| abstract |
The invention discloses an amino-terminated hyperbranched polyamide modified waste dander used as a graphene oxide monolayer small-size dispersant, a preparation method and application thereof. In the invention, the modified degraded waste dander and carboxymethylated modified graphene oxide are intercalated and compounded by amino-terminated hyperbranched polyamide, so as to prepare oxidative compounds with few lamellae and small sizes, which are suitable for use as leather tanning agents and fatliquoring agents. Graphene nanosheet dispersion. The invention prepares a degraded dandruff solution with a small relative molecular mass by controlling the alkali degradation and enzymatic degradation conditions of the waste dandruff, which is beneficial to intercalate and disperse the graphite oxide nano-sheet layer, and is beneficial to the formation of steric hindrance and lamellae. The repulsive force between the layers, the hydrophilicity of the graphene oxide nanosheets and the dispersibility in water are relatively high, and the prepared graphene oxide monolayer small-size dispersion is used for leather tanning and fatliquoring, and can be significantly improved. Improve the softness, fullness and elasticity of leather, and reduce the discharge of chrome tanning agents, dyes and fatliquors in wastewater. |