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林产化学与工业

林产化学与工业 ›› 2013, Vol. 33 ›› Issue (2): 61-65.doi: 10.3969/j.issn.0253-2417.2013.02.010

• 研究报告 • 上一篇    下一篇

环保无卤阻燃剂对酚醛泡沫塑料性能影响

马玉峰, 王春鹏, 张伟, 许玉芝, 储富祥   

  1. 中国林业科学研究院 林产化学工业研究所;生物质化学利用国家工程实验室;国家林业局 林产化学 工程重点开放性实验室;江苏省 生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2012-11-23 修回日期:1900-01-01 出版日期:2013-04-30 发布日期:2013-04-30
  • 通讯作者: 储富祥(1963-),男,研究员,博士生导师,主要从事乳液聚合、胶黏剂及生物质材料的研究工作;E-mail:chufuxiang@caf.ac.cn。

Effects of Eco-friendly Halogen-free Flame Retardants on the Properties of Phenolic Foams (PFs)

MA Yu-feng, WANG Chun-peng, ZHANG Wei, XU Yu-zhi, CHU Fu-xiang   

  1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. of Forest Chemical Engineering, SFA;Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
  • Received:2012-11-23 Revised:1900-01-01 Online:2013-04-30 Published:2013-04-30

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摘要： 以苯酚(4.26 mol)、多聚甲醛(7.28 mol)、甲醛(1.24 mol)为原料,NaOH为催化剂,采用逐步共缩聚的合成工艺,制备高固含量甲阶酚醛树脂,选择3种环保型无卤阻燃剂(APP、MP、LM-NPP 8081)复合酚醛树脂制备酚醛泡沫,通过测试泡沫力学性能、阻燃性能、易碎性、耐热性能和导热性能等,研究阻燃剂的种类及添加量对酚醛泡沫性能影响。结果表明:3种阻燃剂都能明显提高泡沫的阻燃性,对泡沫的耐热性能和导热系数的影响不是很显著。当阻燃剂添加量为8 %时,阻燃剂复合的酚醛泡沫的机械性能较优, 并且MP复合酚醛泡沫的综合性能较好,此时MP复合泡沫的氧指数为55.22 %,压缩强度为0.30 MPa,弯曲强度为0.28 MPa,掉渣率为34.40 %,导热系数为0.045 W/(m·K),300 ℃残炭量 87.50 %,600 ℃残炭量61.12 %。结果表明3种阻燃剂中MP是一种较适合酚醛泡沫体系的阻燃剂。

关键词: 无卤阻燃剂, 酚醛树脂, 耐热性能, 酚醛泡沫

Abstract: The resol phenolic resin with high solid content was prepared with formaldehyde (1.24 mol), paraformaldehyde (7.28 mol) and phenol (4.26 mol), using NaOH as catalyst, via step polymerization. Three eco-friendly halogen-free flame retardants (ammonium polyphosphate (APP), melamine phosphate (MP) and LM-NPP 8081) were chosen. The effects of their presences on the mechanical properties, flame retardancy, fragility, thermal conductivity and heat resistance of PFs were investigated. The results showed that the flame retardancy of the PFs was significantly improved, while both thermal resistant and thermal conductivity of PFs were not enhanced. When the amount of flame retardant was 8%, machanical properties of PFs were the best, and the comprehensive performances of MP composite PFs was better than the other two. Limited oxygen index, compression strength, bending strength, fragitily properties, thermal conductivity and carbon residue of MP composite PFs were 55.22 %, 0.30 MPa, 0.28 MPa, 34.40%, 0.045 W/(m·K), 87.50 %(300 ℃) and 61.12 % (600 ℃) respectively. The results showed that MP was better flame retardant for PFs than the other two.

Key words: halogen-free flame retardants, phenolic resin, thermal resistance, phenolic foams

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