CN106810755A - A kind of modified fiber glass reinforced polypropylene composition and preparation method thereof - Google Patents
A kind of modified fiber glass reinforced polypropylene composition and preparation method thereof Download PDFInfo
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- CN106810755A CN106810755A CN201510873913.9A CN201510873913A CN106810755A CN 106810755 A CN106810755 A CN 106810755A CN 201510873913 A CN201510873913 A CN 201510873913A CN 106810755 A CN106810755 A CN 106810755A
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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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- 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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
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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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Abstract
The invention discloses a kind of modified fiber glass reinforced polypropylene composition and preparation method thereof, it is by 30 60 parts of polypropylene, 1 10 parts of polyethylene, 25 45 parts of glass fibre, 5 15 parts of hollow glass micropearl, 05 parts of toughener, 5 10 parts of nucleator, 5 10 parts of surface modification agent is blended, extruding pelletization is prepared from.Present invention adds the compatibility that hollow glass micropearl and surface modification agent come between common RPP and glass fibre；And similar anchoring node, i.e. crosslinking points are formd between them, so as to improve the bond state of glass and acrylic resin, reduce glass and separated with acrylic resin, so as to greatly reduce exposing for glass.
Description
Technical field
The invention belongs to field of polymer composite material, and in particular to a kind of modified fiber glass reinforced polypropylene composition and preparation method thereof.
Background technology
Polypropylene is the highly crystalline polymer of nontoxic, odorless, tasteless milky, molecular weight about 80,000-15 ten thousand, and density only has 0. 90-0. 91g/cm3, it is one of most light kind in current all plastics.In addition, polypropylene is particularly stable to water, the water absorption rate in water is only 0. 01%.Polypropylene is good, but because its shrinkage factor is big, about 1% ~ 2.5%, so being made thick article depression easily occurs, therefore to some dimensional accuracies part higher, it is difficult to reach requirement.
It is main at present to improve intensity, heat distortion temperature and the dimensional stability of polypropylene material by adding glass fiber reinforced polypropylene, the application field of polypropylene material is expanded, it is widely used in the fields such as electronic apparatus, automobile, building.
But then easily occur floating fine phenomenon after adding glass, floating fibre phenomenon is usually to be caused by glass emergence on the surface, white glass is floated during plastic melt filling flow and is exposed to appearance, radial white vestige just is formed on plastic surface after shaping to be condensed, can be more obvious because shade deviation is increased when plastic is for black.So floating fibre phenomenon not only influences the cosmetic look of PA products, its performance as resistance to rolled-up stock is had an effect on.
The content of the invention
It is an object of the invention to provide a kind of modified fiber glass reinforced polypropylene composition and preparation method thereof.
Technical scheme is as follows：
The invention provides a kind of modified fiber glass reinforced polypropylene composition, said composition is prepared from by weight by following components：
Polypropylene 30-60 parts,
Polyethylene
1-10 parts,
Glass fibre 25-45 parts,
Hollow glass micropearl 5-15 parts,
Toughener
0-5 parts,
Nucleator
5-10 parts,
5-10 parts of surface modification agent.
Further scheme, described glass fibre is short glass fiber, and its length is 2-5mm, a diameter of 7-13 microns.
The average grain diameter of described hollow glass micropearl is 100 μm, compression strength is 100Mpa, density is 0.25g/cc.
Described toughener is selected from one or more in maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer or ethylene-methyl acrylate-glyceryl methacrylate.
The nucleator is Sodium Benzoate.
The surface modification agent is ethylene bis-fatty acid amides（TAF）In mass ratio it is 1 with silicone：1 mixture for being mixed.
Present invention also offers a kind of preparation method of above-mentioned modified fiber glass reinforced polypropylene composition, comprise the following steps：
（1）Polypropylene and polyethylene are dried respectively；
（2）By proportioning, by dry 30-60 parts polypropylene, 1-10 parts of polyethylene and 25-45 parts of glass fibre, 5-15 part of hollow glass micropearl, 0-5 parts of toughener, 5-10 parts of nucleator, 5-10 parts of surface modification agent, add in high-speed mixer, 3-5min is stirred in high-speed mixer；
（3）Well mixed material is added from the charge door of double screw extruder, through double screw extruder melting extrusion, granulation, modified fiber glass reinforced polypropylene composition is prepared into.
