Binder is an important
ingredient in pigment coating as it is used to impart adhesion, gloss and
flexibility to the dried film as well as binding the pigment particles together.
The aim of this work was to synthesize polymeric binders via radical
copolymerization of acrylic acid (AA) with maleic anhydride (MA) and with
2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS). The chemical structures
of the prepared binders were characterized by FTIR and 1HNMR
analysis. The rheology of the prepared binders was also investigated. The
prepared binders were applied in paper coating suspensions and their effects on
optical, mechanical, and physical properties in addition to printability of the
coated paper were studied. The results showed that acrylic maleic anhydride
copolymers increased the adhesion, gave good film forming properties and good
surface activity which increased print quality of paper coating. It was also
found that MA/AA (50:50) and the blend between MA/AA (50:50) with AMPS:AA
(30:70) have more suitable coating film properties and have highest pick
resistance which is resemble to the commercial binder.
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