CN104086813A - Filling material special for ultraviolet-resistant capacitor thin film and preparation method of filling material - Google Patents

Abstract

The invention discloses a filling material special for an ultraviolet-resistant capacitor thin film. The filling material is prepared from the following raw materials in parts by weight: 1.2-1.4 parts of dioctyl phthalate, 1.2-1.4 parts of dibutyl phthalate, 3-4 parts of calcium carbonate, 0.4-0.7 part of sodium alginate, 1.2-1.4 parts of fatty acid amine, 0.4-0.7 part of sodium hexametaphosphate, 3-4 parts of nano zinc oxide, 0.2-0.3 part of coconut fatty acid, 2-3 parts of lithopone, 8-12 parts of titanium dioxide, 55-60 parts of clay, a proper amount of 4-6% hydrochloric acid, a proper amount of water and 15-20 parts of additives. According to the filling material disclosed by the invention, by adopting nano zinc oxide and titanium dioxide, the ultraviolet-resistant performance of the thin film can be improved, the aging resistance can be achieved, the reinforcement performance of the filling material can be improved, and the compactness, strength and toughness of the thin film can be increased; by adopting the clay, the cost can be reduced; by adopting the additives, the dispersion performance and reinforcement performance of the filling material can be increased, and the strength and impact toughness of the thin film can be improved.

Description

A kind of uvioresistant capacitor film filler special and preparation method thereof

Technical field

The invention belongs to capacitor film field, particularly a kind of uvioresistant capacitor film filler special and preparation method thereof.

Background technology

Film capacitor, owing to having a lot of good characteristics, is therefore the outstanding electrical condenser of a kind of performance.Its property such as main is as follows: nonpolarity, insulation impedance is very high, frequency response characteristic excellent (frequency response is broad), and also dielectric loss is very little.Advantage based on above, so film capacitor is used on mimic channel in a large number.Especially in the part of signal commissure, necessary frequency of utilization characteristic is good, and the electrical condenser that dielectric loss is extremely low can guarantee that signal is when transmitting, and does not have too large distortion situation and occurs.

In the middle of all plastics film electric capacity, the characteristic of polypropylene (PP) electric capacity and polystyrene (PS) electric capacity is the most remarkable, thus in recent years PP electric capacity and PS electric capacity to be used in frequency and the quantity of sound appliances also more and more high.Simple polypropylene (PP) is although that film has is heat-resisting, corrosion-resistant, the outstanding advantages of goods used vapour sterilization, and also density is little, is the lightest general-purpose plastics; But it exists low-temperature impact resistance poor, easy aging shortcoming.Polystyrene (PS) film has high transparency, and electrical insulation capability is good, easy coloring, and processing fluidity is good, and good rigidly and chemical resistance are good, but more crisp, and shock strength is low, is prone to stress cracking, poor heat resistance and not resistance to boiling water; Therefore need to carry out modification to film.And along with the range of application of electrical condenser increases gradually, the performance of film also needs to improve, such as heat-resisting, low temperature resistant, acid and alkali-resistance, corrosion-resistant, intensity, ageing-resistant, UV resistant, fire-retardant, wear-resisting, toughness, the performance need such as shock-resistant improve, can be by adding the filler modified performance of improving.

Summary of the invention

The object of the present invention is to provide a kind of uvioresistant capacitor film filler special and preparation method thereof, this filler can improve the anti-ultraviolet property of film, anti-aging, and improved the reinforcing property of filler, can increase compactness, intensity and the toughness of film; By adding; By using clay, reduced cost.

Technical scheme of the present invention is as follows:

A uvioresistant capacitor film filler special, is characterized in that being made by the raw material of following weight part: dioctyl ester 1.2-1.4, phthalic acid dibutyl ester 1.2-1.4, calcium carbonate 3-4, sodium alginate 0.4-0.7, fatty acid amine 1.2-1.4, Sodium hexametaphosphate 99 0.4-0.7, nano zine oxide 3-4, fatty acid distribution of coconut oil 0.2-0.3, zinc sulfide white 2-3, titanium dioxide 8-12, clay 55-60,4-6% hydrochloric acid is appropriate, water appropriate, auxiliary agent 15-20;

