Lightweight high-strengthened automotive trim panel material and method of making same

Abstract

The application discloses a light high-strengthened vehicle decorative plate material and a preparation method thereof, which comprises a first base layer, and second, third and fourth base layers arranged from inside to outside above and below the first base layer; a plurality of nuts are arranged on the inner side wall of the second base layer and are screwed with the first screw rod; a connecting rod is arranged above each nut, penetrates through the second base layer, and is connected with a nut assembly arranged on the outer side wall of the second base layer; the free end of the nut assembly penetrates through the third base layer, and the free end of the bolt assembly is connected with the inner side wall of the fourth base layer through insertion; the device adopts the fixing effect of nut and screw rod cooperation and screwing, has the advantages of shock absorption and sound insulation while the hardness of the decorative plate meets the requirements, and solves the problems of the lack of shock absorption, sound insulation and flame retardation of the decorative plate in the prior art.

Description

Technical Field

[0001] This invention relates to a lightweight, high-strength automotive trim panel material and its preparation method. Background Technology

[0002] As consumers' demands for a superior driving experience increase, the interior decoration effect has become a key focus. A perfect decoration effect can greatly enhance the perceived quality of a car, thereby increasing consumers' desire to purchase. In recent years, translucent decorative panels, which have been widely used by OEMs both domestically and internationally, combine decoration and functionality and are an important way to improve the decoration effect of automotive interiors.

[0003] With the rapid development of the automotive industry, the market demands higher and higher standards for automobiles, and the requirements for the quality and environmental protection of automotive interior parts are becoming increasingly stringent. The high chemical content of interior trim materials contributes to poor air quality inside vehicles, impacting people's health. Water spills on vehicle interior panels are often simply wiped away and left to dry naturally, leading to mold growth and dirt accumulation. Prolonged parking in humid environments can also cause mold growth on the interior panels. While existing trim panels meet the required hardness, their shock absorption, sound insulation, and flame retardant properties are lacking. Therefore, a lightweight, high-strength automotive trim panel material and its preparation method have emerged. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lightweight and high-strength automotive trim panel material and its preparation method.

[0005] A lightweight, high-strength automotive trim panel material and its preparation method are disclosed. The material includes a first base layer. Multiple first screws are provided on the upper and lower surfaces of the first base layer. A second base layer, a third base layer, and a fourth base layer are sequentially provided above and below the first base layer from the inside out. Multiple nuts that are screwed onto the first screws abut against the inner sidewall of the second base layer are provided. A connecting rod is provided above each nut. The connecting rod passes through the second base layer and is connected to a nut assembly that abuts against the outer sidewall of the second base layer. The free ends of the nut assemblies all pass through the third base layer and are screwed onto bolt assemblies. The free ends of the bolt assemblies are inserted into the inner sidewall of the fourth base layer. Elastic components are fitted onto the bolt assemblies and the first screws, providing a shock-absorbing effect.

[0006] As a further improvement, both the first and second base layers are made of high-strength composite plastic material. High-strength composite plastic material has high structural strength and a certain degree of elasticity, achieving a shock absorption effect. It also has the advantage of long service life. The high-strength composite plastic material is environmentally friendly, has low manufacturing cost, strong heat resistance, cold resistance, and barrier properties, and also has strong shock absorption, physical and mechanical properties. It can effectively improve the overall hardness and strength of the entire decorative panel, meet the hardness requirements of the decorative panel during use, and has high sound insulation effect, effectively reducing noise and vibration, making it suitable for use in vehicle interiors.

[0007] As a further improvement, the third base layer is made of composite insulation material. Composite insulation material has good thermal insulation properties and belongs to organic insulation material. Compared with inorganic insulation board, it has a very low thermal conductivity, thus effectively reducing the thickness of the insulation product, increasing the volume ratio, and has strong adaptability, crack resistance, and deformation resistance. It is a flexible material with large deformation capacity and strong resistance to external deformation. Under the action of external force, temperature deformation, dry temperature deformation, etc., it is not easy to crack, which can effectively ensure the stability and durability of the decorative panel, effectively reduce the loss of temperature inside the vehicle, and is suitable for use in the vehicle.

[0008] As a further improvement, the fourth base layer is made of polyurethane material, which is rigid polyurethane plastic. Rigid polyurethane plastic is lightweight, has excellent sound insulation and heat insulation properties, is resistant to chemicals, has good electrical properties, is easy to process, and has a low water absorption rate. When placed on the outermost layer of the decorative panel structure, it can effectively extend the service life of the panel, prevent damage to the internal structure of the device panel, and play a protective role, making it suitable for use in vehicles.

[0009] As a further improvement, the surfaces of the first base layer, the second base layer, the third base layer, and the fourth base layer are all coated with an inorganic flame-retardant layer. The inorganic flame-retardant layer is a non-toxic substance, which is safe and environmentally friendly for use in vehicle interiors. It also has high thermal stability, low price, effectively reduces the manufacturing cost of the decorative panel, and effectively improves the safety of the decorative panel. It fully meets the usage requirements of vehicle interior decorative panels and is suitable for wide-ranging applications.

