CN108070150A - 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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- CN108070150A CN108070150A CN201611035139.5A CN201611035139A CN108070150A CN 108070150 A CN108070150 A CN 108070150A CN 201611035139 A CN201611035139 A CN 201611035139A CN 108070150 A CN108070150 A CN 108070150A
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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
- 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
- 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
- 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 belongs to field of polymer composite material, disclose 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 ethylene-vinyl acetate copolymer, 25 45 parts of glass fibre, 5 15 parts of pyrophyllite, 05 parts of toughener, 5 10 parts of nucleating agent, 5 10 parts of surface modification agent are prepared through mixing, extruding pelletization.Carry out the compatibility between common reinforced polypropylene and glass fibre present invention adds pyrophyllite and surface modification agent；And similar anchoring node, i.e. crosslinking points are formd between them, so as to improve the bond state of glass and acrylic resin, the separation of glass and acrylic resin is reduced, so as to greatly reduce the exposed of 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 its
Preparation method.
Background technology
Polypropylene (PP) is the highly crystalline polymer of nontoxic, odorless, tasteless milky, and molecular weight about 80,000-15 ten thousand is close
Degree only has 0.90-0.91g/cm3, it is one of kind most light in current all plastics.In addition, polypropylene is particularly stable to water,
Water absorption rate in water is only 0.01%.Although polyacrylic good moldability, because its shrinking percentage is big, about 1%~2.5%,
Easily it is recessed so thick-walled product is made, therefore to some high-precision parts, it is difficult to reach requirement.
At present mainly by adding glass fiber reinforced polypropylene, intensity, the heat distortion temperature of polypropylene material can be improved
And dimensional stability, the application field of polypropylene material is expanded, is widely used in the fields such as electronic apparatus, automobile, building.But
The phenomenon that floating fine is then susceptible to after adding in glass, floating fibre phenomenon is usually to be caused by glass emergence on the surface, and white glass is melted in plastics
It is floating during body filling flow to be exposed to appearance, radial white trace is just formed after shaping to be condensed on plastic surface, works as plastic
For black when can when shade deviation increases it is more obvious.So floating fibre phenomenon not only influences the cosmetic look of PP products, also
Influence its performance as resistance to rolled-up stock.
The content of the invention
The object of the present invention is to provide a kind of modified fiber glass reinforced polypropylene compositions and preparation method thereof, and it is floating to improve it
Fine phenomenon, and improve the correlated performance of product.
Technical scheme is as follows：
The present invention provides a kind of modified fiber glass reinforced polypropylene composition, prepared by weight by following components and
Into：
Further scheme, the glass fibre is short glass fiber, the length of 2-5mm, 7-13 microns a diameter of.
The average grain diameter of the pyrophyllite is 100 μm, compression strength 100Mpa, density 0.25g/cc.
The toughener is selected from maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer or second
Mixture more than one or both of alkene-methyl acrylate-glycidyl methacrylate.
The nucleating agent is sodium benzoate.
The surface modification agent is that ethylene bis-fatty acid amides (TAF) and silicone are 1 in mass ratio：1 is mixed
Mixture.
The present invention also provides a kind of preparation method of above-mentioned modified fiber glass reinforced polypropylene composition, including following step
Suddenly：
(1) polypropylene and ethylene-vinyl acetate copolymer are dried respectively；
(2) by proportioning, by the polypropylene of dry 30-60 parts, 1-10 parts of ethylene-vinyl acetate copolymer and 25-45
The glass fibre of part, 5-15 parts of pyrophyllite, 0-5 parts of toughener, 5-10 parts of nucleating agent, 5-10 parts of surface modification agent,
It adds in high-speed mixer, 3-5min is stirred in high-speed mixer；
(3) uniformly mixed material is added in from the charge door of double screw extruder, through double screw extruder melting extrusion,
It is granulated, is prepared into modified fiber glass reinforced polypropylene composition.
It in temperature is 50-80 DEG C that the polypropylene of the drying, which is, dry 4-5h；Ethylene-vinyl acetate copolymer is in temperature
50-80 DEG C of degree, dry 4-5h.
