Hebei Messi Biology Co., Ltd. stated that ethylene vinyl acetate (EVA) material is widely used in photovoltaic materials, solar energy due to its good flexibility, high and low temperature resistance, and excellent acid and alkali resistance. Adhesive films, wires and cables, shoe materials, plastic packaging and other fields. However, the combustion performance of EVA materials is poor, which poses certain safety risks for some occasions with strict flame retardant requirements. Improving the flame retardant properties of EVA materials by adding flame retardants has become a hot research area. This article will explore the application of magnesium hydroxide flame retardants in EVA.
Synthesis of magnesium hydroxide flame retardant
1. Material preparation:
To prepare microcapsule flame retardants containing magnesium hydroxide, you first need to prepare the required materials, including magnesium hydroxide, polyvinyl acetate (PVA), ethanol and anhydrous dichloromethane.
2. Synthetic steps:
(1) Dissolve an appropriate amount of PVA in ethanol and stir thoroughly to obtain a PVA solution.
(2) Add magnesium hydroxide powder to anhydrous methylene chloride and stir to disperse evenly.
(3) Slowly add the PVA solution dropwise to the magnesium hydroxide suspension and continue stirring until a uniform emulsion is formed.
(4) Continue stirring at room temperature for 2 hours to allow the PVA in the emulsion to completely coat the magnesium hydroxide particles.
(5) The emulsion obtained by the reaction is solidified by a certain method to form a microcapsule flame retardant containing magnesium hydroxide.
3. Application of magnesium hydroxide flame retardant in EVA
(1) Functional evaluation:
The synthesized microcapsule flame retardant containing magnesium hydroxide was added to the EVA material, and its thermal stability, flammability, pyrolysis kinetics and other properties were tested experimentally.
(2) Breaking strength test:
Through tensile experiments, the breaking strength of EVA materials with different contents of microcapsule flame retardants containing magnesium hydroxide was tested.
(3) Flame retardant effect test:
Under experimental conditions, combustion tests were conducted on EVA materials with different contents of microcapsule flame retardants containing magnesium hydroxide, and the burning time, fire intensity, and amount of smoke generated were recorded.
By synthesizing microcapsule flame retardants containing magnesium hydroxide and applying them to EVA materials, the flame retardant properties of EVA materials can be effectively improved. Experimental results show that adding an appropriate amount of microcapsule flame retardant containing magnesium hydroxide can significantly improve the thermal stability and flame retardant properties of EVA materials, and inhibit the flammability and smoke generation of the material. Therefore, this flame retardant is expected to be widely used in EVA materials to improve product safety and reliability.
Hebei Messi Biology Co., Ltd. stated that magnesium hydroxide flame retardant in EVA is of great significance in improving the flame retardant performance of EVA materials. Future research directions include improving the synthesis method and optimizing the amount of flame retardant added to further improve the flame retardant properties of EVA materials and promote their application in more fields. In summary, the application of magnesium hydroxide flame retardant to EVA The flame retardant properties of the material can be significantly improved. Adding an appropriate amount of flame retardant can improve the thermal stability and flame retardant properties of EVA materials, and inhibit the flammability and smoke generation of the material. Therefore, magnesium hydroxide is expected to be widely used in EVA materials to improve product safety and reliability. Future research directions should include improving the synthesis method and optimizing the addition amount of magnesium hydroxide to further improve the flame retardant properties of EVA materials and promote their application in more fields, which is of great significance to improving the flame retardant properties of EVA materials.