TPE elastomer material and preparation method thereof

Abstract

The invention relates to a TPE elastomer material and a preparation method thereof. The TPE elastomer material is composed of the following components in parts by weight: 15-35 parts of a first TPE elastomer; 15 to 35 parts of a second TPE elastomer; 10 to 25 parts of naphthenic oil; 10 to 25 parts of polypropylene resin; 10 to 30 parts of a halogen-free flame retardant; 10 to 20 parts of a flame retardant synergist; 0.5 to 5 parts of a deodorant; 0.2 to 1 part of an antioxidant; 0.3 to 2 parts of a lubricant; 1-3 parts of a first light stabilizer; and 1-3 parts of a second light stabilizer. The invention provides the TPE elastomer material which has flame retardant property while keeping excellent elasticity and mechanical property.

Description

Technical Field

[0001] The invention relates to the technical field of polymer materials, and in particular to a TPE elastomer material and a preparation method thereof. Background Art

[0002] In recent years, with the increasing awareness of environmental protection and the continuous improvement of material performance requirements, low-odor, high-flame-retardant, halogen-free thermoplastic elastomer (TPE) materials have been increasingly used in various fields. In certain specific applications, traditional TPE materials often have disadvantages such as strong odor, poor flame retardant performance, and halogen content. These disadvantages limit their use in some high-demand occasions, such as electronic appliances, cable sheaths, and automotive interiors, which have higher requirements for flame retardant properties, low odor, and environmental protection characteristics of materials.

[0003] At present, there are many modified TPE materials on the market, which use different flame retardants, antioxidants, light stabilizers and other additives to improve material performance. However, these technical solutions still have shortcomings in terms of comprehensive performance, and cannot take into account multiple characteristics such as low odor, high flame retardancy and halogen-free at the same time.

[0004] Therefore, the existing technology needs to be improved. Summary of the invention

[0005] In the prior art, the existing thermoplastic elastomer (TPE) materials still have deficiencies in comprehensive performance and cannot simultaneously take into account multiple properties such as low odor, high flame retardancy and halogen-free. Therefore, the present invention provides a TPE elastomer material and a preparation method thereof for solving the above problems.

[0006] To achieve the above object, in a first aspect, the present invention provides a TPE elastomer material, which is composed of the following components in parts by weight: The first TPE elastomer, 15-35 parts; Second TPE elastomer, 15-35 parts; Naphthenic oil, 10-25 parts; Polypropylene resin, 10-25 parts; Halogen-free flame retardant, 10-30 parts; Flame retardant synergist, 10-20 parts; Deodorant, 0.5-5 parts; Antioxidant, 0.2-1 part; Lubricant, 0.3-2 parts; First light stabilizer, 1-3 parts; Second light stabilizer, 1-3 parts.

[0007] In one implementation, the first TPE elastomer is any one of a 1,3-butadiene-vinylbenzene copolymer, a styrene-butadiene-styrene copolymer, and a styrene-isoprene-styrene copolymer.

[0008] In one implementation, the second TPE elastomer is any one of a block copolymer of 1,3-butadiene, divinylbenzene and styrene, a styrene-ethylene-butadiene-styrene copolymer and a styrene-ethylene-propylene-styrene copolymer.

[0009] In one implementation, the halogen-free flame retardant is any one of melamine polyphosphate compounds, aluminum hydroxide, magnesium hydroxide and phosphate flame retardants; The flame retardant synergist is a mixture of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite, antimony oxide and zinc borate; The deodorant is any one of a mixture of organic montmorillonite and zinc oxide, activated carbon, zeolite and titanium dioxide; The antioxidant is any one of tris[2,4-di-tert-butylphenyl]phosphite, hindered phenol antioxidants, and phosphite antioxidants; The lubricant is any one of a mixture of zinc stearate and silicone lubricating oil, calcium stearate, polytetrafluoroethylene powder and polydimethylsiloxane.

[0010] In one implementation, the first light stabilizer is any one of a stereohindered amine stabilizer, a hindered amine light stabilizer, and an ultraviolet absorber; The second light stabilizer is a light stabilizer with a molecular weight>3500 or a high molecular weight hindered amine light stabilizer.