The processing technology of the double screw extruder is：One 160-170 DEG C of area's temperature of double screw extruder, two area's temperature
165-175 DEG C, 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 area temperature 200-
210 DEG C, 200-210 DEG C of head temperature, engine speed frequency is 15-35HZ.
The present invention compared with the existing technology, has the advantages that：
1st, pyrophyllite and surface modification agent are added in modified glass-fiber reinforced polypropylene of the invention, due to surface modification
Agent is to introduce polar group on the basis of ethylene bis-fatty acid amides, and polypropylene and glass are enhanced after being mixed with pyrophyllite
Compatibility between fiber；And similar anchoring node, i.e. crosslinking points are formd between glass fibre, polypropylene, improve glass
Bond state between fine and polypropylene reduces glass and is separated with polyacrylic.
2nd, cooperate between pyrophyllite and surface modification agent, improve the dispersiveness of glass fibre, increase polypropylene with
Glass fibre interfacial adhesion strength reduces the separation of glass and resin, so as to greatly reduce the exposed of glass.
3rd, modification fiber glass reinforced polypropylene composition prepared by the present invention has excellent mechanical property；Further, since second
Alkene-acetate ethylene copolymer has excellent resistance to low temperature, and minimum reachable -100~-70 DEG C of temperature in use, addition can
To 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 survey using injection molding machine of plastic using GB standards at 230-270 DEG C
It has a try sample, test bars size (length x width x thickness) is respectively：Tensile bars (dumbbell shape), 170.0 × 10.0 ×
4.0；Bending batten, 80.0 × 10.0 × 4.0；Non-notch impact batten, 80.0 × 10.0 × 4.0；Notch shock batten, 80.0
× 10.0 × 4.0, v-notch, notch depth 1/5.
Test sample is after temperature is (23 ± 2) DEG C, places 16h in the standard environment that humidity is (50 ± 5) % after shaping
Test its correlated performance, test environment is (23 ± 2) DEG C, humidity is (50 ± 5) %.
Tensile strength and elongation at break：It is tested by GB 1040, tensile speed 5mm/min.
Bending strength and bending modulus：It is tested by GB 9341, rate of bending 1.25mm/min.
Simply supported beam notch impact strength：It is tested by GB 1043.
Raw material used in example below is：Glass fibre is short glass fiber, the length of 2-5mm, diameter
For 7-13 microns.
The average grain diameter of pyrophyllite is 100 μm, compression strength 100Mpa, density 0.25g/cc.
Surface modification agent is that ethylene bis-fatty acid amides (TAF) and silicone are 1 in mass ratio：1 mixed it is mixed
Close object.
Embodiment 1
(1) by polypropylene in temperature 50 C, dry 4h；Ethylene-vinyl acetate copolymer is in temperature 50 C, dry 4h；
(2) weigh 60 parts dry of polypropylene, 1 part of ethylene-vinyl acetate copolymer, 25 parts of glass fibre, 5 parts
Pyrophyllite, 10 parts of nucleating agent sodium benzoate, 10 parts of surface modification agent；
(3) material weighed up in above-mentioned steps (2) is stirred into 3min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made.
