阅读说明：本技术 一种止滑拖鞋发泡材料及其制备方法 (Anti-slip slipper foaming material and preparation method thereof ) 是由 蔡海洪 于 2020-04-08 设计创作，主要内容包括：本发明公开了一种止滑拖鞋发泡材料及其制备方法,所述止滑拖鞋发泡材料包括以下重量份的原料：天然橡胶20～30份、丁苯橡胶35～50份、顺丁橡胶40～55份、高耐磨炭黑8～15份、聚丁烯弹性体6～8份、防滑剂5～12份、短纤维5～10份、氧化锌5～10份、硬脂酸锌0.7～5份、硬脂酸1～5份、交联剂1～4份、膨胀剂2～10份和发泡剂0.5～5份。本发明的止滑拖鞋发泡材料通过精选原料组成,并优化各原料含量,选择了适当的配比,既充分发挥各自的优点,又相互补充,相互促进,制得的止滑拖鞋发泡材料具有优异的防滑性能,且缓震性能和抗拉伸强度均得到提升。(The invention discloses a slip-resistant slipper foaming material and a preparation method thereof, wherein the slip-resistant slipper foaming material comprises the following raw materials in parts by weight: 20-30 parts of natural rubber, 35-50 parts of styrene butadiene rubber, 40-55 parts of butadiene rubber, 8-15 parts of high wear-resistant carbon black, 6-8 parts of polybutylene elastomer, 5-12 parts of an anti-slip agent, 5-10 parts of short fibers, 5-10 parts of zinc oxide, 0.7-5 parts of zinc stearate, 1-5 parts of stearic acid, 1-4 parts of a crosslinking agent, 2-10 parts of an expanding agent and 0.5-5 parts of a foaming agent. The anti-slip slipper foaming material disclosed by the invention is prepared by selecting raw materials, optimizing the content of each raw material and selecting a proper proportion, so that the advantages of the raw materials are fully exerted, the raw materials complement each other and promote each other, and the prepared anti-slip slipper foaming material has excellent anti-slip performance, and the cushioning performance and the tensile strength are improved.)

1. The anti-slip slipper foaming material is characterized by comprising the following raw materials in parts by weight: 20-30 parts of natural rubber, 35-50 parts of styrene butadiene rubber, 40-55 parts of butadiene rubber, 8-15 parts of high wear-resistant carbon black, 6-8 parts of polybutylene elastomer, 5-12 parts of an anti-slip agent, 5-10 parts of short fibers, 5-10 parts of zinc oxide, 0.7-5 parts of zinc stearate, 1-5 parts of stearic acid, 1-4 parts of a crosslinking agent, 2-10 parts of an expanding agent and 0.5-5 parts of a foaming agent.

2. The non-slip slipper foaming material of claim 1, wherein the slipper foaming material comprises the following raw materials in parts by weight: 25 parts of natural rubber, 40 parts of styrene-butadiene rubber, 45 parts of butadiene rubber, 10 parts of high-wear-resistance carbon black, 6.5 parts of polybutylene elastomer, 8 parts of anti-slip agent, 7.5 parts of short fiber, 8 parts of zinc oxide, 3.5 parts of zinc stearate, 2.5 parts of stearic acid, 3 parts of cross-linking agent, 5 parts of expanding agent and 4 parts of foaming agent.

3. The foam material of claim 1, wherein the cross-linking agent is selected from one or more of dicumyl peroxide, ethylene glycol dimethacrylate and trimethylolpropane trimethacrylate.

4. The foam material for anti-slip slippers as claimed in claim 1, wherein said expanding agent is alunite or calcium oxide.

5. The anti-slip slipper foaming material of claim 1, wherein the anti-slip agent is a mixture of epoxy resin, hydrogenated resin and Jinhu butyronitrile in a weight ratio of 3:1: 5.

6. The anti-slip slipper foam material of claim 1, wherein the short fibers are carbon-pentosan fiber copolymer.

7. The anti-slip slipper foam material of claim 1, wherein the foaming agent is an AC foaming agent.

8. A method for preparing the anti-slip slipper foaming material as defined in any one of claims 1 to 7, comprising the following steps:

1) Weighing the following components in parts by weight: natural rubber, styrene butadiene rubber, high wear-resistant carbon black, polybutylene elastomer, an anti-slip agent, short fiber, zinc oxide, zinc stearate, stearic acid, a crosslinking agent, an expanding agent and a foaming agent;

2) Except for a cross-linking agent, an expanding agent and a foaming agent, the raw material components are poured into an internal mixer for mixing, and the first stirring is carried out when the temperature reaches 100-105 ℃; performing secondary material turning when the temperature reaches 110-115 ℃, and continuously mixing for 5-8 min;

3) Continuously heating, carrying out third material turning when the temperature reaches 120-125 ℃, and simultaneously adding a cross-linking agent into the internal mixer for continuous mixing for 4-6 min;

4) Continuously heating, adding the expanding agent and the foaming agent into an internal mixer when the temperature reaches 130-135 ℃, and fully and uniformly mixing for 8-10 min to obtain a mixed material;

5) And pouring the obtained mixed material into a granulating machine set for granulation, foaming the granules, and performing mould pressing foaming or injection foaming to obtain the slipper foaming material.

