Modified EPR rubber foam material and preparation method thereof
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A rubber foaming material and modification technology, which is applied in the field of materials to achieve the effect of improving process flow and material formula
Pending Publication Date: 2020-10-13
ZHEJIANG SEMIR GARMENT CO LTD +1
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[0003] In order to solve the problems existing in the current traditional rubber foaming materials, the present invention proposes a modified EPR rubber foaming material and its preparation method to replace the traditional rubber foaming materials, so that it can fully meet the stability performance and appearance without deformation. Improve comfort, rebound, shock absorption, wear resistance, and anti-slip, and the production process has the characteristics of environmental protection and high efficiency, further meeting the needs of consumers and social needs
Method used
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Embodiment 1
[0057] 1. Mix the raw materials into the mixer
[0058] Step 1: Weigh 30kg of ethylene-vinyl acetate copolymer, 8kg of EPDM rubber, 8kg of natural rubber, 12kg of ethylene-α-olefin copolymer, 2kg of accelerator, 1.5kg of anti-wear agent, 8kg of talcum powder, and 2.2 kg of titanium dioxide kg, 1 kg of stearic acid, and 0.9 kg of zinc oxide are mixed, and added into a banbury mixer for stirring and banburying;
[0059] Step 2: After 25 minutes, when the temperature rises to 75°C, turn over the material for the first time, and clean the dust in the trough;
[0060] Step 3: Turn over the material for the second time when the temperature rises to 80°C after 6 minutes, and clean the dust in the hopper;
[0061] Step 4: Turn the material for the third time when the temperature rises to 85°C after 5 minutes, and clean the dust in the material trough;
[0062] Step 5: Turn the material for the fourth time when the temperature rises to 90°C after 4 minutes, clean the dust in the hopper...
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Abstract
The invention discloses a modified EPR rubber foam material and a preparation method thereof. The formula of the modified EPR rubber foam material comprises 25-35 parts of ethylene-vinyl acetate copolymer; 6-10 parts of ethylene propylene diene monomer; 6-10 parts of natural rubber; 10-15 parts of an ethylene-alpha-olefin copolymer; 1-3 parts of an accelerant; 1-3 parts of an anti-wear agent; 6-10parts of talcum powder; 1-3 parts of titanium dioxide; 0.5-1 part of stearic acid; 0.5-1 part of zinc oxide; 0.3-0.8 part of a bridging agent; and 0.5-1 part of a foaming agent. A finished product isobtained through the steps of banburying, material slicing, granulating, packaging and the like. The improved foaming material has four characteristics, namely, ultralight weight, cold resistance, slip resistance and wear resistance, has five functions, namely rebounding, shock absorption, supporting, various textures and applicability to hand sewing, and can better adapt to the requirements of the market and consumers for high-tech and high-physical-property functional soles.
Description
technical field [0001] The invention relates to a modified EPR rubber foam material and a preparation method thereof, belonging to the field of materials. Background technique [0002] Shoes are a necessary product in people's life. The components of shoes are generally divided into soles, uppers, and accessories. The soles are divided into RB rubber outsoles, EPR foam bottoms, EVA midsoles, TPR outsoles, TPU outsoles, and TR outsoles. etc.; the materials for making soles are divided into RB rubber, EPR, EVA, TPR, TPU, TR and so on. At present, the materials for making soles in the shoe material industry are common such as EVA foam materials, and relatively new ones such as EPR foam materials. Among them, although the EVA foam shoe material is relatively light, comfortable and durable, it also has the defects of lack of stability, easy deformation of the surface appearance, wear resistance and anti-slip not meeting high requirements. In addition, the stability, lightness, ...
Claims
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Application Information
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