Mixture for shock absorption and aging resistance of shock-absorbing material and application of mixture

Abstract

The invention relates to the technical field of shock-absorbing materials, and particularly discloses a shock-absorbing and anti-aging mixture for a shock-absorbing material and application of the shock-absorbing and anti-aging mixture, raw materials comprise SEBS, naphthenic oil, EVA, silicone oil and a compatilizer, the shock-absorbing material is produced by adding the mixture during production, and the produced product can have the effect of keeping good shock-absorbing performance for a long time; the shock-absorbing sole material applied to shoe materials can keep good shock-absorbing performance for a long time, shock-absorbing attenuation caused by time is reduced, and consumers can have better experience.

Description

Technical Field

[0001] The invention relates to the technical field of shock-absorbing materials. Background Art

[0002] In the field of new shoe materials, with the introduction of the shock-absorbing PG value indicator and the breakthrough of new materials in the shock-absorbing PG value, it has attracted much attention in the industry. The shock-absorbing PG value represents the ratio of the maximum acceleration of the shock absorption of the human foot when the sole touches the ground to the acceleration of gravity. Therefore, in sports shoes, the smaller the PG value, the greater the ability of the material to absorb impact force, the better the shock-absorbing performance, and the better the shock-absorbing protection effect on the joints and bones of the human body during exercise. Therefore, this has also become a performance parameter that sports-loving consumers pay attention to.

[0003] As we all know, the various properties of materials will usually decay over time. Similarly, shoe materials will also experience this in many properties. After the PG value indicator for shock absorption was proposed, the problem of shock absorption decay was noticed. How to reduce the shock absorption decay caused by time and maintain good shock absorption performance for a long time so that consumers can have a better experience has also become the goal that technical personnel in this field are committed to research and development and improvement. In view of this, this case came into being. Summary of the invention

[0004] The purpose of the present invention is to provide a mixture for shock-absorbing and anti-aging of shock-absorbing materials and its application. The shock-absorbing material is produced by adding the mixture, so that the produced product can maintain good shock-absorbing performance for a long time.

[0005] To achieve the above object, the technical solution of the present invention is: a mixture for shock absorbing and anti-aging of shock absorbing materials, the raw materials including SEBS (hydrogenated styrene butadiene block copolymer), cyclohexane oil, EVA, silicone oil and compatibilizer;

[0006] Alternatively, the raw materials include SEBS (hydrogenated styrene butadiene block copolymer), naphthenic oil, EVA and a compatibilizer.

[0007] The SEBS accounts for 60%-70% of the total amount of each component, the naphthenic oil accounts for 10%-15% of the total amount of each component, the EVA accounts for 10%-13% of the total amount of each component, the silicone oil accounts for 5%-8% of the total amount of each component, and the compatibilizer accounts for 2%-5% of the total amount of each component;

[0008] Alternatively, the SEBS accounts for 60%-70% of the total amount of each component, the cyclohexane oil accounts for 10%-18% of the total amount of each component, the EVA accounts for 10%-17% of the total amount of each component, and the compatibilizer accounts for 2%-5% of the total amount of each component.

[0009] The SEBS preferably has a styrene content of 30%, and / or the naphthenic oil preferably has a viscosity of 50%.

[0010] The above-mentioned mixture for shock-absorbing and anti-aging shock-absorbing materials is applied to the production and addition of shock-absorbing sole materials in shoe materials.

[0011] The invention discloses an application of a mixture for shock-absorbing and anti-aging shock-absorbing materials, which is firstly made into granules through a mixing and extruding granulation process, and then applied to the production and addition of shock-absorbing sole materials.

[0012] The addition amount of the shock-absorbing and anti-aging mixture used in the shock-absorbing sole material is 5%-15% of the total amount of the shock-absorbing sole material.

[0013] The amount of the shock-absorbing and anti-aging mixture used in the shock-absorbing sole material is 10% of the total amount of the shock-absorbing sole material.

[0014] By adopting the above technical scheme, the beneficial effect of the present invention is as follows: the structure of SEBS (hydrogenated styrene butadiene block copolymer) in the above mixture of the present invention is a linear triblock copolymer with polystyrene as the terminal segment and ethylene-butene copolymer obtained by hydrogenating polybutadiene as the middle elastic block. Due to its special structure, high-viscosity cycloalkane oil and silicone oil are added to increase the damping coefficient of the entire system, so that good shock absorption performance can be obtained. At the same time, because the hydrogenated styrene butadiene copolymer does not have unsaturated double bonds, its performance stability is good, and the performance is stable as it changes over time. Therefore, by adding the mixture during the production of shock-absorbing materials, the products produced can have the effect of maintaining good shock absorption performance for a long time. The application of shock-absorbing materials in the soles can maintain good shock absorption performance for a long time, reduce the shock absorption attenuation caused by time, and allow consumers to have a better experience. DETAILED DESCRIPTION

