Anti-slippery rubber sole material and preparation method thereof

Abstract

The invention relates to an anti-slippery rubber sole material and a preparation method thereof, and belongs to the technical field of shoe materials, the rubber sole material comprises the following raw materials: a base material main material, a base material auxiliary material, an activator, a compatibilizer, an anti-slip wear-resistant material, zinc oxide, stearic acid, white carbon black, an anti-aging agent, paraffin oil, sulfur and a vulcanizing agent; wherein the main materials of the base material comprise HNBR, IR and BIIR, the auxiliary materials of the base material comprise AEM and POE, the activator comprises a B-450 efficient activator, the compatibilizer comprises POE-g-MAH, and the antiskid wear-resistant material comprises modified zinc oxide whiskers, aluminum oxide and C5 petroleum resin. According to the invention, HNBR, IR and BIIR are taken as main materials, AEM and POE are taken as auxiliary materials, and the activator and the compatibilizer are selected, so that the rubber sole material finished product has excellent oil resistance and tensile strength. In addition, due to the added anti-skid wear-resistant material, the prepared finished product has excellent anti-skid property.

Description

Technical Field

[0001] The present invention belongs to the technical field of shoe materials, and specifically, relates to an oil-proof and anti-slip rubber sole material and a preparation method thereof. Background Art

[0002] The sole material is an important part of footwear products. Rubber materials are widely used in sole materials due to their good softness, elasticity, shock absorption and other advantages. The performance of the sole is crucial. In various work and life scenarios, common rubber soles have frequent problems. For example, in environments with a lot of oil and moisture such as food processing plant workshops and kitchens, common rubber soles are easily corroded by oil due to their lack of good oil resistance and anti-slip properties, and will deform in a short time. This not only greatly reduces the performance of the sole, but also greatly increases the risk of wearers slipping. In addition, even in some non-oily environments, existing rubber soles are difficult to fully meet people's requirements for their tensile strength. Rubber soles with high tensile strength can prevent the sole from cracking at the bending part and ensure long-term use. Therefore, it is of great practical significance to develop rubber sole materials with multiple properties. Summary of the Invention

[0003] The purpose of the present invention is to provide an oil-proof and anti-slip rubber sole material and a preparation method thereof, which solves the problem of poor oil and anti-slip performance in the existing sole material technology.

[0004] The purpose of the present invention can be achieved by the following technical solutions: An oil-proof and anti-slip rubber sole material, comprising the following raw materials: base material main component, base material auxiliary component, activator, compatibilizer, anti-slip and wear-resistant material, zinc oxide, stearic acid, white carbon black, antioxidant, paraffin oil, sulfur and vulcanizing agent; Among them, the base material main component includes HNBR, IR and BIIR, the base material auxiliary component includes AEM and POE, the activator includes B-450 high-efficiency activator, the compatibilizer includes POE-g-MAH, and the anti-slip and wear-resistant material includes modified zinc oxide whiskers, alumina and C5 petroleum resin.

[0005] As a preferred technical solution of the present invention, the antioxidant includes at least one of antioxidant 4010NA, antioxidant RD, and antioxidant 445; the vulcanizing agent includes vulcanizing agent DCP.

[0006] As a preferred technical solution of the present invention, the HNBR is 10-13 parts by weight, the IR is 40-42 parts by weight, the BIIR is 33-35 parts by weight, the AEM is 6-8 parts by weight, the POE is 5-8 parts by weight, the activator is 6-8 parts by weight, the compatibilizer is 10-12 parts by weight, the modified zinc oxide whisker is 6-10 parts by weight, the alumina is 2-2.5 parts by weight, the petroleum resin is 5-8 parts by weight, the zinc oxide is 5-6 parts by weight, the stearic acid is 2-2.5 parts by weight, the white carbon black is 20-25 parts by weight, the antioxidant is 1.5-2 parts by weight, the paraffin oil is 10-12 parts by weight, the sulfur is 1-1.5 parts by weight, and the vulcanizing agent is 2.5-3 parts by weight.

