CN108148262A - A kind of glass fiber reinforced polypropylene compositions and preparation method thereof - Google Patents
A kind of glass fiber reinforced polypropylene compositions and preparation method thereof Download PDFInfo
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- CN108148262A CN108148262A CN201611105219.3A CN201611105219A CN108148262A CN 108148262 A CN108148262 A CN 108148262A CN 201611105219 A CN201611105219 A CN 201611105219A CN 108148262 A CN108148262 A CN 108148262A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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
- C08L2205/02—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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- Engineering & Computer Science (AREA)
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Abstract
The present invention provides a kind of glass fiber reinforced polypropylene compositions, 30 60 parts of polypropylene is weighed by weight, 1 10 parts of polypropylene wax, 25 45 parts of glass fibre, 05 parts of toughener, 5 10 parts of nucleating agent, 5 10 parts of surface modification agent after mixing, is added in from the charge door of double screw extruder, it through melting extrusion, is granulated, is prepared.The surface modification agent of the present invention kind enhances the compatibility between polypropylene and glass fibre after being mixed with polypropylene wax, pyrophyllite；The bond state of glass and resin is improved, reduces the separation of glass and resin；The dispersibility of glass fibre is improved, increases polypropylene and glass fibre interfacial adhesion strength, the separation of glass fibre and resin is reduced, so as to greatly reduce the exposed of glass fibre；Cross section is the short glass fiber of rectangle, it is possible to reduce floating fibre phenomenon；The short glass fiber cooperates with surface modification agent, improves glass fiber reinforced polypropylene material injection rear surface jointly and floats fibre.
Description
Technical field
The invention belongs to field of polymer composite material, and in particular to a kind of glass fiber reinforced polypropylene compositions and its
Preparation method.
Background technology
The polypropylene polymer highly crystalline for nontoxic, odorless, tasteless milky, molecular weight about 80,000-15 ten thousand, density is only
There is 0.90-0.91g/cm3, be one of kind most light in current all plastics.In addition, polypropylene is particularly stable to water, in water
In water absorption rate be only 0.01%.Although polyacrylic good moldability, because its shrinking percentage is big, about 1%~2.5%, so
Thick-walled product is made easily to be recessed, therefore to some high-precision parts, it is difficult to reach requirement.
At present mainly by adding glass fiber reinforced polypropylene, improve the intensity of polypropylene material, heat distortion temperature and
Dimensional stability expands the application field of polypropylene material, is widely used in the fields such as electronic apparatus, automobile, building.But add
The phenomenon that floating fine is then susceptible to after entering glass, floating fibre phenomenon is usually to be caused by glass emergence on the surface, and white glass is in plastic melt
It is floating during filling flow to be exposed to appearance, radial white trace is just formed after molding to be condensed on plastic surface, when plastic is
It can be more obvious when shade deviation increases during black.So floating fibre phenomenon not only influences the cosmetic look of PP products, shadow is gone back
Ring its performance as resistance to rolled-up stock.
Invention content
The object of the present invention is to provide a kind of glass fiber reinforced polypropylene compositions and preparation method thereof, improve polypropylene
The floating fine phenomenon of composition.
Technical scheme is as follows：
The present invention provides a kind of glass fiber reinforced polypropylene compositions, prepared by weight by following components and
Into：
The glass fibre be short glass fiber, the length of 2-5mm；The cross section of glass fibre is rectangle.
The toughener is selected from maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer or second
One or more of alkene-methyl acrylate-glycidyl methacrylate.
The pyrophyllite is to promote the crystallization process of molecule and accelerate crystallization rate, and molecule is made to have the nucleation of microstructure
Agent.
The surface modification agent is that ethylene bis-fatty acid amides (TAF) and silicone oil are 1 in mass ratio：1 is mixed
Mixture.
The present invention also provides a kind of preparation method of fiber glass reinforced polypropylene composition, this method includes the following steps：
(1) polypropylene and polypropylene wax are dried；
(2) weigh dried polypropylene 30-60 parts, 1-10 parts of polypropylene wax, 25-45 parts of glass fibre, toughener 0-5
5-10 parts of part, 5-10 parts of nucleating agent and surface modification agent add in high-speed mixer and stir 3-5min；
(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 fiber glass reinforced polypropylene composition.