Described dry polypropylene be temperature be 50-80 DEG C, dry 4-5h；Polyethylene dries 4-5h in 50-80 DEG C of temperature.
The processing technology of described double screw extruder is：160-170 DEG C of the area's temperature of double screw extruder one, two 165-175 DEG C of area's temperature, three 180-190 DEG C of area's temperature, four 195-205 DEG C of area's temperature, five 195-205 DEG C of area's temperature, six 200-210 DEG C of area's temperature, 200-210 DEG C of head temperature, engine speed is 15-35HZ.
The present invention compared with the existing technology, has the advantages that：
1st, hollow glass micropearl and surface modification agent are added in modified glass-fiber RPP of the invention, because TAF is to introduce polar group on the basis of ethylene bis-fatty acid amides in surface modification agent, it enhances the compatibility between polypropylene and glass fibre after mixing with hollow glass micropearl；And similar anchoring node, i.e. crosslinking points are formd between glass fibre, polypropylene, and the bond state between glass and polypropylene is improved, reduce glass and separated with polyacrylic.
2nd, cooperated between hollow glass micropearl and surface modification agent, improve the dispersiveness of glass fibre, increase polypropylene and glass fibre interfacial adhesion strength, reduced glass and separated with resin, so as to greatly reduce exposing for glass.
3rd, modified fiber glass reinforced polypropylene composition prepared by the present invention has excellent mechanical property；Further, since polyethylene has excellent resistance to low temperature, its reachable -100 ~ -70 °C of minimum temperature in use, its addition can improve the resistance to low temperature of polypropene composition.
Specific embodiment
The present invention is further illustrated with reference to embodiments.
Measuring mechanical property method：
Polypropene composition prepared by the present invention is molded into test sample using injection molding machine of plastic using GB standards at 230-270 DEG C, its test bars size（Length x width x thickness）Respectively：Tensile bars（Dumbbell shape）, 170.0 × 10.0 × 4.0；Bending batten, 80.0 × 10.0 × 4.0；Non-notch impacts batten, 80.0 × 10.0 × 4.0；Notch shock batten, 80.0 × 10.0 × 4.0, V type breach, notch depth is 1/5.
After shaping test sample temperature be (23 ± 2) DEG C, humidity for the standard environment of (50 ± 5) % in place 16h after test its correlated performance, test environment is that (23 ± 2) DEG C, humidity are (50 ± 5) %.
Tensile strength and elongation at break：Tested by GB 1040, draw speed is 5mm/min.
Bending strength and bending modulus：Tested by GB 9341, rate of bending is 1.25mm/min.
Simply supported beam notch impact strength：Tested by GB 1043.
Raw material used in example below is：Glass fibre is short glass fiber, and its length is 2-5mm, a diameter of 7-13 microns.
The average grain diameter of hollow glass micropearl is 100 μm, compression strength is 100Mpa, density is 0.25g/cc.
Surface modification agent is ethylene bis-fatty acid amides（TAF）In mass ratio it is 1 with silicone：1 mixture for being mixed.
Embodiment 1
（1）By polypropylene in temperature 50 C, 4h is dried；Polyethylene dries 4h in temperature 50 C；
（2）Weigh dry 60 parts of polypropylene, 1 part of polyethylene, 25 parts of glass fibre, 5 parts of hollow glass micropearl, 10 parts of nucleator Sodium Benzoate, 10 parts of surface modification agent；
（3）By above-mentioned steps（2）In the material that weighs up 3min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation is obtained polypropene composition.
