What is the production process of polyurethane insulation board?

Polyurethane is short for polyurethane. Where the polymer main chain contains -NHCOO - group of polymer compounds commonly known as polyamino acid formate. Generally, polyamino acid formate is obtained by the interaction of dibasic or multibasic organic isocyanates with polyol compounds (polyether polyol or polyester polyol).

Polyurethane materials are a class of multi-purpose synthetic resins in a variety of product forms, which are widely used in the form of foams, elastomers, coatings, adhesives, fibers, synthetic leather, waterproofing materials, as well as auxiliary materials for transportation, construction, machinery, electronic equipment, furniture, food processing, textiles and garments, synthetic leather, printing, mining and metallurgy, petroleum and chemical engineering, water conservancy, national defense, sports, medical care, and other industries. Water conservancy, national defense, sports, medical and other fields.

Foam is one of the main varieties of polyurethane synthetic materials, its main feature is that it is porous, and thus has a low relative density and high strength. According to the different raw materials used and the changes in the formula can be made into flexible, semi-rigid, and rigid polyurethane foam and so on; according to the different varieties of polyol used can also be divided into polyester, polyether and castor oil type polyurethane foam; if according to the method of its hair gun can be divided into block, molded and sprayed polyurethane foam and other types of foam.

The main materials used in polyurethane are organic isocyanate, polyol compounds and various additives.

Through my answer, I hope to solve the problem.