9. The preparation method of the anti-slip slipper foaming material as claimed in claim 8, wherein the natural rubber is masticated at 120-130 ℃ for 10-15 min, discharged, and the masticated natural rubber is stored at room temperature for more than 48h and then is mixed with other raw material components in an internal mixer.

Technical Field

The invention relates to the technical field of shoe product processing, in particular to a slip-resistant slipper foaming material and a preparation method thereof.

Background

The slippers are closer to the life of people along with the improvement of the life quality of people, the indoor slippers are generally divided into cotton slippers, open-top slippers, bathroom slippers, weight-reducing slippers, body-building slippers, floor-wiping slippers, disposable slippers (hotel slippers) and the like, and whatever the indoor slippers are mainly used in rooms as well as convenient, sanitary, warm-keeping and comfortable characteristics, so that the indoor slippers become an indispensable part in the life of people gradually.

The slippers in the current market, considering the problems of cost and process, the sole and the vamp are integrally formed. The slippers with the structure have the advantages that the anti-skidding effect is not good, if water or oil is stained on the soles and the slippers walk on the surfaces of the ceramic tiles, the sliding phenomenon can also occur, and serious people can cause the people to slide to damage the bodies of the people.

In addition, natural rubber has the advantages of good elasticity, excellent mechanical strength, excellent tear resistance and electrical insulation, good wear resistance and drought resistance, convenient processing, easy adhesion of other materials and the like, is superior to most synthetic rubbers in comprehensive performance, has wider application prospect, and has become a hotspot in research on natural rubber in recent years.

However, the currently used slipper foaming materials still have the following problems:

1. The anti-skid property is poor, and the human body is easy to be damaged;

2. The wear resistance is poor, and the service life is short;

3. After foaming, the tensile strength is greatly reduced, the elongation at break is reduced, the mechanical property is poor, and the comprehensive use performance is poor.

Disclosure of Invention

Based on the above situation, the invention aims to provide a slip-resistant slipper foaming material and a preparation method thereof, which can effectively solve the above problems.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

The anti-slip slipper foaming material comprises the following raw materials in parts by weight: 20-30 parts of natural rubber, 35-50 parts of styrene butadiene rubber, 40-55 parts of butadiene rubber, 8-15 parts of high wear-resistant carbon black, 6-8 parts of polybutylene elastomer, 5-12 parts of an anti-slip agent, 5-10 parts of short fibers, 5-10 parts of zinc oxide, 0.7-5 parts of zinc stearate, 1-5 parts of stearic acid, 1-4 parts of a crosslinking agent, 2-10 parts of an expanding agent and 0.5-5 parts of a foaming agent.

Preferably, the slipper foaming material comprises the following raw materials in parts by weight: 25 parts of natural rubber, 40 parts of styrene-butadiene rubber, 45 parts of butadiene rubber, 10 parts of high-wear-resistance carbon black, 6.5 parts of polybutylene elastomer, 8 parts of anti-slip agent, 7.5 parts of short fiber, 8 parts of zinc oxide, 3.5 parts of zinc stearate, 2.5 parts of stearic acid, 3 parts of cross-linking agent, 5 parts of expanding agent and 4 parts of foaming agent.

Preferably, the cross-linking agent is selected from one or more of dicumyl peroxide, ethylene glycol dimethacrylate and trimethylolpropane trimethacrylate.

Preferably, the expanding agent is alunite or calcium oxide.

Preferably, the anti-slip agent is a mixture of epoxy resin, hydrogenated resin and Jinhu butyronitrile according to a weight ratio of 3:1: 5.

Preferably, the short fibers are carbon-pentosan fiber copolymers.

Preferably, the blowing agent is an AC blowing agent.