[0011] In one implementation, the specific gravity of the first TPE elastomer is 0.85-0.90 g / cm³, the elongation at break is >900%, and the Shore hardness is 30-35; the specific gravity of the second TPE elastomer is 0.93-0.97 g / cm³, the elongation at break is >20%, and the Shore hardness is 70-75.

[0012] In one implementation, the mixing ratio of the organic montmorillonite and zinc oxide in the deodorant is 1:0.2 to 1:5.

[0013] In one implementation, the mass fraction of phosphorus in the halogen-free flame retardant is 17-20%, and the mass fraction of nitrogen is 20-22%.

[0014] In a second aspect, the present invention further provides a method for preparing a TPE elastomer material, which comprises the following specific steps: S1. Weigh each raw material component according to the weight proportion of the TPE elastomer material according to any one of claims 1 to 8; S2, putting the first TPE elastomer, the second TPE elastomer and the cyclohexane oil into a mixer, stirring at a low speed for 10 to 15 minutes, and standing for 24 to 36 hours after being fully mixed to allow the elastomer to fully swell; adding the halogen-free flame retardant, the flame retardant synergist and the deodorant into the mixer, stirring at a low speed for 5 to 10 minutes to allow them to be fully mixed; S3, adding the mixed material in S2 together with other raw materials into a high-efficiency twin-screw extruder for melt extrusion, controlling the extrusion temperature between 190°C and 210°C to ensure uniform melting of the raw materials; S4. The molten material is rapidly cooled by an efficient cooling system until the material solidifies, the cooling temperature is controlled between 15° C. and 25° C., and cutting and drying are performed to obtain the TPE elastomer material.

[0015] In one implementation, in S4, vacuum drying or microwave drying is used during drying to ensure that the moisture content of the material is ≤0.1%.

[0016] Beneficial effects: The present invention provides a TPE elastomer material, which has reasonable raw material components and a special preparation process, wherein the odor is effectively reduced by adding a deodorant, meets environmental protection requirements, significantly reduces the odor of the material, and improves the use experience; a halogen-free flame retardant is used, and a flame retardant synergist combination of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite is used to significantly improve the flame retardant properties of the material, so that it exhibits excellent flame retardant effects during combustion; through a specific preparation process and a reasonable component ratio, the material exhibits good fluidity and stability during processing, and is suitable for a variety of processing technologies, such as injection molding, extrusion, etc., which improves the processing adaptability and production efficiency of the material, and provides a TPE elastomer material that has flame retardant properties while maintaining excellent elasticity and mechanical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flow chart of the steps of the TPE elastomer material and the preparation method thereof provided by the present invention.

[0018] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the description of the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" described below means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms is not necessarily for the same embodiment or example. Moreover, the technical features involved in each embodiment of the present invention can be combined with each other as long as they do not conflict with each other.

[0020] The present invention provides a TPE elastomer material, which is composed of the following components in parts by weight: The first TPE elastomer, 15-35 parts; Second TPE elastomer, 15-35 parts; Naphthenic oil, 10-25 parts; Polypropylene resin, 10-25 parts; Halogen-free flame retardant, 10-30 parts; Flame retardant synergist, 10-20 parts; Deodorant, 0.5-5 parts; Antioxidant, 0.2-1 part; Lubricant, 0.3-2 parts; First light stabilizer, 1-3 parts; Second light stabilizer, 1-3 parts.

[0021] Specifically, the first TPE elastomer is any one of 1,3-butadiene and vinylbenzene copolymer, styrene-butadiene-styrene (SBS) copolymer and styrene-isoprene-styrene (SIS) copolymer. Preferably, the first TPE elastomer is 1,3-butadiene and vinylbenzene copolymer. The second TPE elastomer is any one of 1,3-butadiene and divinylbenzene and styrene block copolymer, styrene-ethylene-butadiene-styrene (SEBS) copolymer and styrene-ethylene-propylene-styrene (SEPS) copolymer. Preferably, the second TPE elastomer is a block copolymer of 1,3-butadiene and divinylbenzene and styrene. In this solution, the combination of the first TPE elastomer and the second TPE elastomer can provide a wider range of performance advantages. The first TPE elastomer (such as 1,3-butadiene and vinylbenzene copolymer) has high flexibility and elasticity, while the second TPE elastomer (such as 1,3-butadiene and divinylbenzene and styrene block copolymer) performs better in heat resistance and mechanical strength. By combining the two, an optimal balance can be achieved between the flexibility, strength and heat resistance of the material, while the comprehensive performance of the material can be improved, such as improving elongation at break, hardness and wear resistance. In addition, the use of two different elastomers can optimize production costs, and the ratio of the two materials can be adjusted as needed to achieve the established performance standards without relying on a single expensive material.

