CN106700272A - Low-density low-shrinkage polypropylene composite material and preparation method thereof - Google Patents
Low-density low-shrinkage polypropylene composite material and preparation method thereof Download PDFInfo
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- CN106700272A CN106700272A CN201611212455.5A CN201611212455A CN106700272A CN 106700272 A CN106700272 A CN 106700272A CN 201611212455 A CN201611212455 A CN 201611212455A CN 106700272 A CN106700272 A CN 106700272A
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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
- 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
- C08L2205/02—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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- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four 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
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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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
- C08L2207/066—LDPE (radical process)
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- Health & Medical Sciences (AREA)
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Abstract
The invention discloses a low-density low-shrinkage polypropylene composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The polypropylene composite material is prepared from the following raw materials in parts by weight: 65-80 parts of polypropylene resin, 5-15 parts of polyethylene resin, 5-20 parts of a toughening agent, 0-10 parts of a filling agent, 0.2-0.4 part of an antioxidant, 0.2-0.7 part of a lubricant, and 0.2-0.4 part of a light stabilizer. The density of the low-density low-shrinkage polypropylene composite material prepared by the invention is 0.9-0.97g/cm<3> when a molding shrinkage rate is 0.82-1.25%, and the density of an universal automotive interior trim material on the market is 0.97-1.04g/cm<3>, so that the weight can be reduced by 10-30% in comparison, and the effects of energy conservation and emission reduction are realized; the notch impact strength of the low-density low-shrinkage polypropylene composite material prepared by the invention is greater than 25KJ/m<2>, the modulus is greater than 1200MPa, and the rigidity and the tenacity are well balanced; and the preparation raw materials of the low-density low-shrinkage polypropylene composite material prepared by the invention have industrial grade finished products, and the raw materials are easy to obtain and can be directly used for industrial production.
Description
Technical field
The invention belongs to technical field of polymer materials, specifically a kind of low-density low-shrink polypropylene composite and its
Preparation method.
Background technology
Polypropylene is small due to its density, there is good physical and mechanical property and processing characteristics, cheap, is a kind of comprehensive
The universal thermoplastic of function admirable, as one of most fast kind of plastics increase of production.Yet with polypropylene material
Shrinkage factor itself is larger, generally 1.8~2.1% or so, polypropylene material is used in auto parts and components, the product after injection
Shrinkage ratio is larger, and product size is unstable, to follow-up parts assembling using making troubles.In order to reduce the receipts of material
Contracting, traditional material is typically to add mineral-filled in formula, but so obtained polypropylene material shrinkage factor is although low, but
It is density higher, same component weight can increase.Under the trend of automotive light weight technology development, these traditional materials can be gradually
It is replaced, low-density lower shrinkage material will turn into industry new lover.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of low-density low-shrink polypropylene composite
And preparation method thereof.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of low-density low-shrink polypropylene composite, is made up of by weight following raw materials according：
Further, described acrylic resin is at least one in COPP, HOPP.
Further, described polyvinyl resin is at least one in high density polyethylene (HDPE), low density polyethylene (LDPE).
Further, described toughener is ethylene-octene copolymer, ethylene-butene copolymer, ethylene propylene diene rubber, third
At least one in alkene-alpha olefin copolymer.
Further, described filler is at least in calcium carbonate, talcum powder, whisker, wollastonite, barium sulfate, mica
Kind.
Further, described antioxidant is at least one in Hinered phenols, phosphorous acid esters, monothioester kind antioxidant.
Further, described Hinered phenols antioxidant is antioxidant 1010；Phosphite ester kind antioxidant is irgasfos 168；
Monothioester kind antioxidant is thio-2 acid two (octadecyl alcolol) ester.
Further, described lubricant is Tissuemat E, stearate, N, in N- ethylene bis stearamides at least one
Kind.
Further, described light stabilizer is hindered amine light stabilizer.
It is another object of the present invention to provide a kind of preparation method of low-density low-shrink polypropylene composite, bag
Include following steps：
(1) acrylic resin, polyvinyl resin, toughener, filler, antioxidant, lubricant, light stabilization are weighed by proportioning
Agent, adds high mixer high speed mixing 5-10min together；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained low close
Degree low-shrink polypropylene composite；Wherein the barrel zone temperature of double screw extruder be 180~210 DEG C, screw speed be 350~
550r/min, melt pressure is 1.0~2.5MPa, and vacuum is -0.05~-0.1MPa.