[0015] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0016] The embodiment of the present invention discloses a mixture for shock-absorbing and anti-aging of shock-absorbing materials, wherein the raw materials include SEBS (hydrogenated styrene butadiene block copolymer), cyclopentane oil, EVA (ethylene-vinyl acetate copolymer) and a compatibilizer. When used, the above materials can be mixed by mixing, and then extruded and granulated by a granulator to obtain the shock-absorbing and anti-aging mixture product of the present invention, which is then used in the production and addition of shock-absorbing materials. This method can avoid the component materials in the mixture from being too dispersed and reacting with the component materials of the shock-absorbing material during the production and addition of the shock-absorbing material, thereby affecting the physical properties of the mixture of the present invention. The SEBS described in this embodiment preferably uses SEBS with a styrene content of 30%, and the cyclopentane oil preferably uses cyclopentane oil with a viscosity of 50%, which is more conducive to the production of the mixture to achieve the better effect of the present invention. The structure of SEBS (hydrogenated styrene butadiene block copolymer) in the mixture is a linear triblock copolymer with polystyrene as the terminal segment and ethylene-butene copolymer obtained by hydrogenating polybutadiene as the middle elastic block. Due to its special structure, high-viscosity cyclopentane oil and silicone oil are added, which can increase the damping coefficient of the entire system in application production, so that the product can obtain good shock absorption performance. At the same time, because the hydrogenated styrene butadiene copolymer does not have unsaturated double bonds, the shock absorption performance of the product is stable and can maintain the stability of performance over time. In addition, the cyclopentane oil is mainly composed of saturated cyclic carbon chains. This structure makes the intermolecular interaction force weaker during the production of the mixture and the addition of the sole material, which helps to improve the activity of the polymer chain, thereby reducing the crystallinity and crystallization rate of the polymer, so as to achieve good shock absorption and anti-attenuation effects, so as to achieve the shock absorption and anti-attenuation effects of the mixture in the shock absorption material. In addition, silicone oil materials can also be added to the above-mentioned component materials of the present invention, which can play the role of high temperature resistance and anti-oxidation in the mixing. At the same time, these effects are also beneficial in the production of shock-absorbing materials. They can improve the smoothness and wear resistance of the mixture particles and the appearance of the shock-absorbing material products, and improve the appearance effect. Of course, the addition can be selected according to the needs of use. The above-mentioned components of the mixture of the present invention are currently not disclosed in the market. The mixture is a mixture with new functional uses. The following is an explanation of the production and addition of shock-absorbing sole materials used in footwear materials, and the component ratio of the mixture disclosed in the present invention is further described in combination with the test trial production data.

[0017] The following are the formulas of three common shock-absorbing shoe materials on the market: The first component of the shock-absorbing shoe material formula includes EVA7470, EVA33J6, POE8150, OBC9107, butyl bromide 2255, stearic acid, zinc oxide, zinc stearate, wear-resistant agent 108P, odorless adhesive BIBP, and foaming agent AC6000; The second component of the shock-absorbing shoe material formula includes EVA7470, EVA33J6, POE8150, OBC9107, butyl bromide 2255, stearic acid, zinc oxide, zinc stearate, wear-resistant agent 108P, odorless adhesive BIBP, and foaming agent AC6000. 107. Japan's Asahi Kasei shock-absorbing material 609, stearic acid, zinc oxide, zinc stearate, wear-resistant agent 108P, odorless adhesive BIBP, and foaming agent AC6000; the three components of the shock-absorbing shoe material formula include EVA7470, EVA33J6, POE8150, OBC9107, Japan's Asahi Kasei shock-absorbing material 1605, stearic acid, zinc oxide, zinc stearate, wear-resistant agent 108P, odorless adhesive BIBP, and foaming agent AC6000.

[0018] The difference between the above three formulas is that butyl bromide 2255, Japanese Asahi Kasei shock-absorbing material 609 and Japanese Asahi Kasei shock-absorbing material 1605 are added to achieve the shock-absorbing effect. These three are the three common shock-absorbing additives added to shock-absorbing shoe materials. Therefore, the shock-absorbing shoe materials produced by containing these three materials are tested for shock-absorbing attenuation, and the shock-absorbing shoe materials produced by containing these three materials and adding the shock-absorbing material of the present invention are tested for shock-absorbing attenuation. The test results are as follows:

[0019]

[0020]

[0021] It can be seen from the above table that the shock-absorbing material containing three commonly added shock-absorbing additives has a shock-absorbing attenuation period of about 33 days and an attenuation value of about 0.8, while the shock-absorbing material containing three commonly added shock-absorbing additives and added with the mixture for shock-absorbing and anti-attenuation of shock-absorbing materials of the present invention has an obvious decrease in attenuation period, tends to be stable at about 26 days, and the attenuation value after adding has also decreased by nearly half. It can be seen that the mixture of the present invention has the effect of shortening the shock-absorbing attenuation period and reducing the attenuation value of the shock-absorbing shoe material containing the above three commonly added shock-absorbing additives. By comparing the shock-absorbing attenuation period and the attenuation value, it can be seen that the shock-absorbing and anti-attenuation effect is outstanding and obviously effective. In theory, the mixture of the present invention can also achieve the anti-attenuation effect of shock-absorbing materials on other shock-absorbing additives.