The processing technology of described double screw extruder is：160 DEG C of one area's temperature of double screw extruder, two 170 DEG C of area's temperature, three 185 DEG C of area's temperature, four 185 DEG C of area's temperature, five 200 DEG C of area's temperature, six 200 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Embodiment 2
（1）By polypropylene in 80 DEG C of temperature, 5h is dried；Polyethylene dries 5h in 80 DEG C of temperature；
（2）Weigh dry 40 parts of polypropylene, 10 parts of polyethylene, 30 parts of glass fibre, 5 parts of hollow glass micropearl, 5 parts of toughener（Maleic anhydride grafted ethene-octene copolymer and ethylene-methyl acrylate copolymer）, 8 parts of nucleator Sodium Benzoate, 8 parts of surface modification agent；
（3）By above-mentioned steps（2）In the material that weighs up 5min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation is obtained polypropene composition；
The processing technology of described double screw extruder is：170 DEG C of one area's temperature of double screw extruder, two 180 DEG C of area's temperature, three 195 DEG C of area's temperature, four 200 DEG C of area's temperature, five 210 DEG C of area's temperature, six 190 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Embodiment 3
（1）By polypropylene in temperature 60 C, 4h is dried；Polyethylene dries 5h in temperature 70 C；
（2）Weigh dry 40 parts of polypropylene, 5 parts of polyethylene, 35 parts of glass fibre, 10 parts of hollow glass micropearl, 3 parts of toughener ethylene-methyl acrylate copolymer, 5 parts of nucleator Sodium Benzoate, 5 parts of surface modification agent；
（3）By above-mentioned steps（2）In the material that weighs up 4min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation is obtained polypropene composition；
The processing technology of described double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two 190 DEG C of area's temperature, three 200 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 195 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Embodiment 4
（1）By polypropylene in temperature 70 C, 4h is dried；Polyethylene dries 5h in temperature 60 C；
（2）Weigh dry 30 parts of polypropylene, 5 parts of polyethylene, 45 parts of glass fibre, 15 parts of hollow glass micropearl, 5 parts of nucleator Sodium Benzoate, 5 parts of surface modification agent；
（3）By above-mentioned steps（2）In the material that weighs up 4min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation is obtained polypropene composition；
The processing technology of described double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two 190 DEG C of area's temperature, three 200 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 195 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Comparative example 1
（1）By polypropylene in temperature 60 C, 5h is dried；Polyethylene dries 5h in temperature 60 C；
（2）Weigh dry 50 parts of polypropylene, 35 parts of glass fibre, 5 parts of toughener, 5 parts of nucleator Sodium Benzoate；
（3）By above-mentioned steps（2）In the material that weighs up 5min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation；
The processing technology of described double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two 190 DEG C of area's temperature, three 200 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 195 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Comparative example 2
（1）By polypropylene in temperature 50 C, 5h is dried；Polyethylene dries 4-5h in temperature 50 C；
（2）Weigh dry 40 parts of polypropylene, 35 parts of glass fibre, 5 parts of toughener, 5 parts of nucleator Sodium Benzoate；
（3）By above-mentioned steps（2）In the material that weighs up 5min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation；
The processing technology of described double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two 190 DEG C of area's temperature, three 200 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 195 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Comparative example 3
（1）By polypropylene in 150 DEG C of temperature, 5h is dried；Polyethylene dries 4-5h in temperature 60 C；
（2）Weigh dry 40 parts of polypropylene, 35 parts of glass fibre, 5 parts of toughener, 5 parts of nucleator Sodium Benzoate；
（3）By above-mentioned steps（2）In the material that weighs up 5min is stirred in high-speed mixer；
（4）Then above-mentioned well mixed material is added the charge door of double screw extruder, through double screw extruder melting extrusion, granulation；
The processing technology of described double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two 190 DEG C of area's temperature, three 200 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 195 DEG C of area's temperature, 210 DEG C of head temperature, engine speed is 15HZ.The performance test results are shown in Table 1.
Table 1
| Performance | Method of testing | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Bending strength | GB 9341 | MPa | 83 | 101 | 115 | 136 | 70 | 72 | 76 |
| Bending modulus | GB 9341 | MPa | 4245 | 4442 | 4563 | 5224 | 3100 | 3700 | 3230 |
| Tensile strength | GB 1040 | MPa | 72 | 77 | 73 | 82 | 55 | 54 | 52 |
| Elongation at break | GB 1040 | % | 35 | 22 | 24 | 20 | 5 | 4 | 4 |
| Simply supported beam notch impact strength | GB 1043 | 30 | 28 | 28 | 29 | 11 | 12 | 12 | |
| Article surface | Light, without floating fibre | Light, without floating fibre | Light, without floating fibre | Light, without floating fibre | There is floating fibre | There is floating fibre | There is floating fibre |
The present invention is due to adding the compatibility that hollow glass micropearl and surface modification agent come between common RPP and glass fibre；And similar anchoring node, i.e. crosslinking points are formd between glass fibre, polypropylene, and glass and polyacrylic bond state are improved, reduce glass and separated with polyacrylic, so as to greatly reduce exposing for glass.
