橡塑保温材料

项目                                                  单位                                                    性能指标
　　表现密度　　                                 Kg/m3                                                 50-120
　　燃烧性能                                                                                                           B1
　　氧指数　　　                              　%                                                             ≥33
　　导热系数                                      W/(m.k)
　　平均温度　　
　　-20℃                                                                                                            ≤0.031
　　0℃                                                                                                              ≤0.034
　　40℃                                                                                                            ≤0.036
　　透湿性能　　透湿系数                   G/(m.s pa)                                   ≤4.4×10-10
　　　　　　        湿阻因子                         -                                               ≥4.5×1000　　　　
　　真空吸水率                                             %                                            ≤10
　　尺寸稳定性105±3℃,7d                  　%                                　        ≤10
　　撕裂强度　　　　　　　　　          N/cm                                          ≥2.5
　　压缩回弹率                                           %                                                ≥70
　　                    压缩率50%
　　                   压缩时间72h
　　耐臭氧性                                                  -                                              不龟裂                
　　     臭氧分压202mpa
　　      200h
　　搞老化性150h                                     -                  轻微起皱，无裂纹，无针孔，不变形

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