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A kind of graphene-based antistatic agent with smoke suppression function and preparation method thereof

The technology of an alkenyl anti-static agent is applied in the field of graphene-based antistatic agent with smoke suppression function and its preparation. The effect of low production cost

Active Publication Date: 2021-07-16
TAIZHOU BRT PLASTICS ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardant and smoke suppression efficiency of graphene on polymers is relatively low. Therefore, through functional modification, while endowing graphene with better flame retardant and smoke suppression effects, the dispersibility of graphene in the matrix can be improved, and the performance of antistatic materials can be improved. Mechanical properties, so as to better meet the actual needs of its engineering applications

Method used

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  • A kind of graphene-based antistatic agent with smoke suppression function and preparation method thereof
  • A kind of graphene-based antistatic agent with smoke suppression function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of graphene-based antistatic agent:

[0023] (1) Chemical reduction of graphene oxide (GO)

[0024] Add 1g GO to 100g DMF and sonicate at room temperature for 80 minutes, then add 1.6mL hydrazine hydrate and 7mL concentrated ammonia water (concentration: 28%) and mix well, then transfer to a polytetrafluoroethylene-lined autoclave, in the oven Sealed and stored, heated to 110°C for 6 hours to react; the precipitate was washed 5 times with anhydrous methanol, and then vacuum-dried to obtain the product reduced graphene (r-GO).

[0025] (2) Grafting modification reaction of reduced graphene ferrocene compounds

[0026] Add 1g of r-GO and 0.05g of diphenylmethane diisocyanate into a high-energy planetary ball mill (model: F-P2000, manufacturer: Hunan Fukas Experimental Instrument Co., Ltd.), the speed of the ball mill is 600 rpm, and dry Grind for 30 minutes under the condition of nitrogen flow rate of 10 liters / minute to prepare isocyanate-modified graphene,...

Embodiment 2

[0028] The preparation operation of reduced graphene (r-GO) is the same as step (1) in Example 1. Add 1g r-GO and 0.2g toluene diisocyanate into a high-energy planetary ball mill, the ball mill rotates at 100 rpm, and grinds for 100 minutes under the condition of a dry nitrogen flow rate of 0.1 liter / min to prepare isocyanate-modified graphene , then add 0.4g aminoferrocene, and continue to grind for 120 minutes under the condition that the flow rate of dry nitrogen is 0.1 liter / min, and the target product graphene-based antistatic agent is obtained after separation.

Embodiment 3

[0030] The preparation operation of reduced graphene (r-GO) is the same as step (1) in Example 1. Add 1g of r-GO and 0.1g of isophorone diisocyanate into a high-energy planetary ball mill at a speed of 300 rpm, and grind for 60 minutes under the condition of a dry nitrogen flow rate of 1.5 liters / min to obtain isocyanate Modified graphene, then added 0.25g hydroxymethyl ferrocene, continued grinding for 80 minutes under the condition of dry nitrogen flow rate of 1.5 liters / min, and separated to obtain the target product graphene-based antistatic agent.

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Abstract

The invention discloses a graphene-based antistatic agent with smoke-suppressing function and a preparation method thereof. The method comprises adding r-GO and a diisocyanate compound into a ball mill and grinding under the condition of passing dry nitrogen to prepare the isocyanate Modified graphene, then added ferrocene compounds, and continued grinding under the condition of passing dry nitrogen to obtain a graphene-based antistatic agent with smoke suppression function. The graphene antistatic modified PVC prepared by the present invention has the advantages of good flame retardant and smoke suppression effect, high mechanical strength, good antistatic performance, etc., which broadens the application of PVC materials in electronic appliances, green building materials, new energy vehicles, cables and other industries scope of application.

Description

technical field [0001] The invention belongs to the technical field of preparation of graphene-based antistatic agents, and in particular relates to a graphene-based antistatic agent with a smoke-suppressing function and a preparation method thereof. Background technique [0002] At present, the common method of preparing antistatic polymer materials is to add a certain amount of organic molecular antistatic agent to the polymer substrate to reduce the surface resistance and volume resistance of the polymer, increase the conductivity, and achieve the purpose of preventing charge accumulation on the product. However, due to the poor compatibility between the organic molecular antistatic agent and the matrix, it is easy to migrate, and it is easy to precipitate from the matrix during high-temperature processing and use, resulting in insufficient antistatic performance of the material. Conventional inorganic antistatic agents such as carbon black, metal powder, etc., can effect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/04C08K9/02C08K3/04C08L27/06
Inventor 黄国波方国忠
Owner TAIZHOU BRT PLASTICS ELECTRONICS
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