Preparation method of multilayer capacitor film modified by plasma
A plasma and multi-layer capacitor technology, applied in the field of capacitor film, can solve the problems of deteriorating the mechanical processing performance of the polymer matrix, weakening the flexibility of electronic energy storage devices, etc., and achieves high material rigidity, good optics and printability, and low loss. Effect
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[0021] The present invention provides a method of preparing a multilayer capacitive film utilizing plasma, including the steps of:
[0022] S1 adds LDPE and nano silica-nano-titanate complex to the twin screw extruder through a co-mixed blended parental particles;
[0023] The S2 composite filler masterbatch and pure PE particles are refined, hot pressing sheets, to obtain sheets, and then superimpose the sheet in the form of abab in the form of ABAB.
[0024] S3 blocks the heat after S2 is bireten, the plasma treatment obtains a multilayer capacitive film modified by plasma;
[0025] The process of plasma treatment is that the modified gas includes tetrafluoride and oxygen, the radio frequency power is 100 W, the treatment time is 90s, the discharge time is 15s, the interval is 10s.
[0026] In the present invention, LDPE, Dow Chemical Production, License XUS 59910.08, Density 0.926g / cm 3 The melt index was 1.7 g / 10min (190 ° C, 2.16 kg).
[0027] In the present invention, th...
Embodiment 1
[0050] The preparation method of multilayer capacitive film modified by plasma is included, including the following steps:
[0051] (1) Configuring a spinning liquid (nanosoxiloxide accounts for 5% of the total weight of nano-silica-nano-nanotanotate complex)
[0052] 13.5 g of acetic acid was added to the flask with disposable dropper, and the flask was placed in a collecting constant temperature heating magnetic stirrer to heat it for 10 min, and the temperature of the acetic acid reached the desired 40 ° C; the purpose of adding acetic acid is to slow down hydrolysis ;
[0053] 22.55 g of the heating of hot acetic acid in stirring was added to the 40 ° C water bath, so that the chickens were dissolved at a acetate;
[0054] 31.5 g of acetylacetone was added to the flask in 2, stirred at a 40 ° C water bath, stirred for 30 min, so that the acetyl acetone was sufficiently mixed with the solution.
[0055] 42.88 g of tetral titanate and 4.5 g of anhydrous ethanol were added to the...
Embodiment 2
[0070] The difference from the first embodiment is that the ratio of the spinning liquid is different, so that the nano-silica accounts for 15% of the nano-silica-nano-titanate compound. Specifically, 18 g of acetic acid, 5.16 g of acetate, 2.022 g of acetylacetone, tetrabutyate 6.91 g of titanate, 11.675 g of anhydrous ethanol, 0.699 g of nano-titanium dioxide, and polyvinylpyridone 4.223 g.
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