[0022] Furthermore, the specific gravity of the first TPE elastomer is 0.85-0.90 g / cm³, the elongation at break is >900%, and the Shore hardness is 30-35; the specific gravity of the second TPE elastomer is 0.93-0.97 g / cm³, the elongation at break is >20%, and the Shore hardness is 70-75.

[0023] Specifically, the halogen-free flame retardant is any one of melamine polyphosphate complex, aluminum hydroxide (ATH), magnesium hydroxide (MH) and phosphate flame retardant. Preferably, the halogen-free flame retardant is a melamine polyphosphate complex, and further, the mass fraction of phosphorus in the halogen-free flame retardant is 17-20%, and the mass fraction of nitrogen is 20-22%. Specifically, the flame retardant synergist is a mixture of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite, antimony oxide and zinc borate. Preferably, the flame retardant synergist is a mixture of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite. By using melamine polyphosphate complex as a halogen-free flame retardant, and supplemented with a flame retardant synergist combination of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite, the flame retardant properties of the material are significantly improved, while avoiding the generation of harmful gases during the combustion process of traditional halogen-containing flame retardants, so that it exhibits excellent flame retardant effects during the combustion process, meeting high standards of flame retardant requirements.

[0024] The deodorant is any one of a mixture of organic montmorillonite and zinc oxide, activated carbon, zeolite and titanium dioxide. Preferably, the deodorant is a mixture of organic montmorillonite and zinc oxide, and further, the mixing ratio of organic montmorillonite and zinc oxide in the deodorant is 1:0.2 to 1:5. By adding a mixed deodorant of organic montmorillonite and zinc oxide to the material, the volatile organic compounds (VOCs) in the material are effectively adsorbed and neutralized, the odor of the material is significantly reduced, and the use experience is improved. It is particularly suitable for applications that are sensitive to odors, such as automotive interiors and household items.

[0025] The antioxidant is any one of tris[2,4-di-tert-butylphenyl]phosphite, hindered phenol antioxidants (such as BHT), and phosphite antioxidants (such as Tris(nonylphenyl) phosphite). Preferably, the antioxidant is tris[2,4-di-tert-butylphenyl]phosphite.

[0026] The lubricant is any one of a mixture of zinc stearate and silicone lubricating oil, calcium stearate, polytetrafluoroethylene (PTFE) powder and polydimethylsiloxane. Preferably, the lubricant is a mixture of zinc stearate and silicone lubricating oil.

[0027] The first light stabilizer is any one of a stereo-hindered amine stabilizer, a hindered amine light stabilizer (HALS) and an ultraviolet absorber (such as UV-531). Preferably, the first light stabilizer is a stereo-hindered amine stabilizer. The second light stabilizer is a light stabilizer with a molecular weight>3500 or a high molecular weight hindered amine light stabilizer. Preferably, the second light stabilizer is a light stabilizer with a molecular weight>3500. The combination of the first light stabilizer and the second light stabilizer in the present invention can provide more comprehensive ultraviolet and photooxidation protection. Among them, the first light stabilizer can be a hindered amine stabilizer (HALS), which is mainly used to capture free radicals and prevent the degradation of polymer chains. The second light stabilizer can be a high molecular weight hindered amine light stabilizer, which can provide long-lasting ultraviolet protection. By combining light stabilizers with different working mechanisms, the light resistance of the material under different environmental conditions is enhanced, thereby extending the service life of the material.

