High-content fluorine-containing polymer processing master batch and preparation method thereof

The invention discloses a high-content fluorine-containing polymer processing master batch, comprising the following components in percentage by weight: 70%-90% of fluorine-containing polymer and 10%-30% of active polyol stearate. The fluorine-containing polymer preferably is tetrafluoroethylene-hexafluoropropylene copolymer, and the active polyol stearate is selected from pentaerythritol double stearate and pentaerythritol tristearate. The invention also discloses a preparation method of the high-content fluorine-containing polymer processing master batch. The master batch produced by the process does not contain carrier resin, avoids the problem of compatibility with resin and has the characteristics of wide generality and high lubrication efficiency. The content of effective elements is up to 70%-90%, the addition amount is small, heating operation is not used in the preparation process, the process is simple, the production device is easy to get, and the operability is strong.