CN111978638A - Fabric touch feeling-imitated polypropylene material for vehicles - Google Patents
Fabric touch feeling-imitated polypropylene material for vehicles Download PDFInfo
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- CN111978638A CN111978638A CN202010850693.9A CN202010850693A CN111978638A CN 111978638 A CN111978638 A CN 111978638A CN 202010850693 A CN202010850693 A CN 202010850693A CN 111978638 A CN111978638 A CN 111978638A
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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
- C08K2201/004—Additives being defined by their length
-
- 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
- C08K2201/016—Additives defined by their aspect ratio
-
- 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
-
- 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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a fabric-touch-like polypropylene material for vehicles, which is characterized in that: comprises polypropylene, flexible modified material, lamellar mica powder and lamellar glass flakes; the flexible modified material is at least one selected from styrene thermoplastic elastomer, block organosilicon material and polyethylene wax. According to the invention, the soft touch feeling of the polypropylene material is endowed by adding the styrene thermoplastic elastomer, the block organosilicon material and the polyethylene wax; meanwhile, the lamellar mica powder and the lamellar glass flake filler are added to play a role of a skeleton, so that the polypropylene base material has a certain texture while obtaining soft touch, and the hand feeling is closer to the fabric hand feeling.
Description
Technical Field
The invention relates to the field of polypropylene materials, in particular to a fabric-touch-like polypropylene material for vehicles.
Background
With the improvement of life quality, the quality requirements of consumers on automotive interiors, accessories and household appliances are higher and higher; taking an automobile interior trim instrument panel as an example, a hard instrument panel is usually adopted in an economic vehicle type or a hard-type SUV, namely PP (polypropylene) injection molding, and the material has strong plastic feeling, cannot give soft texture to people and often cannot meet the warm and luxurious decoration style.
"textile-like touch" is a property of plastic parts that feel a certain softness when the surface of the part is touched by hand, but at the same time, unlike the rubber touch, it also has a certain texture/bone.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides the fabric-touch-like polypropylene material for the vehicle.
In order to achieve the purpose, the invention adopts the technical scheme that: the fabric-touch-like polypropylene material for the vehicle is provided, and is characterized in that: comprises polypropylene, flexible modified material, lamellar mica powder and lamellar glass flakes; the flexible modified material is at least one selected from styrene thermoplastic elastomer, block organosilicon material and polyethylene wax.
Preferably, the organic montmorillonite-wood composite material further comprises organic montmorillonite and wood powder.
As a more preferable scheme, the organic montmorillonite is subjected to an organic treatment of a cationic surfactant; the wood powder is fir wood powder.
More preferably, the glass fiber, the flame retardant, the compatilizer and the antioxidant are also included.
The flame retardant is a more preferable scheme, and comprises 100 parts by mass of polypropylene, 15-25 parts by mass of styrene thermoplastic elastomer, 8-15 parts by mass of block organic silicon material, 2-5 parts by mass of polyethylene wax, 5-20 parts by mass of lamellar mica powder, 5-20 parts by mass of flaky glass flake filler, 3-8 parts by mass of wood powder, 3-15 parts by mass of organic montmorillonite, 10-18 parts by mass of glass fiber, 1-3 parts by mass of flame retardant, 1-2.5 parts by mass of compatilizer and 1-3 parts by mass of antioxidant.
As a preferable mode, the flow rate of the polypropylene resin under a load of 2.16kg at a temperature of 230 ℃ is 35 to 50 g/min.
As a preferable scheme, the length of the sheet diameter of the sheet-shaped mica powder is 80-100 μm, and the thickness of the sheet layer is 2-3 μm; the length of the flake diameter of the flake glass flake filler is 100-300 mu m, and the thickness of the flake layer is 2-5 mu m.
Preferably, the styrene thermoplastic elastomer is SEBS, and the total styrene content of the styrene thermoplastic elastomer is 25-40 wt%; the block organosilicon material is an organosilicon-polyurethane block copolymer, wherein the content of organosilicon is 20-30%; the molecular weight of the polyethylene wax is 3000-5000.
