Chromium-free fingerprint-resistant coating
A fingerprint-resistant and coating technology, used in polyurea/polyurethane coatings, coatings, etc., can solve problems such as chromium pollution and environmental hazards, and achieve the effects of improving fingerprint resistance, short curing time, and improving hot sticking and cold brittleness.
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Examples
example 1
[0013] The specific composition and proportioning of a kind of preferred anti-fingerprint paint are as follows:
[0014] components
[0015] Add 600g of water-based polyurethane resin to the reaction kettle, add 70g of silicon dioxide water-based sol, 100g of water-based polytetrafluoroethylene wax slurry, and then add 20g of ethylene glycol, and then put EFTOPEF-1122g and Adeka NATE into the reaction kettle B-10195g, finally add 203g of deionized water into the reaction kettle, and continue to stir for 15 minutes to obtain the product No. 1 chrome-free anti-fingerprint coating.
example 2
[0017] The specific composition and proportion of a kind of anti-fingerprint paint are as follows:
[0018] components
[0019] Ethylene glycol
[0020] Add 1000g of water-based polyurethane resin to the reaction kettle, add 120g of silica water-based sol, 300g of water-based PTFE wax slurry while stirring, and then add 60g of ethylene glycol, and then put EFTOPEF-1122g and Adeka NATE into the reaction kettle B-10196g, finally add 500g deionized water into the reaction kettle, and continue to stir for 15 minutes to obtain the product No. 2 chrome-free anti-fingerprint coating.
example 3
[0022] The chrome-free anti-fingerprint coating prepared in example one and example two is carried out full performance test, and test result is as follows:
[0023] Numbering
project
Chromium-free anti-fingerprint paint No. 1
Chromium-free anti-fingerprint paint No. 2
indicators
1
7
10
8±3cps(25℃)
2
9
6
≤10μm
3
Solvent Composition
Deionized water
Deionized water
Deionized water
4
detergent
Deionized water
Deionized water
Deionized water
5
weight solids
23.4%
24.5%
25±2(%)
6
volume solids
24.8%
25.1%
24±2(%)
7
Wet film specific gravity
1.06
1.04
1.03±0.05
8
Dry film specific gravity
1.09
1.11
1.07±0.05
9
Dry film thickness
0.9
1.2
1±0.5μm
10
storage period
...
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