Polymer composite material for high-comfort automobile seat cover and preparation method of polymer composite material

Abstract

The invention relates to the technical field of high polymer materials, and provides a high polymer composite material for a high-comfort-degree automobile seat cover and a preparation method of the high polymer composite material for the high-comfort-degree automobile seat cover. Comprising the following raw materials in parts by weight: 85-95 parts of polyurethane, 8-12 parts of a toughening agent, 4-12 parts of a filler, 6-9 parts of a foaming agent, 3-8 parts of a phase change temperature adjusting agent, 2-8 parts of a surfactant, 1-5 parts of a matting agent and 40-55 parts of a solvent. The toughening agent comprises AES resin and ASA resin. According to the technical scheme, the problem of insufficient toughness of the polyurethane polymer composite material for the automobile seat cover in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer materials, and in particular to a polymer composite material for a high-comfort automobile seat cover and a preparation method thereof. Background Art

[0002] Seat covers, as important components, are widely used in automotive and other fields. The performance of seat covers depends largely on the material used. Polyurethane polymer composites are a common material for seat covers due to their excellent wear resistance, corrosion resistance, and ease of processing.

[0003] However, in actual use, existing polyurethane composite materials used in seat covers have gradually exposed insufficient toughness, a defect that seriously affects the overall performance and usability of the seat covers. This lack of toughness makes it difficult for the seat covers to quickly recover after being squeezed or stretched, and they are prone to wrinkling. This not only reduces the seat cover's aesthetics but also affects its fit with the seat, thereby weakening its protective function.

[0004] Polyurethane polymer composite materials with insufficient toughness often feel hard and have poor flexibility, which makes it difficult to meet consumers' demand for high-comfort seat covers, limiting their application in the mid-to-high-end seat cover market.

[0005] Therefore, it is necessary to develop a polyurethane polymer composite material with excellent toughness to improve the comfort of seat covers. Summary of the Invention

[0006] The present invention provides a high-comfort polymer composite material for automobile seat covers and a preparation method thereof, which solves the problem of insufficient toughness of polyurethane polymer composite materials for automobile seat covers in the related art.

[0007] The technical solutions of the present invention are as follows: The present invention provides a high-comfort polymer composite material for automobile seat covers, comprising the following raw materials in parts by weight: 85-95 parts of polyurethane, 8-12 parts of a toughening agent, 4-12 parts of a filler, 6-9 parts of a foaming agent, 3-8 parts of a phase change temperature regulator, 2-8 parts of a surfactant, 1-5 parts of a matting agent, and 40-55 parts of a solvent; the toughening agent comprises AES resin and ASA resin.

[0008] As a further technical solution, the solvent includes dimethylformamide.

[0009] As a further technical solution, the mass ratio of the AES resin to the ASA resin is 1:9 to 9:1.

[0010] As a further technical solution, the mass ratio of the AES resin to the ASA resin is greater than 2.

[0011] In the polymer composite material for high-comfort automobile seat covers of the present invention, when the mass ratio of the AES resin to the ASA resin is greater than 2, the toughness of the polymer composite material for high-comfort automobile seat covers is further improved.

[0012] As a further technical solution, the filler includes one or both of graphene oxide and silicon dioxide.

[0013] As a further technical solution, the filler is a polybutylene succinate composite filler.

[0014] As a further technical solution, the preparation method of the polybutylene succinate composite filler comprises the following steps: A1. Preparation of composite particles: polybutylene succinate and filler are blended and extruded into granules to obtain composite particles; A2. Extraction of modified filler: The composite particles are mixed with an organic solvent, filtered, the solid is collected, and dried to obtain a polybutylene succinate composite filler.

[0015] In the high-comfort automobile seat cover polymer composite material of the present invention, polybutylene succinate and filler are extruded and granulated, and the polybutylene succinate is compounded on the surface of the filler. The mixture is then mixed with an organic solvent, and the uncompounded polybutylene succinate on the filler surface is removed to finally prepare the polybutylene succinate composite filler. After the polybutylene succinate is compounded on the filler surface, the compatibility of the inorganic filler and the organic raw materials in the polymer composite material is improved, thereby improving the strength of the polymer composite material.