The invention has the beneficial technical effects that: provides a fabric-touch-like polypropylene material for vehicles. According to the invention, the soft touch feeling of the polypropylene material is endowed by adding the styrene thermoplastic elastomer, the block organosilicon material and the polyethylene wax; meanwhile, the lamellar mica powder and the lamellar glass flake filler are added to play a role of a skeleton, so that the polypropylene base material has a certain texture while obtaining soft touch, and the hand feeling is closer to the fabric hand feeling.
Detailed Description
The invention is further described with reference to specific examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Example 1
A fabric-touch-like polypropylene material for vehicles comprises the following components: 100 parts of polypropylene, 15 parts of styrene thermoplastic elastomer, 15 parts of block organic silicon material, 3 parts of polyethylene wax, 10 parts of lamellar mica powder, 12 parts of lamellar glass flake filler, 5 parts of wood powder, 12 parts of organic montmorillonite, 15 parts of glass fiber, 1 part of flame retardant, 2.5 parts of compatilizer and 2 parts of antioxidant.
Wherein: the flow rate of the polypropylene resin at a temperature of 230 ℃ under a load of 2.16kg is 35 to 50 g/min.
The styrene thermoplastic elastomer is SEBS which is a linear triblock copolymer (namely hydrogenated SBS) taking polystyrene as an end section and taking an ethylene-butylene copolymer obtained by hydrogenating polybutadiene as a middle elastic block, and the total styrene content of the styrene triblock copolymer is 25-40 wt%; the block organosilicon material is organosilicon-polyurethane block copolymer, wherein the content of organosilicon is 20-30%; the molecular weight of the polyethylene wax is 3000-5000; the three are added to obtain a soft touch to the polypropylene substrate.
The length of the sheet diameter of the sheet-shaped mica powder is 80-100 mu m, and the thickness of the sheet layer is 2-3 mu m; the length of the sheet diameter of the flaky glass flake filler is 100-300 mu m, and the thickness of the sheet layer is 2-5 mu m; the addition of the two components can form a layer-by-layer staggered and superposed arrangement state in the polypropylene base material, and the polypropylene base material can play a role of a framework, so that the polypropylene base material has certain texture while obtaining soft touch, and the hand feeling is closer to the fabric hand feeling.
The wood flour is a novel energy-saving renewable environment-friendly raw material, and can be used as a filling material for various products such as paper making, living goods, outdoor decorative materials and the like. When the temperature is higher than 100 ℃, wood powder in the processing process is subjected to thermal degradation reaction to different degrees, so that the color of the wood powder is changed from light yellow to coffee, and the polypropylene material can have a certain fabric coating effect by combining the color of the material and the design of a mold. In addition, the unique microstructure and flavor profile of wood flour not only reduces material odor, but also changes material flavor profile. The Chinese fir wood powder is selected as the wood powder in the invention.
The organic montmorillonite is organically treated by the cationic surfactant alkyl quaternary ammonium salt, so that the compatibility with the polypropylene substrate can be improved; is beneficial to improving the strength of the polypropylene composite material and can endow the polypropylene composite material with certain texture.
The glass fiber is used for enhancing the tensile strength of the composite material, and the length of the glass fiber is 15-20 mm; the flame retardant is magnesium stearate, which has good flame retardance, does not contain phosphorus halide and is green and environment-friendly; the compatilizer is maleic anhydride grafted polypropylene (PP-g-MAH); the antioxidant is hindered phenol antioxidant.
The substance is prepared by the methods of dry mixing of raw materials, melt extrusion, cooling and granulation.
Example 2
A fabric-touch-like polypropylene material for vehicles comprises the following components: 100 parts of polypropylene, 18 parts of styrene thermoplastic elastomer, 12 parts of block organic silicon material, 5 parts of polyethylene wax, 5 parts of lamellar mica powder, 20 parts of lamellar glass flake filler, 3 parts of wood powder, 6 parts of organic montmorillonite, 12 parts of glass fiber, 2 parts of flame retardant, 2 parts of compatilizer and 1 part of antioxidant.
