CN110903591A - Preparation method of semitransparent skin material for automotive interior - Google Patents
Preparation method of semitransparent skin material for automotive interior Download PDFInfo
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- CN110903591A CN110903591A CN201911257544.5A CN201911257544A CN110903591A CN 110903591 A CN110903591 A CN 110903591A CN 201911257544 A CN201911257544 A CN 201911257544A CN 110903591 A CN110903591 A CN 110903591A
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- skin material
- thermoplastic elastomer
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- flame retardant
- semitransparent
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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
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
- C08L53/025—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
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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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
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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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- 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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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Abstract
The invention discloses a preparation method of a semitransparent skin material for automotive interior decoration, which belongs to the technical field of automotive interior decoration, wherein the prepared skin material has the characteristics of excellent appearance, comfortable touch, low gloss, soft touch, high modulus, low temperature resistance, low linear expansion coefficient and the like, has aging resistance, does not contain halogen and plasticizer, has low VOC (volatile organic compound) emission, improves silent property of the interior space of a vehicle, relieves depression feeling and improves safety, can be directly combined with light, integrates the transparent skin material to the surface of the interior decoration, can make the surfaces semitransparent without depending on the back of the surfaces, and achieves the application effect of the semitransparent skin material for automotive interior decoration.
Description
Technical Field
The invention belongs to the technical field of automotive interior trim, and particularly relates to a preparation method of a semitransparent skin material for automotive interior trim.
Background
With the increase of cabin functions, user experience is also improved, and enterprises in the industry begin to look at intelligent materials and aim at improving silence of the internal space of the vehicle, relieving depression and improving safety. The topic of integrating digital functions into automotive interior materials is attracting increasing attention of customers. Lighting integration is a crucial step in this development: this requires the integration of conventional interior facing materials with the now popular light-transmitting skins. The most likely direct application of the light-transmitting skin is currently the integration of light-transmitting skin materials into interior trim surfaces in combination with light. The surfaces can be made to be semitransparent without depending on the light transmission at the back of the surfaces of leather, fabric, real aluminum, real wood and other entities, so that unique light patterns are created, and the unique light effect is presented by the aid of the lightproof materials. The translucent skin material is the key for endowing the soft skin of the automobile interior with personalized features and new functions, and the light-transmitting material can create a new light design by utilizing different illumination types, so that the material is focused on and the surrounding environment of the material is considered. Thus, new effects can be designed in combination with different colors, structures and textures. In addition, color and light source intensity can achieve different effects, catering to specific moods. The environment in the cab can therefore also be adjusted to the specific situation or driving state. If the skin material is combined with different lighting technologies, the background lighting can be changed according to the circadian rhythm, the weather conditions and the ambient light, and the local lighting can create different atmospheres by using light color and intensity. The driver and front passenger areas as well as the rear seat area of the vehicle can also be illuminated separately. In addition, different lighting intensities can be set for different activities, such as driving, reading, sleeping, cooling, etc. Such that the interior trim can be changed according to the specific environment and driving conditions. The entity switch in the future automotive interior will be eliminated gradually, and even the activation of function need not use the touch screen, and the core aim at of this kind of design is: the driver places his attention on the road surface condition while driving. The semitransparent skin material (supplemented with sensors, electronic parts and motor components, capable of integrating various control functions and being a necessary material for the overall promotion of future automatic driving) is expected to play an important role in the field of electrification and automatic driving concepts, particularly aging resistance, light fastness and color fastness, all raw materials and production processes need to be changed to achieve the aim, and a person skilled in the art needs to develop a semitransparent skin material with excellent comprehensive performance to meet higher service performance and wider market requirements.
Disclosure of Invention
In view of the above problems, the present invention is directed to a method for preparing a translucent skin material for automotive interior.
The invention is realized by the following technical scheme:
a preparation method of a semitransparent skin material for automotive interior comprises the following steps: the method comprises the following steps of banburying a thermoplastic elastomer, a reactive thermoplastic elastomer, polystyrene, poly-4-methyl-1-pentene, an anti-aging agent, an inorganic filler, a compatilizer, a lubricant, an atomizing agent, a flame retardant and an auxiliary flame retardant into a melt, processing the melt into a sheet by a calendering process, and carrying out corona treatment on the surface of the sheet for surface layer treatment.
