阅读说明：本技术 一种腰果酚复合氯丁橡胶增强鞋底材料耐磨性的方法 (Method for enhancing wear resistance of shoe sole material by compounding cardanol with chloroprene rubber ) 是由 杨翠娥 于 2019-12-03 设计创作，主要内容包括：本发明公开一种腰果酚复合氯丁橡胶增强鞋底材料耐磨性的方法,包括以下步骤：(1)得到腰果酚复合氯丁橡胶产物；(2)得到开炼胶；(4)得到密炼产物；(5)得到混炼胶,然后将混炼胶进行热炼均匀后,裁切成鞋底胚片,最后将鞋底胚片在硫化机中进行硫化处理,即得成品；本发明制备的一种腰果酚复合氯丁橡胶增强鞋底材料耐磨性的方法,能够极大的改善鞋底材料的耐磨性能,增加了鞋底的使用寿命。(The invention discloses a method for enhancing the wear resistance of a sole material by using cardanol compounded chloroprene rubber, which comprises the following steps: (1) obtaining a cardanol composite chloroprene rubber product; (2) obtaining virgin rubber; (4) obtaining an internal mixing product; (5) obtaining mixed rubber, uniformly heating the mixed rubber, cutting the mixed rubber into sole blank sheets, and finally vulcanizing the sole blank sheets in a vulcanizing machine to obtain a finished product; the method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber can greatly improve the wear resistance of the sole material and prolong the service life of the sole.)

1. A method for enhancing the wear resistance of a sole material by using cardanol compounded chloroprene rubber is characterized by comprising the following steps:

(1) dissolving chloroprene rubber in toluene, heating to 110-114 ℃, stirring at the rotating speed of 500r/min for 20min, adding rosin resin accounting for 5-7% of the mass of the chloroprene rubber, continuing to keep the temperature and stir for 10min, then adding cardanol accounting for 3.1-3.6% of the mass of the chloroprene rubber under the inert atmosphere, stirring while adding, and adding twice, wherein the time interval of adding twice is 10-15min, after adding twice, adjusting the temperature to 80-85 ℃, continuing to stir and react for 2 h, naturally cooling to room temperature, performing rotary evaporation, and removing organic solvent toluene to obtain a cardanol composite chloroprene rubber product;

(2) carrying out surface chemical modification on the gamma-nano alumina particles, firstly, carrying out surface chemical modification on the gamma-nano alumina particles according to the weight ratio of 35 g: uniformly dispersing 250mL of the mixture into an ethanol solution, adding isostearic acid with the fraction of 3-5% of the ethanol solution, stirring at 55 ℃ for 40min, adjusting the temperature to 70 ℃, adding an anionic surfactant with the mass fraction of 1.5-2% of the ethanol solution, continuing stirring for 30min, performing suction filtration, washing the surface to be neutral, and performing vacuum drying to constant weight to obtain surface-modified gamma-nano aluminum oxide;

(3) adding natural rubber into an open mill for open milling treatment to obtain open milled rubber;

(4) adding the rubber starting compound, the carbon black and the cardanol composite chloroprene rubber product obtained in the step (3) into an internal mixer in a mass ratio of 80:5:6-8 in sequence for internal mixing treatment to obtain an internal mixing product;

(5) and (3) mixing the banburying product obtained in the step (4), sulfur, a vulcanization aid and a copolymer according to a mass ratio of 80:1:2:4-6, adding the mixture into a rubber mixing mill for mixing to obtain rubber mixture, then uniformly heating the rubber mixture at 70 ℃, cutting the rubber mixture into sole blank sheets, and finally vulcanizing the sole blank sheets in a vulcanizing machine to obtain a finished product.

2. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein in the step (1), the chloroprene rubber is dissolved in toluene according to a ratio of 80-100 g: the mixture was mixed at a ratio of 350 mL.

3. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the inert atmosphere in the step (1) is a nitrogen atmosphere and/or a helium atmosphere.

4. The method for enhancing the wear resistance of the shoe sole material through the cardanol composite chloroprene rubber according to claim 1, wherein the cardanol is added in two times in the step (1), wherein 60% of the total amount of the cardanol is added in the first time, and 40% of the total amount of the cardanol is added in the second time.

5. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the mass fraction of the ethanol solution in the step (2) is 55%.

6. The method for enhancing the abrasion resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the anionic surfactant in the step (2) is succinate sulfonate.

7. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the open milling treatment temperature in the step (3) is 155 ℃, and the treatment time is 25 min.

8. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the banburying treatment temperature in the step (4) is 162 ℃ and the treatment time is 12 min.

9. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the mixing temperature in the step (5) is 125 ℃ and the mixing time is 5-8 min.

10. The method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber as claimed in claim 1, wherein the vulcanization aid in the step (5) is a vulcanization accelerator M.

Technical Field

The invention belongs to the technical field of shoe product materials, and particularly relates to a method for enhancing the wear resistance of a sole material by using cardanol compounded chloroprene rubber.

Background

Along with the continuous improvement of people's standard of living, people also continuously along with improving to the requirement of clothing quality, and sole material is a very important point to the durable quality of shoes, sole material function diversification represents the quality also diversification of shoes, the quality direct relation of sole is to the life of whole shoes, therefore, the demand of the sole performance in market is increasing day by day, current sole material has partly to adopt rubber materials, can improve the wearability demand of sole material to a certain extent, however, along with the extension of shoes time of wearing and using, the wearability of rubber sole material is progressively worse, the sole is also more and more smooth because long-time wearing and tearing, and this also directly leads to the coefficient of friction of sole and ground to reduce by a wide margin, the easy phenomenon that slips easily appears takes place.

Disclosure of Invention

The invention is realized by the following technical scheme.

A method for enhancing the wear resistance of a sole material by using cardanol compounded chloroprene rubber comprises the following steps:

(1) dissolving chloroprene rubber in toluene, heating to 110-114 ℃, stirring at the rotating speed of 500r/min for 20min, adding rosin resin accounting for 5-7% of the mass of the chloroprene rubber, continuing to keep the temperature and stir for 10min, then adding cardanol accounting for 3.1-3.6% of the mass of the chloroprene rubber under the inert atmosphere, stirring while adding, and adding twice, wherein the time interval of adding twice is 10-15min, after adding twice, adjusting the temperature to 80-85 ℃, continuing to stir and react for 2 h, naturally cooling to room temperature, performing rotary evaporation, and removing organic solvent toluene to obtain a cardanol composite chloroprene rubber product;

(2) carrying out surface chemical modification on the gamma-nano alumina particles, firstly, carrying out surface chemical modification on the gamma-nano alumina particles according to the weight ratio of 35 g: uniformly dispersing 250mL of the mixture into an ethanol solution, adding isostearic acid with the fraction of 3-5% of the ethanol solution, stirring at 55 ℃ for 40min, adjusting the temperature to 70 ℃, adding an anionic surfactant with the mass fraction of 1.5-2% of the ethanol solution, continuing stirring for 30min, performing suction filtration, washing the surface to be neutral, and performing vacuum drying to constant weight to obtain surface-modified gamma-nano aluminum oxide;

(3) adding natural rubber into an open mill for open milling treatment to obtain open milled rubber;

(4) adding the rubber starting compound, the carbon black and the cardanol composite chloroprene rubber product obtained in the step (3) into an internal mixer in a mass ratio of 80:5:6-8 in sequence for internal mixing treatment to obtain an internal mixing product;

(5) and (3) mixing the banburying product obtained in the step (4), sulfur, a vulcanization aid and an ethylene-vinyl acetate copolymer according to a mass ratio of 80:1:2:4-6, adding the mixture into a rubber mixing mill for mixing to obtain rubber mixture, then uniformly heating the rubber mixture at 70 ℃, cutting the rubber mixture into sole blank sheets, and finally vulcanizing the sole blank sheets in a vulcanizing machine to obtain a finished product.

In the step (1), the chloroprene rubber is dissolved in toluene according to the weight ratio of 80-100 g: the mixture was mixed at a ratio of 350 mL.

And (2) the inert atmosphere in the step (1) is a nitrogen atmosphere and/or a helium atmosphere.

In the step (1), the cardanol is added twice, wherein 60% of the total amount of the cardanol is added for the first time, and 40% of the total amount of the cardanol is added for the second time.