The kind of substance and the preparation method used in this example were the same as those in example 1.
Example 3
A fabric-touch-like polypropylene material for vehicles comprises the following components: 100 parts of polypropylene, 20 parts of styrene thermoplastic elastomer, 10 parts of block organic silicon material, 3 parts of polyethylene wax, 20 parts of lamellar mica powder, 5 parts of lamellar glass flake filler, 8 parts of wood powder, 3 parts of organic montmorillonite, 18 parts of glass fiber, 3 parts of flame retardant, 1 part of compatilizer and 3 parts of antioxidant.
The kind of substance and the preparation method used in this example were the same as those in example 1.
Example 4
A fabric-touch-like polypropylene material for vehicles comprises the following components: 100 parts of polypropylene, 25 parts of styrene thermoplastic elastomer, 8 parts of block organic silicon material, 2 parts of polyethylene wax, 12 parts of lamellar mica powder, 10 parts of lamellar glass flake filler, 6 parts of wood powder, 15 parts of organic montmorillonite, 10 parts of glass fiber, 1 part of flame retardant, 2 parts of compatilizer and 1 part of antioxidant.
The kind of substance and the preparation method used in this example were the same as those in example 1.
Comparative example 1
This comparative example differs from example 1 in that: does not contain lamellar mica powder.
The concrete composition is as follows: 100 parts of polypropylene, 15 parts of styrene thermoplastic elastomer, 15 parts of block organic silicon material, 3 parts of polyethylene wax, 12 parts of flaky glass flake filler, 5 parts of wood powder, 12 parts of organic montmorillonite, 15 parts of glass fiber, 1 part of flame retardant, 2.5 parts of compatilizer and 2 parts of antioxidant.
Comparative example 2
This comparative example differs from example 1 in that: does not contain flaky glass flake filler and contains talcum powder as filler.
The concrete composition is as follows: 100 parts of polypropylene, 15 parts of styrene thermoplastic elastomer, 15 parts of block organic silicon material, 3 parts of polyethylene wax, 12 parts of talcum powder, 5 parts of wood powder, 12 parts of organic montmorillonite, 15 parts of glass fiber, 1 part of flame retardant, 2.5 parts of compatilizer and 2 parts of antioxidant.
And (3) performance testing:
the polypropylene materials provided in examples 1-4 and comparative examples 1-2 were injection molded on an injection molding machine and tested for properties.
And (3) testing tensile strength: reference standard: ISO 527-2; and (3) testing conditions are as follows: the clamping distance is 50mm, and the speed is 50 mm/min.
And (3) testing the bending strength: reference standard: ISO 178; and (3) testing conditions are as follows: span 64mm, speed 14 mm/min.
Flexural modulus test: reference standard: ISO 178; and (3) testing conditions are as follows: span 64mm, speed 2 mm/min.
Unnotched impact strength test: reference standard: ISO 179; and (3) testing conditions are as follows: the span is 62 mm.
Notched impact strength test: reference standard: ISO 179; and (3) testing conditions are as follows: span 62mm, notch depth 1/3D.
The detection results are as follows:
example 1:
tensile strength: 25Mpa, bending strength: 30Mpa, flexural modulus: 1800Mpa, unnotched impact strength: continuously, notch impact strength: 20KJ · m-2Appearance: the surface of the part has no air mark and no flaw, and has good fabric touch.
Example 2:
tensile strength: 27Mpa, flexural strength: 32Mpa, flexural modulus: 2000Mpa, unnotched impact strength: continuously, notch impact strength: 21KJ · m-2Appearance: the surface of the part has no air mark and no flaw, and has good fabric touch.
Example 3:
tensile strength: 26Mpa, bending strength: 28Mpa, flexural modulus: 1800Mpa, unnotched impact strength: continuously, notch impact strength: 18KJ · m-2Appearance: the surface of the part has no air mark and no flaw, and has good fabric touch.
Example 4:
tensile strength: 23Mpa, flexural strength: 28Mpa, flexural modulus: 1600Mpa, unnotched impact strength: continuously, notch impact strength: 17KJ · m-2Appearance: the surface of the part has no air mark and no flaw, and has good fabric touch.