[0016] As a further technical solution, the rotation speed during mixing is 8000-10000 rpm, for example, it can be 8000 rpm, 8500 rpm, 9000 rpm, 9500 rpm, or 10000 rpm; The mixing time is 15 to 20 minutes, for example, 15 minutes, 16 minutes, 17 minutes, 18 minutes, 19 minutes, or 20 minutes; The blending time is 12 to 18 minutes.

[0017] As a further technical solution, the mass ratio of the polybutylene succinate to the filler is 15 to 20:1, for example, 15:1, 16:1, 17:1, 18:1, 19:1, or 20:1; The mass ratio of the polybutylene succinate to the organic solvent is 1:80-100; and the organic solvent comprises dimethylformamide.

[0018] As a further technical solution, the matting agent comprises one or both of polyethylene wax and polypropylene wax. The phase change temperature modifier comprises paraffin and stearic acid.

[0019] In the high-comfort automobile seat cover high-molecular composite material, the matting agent can be polyethylene wax, polypropylene wax, etc., which has a long-chain hydrocarbon structure. Since its surface tension is different from that of the polyurethane matrix, the material will gradually migrate to the surface of the material during the material forming process, forming a small concave-convex structure on the surface. When light shines on the material surface, these microscopic concave-convex structures will cause the light to be diffusely reflected, thereby reducing the gloss of the material surface and achieving the matting effect of the polyurethane composite material layer.

[0020] The application also provides a preparation method of the high-comfort automobile seat cover high-molecular composite material, which is used for preparing the high-comfort automobile seat cover high-molecular composite material and comprises the following steps. S1, mixing fillers, phase change temperature modifiers, surfactants, matting agents, and solvents to obtain a preliminary mixture; S2, adding the remaining raw materials to the preliminary mixture and mixing to obtain a polyurethane slurry; S3, coating the polyurethane slurry on release paper and forming to obtain the high-comfort automobile seat cover high-molecular composite material.

[0021] The working principle and beneficial effects of the application are as follows: In the high-comfort automobile seat cover high-molecular composite material, AES resin and ASA resin are added to improve the toughness of the automobile seat cover high-molecular composite material. The reason is that AES resin is acrylonitrile-ethylene-propylene rubber-styrene copolymer, and ASA resin is acrylonitrile-styrene-acrylate copolymer. By adding AES resin and ASA resin to the polyurethane high-molecular composite material, on the one hand, the polar acrylonitrile segments in AES resin and ASA resin have excellent compatibility with the polar isocyanate groups in polyurethane, and on the other hand, the introduction of the ethylene-propylene rubber phase and the acrylate rubber phase in AES resin and ASA resin into the polyurethane composite material layer can absorb energy and disperse stress, thereby improving the toughness. Therefore, by adding AES resin and ASA resin to the polyurethane composite material, the excellent compatibility and the introduction of the ethylene-propylene rubber phase and the acrylate rubber phase improve the flexibility of the polyurethane composite material, which is used for automobile seat covers. During the long-term use of the automobile seat cover, it can quickly respond to human actions, ensuring the comfort of the seat cover. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] In the following examples and comparative examples, the particle size of silicon dioxide is 100 nm.

[0024] Example 1 A polymer composite material for high-comfort automotive seat covers, comprising the following raw materials in parts by weight: 85 parts polyurethane (model 1185A), 8 parts toughening agent, 4 parts silica, 6 parts AC foaming agent, 1 part paraffin wax, 2 parts stearic acid, 2 parts dodecyl ammonium bromide, 1 part polyethylene wax, and 40 parts dimethylformamide; the toughening agent is AES resin (model HW600GHI) and ASA resin (model G5120) in a mass ratio of 1:9. A method for preparing a high-comfort polymer composite material for a car seat cover comprises the following steps: S1. Mixing silicon dioxide, paraffin, stearic acid, dodecyl ammonium bromide, polyethylene wax, and dimethylformamide to obtain a primary mixture; S2. adding the remaining raw materials to the primary mixture and mixing them to obtain a polyurethane slurry; S3. Scalp-coat the polyurethane slurry on release paper and form it at 120° C. to obtain a high-comfort polymer composite material for automobile seat covers.