The mass fraction of the ethanol solution in the step (2) is 55%.

And (3) the anionic surfactant in the step (2) is succinate sulfonate.

And (3) the open milling treatment temperature is 155 ℃, and the treatment time is 25 min.

And (4) banburying treatment at 162 ℃ for 12 min.

In the step (5), the mixing temperature is 125 ℃, and the mixing time is 5-8 min.

And (5) the vulcanization assistant in the step (5) is a vulcanization accelerator M.

According to the technical scheme, the beneficial effects of the invention are as follows:

the method for enhancing the wear resistance of the sole material by using the cardanol compounded chloroprene rubber can greatly improve the wear resistance of the sole material and prolong the service life of the sole, and the problem of poor compatibility between natural rubber and a filler can be solved by adding the ethylene-vinyl acetate copolymer, so that the dispersity of a mixture is improved; the natural rubber has higher elasticity at normal temperature, small hysteresis loss, lower heat production during multiple deformation, excellent bending resistance and flexibility, but poorer plasticity, the application can increase the plasticity to a certain extent by adding a certain amount of cardanol compounded chloroprene rubber product into the natural rubber, and simultaneously, the modified gamma-nano alumina is added, so the cardanol compounded chloroprene rubber product can be uniformly dispersed in a rubber compound system and can be mutually and tightly combined with rubber molecules through chemical bonds, the rubber molecules have low surface energy, and the surface modified gamma-nano alumina has higher surface energy, therefore, the cardan strength between the components of the composite material can be improved through the adsorption effect of the cardanol compounded chloroprene rubber product and the rubber molecules adsorbed on the surfaces of the surface modified gamma-nano alumina particles have certain activity capacity, can produce certain degree of slip on the surface modification gamma-nanometer alumina particle surface, thereby make the stress in the sole combined material redistribute, avoided stress concentration, thereby the mechanical properties of the sole material has been improved, especially the ability that the sole material resists external friction has been improved, thereby very big improvement its wear resistance, simultaneously, surface modification gamma-nanometer alumina this application can directly bear partial load, through its excellent wear resistance itself, can effectively will reduce the volume wearing and tearing volume, and rely on its better wearability than the rubber molecule, can avoid long-time wearing and tearing, the sole becomes smooth, the phenomenon that reduces the sole coefficient of friction by a wide margin takes place.

Detailed Description

The invention provides a method for enhancing the wear resistance of a sole material by using cardanol compounded chloroprene rubber, and a person skilled in the art can use the content of the cardanol compounded chloroprene rubber for reference and appropriately improve the process parameters for realization. It is expressly intended that all such similar substitutes and modifications apparent to those skilled in the art are deemed to be within the scope of the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.

A method for enhancing the wear resistance of a sole material by using cardanol compounded chloroprene rubber comprises the following steps: (1) dissolving chloroprene rubber in toluene, heating to 110-114 ℃, stirring at the rotating speed of 500r/min for 20min, adding rosin resin accounting for 5-7% of the mass of the chloroprene rubber, continuing to keep the temperature and stir for 10min, then adding cardanol accounting for 3.1-3.6% of the mass of the chloroprene rubber under the inert atmosphere, stirring while adding, and adding twice, wherein the time interval of adding twice is 10-15min, after adding twice, adjusting the temperature to 80-85 ℃, continuing to stir and react for 2 h, naturally cooling to room temperature, performing rotary evaporation, and removing organic solvent toluene to obtain a cardanol composite chloroprene rubber product;

the chloroprene rubber is a α -chloroprene high polymer, has a regular molecular structure and polar chlorine in a molecular chain, so that the crystallization speed is high, the cohesive strength is high, the adhesive force is high, the chloroprene rubber is combined with the chloroprene rubber by using rosin resin and cardanol to obtain a cardanol composite chloroprene rubber product, and the cardanol composite chloroprene rubber product can react with a vulcanizing agent by applying the cardanol composite chloroprene rubber product to a sole material, so that the gel fraction of diene rubber vulcanized rubber is slightly increased, and the crosslinking density is reduced;

