Patent: Modified Polyurethane Sheath Improves Flame Retardancy and Wear Resistance
Another patent (CN-120718438-B) describes a highly flexible drag chain cable using a modified polyurethane material that significantly improves flame retardancy and wear resistance through a multi-stage chemical modification process .
Technical Innovation:
Modified polysiloxane and phosphorus substances are prepared into a modified flame retardant through amine aldehyde condensation .
The modified flame retardant is introduced into a polyurethane chain segment through a block reaction .
A modified polyurethane with a three-dimensional network structure is obtained through a chain extension reaction .
Benefits:
Enhanced flame retardant performance
Improved wear resistance
Better torsion resistance
The cable comprises a battery core, a wrapping layer, and a sheath layer from inside to outside, with the modified polyurethane sheath providing the enhanced performance characteristics .
