Thermoplastic elastomer composite material as well as preparation method and application thereof

Abstract

The invention relates to a thermoplastic elastomer composite material and a preparation method and application thereof, in the range of 0-50 DEG C, the tan delta value of the thermoplastic elastomer composite material is larger than or equal to 0.3, and preferably, the tan delta peak temperature of the composite material is in the range of 0-50 DEG C; the thermoplastic elastomer composite material provided by the invention has a good damping effect in a wide temperature range of 0-50 DEG C, and meanwhile, the high-temperature aging resistance and high-temperature compressive deformation performance of the thermoplastic elastomer material are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of thermoplastic materials, and particularly relates to a thermoplastic elastomer composite material, a preparation method thereof, and an application thereof. Background Art

[0002] All kinds of household appliances play an important role. However, during the use process, the noise and vibration generated by household appliances (such as washing machines, air conditioners, or refrigerators, etc.) will also cause troubles, and consumers are paying more and more attention to the noise reduction effect of household appliances.

[0003] A polymer damping material is a functional material that can absorb mechanical vibration and convert it into heat energy for absorption, and is widely used in vibration reduction and noise reduction. Currently, household appliances on the market generally use nitrile rubber and ethylene propylene diene monomer (EPDM) rubber foot pads as vibration reduction and noise reduction components and are installed on the box body or bottom surface of the appliance. Currently, most polymer damping materials use rubber as the main material. However, rubber needs to be vulcanized, with a long processing time and low efficiency, which is not conducive to high-efficiency automated production.

[0004] Thermoplastic elastomers (TPEs) generally have excellent application properties of rubber and can be thermoformed like thermoplastic plastics, with good processing fluidity. However, the direct processing is difficult, there are problems such as large compression deformation, excessive rigidity, and the performance in terms of oil resistance, solvent resistance, and use temperature is not as good as that of vulcanized rubber, and the price is relatively expensive. Moreover, the existing thermoplastic elastomer materials currently cannot achieve good vibration reduction and noise reduction effects at room temperature or higher use temperatures. Summary of the Invention

[0005] In order to solve the above technical problems, the present disclosure provides a thermoplastic elastomer composite material, a preparation method thereof, and an application thereof.

[0006] In a first aspect, the present disclosure provides a thermoplastic elastomer composite material. In the range of 0 - 50 °C, the tanδ value of the thermoplastic elastomer composite material ≥ 0.3.

[0007] As a preferred technical solution of the present disclosure, the peak temperature of tanδ of the composite material is 0 - 50 °C, preferably 10 - 35 °C.

[0008] As a preferred technical solution of the present disclosure, the peak value of tanδ of the composite material ≥ 0.5, preferably ≥ 0.8.

[0009] As a preferred technical solution of the present disclosure, by weight, it includes the following components:

[0010] 100 parts of thermoplastic elastomer, 0 - 80 parts of polyolefin resin, 20 - 120 parts of filling oil, 10 - 60 parts of tackifying resin, and 10 - 90 parts of inorganic filler.

[0011] As a preferred technical solution of the present disclosure, the thermoplastic elastomer is a polymer material and / or a hydrogenated polymer material, and the monomers of the polymer are selected from any one or a combination of at least two of styrene, ethylene, butadiene, isoprene, and propylene.

[0012] As a preferred technical solution of the present disclosure, the thermoplastic elastomer is selected from any one or a combination of at least two of styrene-ethylene-butadiene-styrene block copolymer, styrene-butadiene-styrene block copolymer, styrene-ethylene / propylene-styrene copolymer, styrene-ethylene / ethylene / propylene-styrene block copolymer, styrene-isobutene-styrene block copolymer, or styrene-isoprene-styrene block copolymer.

[0013] As a preferred technical solution of the present disclosure, the melt index of the polyolefin resin is 1-20 g / 10 min; preferably, it is any one or a combination of at least two of homopolypropylene, copolymerized polypropylene, high-density polyethylene, or low-density polyethylene.

[0014] As a preferred technical solution of the present disclosure, the filling oil is selected from any one or a combination of at least two of aromatic oil, naphthenic oil, alkylbenzene oil, paraffin oil, coconut oil, and castor oil, and is preferably paraffin oil and / or naphthenic oil.