(2) carrying out surface chemical modification on the gamma-nano alumina particles, firstly, carrying out surface chemical modification on the gamma-nano alumina particles according to the weight ratio of 35 g: uniformly dispersing 250mL of the mixture into an ethanol solution, adding isostearic acid with the fraction of 3-5% of the ethanol solution, stirring at 55 ℃ for 40min, adjusting the temperature to 70 ℃, adding an anionic surfactant with the mass fraction of 1.5-2% of the ethanol solution, continuing stirring for 30min, performing suction filtration, washing the surface to be neutral, and performing vacuum drying to constant weight to obtain surface-modified gamma-nano aluminum oxide;

(3) adding natural rubber into an open mill for open milling treatment to obtain open milled rubber;

the natural rubber has higher elasticity at normal temperature, small hysteresis loss, lower heat production during multiple deformation, excellent bending resistance and flexibility, but poorer plasticity, the application can increase the plasticity to a certain extent by adding a certain amount of cardanol compounded chloroprene rubber product into the natural rubber, and simultaneously, the modified gamma-nano alumina is added, so the cardanol compounded chloroprene rubber product can be uniformly dispersed in a rubber compound system and can be mutually and tightly combined with rubber molecules through chemical bonds, the rubber molecules have low surface energy, and the surface modified gamma-nano alumina has higher surface energy, therefore, the cardan strength between the components of the composite material can be improved through the adsorption effect of the cardanol compounded chloroprene rubber product and the rubber molecules adsorbed on the surfaces of the surface modified gamma-nano alumina particles have certain activity capacity, the surface-modified gamma-nano aluminum oxide particles can slide on the surfaces of the surface-modified gamma-nano aluminum oxide particles to a certain degree, so that the stress in the sole composite material is redistributed, the stress concentration is avoided, the mechanical property of the sole material is improved, particularly, the capability of the sole material for resisting external friction is improved, so that the wear resistance of the sole material is greatly improved, meanwhile, the surface-modified gamma-nano aluminum oxide particles can directly bear partial load, the volume abrasion loss can be effectively reduced through the excellent wear resistance of the surface-modified gamma-nano aluminum oxide particles, the long-time abrasion can be avoided by means of the better wear resistance of the surface-modified gamma-nano aluminum oxide particles than that of rubber molecules, the sole becomes smooth, and the friction coefficient of the sole is greatly reduced;

(4) adding the rubber starting compound, the carbon black and the cardanol composite chloroprene rubber product obtained in the step (3) into an internal mixer in a mass ratio of 80:5:6-8 in sequence for internal mixing treatment to obtain an internal mixing product;

(5) and (3) mixing the banburying product obtained in the step (4), sulfur, a vulcanization aid and an ethylene-vinyl acetate copolymer according to a mass ratio of 80:1:2:4-6, adding the mixture into a rubber mixing mill for mixing to obtain rubber mixture, then uniformly heating the rubber mixture at 70 ℃, cutting the rubber mixture into sole blank sheets, and finally vulcanizing the sole blank sheets in a flat vulcanizing machine at the vulcanization temperature of 135 ℃, the vulcanization pressure of 24MPa and the vulcanization time of 6min to obtain the finished product.

In the step (1), the chloroprene rubber is dissolved in toluene according to the weight ratio of 80-100 g: the mixture was mixed at a ratio of 350 mL.

And (2) the inert atmosphere in the step (1) is a nitrogen atmosphere and/or a helium atmosphere.

In the step (1), the cardanol is added twice, wherein 60% of the total amount of the cardanol is added for the first time, and 40% of the total amount of the cardanol is added for the second time.

The mass fraction of the ethanol solution in the step (2) is 55%.

And (3) the anionic surfactant in the step (2) is succinate sulfonate.

And (3) the open milling treatment temperature is 155 ℃, and the treatment time is 25 min.

And (4) banburying treatment at 162 ℃ for 12 min.

In the step (5), the mixing temperature is 125 ℃, and the mixing time is 5-8 min.

And (5) the vulcanization assistant in the step (5) is a vulcanization accelerator M.

For further understanding of the present application, the following describes a method for enhancing the wear resistance of the sole material by using cardanol compounded chloroprene rubber provided by the present application with reference to the following examples: