Mechanical Properties of Polypropylene-Based Flame Retardant Composites by Surface Modification of Flame Retardants

编号 020036105

推送时间 20220919

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Mechanical Properties of Polypropylene-Based Flame Retardant Composites by Surface Modification of Flame Retardants

来源期刊 Polymers

期 第361期

发表时间 20220827

关键词 flame retardant;  fire retardant;  inorganic;  phosphorus;  resin blends; 

摘要 A flame retardant refers to a substance that can be added to a material having the property of being efficiently combusted to improve the material physically and chemically. It should not affect the physical properties required for the final product. Halogen-based compounds are representative flame retardants with excellent flame retardancy. However, their use is limited due to restrictions on the use of chemicals introduced due to human safety. Magnesium hydroxide, one alternative material of halogen flame retardants, is widely used as an eco-friendly flame retardant. However, the most significant disadvantage is high load. To find a solution to this problem, many studies have been conducted by mixing magnesium hydroxide with other additives to create a synergistic effect. In this study, flame retardancy and mechanical properties of polypropylene-based flame retardant composites as a function of mixing surface-modified magnesium hydroxide with phosphorus-based flame retardants were investigated. All materials including PP, additives, and flame retardants were mixed using an extrusion process. Specimens were prepared by an injection process of the compound made after mixing. As a result of the evaluation of the mechanical properties by the modified flame retardant, the relational expression of the mechanical performance degradation as a function of the amount of addition was obtained, and the tensile (CBATS) and bending strength (CBABS) were performed on the amount of flame retardant added. The relational expression obtained in this study is considered to be a formula for predicting the strength reduction according to the addition amount of the modified flame retardant and can be used in industry. In addition, it was found that the addition amount of the modified flame retardant had a greater effect on the lowering of the bending strength.

服务人员 尚玮姣

服务院士 宋湛谦

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