Description
Introduction to polyurethane core materials
Its density is 40kg/m3, thermal conductivity coefficient is 0.021w/m.k, water repellency >98%, combustion performance B1, B2, B3 levels, with prices ranging from high to low.
Combined polyether: Commonly known as white material. It is made from a mixture of polyether polyols, catalysts, foaming agents, flame retardants, and other components. Domestic brands include Wanhua Chemical and Wanhua Rongwei; international brands include BASF, Huntsman, Bayer.
Isocyanate: Polymer MDI (methylene diphenyl diisocyanate), commonly known as black material, with major brands being Wanhua Chemical, BASF, Bayer, Huntsman.
Characteristics and advantages of polyurethane sandwich panels
① The panels are uniform and stable with excellent thermal insulation and waterproof performance.
② Good airtightness (commonly used in cold storage).
③ Lightweight with an attractive appearance, effectively solving temperature differences in the refrigeration industry.
④ Easy and quick installation, can be resized according to needs.
⑤ Classified as B-level fireproof material.
⑥ Good surface flatness.
⑦ Superior water tightness.
⑧ No cold bridge phenomenon.
⑨ Lightweight structure.
⑩ Environmentally friendly and healthy.