新材料与新技术

改性酚醛泡沫及其碳泡沫的制备与性能研究

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  • 1.江南大学生态纺织教育部重点实验室,无锡214122;
    2.江苏省先进纺织工程技术中心,南通226007
宋佳音(1995-),女,硕士研究生,主要研究方向为功能性纺织材料。

收稿日期: 2019-09-17

  修回日期: 2020-09-30

  网络出版日期: 2021-01-27

基金资助

中央高校基本科研业务费专项资金资助项目(JUSRP41910);江苏省“双创计划”科技副总项目(FZ20180843);江苏省先进纺织工程技术中心开放基金科研项目(XJFZ/2018/04)

Preparation and property of modified phenolic foam and CF-MMT

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  • 1. Key Laboratory of Eco-Textiles,Ministry of Education,Jiangnan University,Wuxi 214122;
    2. Jiangsu Advanced Textile Engineering Technology Center,Nantong 226007

Received date: 2019-09-17

  Revised date: 2020-09-30

  Online published: 2021-01-27

摘要

以可发性酚醛树脂为前驱体,蒙脱土为改性剂,通过常压发泡法制备了孔径均匀、结构良好的酚醛树脂泡沫和蒙脱土改性酚醛泡沫;然后经800℃高温碳化,制得酚醛碳泡沫和蒙脱土/酚醛碳泡沫。研究结果表明,添加蒙脱土可使泡孔结构更加均匀,表观密度和粉化率增加。经高温处理的碳泡沫泡孔孔径明显减小,表观密度下降,粉化率增加。相比纯酚醛泡沫,蒙脱土/酚醛泡沫的耐热性较好,且残碳率由42.6%增加至45.9%。制备的4种泡沫材料中,纯酚醛碳泡沫的导热性能最好,蒙脱土/酚醛泡沫的隔热性能较好。

本文引用格式

宋佳音, 孙福文, 蔡以兵, 张炜栋, 魏取福 . 改性酚醛泡沫及其碳泡沫的制备与性能研究[J]. 化工新型材料, 2021 , 49(1) : 99 -103 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.01.022

Abstract

Using foamable phenolic resin as precursor and montmorillonite (MMT) as modifier,phenolic resin (PF) and MMT-PF foams with uniform pore size and good structure were prepared by atmospheric pressure foaming method.Then phenolic carbon foams (CF) and MMT modified carbon foams (CF-MMT) were prepared by carbonizing the two foams at 800℃ respectively.The results indicated that the addition of MMT could made the cellular structure more uniform and increased the density and powdering degree of the foams.The pore size and density of the CF was significantly reduced and powdering degree increased after high temperature treatment.Compared with pure PF foams,MMT-PF had better heat resistance,and the charred residue rate increased from 42.6% to 45.9%.Among the four foams,CF and CF-MMT demonstrated better thermal conductivity and thermal insulation,respectively.

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