[0015] As a preferred technical solution of the present disclosure, the tackifying resin is selected from oligomer resins with a molecular weight of less than 10,000, and is preferably any one or a combination of at least two of hydrocarbon resin, rosin resin, rosin derivative resin, terpene resin, hydrogenated terpene resin, phenolic resin, petroleum resin, dicyclopentadiene resin, coumarone resin, styrene series resin, alkylphenolic resin, and xylene resin, and is further preferably terpene resin and / or petroleum resin.

[0016] As a preferred technical solution of the present disclosure, the inorganic filler is selected from any one or a combination of at least two of graphite, mica, calcium carbonate, or barium sulfate.

[0017] As a preferred technical solution of the present disclosure, it further includes 0.1-0.5 parts of antioxidant and 0.1-0.5 parts of anti-aging agent.

[0018] As a preferred technical solution of the present disclosure, the antioxidant is selected from hindered phenolic antioxidants and / or phosphite antioxidants.

[0019] As a preferred technical solution of the present disclosure, the anti-aging agent is selected from any one or a combination of at least two of anti-aging agent RD, anti-aging agent MB, anti-aging agent 4010, or anti-aging agent AW.

[0020] As a preferred technical solution of the present disclosure, the hindered phenol antioxidant is selected from any one or a combination of at least two of antioxidant 1010, antioxidant 1076, or antioxidant 1790.

[0021] As a preferred technical solution of the present disclosure, the phosphite antioxidant is selected from any one or a combination of at least two of antioxidant 168, antioxidant 618, or antioxidant P-EPQ.

[0022] In a second aspect, the present disclosure provides a method for preparing the thermoplastic elastomer composite material described in the first aspect, and the preparation method includes:

[0023] Performing melt blending on the thermoplastic elastomer, filling oil, tackifying resin, and inorganic filler in a formulation amount, as well as optionally a polyolefin resin, an antioxidant, and an anti-aging agent, to obtain the thermoplastic elastomer composite material.

[0024] In a third aspect, the present disclosure provides an application of the thermoplastic elastomer composite material described in the first aspect in preparing shock-absorbing and noise-reducing parts.

[0025] The technical solutions provided by the embodiments of the present disclosure have the following advantages compared with the prior art:

[0026] (1) The thermoplastic elastomer composite material provided by the present disclosure can maintain high damping loss characteristics between 0 and 50 °C;

[0027] (2) The thermoplastic elastomer composite material provided by the present disclosure combines the flexibility of rubber and the thermoplasticity of plastic. It can be processed by common processing methods to obtain products of different sizes and structures. The preparation method is simple, and a high-damping material with excellent mechanical strength can be obtained without vulcanization;

[0028] (3) The composite material provided by the present disclosure does not require curing methods such as vulcanization, so its scraps, waste materials, products, etc. can all be recycled and reused. Description of the Drawings

[0029] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments that conform to the present disclosure, and are used together with the specification to explain the principles of the present disclosure.

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1A picture of the dynamic thermomechanical analyzer used to test the loss factor tanδ value in the embodiments of the present disclosure. Detailed implementation manners

[0032] In order to more clearly understand the above objects, features, and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0033] Currently, rubber-based foot pads are usually used for shock-absorbing and noise-reducing components. During the preparation of rubber foot pads, vulcanization is required, and the processing time is relatively long, indirectly resulting in relatively high costs. Currently, thermoplastic elastomers also have the function of shock absorption and noise reduction, but their costs are relatively high, and when used at room temperature or a higher temperature range, their shock absorption and noise reduction effects cannot meet the expectations. Therefore, the present disclosure provides a thermoplastic elastomer material that still has good damping effects in a wide temperature range.

[0034] In a first aspect, the present disclosure provides a thermoplastic elastomer composite material. In the range of 0 - 50°C, the tanδ value of the thermoplastic elastomer composite material ≥ 0.3.

[0035] The tanδ referred to in the present disclosure refers to the damping loss factor. The loss factor tanδ refers to the tangent of δ of the material, which is the ratio of the loss modulus (E″) of the material to the storage modulus (E′) of the material. In the present disclosure, tanδ can be measured by the TA Q800 stress / strain mode of the dynamic thermomechanical analyzer, at an oscillation frequency of 30 Hz, and at a heating rate of 1°C per minute in the temperature range of -20°C to 50°C.

