New energy vehicle charging gun shell material and preparation method thereof

Abstract

The invention relates to a new energy vehicle charging gun shell material and a preparation method thereof. The new energy vehicle charging gun shell material consists of the following components in parts by weight: 60 to 90 parts of a polycarbonate resin base material, 10 to 80 parts of silicified polycarbonate resin, 5 to 12 parts of an acrylic ester impact modifier, 6 to 25 parts of a methyl methacrylate-styrene copolymer, 4 to 8 parts of nano-silica, 1 to 5 parts of a compatilizer, 0.2 to 2 parts of pentaerythritol tetraisostearate, 0.2 to 2 parts of silicone powder, 0.5 to 2 parts of an antioxidant, 0.2 to 0.6 part of a light stabilizer, 0.3 to 1 part of bis(2,dimethylaminoethyl)ether, 0.1 to 0.5 part of n-octyltrichlorosilane, 0.2 to 0.4 part of a flame retardant and 0.5 to 2 parts of polytetrafluoroethylene powder. The charging gun shell material disclosed by the invention has high impact resistance, high wear and scratch resistance (pencil hardness grade 3H), heat and ultraviolet light resistance, flame retardance UL94-V0 (1.5 mm), glow wire test (850 DEG C, 1 mm) and the oxygen index of 38 at a normal temperature (23 DEG C) and low temperatures (negative 30 DEG C and negative 50 DEG C).

Description

technical field [0001] The invention relates to the field of car charging gun shell materials, in particular to a new energy car charging gun shell material and a preparation method thereof. Background technique [0002] As an important part of electric vehicle charging facilities, the performance of the charging gun has an important impact on the entire charging process. However, as a new type of charging facility, the use environment of the charging gun is different from the traditional charging environment. It not only needs to have the reliability and safety of the charging gun that will not be affected by various harsh natural environments for a long time, but also need to have the ability to prevent the charging gun from being damaged by frequent man-made fading, scratches, dragging and even car rolling. It will cause mechanical and electrical damage, which will bring safety hazards to users, and will not be reduced due to the long charging and discharging process tim...

AI Technical Summary

Problems solved by technology

The material has good low-temperature notched impact strength and flame retardancy, but the material is not scratch-resistant, and it is easy to be scratched and replaced during the trial process. It cannot meet the requirements for the use of charging gun shell materials in harsh environments.

[0008] However, the modified polycarbonate involved in the prior art can only meet part of the use requirements of the charging gun shell, but fails to meet the performance indicators comprehensively. How to overcome the above technical problems has become the direction of efforts of ordinary technicians in the art.