| 摘要 |
The utility model relates to a polymer composition for manufacturing lightweight roof and cladding building products. The polymer composition contains in weight %: polypropylene from 18 to 30, glass fibers 2, and perlite sand from 69 to 82, with grain size of up to 1.5 mm. The polypropylene used can be waste material. A specific implementation of the polymer composition is disclosed containing in weight %: polypropylene 19, glass fibers 2, and perlite sand 79, with grain size of up to 0.1 mm. Another specific implementation is disclosed, characterized by the fact that the composition contains in weight %: polypropylene 29, glass fibers 2, and perlite sand 69, with grain size of up to 0.15 mm. 4 claims |