[0010] As a further improvement, the thickness of the first base layer, the second base layer, the third base layer, and the fourth base layer is not less than 4 cm.

[0011] A method for preparing a lightweight and high-strength automotive trim panel material includes the following steps: First, prepare PE (polyethylene), PP (polypropylene), PPE (polyphenylene ether), OPP (o-phenylphenol), POF (plastic optical fiber), polyurethane silicone oil, plasticizer, composite film and water, and mix them in proportion. Then, after mixing, send them to a reaction vessel for continuous stirring and heating, and finally use an injection molding machine to form a high-strength composite plastic material of the corresponding shape.

[0012] As a further improvement, the stirring time is 3 to 6 hours to ensure thorough stirring.

[0013] Beneficial effects:

[0014] This device uses high-strength composite plastic material. High-strength composite plastic material has high structural strength and a certain degree of elasticity, achieving a shock absorption effect. It also has the advantages of long service life. The high-strength composite plastic material is environmentally friendly, has low manufacturing cost, and strong heat resistance, cold resistance, and barrier properties. It also has strong shock absorption, physical, and mechanical properties, effectively improving the overall hardness and strength of the entire decorative panel, meeting the hardness requirements during use. It has high sound insulation, effectively reducing noise and vibration, making it suitable for vehicle interiors. It uses composite insulation material, which has good thermal insulation properties. As an organic insulation material, it has a very low thermal conductivity compared to inorganic insulation boards, thus effectively reducing the thickness of the insulation product, increasing the volume ratio, and exhibiting strong adaptability, crack resistance, and deformation resistance. It is a flexible material with large deformation capacity, strongly resisting external deformation. Under the action of external forces, temperature deformation, and dry-temperature deformation, it is not prone to cracking, effectively ensuring the stability and durability of the decorative panel. Effectively reducing heat loss inside the vehicle, this product is suitable for in-vehicle use. It utilizes rigid polyurethane plastic, which is lightweight, offers excellent sound insulation and heat insulation, is chemically resistant, has good electrical properties, is easy to process, and has low water absorption. Placed on the outermost layer of the decorative panel structure, it effectively extends the product's lifespan, preventing damage to the internal structure and providing protection. Suitable for in-vehicle use, it also incorporates an inorganic flame-retardant layer. This non-toxic layer is safe and environmentally friendly for use in vehicles, exhibiting high thermal stability and low cost, effectively reducing the manufacturing cost of the decorative panel and improving its safety. It fully meets the requirements for in-vehicle decorative panels and is suitable for widespread use. The thickness of each layer on the substrate is limited, ensuring the overall thickness, structural strength, and hardness of the decorative panel. Furthermore, all materials used in the panel's manufacture are environmentally friendly, significantly improving safety. This addresses the problem of existing in-vehicle decorative materials containing high levels of chemicals, leading to poor air quality and impacting health, and also prevents mold growth in vehicles.

[0015] This device uses nuts and screws to tighten the fixing effect, which not only achieves the required hardness of the decorative panel, but also has the advantages of shock absorption and sound insulation, solving the problem that the existing technology for decorative panels is lacking in shock absorption, sound insulation and flame retardant performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the decorative panel material;

[0017] Figure 2 This is a schematic diagram of the overall structure of the decorative panel material;

[0018] Figure 3 This is a three-dimensional structural diagram of the decorative panel material;

[0019] Figure 4 This is a schematic diagram of the side structure of the decorative panel material;

[0020] 1. Fourth base layer 2. Third base layer 3. Second base layer 4. First base layer 5. Bolt assembly 6. Nut assembly. Detailed Implementation

[0021] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments and accompanying drawings. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0022] like Figures 1-4 The following is a specific embodiment of the present invention: a lightweight and high-strength automotive decorative panel material and its preparation method, comprising a fourth base layer 1, a third base layer 2, a second base layer 3, a first base layer 4, a bolt assembly 5, and a nut assembly 6.

[0023] A lightweight, high-strength automotive trim panel material and its preparation method are disclosed. The material includes a first base layer 4, with multiple first screws on both the upper and lower surfaces. Above and below the first base layer 4, from the inside out, are sequentially arranged a second base layer 3, a third base layer 2, and a fourth base layer 1. The inner sidewall of the second base layer 3 abuts against multiple nuts screwed onto the first screws. Each nut has a connecting rod above it, which penetrates the second base layer 3 and connects to a nut assembly 6 abutting against the outer sidewall of the second base layer 3. The free ends of the nut assemblies 6 penetrate the third base layer 2 and are screwed onto bolt assemblies 5. The free ends of the bolt assemblies 5 are inserted into the inner sidewall of the fourth base layer 1. Elastic components are fitted onto the bolt assemblies and the first screws, providing shock absorption and reducing the impact of external forces on the trim panel.

