Flame-retardant sheath for sanitation electric vehicle charger plug and preparation method of sheath

Abstract

The invention provides a flame-retardant sheath for a sanitation electric vehicle charger plug and a preparation method of the flame-retardant sheath, and relates to the technical field of sanitationelectric vehicle production. The flame-retardant sheath is prepared from the following raw materials in parts by weight: 40-50 parts of ethylene propylene diene monomer rubber, 25-35 parts of butadiene rubber, 5-10 parts of expanded perlite, 5-10 parts of expanded vermiculite powder, 6-8 parts of antimonous oxide, 3-5 parts of calcium sulfate, 8-10 parts of brominated polystyrene, 5-7 parts of poly(ethyleneglycol p-phenyldibutyrate), 3-5 parts of 2,4-diaminomalonic acid tetramethyl phosphoric acid, 6-8 parts of polyimide fibers, 0.6-1.0 part of a cross-linking agent, 1-2 parts of a plasticizerand 2-3 parts of a dispersing agent. The defects in the prior art are overcome, the fireproof and flame-retardant performance of the sheath material can be effectively improved, the sheath is prevented from being ignited to damage the charging plug and even intensify fire spreading, the safety is high, the anti-cracking performance and the anti-aging performance of the sheath can be effectively improved, and the sheath is excellent in overall performance, long in service life and suitable for popularization.

Description

technical field [0001] The invention relates to the technical field of sheath production, in particular to a flame-retardant sheath for a sanitation electric vehicle charger plug and a preparation method thereof. Background technique [0002] The simple understanding of the sanitation electric vehicle is that it is driven by electricity. It has the advantages of environmental protection, beauty and reduction of secondary pollution, and is used by the relevant sanitation system departments. The earth needs low-carbon environmental protection, and the sanitation department bears the brunt. As a cleaning tool, the sanitation electric vehicle has no pollution itself and has been recognized by the sanitation department. There are many advantages of sanitation electric vehicles. In addition to being beautiful and adding style to the city appearance, it also reduces labor intensity, saves labor costs, improves work efficiency, and also realizes the low-carbon environmental protecti...

AI Technical Summary

Problems solved by technology

[0003] Sanitation electric vehicles need to be charged and driven through the charger plug, and the sheath covered on the plug is generally made of ordinary rubber material, which has poor flame retardancy. In this way, when the outside world burns during use, the sheath It is easy to be ignited and damage the charging plug, and even aggravate the spread of fire, with low safety performance