[0007] Further, the HNBR, its product name: hydrogenated nitrile rubber, has relatively excellent mechanical properties and chemical stability. It has cyano groups on the molecular chain, and the cyano groups are polar groups, having certain oil resistance; the IR, its product name: isoprene rubber, has high tensile strength and tear strength, and its water resistance and electrical insulation are superior to natural rubber; the BIIR, its product name: bromobutyl rubber, is an isobutene-isoprene copolymer elastomer containing active bromine. In addition to maintaining the characteristics of ordinary butyl rubber such as weather resistance, ozone resistance, and chemical resistance, it also has high physical strength, excellent damping properties, low permeability, and co-vulcanization performance; the AEM, its product name: ethylene acrylic ester rubber, is a product of terpolymerization of ethylene, acrylic ester, and carboxylic acid, having good aging resistance and oil resistance, and also having good elasticity, tear resistance, abrasion resistance, and low compression set. Compared with traditional acrylic ester rubber, ethylene-acrylic ester rubber has broadened the application scope in the blending field; the POE, its product name: polyolefin elastomer, in its molecular structure, the soft chain curl structure of octene and the crystalline ethylene chain serve as crosslinking points, which can play a role of connection and buffering between various components, making it have both excellent toughness and good processability; the main component of the B-450 high-efficiency activator is a complex of 2-tert-butyl-p-methylresorcinol polysulfide, which has high activity, high activation efficiency, and significant energy saving and consumption reduction; the POE-g-MAH, its product name: maleic anhydride grafted POE, with a grafting rate of 1.2%; the modified raw material of the modified zinc oxide whisker is zinc oxide whisker, and the aforementioned zinc oxide whisker is a tetrapod-shaped zinc oxide whisker with a diameter of 0.5-5 μm and a length of 10-50 μm. The special three-dimensional tetrapod-shaped structure of the tetrapod-shaped zinc oxide whisker makes it have a completely isotropic modification effect on the material. Therefore, the tetrapod-shaped zinc oxide whisker can greatly improve the anti-slip performance of the material; the alumina, with a particle size of 100 nm, can effectively absorb impact energy and prevent the expansion of microcracks, so it can effectively improve the toughness of the material and avoid brittle fracture failure. In addition, alumina can also effectively resist frequent external wear; the petroleum resin includes C5 petroleum resin.

[0008] A preparation method of an oil-proof and non-slip rubber sole material comprises the following steps: S1. Prepare modified zinc oxide whiskers and mixture A; S2. Mix mixture A, IR, BIIR, POE, compatibilizer and C5 petroleum resin evenly and carry out temperature-controlled internal mixing. Then, add zinc oxide, stearic acid, white carbon black, antioxidant, modified zinc oxide whiskers and alumina in sequence and carry out temperature-controlled refining. Next, add paraffin oil and sulfur in sequence and continue temperature-controlled refining, and then discharge the material. Finally, add vulcanizing agent and mix evenly. Carry out thin pass and cut the sheet into the shape of a sole, put it into a rubber shoe mold for vulcanization, and then let it stand for shaping to obtain the finished rubber sole material.

[0009] As a preferred technical solution of the present invention, step S1 specifically includes: Clean and dry zinc oxide whiskers, add the dried zinc oxide whiskers and coupling agent into absolute ethanol in sequence and carry out ultrasonic dispersion, wash and dry to obtain modified zinc oxide whiskers; Soften the activator in a boiling water bath, mix the softened activator, HNBR and AEM evenly and carry out temperature-controlled heating, and then cool to obtain mixture A.

[0010] Furthermore, the mass ratio of the absolute ethanol, the dried zinc oxide whiskers and the coupling agent is 32-35:1:11-12; The time of the ultrasonic dispersion is 25-30 min, and the washing is carried out with absolute ethanol.

[0011] Furthermore, the coupling agent includes any one of silane coupling agents KH550, KH560 and KH570.

[0012] Furthermore, the coupling agent is preferably KH550.

[0013] Furthermore, the softening time is 20-30 min, the temperature of the temperature-controlled heating is 98-100 °C, and the time is 5-7 min; The cooling is to cool to room temperature.

[0014] As a preferred technical solution of the present invention, the temperature of the temperature-controlled internal mixing in step S2 is 100-110 °C, and the time is 3-5 min; The temperature of the temperature-controlled refining is 110-120 °C, and the time is 2-3 min; The vulcanization conditions are 145-150 °C and 260 s; The standing time is 10-12 h.

