一种微细扁线自粘性复合绝缘层及成型方法
By modifying boron nitride, the problem of uneven dispersion of boron nitride in the insulating varnish matrix was solved, and the electrical insulation performance and mechanical properties were synergistically improved, thus preparing a self-adhesive composite insulation layer suitable for micro-fine flat wires.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GUANGDONG SUNTEK WIRE CO LTD
- Filing Date
- 2026-02-07
- Publication Date
- 2026-07-17
AI Technical Summary
In the prior art, hexagonal boron nitride is not evenly dispersed in the insulating varnish matrix, which affects the uniformity of the composite coating performance. In addition, the physical adsorption binding force is weak, and it is easy to agglomerate due to external force or temperature changes.
Boron nitride is modified by generating zirconium oxide and introducing active carbon-carbon double bonds on its surface, and by using the thiol-alkene click reaction of mercaptoaniline and mercaptosuccinic acid for organic modification, forming a dense network of hydrogen bonds and covalent bonds, thereby improving dispersibility and interfacial bonding strength.
The uniform dispersion of boron nitride in insulating varnish was achieved, which improved the electrical insulation and mechanical properties. After the coating film was formed, it had high breakdown field strength, low dielectric loss, good hardness and tensile strength, and met the requirements of use in complex environments.