Special packing for antistatic flame-retardant capacitor film and preparation method of packing

Abstract

The invention provides special packing for an antistatic flame-retardant capacitor film. The special packing comprises the following raw materials of, by weight, 10-15 parts of isotatic polypropylene, 2-3 parts of graphene nanoplatelets, 15-20 parts of magnesium hydrate, 3-5 parts of sodium molybdate, 2-3 parts of sodium orthophosphate, 2-3 parts of hydrogenated tallow amine, 3-4 parts of polyethylene wax, 2-3 parts of sasol wax, 2-3 parts of perfluoroalkylethyl acrylate, 50-55 parts of municipal sludge, a proper amount of 5-7% muriatic acid, a proper amount of water and 15-20 parts of additives. The hydrogenated tallow amine is added to the packing, and therefore the film has the antistatic effect and is good in anti-puncturing performance; the magnesium hydrate is added, and therefore the film has an excellent flame retardant property; the perfluoroalkylethyl acrylate is added, and therefore the anti-pollution performance of the film is enhanced; the municipal sludge is used, therefore, the cost is reduced, the fineness is high, and the reinforcement performance is good; the additives are used, therefore, the dispersibility and the reinforcement performance of the packing can be improved, and the strength and the impact toughness of the film can be improved.

Description

technical field [0001] The invention belongs to the field of capacitor films, in particular to a special filler for antistatic and flame-resistant capacitor films and a preparation method thereof. Background technique [0002] Film capacitors are excellent capacitors due to their many excellent characteristics. Its main characteristics are as follows: non-polarity, high insulation resistance, excellent frequency characteristics (broad frequency response), and low dielectric loss. Based on the above advantages, film capacitors are widely used in analog circuits. Especially in the part where the signals are cross-connected, capacitors with good frequency characteristics and extremely low dielectric loss must be used to ensure that the signal will not be distorted when it is transmitted. [0003] Among all plastic film capacitors, polypropylene (PP) capacitors and polystyrene (PS) capacitors have the most prominent characteristics, so in recent years, the frequency and quanti...

AI Technical Summary

Problems solved by technology

Although simple polypropylene (PP) film has the outstanding advantages of heat resistance and corrosion resistance, and the product can be sterilized by steam, and its density is small, it is the lightest general-purpose plastic; but it has the disadvantages of poor low temperature impact resistance and easy aging

Polystyrene (PS) film has extremely high transparency, good electrical insulation performance, easy coloring, good processing fluidity, good rigidity and good chemical corrosion resistance, but relatively brittle, low impact strength, prone to stress cracking, heat resistance Poor performance and not resistant to boiling water; therefore, the film needs to be modified