[0015] The beneficial effects of the present invention: (1) The present invention uses HNBR, IR, and BIIR as the main materials, and AEM and POE as the auxiliary materials. Innovatively, four kinds of rubbers and elastomers are compounded and used as the base material of the system with a reasonable ratio. On the premise of balancing the comprehensive cost of raw materials, the advantages of each raw material can be fully exerted. HNBR provides oil resistance, IR provides tensile strength and tear strength, BIIR simultaneously provides strength and damping, AEM improves the overall performance of the compounded material, and POE improves the processing performance. In this way, the advantages and disadvantages of each raw material in the system can complement each other and work synergistically, so that the finished rubber sole material has both excellent oil resistance and tensile strength.

[0016] (2) Although the base material composed of different kinds of rubbers and elastomers can complement each other in performance, the lack of compatibility between the base materials will instead cause the final performance of the finished product to fail to reach the expected effect. Therefore, to solve this problem, the present invention selects an activator to improve the surface activity of HNBR and AEM, thereby enhancing their compatibility with the polar part of the compatibilizer. At the same time, the other part of the compatibilizer can enhance the binding force of the remaining base materials to a certain extent. Therefore, the finished product obtained by blending has good compatibility and can further improve the oil resistance and tensile strength of the system. In addition, the present invention adds the activator before the compatibilizer, which can make the compatibilizer play a more effective role. The two complement each other and are indispensable, and have a positive effect on improving the performance of the finished product.

[0017] (3) The present invention uses modified zinc oxide whiskers, alumina, and C5 petroleum resin as the anti-slip and wear-resistant materials of the system. Modified zinc oxide whiskers provide anti-slip performance, alumina resists external wear, and C5 petroleum resin increases the friction between the chain segments and fillers in the system and enhances the hysteresis friction. So that the finished product obtained thereby has excellent anti-slip and wear resistance.

[0018] (4) The present invention innovatively constructs a set of base materials and takes into account the ratio and compatibility of each raw material in the base materials. At the same time, anti-slip and wear-resistant materials are added. The finished product obtained thereby can have both high tensile strength and oil and slip resistance. Using this raw material as the sole material can effectively increase the anti-oil and slip effect of the sole and improve the safety of shoes when worn. Detailed Embodiments

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0020] The HNBR used in the examples, comparative examples and test examples of the present invention has the product name: hydrogenated nitrile rubber, grade: 2057, brand: LANXESS, purchased from Shanghai Huaxiang High Polymer Materials Co., Ltd.; The IR used has the product name: isoprene rubber, grade: IR80, brand: Xinjiang Tianli, purchased from Guangzhou Housheng New Materials Co., Ltd.; The BIIR used has the product name: chlorobutyl rubber, grade: X_Butyl BIIR BBX2, brand: ARLANXEO, purchased from Dongguan Caihua Plastic Technology Co., Ltd.; The AEM used has the product name: ethylene acrylic ester rubber, grade: S270762, brand: DuPont of the United States, purchased from Shanghai Xingyun International Trade Co., Ltd.; The POE used has the product name: polyolefin elastomer, grade: ENGAGE 8450, brand: Dow, purchased from Suzhou Shunwangjia International Trade Co., Ltd.; The B-450 high-efficiency activator used has the grade: 450, purchased from Anhui Jinma Rubber Auxiliaries Co., Ltd. The main component of the B-450 high-efficiency activator is a complex of 2-tert-butyl-p-methylresorcinol polysulfide, which has high activity, high activation efficiency and significant energy saving and consumption reduction; The POE-g-MAH used has the product name: maleic anhydride grafted POE, grafting rate 1.2%, brand: Dow, purchased from Dongguan Jingke High Polymers Co., Ltd.; The zinc oxide whiskers used are four-needle zinc oxide whiskers with a diameter of 0.5 - 5 μm and a length of 10 - 50 μm, grade: FF-JY510, brand: Jiayou, purchased from Xuancheng Jingrui New Materials Co., Ltd.; The alumina used has a particle size of 100 nm, grade: VK-L100, purchased from Xuancheng Jingrui New Materials Co., Ltd.; The petroleum resin used includes C5 petroleum resin, purchased from Jinan Xinquan Chemical Technology Co., Ltd.; The zinc oxide, stearic acid, silica, antioxidant, paraffin oil, sulfur and vulcanizing agent used are all common raw materials in the art and are all commercially available; The above will not be elaborated hereinafter.

