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Application skills of natural rubber in EVA foam bottom
- Categories:news
- Author:
- Origin:
- Time of issue:2021-11-24 11:46
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(Summary description)EVA, or ethylene-vinyl acetate copolymer, is currently a common material used in shoe soles and uppers in shoe processing companies. EVA foam sole has good moisture absorption, heat resistance, abrasion resistance, weather resistance, and oil resistance, but it is easy to slip when walking in wet ground, and the sole is hard under low temperature conditions. This is caused by its own material defects. With the continuous development and advancement of rubber and plastic combined technology, the use of natural rubber in EVA soles can significantly improve the easy slippage and hardening of EVA soles at low temperatures, and can also improve the puncture resistance of rubber soles. 1. Control the amount of natural rubber Reasonable use of natural rubber in EVA soles can significantly improve the overall performance of the soles, but in actual production, the amount of natural rubber is not the better. It is understood that the foaming efficiency of EVA foam soles is closely related to the amount of natural rubber. The foaming rate continues to decrease with the increase of the amount of natural rubber. When the amount of natural rubber increases, the melt viscosity of the blended material 2LLYY0313-SJ will increase, which in turn causes The problem of difficulty in degassing and uneven foaming of foamed materials, the shrinkage of the finished EVA foam bottom is significantly increased. Under normal circumstances, in the production of EVA-natural rubber foamed soles, the amount of natural rubber should not exceed 20 parts to ensure uniform foaming of EVA foamed soles and reduce the shrinkage of the finished product. 2. EVA-natural rubber foam sole compounding agent types Using a small amount of natural rubber in the EVA foam bottom can significantly improve the elasticity and elongation of the foam bottom, and the comfort of the foam bottom is significantly improved. When using EVA-natural rubber blending materials to prepare foam bottoms, when rubber products manufacturers choose peroxides such as DCP for vulcanization, the physical and mechanical properties of the blending materials are better; choosing the foaming agent AC foam can better coordinate the vulcanization speed and the hair The relationship between the foam speed, thereby further improving the foaming efficiency and foaming uniformity of the foamed rubber sole. The combination of rubber and plastic materials has better performance and lower cost, and is currently widely used. The use of a small amount of natural rubber in the EVA foam sole can significantly improve the overall performance of the sole. Butadiene rubber, styrene butadiene rubber, etc. can also be used in the foam sole formulation with EVA as the main material. In actual production, rubber product manufacturers not only need to control the amount of natural rubber and compounding agents in the EVA foam bottom formula, but also need to reasonably control the vulcanization process and foaming process of the sole according to the processing properties of the rubber and EVA materials. With regard to the production and processing of EVA-natural rubber foamed soles, the editor has the opportunity to continue discussing with you.
Application skills of natural rubber in EVA foam bottom
(Summary description)EVA, or ethylene-vinyl acetate copolymer, is currently a common material used in shoe soles and uppers in shoe processing companies. EVA foam sole has good moisture absorption, heat resistance, abrasion resistance, weather resistance, and oil resistance, but it is easy to slip when walking in wet ground, and the sole is hard under low temperature conditions. This is caused by its own material defects. With the continuous development and advancement of rubber and plastic combined technology, the use of natural rubber in EVA soles can significantly improve the easy slippage and hardening of EVA soles at low temperatures, and can also improve the puncture resistance of rubber soles.
1. Control the amount of natural rubber
Reasonable use of natural rubber in EVA soles can significantly improve the overall performance of the soles, but in actual production, the amount of natural rubber is not the better. It is understood that the foaming efficiency of EVA foam soles is closely related to the amount of natural rubber. The foaming rate continues to decrease with the increase of the amount of natural rubber. When the amount of natural rubber increases, the melt viscosity of the blended material 2LLYY0313-SJ will increase, which in turn causes The problem of difficulty in degassing and uneven foaming of foamed materials, the shrinkage of the finished EVA foam bottom is significantly increased.
