| 摘要 |
<p>The invention relates to a rubber composition for hydroinsulating foil which, according to the invention, has a high content of rubber recycled from used tyres and it is used for obtaining foils for hydroinsulating irrigation canals, basins for storing waste waters, tanks for storing water in agriculture or stock raising farms, manure depositing pits, as well as for hydroinsulating the roofs of the civil and industrial constructions. According to the invention, it consists of 30...40 parts of butadien-styrene elastomer, 30...40 parts of regenerated rubber, 30...40 parts of cured crumb rubber deriving from used tyres, 35...45 parts of SRF furnace black, 80...90 parts of crushed chalk, 2.5...3.5 parts of zinc oxide, 0.5...1 parts of stearine, 1...2 parts of a H antioxygen consisting of 1,2-dihydro-2,2,4-trimethylquinoline oligomer, 15...20 parts of medium oil extract, 5...10 parts of bitumen, 1...15 parts of CBS accelerator, consisting of cyclohexyl-benzthiazylsulphenamide and 1,0...1,5 parts of milled sulphate, the parts being expressed by weight.</p> |