[0021] Example 1

[0022] An oil-proof and anti-slip rubber sole material, comprising the following raw materials in parts by weight: 10 parts by weight of HNBR, 40 parts by weight of IR, 34 parts by weight of BIIR, 8 parts by weight of AEM, 8 parts by weight of POE, 6 parts by weight of B-450 high-efficiency activator, 10 parts by weight of POE-g-MAH, 6 parts by weight of modified zinc oxide whiskers, 2 parts by weight of alumina, 8 parts by weight of C5 petroleum resin, 6 parts by weight of zinc oxide, 2 parts by weight of stearic acid, 20 parts by weight of white carbon black, 2 parts by weight of antioxidant RD, 11 parts by weight of paraffin oil, 1 part by weight of sulfur, and 2.5 parts by weight of curing agent DCP; The preparation method of the oil-proof and anti-slip rubber sole material comprises the following steps: S1. Clean and dry the zinc oxide whiskers, add the dried zinc oxide whiskers and silane coupling agent KH550 to anhydrous ethanol in sequence, ultrasonically disperse for 25 min, wash with anhydrous ethanol and dry to obtain modified zinc oxide whiskers; Soften the B-450 high-efficiency activator in a boiling water bath for 30 min, mix the softened activator, HNBR and AEM evenly and control the temperature at 98 °C and heat for 6 min, then cool to room temperature to obtain mixture A; The mass ratio of the anhydrous ethanol, the dried zinc oxide whiskers and the silane coupling agent KH550 is 32:1:11.5; S2. Mix mixture A, IR, BIIR, POE, POE-g-MAH and C5 petroleum resin evenly and control the temperature at 100 °C for internal mixer kneading for 4 min, add zinc oxide, stearic acid, white carbon black, antioxidant RD, modified zinc oxide whiskers and alumina in sequence and control the temperature at 110 °C for refining for 3 min, then add paraffin oil and sulfur in sequence and continue to control the temperature at 110 °C for refining for 2.5 min and then discharge, finally add curing agent DCP and mix evenly, thin pass and sheet, cut the sheet into the shape of a sole, put it into a rubber shoe mold, vulcanize at 150 °C for 260 s and then stand still for 10 h to form, thus obtaining the finished rubber sole material.

[0023] Example 2

[0024] An oil-proof and anti-slip rubber sole material, comprising the following raw materials in parts by weight: 13 parts by weight of HNBR, 41 parts by weight of IR, 33 parts by weight of BIIR, 6 parts by weight of AEM, 5 parts by weight of POE, 8 parts by weight of B-450 high-efficiency activator, 12 parts by weight of POE-g-MAH, 8 parts by weight of modified zinc oxide whiskers, 2.5 parts by weight of alumina, 5 parts by weight of C5 petroleum resin, 5.5 parts by weight of zinc oxide, 2.2 parts by weight of stearic acid, 22.5 parts by weight of white carbon black, 1.5 parts by weight of antioxidant 4010NA, 10 parts by weight of paraffin oil, 1.5 parts by weight of sulfur, and 3 parts by weight of curing agent DCP; The preparation method of the oil-proof and anti-slip rubber sole material comprises the following steps: S1. Clean and dry the zinc oxide whiskers. Sequentially add the dried zinc oxide whiskers and silane coupling agent KH550 to absolute ethanol and ultrasonically disperse for 27.5 min. Wash with absolute ethanol and dry to obtain modified zinc oxide whiskers. Soften the B-450 high-efficiency activator in a boiling water bath for 20 min. Mix the softened activator, HNBR, and AEM evenly and heat at 100 °C for 5 min. Cool to room temperature to obtain mixture A. The mass ratio of the absolute ethanol, the dried zinc oxide whiskers, and the silane coupling agent KH550 is 33.5:1:12. S2. Mix mixture A, IR, BIIR, POE, POE-g-MAH, and C5 petroleum resin evenly and carry out internal mixing at 105 °C for 3 min. Sequentially add zinc oxide, stearic acid, white carbon black, antioxidant 4010NA, modified zinc oxide whiskers, and alumina and carry out refining at 115 °C for 2 min. Then sequentially add paraffin oil and sulfur and continue to carry out refining at 115 °C for 3 min and then discharge. Finally, add vulcanizing agent DCP and mix evenly. Pass through a thin sheet and cut the sheet into the shape of a shoe sole, put it into a rubber shoe mold, and vulcanize at 145 °C for 260 s and then let it stand for 12 h to form, thus obtaining the finished product of the rubber shoe sole material.

