Waterproof material for electronic controller and preparation method thereof

Abstract

The invention discloses waterproof material for an electronic controller and a preparation method thereof. The waterproof material is prepared from the following composition in weight percentage: 10%to 16% of pure acrylic emulsion, 12% to 20% of hydrophilic nano silicon dioxide, 1.2% to 2.8% of waterborne plastic quick-dry emulsion, 5% to 15% anhydrous sodium sulfite, 2.5% to 6.9% of mica titanium pearl powder, 1.5% to 3.2% of C18 fatty alcohol, 0.2% to 0.6% of phenol reagent and the rest of deionized water. The waterproof coating disclosed by the invention is prepared from the pure acrylic emulsion, the hydrophilic nano silicon dioxide, the waterborne plastic quick-dry emulsion, the anhydrous sodium sulfite, the mica titanium pearl powder and the C18 fatty alcohol according to a specificproportion; the waterproof coating has a stronger waterproof function; furthermore, the coating has no color, transparency and good coating performance; all the ingredients are non-toxic ingredients.The waterproof coating disclosed by the invention can be directly covered to mobile phone circuit boards or mobile phone casings in coating modes of brush coating, spray coating and the like, so thatwaterproof and dustproof effects are achieved; the waterproof coating has the advantages of simple preparation technology and simpleness and convenience in operation; production cost of mobile phoneproduct is reduced.

Description

technical field

[0001] The invention relates to a waterproof material for an electronic controller and a preparation method thereof. Background technique

[0002] With the development of society, the advancement of science and technology, and the gradual expansion of the mobile phone market, the performance requirements of consumers for mobile phones are also constantly improving. While mobile phones are becoming more functional and intelligent, they are beginning to pursue humanization, such as waterproofing. Due to the continuous development of functionalization and intelligence on mobile phones, consumers can play with mobile phones anytime and anywhere. They use mobile phones when driving, walking, eating, working, and even when going to the toilet and bathing. However, when taking a shower or going to the toilet, the mobile phone is accidentally dropped into the toilet or sink, so that the mobile phone will enter the water, causing the mobile phone to be short-circuite...

Examples

Embodiment 1

[0023] Embodiment 1. Weigh 10kg of pure acrylic emulsion, then slowly add it into a reaction kettle filled with appropriate deionized water through an automatic feeding system, and stir fully. The stirring temperature is 40 degrees, and the stirring pressure is 1.2Mpa. Stir The time was 10 minutes, and the stirring speed was 45 rpm;

[0024] Then take by weighing 12kg of hydrophilic nano silicon dioxide, 1.2kg of water-based plastic quick-drying emulsion, 5kg of anhydrous sodium sulfite, 2.5kg of isopropyl n-sulfide, 0.2kg of phenol reagent, 1.5% kg of octadecyl Carbofatty alcohol and appropriate deionized water, and fully stirred, the stirring temperature is 30 degrees, the stirring air pressure is 2.2Mpa, the stirring time is 15 minutes, and the stirring speed is 55 rpm;

[0025] Finally, start the diaphragm pump, circulate the prepared mixture through a 0.2um filter for 2 hours, and then filter through a 0.12μm filter to remove harmful particles with a particle size greater...

Embodiment 2

[0027] Embodiment 2. Weigh 13kg of pure acrylic emulsion, then slowly add it into a reaction kettle filled with appropriate deionized water through an automatic feeding system, and fully stir. The stirring temperature is 50 degrees, and the stirring pressure is 1.7Mpa. Stir The time was 12 minutes, and the stirring speed was 45 rpm;

[0028] Then take by weighing 17kg of hydrophilic nano silicon dioxide, 2.2kg of water-based plastic quick-drying emulsion, 10kg of anhydrous sodium sulfite, 4.5kg of isopropyl n-sulfide, 0.4kg of phenol reagent, 2.5% kg of octadecyl Carbofatty alcohol and appropriate deionized water, and fully stirred, the stirring temperature is 35 degrees, the stirring air pressure is 2.9Mpa, the stirring time is 20 minutes, and the stirring speed is 65 rpm;

[0029] Finally, start the diaphragm pump, circulate the prepared mixture through a 0.2um filter for 2.5 hours, and then filter through a 0.12μm filter to remove harmful particles with a particle size grea...

