CN109456532A - A kind of glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof - Google Patents
A kind of glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof Download PDFInfo
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- CN109456532A CN109456532A CN201710793286.7A CN201710793286A CN109456532A CN 109456532 A CN109456532 A CN 109456532A CN 201710793286 A CN201710793286 A CN 201710793286A CN 109456532 A CN109456532 A CN 109456532A
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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
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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Abstract
The invention discloses a kind of glass fiber reinforced flame-retarded polypropylene composites and preparation method thereof, by 60-80 parts of homopolypropylene matrix, non-twist glass 10-35 parts, 1-2 parts of coupling agent, 0.2-0.5 parts of other auxiliary agents, 5-10 parts of compatilizer, 0.4-0.8 parts of lubricant, 2-8 parts of fire retardant are kneaded uniformly in high speed blender, directly being granulated can obtain, the processing is simple for its operation, material therefor will not impact environment, with good rigidity, heat resistance, lower shrinkage, density is low, mechanical performance is excellent, high melt index, material is easy to process, it is low in cost, it is suitble to the product of the various complicated shapes of injection molding, to solve the high cost that prior art PP composite material is fire-retardant and enhances, the problem of mechanical property and flame retardant property cannot have both simultaneously.
Description
Technical field
The present invention relates to technical field of composite materials, specially a kind of glass fiber reinforced flame-retarded polypropylene composite and its system
Preparation Method.
Background technique
Polypropylene is polymerized as universal thermoplastic by propylene monomer, because its, easy processing small with density,
It is nontoxic to have many advantages, such as that good mechanical performance, endurance surrender property, design freedom are high, at low cost, it is widely used in each
Occasion, and can be recycled.But but compared with other high molecular materials, intensity, heat-resisting, shrinking percentage is big, easy to aging, chance
Fire it is inflammable, thus define polypropylene material in the purposes of special dimension, therefore in order to expand polypropylene material use field
Range needs to be modified polypropylene material processing.
Common fiberglass reinforced fire retardant material, at high cost, difficult processing.And some such as carbon fibers, magnesium salt whisker price are high
It is high, it is difficult to apply in common product.
A large amount of research existing to polyacrylic modification at present, such as Halogen enhance the modified polypropene patent No.
201010613173.2, flame-proof reinforced polypropylene V2 type etc..Find that PP composite material is fire-retardant and enhances by studying above
What is promoted simultaneously is inefficient, this is primarily due to PP composite material and reaches flame-retardancy requirements that the resistance of certain component must be added
Agent is fired, and the increase of fire retardant can reduce the mechanical property of PP composite material, the promotion phase of flame retardant property and mechanical property
Mutual contradiction brings certain difficulty to the research of glass fiber reinforced flame-retarded polypropylene composite.
105504505 A of patent No. CN discloses a kind of ultrahigh flame-retardant PP composite material and preparation method thereof, packet
It includes: polypropylene PP40-75%, halogenated flame retardant 10-30%, flame retardant 4-10%, filler parent granule 10-30%.Filler parent granule
It for the composite filled master batch containing talcum powder, is prepared by following components in percentage by weight: 1250 mesh talcum powder 75%, polyolefin
Elastomer 25%.Ultrahigh flame-retardant PP composite material prepared by it ensure that material with excellent mechanics, hot property
While, flame retardant property greatly improves, and anti-flammability can be increased to UL945VA grade, can be widely applied to automobile function part,
Electronic apparatus components etc..Above scheme has reached the resistance of raising PP composite material by increasing filler parent granule in the feed
Performance is fired, but the PP composite material may be only available for the production injection molding of automobile, electronic apparatus components, it cannot more extensively
Be applied to life other field, it is not very practical, be unable to satisfy the material to the application demand of other field.
Summary of the invention
The purpose of the present invention is to provide a kind of glass fiber reinforced flame-retarded polypropylene composites and preparation method thereof, pass through nothing
It twists glass, coupling agent, other auxiliary agents, compatilizer, lubricant, fire retardant to extract, to solve prior art polypropylene composite materials material
Expect the problem of fire-retardant and enhancing high cost, mechanical property and flame retardant property cannot have both simultaneously.