[0036] The loss factor of the thermoplastic elastomer composite material provided by the present disclosure meets the requirement of ≥ 0.3 in the range of 0 - 50°C, that is, the composite material provided by the present disclosure can maintain high damping loss characteristics at 0 - 50°C, that is, it has excellent shock absorption and noise reduction performance in the range of 0 - 50°C, and the application temperature range is relatively wide.

[0037] By selecting appropriate types of TPE thermoplastic elastomers and other components and cooperating with each other in appropriate proportions, the thermoplastic elastomer composite material provided by the present disclosure can have good mechanical properties. At the same time, it has good damping effects within 0 - 50°C, and the composite material provided by the present disclosure has excellent high-temperature aging resistance and high-temperature compression set performance.

[0038] As a preferred technical solution of the present disclosure, the peak temperature of the tanδ of the composite material is 0 - 50°C, such as 10°C, 20°C, 30°C, 40°C, etc., preferably 10 - 35°C, such as 15°C, 18°C, 20°C, 22°C, 25°C, 28°C, 30°C, 32°C, 34°C, etc.

[0039] The present disclosure preferably has the peak temperature of tanδ of the composite material within its service temperature range (0 to 50°C, preferably 10 to 35°C), so as to ensure that the composite material has a better tanδ value within its service temperature range, and further ensure that the composite material has excellent damping performance within the service temperature range and can be used as a shock-absorbing and noise-reducing component for household appliances.

[0040] As a preferred technical solution of the present disclosure, the peak value of tanδ of the composite material is ≥0.5, such as 0.55, 0.6, 0.65, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.4, 1.5, etc., preferably ≥0.8.

[0041] The peak temperature of tanδ described in the present disclosure refers to the temperature at which a prominent peak appears in tanδ relative to the material temperature at different test temperatures (-20°C to 50°C), and the peak value of tanδ refers to the value of tanδ corresponding to the peak temperature of tanδ.

[0042] The present disclosure defines that the peak temperature of tanδ of the composite material is preferably within the service temperature range, and at the same time the peak value of tanδ is preferably above 0.8, which can fully ensure that the composite material has excellent damping performance and is sufficient to meet the application requirements.

[0043] As a preferred technical solution of the present disclosure, by weight, it includes the following components:

[0044] 100 parts of thermoplastic elastomer, 0 - 80 parts of polyolefin resin, 20 - 120 parts of filling oil, 10 - 60 parts of tackifying resin, and 10 - 90 parts of inorganic filler.

[0045] The polyolefin can be 5 parts, 10 parts, 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, etc.

[0046] The filling oil can be 30 parts, 40 parts, 50 parts, 60 parts, 80 parts, 100 parts, etc.

[0047] The tackifying resin can be 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, etc.

[0048] The inorganic filler can be 20 parts, 30 parts, 40 parts, 50 parts, 60 parts, 70 parts, 80 parts, etc.

[0049] As a preferred technical solution of the present disclosure, the thermoplastic elastomer is a polymer material and / or a hydrogenated polymer material, and the monomer of the polymer is selected from any one or at least two combinations of styrene, ethylene, butadiene, isoprene, and propylene.

[0050] As a preferred technical solution of the present disclosure, the thermoplastic elastomer is selected from any one or a combination of at least two of styrene-ethylene-butadiene-styrene block copolymer (SEBS), styrene-butadiene-styrene block copolymer (SBS), styrene-ethylene / propylene-styrene copolymer (SEPS), styrene-ethylene / ethylene / propylene-styrene block copolymer (SEEPS), styrene-isobutylene-styrene block copolymer (SIBS), or styrene-isoprene-styrene block copolymer (SIS).

[0051] In the present disclosure, the above-mentioned thermoplastic elastomer material has the advantages of an elastomer and does not require vulcanization. However, in the range of 0-50 °C, the damping performance is poor and it is not suitable for application. The present disclosure can enable the obtained composite material to have excellent application effects by introducing the cooperation of other components.

[0052] As a preferred technical solution of the present disclosure, the melt index of the polyolefin resin is 1-20 g / 10 min, such as 2 g / 10 min, 4 g / 10 min, 5 g / 10 min, 6 g / 10 min, 8 g / 10 min, 10 g / 10 min, 12 g / 10 min, 15 g / 10 min, 18 g / 10 min, etc.; preferably any one or a combination of at least two of homopolypropylene, copolymerized polypropylene, high-density polyethylene, or low-density polyethylene.