Beneficial effects of the present invention：
1st, the obtained low-density low-shrink polypropylene composite of the present invention is the feelings of 0.82-1.25% in molding shrinkage
Under condition, density is 0.9-0.97g/cm3, the density of the general material for car interior trim parts of in the market is 0.97-1.04g/cm3, compare
Under can loss of weight 10~30%, play a part of energy-saving and emission-reduction；
2nd, low-density low-shrink polypropylene composite notch impact strength prepared by the present invention is more than 25KJ/m2, modulus
More than 1200MPa, rigidity and toughness realize well balanced；
2nd, its preparing raw material of the low-density low-shrink polypropylene composite of present invention preparation has technical grade sale of finished goods,
Raw material is easy to get and can be directly used for industrialized production.
Specific embodiment
The present invention is described in further detail with reference to specific embodiment.
Embodiment 1
Low-density low-shrink polypropylene composite in this example is made up of by weight following raw materials according：
Specific preparation method is comprised the following steps：
(1) by proportioning weigh 80 parts of acrylic resin copolymers, 10 parts of high-density polyethylene resins, 10 parts of toughener ethene-
Octene copolymer, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168,0.3 part of lubricant stearic acid calcium, 0.2 part of light stabilizer
3808PP5, adds high mixer high speed mixing 5min together；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained low close
Degree low-shrink polypropylene composite；Wherein the barrel zone temperature of double screw extruder is 200 DEG C, and screw speed is 450r/min,
Melt pressure is 1.0MPa, and vacuum is -0.05MPa.
Embodiment 2
Low-density low-shrink polypropylene composite in this example is made up of by weight following raw materials according：
Specific preparation method is comprised the following steps：
(1) by proportioning weigh 67 parts of acrylic resin copolymers, 15 parts of high-density polyethylene resins, 15 parts of toughener ethene-
Butylene copolymer, 3 parts of filler whiskers, 0.2 part of antioxidant 1010,0.15 part of irgasfos 168,0.3 part of N, N- ethylenes are double stearic
Acid amides, 0.2 part of lubricant stearic acid zinc, 0.25 part of light stabilizer 3808PP5, add high mixer high speed mixing 10min together；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained low close
Degree low-shrink polypropylene composite；Wherein the barrel zone temperature of double screw extruder is 180 DEG C, and screw speed is 550r/min,
Melt pressure is 2.5MPa, and vacuum is -0.1MPa.
Embodiment 3
Low-density low-shrink polypropylene composite in this example is made up of by weight following raw materials according：
Specific preparation method is comprised the following steps：
(1) 75 parts of acrylic resin copolymers, 10 parts of high-density polyethylene resins, 5 parts of low density polyethylene (LDPE)s are weighed by proportioning
Resin, 5 parts of toughener ethylene-octene copolymers, 5 parts of filler whiskers, 0.1 part of antioxidant 1010,0.1 part of irgasfos 168,
0.1 part of antioxidant DSTP, 0.4 part of calcium stearate, 0.3 part of Tissuemat E, 0.3 part of light stabilizer V703, add high mixer together
High speed mixes 8min；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained low close
Degree low-shrink polypropylene composite；Wherein the barrel zone temperature of double screw extruder is 210 DEG C, and screw speed is 350r/min,
Melt pressure is 1.5MPa, and vacuum is -0.08MPa.
Embodiment 4
Low-density low-shrink polypropylene composite in this example is made up of by weight following raw materials according：
Specific preparation method is comprised the following steps：
(1) 50 parts of acrylic resin copolymers, 15 parts of HOPP resins, 5 parts of high density polyethylene (HDPE) trees are weighed by proportioning
Fat, 10 parts of ethylene-octene copolymers, 10 parts of ethylene-butene copolymers, 7 parts of whiskers, 3 parts of talcum powder, 0.1 part of antioxidant 1010,
0.1 part of irgasfos 168,0.2 part of calcium stearate, 0.4 part of light stabilizer V703, add high mixer high speed mixing 10min together；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained low close
Degree low-shrink polypropylene composite；Wherein the barrel zone temperature of double screw extruder is 205 DEG C, and screw speed is 400r/min,
Melt pressure is 2MPa, and vacuum is -0.08MPa.
