摘要
为解决氮化硼纳米颗粒与高分子基材难以浸润相容、分散性差、易团聚的难题,本文以改性氮化硼(BN)、环氧丙烯酸酯齐聚物、甲基丙烯酸月桂酯(LMA)、三官能团酸酯(SR9051 NS)、偶氮二异丁腈(AIBN)和对苯二酚等为原料,制备了丙烯酸酯导热结构胶,并对其流变性能、导热性能、粘接性能等进行表征。研究结果表明:导热结构胶的黏度及其固化物的导热系数随改性氮化硼用量的增加而增大,改性氮化硼用量为40%时,导热结构胶的导热系数相比未添加氮化硼的结构胶提升了540%。随着改性氮化硼含量的增加,剪切强度呈现先增加后下降的趋势,其中20%BN/SA导热结构胶的剪切强度最高可达15 MPa。
To solve the problems of difficult infiltration compatibility,poor dispersibility,and easy aggregation between boron nitride nanoparticles and polymer substrates,acrylic thermal conductive structural adhesive was prepared in this paper by using modified boron nitride(BN),epoxy acrylate oligomers,lauryl methacrylate(LMA),trifunctional acid ester(SR9051 NS),azobisisobutyronitrile(AIBN),and hydroquinone as raw materials,and its rheological properties,thermal conductivity,and bonding properties were characterized.The research results showed that the viscosity of thermal conductive structural adhesive and the thermal conductivity of its cured material increased with the increase of modified boron nitride amount.When the amount of modified boron nitride was 40%,the thermal conductivity of thermal conductive structural adhesive was 540%higher than that of the structural adhesive without boron nitride added.With the increase of modified boron nitride amount,the shear strength showed a trend of first increasing and then decreasing,among which the shear strength of 20%BN/SA thermal conductive structural adhesive could reach up to 15 MPa.
作者
刘妹
葛冰洁
戚安杰
于竹青
项尚林
Liu Mei;Ge Bingjie;Qi Anjie;Yu Zhuqing;Xiang Shanglin(College of Materials Science and Engineering,Nanjing Tech University,Nanjing 211816,Jiangsu,China;Shandong Lihe New Material Technology Co.,Ltd.,Jining 272200,Shandong,China)
出处
《中国胶粘剂》
2025年第5期18-22,28,共6页
China Adhesives
基金
泰山产业领军人才工程资助项目。
关键词
导热结构胶
改性氮化硼
机械强度
导热性能
thermal conductive structural adhesive
modified boron nitride
mechanical strength
thermal conductivity
作者简介
刘妹(1997-),女,安徽滁州人,硕士在读,主要从事导热高分子材料研究。E-mail:liumei@njtech.edu.cn;通信作者:于竹青。E-mail:zyu@njtech.edu.cn。