[0028] See also Figure 1 , Figure 1 The present invention also provides a method for preparing a TPE elastomer material, which comprises the following specific steps: S1. Weigh each raw material component according to the weight proportion of the TPE elastomer material according to any one of claims 1 to 8; S2, putting the first TPE elastomer, the second TPE elastomer and the cyclohexane oil into a mixer, stirring at a low speed for 10 to 15 minutes, and standing for 24 to 36 hours after being fully mixed to allow the elastomer to fully swell; adding the halogen-free flame retardant, the flame retardant synergist and the deodorant into the mixer, stirring at a low speed for 5 to 10 minutes to allow them to be fully mixed; S3, adding the mixed material in S2 together with other raw materials into a high-efficiency twin-screw extruder for melt extrusion, controlling the extrusion temperature between 190°C and 210°C to ensure uniform melting of the raw materials; S4. The molten material is rapidly cooled by an efficient cooling system until the material solidifies, the cooling temperature is controlled between 15° C. and 25° C., and cutting and drying are performed to obtain the TPE elastomer material.

[0029] Specifically, in S4, vacuum drying or microwave drying is used during drying to ensure that the moisture content of the material is ≤0.1%.

[0030] The present invention also provides multiple embodiments to verify the solution.

[0031] Example 1 A TPE elastomer material is provided in this embodiment, which is composed of the following components in parts by weight: First TPE elastomer (SBS): 20 parts Second TPE elastomer (SEBS): 20 parts Naphthenic oil: 15 parts Polypropylene resin: 15 parts Halogen-free flame retardant (melamine polyphosphate): 20 parts Flame retardant synergists (antimony oxide and zinc borate): 15 parts Deodorant (organic montmorillonite and zinc oxide, ratio 1:3): 2 parts Antioxidant (BHT): 0.5 parts Lubricant (zinc stearate): 1 part First light stabilizer (HALS): 2 parts Second light stabilizer (hindered amine light stabilizer with molecular weight>3500): 2 parts Preparation process of TPE elastomer material in this embodiment: Weigh each raw material component according to the formula; put the first TPE elastomer, the second TPE elastomer and cyclohexane oil into a mixer, stir at a low speed for 15 minutes, and let it stand for 36 hours after being fully mixed to allow the elastomer to fully swell; add a halogen-free flame retardant, a flame retardant synergist and a deodorant into the mixer, stir at a low speed for 5 minutes to allow them to be fully mixed; add the mixed material together with other raw materials into a high-efficiency twin-screw extruder for melt extrusion, and control the extrusion temperature between 190°C and 210°C to ensure uniform melting of the raw materials; quickly cool the melt through an efficient cooling system (a combination of air cooling and water cooling) until the material solidifies, and control the cooling temperature between 15°C and 25°C; in order to prevent material deformation or performance degradation, the cooled material is then cut into the required size and quickly dried (such as vacuum drying or microwave drying) to ensure that the material reaches a suitable moisture content (≤0.1%) to obtain the TPE elastomer material.

[0032] Example 2 A TPE elastomer material is provided in this embodiment, which is composed of the following components in parts by weight: First TPE elastomer (SIS): 15 parts Second TPE elastomer (SEPS): 25 parts Naphthenic oil: 20 parts Polypropylene resin: 20 parts Halogen-free flame retardant (phosphate ester): 15 parts Flame retardant synergist (phenyl aluminum hypophosphite): 10 parts Deodorant (activated carbon and zeolite, ratio 1:2): 3 parts Antioxidant (tris[2,4-di-tert-butylphenyl]phosphite): 0.8 parts Lubricant (polydimethylsiloxane): 1.5 parts First light stabilizer (UV-531): 1.5 parts Second light stabilizer (high molecular weight hindered amine light stabilizer): 2 parts The preparation process of the TPE elastomer material in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

[0033] Example 3 A TPE elastomer material is provided in this embodiment, which is composed of the following components in parts by weight: First TPE elastomer (SBS): 25 parts Second TPE elastomer (SEBS): 15 parts Naphthenic oil: 12 parts Polypropylene resin: 25 parts Halogen-free flame retardant (melamine polyphosphate): 25 parts Flame retardant synergist (antimony oxide): 20 parts Deodorant (zinc oxide and titanium dioxide, ratio 1:5): 1 part Antioxidant (phosphite): 1 part Lubricant (PTFE powder): 2 parts First light stabilizer (stereo-hindered amine stabilizer): 3 parts Second light stabilizer (high molecular weight hindered amine light stabilizer): 1 part The preparation process of the TPE elastomer material in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

