuum degree is-0.06-- 0.08MPa.
(2) by the chemical foaming agent of the PP composite material of 98wt% and 2wt% after mixing, utilized in injection molding machine
Twice-die-opening function is prepared with high melt strength, propylene micro foaming composite material, and wherein forming temperature is 190-210 DEG C.
Embodiment 2
In the present embodiment have high melt strength, propylene micro-foaming material, by 97wt% PP composite materials with
3wt% chemical foaming agent forms；
The PP composite material is prepared by weight by following raw materials according：
Specific preparation method comprises the following steps：
(1) by 61 parts of copolymer polypropylene, 15 parts of ethylene-methyl methacrylate iolon, 20 parts of talcum powder, compatilizer
4 parts, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,1 part of PE waxes in high-speed mixer mixing 10min, then input is same
After double screw extruder, by melting extrusion, it is granulated, PP composite material is made；The extrusion temperature of wherein extruder is
180-200 DEG C, screw speed 350-400r/min, vacuum degree is-0.06-- 0.08MPa.
(2) by the chemical foaming agent of the PP composite material of 97wt% and 3wt% after mixing, utilized in injection molding machine
Twice-die-opening function is prepared with high melt strength, propylene micro foaming composite material, and wherein forming temperature is 190-210 DEG C.
Embodiment 3
In the present embodiment have high melt strength, propylene micro-foaming material, by 97wt% PP composite materials with
3wt% chemical foaming agent forms；
The PP composite material is prepared by weight by following raw materials according：
Specific preparation method comprises the following steps：
(1) by 54 parts of copolymer polypropylene, 20 parts of type lithium ion ethylene-methyl methacrylate iolon, talcum powder 20
Part, 6 parts of compatilizer, 0.15 part of antioxidant 1010,0.15 part of irgasfos 168,1 part of calcium stearate, UV absorbers 0.5
Part, 0.5 part of light stabilizer, 1 part of colorant are in high-speed mixer mixing 10min, after then putting into parallel dual-screw extruding machine, warp
Melting extrusion is crossed, is granulated, PP composite material is made；Wherein the extrusion temperature of extruder is 180-200 DEG C, and screw speed is
350-400r/min, vacuum degree are-0.06-- 0.08MPa.
(2) by the chemical foaming agent of the PP composite material of 97wt% and 3wt% after mixing, utilized in injection molding machine
Twice-die-opening function is prepared with high melt strength, propylene micro foaming composite material, and wherein forming temperature is 190-210 DEG C.
Comparative example 1
Polypropylene micro foaming composite material in this comparative example is sent out by 97wt% PP composite materials and 3wt% chemistry
Infusion forms；
The PP composite material is prepared by weight by following raw materials according：
Specific preparation method comprises the following steps：
(1) by 61 parts of copolymer polypropylene, 15 parts of zinc ion type ethylene-methyl methacrylate iolon, talcum powder 20
Then part, 0.15 part of antioxidant 1010,0.15 part of irgasfos 168,1 part of calcium stearate are thrown in high-speed mixer mixing 10min
After entering parallel dual-screw extruding machine, by melting extrusion, it is granulated, PP composite material is made；The wherein extrusion temperature of extruder
It spends for 180-200 DEG C, screw speed 350-400r/min, vacuum degree is-0.06-- 0.08MPa.
(2) by the chemical foaming agent of the PP composite material of 97wt% and 3wt% after mixing, utilized in injection molding machine
Twice-die-opening function is prepared with high melt strength, propylene micro foaming composite material, and wherein forming temperature is 190-210 DEG C.