[0024] Both the first base layer 4 and the second base layer 3 are made of high-strength composite plastic material. High-strength composite plastic material has high structural strength and a certain degree of elasticity, achieving a shock absorption effect. It also has the advantage of long service life. The high-strength composite plastic material is environmentally friendly, has low manufacturing cost, strong heat resistance, cold resistance, and barrier properties. It also has strong shock absorption, physical and mechanical properties, which can effectively improve the overall hardness and strength of the entire decorative panel, meet the hardness requirements of the decorative panel during use, and have high sound insulation effect, effectively reducing noise and vibration, making it suitable for use in the car interior.

[0025] The third base layer 2 is made of composite insulation material. Composite insulation material has good thermal insulation properties. It is an organic insulation material. Compared with inorganic insulation boards, it has a very low thermal conductivity, thus effectively reducing the thickness of the insulation product, increasing the volume ratio, and has strong adaptability, crack resistance, and deformation resistance. It is a flexible material with large deformation capacity and strong resistance to external deformation. Under the action of external force, temperature deformation, dry temperature deformation, etc., it is not easy to crack. It can effectively ensure the stability and durability of the decorative panel and effectively reduce the loss of temperature inside the vehicle, making it suitable for use in the vehicle.

[0026] The fourth base layer 1 is made of polyurethane material, which is rigid polyurethane plastic. Rigid polyurethane plastic is lightweight, has excellent sound insulation and heat insulation properties, is resistant to chemicals, has good electrical properties, is easy to process, and has a low water absorption rate. When placed on the outermost layer of the decorative panel structure, it can effectively extend the service life of the panel, prevent damage to the internal structure of the panel, and play a protective role, making it suitable for use inside vehicles.

[0027] The surfaces of the first base layer 4, the second base layer 3, the third base layer 2, and the fourth base layer 1 are all coated with an inorganic flame-retardant layer. The inorganic flame-retardant layer is a non-toxic substance, which is safe and environmentally friendly for use in vehicle interiors. It also has high thermal stability, low price, effectively reduces the manufacturing cost of the decorative panel, and effectively improves the safety of the decorative panel. It fully meets the usage requirements of vehicle interior decorative panels and is suitable for wide-ranging applications.

[0028] The thickness of the first base layer 4, the second base layer 3, the third base layer 2, and the fourth base layer 1 shall not be less than 4 cm.

[0029] A method for preparing a lightweight and high-strength automotive trim panel material includes the following steps: First, prepare PE (polyethylene), PP (polypropylene), PPE (polyphenylene ether), OPP (o-phenylphenol), POF (plastic optical fiber), polyurethane silicone oil, plasticizer, composite film, and water, and mix them in proportion. Then, send the mixture to a reaction vessel for continuous stirring and heating. Finally, use an injection molding machine to form a high-strength composite plastic material of the corresponding shape. The stirring time is 5 hours to ensure thorough stirring.

[0030] In use, the connecting rod passes through the second base plate. One end of the connecting rod is provided with a nut that is screwed into the first screw, and the other end of the connecting rod is provided with a nut assembly 6 that is connected to the bolt assembly 5. All connections are made by screwing. Finally, the bolt assembly 5 is inserted into the fourth base layer 1 and fixed by adhesive.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0032] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A lightweight, high-strength automotive trim panel material, comprising a first base layer, characterized in that, The upper and lower surfaces of the first base layer are provided with multiple first screws. Above and below the first base layer, from the inside to the outside, are arranged a second base layer, a third base layer, and a fourth base layer. The inner sidewall of the second base layer is abutted by multiple nuts that are screwed to the first screws. Each nut is provided with a connecting rod above it. The connecting rod passes through the second base layer and is connected to a nut assembly that abuts against the outer sidewall of the second base layer. The free end of each nut assembly passes through the third base layer and is screwed to a bolt assembly. The free end of each bolt assembly is inserted into the inner sidewall of the fourth base layer. Elastic components are fitted on the bolt assembly and the first screws.

2. The lightweight, high-strength automotive trim panel material according to claim 1, characterized in that, Both the first and second base layers are made of high-strength composite plastic material.

3. The lightweight, high-strength automotive trim panel material according to claim 1, characterized in that, The third base layer is made of composite thermal insulation material.

4. The lightweight, high-strength automotive trim panel material according to claim 1, characterized in that, The fourth base layer is made of polyurethane material.

5. The lightweight, high-strength automotive trim panel material according to claim 1, characterized in that, The surfaces of the first base layer, the second base layer, the third base layer, and the fourth base layer are all coated with an inorganic flame-retardant layer.

6. The lightweight, high-strength automotive trim panel material according to claim 1, characterized in that, The thickness of the first base layer, the second base layer, the third base layer, and the fourth base layer is not less than 4 cm.

Images