Described auxiliary agent is made by the raw material of following weight parts: montmorillonite 2-3,2-3% sodium hydroxide solution 12-16, polyisobutene 0.5-0.8, aluminium triphosphate 0.7-0.9, bisphenol A epoxy acrylate 1-2, Xylitol 0.4-0.7, pure aluminium silicate 3-5, fatty alcohol-polyoxyethylene ether 0.1-0.2, calcium sulfate crystal whiskers 7-9, black silicon carbide 2-4, Yatall MA 0.4-0.6, Oleum Bupleuri 0.5-0.8, ammonium persulphate 0.1-0.2, water are appropriate; Preparation method is: montmorillonite mixes with 2-3% sodium hydroxide solution, is heated to 70-80 ℃, and stirring reaction 20-30 minute filters, and obtains filter residue, and being washed to pH is 7-8, and ovendry power is broken into the particle of 2-50 μ m; Again fatty alcohol-polyoxyethylene ether, Xylitol are added in suitable quantity of water, add again described montmorillonite particle, pure aluminium silicate, after stirring, add polyisobutene, bisphenol A epoxy acrylate, Yatall MA, Oleum Bupleuri, after stirring, be warming up to 80-90 ℃, add ammonium persulphate, stirring reaction 20-30 minute, then add calcium sulfate crystal whiskers, black silicon carbide, continue stirring reaction 30-40 minute, dry, mix with other remaining components, dispersion grinding becomes the particle of 2-50 μ m, obtains.

The preparation method of described uvioresistant capacitor film filler special, is characterized in that comprising the following steps:

(1) clay is sent in calcining furnace, at 700-800 ℃, calcined 2-3 hour, take out and pulverize, cross 100 mesh sieves, then add 2-3 4-6% hydrochloric acid doubly, be heated to 50-70 ℃, stir 10-20 minute, filter, obtain filter residue, pickling once, then is washed to neutrality more as stated above, filters, and obtains particle;

(2) zinc sulfide white, titanium dioxide, dioctyl ester, phthalic acid dibutyl ester, calcium carbonate, sodium alginate, fatty acid amine, Sodium hexametaphosphate 99 are mixed, grind 20-30 minute, obtain mixture;

(3) material (1) step and (2) step being obtained mixes with nano zine oxide, fatty acid distribution of coconut oil, adds suitable quantity of water to stir into mud shape, grinds to form the slurry of 2-50 μ m, and spraying is dry, then mixes with other remaining components, obtains.

Beneficial effect of the present invention

Filler of the present invention has been used nano zine oxide, titanium dioxide, can improve the anti-ultraviolet property of film, anti-aging, and has improved the reinforcing property of filler, can increase compactness, intensity and the toughness of film; By adding; By using clay, reduced cost; The application of the invention auxiliary agent, can improve dispersiveness, the reinforcing property of filler, can improve thin film strength and tough.

Embodiment

A uvioresistant capacitor film filler special, by following weight part (kilogram) raw material make: dioctyl ester 1.3, phthalic acid dibutyl ester 1.3, calcium carbonate 3.5, sodium alginate 0.6, fatty acid amine 1.3, Sodium hexametaphosphate 99 0.5, nano zine oxide 3.5, fatty acid distribution of coconut oil 0.2, zinc sulfide white 2.4, titanium dioxide 10, clay 58,5% hydrochloric acid are appropriate, water appropriate, auxiliary agent 17;

Described auxiliary agent by following weight parts (kilogram) raw material make: montmorillonite 2 .5,2.5% sodium hydroxide solution 14, polyisobutene 0.7, aluminium triphosphate 0.8, bisphenol A epoxy acrylate 1.5, Xylitol 0.5, pure aluminium silicate 4, fatty alcohol-polyoxyethylene ether 0.1, calcium sulfate crystal whiskers 8, black silicon carbide 3, Yatall MA 0.5, Oleum Bupleuri 0.7, ammonium persulphate 0.1, water are appropriate; Preparation method is: montmorillonite mixes with 2.5% sodium hydroxide solution, is heated to 75 ℃, and stirring reaction 25 minutes filters, and obtains filter residue, and being washed to pH is 8, and ovendry power is broken into the particle of 2-50 μ m; Again fatty alcohol-polyoxyethylene ether, Xylitol are added in suitable quantity of water, add again described montmorillonite particle, pure aluminium silicate, after stirring, add polyisobutene, bisphenol A epoxy acrylate, Yatall MA, Oleum Bupleuri, after stirring, be warming up to 85 ℃, add ammonium persulphate, stirring reaction 25 minutes, then add calcium sulfate crystal whiskers, black silicon carbide, continue stirring reaction 35 minutes, dry, mix with other remaining components, dispersion grinding becomes the particle of 2-50 μ m, obtains.