[0025] Example 3

[0026] An oil-proof rubber shoe sole material, comprising the following raw materials in parts by weight: 11.5 parts by weight of HNBR, 42 parts by weight of IR, 35 parts by weight of BIIR, 7 parts by weight of AEM, 6.5 parts by weight of POE, 7 parts by weight of B-450 high-efficiency activator, 11 parts by weight of POE-g-MAH, 10 parts by weight of modified zinc oxide whiskers, 2.2 parts by weight of alumina, 6.5 parts by weight of C5 petroleum resin, 5 parts by weight of zinc oxide, 2.5 parts by weight of stearic acid, 25 parts by weight of white carbon black, 1.8 parts by weight of antioxidant 445, 12 parts by weight of paraffin oil, 1.3 parts by weight of sulfur, and 2.7 parts by weight of vulcanizing agent DCP; The preparation method of the oil-proof rubber shoe sole material comprises the following steps: S1. Clean and dry the zinc oxide whiskers. Sequentially add the dried zinc oxide whiskers and silane coupling agent KH550 to absolute ethanol and ultrasonically disperse for 30 min. Wash with absolute ethanol and dry to obtain modified zinc oxide whiskers. Soften the B-450 high-efficiency activator in a boiling water bath for 25 min. Mix the softened activator, HNBR, and AEM evenly and heat at 99 °C for 7 min. Cool to room temperature to obtain mixture A. The mass ratio of the absolute ethanol, the dried zinc oxide whiskers, and the silane coupling agent KH550 is 35:1:11. S2. Mix the blended material A, IR, BIIR, POE, POE-g-MAH, and C5 petroleum resin evenly, control the temperature at 110°C, and conduct internal mixing for 5 minutes. Then, add zinc oxide, stearic acid, silica, antioxidant 445, modified zinc oxide whiskers, and alumina in sequence, control the temperature at 120°C, and refine for 2.5 minutes. Next, add paraffin oil and sulfur in sequence, continue to refine at 120°C for 2 minutes, and then discharge the material. Finally, add vulcanizing agent DCP, mix evenly, pass through a calender to form sheets, cut the sheets into the shape of shoe soles, place them in a rubber shoe mold, vulcanize at 150°C for 260 seconds, and then let them stand for 11 hours to form, thus obtaining the finished product of the rubber shoe sole material.

[0027] Comparative Example 1 Compared with Example 1, the difference is that in Comparative Example 1, HNBR is not added, that is, HNBR is 0 parts by weight, IR is 42.5 parts by weight, BIIR is 36.5 parts by weight, AEM is 10.5 parts by weight, POE is 10.5 parts by weight, and the rest of the operation steps and parameters remain unchanged.

[0028] Comparative Example 2 Compared with Example 1, the difference is that in Comparative Example 2, IR is not added, that is, IR is 0 parts by weight, HNBR is 20 parts by weight, BIIR is 44 parts by weight, AEM is 18 parts by weight, POE is 18 parts by weight, and the rest of the operation steps and parameters remain unchanged.

[0029] Comparative Example 3 Compared with Example 1, the difference is that in Comparative Example 3, BIIR is not added, that is, BIIR is 0 parts by weight, HNBR is 18.5 parts by weight, IR is 48.5 parts by weight, AEM is 16.5 parts by weight, POE is 16.5 parts by weight, and the rest of the operation steps and parameters remain unchanged.

[0030] Comparative Example 4 Compared with Example 1, the difference is that in Comparative Example 4, AEM is not added, that is, AEM is 0 parts by weight, HNBR is 12 parts by weight, IR is 42 parts by weight, BIIR is 36 parts by weight, POE is 10 parts by weight, and the rest of the operation steps and parameters remain unchanged.

[0031] Comparative Example 5 Compared with Example 1, the difference is that in Comparative Example 5, POE is not added, that is, POE is 0 parts by weight, HNBR is 12 parts by weight, IR is 42 parts by weight, BIIR is 36 parts by weight, AEM is 10 parts by weight, and the rest of the operation steps and parameters remain unchanged.

[0032] Comparative Example 6 Compared with Example 1, the difference is that in Comparative Example 6, B-450 high-efficiency activator is not added, and the rest of the operation steps and parameters remain unchanged.