Comparative example 2
Polypropylene micro foaming composite material in this comparative example is sent out by 97wt% PP composite materials and 3wt% chemistry
Infusion forms；
The PP composite material is prepared by weight by following raw materials according：
Specific preparation method comprises the following steps：
(1) by 61 parts of copolymer polypropylene, 20 parts of talcum powder, 0.15 part of antioxidant 1010,0.15 part of irgasfos 168, tristearin
1 part of sour calcium after then putting into parallel dual-screw extruding machine, by melting extrusion, is granulated, system in high-speed mixer mixing 10min
Obtain PP composite material；Wherein the extrusion temperature of extruder is 180-200 DEG C, screw speed 350-400r/min, vacuum
It spends for-0.06-- 0.08MPa.
(2) by the chemical foaming agent of the PP composite material of 97wt% and 3wt% after mixing, utilized in injection molding machine
Twice-die-opening function is prepared with high melt strength, propylene micro foaming composite material, and wherein forming temperature is 190-210 DEG C.
By the main physical index of PP composite material made from above-described embodiment 1-3 and comparative example 1-2 according to correlation
Examination criteria is tested, apparent density, melt strength, tensile strength, Izod notched impact strength, bending strength, bending die
Amount, the examination criteria of scratch resistance △ L and testing result are as shown in table 1 below：
Table 1:The main physical property measurement result of material is made in embodiment 1-3 and comparative example 1-2
It can be seen that from embodiment and comparative example data through ethylene-methyl methacrylate iolon blending and modifying
Polypropylene, using maleic anhydride inoculated polypropylene as Interfacial compatibilization agent, reinforced polypropylene polymerize with ethylene-methyl methacrylate ionic bond
The interface binding power of object promotes ethylene-methyl methacrylate iolon to be uniformly dispersed in polypropylene matrix, so as to effectively
Polyacrylic melt strength is improved, ethylene-methyl methacrylate iolon also improves polyacrylic toughness in addition, especially
Low-temperature flexibility improves polyacrylic scratch, so as to obtain the good high property of abscess dense uniform, excellent in mechanical performance, scratch resistance
It can polypropylene micro-foaming material.
Such as in addition UV absorbers, light stabilizer, antistatic agent, the colorant function in preparing component of the present invention
Auxiliary agent makes composite material that there are individual features also to be protected by the present invention.
It is understood that the above description of the embodiments is intended to facilitate those skilled in the art and using this hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiment without having to go through creative labor.Therefore, the invention is not restricted to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (10)
1. one kind has high melt strength, propylene micro-foaming material, it is characterised in that：The polypropylene micro-foaming material is by 97-
98 wt% PP composite materials are formed with 2-3 wt% chemical foaming agent；
The PP composite material is prepared by weight by following raw materials according：
54-76 parts of copolymer polypropylene；
10-20 parts of ethylene-methyl methacrylate iolon；
10-20 parts of talcum powder；
2-6 parts of compatilizer；
0.2-0.4 parts of antioxidant；
0.5-1 parts of lubricant；
0-2 parts of other auxiliary agents.
2. according to claim 1 have high melt strength, propylene micro foaming composite material, it is characterised in that：It is described common
Poly- polypropylene is under 230 DEG C, the test condition of 2.16kg, melt flow rate (MFR) 30-120g/10min.
3. according to claim 1 have high melt strength, propylene micro foaming composite material, it is characterised in that：The second
Alkene-methacrylate ion key polymer for type lithium ion ethylene-methyl methacrylate iolon, sodium-ion type ethylene-
At least one of methacrylate ion key polymer, zinc ion type ethylene-methyl methacrylate iolon.
4. a kind of according to claim 1 have high melt strength, propylene micro foaming composite material, it is characterised in that：It is described
Talcum particles mesh number be more than 10000 mesh.
5. according to claim 1 have high melt strength, propylene micro foaming composite material, it is characterised in that：The phase
Appearance agent be maleic anhydride inoculated polypropylene, grafting rate 1.5%-2.0%.
6. according to claim 1 have high melt strength, propylene micro foaming composite material, it is characterised in that：It is described anti-
Oxygen agent is selected from least one of Hinered phenols antioxidant, thiosulfates kind antioxidant, phosphite ester kind antioxidant；It is described its
His auxiliary agent is at least one of UV absorbers, finishing agent, light stabilizer, antistatic agent or colorant.