Preparation method and raw material according to embodiment 1 prepare comparative example 1, and its difference is to be not added with polyvinyl resin, add
10 parts of filler talcum powder.
Comparative example 1
PP composite material in this example is made up of by weight following raw materials according：
Specific preparation method is comprised the following steps：
(1) by proportioning weigh 80 parts of acrylic resin copolymers, 10 parts of talcum powder, 10 parts of toughener ethylene-octene copolymers,
0.2 part of antioxidant 1010,0.2 part of irgasfos 168,0.3 part of lubricant stearic acid calcium, 0.2 part of light stabilizer 3808PP5, together
Add high mixer high speed mixing 5min；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained poly- third
Alkene composite；Wherein the barrel zone temperature of double screw extruder is 200 DEG C, and screw speed is 450r/min, and melt pressure is
1.0MPa, vacuum is -0.05MPa.
Preparation method and raw material according to embodiment 1 prepare comparative example 2, and its difference is to add 20 parts of fillers.
Comparative example 2
PP composite material in this example is made up of by weight following raw materials according：
Specific preparation method is comprised the following steps：
(1) by proportioning weigh 60 parts of acrylic resin copolymers, 10 parts of high-density polyethylene resins, 10 parts of toughener ethene-
Octene copolymer, 20 parts of talcum powder, 0.2 part of antioxidant 1010,0.2 part of irgasfos 168,0.3 part of lubricant stearic acid calcium, 0.2
Part light stabilizer 3808PP5, adds high mixer high speed mixing 5-10min together；
(2) during the material that will be mixed puts into double screw extruder, by melting extrusion, cooling, pelletizing are obtained poly- third
Alkene composite；Wherein the barrel zone temperature of double screw extruder is 200 DEG C, and screw speed is 450r/min, and melt pressure is
1.0MPa, vacuum is -0.05MPa.
Embodiment of the present invention 1-4 and low-density low-shrink polypropylene composite Typical physical obtained in comparative example 1-2
Energy index is as shown in table 1：
The composite property index of table 1
Compared with comparative example 1-2, the present invention obtained low-density, low-shrink polypropylene composite can not only keep material
The mechanical property of material, and density is low, and shrinkage factor is small, can substitute filling high density degree material high；
Low-density low-shrink polypropylene composite of the invention obtained is used in the inside gadgets such as automobile stand column door-plate, can be with
Mitigate pts wt up to 10~30%, automobile lightweight reaches the purpose of energy-saving, emission-reducing, environment friendly；It is of the invention obtained low close
Degree low-shrink polypropylene composite its preparing raw material has a technical grade sale of finished goods, therefore raw material is easy to get and can be directly used for work
Industry metaplasia is produced.
The above-mentioned description to embodiment is to be understood that and apply this hair for ease of those skilled in the art
It is bright.Person skilled in the art obviously can easily make various modifications to case study on implementation, and described herein one
As principle be applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to implementation case here
Example, those skilled in the art's announcement of the invention, not departing from improvement that scope made and modification all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of low-density low-shrink polypropylene composite, it is characterised in that be made up of by weight following raw materials according：
Acrylic resin 65-80 parts
Polyvinyl resin 5-15 parts
Toughener 5-20 parts
Filler 0-10 parts
Antioxidant 0.2-0.4 parts
Lubricant 0.2-0.7 parts
Light stabilizer 0.2-0.4 parts.
2. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described polypropylene tree
Fat is at least one in COPP, HOPP.
3. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described polyethylene tree
Fat is at least one in high density polyethylene (HDPE), low density polyethylene (LDPE).
4. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described toughener is
At least one in ethylene-octene copolymer, ethylene-butene copolymer, ethylene propylene diene rubber, propylene-alpha olefin copolymer.
5. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described filler is
At least one in calcium carbonate, talcum powder, whisker, wollastonite, barium sulfate, mica.
6. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described antioxidant is
At least one in Hinered phenols, phosphorous acid esters, monothioester kind antioxidant.
7. low-density low-shrink polypropylene composite according to claim 6, it is characterised in that described Hinered phenols
Antioxidant is antioxidant 1010；Phosphite ester kind antioxidant is irgasfos 168；Monothioester kind antioxidant is thio-2 acid two
（Octadecyl alcolol）Ester.
8. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described lubricant is
Tissuemat E, stearate, N, at least one in N- ethylene bis stearamides.
9. low-density low-shrink polypropylene composite according to claim 1, it is characterised in that described light stabilizer
It is hindered amine light stabilizer.
10. the preparation method of the low-density low-shrink polypropylene composite as described in claim any one of 1-9, its feature exists
In comprising the following steps：
（1）Acrylic resin, polyvinyl resin, toughener, filler, antioxidant, lubricant, light stabilizer are weighed by proportioning,
High mixer high speed mixing 5-10min is added together；
（2）The material that will be mixed is put into double screw extruder, and by melting extrusion, cooling, pelletizing are obtained low-density low
Shrink polypropylene composite；Wherein the barrel zone temperature of double screw extruder be 180~210 DEG C, screw speed be 350~
550r/min, melt pressure is 1.0~2.5MPa, and vacuum is -0.05~-0.1MPa.
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| CN201611212455.5A CN106700272A (en) | 2016-12-25 | 2016-12-25 | Low-density low-shrinkage polypropylene composite material and preparation method thereof |
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| CN201611212455.5A CN106700272A (en) | 2016-12-25 | 2016-12-25 | Low-density low-shrinkage polypropylene composite material and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181103A (en) * | 2018-08-17 | 2019-01-11 | 杭州瑞沣环保科技有限公司 | A kind of dirty water collecting tank |
| CN109486027A (en) * | 2018-10-30 | 2019-03-19 | 南京聚隆科技股份有限公司 | One kind can fast ram automotive material and preparation method thereof |
| CN111073133A (en) * | 2018-10-18 | 2020-04-28 | 重庆霏欧纳科技有限公司 | Modified polypropylene resin and preparation method thereof |
| CN113150451A (en) * | 2021-04-27 | 2021-07-23 | 北京聚菱燕塑料有限公司 | Preparation method and application of whisker modified polypropylene blend material |
| CN115073851A (en) * | 2022-03-31 | 2022-09-20 | 金发科技股份有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN116622160A (en) * | 2023-05-30 | 2023-08-22 | 北方华锦化学工业股份有限公司 | High-impact-resistance low-shrinkage polypropylene resin and preparation method thereof |
Citations (1)
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| CN103030893A (en) * | 2012-12-26 | 2013-04-10 | 合肥会通新材料有限公司 | Modified polypropylene composite and preparation method thereof |
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2016
- 2016-12-25 CN CN201611212455.5A patent/CN106700272A/en active Pending
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| CN103030893A (en) * | 2012-12-26 | 2013-04-10 | 合肥会通新材料有限公司 | Modified polypropylene composite and preparation method thereof |
Non-Patent Citations (1)
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| 陈海涛 等 编著: "《塑料复合材料成型技术 难题解答》", 31 May 2011, 化学工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181103A (en) * | 2018-08-17 | 2019-01-11 | 杭州瑞沣环保科技有限公司 | A kind of dirty water collecting tank |
| CN111073133A (en) * | 2018-10-18 | 2020-04-28 | 重庆霏欧纳科技有限公司 | Modified polypropylene resin and preparation method thereof |
| CN109486027A (en) * | 2018-10-30 | 2019-03-19 | 南京聚隆科技股份有限公司 | One kind can fast ram automotive material and preparation method thereof |
| CN113150451A (en) * | 2021-04-27 | 2021-07-23 | 北京聚菱燕塑料有限公司 | Preparation method and application of whisker modified polypropylene blend material |
| CN115073851A (en) * | 2022-03-31 | 2022-09-20 | 金发科技股份有限公司 | Polypropylene composite material and preparation method and application thereof |
| CN116622160A (en) * | 2023-05-30 | 2023-08-22 | 北方华锦化学工业股份有限公司 | High-impact-resistance low-shrinkage polypropylene resin and preparation method thereof |
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Address after: High tech Zone Hefei city Anhui province 230088 City Road No. 2 Applicant after: New material Limited by Share Ltd Address before: High tech Zone Hefei city Anhui province 230088 City Road No. 2 Applicant before: Hefei Orinko Plastics Group Co., Ltd. |
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Application publication date: 20170524 |
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