[0053] The polyolefin resin preferably used in the present disclosure has relatively excellent mechanical properties, good wear resistance and environmental stress cracking resistance, and at the same time has a relatively high elastic modulus and surface hardness. Therefore, when it is combined with the thermoplastic elastomer, the composite material can have a relatively high peak temperature of tanδ, which is convenient for better application.

[0054] As a preferred technical solution of the present disclosure, the filling oil is selected from any one or a combination of at least two of aromatic oil, naphthenic oil, alkylbenzene oil, paraffin oil, coconut oil, and castor oil, and is preferably paraffin oil and / or naphthenic oil.

[0055] The introduction of the filling oil can widen the effective damping temperature range of the composite material. If the addition amount is too large, it will cause an increase in creep and stress relaxation of the material, and instead lead to a decrease in the damping performance of the composite material.

[0056] As a preferred technical solution of the present disclosure, the tackifying resin is selected from oligomer resins with a molecular weight of less than 10,000, and is preferably any one or a combination of at least two of hydrocarbon resin, rosin resin, rosin derivative resin, terpene resin, hydrogenated terpene resin, phenolic resin, petroleum resin, dicyclopentadiene resin, coumarone resin, styrene series resin, alkylphenolic resin, and xylene resin, and is further preferably terpene resin and / or petroleum resin.

[0057] As a preferred technical solution of the present disclosure, the inorganic filler is selected from any one or a combination of at least two of graphite, mica, calcium carbonate or barium sulfate.

[0058] The introduction of the filler can increase the internal friction between the polymer segments and the filler or between the fillers, resulting in an increase in the damping of the composite material. Therefore, the introduction of the filler in the present disclosure can improve the damping performance of the composite material.

[0059] As a preferred technical solution of the present disclosure, it further includes 0.1 - 0.5 parts of antioxidant and 0.1 - 0.5 parts of anti-aging agent.

[0060] The antioxidant can be 0.2 parts, 0.3 parts, 0.4 parts, etc., and the anti-aging agent can be 0.2 parts, 0.3 parts, 0.4 parts, etc.

[0061] As a preferred technical solution of the present disclosure, the antioxidant is selected from hindered phenol antioxidants and / or phosphite antioxidants.

[0062] As a preferred technical solution of the present disclosure, the anti-aging agent is selected from any one or a combination of at least two of anti-aging agent RD (2,2,4-trimethyl-1,2-dihydroquinoline polymer), anti-aging agent MB (2-mercaptobenzimidazole), anti-aging agent 4010 (N-isopropyl-N'-phenyl-p-phenylenediamine) or anti-aging agent AW (6-ethoxy-2,2,4-trimethyl-1,2-dihydroquinoline).

[0063] As a preferred technical solution of the present disclosure, the hindered phenol antioxidant is selected from any one or a combination of at least two of antioxidant 1010 (pentaerythritol tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate]), antioxidant 1076 (n-octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate) or antioxidant 1790 (tris(4-tert-butyl-3-hydroxy-2,6-dimethylphenyl) isocyanurate).

[0064] As a preferred technical solution of the present disclosure, the phosphite antioxidant is selected from any one or a combination of at least two of antioxidant 168 (tris(2,4-di-tert-butyl)phenyl phosphite), antioxidant 618 (dioctadecyl pentaerythritol diphosphite) or antioxidant P-EPQ (tetrakis(2,4-di-tert-butylphenyl)-4,4'-biphenylyl diphosphite).

[0065] The present disclosure finds that current thermoplastic elastomer materials, as pure polymers, have a low damping loss factor, especially in the temperature range at or above room temperature, and their damping effect is poor. Therefore, they cannot be used as shock-absorbing and noise-reducing components. By introducing polyolefins and tackifying resins with relatively low molecular weights, etc., the composite material can obtain a higher peak temperature of tanδ and a higher tanδ value. At the same time, the introduction of filled oil can widen the effective damping temperature range of the thermoplastic elastomer composite material and increase the peak value of tanδ. The introduction of inorganic fillers can also improve the damping performance of the composite material and widen the damping temperature range of the composite material. Therefore, through the cooperation of each component, the present disclosure can enable the composite material to have an excellent damping effect in a relatively wide temperature range.

