摘要
导热粒子填充聚合物复合材料是覆铜板半固化片的理想选择。为提高聚合物复合材料的导热性能,通过铁盐和亚铁盐的原位共沉淀反应在片状氧化铝表面修饰了晶粒尺寸约14nm的磁性Fe_(4)O_(3)纳米粒子。片状Al_(2)O_(3)@Fe_(4)O_(3)复合粒子采用空间位阻小的三元共混有机硅醇进行偶联改性后,耐热温度达300℃,并可改善聚合物体系的两相界面。片状Al_(2)O_(3)@Fe_(4)O_(3)复合粒子及其偶联改性复合粒子具有超顺磁性,在磁场诱导下可垂直取向,在覆铜板领域具有较大的应用前景。
Thermal conductive particle-filled polymer composite is an ideal choice for prepreg of copper clad laminate.In order to improve the thermal conductivity of polymer composites,magnetic Fe_(4)O_(3)nanoparticles with grain size of about 14nm were modified on the surface of flaky alumina by in-situ coprecipitation of ferric salt and ferrous salt.Then the flaky Al_(2)O_(3)@Fe_(4)O_(3)composite particles were modified with ternary blending organosilanol with low steric hindrance.The heat resistance temperature of the prepared composite particles reached 300℃and the two-phase interface of the polymer system could be improved.Flaky Al_(2)O_(3)@Fe_(4)O_(3) composite particles and their coupling modified composite particles had great application prospects in the field of copper clad laminate due to their superparamagnetism and vertical orientation induced by magnetic field.
作者
胡佳馨
覃意深
陈振兴
徐庆崇
廖妍玲
刘永锋
李龙
魏世洋
Hu Jiaxin;Qin Yishen;Chen Zhenxing;Xu Qingchong;Liao Yanling;Liu Yongfeng;Li Long;Wei Shiyang(School of Chemical Engineering and Technology,Sun Yat-Sen University,Zhuhai 519082;School of Chemistry and Environment,Jiaying University,Meizhou 514015;The Key Laboratory of Low-Carbon Chemistry&Energy Conservation of Guangdong Province,Guangzhou 510275)
出处
《化工新型材料》
CAS
CSCD
北大核心
2023年第S01期197-200,207,共5页
New Chemical Materials
基金
梅州市科技计划项目(2019B0203001)
关键词
片状氧化铝
四氧化三铁
偶联改性
界面
flaky alumina
Fe_(3)O_(4)
coupling modification
interface
作者简介
胡佳馨(1996-),女,硕士研究生,主要研究方向为导热复合材料,E-mail:570727554@qq.com;通讯作者:陈振兴(1965-),男,教授,博士研究生导师,主要从事导热导电粉体及其复合材料的研究,E-mail:chenzx65@mail.sysu.edu.cn。