[0025] Example 2 A high-comfort polymer composite material for automotive seat covers, comprising the following raw materials in parts by weight: 95 parts polyurethane (model 1185A), 12 parts toughening agent, 12 parts silica, 9 parts AC foaming agent, 4 parts paraffin wax, 4 parts stearic acid, 8 parts dodecyl ammonium bromide, 5 parts polyethylene wax, and 55 parts dimethylformamide; the toughening agent is AES resin (model HW600GHI) and ASA resin (model G5120) in a mass ratio of 9:1. A method for preparing a high-comfort polymer composite material for a car seat cover comprises the following steps: S1. Mixing silicon dioxide, paraffin, stearic acid, dodecyl ammonium bromide, polyethylene wax, and dimethylformamide to obtain a primary mixture; S2. adding the remaining raw materials to the primary mixture and mixing them to obtain a polyurethane slurry; S3. Scalp-coat the polyurethane slurry on release paper and form it at 120° C. to obtain a high-comfort polymer composite material for automobile seat covers.

[0026] Example 3 A high-comfort polymer composite material for automotive seat covers, comprising the following raw materials in parts by weight: 90 parts polyurethane (model 1185A), 10 parts toughening agent, 8 parts silica, 8 parts AC foaming agent, 2 parts paraffin wax, 4 parts stearic acid, 5 parts dodecyl ammonium bromide, 4 parts polyethylene wax, and 50 parts dimethylformamide; the toughening agent is AES resin (model HW600GHI) and ASA resin (model G5120) in a mass ratio of 1:9. A method for preparing a high-comfort polymer composite material for a car seat cover comprises the following steps: S1. Mixing silicon dioxide, paraffin, stearic acid, dodecyl ammonium bromide, polyethylene wax, and dimethylformamide to obtain a primary mixture; S2. adding the remaining raw materials to the primary mixture and mixing them to obtain a polyurethane slurry; S3. Scalp-coat the polyurethane slurry on release paper and form it at 120° C. to obtain a high-comfort polymer composite material for automobile seat covers.

[0027] Example 4 The only difference between this embodiment and embodiment 3 is that the toughening agents are AES resin (model HW600GHI) and ASA resin (model G5120) in a mass ratio of 2:1.

[0028] Example 5 The only difference between this embodiment and embodiment 3 is that the toughening agents are AES resin (model HW600GHI) and ASA resin (model G5120) in a mass ratio of 5:1.

[0029] Example 6 The only difference between this embodiment and embodiment 5 is that silicon dioxide is replaced by polybutylene succinate composite silicon dioxide. The preparation method of polybutylene succinate composite silicon dioxide includes the following steps: A1. Preparation of composite particles: polybutylene succinate and silicon dioxide were dried, blended for 12 minutes, and extruded into granules to obtain composite particles; A2. Extraction of modified silica: The composite particles were mixed with dimethylformamide at 8000 rpm for 20 min. The solid was collected by filtration and dried to obtain polybutylene succinate composite silica; the mass ratio of polybutylene succinate to silica was 20:1; the mass ratio of polybutylene succinate to dimethylformamide was 1:80; the model of polybutylene succinate was 3001MD.

[0030] Example 7 The only difference between this embodiment and embodiment 5 is that silicon dioxide is replaced by polybutylene succinate composite silicon dioxide. The preparation method of polybutylene succinate composite silicon dioxide includes the following steps: A1. Preparation of composite particles: polybutylene succinate and silicon dioxide were dried, blended for 18 minutes, and extruded into granules to obtain composite particles; A2. Extraction of modified silica: The composite particles were mixed with dimethylformamide at 10,000 rpm for 15 minutes. The solid was collected by filtration and dried to obtain polybutylene succinate composite silica; the mass ratio of polybutylene succinate to silica was 15:1; the mass ratio of polybutylene succinate to dimethylformamide was 1:80; the model of polybutylene succinate was 3001MD.

[0031] Comparative Example 1 The only difference between this comparative example and Example 3 is that the toughening agent is AES resin (model HW600GHI).

