Between the use of MMT layer of water as rigid polyurethane foam blowing agents composite polyurethane composite board manufacturers, improving the foaming process. The study found organic montmorillonite composites greatly improved thermal stability and fire retardant properties of the composite polyurethane panels, including PU / DDA-MMT composite material has the highest mechanical properties, thermal stability and flame retardance. TCEP and DMMP two kinds of flame retardants using different proportions after complex, better than a single flame retardant, when TCEP: DMMP = 1: 2 Supply composite polyurethane panels (mass ratio), to meet the oxygen index of the foam At the same composite polyurethane MILL, other physical properties are better. Adjusting the isocyanate index of 3, plus three polymerization catalyst, the obtained flame retardant polyurethane foam of oxygen index of 32, to GB 8624-1997 "burning of construction materials classification method performance in" BI class (flame retardant grade) under the . Rigid polyurethane board | Qinghua plastic (certified) | Polyurethane panel provided by Tsinghua Engineering Plastics Co. ShangYinXian. ShangYinXian Qinghua Plastics Co., Ltd. (www.tyxqhgc.com) is Anyang, other leaders, over the years, the company implement the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Tsinghua engineering leadership with the staff warmly welcome all inquiries negotiations to create a better future Tsinghua engineering.