摘要
选择多壁碳纳米管和石墨烯颗粒增强酚醛泡沫为研究对象,分析对比纳米碳颗粒对酚醛泡沫力学性能和热性能的影响。研究表明,纳米碳颗粒增强酚醛泡沫的力学性能和热性能明显要优于未掺纳米碳颗粒的酚醛泡沫,表现在(1)掺入多壁碳纳米管的酚醛泡沫样品C2.4具有最高的压缩强度,达到0.27 MPa,高出未掺纳米碳颗粒的酚醛泡沫170.0%;而掺入石墨烯颗粒的酚醛泡沫样品G1.2具有最高的压缩强度比,高出未掺纳米碳颗粒的酚醛泡沫156.2%。(2)纳米碳颗粒增强酚醛泡沫具有低的导热系数,样品G1.2具有最低的导热系数为0.057 W/(m·K),相比未掺纳米碳颗粒的酚醛泡沫,降低了36.0%;TGA测试表明,纳米碳颗粒增强酚醛泡沫具有更高的热稳定性;DCS测试进一步表明纳米碳颗粒的加入在一定程度上促进了酚醛泡沫固化反应的进行。因此,相较于未掺纳米碳颗粒的酚醛泡沫,纳米碳颗粒增强酚醛泡沫的力学性能和热性能都有明显改善。
With muhi-walled carbon nanotubes （MWCNTs） and graphene particles reinforced phenolic resin as the research objects, the influence of carbon nanoparticles on the mechanical properties and thermal properties of phenolic resin was analyzed. The results show that carbon nanoparticles enhance the mechanical and thermal properties of phenolic resin obviously compared with neat phenolic resin, as described below. （ 1 ） The phenolic resin sample C2.4 adding MWCNTs shows the highest compressive strength of 0. 27 MPa, 170.0% higher than neat phenolic resin. And the doped graphene sample of phenolic resin particles, G1.2, has the highest compressive strength ratio, 156.2% higher than that of neat phenolic resin. （2） The sample G1.2, carbon nanoparticles reinforced phenolic resin with low coefficient of thermal conductivity, has a minimum thermal conductivity is 0. 057 W/（ m · K）, 36.0% lower than neat phenolic resin. TGA test results show that carbon nanoparticles enhance the thermal stability of phenolic foam; DCS test results further show that the addition of carbon nanoparticles in a certain extent promotes the cure reaction of phenolic resin. Therefore, compared with neat phenolic resin, carbon nanoparticles enhance the mechanical properties and thermal properties of phenolic resin significantly.
出处
《塑料工业》
CSCD
北大核心
2017年第6期144-147,共4页
China Plastics Industry
关键词
纳米碳颗粒
酚醛泡沫
力学性能
热性能
Carbon Nanoparticles
Phenolic Foams
Mechanical Properties
Thermal Properties