7. according to claim 6 have high melt strength, propylene micro foaming composite material, it is characterised in that：It is described by
Resistance phenolic antioxidant is antioxidant 1010, and the thiosulfates kind antioxidant is anti-oxidant DLTP, and the phosphorous acid esters resist
Oxygen agent is irgasfos 168.
8. according to claim 1 have high melt strength, propylene micro foaming composite material, it is characterised in that：Describedization
Learn the sodium acid carbonate that foaming agent is LDPE packages.
9. prepare has the method for high melt strength, propylene micro foaming composite material as described in claim 1, feature exists
In：Comprise the following steps：
（1）By 54-76 parts of copolymer polypropylene, 10-20 parts of ethylene-methyl methacrylate iolon, 10-20 parts of talcum powder,
2-6 parts of compatilizer, 0.2-0.4 parts of antioxidant, 0.5-1 parts of lubricant, 0-2 parts of other auxiliary agents are uniformly mixed in high-speed mixer
Afterwards, put into parallel dual-screw extruding machine, by melting extrusion, be granulated, PP composite material is made；
（2）By the chemical foaming agent of the PP composite material of 97-98 wt% and 2-3 wt% after mixing, in injection molding machine profit
It is prepared with twice-die-opening function with high melt strength, propylene micro foaming composite material, wherein forming temperature is 190-210
℃。
10. the preparation method according to claim 9 with high melt strength, propylene micro foaming composite material, feature
It is：The extrusion temperature of the double screw extruder be 180-200 DEG C, screw speed 350-400r/min, vacuum degree for-
0.06—-0.08MPa。
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| CN201711378682.XA CN108059771A (en) | 2017-12-19 | 2017-12-19 | One kind has high melt strength, propylene micro-foaming material and preparation method thereof |
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| CN201711378682.XA CN108059771A (en) | 2017-12-19 | 2017-12-19 | One kind has high melt strength, propylene micro-foaming material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110483901A (en) * | 2019-08-22 | 2019-11-22 | 江苏大易材料科技有限公司 | A kind of high-power foaming scratch-resistant polypropylene foamed material and preparation method thereof |
| CN112538208A (en) * | 2020-12-07 | 2021-03-23 | 江阴市龙山合成材料有限公司 | Micro-foaming polypropylene material and preparation method thereof |
| CN115232396A (en) * | 2022-07-12 | 2022-10-25 | 广州汽车集团股份有限公司 | Polypropylene composite material, automobile air pipe 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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| CN101486817A (en) * | 2009-02-20 | 2009-07-22 | 华南理工大学 | High melt strength polypropylene material and preparation |
| CN105001509A (en) * | 2015-06-24 | 2015-10-28 | 南京聚隆科技股份有限公司 | Polypropylene micro-foamed material with high surface quality and preparation method thereof |
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2017
- 2017-12-19 CN CN201711378682.XA patent/CN108059771A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101486817A (en) * | 2009-02-20 | 2009-07-22 | 华南理工大学 | High melt strength polypropylene material and preparation |
| CN105001509A (en) * | 2015-06-24 | 2015-10-28 | 南京聚隆科技股份有限公司 | Polypropylene micro-foamed material with high surface quality and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110483901A (en) * | 2019-08-22 | 2019-11-22 | 江苏大易材料科技有限公司 | A kind of high-power foaming scratch-resistant polypropylene foamed material and preparation method thereof |
| CN112538208A (en) * | 2020-12-07 | 2021-03-23 | 江阴市龙山合成材料有限公司 | Micro-foaming polypropylene material and preparation method thereof |
| CN115232396A (en) * | 2022-07-12 | 2022-10-25 | 广州汽车集团股份有限公司 | Polypropylene composite material, automobile air pipe 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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Application publication date: 20180522 |