To achieve the above object, the invention provides the following technical scheme: a kind of glass fiber reinforced flame-retarded polypropylene composite,
Raw material composition including following parts by weight proportion: 60-80 parts of homopolypropylene matrix, non-twist glass 10-35 parts, coupling agent 1-
2 parts, 0.2-0.5 parts of other auxiliary agents, 5-10 parts of compatilizer, 0.4-0.8 parts of lubricant, 2-8 parts of fire retardant.
Preferably, by 50 parts of raw material homopolypropylene matrix, 40 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents,
5 parts of compatilizer, 0.5 part of lubricant, 6 parts of fire retardant are kneaded.
Preferably, by 60 parts of raw material homopolypropylene matrix, 30 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents,
5 parts of compatilizer, 0.5 part of lubricant, 6 parts of fire retardant are kneaded.
Preferably, by 70 parts of raw material homopolypropylene matrix, 20 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents,
5 parts of compatilizer, 0.5 part of lubricant, 6 parts of fire retardant are kneaded.
Preferably, by 80 parts of raw material homopolypropylene matrix, 10 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents,
5 parts of compatilizer, 0.5 part of lubricant, 6 parts of fire retardant are kneaded.
Preferably, the homopolypropylene matrix melt index is 18-25g/min.
Preferably, the non-twist fiberglass fiber diameter is 17 microns.
Preferably, the coupling agent is at least one of titanate coupling agent, silane coupling agent.
Preferably, other described auxiliary agents are at least one of antioxidant, UV weather resisting agent.Preferably, the compatilizer is
Homopolypropylene is the PP-g-MAH of substrate.
Preferably, the lubricant is erucyl amide, calcium stearate, magnesium stearate, stearic acid, silicone powder, PE wax, EBS
At least one of.
Preferably, the fire retardant is the mixing of melamine 0.5-1 parts, 2-5 parts of hydrobromate, 0.3-0.7 parts of bicummyl
Object.
Preferably, partial size D50≤10 μm of the fire retardant, D90≤20 μm.
The present invention provides another technical solution are as follows: a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite,
The following steps are included:
It is poured into step 1: first weighing homopolypropylene matrix, other auxiliary agents, compatilizer, lubricant, fire retardant by formula ratio
Coupling agent mixing is added in high speed blender；
Step 2: melting extrusion: twin-screw extrusion owner feeding is added in the mixture that S1 is obtained；
Step 3: non-twist glass is added by side feed material, extrusion temperature is controlled between 180-200 DEG C.
Preferably, the temperature control of the S1 high speed mixing machine is controlled in 80-100 DEG C, revolving speed in 1700-1900r/
Min, incorporation time are controlled in 3-5min.
Compared with prior art, the beneficial effects of the present invention are:
This glass fiber reinforced flame-retarded polypropylene composite and preparation method thereof, by homopolypropylene matrix, non-twist glass, idol
Join agent, other auxiliary agents, compatilizer, lubricant and fire retardant to be kneaded uniformly, directly be granulated, the processing is simple for operation, material therefor
Environment will not be impacted, with good rigidity, heat resistance, lower shrinkage, density is low, mechanical performance is excellent, melting refers to
Number is high, material is easy to process, low in cost, is suitble to the product of the various complicated shapes of injection molding, multiple to solve prior art polypropylene
Condensation material is fire-retardant and high cost, mechanical property and flame retardant property the problem of cannot having both simultaneously of enhancing.
