CN110144085A - A kind of high endurance glass fiber reinforced polypropylene composite material and preparation method thereof - Google Patents
A kind of high endurance glass fiber reinforced polypropylene composite material and preparation method thereof Download PDFInfo
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
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- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
- C08J2451/06—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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Abstract
The invention discloses a kind of high endurance glass fiber reinforced polypropylene composite material and preparation method thereof, which includes 30~83 parts of polypropylene, 10~40 parts of glass fibre A, 5~20 parts of glass fibre B, 0.6~2 part of nanometer sepiolite, 1~6 part of compatilizer, 0.2~1 part of antioxidant and 0.2~1 part of lubricant；Glass fibre A is chopped alkali-free glass fibre, glass fibre B is the flat glass fiber that is chopped.The present invention is compounded using conventional chopped alkali-free glass fibre with special chopped flat glass fiber, and adds a nanometer dispersion for sepiolite improvement glass, and short glass fiber reinforced polypropylene material has the fatigue performance significantly improved.The manufacturing cost that also can be effectively controlled material is compounded with flat glass fiber using conventional glass fibers, high endurance fiber glass reinforced polypropylene material of the invention also has excellent mechanical performance and heat resistance, can be applied to the component for preparing the working environments such as automobile function part harshness.
Description
Technical field
The invention belongs to polymeric material fields, and in particular to a kind of high endurance glass fiber reinforced polypropylene composite material and
Preparation method.
Background technique
With the fast development of polypropylene material industry, market is higher and higher to the comprehensive performance requirement of polypropylene material,
Especially short glass fiber reinforced polypropylene material.Because short glass fiber reinforced polypropylene cost performance is high, processing and moulding process are simple, closely
Short glass fiber reinforced polypropylene material is gradually replacing glass fiber enhanced nylon and long glass fiber-reinforced polypropylene materials in automobile over year
The application in the fields such as functor.However working environment locating for the component in these fields is more harsh, it is desirable that material must have
Good mechanical performance and heat resistance.And these components are usually associated with vibration in operation, if used commonly
Short glass fiber reinforced polypropylene material, component will appear cracking under certain load and frequent vibration quickly.Therefore will be short
When fiber glass reinforced polypropylene material is applied to prepare the component of the high requests such as automobile function part, material is not required nothing more than with high-strength
Degree, high tenacity and high-fire resistance, while should have high fatigue durability.The patent CN1229814A being disclosed discloses note
Level glass fiber reinforced polypropylene compound is moulded, but does not account for the fatigue durability of material.Patent CN103408842A is disclosed
A kind of water pump anticorrosive endurance glass fiber reinforced polypropylene composite material and preparation method, but there is no the resistance to tired of public material
Labor degree.
Summary of the invention
The purpose of the present invention is exactly to solve the above-mentioned problems and to provide a kind of high endurance fiber glass reinforced polypropylene multiple
Condensation material and preparation method thereof realizes high fatigue performance in the mechanical performance and heat resistance for keeping composite material excellent simultaneously
It is promoted.
The object of the present invention is achieved like this:
A kind of high endurance glass fiber reinforced polypropylene composite material of the present invention, which is characterized in that including following components and again
Measure number:
Glass fibre A is the alkali-free glass fibre that is chopped；
Glass fibre B is the flat glass fiber that is chopped.
The diameter of glass fibre A is 7~20 μm in above-mentioned high endurance glass fiber reinforced polypropylene composite material.
The diameter of glass fibre B both direction is respectively d1 in above-mentioned high endurance glass fiber reinforced polypropylene composite material
=21~40 μm, d2=7~10 μm.
Polypropylene is homopolypropylene and copolymer polypropylene in above-mentioned high endurance glass fiber reinforced polypropylene composite material
At least one of, crystallinity is 40~60%, melt flow rate (MFR) at 230 DEG C of temperature, load 2.16kg is 1~
100g/10min。
The length of nanometer sepiolite is 2~4 μm in above-mentioned high endurance glass fiber reinforced polypropylene composite material, and diameter is
10~20nm.
Compatilizer is polypropylene and unsaturated acids or acid anhydrides in above-mentioned high endurance glass fiber reinforced polypropylene composite material
The polymer of grafting.
