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CN-122011529-A - Wear-resistant high-elastic rubber and preparation method and application thereof

CN122011529ACN 122011529 ACN122011529 ACN 122011529ACN-122011529-A

Abstract

The application discloses wear-resistant high-elastic rubber, a preparation method and application thereof, and relates to the technical field of rubber products. A wear-resistant high-elastic rubber comprises a composite rubber matrix, EVA resin, a compatilizer, wear-resistant filler and other auxiliary agents. The composite rubber matrix comprises butadiene rubber, natural rubber and epoxidized natural rubber, the rubber with excellent wear resistance and high rebound resilience can be prepared by the technical scheme of the application, the rubber also has higher static friction coefficient and sliding friction coefficient on a wet sliding plane, is not easy to slip on the wet sliding road surface, is suitable for being used as a rubber outsole raw material to prepare soles, and meanwhile, the rubber has good tensile strength and heat aging resistance, and is favorable for ensuring that the soles made of the rubber keep excellent comprehensive performance for a long time and are not easy to damage.

Inventors

  • TANG ZHIMING

Assignees

  • 佛山市满强新材料有限公司

Dates

Publication Date
20260512
Application Date
20260302

Claims (10)

  1. 1. The wear-resistant high-elastic rubber is characterized by comprising the following raw materials in parts by mass: 100 parts of composite rubber matrix; 5-10 parts of EVA resin; 2.5-5 parts of compatilizer; 30-36 parts of wear-resistant filler; 3.5-5 parts of silane coupling agent; 0.2-0.6 part of sulfur; 1-1.4 parts of dicumyl peroxide; 2.6-4.2 parts of vulcanization accelerator; 7-11 parts of vulcanization aid; 2.5-3 parts of anti-aging agent; wherein the composite rubber matrix comprises butadiene rubber, natural rubber and epoxidized natural rubber, and the mass ratio of the butadiene rubber to the natural rubber to the epoxidized natural rubber is (50-65): (25-40): (5-10).
  2. 2. The abrasion-resistant high-elastic rubber according to claim 1, wherein the EVA resin is further subjected to sulfonation treatment before being added and mixed, and the vulcanization aid is specifically a composition of stearic acid, zinc oxide and magnesium oxide.
  3. 3. A wear-resistant high-elastic rubber according to claim 2, wherein the sulfonation treatment of EVA resin comprises the following steps: Fully drying EVA resin, heating to 150-160 ℃ to carry out open mixing on the EVA resin, adding sulfonating agent and antioxidant after the EVA resin is fully divided into rolls, continuously open mixing for 8-12min, discharging sizing material after the open mixing is finished, cooling to normal temperature, and fully crushing to obtain the EVA resin subjected to sulfonation treatment.
  4. 4. A wear-resistant high-elastic rubber according to claim 2, wherein the mass ratio of the stearic acid to the zinc oxide to the magnesium oxide is 1:3 (1-2).
  5. 5. The abrasion-resistant high-elastic rubber according to claim 1, wherein the compatilizer is any one of maleic anhydride grafted SEBS or maleic anhydride grafted EVA.
  6. 6. The wear-resistant high-elastic rubber according to claim 1, wherein the wear-resistant filler is a composition of fumed silica and aramid pulp, and the mass ratio of the fumed silica to the aramid pulp is (25-35) (1-6).
  7. 7. A wear-resistant elastomer as claimed in claim 1, wherein the vulcanization accelerator is a combination of accelerator CZ and accelerator DTDC, and the mass ratio of accelerator CZ to accelerator DTDC is (2-3): 0.6-1.2.
  8. 8. The abrasion-resistant high-elastic rubber according to claim 1, wherein the anti-aging agent is a composition of an anti-aging agent 4020, an anti-aging agent RD and an anti-aging agent MB, and the mass ratio of the anti-aging agent 4020, the anti-aging agent RD and the anti-aging agent MB is 1.5 (0.8-1): 0.2-0.5.
  9. 9. A method for preparing the wear-resistant high-elastic rubber, which is used for preparing the wear-resistant high-elastic rubber according to any one of claims 1 to 8, and is characterized by comprising the following steps: s1, mixing the composite rubber matrix, after the composite rubber matrix is fully divided into rolls, adding the EVA resin and the compatilizer, mixing uniformly, adding the vulcanization aid and the anti-aging agent, mixing uniformly, adding the wear-resistant filler, slowly adding the silane coupling agent in the mixing process, mixing uniformly, controlling the temperature in the mixing process to be not higher than 120 ℃, discharging the sizing material after the mixing is finished, and cooling to obtain a first-order sizing material; S2, fully mixing the sulfur, the dicumyl peroxide and the vulcanization accelerator in advance to obtain a vulcanization mixture, mixing the first-order rubber material, adding the same amount of the vulcanization mixture for multiple times, mixing uniformly, controlling the temperature in the mixing process to be not higher than 80 ℃, discharging the rubber material after mixing, and cooling to obtain the wear-resistant high-elastic rubber.
  10. 10. The use of a wear-resistant elastomer as claimed in any one of claims 1 to 8, as a material for shoe material rubber soles and for the production of shoe soles.

