用于公路的丙烯酸酯类聚氨酯/碳纳米管材料的制备与性能分析  

Preparation and Properties Analysis of Acrylic Polyurethane/Carbon Nanotube Materials for Highway Applications

作　　者：吕东滨 杨洋[2] 李斌[3] LÜDong-bin;YANG Yang;LI Bin(Guangxi Zhonghe Expressway Co.,Ltd.,Hezhou 542800,China;Guangxi Transport Vocational and Technical College,Nanning 530214,China;Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]广西钟贺高速公路有限公司,广西贺州542800 [2]广西交通职业技术学院,广西南宁530214 [3]兰州交通大学,甘肃兰州730070

出　　处：《塑料科技》2024年第11期73-76,共4页Plastics Science and Technology

基　　金：广西交通运输行业重点科技项目(桂交便函[2021]148号:59);广西交通职业技术学院横向课题(X-GL-SHZGS(S)-GUX-TB-05-JS-011);广西交通职业技术学院科学研究重大指定项目(JZY2021KZD01)。

摘　　要：为避免公路图标和标识线受到恶劣环境的侵蚀,延长公路图标和标识线使用寿命,研究用于公路的丙烯酸酯类聚氨酯/碳纳米管材料的制备与性能分析。采用异佛尔酮-二异氰酸酯、偶氮二异丁腈等材料制备实验用丙烯酸酯类聚氨酯,分别在其中添加质量分数为0.2%、0.4%以及0.6%酸化处理后的碳纳米管,制成3种不同碳纳米管掺量的试样,通过力学性能测试以及耐磨性测试分析每种试样的应用效果。结果表明:当碳纳米管质量分数为0.2%时,材料的力学性能及耐磨性较弱,可见添加较少的碳纳米管无法提高材料性能;当碳纳米管掺量达到0.6%时,材料基础性能明显低于碳纳米管质量分数为0.4%时的试样。在不同方法测试下,添加质量分数0.4%碳纳米管的试样可以保持优异的热稳定性,当处于高温状态时,材料的拉伸强度和撕裂强度均保持较高水平,且磨损率相对较低。因此,添加质量分数0.4%碳纳米管的丙烯酸酯类聚氨酯更适用于公路建设。To avoid the erosion of highway icons and signage lines by harsh environments and extend their service life,the preparation and performance analysis of acrylic polyurethane/carbon nanotube materials for highways were studied.Experimental acrylic polyurethane was prepared using materials such as isophorone diisocyanate and azobisisobutyronitrile.Carbon nanotubes with mass fractions of 0.2%,0.4%and 0.6%after acidification treatment were added to the polyurethane,and three different carbon nanotube dosages were prepared as samples.The application effects of each sample were analyzed through a mechanical property test and a wear resistance test.The results show that when the mass fraction of carbon nanotubes is 0.2%,the mechanical properties and wear resistance of the materials are weak,indicating that adding fewer carbon nanotubes cannot improve material quality.When the carbon nanotube mass fraction reaches 0.6%,its basic performance is significantly lower than that of the sample with a carbon nanotube mass fraction of 0.4%.Under different testing methods,the sample with 0.4%mass fraction carbon nanotubes added can maintain excellent thermal stability.The tensile strength and tear strength of the materials are at a high level in a high temperature state,and the wear rate is relatively low.Therefore,acrylic polyurethane with 0.4%mass fraction of carbon nanotubes added is more suitable for highway construction.

关 键 词：丙烯酸酯类 碳纳米管 力学性能 耐磨性 

分 类 号：TQ630[化学工程—精细化工]