High-molecular-weight hydrophilic zwitterionic antistatic agent as well as preparation method and application thereof

The invention discloses a high-molecular-weight hydrophilic zwitterionic antistatic agent as well as a preparation method and application thereof. The preparation method comprises the following steps: synthesizing an amphoteric monomer (2-methacryloyloxy) ethyl dimethyl alkyl acid ammonium bromide by taking dimethylaminoethyl methacrylate and brominated alkyl acid as raw materials; adopting an emulsion method to carry out free radical copolymerization on an amphoteric monomer and acrylamide to synthesize a high molecular weight hydrophilic zwitterionic antistatic agent. Compared with a conductive filler and an anionic or cationic polymer antistatic agent, the hydrophilic zwitterionic antistatic agent prepared by the invention has the following characteristics: the surface resistivity is low and can reach 107 omega; the compatibility with high polymer materials is good; the antistatic performance is lasting; the influence on the mechanical property is small, and the like. 本发明公开了一种高分子量亲水两性离子型抗静电剂及其制备方法和应用，该静电剂以