一种耐高温沥青面层拼接用改性胶粘剂制备及性能  

Preparation and properties of modified adhesive for splicing asphalt surface course with high temperature resistance

作　　者：刘成永 LIU Chengyong(Henan Expressway Development Co.,Ltd.,Zhengzhou Branch,Zhengzhou 450052,China)

机构地区：[1]河南高速公路发展有限责任公司郑州分公司,河南郑州450052

出　　处：《粘接》2025年第1期47-50,共4页Adhesion

摘　　要：为优化扩建工程沥青面层拼接施工的质量,提出一种扩建工程沥青面层拼接用耐高温改性胶粘剂制备与性能分析。采用硼改性酚醛树脂、固体羧基丁腈橡胶等材料,制备扩建工程沥青面层拼接用耐高温胶粘剂试样,分别制备固体羧基丁腈混炼胶质量分数为8%、12%和16%的试样,通过高温老化、热性能测试等手段,测定不同试样的耐高温性能与应用效果。结果显示:混炼胶质量分数为16%的试样在高温状态下黏度下降较快,无法维持稳定的抗热性,而混炼胶质量分数为12%时,具有较高的拉伸剪切强度、且在温度较高情况下可以避免产生较大的质量损失,为此,添加12%羧基丁腈混炼胶的胶粘剂,具有较优的实际应用性。To optimize the quality of asphalt surface layer splicing construction in expansion projects,the prepara⁃tion and performance analysis of high-temperature resistant adhesives for asphalt surface layer splicing in expansion projects was proposed.Boron-modified phenolic resin,solid carboxy-nitrile butadiene rubber and other materials were used to prepare high-temperature adhesive samples for asphalt surface course splicing of expansion projects,and samples with solid carboxy-nitrile butadiene rubber mixture with mass fractions of 8%,12%and 16%were pre⁃pared respectively,and the high-temperature resistance and application effect of different samples were determined by means of high-temperature aging and thermal performance testing.Results showed that the viscosity of the sam⁃ple with a mass fraction of 16%of the mixed rubber decreased rapidly at high temperatures and could not maintain stable heat resistance,However,when the mass fraction of the mixed rubber was 12%,it had higher tensile shear strength and could avoid significant mass loss at higher temperatures.Therefore,adding 12%carboxyl nitrile mixed rubber adhesive has better practical applicability.

关 键 词：扩建工程 沥青面层 耐高温胶粘剂 高温老化 固体羧基丁腈 酚醛树脂 

分 类 号：TQ437.1[化学工程]