Super-washable interior wall coating free of color fading and gloss loss during wet rubbing and preparation method of super-washable interior wall coating
A technology for interior wall coatings and wet rubbing, applied in the direction of coating, etc., can solve the problems of paint film wet rubbing resistance decline, loss of gloss, easy to fade, etc., to achieve excellent wet rubbing resistance and good wet rubbing resistance
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[0052] In one example, the preparation method of silicone acrylic emulsion comprises the following steps:
[0053]
[0054] Pre-emulsified monomer: Add hard monomer, soft monomer and 3 / 4 reactive emulsifier to deionized water in sequence, raise the temperature to 69-71°C, stir for 0.5h, and prepare pre-emulsified monomer;
[0055] Synthesis of organosilicon intermediates containing reactive double bonds: add the catalyst and the remaining 1 / 4 of the reactive emulsifier to deionized water, raise the temperature to 79-81°C, add octamethylcyclotetrasiloxane, and react for 2 hours, Add vinyltrimethoxysilane dropwise and react at 79-81°C for 1 hour to obtain an organosilicon intermediate containing a reactive double bond;
[0056] Synthesizing the seed emulsion: mixing deionized water and 1 / 10 of the pre-emulsified monomer, raising the temperature to 79-81°C, adding 1 / 4 of the initiator, initiating polymerization, and obtaining the seed emulsion;
[0057] Raise the temperature ...
Embodiment 1
[0106] This embodiment provides a super water-resistant interior wall paint that does not fade or lose gloss when rubbed wet, which includes the raw materials shown in Table 1 below.
[0107] Table 1
[0108]
[0109]
[0110] The preparation method is as follows:
[0111] (1) Add the water and hydroxyethyl cellulose of Table 1 parts by weight into the stirring tank and stir to disperse, then add the dispersant, wetting agent, film-forming aid, defoamer, antifreeze and pH regulator successively and stir evenly;
[0112] (2) Add titanium dioxide, heavy calcium, and wollastonite in parts by weight of Table 1 in sequence to the stirring tank, and disperse at high speed (1600r / min) until the fineness is less than 60 μm;
[0113] (3) Add the silicone acrylic emulsion, wax emulsion, preservative, thickener, covering polymer and antifungal agent in Table 1 in order by weight into the reactor, and stir at a medium speed (800r / min) to obtain the finished product.
Embodiment 2
[0115] This embodiment provides a super water-resistant interior wall paint that does not fade or lose gloss when rubbed wet, which includes the raw materials shown in Table 2 below.
[0116] Table 2
[0117] raw material model Dosage (parts by weight) water Deionized water 25 Hydroxyethyl cellulose Ashland plus 330 0.25 Dispersant Gaotai P30 0.45 D Dow EH-9 0.1 Coalescent OE300 2 Defoamer Nopco NXZ 0.3 antifreeze Propylene Glycol 1.4 PH regulator AMP-95 0.1 Titanium dioxide Dongjia SR-237 1.2 heavy calcium Henry up to 1250 mesh 10 wollastonite Kurt KT-0018 10 Silicone acrylic emulsion self made 40 wax emulsion self made 3 preservative LXE 0.25 thickener Wanhua U300 0.7 covering polymer Dow Ultra E 5 antifungal agent Troy PW40 0.25 total / 100
[0118] The preparation method is as follows:
[0119] (1) Add the water and...
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