阅读说明：本技术 一种轻质耐磨塑胶鞋底材料的制备方法 (Preparation method of light wear-resistant plastic sole material ) 是由 申乾成 申辉 黄振 于 2019-11-15 设计创作，主要内容包括：本发明涉及新材料加工技术领域,公开了一种轻质耐磨塑胶鞋底材料的制备方法,通过对塑胶合成特征以及复合纳米填料性能的研究,从整体结构解决现有塑胶材质的鞋底耐磨性差的问题,将制备得到的纳米材料通过共发泡形式添加至塑胶材料中,与塑胶界面结合,提高复合材料鞋底的综合性能,制备得到的鞋底材料密度低至45-48千克/立方米,拉伸强度提高至7.3-7.6MPa,弯曲强度提高至16-18MPa,动摩擦系数为0.34-0.36；制备得到的鞋底材料为多孔发泡结构,具有耐磨减震性,纳米填料的添加,增强了鞋底的耐磨性,并使得塑胶材料内部结合力提高,主要表现在力学强度的提升,具有较高的弹性恢复能力,更加耐用,提高塑胶鞋底的使用寿命。(The invention relates to the technical field of new material processing, and discloses a preparation method of a light wear-resistant plastic sole material, which solves the problem of poor wear resistance of the sole of the existing plastic material from an integral structure through the research on the synthetic characteristics of plastic and the performance of a composite nano filler, adds the prepared nano material into the plastic material in a co-foaming manner, combines with a plastic interface, and improves the comprehensive performance of the composite material sole, wherein the density of the prepared sole material is as low as 45-48 kg/cubic meter, the tensile strength is improved to 7.3-7.6MPa, the bending strength is improved to 16-18MPa, and the dynamic friction coefficient is 0.34-0.36; the prepared sole material is of a porous foaming structure and has wear resistance and shock absorption, the addition of the nano filler enhances the wear resistance of the sole, the internal bonding force of the plastic material is improved, the mechanical strength is mainly improved, the elastic recovery capability is higher, the durability is higher, and the service life of the plastic sole is prolonged.)

1. A preparation method of a light wear-resistant plastic sole material is characterized in that the prepared composite nano filler is added into a plastic material in a co-foaming manner to prepare the plastic sole material; the method specifically comprises the following steps:

the weight portions are as follows: 30-35 parts of butadiene, 28-30 parts of acrylonitrile, 11-13 parts of methacrylamide, 2.0-2.4 parts of tert-butyl methacrylate, 0.3-0.4 part of magnesium methacrylate, 0.4-0.6 part of azobisisobutyronitrile, 0.7-0.9 part of nitrogen-dimethyl formamide and 3.5-4.0 parts of azodicarbonamide are placed in a reaction kettle, stirred and mixed for 1-2 hours at 500 revolutions per minute of 400-plus-material, then heated to 55-60 ℃, subjected to sealing reaction for 36-40 hours, added into the obtained prepolymerization reaction liquid to obtain the composite nano filler, wherein the addition amount of the composite nano filler accounts for 0.022-0.024 mass percent of the prepolymerization reaction liquid, heated to 60-70 ℃, subjected to ultrasonic stirring for 40-45 minutes, transferred into a foaming tool, placed in an electrothermal constant-temperature blast drying box for foaming, the foaming temperature is controlled at 160-plus-material, foaming time is 20-24 minutes, cooling to 80-90 ℃, placing in a mold, heating to 120-130 ℃, pressurizing, heat-preserving and heat-treating for 70-80 minutes under the pressure of 2.0-2.2MPa, and naturally cooling to room temperature.

2. The method for preparing the lightweight wear-resistant plastic sole material according to claim 1, wherein the method for preparing the composite nano filler comprises the following steps:

(1) weighing 2.1-2.2 mmol of tetraethoxysilane, placing the tetraethoxysilane in a beaker, adding 75-80 ml of ammonia water solution into the beaker, magnetically stirring for 60-70 minutes, transferring the mixture into a constant-temperature water bath, heating to 65-70 ℃, dropwise adding 1.0-1.5 ml of ethyl acetate, uniformly stirring, transferring the mixed solution into a closed constant-temperature box, setting the temperature to be 60-65 ℃, preserving heat, aging for 48-50 hours, cooling to 30-35 ℃ to obtain a gel-state product, transferring the gel-state product into a crucible, delivering the crucible into a muffle furnace for calcining, heating to 550-;