Antioxidant is Hinered phenols, hindered amines, phosphorous in above-mentioned high endurance glass fiber reinforced polypropylene composite material
At least one of esters of gallic acid, thioether class and matal deactivator.
In above-mentioned high endurance glass fiber reinforced polypropylene composite material lubricant be stearic acid esters, stearates and
At least one of amides.
The present invention also provides a kind of preparation method of high endurance glass fiber reinforced polypropylene composite material the following steps are included:
(1) prepare raw material by following components and parts by weight:
(2) polypropylene, nanometer sepiolite, compatilizer, antioxidant and lubricant is uniform in high-speed mixer and mixing；
(3) by step (2) mixed raw material from main spout feeding double screw extruder, glass fibre A and glass
Fiber B is fed by the side spout of double screw extruder, extruding pelletization；
Each area's processing temperature of double screw extruder is 190~220 DEG C, vacuum degree≤- 0.06MPa.
The present invention is compounded using conventional chopped alkali-free glass fibre with special chopped flat glass fiber, and is added
Plus nano sepiolite improves the dispersion of glass, and the short glass fiber reinforced polypropylene material of preparation has the fatigue durability significantly improved
Energy.Flat glass can increase intensity of the material in each dimension, but flat structure be easy to cause glass and resin-bonded face
Stress concentrate.Common glass and flat glass are used in compounding, in addition nanometer sepiolite improves being uniformly distributed for two kinds of glasses,
It being capable of extraneous stress suffered by active balance and padded coaming.The fiber glass reinforced polypropylene material that such glass total content is 30%
For material under conditions of periodical maximum stress 60MPa, frequency 5Hz, endurance failure cycle-index can achieve 106The order of magnitude.
The manufacturing cost that also can be effectively controlled material, high endurance of the invention are compounded with flat glass fiber using conventional glass fibers
Fiber glass reinforced polypropylene material also has excellent mechanical performance and heat resistance, can be applied to prepare the work such as automobile function part
The component of environment harshness.
Specific embodiment
Below in conjunction with comparative example 1~4 and Examples 1 to 4, the invention will be further described.
The selection of comparative example 1~4 and Examples 1 to 4 is as follows:
Polypropylene: crystallinity 45%, the melt flow rate (MFR) at 230 DEG C of temperature, load 2.16kg are 12g/
10min。
Glass fibre A: conventional chopped alkali-free glass fibre, diameter are 13 μm.
Glass fibre B: be chopped flat glass fiber, and the diameter of both direction is respectively d1=28 μm, d2=7 μm.
Nanometer sepiolite: average length is 3 μm, average diameter 16nm.
Compatilizer: the polymer that polypropylene and unsaturated acids or acid anhydrides are grafted.
Antioxidant: Hinered phenols and phosphorous acid esters
Lubricant: stearic acid esters.
Comparative example 1
65kg polypropylene, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is uniform in blender and mixing,
From main spout feeding double screw extruder, 30kg glass fibre A is fed by the side spout of double screw extruder, through melting
It squeezes out, product is made in granulation.Wherein, each heating region temperature setting is respectively as follows: 190 DEG C of an area, two areas 210 from spout to die head
DEG C, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Comparative example 2
64kg polypropylene, 1kg nanometers of sepiolites, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is mixed in height
In machine be uniformly mixed, from main spout feeding double screw extruder in, 30kg glass fibre A by double screw extruder side feed material
Mouth feeding, through melting extrusion, product is made in granulation.Wherein, each heating region temperature setting is respectively as follows: an area from spout to die head
190 DEG C, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Comparative example 3
64kg polypropylene, 1kg nanometers of sepiolites, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is mixed in height
In machine be uniformly mixed, from main spout feeding double screw extruder in, 30kg glass fibre B by double screw extruder side feed material
Mouth feeding, through melting extrusion, product is made in granulation.Wherein, each heating region temperature setting is respectively as follows: an area from spout to die head
190 DEG C, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Comparative example 4
65kg polypropylene, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is uniform in high-speed mixer and mixing,
From main spout feeding double screw extruder, 20kg glass fibre A and 10kg glass fibre B by double screw extruder side feed
