塑料科技2024，Vol.52Issue(1)：75-79,5.DOI:10.15925/j.cnki.issn1005-3360.2024.01.017
硬质阻燃保温聚氨酯复合材料的制备与性能研究
Preparation and Performance Study of Rigid Flame Retardant Insulation Polyurethane Composites
杨凯波 1刘康礼2
作者信息
- 1. 扬州市职业大学,江苏 扬州 225000
- 2. 启迪设计集团股份有限公司,江苏 苏州 215000
- 折叠
摘要
Abstract
Polyurethane materials have good chemical resistance and mechanical properties,which are widely used in many fields.However,the characteristic of easy combustion limits their further application.In order to obtain polyurethane composites with both flame retardancy and good mechanical properties,ammonium polyphosphate(APP)was surface modified with arginine(Arg)to improve their flame retardancy and thermal insulation performance against hard polyurethane.The results showed that when the content of Arg-APP was 10%,the LOI value of the polyurethane composites was maintained at around 27%,passing the UL-94 V0 level.The total heat release value of the polyurethane composites was maintained at 40 MJ/m2,the carbon residue rate was maintained at around 25%,and the tensile strength and bending strength were 58.23 MPa and 7.22 MPa,respectively.The elongation at break was maintained at around 7.39%.Overall,the appropriate addition of Arg-APP can effectively improve the flame retardancy and anti dripping performance of polyurethane,allowing polyurethane composites to have a longer ignition time and lower total heat release.It also effectively improves the carbon forming effect of polyurethane composites and enhances their thermal stability in high-temperature environments.Arg-APP not only improves the tensile strength and bending strength of polyurethane composites,but also effectively improves the elongation at break of the material.关键词
聚氨酯/聚磷酸铵/精氨酸/阻燃性能Key words
Polyurethane/Ammonium polyphosphate/Arginine/Flame retardancy分类
通用工业技术引用本文复制引用
杨凯波,刘康礼..硬质阻燃保温聚氨酯复合材料的制备与性能研究[J].塑料科技,2024,52(1):75-79,5.