(2) mixing the obtained calcined product with nano molybdenum disulfide according to the proportion of 7-8:1, grinding for 15-20 minutes, placing the obtained powder in a beaker, adding anhydrous ethanol with the volume of 4-5 times that of the beaker, simultaneously dropwise adding a silane coupling agent with the mass fraction of 40-45% of the mass of the powder, ultrasonically dispersing for 30-40 minutes, transferring the dispersion into a ball milling tank, carrying out ball milling at the rotation speed of 300-400 r/min for 40-45 minutes, carrying out centrifugal separation after the ball milling is finished, placing the obtained solid product in a constant-temperature forced air drying box for drying at the drying temperature of 60-70 ℃ for 12-15 hours, and obtaining the composite nano filler.

3. The method for preparing a lightweight wear-resistant plastic sole material according to claim 1, wherein the ultrasonic power is 1000W-1200W during the preparation of the plastic sole material.

4. The method for preparing a lightweight, wear-resistant plastic shoe sole material according to claim 1, wherein the particle size of the prepared composite nanofiller is 25-30 nm.

5. The method for preparing a lightweight wear-resistant plastic sole material as claimed in claim 2, wherein the molar concentration of the ammonia solution in the step (1) is 1.4-1.6 mol/l.

6. The method for preparing a lightweight wear-resistant plastic sole material according to claim 2, wherein the silane coupling agent in the step (2) is KH-560.

Technical Field

The invention belongs to the technical field of new material processing, and particularly relates to a preparation method of a light wear-resistant plastic sole material.

Background

Definition of the plastics: the product is a solid and molten liquid in the manufacturing process, so that the product can be mechanically heated to melt, pressurized to flow and cooled to solidify to form various shapes, and the huge and variable material group is called plastic. With the rapid development of the plastic industry and the continuous improvement of the plastic performance, plastic parts are widely used. Rather than being limited to replacement of industrial metal parts, and is a daily necessity of plastic materials which are found everywhere in daily life.

With the upgrading of industrial technologies, plastic products are no longer on low-end performance requirements. The higher quality plastic material can meet the requirements of people on high strength, light weight and high stability. However, the quality of the product cannot be effectively improved due to the limitation of the inherent properties of the rubber material. The plastic shoe has the advantages of obvious embodiment in the field of shoe making, poor air permeability, thickness and poor wear resistance of plastic, and seriously influences the comfort and the service life of the plastic shoe. Therefore, the use of plastics as sole processing materials requires performance improvement to improve the comfort and the service life, which is of great significance to the superior performance and environmental protection of plastics in the field of shoe making.

Disclosure of Invention

The invention aims to solve the existing problems and provides a preparation method of a light wear-resistant plastic sole material, which has high elastic recovery capability and is more durable and prolongs the service life of a plastic sole.

The invention is realized by the following technical scheme:

a preparation method of light wear-resistant plastic sole material has the preferred scheme that the prepared composite nano filler is added into the plastic material in a co-foaming manner and combined with a plastic interface, so that the comprehensive performance of the composite sole is improved;

first, preparing a composite nanofiller: weighing 2.1-2.2 mmol of tetraethoxysilane, placing the tetraethoxysilane in a beaker, adding 75-80 ml of ammonia water solution with the molar concentration of 1.4-1.6 mol/L into the beaker, magnetically stirring for 60-70 minutes, transferring the beaker to a constant-temperature water bath kettle, heating to 65-70 ℃, dropwise adding 1.0-1.5 ml of ethyl acetate, uniformly stirring, transferring the mixed solution to a closed constant-temperature box, setting the temperature to be 60-65 ℃, preserving heat, aging for 48-50 hours, cooling to 30-35 ℃ to obtain a gel-state product, transferring the gel-state product to a crucible, feeding the crucible into a muffle furnace for calcining, heating to 550-600 ℃, preserving heat, calcining for 1.5-2.0 hours, naturally cooling to room temperature along with the furnace to obtain a calcined product, mixing the calcined product with nano molybdenum disulfide according to the ratio of 7-8:1, grinding for 15-20 minutes to obtain powder, placing the powder in the beaker, adding anhydrous ethanol with the volume of 4-5 times, simultaneously dropwise adding a silane coupling agent with the mass fraction of 40-45% of the powder mass, ultrasonically dispersing for 30-40 minutes, transferring the dispersion into a ball milling tank, carrying out ball milling at the rotation speed of 300-400 r/min for 40-45 minutes, carrying out centrifugal separation after the ball milling is finished, and drying the obtained solid product in a constant-temperature air-blast drying box at the drying temperature of 60-70 ℃ for 12-15 hours to obtain the composite nano filler. The silane coupling agent is KH-560; the grain size of the prepared composite nano filler is between 25 and 30 nanometers. The prepared nano filler has high purity, small particle size, good dispersibility in plastic, high bonding strength with the plastic and excellent reinforcing performance.

