High temperature and aging resistant silicone rubber material for battery heat insulation film frame and preparation method thereof

Abstract

The invention discloses a high-temperature-resistant and ageing-resistant silicone rubber material for a battery heat isolation film frame and a preparing method of the high-temperature-resistant and ageing-resistant silicone rubber material. The high-temperature-resistant and ageing-resistant silicone rubber material is prepared by following raw materials including, by weight, 44-57 parts of phenylene silicone rubber, 13-19 parts of pentaerythritol ester of hydrogenated rosin, 2-4 parts of methyl 2-benzoylbenzoate, 14-22 parts of hollow nano silicon dioxide microspheres, 4-6 parts of iron oxide, 3-5 parts of tungsten oxide, 10-15 parts of glass wool waste, 12-18 parts of tetra-(2-ethylhexyl)pyromellitate, 2-3 parts of 2,4-DCBP, 5-9 parts of hydroxyl-fluoro silicone oil, 4-6 parts of zinc carbonate, 11-17 parts of picrite basalt, 1-3 parts of dithiodiglycol dimyristictate, 1-2 parts of an accelerant DPTT and 1-2 parts of an anti-aging agent KY-405. The hollow nano silicon dioxide microspheres and the like are adopted as filler so that the material heat conduction coefficient can be reduced and meanwhile the materials are reinforced. The iron oxide, the tungsten oxide and the like serve as an oxidizing agent to be matched with pentaerythritol ester of hydrogenated rosin to be used, the high-temperature using temperature of the materials can be increased, the long-term using temperature can reach 250-300 DEG C, the ageing resistance of the materials can be improved as well, and the service life of the materials is greatly prolonged.

Description

technical field [0001] The invention relates to a silicone rubber material and a preparation method thereof, in particular to a high temperature resistant and aging resistant silicone rubber material for a frame of a battery heat insulation film and a preparation method thereof. Background technique [0002] The thermal insulation film of the battery plays the role of heat insulation and flame retardant, and the purpose is to protect the battery cells of the battery box. Now more and more power battery PCAK manufacturers have begun to use thermal insulation film to protect the battery inside the battery box. On the one hand, it saves costs and facilitates after-sales maintenance. The thermal insulation film is a square sheet, which is just sandwiched between the battery modules. between. The battery insulation film structure is made of high-silica glass fiber cloth, intermediate pre-oxygen silk aerogel felt, and high-temperature vulcanization of silicone rubber frame. With...

AI Technical Summary

Problems solved by technology

With the rapid development of the battery industry, the performance requirements of the silicone rubber material for the battery heat insulation film frame are getting higher and higher. The high temperature resistance and aging resistance of the silicone rubber material for the battery heat insulation film frame on the market can no longer be satisfied. market demand

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