Wear-resistant rubber for sports shoe soles and preparation method thereof
A wear-resistant rubber and shoe sole technology, applied in the field of materials, can solve the problems of easy aging and loss of elasticity of the sole material, difficult to control the thickness of the sheet, poor elasticity and weather resistance, etc., and achieves excellent oxygen resistance, excellent chemical corrosion resistance, The effect of super anti-slip and wear resistance
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Publication Date
- 2019-11-01
Smart Images
Figure 1
Abstract
Description
technical field
[0001] The invention relates to the field of materials, in particular to a wear-resistant rubber for sports shoe soles and a preparation method thereof. Background technique
[0002] Due to its special purpose, sports shoes require its sole rubber to have wear resistance, good folding resistance and weather resistance. Although the current wear-resistant rubber for sports shoe soles has certain wear resistance, there are many deficiencies, such as poor elasticity and weather resistance, and the soles of sports shoes wear out quickly during repeated bouncing and running. The material is easy to age and lose its elasticity. In addition, the current wear-resistant rubber for sports shoe soles has a large shrinkage, uneven sheeting, and difficult control of sheet thickness. In the post-vulcanization process, due to the strong air tightness and poor fluidity of the material, Due to factors such as large shrinkage and poor exhaust, the rate of defective products i...
Examples
preparation example Construction
[0030] The present invention simultaneously provides a preparation method of wear-resistant rubber for sports shoe soles, comprising the following steps:
[0031] 1) Weigh the following ingredients in parts by mass: 50-80 parts of butadiene rubber, 10-30 parts of epoxy natural rubber, 5-20 parts of hydrogenated nitrile rubber, 1-2 parts of leveling agent, 2-5 parts of silane coupling agent 20-50 parts of white carbon black, 5-15 parts of nano-alumina, 2-5 parts of zinc oxide powder, 2-5 parts of polyethylene glycol, 0.5-2 parts of zinc stearate, 0.5-2 parts of water-based tackifying resin 2-5 parts of softening oil, 1-3 parts of anti-aging agent, 0.5-1 part of paraffin;
[0032] 2) Pour all the ingredients weighed in step 1) into the internal mixer for mixing, the mixing time is 7-9 minutes, and the temperature is 120-140°C;
[0033] 3) discharging, discharging, and cooling the mixture obtained in step 2);
[0034] 4) Weigh the following components by mass parts: 1.5-2 parts...
Embodiment 2
[0041] In Example 2, the mixing time in step 2) is 7 minutes, and the temperature is 120-140°C; the mixing time in step 5) is 5 minutes, and the temperature is 50-70°C;
Embodiment 3
[0042]In Example 3, the mixing time in step 2) is 8 minutes, and the temperature is 120-140°C; the mixing time in step 5) is 4 minutes, and the temperature is 50-70°C.
[0043] The wear-resistant rubber for sports shoe soles prepared in the above-mentioned Examples 1, 2 and 3 was tested for performance, and compared with the performance of existing products at the same time, the results are shown in Table 2 below.
[0044] Table 2: The performance of embodiment 1-3 and existing wear-resistant rubber for sports shoe soles
[0045] Test items Example 1 Example 2 Example 3 Hardness (Shore A) 67 68 67 Tensile strength (MPa) 17 18 17 Elongation at break (%) 737 745 742 Right angle tear (N / cm) 72 69 70 DIN (mm 3 )
33 31 35 Density (g / cm 3 )
1.13 1.14 1.13 Folding resistance (mm) 5.1 5.2 5.2 Hydrolysis resistance conform to conform to conform to
[0046] Note: The data in Table 2 is the data...