The invention also provides a preparation method of the anti-slip slipper foaming material, which comprises the following steps:

1) Weighing the following components in parts by weight: natural rubber, styrene butadiene rubber, high wear-resistant carbon black, polybutylene elastomer, an anti-slip agent, short fiber, zinc oxide, zinc stearate, stearic acid, a crosslinking agent, an expanding agent and a foaming agent;

2) Except for a cross-linking agent, an expanding agent and a foaming agent, the raw material components are poured into an internal mixer for mixing, and the first stirring is carried out when the temperature reaches 100-105 ℃; performing secondary material turning when the temperature reaches 110-115 ℃, and continuously mixing for 5-8 min;

3) Continuously heating, carrying out third material turning when the temperature reaches 120-125 ℃, and simultaneously adding a cross-linking agent into the internal mixer for continuous mixing for 4-6 min;

4) Continuously heating, adding the expanding agent and the foaming agent into an internal mixer when the temperature reaches 130-135 ℃, and fully and uniformly mixing for 8-10 min to obtain a mixed material;

5) And pouring the obtained mixed material into a granulating machine set for granulation, foaming the granules, and performing mould pressing foaming or injection foaming to obtain the slipper foaming material.

Preferably, the natural rubber is masticated for 10-15 min at the temperature of 120-130 ℃, discharged, and stored at room temperature for more than 48h after the mastication is finished, and then is poured into an internal mixer with other raw material components for mixing.

Compared with the prior art, the invention has the following advantages and beneficial effects:

The slipper foaming material disclosed by the invention is prepared by selecting raw materials, optimizing the content of each raw material, and selecting natural rubber, styrene butadiene rubber, high-wear-resistant carbon black, polybutylene elastomer, an anti-slip agent, short fibers, zinc oxide, zinc stearate, stearic acid, a cross-linking agent, an expanding agent and a foaming agent in a proper proportion, so that the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, the use types of the raw materials are reduced, the raw material cost is optimized, the occurrence probability of the problems of uneven mixing and blending caused by various types of the raw materials is reduced, the quality stability of the product is improved, the prepared anti-slip slipper foaming material has excellent anti-slip performance, and the cushioning performance and the tensile strength are improved.

The slipper foaming material disclosed by the invention is added with the natural rubber, the styrene-butadiene rubber and the butadiene rubber in a proper proportion, and the proportions of the natural rubber, the styrene-butadiene rubber and the butadiene rubber are reasonably prepared, so that the slipper foaming material is used as a main raw material of the slipper foaming material and is matched with other components to play a good synergistic effect, under the coordination of other additives, the crack resistance of the styrene-butadiene rubber caused by the influence of a benzene side group is overcome, the defects of poor viscosity, poor processability, poor tear resistance, poor puncture resistance and poor skid resistance of the butadiene rubber caused by the flexibility of a molecular chain are overcome, and the anti-skid and wear-resistant performances of the slipper foaming material disclosed by the invention are improved through three-rubber synergistic modification, so that the slipper foaming material disclosed by the invention is good in tensile strength and high in mechanical property and durability, and the elongation at break is increased.

The anti-slip agent and the short fibers are added into the slipper foaming material in a proper proportion, the proportion of the anti-slip agent to the short fibers is reasonably prepared, and the anti-slip agent and the short fibers are matched with other components, so that a good synergistic effect is achieved, the anti-slip effect of the slipper foaming material can be improved, and the condition that a user slips and is hurt to the body of the user due to sliding is avoided.

The high wear-resistant carbon black is added into the raw materials of the foaming material for the anti-slip slippers in a proper proportion, so that the high wear-resistant carbon black is uniformly dispersed in the raw material system of the foaming material for the anti-slip slippers, and is matched with other components to play a good synergistic role, so that the foaming material for the anti-slip slippers has excellent wear resistance.

The polybutylene elastomer is added into the raw materials of the foaming material for the anti-slip slippers in a proper proportion, so that the foaming material for the anti-slip slippers is uniformly dispersed in a raw material system and is matched with other components to play a good synergistic effect, and the foaming material for the anti-slip slippers has the advantages of high elasticity, folding resistance, crease resistance, wear resistance and the like; meanwhile, the cushioning performance of the anti-slip slipper foaming material is improved to a certain degree.

The zinc stearate with a proper proportion is added into the raw materials of the anti-slip slipper foaming material, so that the anti-slip slipper foaming material is uniformly dispersed in a raw material system and is matched with zinc oxide to play a good synergistic effect, the anti-slip slipper foaming material has the rubber vulcanization activity effect, and the anti-reversion problem of the slipper foaming material can be improved. The introduction of zinc stearate improves the compatibility between zinc oxide and rubber molecules and improves the processability of rubber materials to a certain extent.

The preparation method has the advantages of simple process, simple and convenient operation, labor and equipment cost saving, capability of ensuring the firmness of the slippers and avoiding the phenomenon that the traditional slippers are easy to degum, thereby prolonging the service life of the slippers.

Detailed Description

In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.

The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.