The flame retardant is characterized by further comprising, by weight, 25-35 parts of a thermoplastic elastomer, 12-14 parts of a reactive thermoplastic elastomer, 18-22 parts of polystyrene, 9-12 parts of poly-4-methyl-1-pentene, 0.9-1.1 parts of an anti-aging agent, 18-22 parts of anhydrous barium sulfate as an inorganic filler, 0.4-0.6 part of a polystyrene-maleic anhydride graft copolymer as a compatilizer, 0.4-0.6 part of zinc stearate as a lubricant, 0.4-0.6 part of a natural zeolite powder as an atomizing agent, 0.9-1.1 part of a natural zeolite powder as a flame retardant, 5-7 parts of a melamine salt as a flame retardant, and 1.5-3.5 parts of an organic montmorillonite as an auxiliary flame retardant.
Further, the thermoplastic elastomer is one of SEBS and ethylene propylene diene monomer.
Further, the corona treatment is carried out by adopting treatment parameters of 10-25 kHz, controlling the electrode gap to be 1-2 mm, treating for 5-10 s and treating at 50-60 ℃.
Further, the anti-aging agent is N-cyclohexyl p-ethoxyaniline or styrenated phenol or 1, 4-dibenzyloxy benzene.
Further, the reactive thermoplastic elastomer is one of ethylene-methacrylic acid ionomer or sulfonated ethylene propylene diene monomer or butadiene-acrylic acid ionomer.
The invention has the beneficial effects that:
the high transparency of poly (4-methylpentene) is mainly caused by the low optical anisotropy of the molecules in the helical set of crystalline phase, and the close density and refractive index of the crystalline and amorphous parts. The refractive index of the crystalline part is very close to that of the amorphous part, so that the material has high isotropy and obvious crystallization performance, and two aggregation structures exist in the ionomer by adopting the reactive thermoplastic elastomer: multiple ion pairs and ion clusters. Multiple ion pairs are considered to be composed of a small number of ionic dipoles), which are randomly distributed in the thermoplastic elastomer with poly (4-methylpentene) as a hard segment, do not exhibit phase separation, improve the mechanical strength of the material, affect the optical properties of the thermoplastic elastomer with poly (4-methylpentene) as a hard segment in addition to ionic crosslinking, form a translucent skin material, use polystyrene to improve the strength and rigidity of the material, use a thermoplastic elastomer as a soft segment, and therein improve the translucency of the material as an opaque material.
The invention has the beneficial effects that:
the skin material prepared by the preparation method has excellent appearance, comfortable touch, low gloss, soft touch, high modulus, low temperature resistance, low linear expansion coefficient and other characteristics, has excellent pattern retention, presents harmonious and uniform ageing resistance with extremely strong semitransparent effect, does not contain halogen and plasticizer, has low VOC emission, improves silent property of the inner space of a vehicle, relieves depression feeling and improves safety, and the semi-transparent skin can be directly combined with light to integrate the transparent skin material to the surface of an interior trim. The surfaces can be made to be semitransparent without depending on light transmission at the back of the surfaces, so that the application effect of the semitransparent skin material for the automotive interior is achieved.
Detailed Description
The invention is illustrated by the following specific examples, which are not intended to be limiting.
Example 1
A preparation method of a semitransparent skin material for automotive interior comprises the following steps: the method comprises the following steps of banburying a thermoplastic elastomer, a reactive thermoplastic elastomer, polystyrene, poly-4-methyl-1-pentene, an anti-aging agent, an inorganic filler, a compatilizer, a lubricant, an atomizing agent, a flame retardant and an auxiliary flame retardant into a melt, processing the melt into a sheet by a calendering process, and carrying out corona treatment on the surface of the sheet for surface layer treatment.
Furthermore, by weight, the thermoplastic elastomer is 25 parts, the reactive thermoplastic elastomer is 12 parts, the polystyrene is 18 parts, the poly-4-methyl-1-pentene is 9 parts, the anti-aging agent is 0.9 part, the inorganic filler is anhydrous barium sulfate which is 18 parts, the compatilizer is polystyrene-maleic anhydride graft copolymer which is 0.4 part, the lubricant is zinc stearate which is 0.4 part, the atomizing agent is natural zeolite powder which is 0.9 part, the flame retardant is melamine urate which is 5 parts, the auxiliary flame retardant is organic montmorillonite which is 1.5 parts.
