Bridge waterproof polyurethane elastomer as well as preparation method and application thereof
The invention relates to a bridge waterproof polyurethane elastomer and a preparation method and application thereof.The bridge waterproof polyurethane elastomer comprises a prefabricated shape follow-up hollow polyurethane elastomer and a cast-in-situ negative Poisson's ratio polyurethane mate...
Saved in:
Main Authors | , , , , , , , , , , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
29.12.2023
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to a bridge waterproof polyurethane elastomer and a preparation method and application thereof.The bridge waterproof polyurethane elastomer comprises a prefabricated shape follow-up hollow polyurethane elastomer and a cast-in-situ negative Poisson's ratio polyurethane material, and the prefabricated shape follow-up hollow polyurethane elastomer is filled with the cast-in-situ negative Poisson's ratio polyurethane material; stress generated by stretching of the bridge waterproof polyurethane elastomer in the transverse direction and the longitudinal direction is relieved, cracking of the interior and the interface of the bridge waterproof polyurethane elastomer is prevented, the service life of a product is prolonged, meanwhile, due to the fact that the prefabricated polyurethane elastomer expansion joint is in an extruded state, the large-size expansion joint cannot sink under the gravity effect, and the preparation method is simple, feasible and low in cost. The method is suitable for l |
---|---|
Bibliography: | Application Number: CN202311288600 |