Embodiment and comparative example relatively can be seen that from upper table 1, bending strength, bending modulus, tensile strength, elongation at break, the simply supported beam notch impact strength of obtained modified fiber glass reinforced polypropylene composition of the invention are obviously higher than material prepared by comparative example, and the surface-brightening of product, without floating fibre.
The above-mentioned description to embodiment is to be understood that and apply the present invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiments, and General Principle described herein is applied in other embodiment without by performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art's announcement of the invention, does not depart from improvement that scope made and modification all should be within protection scope of the present invention.
Claims (8)
1. a kind of modified fiber glass reinforced polypropylene composition, it is characterised in that：It is prepared from by weight by following components：
Polypropylene 30-60 parts,
Polyethylene 1-10 parts,
Glass fibre 25-45 parts,
Hollow glass micropearl 5-15 parts,
Toughener 0-5 parts,
Nucleator 5-10 parts,
Surface modification agent
5-10 parts.
2. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The glass fibre is short glass fiber, and its length is 2-5mm, a diameter of 7-13 microns.
3. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The average grain diameter of the hollow glass micropearl is 100 μm, compression strength is 100Mpa, density is 0.25g/cc.
4. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The toughener is selected from one or more in maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer or ethylene-methyl acrylate-glyceryl methacrylate.
5. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The nucleator is
Sodium Benzoate.
6. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The surface modification agent is that ethylene bis-fatty acid amides and silicone are 1 in mass ratio：1 mixture for being mixed.
7. the preparation method of a kind of modified fiber glass reinforced polypropylene composition as described in claim any one of 1-6, it is characterised in that：Its step is as follows：
（1）Polypropylene and polyethylene are dried respectively；
（2）By proportioning, by dried polypropylene, polyethylene, glass fibre, hollow glass micropearl, toughener, nucleator and surface modification agent, 3-5min is stirred in addition high-speed mixer；
（3）Well mixed material is added from the charge door of double screw extruder, through double screw extruder melting extrusion, granulation, modified fiber glass reinforced polypropylene composition is prepared into.
8. preparation method according to claim 7, it is characterised in that：The step（1）Middle polypropylene and polyethylene are to dry 4-5h under the conditions of temperature is for 50-80 DEG C；
The step（3）160-170 DEG C of the area's temperature of middle double screw extruder one, two 165-175 DEG C of area's temperature, three 180-190 DEG C of area's temperature, four 195-205 DEG C of area's temperature, five 195-205 DEG C of area's temperature, six 200-210 DEG C of area's temperature, 200-210 DEG C of head temperature, engine speed is 15-35HZ.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107163391A (en) * | 2017-06-20 | 2017-09-15 | 苏州旭光聚合物有限公司 | Low-temperature impact-resistant modified polypropene |
| CN112724515A (en) * | 2020-12-25 | 2021-04-30 | 郑州圣莱特空心微珠新材料有限公司 | Beautifying radome base material and preparation method thereof |
| CN114672070A (en) * | 2022-03-15 | 2022-06-28 | 上海金发科技发展有限公司 | Modified glass fiber and preparation method and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044779A (en) * | 2012-12-29 | 2013-04-17 | 安徽科聚新材料有限公司 | Glass-fiber reinforced polypropylene material and preparation method thereof |
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2015
- 2015-11-30 CN CN201510873913.9A patent/CN106810755A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103044779A (en) * | 2012-12-29 | 2013-04-17 | 安徽科聚新材料有限公司 | Glass-fiber reinforced polypropylene material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107163391A (en) * | 2017-06-20 | 2017-09-15 | 苏州旭光聚合物有限公司 | Low-temperature impact-resistant modified polypropene |
| CN112724515A (en) * | 2020-12-25 | 2021-04-30 | 郑州圣莱特空心微珠新材料有限公司 | Beautifying radome base material and preparation method thereof |
| CN114672070A (en) * | 2022-03-15 | 2022-06-28 | 上海金发科技发展有限公司 | Modified glass fiber and preparation method and application thereof |
| CN114672070B (en) * | 2022-03-15 | 2023-08-29 | 上海金发科技发展有限公司 | Modified glass fiber and preparation method and application thereof |
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Application publication date: 20170609 |