| abstract |
The invention provides a low-density polyurethane heat-conducting gel and a preparation method thereof, belonging to the technical field of heat-conducting. Isocyanate is added to the components, and the product obtained by cross-linking polymer polyol and isocyanate is used as the matrix of the thermally conductive gel, and the modified thermally conductive powder, glass microbeads, plasticizer, water remover and other components are uniformly dispersed in the gel. In the matrix, a thermally conductive gel is obtained. After the cured polyurethane low-density thermally conductive gel is tested for thermal conductivity and density, compared with the test results of ordinary silicone thermally conductive gels, it is obvious that the polyurethane low-density thermally conductive gel of the present invention has Not only is there a significant improvement in thermal conductivity, but also the density is lower. |