Specific embodiment
It will be detailed below the embodiment of the present invention, however, the embodiment of the present invention is not limited thereto.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.In the embodiment of the present invention: a kind of glass fiber reinforced flame-retarded polypropylene composite, including it is following
The raw material composition of parts by weight proportion: 60-80 parts of homopolypropylene matrix, non-twist glass 10-35 parts, 1-2 parts of coupling agent, other
0.2-0.5 parts of auxiliary agent, 5-10 parts of compatilizer, 0.4-0.8 parts of lubricant, 2-8 parts of fire retardant, wherein homopolypropylene matrix is molten
Melting index is 18-25g/min, and non-twist fiberglass fiber diameter is 17 microns, and coupling agent is titanate coupling agent, in silane coupling agent
At least one, other auxiliary agents be at least one of antioxidant, UV weather resisting agent, compatilizer is that homopolypropylene is substrate
PP-g-MAH, lubricant are erucyl amide, calcium stearate, magnesium stearate, stearic acid, silicone powder, PE wax, at least one in EBS
Kind, fire retardant be melamine 0.5-1 parts, 2-5 parts of hydrobromate, 0.3-0.7 parts of bicummyl mixture, the partial size of fire retardant
D50≤10 μm, D90≤20 μm.
The present invention will be further described combined with specific embodiments below:
Embodiment one:
Take 50 parts of raw material homopolypropylene matrix, 40 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, compatilizer 5
Part, 0.5 part of lubricant, 6 parts of fire retardant.
It is matched based on above-mentioned raw materials, provides a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite, step is such as
Under:
Step 1: first weighing 50 mass parts of homopolypropylene matrix, homopolypropylene matrix melt index is 18-25g/
min；5 mass parts of compatilizer, compatilizer are the PP-g-MAH that homopolypropylene is substrate；Other 0.5 mass parts of auxiliary agent, other are helped
Agent is at least one of antioxidant, UV weather resisting agent；0.5 mass parts of lubricant, lubricant is erucyl amide, calcium stearate, hard
At least one of fatty acid magnesium, stearic acid, silicone powder, PE wax, EBS；6 mass parts of fire retardant, the μ of partial size D50≤10 of fire retardant
M, D90≤20 μm are poured into high speed blender, and at least one of coupling agent titanate coupling agent, silane coupling agent are added；
In 80-100 DEG C, revolving speed control in 1700-1900r/min, incorporation time is controlled in 3-5min for the temperature control of high-speed mixer；
Step 2: melting extrusion: twin-screw extrusion owner feeding is added in the mixture that upper step is obtained；
Step 3: non-twist 40 mass parts of glass are added by side feed material, extrusion temperature is controlled between 180-200 DEG C.
Embodiment two:
Take 60 parts of raw material homopolypropylene matrix, 30 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, compatilizer 5
Part, 0.5 part of lubricant, 6 parts of fire retardant are kneaded.
It is matched based on above-mentioned raw materials, provides a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite, step is such as
Under:
Step 1: first weighing 60 mass parts of homopolypropylene matrix, homopolypropylene matrix melt index is 18-25g/
min；5 mass parts of compatilizer, compatilizer are the PP-g-MAH that homopolypropylene is substrate；Other 0.5 mass parts of auxiliary agent, other are helped
Agent is at least one of antioxidant, UV weather resisting agent；0.5 mass parts of lubricant, lubricant is erucyl amide, calcium stearate, hard
At least one of fatty acid magnesium, stearic acid, silicone powder, PE wax, EBS；6 mass parts of fire retardant, the μ of partial size D50≤10 of fire retardant
M, D90≤20 μm are poured into high speed blender, and at least one of coupling agent titanate coupling agent, silane coupling agent are added；
In 80-100 DEG C, revolving speed control in 1700-1900r/min, incorporation time is controlled in 3-5min for the temperature control of high-speed mixer；
Step 2: melting extrusion: twin-screw extrusion owner feeding is added in the mixture that upper step is obtained；
Step 3: non-twist 30 mass parts of glass are added by side feed material, extrusion temperature is controlled between 180-200 DEG C.
Embodiment three:
Take 70 parts of raw material homopolypropylene matrix, 20 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, compatilizer 5
Part, 0.5 part of lubricant, 6 parts of fire retardant.