[0034] Example 4 A TPE elastomer material is provided in this embodiment, which is composed of the following components in parts by weight: First TPE elastomer (1,3-butadiene and vinylbenzene copolymer): 25 parts Second TPE elastomer (block copolymer of 1,3-butadiene with divinylbenzene and styrene): 25 parts Naphthenic oil: 15 parts Polypropylene resin: 20 parts Halogen-free flame retardant (melamine polyphosphate compound): 20 parts Flame retardant synergist (mixture of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite): 15 parts Deodorant (mixture of organic montmorillonite and zinc oxide, 1:1): 2 parts Antioxidant (tris[2,4-di-tert-butylphenyl]phosphite): 0.5 parts Lubricant (mixture of zinc stearate and silicone lubricant, 1:1): 1 part First light stabilizer (stereo-hindered amine stabilizer): 2 parts Second light stabilizer (light stabilizer with molecular weight>3500): 2 parts The preparation process of the TPE elastomer material in this embodiment is the same as that in Embodiment 1, and will not be repeated here.

[0035] In order to evaluate the performance of the TPE elastomer material in each embodiment, a series of specific test experiments are required: (1) Oxygen index (LOI) test: The flame retardant properties of the material are measured using an oxygen index tester.

[0036] (2) Tensile strength and elongation at break test: The mechanical properties of the material were measured using a universal material testing machine (model: Instron 5567). The maximum tensile force (F) and the elongation at break (ΔL) were recorded. The tensile strength and elongation at break were calculated according to the formula: Tensile strength (σ) = F / A0 (A0 is the initial cross-sectional area of ​​the specimen) Elongation at break (ε) = ΔL / L0 * 100% (L0 is the initial gauge length of the specimen) (3) Shore hardness test: The hardness of the material is measured using a Shore hardness tester (Shore A type hardness tester).

[0037] (4) Odor test: The odor test box is used to evaluate the residual odor of the material after it is placed at room temperature for 24 hours. The odor evaluation adopts a five-level rating: 1-no odor, 2-slight odor, 3-medium odor, 4-obvious odor, and 5-strong odor.

[0038] The test results of each embodiment are shown in Table 1.

[0039] Table 1. Statistical table of test results of various embodiments According to the data in Table 1, after the TPE elastomer material provided in this embodiment is placed at room temperature for 24 hours, the odor of the material is significantly reduced to almost undetectable; its elongation at break is more than 900%, and the combination of the first TPE elastomer and the second TPE elastomer gives the material excellent mechanical properties, and the high tensile strength and high elongation at break enable the TPE elastomer material to have good durability and flexibility in practical applications; the Shore A hardness of Example 1, Example 3 and Example 4 is in the range of 30 to 35, and it can be seen that the antioxidants and lubricants in the formula ensure that the material has good stability and durability during processing and use; the Shore A hardness value in Example 2 is relatively large, and it can be obtained that since the second TPE elastomer used in Example 2 is a styrene-ethylene-propylene-styrene (SEPS) copolymer, this material generally has higher hardness and strength, which, compared with different copolymers (such as SEBS) used in other embodiments, leads to an increase in the overall hardness of the material. The TPE elastomer material provided by the present invention can maintain excellent elasticity and mechanical properties while ensuring low odor and high flame retardancy, has high elongation at break and moderate hardness, and meets the requirements of various application occasions for material mechanical properties.

