公开(公告)号：US11794383B2

公开(公告)日：2023-10-24

申请号：US17816465

申请日：2022-08-01

Applicant: Beijing Institute of Technology

Inventor： Baosheng Xu ,  Chenqi Wang ,  Lijie Qu ,  Yanfei Chen ,  Daining Fang ,  Yazheng Yang

IPC: B29C39/12 ,  C09K5/14 ,  C08L61/06 ,  C08K3/04 ,  B29C39/42 ,  F16L59/02 ,  B29K61/04 ,  B29K507/04

CPC classification number: B29C39/123 ,  B29C39/42 ,  C08K3/04 ,  C08L61/06 ,  C09K5/14 ,  F16L59/029 ,  B29K2061/04 ,  B29K2507/04 ,  B29K2995/0013 ,  C08K2201/001

Abstract: Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.