Further, the thermoplastic elastomer is SEBS, preferably YH-503.
Further, the corona treatment is carried out by adopting a treatment parameter of 10kHz, controlling the electrode gap to be 1mm, treating for 10s and treating at 50 ℃.
Further, the anti-aging agent is N-cyclohexyl p-ethoxyaniline.
Further, the reactive thermoplastic elastomer is an ionomer of ethylene-methacrylic acid.
Example 2
A preparation method of a semitransparent skin material for automotive interior comprises the following steps: the method comprises the following steps of banburying a thermoplastic elastomer, a reactive thermoplastic elastomer, polystyrene, poly-4-methyl-1-pentene, an anti-aging agent, an inorganic filler, a compatilizer, a lubricant, an atomizing agent, a flame retardant and an auxiliary flame retardant into a melt, processing the melt into a sheet by a calendering process, and carrying out corona treatment on the surface of the sheet for surface layer treatment.
Further, by weight, the thermoplastic elastomer is 35 parts, the reactive thermoplastic elastomer is 14 parts, the polystyrene is 22 parts, the poly-4-methyl-1-pentene is 12 parts, the anti-aging agent is 1.1 parts, the inorganic filler is anhydrous barium sulfate and 22 parts, the compatilizer is polystyrene-maleic anhydride graft copolymer and 0.6 part, the lubricant is zinc stearate and 0.6 part, the atomizing agent is natural zeolite powder and 1.1 part, the flame retardant is melamine urate and 7 parts, the auxiliary flame retardant is organic montmorillonite and 3.5 parts.
Further, the thermoplastic elastomer is SEBS, preferably YH-502.
Further, the corona treatment was carried out with a treatment parameter of 25kHz, an electrode gap of 2mm, a treatment time of 10s and a treatment temperature of 60 ℃.
Further, the anti-aging agent is N-cyclohexyl p-ethoxyaniline or styrenated phenol or 1, 4-dibenzyloxy benzene.
Further, the reactive thermoplastic elastomer is sulfonated ethylene propylene diene monomer.
The translucent skin materials for automobile interiors of examples 1-2 were subjected to performance tests, and the results are shown in Table 1.
TABLE 1 results of Properties test of translucent skin materials for automotive interiors in examples 1 to 2
Note: the test is carried out according to GB/T1040.1-2006kGB/T1040.2-2006, a 1A type test sample, a tensile speed of 200 +/-10 mm/min, a right angle type test sample, no cut, a tensile speed of 200 +/-20 m/min hardness test, a GB/T241200 line A type Shore hardness meter, and a value-reading peel strength test of a reading indicating device after 15 +/-1 s, according to a B method of GB8091988 standard. The bars were 150mmx50mm, pre-peeled 40mm apart. The test speed was 200 m/mn. The test results are in the middle 50% region of the curve, and an average abrasion resistance Taber type abrasion tester giving a peak value of 10 crossing points in 9 equal parts, and a circular test piece having a diameter of 110mm is prepared at a rotation speed of 60r/min, and a circular hole having a diameter of 7mm is opened in the middle. After the test was completed under the conditions of 500g load and 250 cycles using the CS-10 grindstone according to the requirements specified in SAEJ948, the degree of wear of the test piece was visually judged. The materials in the examples 1-2 are required to meet the requirements of GB/T30512 'requirement for substances forbidden for automobiles', the materials are carried out according to the method specified in GB/T3920, the materials are subjected to dry friction for 100 times, wet friction for 100 times, and heat-resistant color fastness is tested according to the specification of QB/T4194-2011, a sample is placed in a constant-temperature oven at 105 ℃ of an instrument panel and 9 ℃ of a door panel, the sample is taken out after 168 hours, and is placed at room temperature for 4 hours, the color-changing gray sample card for color change evaluation of the test support GB/T250-2008 is visually determined by a standard light source to determine the degree of color change, and the most serious abnormal surface condition. The precipitation resistance was measured by cutting 3 pieces of a sample having a size of 100m by 100 m. And (3) placing the product assembly in a constant temperature and humidity test box at 70 ℃ for 168 hours, and then placing the product assembly at normal temperature for 2 hours. The surface condition of the sample was observed and recorded, and the sample was rated in GB/T250-2008. Atomization characteristic the sample is placed in a glass cup, is subjected to warm bath at 100 ℃ for 16hmin, is taken out and is balanced for 4 hours, and then the weight is measured, and the difference value of the weights before and after the test is calculated. The cooling water temperature was 21 ℃.