It is matched based on above-mentioned raw materials, provides a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite, step is such as
Under:
Step 1: first weighing 70 mass parts of homopolypropylene matrix, homopolypropylene matrix melt index is 18-25g/
min；5 mass parts of compatilizer, compatilizer are the PP-g-MAH that homopolypropylene is substrate；Other 0.5 mass parts of auxiliary agent, other are helped
Agent is at least one of antioxidant, UV weather resisting agent；0.5 mass parts of lubricant, lubricant is erucyl amide, calcium stearate, hard
At least one of fatty acid magnesium, stearic acid, silicone powder, PE wax, EBS；6 mass parts of fire retardant, the μ of partial size D50≤10 of fire retardant
M, D90≤20 μm are poured into high speed blender, and at least one of coupling agent titanate coupling agent, silane coupling agent are added；
In 80-100 DEG C, revolving speed control in 1700-1900r/min, incorporation time is controlled in 3-5min for the temperature control of high-speed mixer；
Step 2: melting extrusion: twin-screw extrusion owner feeding is added in the mixture that upper step is obtained；
Step 3: non-twist 20 mass parts of glass are added by side feed material, extrusion temperature is controlled between 180-200 DEG C.
Example IV:
Take 80 parts of raw material homopolypropylene matrix, 10 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, compatilizer 5
Part, 0.5 part of lubricant, 6 parts of fire retardant.
It is matched based on above-mentioned raw materials, provides a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite, step is such as
Under:
Step 1: first weighing 80 mass parts of homopolypropylene matrix, homopolypropylene matrix melt index is 18-25g/
min；5 mass parts of compatilizer, compatilizer are the PP-g-MAH that homopolypropylene is substrate；Other 0.5 mass parts of auxiliary agent, other are helped
Agent is at least one of antioxidant, UV weather resisting agent；0.5 mass parts of lubricant, lubricant is erucyl amide, calcium stearate, hard
At least one of fatty acid magnesium, stearic acid, silicone powder, PE wax, EBS；6 mass parts of fire retardant, the μ of partial size D50≤10 of fire retardant
M, D90≤20 μm are poured into high speed blender, and at least one of coupling agent titanate coupling agent, silane coupling agent are added；
In 80-100 DEG C, revolving speed control in 1700-1900r/min, incorporation time is controlled in 3-5min for the temperature control of high-speed mixer；
Step 2: melting extrusion: twin-screw extrusion owner feeding is added in the mixture that upper step is obtained；
Step 3: non-twist 10 mass parts of glass are added by side feed material, extrusion temperature is controlled between 180-200 DEG C.
Comparative example one: this comparative example and embodiment two compare, as the content of non-twist glass changes the inprocess shrinkage of material
Rate is substantially change, and bending modulus becomes smaller, and flame retardant rating is constant.
Comparative example two:
This comparative example and embodiment three compare, and obviously change as the molding shrinkage that the content of non-twist glass changes material has
Become, bending modulus becomes larger, and flame retardant rating is constant.
3-4, more resulting glass fiber reinforced flame-retarded polypropylene composite are compared to case study on implementation 1 and 2, performance is surveyed
Examination, using horizontal injection press injection molding standard sample, processing and forming condition injection temperature is 180-190-190 (nozzle), note
Blow pressure 30MPa, dwell time 10s, cooling time 15s, the test mode of batten is as follows:
Melt index: it is tested according to ASTM-D-1238 standard；
Heat distortion temperature: it is tested according to ASTM-D-648 standard；
Density: it is tested according to ASTM-D-792 standard；
Bending modulus: it is tested according to ASTM-D-790 standard；
Tensile strength: it is tested according to ASTM-D-638 standard；
Elongation at break: it is tested according to ASTM-D-638 standard；
Molding audience ratings: it is tested according to GB/T15585-1995 standard；
Izod notched impact properties: it is tested according to ASTM-D-256 standard；
Anti-flammability: it is tested according to UL94 standard；
One test performance of table is as follows:
To sum up: the result as shown in table one it is found that glass fiber reinforced flame-retarded polypropylene composite of the present invention have it is good just
Property, heat resistance, lower shrinkage, density is low, mechanical performance is excellent, high melt index, material are easy to process, suitable injection molding low in cost
The product of various complicated shapes.