[0032] Comparative Example 2 The only difference between this comparative example and Example 3 is that the toughening agent is ASA resin (model G5120).

[0033] Experimental example The high-comfort polymer composite materials for automobile seat covers prepared in Examples 1 to 7 and Comparative Examples 1 and 2 were respectively subjected to tensile strength and elongation at break tests in accordance with standard GB / T 1040.3-2006 "Determination of tensile properties of plastics - Part 3: Test conditions for films and sheets". The specimen type was 1B, the thickness was 1 mm, and the test speed was 50 mm / min. The results are shown in Table 1 below.

[0034] Table 1 Performance test results

[0035] Compared with Comparative Examples 1-2, the high-comfort polymer composite materials for automobile seat covers prepared in Examples 1-7 have higher elongation at break, indicating that the addition of AES resin and ASA resin synergistically improves the toughness of the polyurethane composite material and ensures the comfort of the seat cover.

[0036] Compared with Examples 3 and 4, the high-comfort polymer composite material for automobile seat covers prepared in Example 5 has a higher elongation at break, indicating that when the mass ratio of AES resin to ASA resin is greater than 2, the toughness of the polyurethane composite material is further improved.

[0037] Compared with Example 5, the tensile strength of the high-comfort polymer composite materials for automobile seat covers prepared in Examples 6-7 is higher, indicating that the addition of polybutylene succinate composite filler further improves the strength of the polyurethane composite material while ensuring the toughness of the polyurethane composite material.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. High-comfort polymer composite material for automobile seat covers, characterized in that: The invention comprises the following raw materials in parts by weight: 85-95 parts of polyurethane, 8-12 parts of toughening agent, 4-12 parts of filler, 6-9 parts of foaming agent, 3-8 parts of phase change temperature regulating agent, 2-8 parts of surfactant, 1-5 parts of matting agent and 40-55 parts of solvent; the toughening agent comprises AES resin and ASA resin.

2. The high-comfort polymer composite material for automobile seat covers according to claim 1, characterized in that: The mass ratio of the AES resin to the ASA resin is 1:9 to 9:

1.

3. The high-comfort polymer composite material for automobile seat covers according to claim 2, characterized in that: The mass ratio of the AES resin to the ASA resin is greater than 2.

4. The high-comfort polymer composite material for automobile seat covers according to claim 1, characterized in that: The filler includes one or both of graphene oxide and silicon dioxide.

5. The high-comfort polymer composite material for automobile seat covers according to claim 1, characterized in that: The filler is a polybutylene succinate composite filler.

6. The high-comfort polymer composite material for automobile seat covers according to claim 5, characterized in that: The preparation method of the polybutylene succinate composite filler comprises the following steps: A1. Preparation of composite particles: polybutylene succinate and filler are blended and extruded into granules to obtain composite particles; A2. Extraction of modified filler: The composite particles are mixed with an organic solvent, filtered, the solid is collected, and dried to obtain a polybutylene succinate composite filler.

7. The high-comfort polymer composite material for automobile seat covers according to claim 6, characterized in that: The mixing speed is 8000-10000 rpm and the mixing time is 15-20 min; The blending time is 12 to 18 minutes.

8. The high-comfort polymer composite material for automobile seat covers according to claim 6, characterized in that: The mass ratio of the polybutylene succinate to the filler is 15-20:1; The mass ratio of the polybutylene succinate to the organic solvent is 1:80-100.

9. The high-comfort polymer composite material for automobile seat covers according to claim 1, characterized in that: The matting agent includes one or both of polyethylene wax and polypropylene wax; The phase change temperature regulating agent includes paraffin and stearic acid.

10. A method for preparing a high-comfort polymer composite material for automobile seat covers, for preparing the high-comfort polymer composite material for automobile seat covers according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, mixing filler, phase change temperature regulating agent, surfactant, matting agent and solvent to obtain a primary mixture; S2, adding the remaining raw materials to the primary mixture and mixing them to obtain a polyurethane slurry; S3. Scalping the polyurethane slurry onto release paper to form a high-comfort polymer composite material for automobile seat covers.

Images