Embodiment 3

[0031] Example 3. Weigh 16kg of pure acrylic emulsion, then slowly add it into a reaction kettle filled with appropriate deionized water through an automatic feeding system, and fully stir. The stirring temperature is 60 degrees, and the stirring pressure is 2.3Mpa. Stir The time was 15 minutes, and the stirring speed was 45 rpm;

[0032] Then take by weighing 20kg of hydrophilic nano silicon dioxide, 2.8kg of water-based plastic quick-drying emulsion, 15kg of anhydrous sodium sulfite, 6.9kg of isopropyl n-sulfide, 0.6kg of phenol reagent, 3.2% kg of octadecyl Carbofatty alcohol and appropriate deionized water, and fully stirred, the stirring temperature is 40 degrees, the stirring air pressure is 3.3Mpa, the stirring time is 25 minutes, and the stirring speed is 75 rpm;

[0033] Finally, start the diaphragm pump, circulate the prepared mixture through a 0.2um filter for 3 hours, and then filter through a 0.12μm filter to remove harmful particles with a particle size greater t...

technical field

[0001] The invention relates to a waterproof material for an electronic controller and a preparation method thereof. Background technique

[0002] With the development of society, the advancement of science and technology, and the gradual expansion of the mobile phone market, the performance requirements of consumers for mobile phones are also constantly improving. While mobile phones are becoming more functional and intelligent, they are beginning to pursue humanization, such as waterproofing. Due to the continuous development of functionalization and intelligence on mobile phones, consumers can play with mobile phones anytime and anywhere. They use mobile phones when driving, walking, eating, working, and even when going to the toilet and bathing. However, when taking a shower or going to the toilet, the mobile phone is accidentally dropped into the toilet or sink, so that the mobile phone will enter the water, causing the mobile phone to be short-circuite...

Examples

Embodiment 1

[0023] Embodiment 1. Weigh 10kg of pure acrylic emulsion, then slowly add it into a reaction kettle filled with appropriate deionized water through an automatic feeding system, and stir fully. The stirring temperature is 40 degrees, and the stirring pressure is 1.2Mpa. Stir The time was 10 minutes, and the stirring speed was 45 rpm;

[0024] Then take by weighing 12kg of hydrophilic nano silicon dioxide, 1.2kg of water-based plastic quick-drying emulsion, 5kg of anhydrous sodium sulfite, 2.5kg of isopropyl n-sulfide, 0.2kg of phenol reagent, 1.5% kg of octadecyl Carbofatty alcohol and appropriate deionized water, and fully stirred, the stirring temperature is 30 degrees, the stirring air pressure is 2.2Mpa, the stirring time is 15 minutes, and the stirring speed is 55 rpm;

[0025] Finally, start the diaphragm pump, circulate the prepared mixture through a 0.2um filter for 2 hours, and then filter through a 0.12μm filter to remove harmful particles with a particle size greater...

Embodiment 2

[0027] Embodiment 2. Weigh 13kg of pure acrylic emulsion, then slowly add it into a reaction kettle filled with appropriate deionized water through an automatic feeding system, and fully stir. The stirring temperature is 50 degrees, and the stirring pressure is 1.7Mpa. Stir The time was 12 minutes, and the stirring speed was 45 rpm;

[0028] Then take by weighing 17kg of hydrophilic nano silicon dioxide, 2.2kg of water-based plastic quick-drying emulsion, 10kg of anhydrous sodium sulfite, 4.5kg of isopropyl n-sulfide, 0.4kg of phenol reagent, 2.5% kg of octadecyl Carbofatty alcohol and appropriate deionized water, and fully stirred, the stirring temperature is 35 degrees, the stirring air pressure is 2.9Mpa, the stirring time is 20 minutes, and the stirring speed is 65 rpm;

[0029] Finally, start the diaphragm pump, circulate the prepared mixture through a 0.2um filter for 2.5 hours, and then filter through a 0.12μm filter to remove harmful particles with a particle size grea...

Embodiment 3

[0031] Example 3. Weigh 16kg of pure acrylic emulsion, then slowly add it into a reaction kettle filled with appropriate deionized water through an automatic feeding system, and fully stir. The stirring temperature is 60 degrees, and the stirring pressure is 2.3Mpa. Stir The time was 15 minutes, and the stirring speed was 45 rpm;

[0032] Then take by weighing 20kg of hydrophilic nano silicon dioxide, 2.8kg of water-based plastic quick-drying emulsion, 15kg of anhydrous sodium sulfite, 6.9kg of isopropyl n-sulfide, 0.6kg of phenol reagent, 3.2% kg of octadecyl Carbofatty alcohol and appropriate deionized water, and fully stirred, the stirring temperature is 40 degrees, the stirring air pressure is 3.3Mpa, the stirring time is 25 minutes, and the stirring speed is 75 rpm;

[0033] Finally, start the diaphragm pump, circulate the prepared mixture through a 0.2um filter for 3 hours, and then filter through a 0.12μm filter to remove harmful particles with a particle size greater t...

Images