公开(公告)号：US12065607B1

公开(公告)日：2024-08-20

申请号：US18395733

申请日：2023-12-25

Applicant: SICHUAN UNIVERSITY

Inventor： Junwen Ren ,  Zi Wang ,  Shenli Jia ,  Lihua Zhao ,  Huachao Wei ,  Lichuan Jia ,  Guoqing Jiang ,  Ruichi Zeng

IPC: C09K5/14 ,  C08J3/205 ,  C08K3/38 ,  C08K9/02 ,  C08K9/04 ,  C09C3/00 ,  C09C3/04 ,  C09C3/08 ,  C09K9/00

CPC classification number: C09K5/14 ,  C08J3/2056 ,  C08K9/02 ,  C08K9/04 ,  C09C3/006 ,  C09C3/048 ,  C09C3/08 ,  C09K9/00 ,  C01P2004/03 ,  C01P2004/24 ,  C01P2006/32 ,  C08J2383/04 ,  C08K2003/385 ,  C08K2201/001 ,  C08K2201/011

Abstract: A silicone rubber composite heat dissipation pad and a preparation method thereof are provided. The method includes: dispersing hydroxyl-functionalized boron nitride nanosheet powder into deionized water, pouring it into a specialized container, pre-freezing it using liquid nitrogen, and then freeze-drying it to obtain a boron nitride nanosheet skeleton arranged in a horizontal direction; uniformly dispersing thermochromic nanoparticles in acetone to obtain a dispersion, mixing the dispersion with liquid silicone rubber and stirring until acetone is completely evaporated, then adding a curing agent to obtain a liquid silicone rubber pre-cure solution; pouring the liquid silicone rubber pre-cure solution into a container containing the boron nitride nanosheet skeleton, so that the liquid silicone rubber pre-cure solution is fully immersed in an interior of the boron nitride nanosheet skeleton; and then curing is carried out by elevating the temperature to obtain the heat dissipation pad.