| abstract |
The invention discloses an elastic modified bitumen waterproofing membrane, which is characterized in that it comprises an upper modified bitumen layer, a tire base layer and a lower modified bitumen layer in sequence from top to bottom; The lower surface of the modified asphalt layer and the lower modified asphalt layer are respectively laid with an isolation membrane layer independently of each other; wherein, the materials used for the upper modified asphalt layer and the lower modified asphalt layer are the same, which are composed of the following groups by weight. Divided into: 65-75 parts of asphalt, 3-5 parts of hyperbranched poly(urethane-amine) with vinyl end groups as hydroxyl internal branch units, 2-4 parts of methyl vinyl silicone rubber, bischloride 4-7 parts of end-capped polydimethylsiloxane/2,5-bis(diethylamino)phenyl-1,3,4-oxadiazole polycondensate, 3-5 parts of sulfonated ethylene-propylene-diene rubber , 0.3-0.5 parts of initiator. The elastically modified bitumen waterproofing membrane disclosed by the invention has remarkable waterproof effect, good high temperature resistance, mechanical and mechanical properties and anti-aging properties, as well as long wear resistance and service life. |