[0040] In summary, the present invention provides a TPE elastomer material, which has reasonable raw material components and a special preparation process, wherein the odor is effectively reduced by adding a deodorant, meets environmental protection requirements, significantly reduces the odor of the material, and improves the use experience; adopts a halogen-free flame retardant, and is supplemented with a flame retardant synergist combination of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite, which significantly improves the flame retardant properties of the material, so that it exhibits excellent flame retardant effect during combustion; through a specific preparation process and a reasonable component ratio, the material exhibits good fluidity and stability during processing, and is suitable for a variety of processing technologies, such as injection molding, extrusion, etc., which improves the processing adaptability and production efficiency of the material, and provides a TPE elastomer material that has flame retardant properties while maintaining excellent elasticity and mechanical properties.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A TPE elastomer material, characterized in that: It is composed of the following components in parts by weight: The first TPE elastomer, 15-35 parts; Second TPE elastomer, 15-35 parts; Naphthenic oil, 10-25 parts; Polypropylene resin, 10-25 parts; Halogen-free flame retardant, 10-30 parts; Flame retardant synergist, 10-20 parts; Deodorant, 0.5-5 parts; Antioxidant, 0.2-1 part; Lubricant, 0.3-2 parts; First light stabilizer, 1-3 parts; Second light stabilizer, 1-3 parts.

2. The TPE elastomer material according to claim 1, characterized in that: The first TPE elastomer is any one of 1,3-butadiene and vinylbenzene copolymer, styrene-butadiene-styrene copolymer and styrene-isoprene-styrene copolymer.

3. The TPE elastomer material according to claim 1, characterized in that: The second TPE elastomer is any one of a block copolymer of 1,3-butadiene, divinylbenzene and styrene, a styrene-ethylene-butadiene-styrene copolymer and a styrene-ethylene-propylene-styrene copolymer.

4. The TPE elastomer material according to claim 1, characterized in that: The halogen-free flame retardant is any one of melamine polyphosphate compounds, aluminum hydroxide, magnesium hydroxide and phosphate flame retardants; The flame retardant synergist is a mixture of diethyl aluminum hypophosphite and phenyl aluminum hypophosphite, antimony oxide and zinc borate; The deodorant is any one of a mixture of organic montmorillonite and zinc oxide, activated carbon, zeolite and titanium dioxide; The antioxidant is any one of tris[2,4-di-tert-butylphenyl]phosphite, hindered phenol antioxidant and phosphite antioxidant; The lubricant is any one of a mixture of zinc stearate and silicone lubricating oil, calcium stearate, polytetrafluoroethylene powder and polydimethylsiloxane.

5. The TPE elastomer material according to claim 1, characterized in that: The first light stabilizer is any one of a stereo-hindered amine stabilizer, a hindered amine light stabilizer and a UV absorber; The second light stabilizer is a light stabilizer with a molecular weight>3500 or a high molecular weight hindered amine light stabilizer.

6. The TPE elastomer material according to claim 1, characterized in that: The specific gravity of the first TPE elastomer is 0.85-0.90 g / cm³, the elongation at break is >900%, and the Shore hardness is 30-35; the specific gravity of the second TPE elastomer is 0.93-0.97 g / cm³, the elongation at break is >20%, and the Shore hardness is 70-75.

7. The TPE elastomer material according to claim 1, characterized in that: The mixing ratio of the organic montmorillonite and zinc oxide in the deodorant is 1:0.2 to 1:

5.

8. The TPE elastomer material according to claim 1, characterized in that: The mass fraction of phosphorus in the halogen-free flame retardant is 17-20%, and the mass fraction of nitrogen is 20-22%.

9. A method for preparing a TPE elastomer material, characterized in that: The specific steps include: S1. Weigh each raw material component according to the weight proportion of the TPE elastomer material according to any one of claims 1 to 8; S2, putting the first TPE elastomer, the second TPE elastomer and the cyclohexane oil into a mixer, stirring at a low speed for 10 to 15 minutes, and standing for 24 to 36 hours after being fully mixed to allow the elastomer to fully swell; adding the halogen-free flame retardant, the flame retardant synergist and the deodorant into the mixer, stirring at a low speed for 5 to 10 minutes to allow them to be fully mixed; S3, adding the mixed material in S2 together with other raw materials into a high-efficiency twin-screw extruder for melt extrusion, controlling the extrusion temperature between 190°C and 210°C to ensure uniform melting of the raw materials; S4. The molten material is rapidly cooled by an efficient cooling system until the material solidifies, the cooling temperature is controlled between 15° C. and 25° C., and cutting and drying are performed to obtain the TPE elastomer material.

10. The method for preparing the TPE elastomer material according to claim 9, characterized in that: In S4, vacuum drying or microwave drying is used during drying to ensure that the moisture content of the material is ≤0.1%.

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