The processing technology of the double screw extruder is：160 DEG C of one area's temperature of double screw extruder, two area's temperature 170
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Embodiment 2
(1) by polypropylene in 80 DEG C of temperature, dry 5h；Ethylene-vinyl acetate copolymer is in 80 DEG C of temperature, dry 5h；
(2) 40 parts dry of polypropylene, 10 parts of ethylene-vinyl acetate copolymer, 30 parts of glass fibre, 5 are weighed
Part pyrophyllite, 5 parts of toughener (maleic anhydride grafted ethene-octene copolymer and ethylene-methyl acrylate copolymer), 8
The nucleating agent sodium benzoate of part, 8 parts of surface modification agent；
(3) material weighed up in above-mentioned steps (2) is stirred into 5min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made；
The processing technology of the double screw extruder is：170 DEG C of one area's temperature of double screw extruder, two area's temperature 180
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Embodiment 3
(1) by polypropylene in temperature 60 C, dry 4h；Ethylene-vinyl acetate copolymer is in temperature 70 C, dry 5h；
(2) 40 parts dry of polypropylene, 5 parts of ethylene-vinyl acetate copolymer, 35 parts of glass fibre, 10 are weighed
The pyrophyllite, 3 parts of toughener ethylene-methyl acrylate copolymer, 5 parts of nucleating agent sodium benzoate, 5 parts of surface modification of part
Agent；
(3) material weighed up in above-mentioned steps (2) is stirred into 4min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made；
The processing technology of the double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two area's temperature 190
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Embodiment 4
(1) by polypropylene in temperature 70 C, dry 4h；Ethylene-vinyl acetate copolymer is in temperature 60 C, dry 5h；
(2) 30 parts dry of polypropylene, 5 parts of ethylene-vinyl acetate copolymer, 45 parts of glass fibre, 15 are weighed
The pyrophyllite of part, 5 parts of nucleating agent sodium benzoate, 5 parts of surface modification agent；
(3) material weighed up in above-mentioned steps (2) is stirred into 4min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made；
The processing technology of the double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two area's temperature 190
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Comparative example 1
(1) by polypropylene in temperature 50 C, dry 4h；
(2) 60 parts dry of polypropylene, 25 parts of glass fibre, 10 parts of nucleating agent sodium benzoate are weighed；
(3) material weighed up in above-mentioned steps (2) is stirred into 3min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made.
The processing technology of the double screw extruder is：160 DEG C of one area's temperature of double screw extruder, two area's temperature 170
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Comparative example 2
(1) by polypropylene in 80 DEG C of temperature, dry 5h；
(2) weighing 40 parts dry of polypropylene, 30 parts of glass fibre, 5 parts of toughener, (maleic anhydride is grafted second
Alkene-octene copolymer and ethylene-methyl acrylate copolymer), 8 parts of nucleating agent sodium benzoate；
(3) material weighed up in above-mentioned steps (2) is stirred into 5min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made；
The processing technology of the double screw extruder is：170 DEG C of one area's temperature of double screw extruder, two area's temperature 180
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Comparative example 3
(1) by polypropylene in temperature 60 C, dry 4h；
(2) 40 parts dry of polypropylene, 35 parts of glass fibre, 3 parts of toughener ethylene-methyl acrylate is weighed to be total to
Polymers, 5 parts of nucleating agent sodium benzoate；
(3) material weighed up in above-mentioned steps (2) is stirred into 4min in high-speed mixer；
(4) and then by above-mentioned uniformly mixed material the charge door of double screw extruder is added in, is melted through double screw extruder
Melt extrusion, be granulated, polypropene composition is made；
The processing technology of the double screw extruder is：180 DEG C of one area's temperature of double screw extruder, two area's temperature 190
DEG C, 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, host
Speed-frequency is 15HZ.The performance test results are shown in Table 1.
Table 1
Due to adding pyrophyllite and surface modification agent in the present invention, so as between common reinforced polypropylene and glass fibre
Compatibility；And similar anchoring node, i.e. crosslinking points are formd between glass fibre, polypropylene, improve glass and poly- third
The bond state of alkene reduces glass and is separated with polyacrylic, so as to greatly reduce the exposed of glass.
The comparison of embodiment and comparative example can be seen that modified fiber glass reinforced polypropylene produced by the present invention from upper table 1
The tensile strength of composition, elongation at break, simply supported beam notch impact strength obviously higher than material prepared by comparative example, and
The surface-brightening of product, without floating fibre.
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 (8)
1. a kind of modified fiber glass reinforced polypropylene composition, it is characterised in that：It is prepared by weight by following components：
30-60 parts of polypropylene,
1-10 parts of ethylene-vinyl acetate copolymer,
25-45 parts of glass fibre,
5-15 parts of pyrophyllite,
0-5 parts of toughener,
5-10 parts of nucleating agent,
5-10 parts of surface modification agent.
2. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The glass fibre
It is the length of 2-5mm, 7-13 microns a diameter of for short glass fiber.
3. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The pyrophyllite
Average grain diameter is 100 μm, compression strength 100Mpa, density 0.25g/cc.
4. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The toughener choosing
From maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer or ethylene-methyl acrylate-metering system
Mixture more than one or both of acid glycidyl ester.
5. a kind of modified fiber glass reinforced polypropylene composition according to claim 1, it is characterised in that：The nucleating agent 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 mixed.
7. a kind of preparation method that fiber glass reinforced polypropylene composition is modified such as claim 1-6 any one of them, feature
It is：Its step are as follows：
（1）Polypropylene and ethylene-vinyl acetate copolymer are dried respectively；
（2）By proportioning, by dried polypropylene, ethylene-vinyl acetate copolymer, glass fibre, pyrophyllite, toughener, into
Core agent and surface modification agent add in high-speed mixer and stir 3-5min；
（3）Uniformly mixed material from the charge door of double screw extruder is added in, through double screw extruder melting extrusion, is made
Grain, is prepared into modified fiber glass reinforced polypropylene composition.
8. preparation method according to claim 7, it is characterised in that：The step（1）Middle polypropylene and ethyl vinyl acetate second
Alkene copolymer is to be separately dried 4-5h under the conditions of temperature is 50-80 DEG C；
The step（3）Middle one 160-170 DEG C of area's temperature of double screw extruder, two 165-175 DEG C of area's temperature, three area temperature 180-
190 DEG C, 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, head temperature 200-210
DEG C, engine speed frequency is 15-35HZ.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320844A (en) * | 2018-10-11 | 2019-02-12 | 安庆市泽烨新材料技术推广服务有限公司 | Halogen-free flame-proof reinforced polypropylene composite material and preparation method thereof |
| CN109337206A (en) * | 2018-10-11 | 2019-02-15 | 安庆市泽烨新材料技术推广服务有限公司 | Reinforced polypropylene compound material and preparation method thereof |
| CN111393753A (en) * | 2020-05-29 | 2020-07-10 | 樊雪梅 | High-strength heat-resistant plastic |
| CN112552583A (en) * | 2019-09-26 | 2021-03-26 | 合肥杰事杰新材料股份有限公司 | Environment-friendly flame-retardant polypropylene composition and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006070960A1 (en) * | 2004-12-31 | 2006-07-06 | Kyung Dong Ceratech Co., Ltd. | Covering composite for fire resistance and sound absorption |
| CN105504489A (en) * | 2015-12-23 | 2016-04-20 | 浙江品诺新材料有限公司 | Alkali-free glass fiber reinforcing modified polypropylene composite material and preparing method thereof |
-
2016
- 2016-11-18 CN CN201611035139.5A patent/CN108070150A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006070960A1 (en) * | 2004-12-31 | 2006-07-06 | Kyung Dong Ceratech Co., Ltd. | Covering composite for fire resistance and sound absorption |
| CN105504489A (en) * | 2015-12-23 | 2016-04-20 | 浙江品诺新材料有限公司 | Alkali-free glass fiber reinforcing modified polypropylene composite material and preparing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320844A (en) * | 2018-10-11 | 2019-02-12 | 安庆市泽烨新材料技术推广服务有限公司 | Halogen-free flame-proof reinforced polypropylene composite material and preparation method thereof |
| CN109337206A (en) * | 2018-10-11 | 2019-02-15 | 安庆市泽烨新材料技术推广服务有限公司 | Reinforced polypropylene compound material and preparation method thereof |
| CN112552583A (en) * | 2019-09-26 | 2021-03-26 | 合肥杰事杰新材料股份有限公司 | Environment-friendly flame-retardant polypropylene composition and preparation method thereof |
| CN111393753A (en) * | 2020-05-29 | 2020-07-10 | 樊雪梅 | High-strength heat-resistant plastic |
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Application publication date: 20180525 |