Material mouth feeding, through melting extrusion, product is made in granulation.Wherein, each heating region temperature setting is respectively as follows: one from spout to die head
190 DEG C of area, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Embodiment 1
64kg polypropylene, 1kg nanometers of sepiolites, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is mixed in height
It is uniformly mixed in machine, from main spout feeding double screw extruder, 25kg glass fibre A and 5kg glass fibre B are by twin-screw
The side spout of extruder is fed, and through melting extrusion, product is made in granulation.Wherein, each heating region temperature from spout to die head
Setting is respectively as follows: 190 DEG C of an area, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Embodiment 2
64kg polypropylene, 1kg nanometers of sepiolites, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is mixed in height
It is uniformly mixed in machine, from main spout feeding double screw extruder, 20kg glass fibre A and 10kg glass fibre B are by double spiral shells
The side spout of bar extruder is fed, and through melting extrusion, product is made in granulation.Wherein, each heating region temperature from spout to die head
Degree setting is respectively as follows: 190 DEG C of an area, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Embodiment 3
64kg polypropylene, 1kg nanometers of sepiolites, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is mixed in height
It is uniformly mixed in machine, from main spout feeding double screw extruder, 10kg glass fibre A and 20kg glass fibre B are by double spiral shells
The side spout of bar extruder is fed, and through melting extrusion, product is made in granulation.Wherein, each heating region temperature from spout to die head
Degree setting is respectively as follows: 190 DEG C of an area, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Embodiment 4
63kg polypropylene, 2kg nanometers of sepiolites, 4kg compatilizer, 0.5kg antioxidant and 0.5kg lubricant is mixed in height
It is uniformly mixed in machine, from main spout feeding double screw extruder, 20kg glass fibre A and 10kg glass fibre B are by double spiral shells
The side spout of bar extruder is fed, and through melting extrusion, product is made in granulation.Wherein, each heating region temperature from spout to die head
Degree setting is respectively as follows: 190 DEG C of an area, two 210 DEG C of areas, three 220 DEG C of the areas Qu Zhijiu, ten 200 DEG C of areas.Vacuum degree -0.06MPa.
Comparative example 1~4 and Examples 1 to 4 performance evaluation mode and implementation standard:
Tensile property test: being carried out by ISO 527-2, and specimen size is 150 × 10 × 4mm, tensile speed 10mm/
min；
Bending property test: by ISO 178 carry out, specimen size be 80 × 10 × 4mm, rate of bending 2mm/min, across
Away from for 64mm；
The test of simply supported beam notch impact strength: being carried out by ISO 179-1/1eA, and specimen size is 80 × 8 × 4mm；
Heat distortion temperature: being carried out by ISO 75, and specimen size is 80 × 10 × 4mm, load 1.8MPa；
Endurance test: being carried out by ISO 527-2 and ISO13003, and specimen size is 150 × 10 × 4mm, and frequency is
5Hz, periodical maximum stress are 60MPa, stress ratio 0.1.
Test result is as shown in table 1:
1 comparative example 1~4 of table and Examples 1 to 4 the performance test results
It can be seen that high endurance fiber glass reinforced polypropylene material endurance degree of the invention has and significantly mentions in upper table
Height, wherein embodiment 4 is compared with the conventional fiber glass reinforced polypropylene material in comparative example 1, tensile strength, bending modulus and resistance to tired
Labor fails cycle-index promotion obviously, wherein failure cycle-index can reach 1.18 × 106, it is that the conventional glass of comparative example 1 increases
5 times of strong polypropylene material.Comparative example 2 is compared with the data of comparative example 3, uses the fiber glass reinforced polypropylene material of glass fibre B
Material has better tensile strength, bending modulus and heat distortion temperature, and simply supported beam notch impact strength is substantially reduced, endurance
The cycle-index that fails is promoted smaller；Comparative example 4 is compared with the sample of comparative example 1, and the compounding of glass fibre A and glass fibre B make
With can be obviously improved tensile strength, bending modulus and endurance failure cycle-index；The Comparative result of 1~embodiment of embodiment 3
From the point of view of, the proportion relation of glass fibre A and glass fibre B influence the performance of product obvious.Comparative example 4, embodiment 2 and implementation
The Comparative result of example 4 shows that the additive amount for increasing nanometer sepiolite is conducive to improve the fatigue performance of material.