[0066] In a second aspect, the present disclosure provides a method for preparing the thermoplastic elastomer composite material described in the first aspect, and the preparation method includes:

[0067] Performing melt blending on a formulation amount of a thermoplastic elastomer, a filled oil, a tackifying resin, and an inorganic filler, and optionally a polyolefin resin, an antioxidant, and an anti-aging agent to obtain the thermoplastic elastomer composite material.

[0068] The present disclosure does not overly limit the preparation method, as long as the requirements for melt blending are met. For example, methods such as melt extrusion and internal mixing can be used. The present disclosure also does not limit the shape of the composite material, etc. It only needs to use corresponding methods to obtain the corresponding shape during the preparation process. The present disclosure gives exemplary listings, and methods such as calendering, blow molding, or foaming, molding, etc. can be used, as long as the application requirements can be met.

[0069] In a third aspect, the present disclosure provides an application of the thermoplastic elastomer composite material described in the first aspect in the preparation of shock-absorbing and noise-reducing components.

[0070] The thermoplastic elastomer composite material provided by the present disclosure can maintain high damping loss characteristics between 0 and 50 °C, and it combines the flexibility of rubber and the thermoplasticity of plastic. It can obtain products with different sizes and structures through common processing methods. The preparation method is simple, and a high-damping material with excellent mechanical strength can be obtained without vulcanization. Moreover, the composite material provided by the present disclosure does not require curing methods such as vulcanization, so its scraps, waste materials, products, etc. can all be recycled and reused.

[0071] Many specific details are set forth in the following description in order to provide a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all the embodiments.

[0072] The information of some raw materials used in the following examples and comparative examples is shown in Table 1:

[0073] Table 1

[0074]

[0075]

[0076] The specific examples and comparative examples are as follows:

[0077] Examples 1 - 13

[0078] This example provides a thermoplastic elastomer composite material, and its composition is shown in Table 2 and Table 3. The preparation method is as follows:

[0079] Mix the components in the formula amount and perform melt mixing using a twin-screw extruder at 195 °C and 500 r / min to obtain pellets, and then obtain the samples to be tested through injection molding for performance testing, where:

[0080] (1) Shore hardness: Test using an ASKER C type high molecular rubber hardness tester with reference to GB / T 531.1;

[0081] (2) Elongation at break and tensile strength: Test using a YangYang Electronics WN-1-001 universal testing machine with reference to GB / T528;

[0082] (3) Compression set: Test using a MHH-1000AT constant temperature and humidity chamber of Taiqi Technology (Suzhou) Co., Ltd. with reference to GB / T 7759.1;

[0083] (4) tanδ value: Test with a dynamic thermomechanical analyzer TA Q800 in stress / strain mode, 30 Hz oscillation frequency, and heating at a rate of 1 °C per minute in the temperature range of -20 °C to 50 °C;

[0084] The test results are shown in Table 2 - 3.

[0085] Table 2

[0086]

[0087]

[0088] Note: The tanδ value in the table refers to the lowest value of tanδ in the range of 0 - 50 °C.

[0089] Table 3

[0090]

[0091] Note: The tanδ value in the table refers to the lowest value of tanδ in the range of 0 - 50°C.

[0092] Examples 14 - 16

[0093] This example provides a thermoplastic elastomer composite material, and its composition is shown in Table 4. The preparation method and the testing method refer to Example 1, and the test results are shown in Table 4:

[0094] Table 4

[0095]

[0096] Note: The tanδ value in the table refers to the lowest value of tanδ in the range of 0 - 50°C.

[0097] Comparative Example 1

[0098] This comparative example provides a damping rubber composite material, which is composed of the following components by weight:

[0099] 100 parts of bromobutyl rubber, 25 parts of waste rubber powder, 30 parts of rosin resin, 1.5 parts of sulfur, 1.0 part of tetramethylthiuram disulfide, 1.5 parts of zinc oxide, 3 parts of paraffin oil, 30 parts of carbon black, 3 parts of 2,2,4 - trimethyl - 1,2 - dihydroquinoline polymer.

[0100] The preparation method parameters include:

[0101] The first mixing temperature is 95.0°C, and the time is 5.0 min; the second mixing temperature is 95.0°C, and the time is 3.0 min; the vulcanization temperature is 170°C, the time is 4.0 min, and the pressure is 12.0 MPa.

