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EVA foam material: a lightweight and versatile "universal sponge"
EVA foam material, also known as ethylene vinyl acetate copolymer foam material, is a lightweight polymer material made through physical or chemical foaming processes. It is known as the "universal sponge" due to its unique pore structure, which presents the characteristics of softness, elasticity, and lightweight texture.
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EVA foam material, also known as ethylene vinyl acetate copolymer foam material, is a lightweight polymer material made through physical or chemical foaming processes. It is known as the "universal sponge" due to its unique pore structure, which presents the characteristics of softness, elasticity, and lightweight texture.
Core feature: Why is it so versatile?
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Excellent cushioning and shock absorption
High resilience and tensile strength, effectively absorbing impact.
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Good insulation and heat preservation
Closed cell structure effectively isolates heat and is resistant to severe cold and sun exposure.
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Excellent water and corrosion resistance
Sealed pores do not absorb water and are resistant to seawater, grease, acid and alkali.
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Excellent processing and environmental friendliness
Easy to cut and fit, non-toxic and environmentally friendly, and biodegradable.
The performance of EVA foam material is mainly determined by the content of vinyl acetate (VA) in its molecular structure. The VA content ranges from 5% to 40%, and different ratios will endow the material with different characteristics. For example, when the VA content is between 15% and 22%, the material exhibits the best comprehensive performance, making it the most widely used in the field of shoe materials.
Application field panoramic scanning
With its outstanding performance, EVA foam material has penetrated into every aspect of our lives, from shoes under our feet to buildings above our heads, from toys at our fingertips to precision electronic devices.
1. Shoe material: a lightweight and comfortable "shock absorber"
This is the main application area of EVA foam material. It is widely used in the midsole and sole of sports shoes, travel shoes, and hiking shoes, providing excellent cushioning and shock absorption effects to enhance wearing comfort. In addition, EVA is also used for internal structures such as insoles and tongue to increase the softness and warmth of the shoe body.
EVA foam material structure for the midsole of sports shoes
EVA foam material structure for the midsole of sports shoes
2. Packaging and transportation: the "safety armor" of precision instruments
EVA foam material is an ideal packaging material for precision instruments, electronic products, and medical devices. Its excellent shock resistance, moisture resistance, and anti-static properties can effectively protect products from damage during transportation and storage. At the same time, it is also used to make lining for jewelry, cosmetics, alcohol and other products, playing a role in fixing, shock resistance and decoration.
3. Toys and sports equipment: a perfect combination of safety and functionality
In the field of children's toys, EVA foam material is popular because of its non-toxic, soft and good cushioning performance, and is often used to make foam toys, puzzles, slides, etc. In terms of sports equipment, it is used to make yoga mats, fitness mats, sports protective gear (such as knee pads, elbow pads), and racket handles, providing protection and comfort for athletes.
EVA yoga mat and protective gear
EVA yoga mat and protective gear
4. Architecture and Building Materials: Energy saving and Efficient 'Insulation Guardians'
In the field of construction, EVA foam material can be used to make soundproof boards and insulation boards, and its good insulation and sound insulation performance helps to improve the energy-saving efficiency of buildings. At the same time, it is also used for roof insulation, floor heating systems, and as a core material for glass film, protecting glass from external impacts.
Key Applications of EVA in Architecture
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roof insulation
Lightweight and efficient
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floor heating system
Uniform thermal conductivity
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soundproof panel
Noise reduction and shock absorption
5. Automotive parts: dual responsibility of lightweight and comfort
In the automotive industry, EVA foam material can be used to make shock absorbers for car seats, soundproof and shock-absorbing components for door panels and instrument panels, floor mats, etc., enhancing driving comfort. At the same time, it is also used for interior decoration of automobiles, such as armrests, ceiling linings, etc., which combines aesthetics and practicality.
EVA foam seat cushion
EVA foam seat cushion
6. Wires and cables: safe and reliable "insulated armor"
EVA resin is used to make halogen-free flame-retardant cables, semiconductor shielded cables, etc. due to its good insulation and crosslinkability. This type of cable does not release toxic gases during combustion, meets environmental requirements, and is widely used in computer rooms and other places with high safety and fire prevention requirements.
7. Daily necessities and home furnishings: ubiquitous "caring assistants"
EVA foam material is ubiquitous in daily life. It can be used to make bathroom anti slip mats, picnic mats, mouse pads and other household items, as well as decorative materials such as wall stickers and window decorations, adding convenience and color to life.
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