[0033] Comparative Example 7 Compared with Example 1, the difference is that in Comparative Example 7, POE-g-MAH is not added, and the rest of the operation steps and parameters remain unchanged.

[0034] Comparative Example 8 Compared with Example 1, the difference is that in Comparative Example 8, B-450 high-efficiency activator is not premixed with HNBR and AEM. The specific preparation steps are as follows: S1. Clean and dry zinc oxide whiskers, add the dried zinc oxide whiskers and silane coupling agent KH550 to absolute ethanol in sequence, ultrasonically disperse for 25 min, wash with absolute ethanol and dry to obtain modified zinc oxide whiskers; soften the B-450 high-efficiency activator in a boiling water bath for 30 min and cool to room temperature to obtain the softened activator; the mass ratio of absolute ethanol, dried zinc oxide whiskers and silane coupling agent KH550 is 32:1:11.5; S2. Mix HNBR, AEM, IR, BIIR, POE, POE-g-MAH and C5 petroleum resin evenly, control the temperature at 100 °C and knead for 4 min. Add the softened activator, zinc oxide, stearic acid, white carbon black, antioxidant RD, modified zinc oxide whiskers and alumina in sequence, control the temperature at 110 °C and refine for 3 min. Then add paraffin oil and sulfur in sequence, continue to control the temperature at 110 °C and refine for 2.5 min, and then discharge. Finally, add vulcanizing agent DCP, mix evenly, thin pass and sheet, and vulcanize on a flat vulcanizer at 150 °C, 10 MPa × 260 s. After vulcanization, let it stand for 10 h and then cut to obtain the finished rubber sole material; The rest of the operation steps and parameters remain unchanged.

[0035] Test Example 1 (1) Oil resistance: According to ISO 20345-2011, the oil resistance of the finished rubber sole materials prepared in Examples 1-3 and Comparative Examples 1-8 was tested, and the results are shown in Table 1; (2) Tensile strength: According to GB / T528-2009, the finished rubber sole materials prepared in Examples 1-3 and Comparative Examples 1-8 were tested for tensile strength using an electronic universal testing machine at a test speed of 500 mm / min, and the results are shown in Table 1.

[0036] Table 1 Oil resistance performance (%) Tensile strength (MPa) Example 1 8.7 22.92 Example 2 8.6 21.56 Example 3 8.6 22.13 Comparative Example 1 6.7 15.26 Comparative Example 2 6.9 13.69 Comparative Example 3 6.3 14.55 Comparative Example 4 7.5 16.61 Comparative Example 5 7.2 15.93 Comparative Example 6 6.8 14.22 Comparative Example 7 7.1 14.90 Comparative Example 8 7.4 15.84 As can be seen from Table 1, the finished rubber sole materials prepared by the present invention have both excellent oil resistance and tensile strength.

[0037] Comparative Example 9 Compared with Example 1, the difference is that in Comparative Example 9, modified zinc oxide whiskers are not added, and alumina and C5 petroleum resin with half the weight of the modified zinc oxide whiskers are used for replacement respectively, and the rest of the operation steps and parameters remain unchanged.

[0038] Comparative Example 10 Compared with Example 1, the difference is that in Comparative Example 10, alumina is not added, and it is replaced with modified zinc oxide whiskers and C5 petroleum resin, each being half the weight of alumina, and the rest of the operation steps and parameters remain unchanged.

[0039] Comparative Example 11 Compared with Example 1, the difference is that in Comparative Example 11, C5 petroleum resin is not added, and it is replaced with modified zinc oxide whiskers and alumina, each being half the weight of C5 petroleum resin, and the rest of the operation steps and parameters remain unchanged.

[0040] Test Example 2 Coefficient of friction: Tested according to 5.3.5.3 in BS EN ISO 20345: 2011 (90% glycerol aqueous solution is dropped on the steel plate), the coefficient of friction of the finished rubber sole materials prepared in Examples 1 - 3 and Comparative Examples 9 - 11 was tested, and the results are shown in Table 2; Table 2 Coefficient of friction (heel) Coefficient of friction (smooth) Example 1 0.47 0.51 Example 2 0.46 0.50 Example 3 0.46 0.51 Comparative Example 9 0.31 0.36 Comparative Example 10 0.34 0.38 Comparative Example 11 0.27 0.31 It can be seen from Table 2 that the finished rubber sole material prepared by the present invention has a relatively large coefficient of friction and excellent anti - skid performance.