[0022] After the trial production test, the mixture of shock-absorbing and anti-aging in this embodiment can achieve the above-mentioned ideal shock-absorbing and anti-aging effect in the shock-absorbing material in the following ratio: the SEBS accounts for 60%-70% of the total amount of each component, the cyclohexane oil accounts for 10%-15% of the total amount of each component, the EVA accounts for 10%-13% of the total amount of each component, the silicone oil accounts for 5%-8% of the total amount of each component, and the compatibilizer accounts for 2%-5% of the total amount of each component. The ratio of the ideal shock-absorbing and anti-aging effect without adding silicone oil is: the SEBS accounts for 60%-70% of the total amount of each component, the cyclohexane oil accounts for 10%-18% of the total amount of each component, the EVA accounts for 10%-17% of the total amount of each component, and the compatibilizer accounts for 2%-5% of the total amount of each component. The above-mentioned components of the mixture of the present invention are currently not disclosed in the market. Among them, the proportion of SEBS used is also different from the existing conventional proportion. The proportion used in this embodiment is more conducive to achieving the better state of the effect of the present invention.

[0023] The following are the test results of the shock absorption attenuation cycle and attenuation value test using the above three shock absorption material formulas and adding the above mixtures of different proportions of the present invention:

[0024]

[0025]

[0026] From the test results of the above two tables, it can be seen that the three shock-absorbing material formulas all show that in the mixture of the present invention, with the increase of the addition amount of SEBS and cyclohexane oil and the decrease of the addition amount of EVA, the shortening of the attenuation period and the reduction of the attenuation value are inversely proportional, that is, the larger the amount, the more obvious the tendency of shortening the attenuation period and reducing the attenuation value. The above third ratio has already achieved a relatively ideal test result. In the trial production test, it was found that the shock-absorbing material with an amount greater than the third ratio began to show a slight change in the shortening of the attenuation period and the reduction of the attenuation value after testing, that is, the change was not obvious. Therefore, there is no need to add more to cause material waste. It can be seen that the ratio range value provided in the above embodiment of the present invention is a ratio that achieves a relatively ideal shock-absorbing and anti-attenuation effect.

[0027]

[0028] The shock absorption of most materials currently on the market will continue to decay over time. It can be seen from the above table that the decay time of existing shock-absorbing materials is maintained at about thirty-two days, and the decay value is about 0.6. By adding the mixture of the present invention, this decay value can be appropriately reduced, and the decay time can be reduced, so that the entire decay cycle is reduced from thirty-two days to twenty-five days. The addition amount of 5%-15% of the total amount of shock-absorbing sole material has a significant effect of shortening the decay cycle and reducing the attenuation value, especially when the addition amount of the mixture of the present invention is 10%, the test results are better, and it is found in the trial production test that the value changes slightly after continuing to add more.

[0029] The above embodiments do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A mixture for shock absorbing and anti-aging of shock absorbing materials, characterized by: Raw materials include SEBS, naphthenic oil, EVA, silicone oil and compatibilizer; Alternatively, the raw materials include SEBS (hydrogenated styrene butadiene block copolymer), naphthenic oil, EVA and a compatibilizer.

2. A mixture for shock absorbing and anti-aging of shock absorbing materials as claimed in claim 1, characterized in that: The SEBS accounts for 60%-70% of the total amount of each component, the cyclohexane oil accounts for 10%-15% of the total amount of each component, the EVA accounts for 10%-13% of the total amount of each component, the silicone oil accounts for 5%-8% of the total amount of each component, and the compatibilizer accounts for 2%-5% of the total amount of each component.

3. A mixture for shock absorbing and anti-aging of shock absorbing materials as claimed in claim 1 or 2, characterized in that: The SEBS preferably has a styrene content of 30%, and / or the naphthenic oil preferably has a viscosity of 50%. Alternatively, the SEBS accounts for 60%-70% of the total amount of each component, the cyclohexane oil accounts for 10%-18% of the total amount of each component, the EVA accounts for 10%-17% of the total amount of each component, and the compatibilizer accounts for 2%-5% of the total amount of each component. The SEBS preferably has a styrene content of 30%, and / or the naphthenic oil preferably has a viscosity of 50%.

4. The use of a mixture for shock-absorbing and anti-aging of shock-absorbing materials as claimed in claim 1, 2 or 3, characterized in that: Used in the production and addition of shock-absorbing sole materials in shoes.

5. The use of a mixture for shock-absorbing and anti-aging of shock-absorbing materials as claimed in claim 4, characterized in that: It is first made into granules through a mixing, extrusion and granulation process, and then used in the production and addition of shock-absorbing sole materials.

6. The use of a mixture for shock-absorbing and anti-aging of shock-absorbing materials as claimed in claim 4 or 5, characterized in that: The addition amount of the shock-absorbing and anti-aging mixture used in the shock-absorbing sole material is 5%-15% of the total amount of the shock-absorbing sole material.

7. The use of a mixture for shock-absorbing and anti-aging of shock-absorbing materials as claimed in claim 6, characterized in that: The amount of the shock-absorbing and anti-aging mixture used in the shock-absorbing sole material is 10% of the total amount of the shock-absorbing sole material.

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