Preparation method of power bank rubber sheath with good thermal conductivity
A technology of rubber sheath and charging treasure, which is applied in the field of charging treasure, which can solve problems such as easy slippage, charging treasure hitting the ground, and charging treasure slipping, etc., and achieves the effects of good heat resistance stability, lower internal temperature, and normal use
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Embodiment 1
[0018] A method for preparing a power bank rubber sheath with good thermal conductivity, comprising the steps of:
[0019] S1, 120kg fluorosilicone rubber, 80kg butyl rubber, 50kg chlorosulfonated polyethylene, 60kg potassium titanate whiskers, 10kg graphene, 40kg mica powder, 35kg talcum powder, 25kg montmorillonite, 4kg acetyl tributyl citrate Stir the ester and 6kg epoxy soybean oil, adjust the temperature to 80°C, and leave it in vacuum for 40min to obtain the mixed material;
[0020] S2. Heat 200kg of mixed material to 140°C, let it stand for 10min, add 4kg of tert-butyl hydroperoxide, 1.5kg of accelerator TMTM, 5kg of anti-aging agent, thin pass 4 times, vulcanize once at 180°C for 5 minutes, and then 2 times at 200°C Vulcanize for 10 minutes to obtain a power bank rubber sheath with good thermal conductivity.
[0021] The working temperature of the product in this example is -20~95°C, aging in hot air at a temperature of 120±2°C×168h, the retention rate of its resistan...
Embodiment 2
[0023] A method for preparing a power bank rubber sheath with good thermal conductivity, comprising the steps of:
[0024] S1, 140kg fluorosilicone rubber, 70kg butyl rubber, 60kg chlorosulfonated polyethylene, 40kg potassium titanate whiskers, 20kg graphene, 30kg mica powder, 45kg talcum powder, 15kg montmorillonite, 8kg acetyl tributyl citrate Stir the ester and 4kg epoxy soybean oil, adjust the temperature to 90°C, and leave it in vacuum for 30min to obtain the mixed material;
[0025] S2. Heat 220kg of the mixed material to 130°C, let it stand for 20min, add 2kg of tert-butyl hydroperoxide, 2.5kg of accelerator TMTM, 3kg of anti-aging agent, thin pass 6 times, vulcanize once at 170°C for 15 minutes, and then twice at 190°C Vulcanize for 20 minutes to obtain a power bank rubber sheath with good thermal conductivity.
[0026] The working temperature of the product in this example is -20~95°C, aging in hot air at a temperature of 120±2°C×168h, the retention rate of its resis...
Embodiment 3
[0028] A method for preparing a power bank rubber sheath with good thermal conductivity, comprising the steps of:
[0029] S1, 125kg fluorosilicone rubber, 77kg butyl rubber, 52kg chlorosulfonated polyethylene, 55kg potassium titanate whiskers, 12kg graphene, 38kg mica powder, 38kg talcum powder, 22kg montmorillonite, 5kg acetyl tributyl citrate Stir the ester and 5.5kg epoxy soybean oil, adjust the temperature to 82°C, and leave it in vacuum for 38min to obtain the mixed material;
[0030] S2. Heat 205kg of mixed material to 138°C, let it stand for 12min, add 3.5kg of tert-butyl hydroperoxide, 1.8kg of accelerator TMTM, 4.5kg of anti-aging agent, thin pass 4 times, vulcanize once at 178°C for 8 minutes, then 198°C After secondary vulcanization for 12 minutes, a power bank rubber sheath with good thermal conductivity was obtained.
[0031] The working temperature of the product in this example is -20~95°C, and it is aged in hot air at a temperature of 120±2°C×168h. The retent...
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