Characteristics and precautions of EVA material
As the current heart material, EVA appears in home life. It often acts as a sound insulation material, floor material, cushioning material, etc., and appears in decoration projects. EVA material as a carpet has many advantages, for example, good shock resistance, waterproof, electric resistance and so on. Let me give you an introduction to EVA materials.
EVA carpet-EVA material characteristics
Water resistance: airtight cell structure, no water absorption, moisture resistance, and good water resistance.
Corrosion resistance: resistant to chemical corrosion such as sea water, grease, acid, alkali, antibacterial, non-toxic, odorless, and pollution-free.
Processability: No joints, and easy to process such as hot pressing, cutting, gluing, and bonding.
Anti-vibration: high resilience and anti-tension, high toughness, good shock-proof and cushioning performance.
Thermal insulation: excellent thermal insulation, cold-preservation and low-temperature performance, and can withstand severe cold and exposure.
Sound insulation: airtight cell, good sound insulation effect.
EVA carpet-common characteristics of EVA materials
When the content of vinyl acetate in EVA is less than 20%, it can be used as a plastic. EVA has good low-temperature resistance. Its thermal decomposition temperature is relatively low, about 230°C. As the molecular weight increases, the softening point of EVA increases, and the processability and surface gloss of plastic parts decrease, but the strength increases and impact Toughness and environmental stress cracking resistance are improved. EVA’s chemical resistance and oil resistance are slightly worse than PE and PVC, and the changes become more obvious with the increase of vinyl acetate content.
Compared with PE, the performance of EVA is improved, mainly in terms of elasticity, flexibility, gloss, air permeability, etc. In addition, its resistance to environmental stress cracking has been improved, and its tolerance to fillers has increased. It can be used to add more reinforcing fillers. Ways to avoid or reduce the degradation of EVA mechanical properties than PE. EVA can also be modified to obtain new applications. Its modification can be considered from two aspects: one is to use EVA as the backbone for grafting other monomers; the other is to partially alcoholy EVA.
EVA carpet-EVA material handling and attention
Hazardous combustion products: carbon monoxide, carbon dioxide.
Fire fighting method: firefighters must wear gas masks and full-body fire fighting clothes, and put out the fire in the upwind direction. Extinguishing agent: water mist, foam, dry powder, carbon dioxide, sandy soil.
Emergency treatment: Isolate the leaked contaminated area and restrict access. Cut off the fire source. It is recommended that emergency response personnel wear dust masks (full face masks) and gas-proof suits. Avoid dust, sweep up carefully, put in a bag and transfer to a safe place. If there is a large amount of leakage, collect it for recycling or transport it to a waste disposal site for disposal.
Operation Note: Airtight operation, provide good natural ventilation conditions. Operators must undergo special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filter dust respirators, chemical safety glasses, protective clothing and rubber gloves. Keep away from fire and heat sources, and smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment. Avoid generating dust. Avoid contact with oxidants and alkalis. When handling, load and unload with care to prevent damage to packaging and containers. Equipped with corresponding types and quantities of fire-fighting equipment and leakage emergency treatment equipment. Empty containers may be harmful residues.
Storage Note: Store in a cool, ventilated warehouse. Keep away from fire and heat sources. It should be stored separately from oxidants and alkalis, and avoid mixed storage. Equipped with the appropriate variety and quantity of fire equipment. The storage area should be equipped with suitable materials to contain the leakage.
Post time: Nov-02-2021