The mechanism of transmit heat and the calculation model of the thermal conductivity of the soft polyurethane foam have been discussed and the affect factors of the thermal conductivity.

This article analyzes briefly the factors of effects on heat lose of thermal insulating engineering, such as thermal conductivity, humidity, and thickness of insulating layer etc.

This paper briefly introduces the performance requirements of the insulating materials such as the thermal conductivity, heat expansion coefficient, and density, etc.