Good-appearance enhanced SAN-PA66 composition as well as preparation method and application thereof

The invention discloses a good appearance enhanced SAN-PA66 composition as well as a preparation method and application thereof. The SAN composition comprises the following components in parts by weight: 15 to 40 parts of SAN resin; 25 to 45 parts of PA66 resin; 10 to 35 parts of a toughening agent; 5 to 20 parts of glass fiber; 2-7 parts of a compatilizer; 0-5 parts of an auxiliary agent; wherein the content of acrylonitrile in the SAN resin is not less than 28wt%. The compatibility of the SAN resin and the glass fibers is improved by adding the PA66 resin, the PA66 resin is crystalline resin and can repel the glass fibers outside crystals of the glass fibers, and the PA66 resin has high fluidity and is more easily dispersed on the surface of a matrix in the processing process, so that floating fibers of the matrix are improved, and the prepared SAN-PA66 composition has good appearance and is suitable for large-scale production. The solvent resistance is relatively good, the water absorption rate is relative