Synthesis and Leather Application Properties of a Carboxylated Graphene Oxide Modified Waterborne Polyacrylate Leather Finishing Agent
Main Article Content
Abstract
Carboxylated graphene oxide (GO-COOH), prepared by the
reaction of bromoacetic acid with the hydroxyl and epoxy groups
on the graphene oxide (GO) layers, was blended into a poly(ethyl
acrylate) (PEA) emulsion and a PEA emulsion based polyacrylate
leather finishing agent respectively, to prepare PEA/GO-COOH
composite emulsions and GO-COOH modified waterborne
polyacrylate leather finishing agents. The consequence of the
amount of GO-COOH on the properties of the PEA film and
related leather coatings were systematically investigated. The
results indicate that stable GO-COOH dispersed composite
emulsions were generated leading to homogeneously dispersed
composite films. With an increase in the GO-COOH amount
from 0 wt% to 0.5 wt%, the tensile strength increased by 106.2%.
Additionally, TGA results demonstrated an improvement of the
thermal stability of PEA film after modified with GO-COOH.
ost importantly, the folding resistance and rubbing fastness
properties of leather finished with GO-COOH modified
polyacrylate leather finishing agents were improved
proportionate to the GO-COOH amount. Therefore, the
GO-COOH modified waterborne polyacrylate leather finishing
agent possesses improved performances and likely offers
beneficial leather finishing application properties.
reaction of bromoacetic acid with the hydroxyl and epoxy groups
on the graphene oxide (GO) layers, was blended into a poly(ethyl
acrylate) (PEA) emulsion and a PEA emulsion based polyacrylate
leather finishing agent respectively, to prepare PEA/GO-COOH
composite emulsions and GO-COOH modified waterborne
polyacrylate leather finishing agents. The consequence of the
amount of GO-COOH on the properties of the PEA film and
related leather coatings were systematically investigated. The
results indicate that stable GO-COOH dispersed composite
emulsions were generated leading to homogeneously dispersed
composite films. With an increase in the GO-COOH amount
from 0 wt% to 0.5 wt%, the tensile strength increased by 106.2%.
Additionally, TGA results demonstrated an improvement of the
thermal stability of PEA film after modified with GO-COOH.
ost importantly, the folding resistance and rubbing fastness
properties of leather finished with GO-COOH modified
polyacrylate leather finishing agents were improved
proportionate to the GO-COOH amount. Therefore, the
GO-COOH modified waterborne polyacrylate leather finishing
agent possesses improved performances and likely offers
beneficial leather finishing application properties.
Article Details
Section
Articles