Preparation and properties of bamboo fibre/polyurethane composite grouting materials
This article first uses maleic anhydride to modify bamboo fibers,and then prepares polyurethane grouting materials with different bamboo fiber additions through in-situ polymerization.The effect of bamboo fiber additions on the viscosity,foaming rate,and compressive strength of polyurethane grouting materials is studied.The results showed that with the increase of bamboo fiber addition,the viscosity of polyurethane grouting material gradually in-creased,while its foaming rate and compressive strength first increased and then decreased.When the addition a-mount of bamboo fiber is 3％,the viscosity of the composite material is 2.30 Pa·s,and the foaming rate and com-pressive strength reach their maximum values,which are 21.5 times and 2.09 MPa,respectively.Overall,it can be concluded that the optimal performance of the grouting material is achieved when the addition amount of modified bamboo fiber is 3％.
PolyurethaneBamboo fibreSurface modificationGrouting material
万方数据
维普