Claims (6)
1. A preparation method of a semitransparent skin material for automotive interior is characterized by comprising the following steps: the method comprises the following steps of banburying a thermoplastic elastomer, a reactive thermoplastic elastomer, polystyrene, poly-4-methyl-1-pentene, an anti-aging agent, an inorganic filler, a compatilizer, a lubricant, an atomizing agent, a flame retardant and an auxiliary flame retardant into a melt, processing the melt into a sheet by a calendering process, and carrying out corona treatment on the surface of the sheet for surface layer treatment.
2. The method for producing a translucent skin material for automobile interior trim according to claim 1, characterized in that, the weight portion of the thermoplastic elastomer is 25 to 35 portions, the reactive thermoplastic elastomer is 12 to 14 portions, the polystyrene is 18 to 22 portions, the poly-4-methyl-1-pentene is 9 to 12 portions, the anti-aging agent is 0.9 to 1.1 portions, the inorganic filler adopts anhydrous barium sulfate, the dosage of the high-performance polyethylene is 18-22 parts, the compatilizer is a polystyrene-maleic anhydride graft copolymer, 0.4-0.6 part of lubricant, 0.4-0.6 part of zinc stearate, natural zeolite powder as atomizing agent, the flame retardant is melamine urate in 0.9-1.1 weight portions, and the auxiliary flame retardant is organic montmorillonite in 1.5-3.5 weight portions.
3. The method for preparing a translucent skin material for automotive interiors according to claim 1, wherein the thermoplastic elastomer is one of SEBS and ethylene propylene diene monomer.
4. The method for preparing a translucent skin material for automotive interiors according to claim 1, characterized in that the corona treatment is carried out with treatment parameters of 10 to 25kHz, electrode gap controlled at 1 to 2mm, treatment time of 5 to 10s, and treatment temperature of 50 to 60 ℃.
5. The method for preparing a translucent skin material for automotive interiors according to claim 1, characterized in that the anti-aging agent is N-cyclohexyl-p-ethoxyaniline or styrenated phenol or 1, 4-dibenzyloxybenzene.
6. The method of preparing a translucent skin material for automotive interiors according to claim 1, characterized in that the reactive thermoplastic elastomer is one of an ionomer of ethylene-methacrylic acid or an ionomer of sulfonated ethylene-propylene-diene monomer or an ionomer of butadiene-acrylic acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911257544.5A CN110903591A (en) | 2019-12-10 | 2019-12-10 | Preparation method of semitransparent skin material for automotive interior |
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| CN201911257544.5A CN110903591A (en) | 2019-12-10 | 2019-12-10 | Preparation method of semitransparent skin material for automotive interior |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280086A (en) * | 2020-11-12 | 2021-01-29 | 苏州瑞高新材料有限公司 | Novel light-transmitting superconducting automobile interior material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001088255A (en) * | 1999-09-20 | 2001-04-03 | Dainippon Printing Co Ltd | Decorative sheet |
| CN102514337A (en) * | 2011-11-16 | 2012-06-27 | 佛山市天安塑料有限公司 | Automobile interior decoration material and production method thereof |
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2019
- 2019-12-10 CN CN201911257544.5A patent/CN110903591A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001088255A (en) * | 1999-09-20 | 2001-04-03 | Dainippon Printing Co Ltd | Decorative sheet |
| CN102514337A (en) * | 2011-11-16 | 2012-06-27 | 佛山市天安塑料有限公司 | Automobile interior decoration material and production method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112280086A (en) * | 2020-11-12 | 2021-01-29 | 苏州瑞高新材料有限公司 | Novel light-transmitting superconducting automobile interior material and preparation method thereof |
| CN112280086B (en) * | 2020-11-12 | 2023-03-14 | 苏州瑞高新材料有限公司 | Novel transparent superconducting automotive interior material and preparation method thereof |
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