The polyacrylic drying temperature is 50-80 DEG C, drying time 4-5h；The drying temperature of polypropylene wax is 50-
80 DEG C, drying time drying 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 is 15-35HZ.
The present invention compared with the existing technology, has the advantages that：
1st, surface modification agent is added in the present invention, since TAF is base in ethylene bis-fatty acid amides in surface modification agent
Polar group is introduced on plinth, the compatibility between polypropylene and glass fibre is enhanced after being mixed with polypropylene wax, pyrophyllite；
And similar anchoring node, i.e. crosslinking points are formd between glass fibre, basic resin, improve the bonding of glass and resin
State reduces the separation of glass and resin.
2nd, ethylene bis-fatty acid amides (TAF) cooperate between silicone oil in surface modification agent, improve glass fibre
Dispersibility, increase polypropylene and glass fibre interfacial adhesion strength, reduce the separation of glass fibre and resin, so as to greatly
Reduce the exposed of glass fibre.
3rd, present invention employs the short glass fibers that cross section is rectangle, itself can reduce floating fine phenomenon；In addition,
The short glass fiber cooperates with surface modification agent, improves glass fiber reinforced polypropylene material injection rear surface jointly
Floating fibre.
Specific embodiment
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 molding
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.
Simply supported beam notch impact strength：It is tested by GB 1043.
Glass fibre used in example below is the short glass fiber that cross section is rectangle, the length of 2-
5mm。
The surface modification agent is that ethylene bis-fatty acid amides (TAF) and silicone oil are 1 in mass ratio：1 is mixed
Mixture.
Embodiment 1
(1) polypropylene and polypropylene wax are dried into 4h under temperature 50 C；
(2) 60 parts dry of polypropylene, 1 part of polypropylene wax, 25 parts of glass fibre, 5 parts of nucleating agent leaf are weighed
Alabaster, 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 195 DEG C of area's temperature, five 200 DEG C of area's temperature, six 200 DEG C of area's temperature, 200 DEG C of head temperature, host
Rotating speed is 15HZ.The performance test results are shown in Table 1.
Embodiment 2
(1) by polypropylene and polypropylene wax at 80 DEG C of temperature dry 5h；
(2) 40 parts dry of polypropylene, 10 parts of polypropylene wax, 30 parts of glass fibre, 5 parts of toughener are weighed
(maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer), 10 parts of nucleating agent pyrophyllite, 5 parts
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 170
DEG C, three 185 DEG C of area's temperature, four 200 DEG C of area's temperature, five 200 DEG C of area's temperature, six 205 DEG C of area's temperature, 210 DEG C of head temperature, host
Rotating speed is 35HZ.The performance test results are shown in Table 1.
Embodiment 3
(1) by polypropylene in temperature 60 C, dry 4h；
(2) 40 parts dry of polypropylene, 5 parts of polypropylene wax, 35 parts of glass fibre, 3 parts of toughener (second are weighed
Alkene-methyl acrylate-glycidyl methacrylate), 8 parts of nucleating agent pyrophyllite, 8 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：160 DEG C of one area's temperature of double screw extruder, two area's temperature 165
DEG C, three 180 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 210 DEG C of area's temperature, 210 DEG C of head temperature, host
Rotating speed is 15HZ.The performance test results are shown in Table 1.
Embodiment 4
(1) by polypropylene in temperature 70 C, dry 4h；
(2) 30 parts dry of polypropylene, 5 parts of polypropylene wax, 45 parts of glass fibre, 5 parts of nucleating agent leaf are weighed
Alabaster, 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：170 DEG C of one area's temperature of double screw extruder, two area's temperature 175
DEG C, three 190 DEG C of area's temperature, four 205 DEG C of area's temperature, five 205 DEG C of area's temperature, six 210 DEG C of area's temperature, 210 DEG C of head temperature, host
Rotating speed is 15HZ.The performance test results are shown in Table 1.
Glass fibre used in following comparative example is all simple glass fiber, and cross-sectional shape is all circle.
Comparative example 1
(1) by polypropylene in temperature 60 C, dry 5h；
(2) 50 parts dry of polypropylene, 35 parts of glass fibre, 5 parts of toughener are weighed；
(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；
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
Rotating speed is 15HZ.The performance test results are shown in Table 1.