[0041] In the description of the specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above - mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0042] The above content is only an example and explanation of the concept of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the specific embodiments described or use similar ways to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined by this claim book, they should all belong to the protection scope of the present invention.

Claims

1. An oil-proof rubber sole material, characterized in that: The raw materials include: base material, base material auxiliary material, activator, extender, anti-skid and wear-resistant material, zinc oxide, stearic acid, white carbon black, antioxidant, paraffin oil, sulfur and vulcanizing agent; The main materials of the base material include HNBR, IR and BIIR, the auxiliary materials of the base material include AEM and POE, the activator includes B-450 high-efficiency activator, the compatibilizer includes POE-g-MAH, and the anti-skid and wear-resistant materials include modified zinc oxide whisker, aluminum oxide and C5 petroleum resin; The HNBR is 10-13 parts by weight, the IR is 40-42 parts by weight, the BIIR is 33-35 parts by weight, the AEM is 6-8 parts by weight, the POE is 5-8 parts by weight, the activator is 6-8 parts by weight, the compatibilizer is 10-12 parts by weight, the modified zinc oxide whisker is 6-10 parts by weight, the aluminum oxide is 2-2.5 parts by weight, the petroleum resin is 5-8 parts by weight, the zinc oxide is 5-6 parts by weight, the stearic acid is 2-2.5 parts by weight, the white carbon black is 20-25 parts by weight, the antioxidant is 1.5-2 parts by weight, the paraffin oil is 10-12 parts by weight, the sulfur is 1-1.5 parts by weight, and the vulcanizing agent is 2.5-3 parts by weight.

2. The oil-resistant rubber sole material according to claim 1, characterized in that: The antioxidant includes at least one of antioxidant 4010NA, antioxidant RD, and antioxidant 445; and the vulcanizing agent includes vulcanizing agent DCP.

3. A method for preparing the oil-resistant rubber sole material according to any one of claims 1 to 2, characterized in that: The steps include: S1, preparing modified zinc oxide whiskers and mixed material A; S2. Mix the mixed material A, IR, BIIR, POE, compatibilizer and C5 petroleum resin evenly and knead under controlled temperature. Add zinc oxide, stearic acid, white carbon black, antioxidant, modified zinc oxide whisker and aluminum oxide in sequence and refine under controlled temperature. Then add paraffin oil and sulfur in sequence and continue to refine under controlled temperature before discharging. Finally, add vulcanizing agent and mix evenly. Thinly slice and cut the sheet into the shape of soles, put it into a rubber shoe mold for vulcanization and let it stand for molding to obtain a finished rubber sole material.

4. The method for preparing the oil-resistant rubber sole material according to claim 3, characterized in that: Step S1 specifically includes: The zinc oxide whisker is cleaned and dried, and the dried zinc oxide whisker and the coupling agent are added to anhydrous ethanol in sequence for ultrasonic dispersion, washing and drying to obtain modified zinc oxide whisker; the activator is softened in a boiling water bath, and the softened activator, HNBR and AEM are mixed uniformly, heated under temperature control, and cooled to obtain a mixture A.

5. The method for preparing the oil-resistant rubber sole material according to claim 4, characterized in that: The mass ratio of the anhydrous ethanol, the dried zinc oxide whisker and the coupling agent is 32-35:1:11-12.

6. The method for preparing the oil-resistant rubber sole material according to claim 4, characterized in that: The coupling agent includes any one of silane coupling agents KH550, KH560, and KH570.

7. The method for preparing the oil-resistant rubber sole material according to claim 4, characterized in that: The softening time is 20-30 minutes, the temperature of the temperature-controlled heating is 98-100° C., and the time is 5-7 minutes; and the cooling is cooling to room temperature.

8. The method for preparing the oil-resistant rubber sole material according to claim 3, characterized in that: The temperature of the temperature-controlled refining in step S2 is 100-110°C, and the time is 3-5 minutes; the temperature of the temperature-controlled refining is 110-120°C, and the time is 2-3 minutes.

9. The method for preparing the oil-resistant rubber sole material according to claim 3, characterized in that: The vulcanization conditions in step S2 are 145-150° C. and 260 seconds; and the standing time is 10-12 hours.