表面活性剂吐温-80用量对硬质闭孔型三聚氰胺泡沫的影响  

Effect of Tween-80 surfactant on rigid closed-cell melamine foam

作　　者：胡江冰 孙洁[1] 钱坤[1] 魏晴晴[1] HU Jiangbing;SUN Jie;QIAN Kun;WEI Qingqing(Key Laboratory of Eco-Textile of Ministry of Education,Jiangnan University, Wuxi 214122 ,China)

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122

出　　处：《功能材料》2017年第8期58-62,共5页Journal of Functional Materials

基　　金：中央高校基本科研业务费专项资金资助项目(JUSRP51505;JUSRP51718A);江苏省产学研联合创新资金-前瞻性联合研究资助项目(BY2015019-33;BY2016022-07);连云港市产业前瞻与共性关键技术科技资助项目(CG1520);江苏省自然科学基金-青年基金资助项目(BK20160157);"十三五"国家重点研发计划资助项目(2016YFC-0304301;2016YFB0303200);江苏省科技成果转化资助项目(BA2016170;BA2016117);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：以三聚氰胺、甲醛为原料合成可发性密胺树脂并制备出表面活性剂(吐温-80)含量不同的泡沫样品。通过树脂表面张力测试,发现随着吐温-80含量增加,树脂表面张力呈现先减小后不变的趋势。通过对SEM、力学测试的对比分析,研究了吐温-80含量对泡沫的微观结构及压缩性能的影响。结果显示,当吐温-80含量<9%时,随着其含量的增加,泡孔直径逐渐减小,尺寸分布更加均匀,泡壁膜撕破程度增加,但吐温-80含量达到9%后,泡孔直径反而增大,均匀度下降。同时研究发现泡沫的压缩性能受到泡沫微观结构的影响,在吐温-80用量为5%时,泡沫的压缩强度和弹性模量分别达到最大值。泡沫的吸声性能受到泡沫结构的影响,随着闭孔率减小,吸声性能提高。Melamine and formaldehyde,as raw materials,were used to synthesize expandable melamine-formal-dehyde(MF)resin,then the foam samples with different surfactant content was prepared based on the MF res-in.The surface tension test result showed that the surface tension decreased first and then unchanged with Tween-80content increasing.The effects of surfactant content on foam structure and compression properties were discussed through the SEM photos and mechanical test.The results indicated that when Tween-80content was less than9wt%9cell diameter decreased,the size distribution became more and more uniform and the extent of film tear increased with the Tween-80content increasing.Then the larger pores and uneven distribution of cells appeared when Tween-80content was9%.Besides,study found that microstructure of foam has an im-pact on the compression properties.The compression strength and compression elastic modulus of the foam reached the maximum value with the Tween-80content of5%.And the structure of the foam affected the soundabsorption performance,which could be improved with the decrease of closed cells.

关 键 词：闭孔三聚氰胺泡沫 吐温-80 树脂表面张力 泡孔结构 压缩性能 吸声性能 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]