[0102] Its test results are shown in Table 5:

[0103] Table 5

[0104] - Example 1 Comparative Example 1 Shore hardness 67 53.0 Elongation at break / % 573.5 737.0 Tensile strength / Mpa 14.52 14.2 Compression set / % 34.56 16.0 tanδ value (25 °C, 30 Hz) 1.41 1.12

[0105] From the comparison between the examples and the comparative examples, it can be seen that the damping factor of the composite material provided by the present disclosure has a certain improvement, and the preparation method is simpler. The target parts can be obtained only by simple mixing and processing.

[0106] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0107] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermoplastic elastomer composite material, characterized in that, In the range of 0 - 50 °C, the tanδ value of the thermoplastic elastomer composite is ≥ 0.

3.

2. The thermoplastic elastomer composite material according to claim 1, characterized in that, The Tanδ peak temperature of the composite is 0 - 50 °C, preferably 10 - 35 °C; and / or, the tanδ peak of the composite is ≥ 0.5, preferably ≥ 0.

8.

3. The thermoplastic elastomer composite material according to claim 1 or 2, characterized in that, By weight, it includes the following components: 100 parts of thermoplastic elastomer, 0 - 80 parts of polyolefin resin, 20 - 120 parts of filling oil, 10 - 60 parts of tackifying resin, and 10 - 90 parts of inorganic filler.

4. The thermoplastic elastomer composite material according to claim 3, characterized in that, The thermoplastic elastomer is a polymer material and / or a hydrogenated polymer material, and the monomer of the polymer is selected from any one or at least two combinations of styrene, ethylene, butadiene, isoprene, and propylene; Preferably, the thermoplastic elastomer is selected from any one or at least two combinations of styrene - ethylene - butadiene - styrene block copolymer, styrene - butadiene - styrene block copolymer, styrene - ethylene / propylene - styrene copolymer, styrene - ethylene / ethylene / propylene - styrene block copolymer, styrene - isobutylene - styrene block copolymer, or styrene - isoprene - styrene block copolymer.

5. The thermoplastic elastomer composite material according to claim 3 or 4, characterized in that, The melt index of the polyolefin resin is 1 - 20 g / 10 min; preferably, it is any one or at least two combinations of homopolypropylene, copolymerized polypropylene, high - density polyethylene, or low - density polyethylene.

6. The thermoplastic elastomer composite material according to any one of claims 3 - 5, characterized in that, The filling oil is selected from any one or at least two combinations of aromatic oil, naphthenic oil, alkylbenzene oil, paraffin oil, coconut oil, and castor oil, preferably paraffin oil and / or naphthenic oil; and / or, the tackifying resin is selected from oligomer resins with a molecular weight below 10000, preferably any one or at least two combinations of hydrocarbon resin, rosin resin, rosin derivative resin, terpene resin, hydrogenated terpene resin, phenolic resin, petroleum resin, dicyclopentadiene resin, coumarone resin, styrene series resin, alkylphenolic resin, and xylene resin, and further preferably terpene resin and / or petroleum resin; and / or, the inorganic filler is selected from any one or at least two combinations of graphite, mica, calcium carbonate, or barium sulfate.

7. The thermoplastic elastomer composite material according to any one of claims 3 - 6, characterized in that, It also includes 0.1 - 0.5 parts of antioxidant and 0.1 - 0.5 parts of anti - aging agent; Preferably, the antioxidant is selected from hindered phenol antioxidants and / or phosphite antioxidants; Preferably, the anti - aging agent is selected from any one or at least two combinations of anti - aging agent RD, anti - aging agent MB, anti - aging agent 4010, or anti - aging agent AW.

8. The thermoplastic elastomer composite material according to claim 7, characterized in that, The hindered phenol antioxidants are selected from any one or at least two combinations of antioxidant 1010, antioxidant 1076, or antioxidant 1790; and / or, the phosphite antioxidants are selected from any one or at least two combinations of antioxidant 168, antioxidant 618, or antioxidant P - EPQ.

9. A method for preparing the thermoplastic elastomer composite material according to any one of claims 1 - 8, characterized in that, The preparation method includes: Melting and blending the formula amounts of thermoplastic elastomer, filling oil, tackifying resin, and inorganic filler, as well as optionally polyolefin resin, optionally antioxidant, and optionally anti - aging agent to obtain the thermoplastic elastomer composite.

10. Application of the thermoplastic elastomer composite material according to any one of claims 1 - 8 in the preparation of shock - absorbing and noise - reducing parts.

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