The preparation of the plastic sole material comprises the following steps:

the weight portions are as follows: 30-35 parts of butadiene, 28-30 parts of acrylonitrile, 11-13 parts of methacrylamide, 2.0-2.4 parts of tert-butyl methacrylate, 0.3-0.4 part of magnesium methacrylate, 0.4-0.6 part of azobisisobutyronitrile, 0.7-0.9 part of nitrogen-dimethyl formamide and 3.5-4.0 parts of azodicarbonamide are placed in a reaction kettle, stirred and mixed for 1-2 hours at 500 revolutions per minute of 400 plus materials, then heated to 55-60 ℃, sealed for reaction for 36-40 hours, the prepared nano filler is added into the obtained prepolymerization reaction liquid, the addition amount accounts for 0.022-0.024 mass of the prepolymerization reaction liquid, the temperature is raised to 60-70 ℃, ultrasonic stirring is carried out for 40-45 minutes, the ultrasonic power is 1000W-1200W, the mixture is transferred into a foaming tool and placed in an electrothermal blowing constant temperature drying box for foaming, the foaming temperature is controlled at 150-.

The plastic sole material prepared by the invention is of a porous foaming structure and has wear resistance and shock absorption, the addition of the nano filler enhances the wear resistance of the sole, and the internal bonding force of the plastic material is improved, mainly reflected in the improvement of mechanical strength, the plastic sole material has higher elastic recovery capability and is more durable, and the service life of the plastic sole is prolonged.

Compared with the prior art, the invention has the following advantages: in order to solve the problems of poor wear resistance and short service life of a plastic sole, the invention provides a preparation method of a light wear-resistant plastic sole material, which solves the problem of poor wear resistance of the sole made of the existing plastic material from an integral structure through the research on synthetic characteristics of plastic and the performance of a composite nano filler, adds the prepared nano material into the plastic material in a co-foaming manner, combines with a plastic interface, and improves the comprehensive performance of the composite material sole, wherein the density of the prepared sole material is as low as 45-48 kg/cubic meter, the tensile strength is improved to 7.3-7.6MPa, the bending strength is improved to 16-18MPa, and the dynamic friction coefficient is 0.34-0.36; the prepared sole material is of a porous foaming structure and has wear resistance and shock absorption, the addition of the nano filler enhances the wear resistance of the sole, and the internal bonding force of the plastic material is improved, which is mainly reflected in the improvement of mechanical strength, has higher elastic recovery capability, is more durable, and prolongs the service life of the plastic sole; the invention can obviously improve the wear-resisting property of the plastic sole, solves the problems that the prior plastic modification method is complicated and the wear-resisting property can not be effectively improved, has good application prospect and obviously improves economic benefit and social benefit. The invention effectively solves the problems of poor wear resistance and short service life of the plastic sole, has the characteristics of low cost, low energy consumption and high performance, greatly prolongs the service life of the plastic shoe, is beneficial to the balanced improvement of the performance of each aspect of the plastic product, can realize the practical significance of promoting the development of the plastic shoe manufacturing industry and improving the market competitiveness, has higher value for the application research of plastic materials, obviously promotes the rapid development and the sustainable development of resources in the plastic industrial field, and is a technical scheme which is extremely worthy of popularization and use.

Detailed Description

In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described with reference to specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the present invention and are not used for limiting the technical solutions provided by the present invention.