低温发泡制备酚醛泡沫材料及其表征  

Preparation and characterization of phenolic foam used low-temperature foaming and curing method

作　　者：庄晓伟[1] 张伟[2] 王基夫[2] 李守海[2] 王春鹏[2] 储富祥[2] 

机构地区：[1]浙江省林业科学研究院浙江省森林资源生物与化学利用重点实验室,杭州310023 [2]中国林业科学研究院林产化学工业研究所国家林业局林产化学工程重点开放性实验室,南京210042

出　　处：《化工新型材料》2010年第S1期144-148,共5页New Chemical Materials

基　　金：国家863计划(2007AA100704);948重大项目(2006-4-C03);浙江省科技厅重大招标项目(2007C12018)

摘　　要：采用40℃低温发泡的方法制备酚醛泡沫,研究了发泡剂、表面活性剂和固化剂对泡沫的表观密度和压缩强度的影响,讨论了低温发泡对泡沫力学性能、导热性能、泡孔形态、阻燃性能、微观结构和热稳定性的影响。试验结果表明,40℃低温发泡对酚醛泡沫的阻燃性和热稳定性影响较小,泡沫的韧性和脆性得到了明显改善,泡孔孔径更小、分布更加均匀。In this paper,the phenolic foam is preparated by 40 degrees centigrade low-temperature foaming and curing method. The blowing agent,acid catalyst and effects of surfactant on apparent density and compressive strength were investigated according to variables of phenolic foam property. And the effects of low-temperature foaming and curing on mechanical characterization,heat insulation,cell form,fire-retardant,micro-structure and thermal stability was discussed.The results indicated that low-temperature foaming and curing was little effect on fire-retardant and thermal stability,and can improve the brittleness and flexibility of foam. The comprehensive performance of foam structure was the best,for example,the cell became smaller and distributed more uniformly.

关 键 词：低温发泡 酚醛泡沫 力学性能 泡孔形态 

分 类 号：TQ328.1[化学工程—合成树脂塑料工业]