The preparation method of described uvioresistant capacitor film filler special, comprises the following steps:

(1) clay is sent in calcining furnace, at 750 ℃, calcined 2.5 hours, take out and pulverize, cross 100 mesh sieves, then add 5% hydrochloric acid of 2.5 times, be heated to 60 ℃, stir 15 minutes, filter, obtain filter residue, pickling once, then is washed to neutrality more as stated above, filters, and obtains particle;

(2) zinc sulfide white, titanium dioxide, dioctyl ester, phthalic acid dibutyl ester, calcium carbonate, sodium alginate, fatty acid amine, Sodium hexametaphosphate 99 are mixed, grind 25 minutes, obtain mixture;

(3) material (1) step and (2) step being obtained mixes with nano zine oxide, fatty acid distribution of coconut oil, adds suitable quantity of water to stir into mud shape, grinds to form the slurry of 3 μ m, and spraying is dry, then mixes with other remaining components, obtains.

Experimental data: the filler of the present embodiment is added in polypropylene capacitor film, and addition is 10-15%, film thickness is 2-50 μ m, film breakdown magnitude of voltage >=0.60kV/ μ m(100 ℃).

Claims (2)

1. a uvioresistant capacitor film filler special, is characterized in that being made by the raw material of following weight part: dioctyl ester 1.2-1.4, phthalic acid dibutyl ester 1.2-1.4, calcium carbonate 3-4, sodium alginate 0.4-0.7, fatty acid amine 1.2-1.4, Sodium hexametaphosphate 99 0.4-0.7, nano zine oxide 3-4, fatty acid distribution of coconut oil 0.2-0.3, zinc sulfide white 2-3, titanium dioxide 8-12, clay 55-60,4-6% hydrochloric acid is appropriate, water appropriate, auxiliary agent 15-20;

Described auxiliary agent is made by the raw material of following weight parts: montmorillonite 2-3,2-3% sodium hydroxide solution 12-16, polyisobutene 0.5-0.8, aluminium triphosphate 0.7-0.9, bisphenol A epoxy acrylate 1-2, Xylitol 0.4-0.7, pure aluminium silicate 3-5, fatty alcohol-polyoxyethylene ether 0.1-0.2, calcium sulfate crystal whiskers 7-9, black silicon carbide 2-4, Yatall MA 0.4-0.6, Oleum Bupleuri 0.5-0.8, ammonium persulphate 0.1-0.2, water are appropriate; Preparation method is: montmorillonite mixes with 2-3% sodium hydroxide solution, is heated to 70-80 ℃, and stirring reaction 20-30 minute filters, and obtains filter residue, and being washed to pH is 7-8, and ovendry power is broken into the particle of 2-50 μ m; Again fatty alcohol-polyoxyethylene ether, Xylitol are added in suitable quantity of water, add again described montmorillonite particle, pure aluminium silicate, after stirring, add polyisobutene, bisphenol A epoxy acrylate, Yatall MA, Oleum Bupleuri, after stirring, be warming up to 80-90 ℃, add ammonium persulphate, stirring reaction 20-30 minute, then add calcium sulfate crystal whiskers, black silicon carbide, continue stirring reaction 30-40 minute, dry, mix with other remaining components, dispersion grinding becomes the particle of 2-50 μ m, obtains.

2. the preparation method of uvioresistant capacitor film filler special according to claim 1, is characterized in that comprising the following steps:

(1) clay is sent in calcining furnace, at 700-800 ℃, calcined 2-3 hour, take out and pulverize, cross 100 mesh sieves, then add 2-3 4-6% hydrochloric acid doubly, be heated to 50-70 ℃, stir 10-20 minute, filter, obtain filter residue, pickling once, then is washed to neutrality more as stated above, filters, and obtains particle;

(2) zinc sulfide white, titanium dioxide, dioctyl ester, phthalic acid dibutyl ester, calcium carbonate, sodium alginate, fatty acid amine, Sodium hexametaphosphate 99 are mixed, grind 20-30 minute, obtain mixture;

(3) material (1) step and (2) step being obtained mixes with nano zine oxide, fatty acid distribution of coconut oil, adds suitable quantity of water to stir into mud shape, grinds to form the slurry of 2-50 μ m, and spraying is dry, then mixes with other remaining components, obtains.