Under normal circumstances, in the production of EVA-natural rubber foamed soles, the amount of natural rubber should not exceed 20 parts to ensure uniform foaming of EVA foamed soles and reduce the shrinkage of the finished product.
2. EVA-natural rubber foam sole compounding agent types
Using a small amount of natural rubber in the EVA foam bottom can significantly improve the elasticity and elongation of the foam bottom, and the comfort of the foam bottom is significantly improved. When using EVA-natural rubber blending materials to prepare foam bottoms, when rubber products manufacturers choose peroxides such as DCP for vulcanization, the physical and mechanical properties of the blending materials are better; choosing the foaming agent AC foam can better coordinate the vulcanization speed and the hair The relationship between the foam speed, thereby further improving the foaming efficiency and foaming uniformity of the foamed rubber sole.
The combination of rubber and plastic materials has better performance and lower cost, and is currently widely used. The use of a small amount of natural rubber in the EVA foam sole can significantly improve the overall performance of the sole. Butadiene rubber, styrene butadiene rubber, etc. can also be used in the foam sole formulation with EVA as the main material. In actual production, rubber product manufacturers not only need to control the amount of natural rubber and compounding agents in the EVA foam bottom formula, but also need to reasonably control the vulcanization process and foaming process of the sole according to the processing properties of the rubber and EVA materials. With regard to the production and processing of EVA-natural rubber foamed soles, the editor has the opportunity to continue discussing with you.
- Categories:news
- Author:
- Origin:
- Time of issue:2021-11-24 11:46
- Views:
EVA, or ethylene-vinyl acetate copolymer, is currently a common material used in shoe soles and uppers in shoe processing companies. EVA foam sole has good moisture absorption, heat resistance, abrasion resistance, weather resistance, and oil resistance, but it is easy to slip when walking in wet ground, and the sole is hard under low temperature conditions. This is caused by its own material defects. With the continuous development and advancement of rubber and plastic combined technology, the use of natural rubber in EVA soles can significantly improve the easy slippage and hardening of EVA soles at low temperatures, and can also improve the puncture resistance of rubber soles.
1. Control the amount of natural rubber
Reasonable use of natural rubber in EVA soles can significantly improve the overall performance of the soles, but in actual production, the amount of natural rubber is not the better. It is understood that the foaming efficiency of EVA foam soles is closely related to the amount of natural rubber. The foaming rate continues to decrease with the increase of the amount of natural rubber. When the amount of natural rubber increases, the melt viscosity of the blended material 2LLYY0313-SJ will increase, which in turn causes The problem of difficulty in degassing and uneven foaming of foamed materials, the shrinkage of the finished EVA foam bottom is significantly increased.
Under normal circumstances, in the production of EVA-natural rubber foamed soles, the amount of natural rubber should not exceed 20 parts to ensure uniform foaming of EVA foamed soles and reduce the shrinkage of the finished product.
2. EVA-natural rubber foam sole compounding agent types
Using a small amount of natural rubber in the EVA foam bottom can significantly improve the elasticity and elongation of the foam bottom, and the comfort of the foam bottom is significantly improved. When using EVA-natural rubber blending materials to prepare foam bottoms, when rubber products manufacturers choose peroxides such as DCP for vulcanization, the physical and mechanical properties of the blending materials are better; choosing the foaming agent AC foam can better coordinate the vulcanization speed and the hair The relationship between the foam speed, thereby further improving the foaming efficiency and foaming uniformity of the foamed rubber sole.
The combination of rubber and plastic materials has better performance and lower cost, and is currently widely used. The use of a small amount of natural rubber in the EVA foam sole can significantly improve the overall performance of the sole. Butadiene rubber, styrene butadiene rubber, etc. can also be used in the foam sole formulation with EVA as the main material. In actual production, rubber product manufacturers not only need to control the amount of natural rubber and compounding agents in the EVA foam bottom formula, but also need to reasonably control the vulcanization process and foaming process of the sole according to the processing properties of the rubber and EVA materials. With regard to the production and processing of EVA-natural rubber foamed soles, the editor has the opportunity to continue discussing with you.
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