The comparison of case study on implementation 4 is known as the increase change of non-twist glass fiber content is so that bending modulus by case study on implementation 1
Increase, tensile strength enhancing, notch shock increase, heat resistance enhancing, flame retardant property are constant, the mechanical performance of material can be with
The content of non-twist glass increases or decreases and changes.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (15)
1. a kind of glass fiber reinforced flame-retarded polypropylene composite, which is characterized in that the raw material group including following parts by weight proportion
At: 60-80 parts of homopolypropylene matrix, non-twist glass 10-35 parts, 1-2 parts of coupling agent, 0.2-0.5 parts of other auxiliary agents, compatilizer
5-10 parts, 0.4-0.8 parts of lubricant, 2-8 parts of fire retardant.
2. a kind of glass fiber reinforced flame-retarded polypropylene composite according to claim 1, which is characterized in that by raw material homopolymerization
50 parts of polypropylene matrix, 40 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, 5 parts of compatilizer, 0.5 part of lubricant, resistance
6 parts of agent of combustion is kneaded.
3. a kind of glass fiber reinforced flame-retarded polypropylene composite according to claim 1, which is characterized in that by raw material homopolymerization
60 parts of polypropylene matrix, 30 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, 5 parts of compatilizer, 0.5 part of lubricant, resistance
6 parts of agent of combustion is kneaded.
4. a kind of glass fiber reinforced flame-retarded polypropylene composite according to claim 1, which is characterized in that by raw material homopolymerization
70 parts of polypropylene matrix, 20 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, 5 parts of compatilizer, 0.5 part of lubricant, resistance
6 parts of agent of combustion is kneaded.
5. a kind of glass fiber reinforced flame-retarded polypropylene composite according to claim 1, which is characterized in that by raw material homopolymerization
80 parts of polypropylene matrix, 10 parts of non-twist glass, 2 parts of coupling agent, 0.5 part of other auxiliary agents, 5 parts of compatilizer, 0.5 part of lubricant, resistance
6 parts of agent of combustion is kneaded.
6. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one according to claim 1, which is characterized in that
The homopolypropylene matrix melt index is 18-25g/min.
7. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one according to claim 1, which is characterized in that
The non-twist fiberglass fiber diameter is 17 microns.
8. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one according to claim 1, which is characterized in that
The coupling agent is at least one of titanate coupling agent, silane coupling agent.
9. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one according to claim 1, which is characterized in that
Other described auxiliary agents are at least one of antioxidant, UV weather resisting agent.
10. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one, feature exist according to claim 1
In the compatilizer is the PP-g-MAH that homopolypropylene is substrate.
11. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one, feature exist according to claim 1
In the lubricant is at least one of erucyl amide, calcium stearate, magnesium stearate, stearic acid, silicone powder, PE wax, EBS.
12. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one, feature exist according to claim 1
In, the fire retardant be melamine 0.5-1 parts, the mixture of 2-5 parts of hydrobromate, 0.3-0.7 parts of bicummyl.
13. a kind of glass fiber reinforced flame-retarded polypropylene composite described in -5 any one, feature exist according to claim 1
In, partial size D50≤10 μm of the fire retardant, D90≤20 μm.
14. a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite according to claim 1, feature exist
In, comprising the following steps:
S1: homopolypropylene matrix, other auxiliary agents, compatilizer, lubricant, fire retardant first are weighed by formula ratio and pours into high speed mixing
Coupling agent mixing is added in device；
S2: melting extrusion: twin-screw extrusion owner feeding is added in the mixture that S1 is obtained；
S3: non-twist glass is added by side feed material, extrusion temperature controls between 180-200 DEG C.
15. a kind of preparation method of glass fiber reinforced flame-retarded polypropylene composite according to claim 14, feature exist
In the temperature control of the S1 high speed mixing machine is controlled in 80-100 DEG C, revolving speed in 1700-1900r/min, incorporation time control
System is in 3-5min.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110982177A (en) * | 2019-12-25 | 2020-04-10 | 苏州和塑美科技有限公司 | Flame-retardant heat-conducting nano composite material and preparation method and application thereof |
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