Comparative example 1:
tensile strength: 25Mpa, bending strength: 28Mpa, flexural modulus: 1600Mpa, unnotched impact strength: continuously, notch impact strength: 19KJ · m-2Appearance: the surface of the part has no air mark or flaw, the hand feeling is more similar to the rubber touch feeling, and the texture is poorer.
Comparative example 2:
tensile strength: 24Mpa, bending strength: 29Mpa, flexural modulus: 1800Mpa, unnotched impact strength: continuously, notch impact strength: 18KJ · m-2Appearance: the surface of the component has no air mark and no flaw,the hand feeling is more similar to the rubber touch feeling, and the texture is poorer.
According to the detection result, the following can be found: the hand of the polypropylene material injection molded samples obtained in examples 1-4 was closer to the fabric hand than the samples of comparative examples 1 and 2, and the samples of comparative examples 1-2 were closer to the rubber hand; the addition of the lamellar mica powder and the lamellar glass flake filler plays a role of a framework, and has positive significance for ensuring that the polypropylene base material has certain texture while obtaining soft touch, so that the hand feeling is closer to the fabric hand feeling.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A fabric-touch-like polypropylene material for vehicles is characterized in that: comprises polypropylene, flexible modified material, lamellar mica powder and lamellar glass flakes; the flexible modified material is at least one selected from styrene thermoplastic elastomer, block organosilicon material and polyethylene wax.
2. The fabric-touch-like vehicular polypropylene material according to claim 1, wherein: also comprises organic montmorillonite and wood powder.
3. The fabric-touch-like vehicular polypropylene material according to claim 2, wherein: the organic montmorillonite is subjected to organic treatment by a cationic surfactant; the wood powder is fir wood powder.
4. The fabric-touch-like vehicular polypropylene material according to claim 3, wherein: also comprises glass fiber, flame retardant, compatilizer and antioxidant.
5. The fabric-touch-like vehicular polypropylene material according to claim 4, wherein: the flame retardant comprises, by mass, 100 parts of polypropylene, 15-25 parts of styrene thermoplastic elastomer, 8-15 parts of block organic silicon material, 2-5 parts of polyethylene wax, 5-20 parts of lamellar mica powder, 5-20 parts of lamellar glass flake filler, 3-8 parts of wood powder, 3-15 parts of organic montmorillonite, 10-18 parts of glass fiber, 1-3 parts of flame retardant, 1-2.5 parts of compatilizer and 1-3 parts of antioxidant.
6. The fabric-touch-like vehicular polypropylene material according to any one of claims 1 to 5, wherein: the flow rate of the polypropylene resin is 35 to 50g/min at a temperature of 230 ℃ under a load of 2.16 kg.
7. The fabric-touch-like vehicular polypropylene material according to any one of claims 1 to 5, wherein: the length of the sheet diameter of the sheet-shaped mica powder is 80-100 mu m, and the thickness of the sheet layer is 2-3 mu m; the length of the flake diameter of the flake glass flake filler is 100-300 mu m, and the thickness of the flake layer is 2-5 mu m.
8. The fabric-touch-like vehicular polypropylene material according to any one of claims 1 to 5, wherein: the styrene thermoplastic elastomer is SEBS, and the total styrene content of the styrene thermoplastic elastomer is 25-40 wt%; the block organosilicon material is an organosilicon-polyurethane block copolymer, wherein the content of organosilicon is 20-30%; the molecular weight of the polyethylene wax is 3000-5000.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010850693.9A CN111978638A (en) | 2020-08-21 | 2020-08-21 | Fabric touch feeling-imitated polypropylene material for vehicles |
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| CN202010850693.9A CN111978638A (en) | 2020-08-21 | 2020-08-21 | Fabric touch feeling-imitated polypropylene material for vehicles |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112480550A (en) * | 2020-11-30 | 2021-03-12 | 重庆普利特新材料有限公司 | Floating-fiber-free high-welding-strength soft-touch polypropylene composite material and preparation method thereof |
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Application publication date: 20201124 |