Comparative example 2
(1) by polypropylene in temperature 50 C, dry 5h；
(2) 40 parts dry of polypropylene, 35 parts of glass fibre, 5 parts of toughener are weighed；
(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；
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
Rotating speed is 15HZ.The performance test results are shown in Table 1.
Comparative example 3
(1) by polypropylene in 150 DEG C of temperature, dry 5h；
(2) weigh 40 parts dry of polypropylene, 35 parts of glass fibre, 5 parts of toughener,
(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；
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
Rotating speed is 15HZ.The performance test results are shown in Table 1.
Table 1
The comparison of embodiment and comparative example can be seen that glass fiber reinforced polypropylene compositions obtained from upper table 1
Tensile strength, elongation at break, simply supported beam notch impact strength obviously higher than material prepared by comparative example, and product
Surface-brightening, without floating fibre.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should the protection model with claim
Subject to enclosing.
Claims (8)
1. a kind of glass fiber reinforced polypropylene compositions, which is characterized in that be prepared by weight by following components：
30-60 parts of polypropylene,
1-10 parts of polypropylene wax,
25-45 parts of glass fibre,
0-5 parts of toughener,
5-10 parts of pyrophyllite,
5-10 parts of surface modification agent.
2. a kind of glass fiber reinforced polypropylene compositions as described in claim 1, it is characterised in that：The glass fibre
For short glass fiber, the length of 2-5mm；The cross section of the glass fibre is rectangle.
3. a kind of glass fiber reinforced polypropylene compositions as described in claim 1, it is characterised in that：The toughener is
Maleic anhydride grafted ethene-octene copolymer, ethylene-methyl acrylate copolymer or ethylene-methyl acrylate-methacrylic acid
At least one of ethylene oxidic ester.
4. a kind of glass fiber reinforced polypropylene compositions as described in claim 1, it is characterised in that：The surface modification agent
For ethylene bis-fatty acid amides（TAF）It is 1 in mass ratio with silicone oil：1 mixture.
5. such as a kind of preparation method of glass fiber reinforced polypropylene compositions of claim 1-4 any one of them, feature
It is, includes the following steps：
（1）Polypropylene and polypropylene wax are dried；
（2）Weigh dried polypropylene 30-60 parts, 1-10 parts of polypropylene wax, 25-45 parts of glass fibre, 0-5 parts of toughener,
5-10 parts of 5-10 parts of nucleating 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 fiber glass reinforced polypropylene composition.
6. a kind of preparation method of glass fiber reinforced polypropylene compositions as claimed in claim 5, it is characterised in that：It is described
Step（1）In polyacrylic drying temperature for 50-80 DEG C, drying time 4-5h.
7. a kind of preparation method of glass fiber reinforced polypropylene compositions as claimed in claim 5, it is characterised in that：It is described
Step（1）In polypropylene wax drying temperature for 50-80 DEG C, drying time 4-5h.
8. a kind of preparation method of glass fiber reinforced polypropylene compositions as claimed in claim 5, it is characterised in that：It is described
Step（3）In the processing technology of double screw extruder be：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 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 |
| CN110713656A (en) * | 2019-10-18 | 2020-01-21 | 江苏沃特新材料科技有限公司 | Polypropylene composite material and preparation method thereof |
| CN116656029A (en) * | 2023-06-16 | 2023-08-29 | 青岛文武港科技有限公司 | PE (polyethylene) isolation preservative film for radial tires and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284581A (en) * | 1988-08-24 | 1990-03-26 | Kuraray Co Ltd | Water repellent heat-fusible type conjugate fiber |
| 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
- 2016-12-05 CN CN201611105219.3A patent/CN108148262A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0284581A (en) * | 1988-08-24 | 1990-03-26 | Kuraray Co Ltd | Water repellent heat-fusible type conjugate fiber |
| 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 |
| CN110713656A (en) * | 2019-10-18 | 2020-01-21 | 江苏沃特新材料科技有限公司 | Polypropylene composite material and preparation method thereof |
| CN116656029A (en) * | 2023-06-16 | 2023-08-29 | 青岛文武港科技有限公司 | PE (polyethylene) isolation preservative film for radial tires and preparation method thereof |
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