Description

Wear-resistant high-elastic rubber and preparation method and application thereof Technical Field The invention relates to the technical field of rubber products, in particular to wear-resistant high-elastic rubber and a preparation method and application thereof. Background Since the last eighties of the century, the shoe industry has developed rapidly, which has continuously driven the continual upgrading of rubber outsole performance. Since the rubber outsole is of great importance in the use of the sports shoes, the quality and the use experience of the sports shoes are directly affected by the performance of the rubber outsole, and therefore, along with the continuous expansion of the sports shoe market and the improvement of the performance requirements of consumers on the sports shoes in recent years, the development of the rubber outsole material system naturally becomes a necessary trend. In the development process of the rubber large-base material system, different technical means are adopted in order to meet the requirements of different stages. The first generation system taking emulsion polymerized styrene-butadiene rubber as a main body in the early stage meets the pavement requirement at the time by utilizing the characteristic of balanced comprehensive performance. The second generation system developed later takes butadiene rubber as a main body, the excellent wear resistance of the butadiene rubber obviously improves the wear resistance of the sole, and the tearing strength can be improved by mixing natural rubber later. Meanwhile, in order to meet the requirements of the color outsole, the reinforcing agent is gradually replaced by the traditional carbon black, especially the white carbon black modified by the special coupling agent, the reinforcing effect can reach the level of the traditional carbon black, and meanwhile, a certain anti-skid property can be added to the sole. However, since the high wear resistance of butadiene rubber is partially due to the low surface friction coefficient, the anti-wet skid performance of the sole is poor, slipping is easy to occur, a certain potential safety hazard exists, and as the sole is aged by ultraviolet rays, the hardness of the sole is increased, so that the anti-skid performance is further deteriorated, the elasticity and the wear resistance are greatly reduced, and the wear is affected and is more easily worn. Therefore, the rubber which can keep high wear resistance and high elasticity for a long time and has good wet skid resistance is developed, and has promotion significance for future development of the shoe industry. Disclosure of Invention The application provides wear-resistant high-elastic rubber, a preparation method and application thereof, and aims to ensure that the rubber for soles has excellent wear resistance and high elasticity and also has good wet skid resistance and aging resistance. In a first aspect, the application provides a wear-resistant high-elastic rubber, which adopts the following technical scheme: The wear-resistant high-elastic rubber comprises the following raw materials in parts by mass: 100 parts of composite rubber matrix; 5-10 parts of EVA resin; 2.5-5 parts of compatilizer; 30-36 parts of wear-resistant filler; 3.5-5 parts of silane coupling agent; 0.2-0.6 part of sulfur; 1-1.4 parts of dicumyl peroxide; 2.6-4.2 parts of vulcanization accelerator; 7-10 parts of vulcanization aid; 2.5-3 parts of anti-aging agent; wherein the composite rubber matrix comprises butadiene rubber, natural rubber and epoxidized natural rubber, and the mass ratio of the butadiene rubber to the natural rubber to the epoxidized natural rubber is (50-65): (25-40): (5-10). Through adopting above-mentioned technical scheme, can prepare one kind and possess excellent wearability and high resilient rubber, rubber can also have higher static friction coefficient and sliding friction coefficient when facing the wet smooth plane moreover, be difficult for taking place to skid on the wet smooth road surface, be applicable to as the raw materials preparation sole of rubber outsole, the tensile strength and the thermal aging resistance performance of the rubber that prepare are all better simultaneously, are favorable to guaranteeing to keep good comprehensive properties for a long time by the sole that this rubber prepared, and is not fragile. Optionally, the EVA resin is further sulfonated before being added and mixed, and the vulcanization aid is specifically a composition of stearic acid, zinc oxide and magnesium oxide. Optionally, the sulfonation treatment of the EVA resin includes the following steps: Fully drying EVA resin, heating to 150-160 ℃ to carry out open mixing on the EVA resin, adding sulfonating agent and antioxidant after the EVA resin is fully divided into rolls, continuously open mixing for 8-12min, discharging sizing material after the open mixing is finished, cooling to normal temperature, and fully crushing to obtain