The present invention is compounded using conventional chopped alkali-free glass fibre with special chopped flat glass fiber, and is added
Plus nano sepiolite improves the dispersion of glass, and the short glass fiber reinforced polypropylene material of preparation has the fatigue durability significantly improved
Energy.Item of the fiber glass reinforced polypropylene material that such glass total content is 30% in periodical maximum stress 60MPa, frequency 5Hz
Under part, endurance failure cycle-index can achieve 106The order of magnitude.It is compounded using conventional glass fibers with flat glass fiber
It can be effectively controlled the manufacturing cost of material, high endurance fiber glass reinforced polypropylene material of the invention also has excellent mechanicalness
Energy and heat resistance, can be applied to the component for preparing the working environments such as automobile function part harshness.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or modification, therefore all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (9)
1. a kind of high endurance glass fiber reinforced polypropylene composite material, which is characterized in that including following components and parts by weight:
The glass fibre A is the alkali-free glass fibre that is chopped；
The glass fibre B is the flat glass fiber that is chopped.
2. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the glass fibre
The diameter of A is 7~20 μm.
3. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the glass fibre
The diameter of B both direction is respectively d1=21~40 μm, d2=7~10 μm.
4. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the polypropylene is
At least one of homopolypropylene and copolymer polypropylene, crystallinity is 40~60%, at 230 DEG C of temperature, load 2.16kg
Melt flow rate (MFR) be 1~100g/10min.
5. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the nanometer Hai Pao
The length of stone is 2~4 μm, and diameter is 10~20nm.
6. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the compatilizer is
The polymer that polypropylene and unsaturated acids or acid anhydrides are grafted.
7. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the antioxidant is
At least one of Hinered phenols, hindered amines, phosphorous acid esters, thioether class and matal deactivator.
8. high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that the lubricant is
At least one of stearic acid esters, stearates and amides.
9. the preparation method of high endurance glass fiber reinforced polypropylene composite material as described in claim 1, which is characterized in that packet
Include following steps:
(1) prepare raw material by following components and parts by weight:
(2) polypropylene, nanometer sepiolite, compatilizer, antioxidant and lubricant is uniform in high-speed mixer and mixing；
(3) by step (2) mixed raw material from main spout feeding double screw extruder, glass fibre A and glass fibre B
It is fed by the side spout of double screw extruder, extruding pelletization；
Each area's processing temperature of the double screw extruder is 190~220 DEG C, vacuum degree≤- 0.06MPa.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548560A (en) * | 2020-05-25 | 2020-08-18 | 苏州旭光聚合物有限公司 | Low-warpage glass fiber reinforced modified polypropylene composite material |
| CN112300494A (en) * | 2020-11-23 | 2021-02-02 | 上海金发科技发展有限公司 | Alcoholysis-resistant chopped glass fiber reinforced polypropylene polymer and preparation method thereof |
| CN112375297A (en) * | 2020-11-27 | 2021-02-19 | 江苏金发科技新材料有限公司 | Glass fiber reinforced PP/PA66 composite material for water chamber of new energy automobile and preparation method thereof |
| CN112708209A (en) * | 2020-12-29 | 2021-04-27 | 上海普利特复合材料股份有限公司 | Lightweight high-strength glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN117586582A (en) * | 2024-01-18 | 2024-02-23 | 广东顺威赛特工程塑料开发有限公司 | Halogen-free weather-resistant flame-retardant ablation-resistant polypropylene composite material and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111548560A (en) * | 2020-05-25 | 2020-08-18 | 苏州旭光聚合物有限公司 | Low-warpage glass fiber reinforced modified polypropylene composite material |
| CN112300494A (en) * | 2020-11-23 | 2021-02-02 | 上海金发科技发展有限公司 | Alcoholysis-resistant chopped glass fiber reinforced polypropylene polymer and preparation method thereof |
| CN112375297A (en) * | 2020-11-27 | 2021-02-19 | 江苏金发科技新材料有限公司 | Glass fiber reinforced PP/PA66 composite material for water chamber of new energy automobile and preparation method thereof |
| CN112708209A (en) * | 2020-12-29 | 2021-04-27 | 上海普利特复合材料股份有限公司 | Lightweight high-strength glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN117586582A (en) * | 2024-01-18 | 2024-02-23 | 广东顺威赛特工程塑料开发有限公司 | Halogen-free weather-resistant flame-retardant ablation-resistant polypropylene composite material and preparation method thereof |
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