When choosing a good polyurethane spray, you must first understand its work
发布时间： 2018-05-04 11:22 Author: Polyurethane foam machine Source: http: //motokone.com
Published: 2018-05-04 11:22
When choosing a good job, you must first understand its working environment, nature of work, etc .; When choosing a good object, you must first understand his work, character, etc .; choose a good polyurethane spray, First understand the nature of its work, its characteristics of effects, and so on.
Polyurethane spraying is based on isocyanate and polyether as the main raw materials. It is a high-molecular polymer that is foamed on-site by high-pressure spraying under the action of various auxiliary agents such as foaming agents, catalysts, and flame retardants. Polyurethane rigid foam is a new type of synthetic material with thermal insulation and waterproof functions. Its thermal conductivity is low, only 0.022 ～ 0.024W / (m? K), which is equivalent to half of the extruded board. It is the thermal conductivity of all current thermal insulation materials. low. At present, polyurethane foam is mainly used in building exterior wall insulation, roof waterproofing and insulation integration, cold storage thermal insulation, pipeline thermal insulation materials, building boards, refrigerated trucks and cold storage thermal insulation materials.
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