Rubber and plastics are soft thermal insulation made by adopting certain technologies and processes, as well as automated production lines, and using nitrile rubber and polyvinyl chloride (a kind of plastic) as the main raw materials, together with various auxiliary materials, and foaming through a special process. Thermal insulation and energy-saving materials. According to the shape, it can be divided into rubber-plastic tube, rubber-plastic board and other materials, and they have different applications. Due to the characteristics of the material, its use advantages, such as the vacuum water absorption rate and the moisture permeability coefficient are less than the technical standard requirements, the advantages It has long service life, relatively low price, convenient installation, not easy to fall off, low maintenance cost, and can be reused. From this point of view, the comprehensive cost and long-term economic benefits of rubber-plastic insulation materials are greater than other insulation materials. It can be said that rubber-plastic insulation materials are economical and energy-saving insulation materials. Take the rubber-plastic pipe as an example to illustrate the energy-saving advantages of rubber and plastic materials made of rubber and plastic. According to the heat loss of the pipe heat transfer, the rubber-plastic insulation pipe is used, and each heating period is more than used. Other insulation materials can reduce the heat cost by 1/2. Therefore, generally speaking, the pipeline insulation project of central air-conditioning will choose rubber-plastic insulation materials with low water absorption coefficient, good insulation performance, easy pipeline maintenance, and relatively low price.