| abstract |
The invention discloses a styrene-derived copolymer sizing agent, which is obtained by copolymerizing phenolic substances and organic acid anhydrides with styrene monomers and acrylate monomers. The preparation method includes the following steps: dissolving a phenolic substance, an organic acid anhydride and a strong base in water and mixing them to fully react; then adding acrylate monomers, styrene monomers, emulsifiers, molecular weight regulators and initiators for free base polymerization to obtain the styrene-derived copolymer sizing agent. The styrene-derived copolymer sizing agent of the invention is a new type of sizing agent. The sizing agent is based on the traditional SAE sizing agent, and after the introduction of phenolic substances, the strength of the sizing paper can be obviously improved and folding endurance. |