Aqueous polymer dispersion composition and surface treatment agent
A water-based dispersion and composition technology, which is applied in fiber treatment, textiles, papermaking, coating, etc., can solve the problems of water and oil repellency reduction, and achieve the effect of good touch and excellent water and oil repellency
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[0283] The following Preparations and Examples further illustrate the present invention in detail, but they should not be construed as limiting the scope of the present invention. All parts and percentages in the examples are by weight and all measurements were made at about 23°C unless otherwise indicated.
[0284] Spray water repellency test (JIS-L-1092)
[0285] The spray water repellency test was performed according to JIS-L-1092. The spray repellency is indicated by the water repellency number (as shown in Table 1 below).
[0286] Use a glass funnel with a volume of at least 250ml and a nozzle that can spray 250ml of water in 20-30 seconds. The specimen support is a metal support with a diameter of 15 cm. Three test pieces having a size of about 20 cm x 20 cm were prepared, and the sheets were mounted on a test piece holding frame so that the sheets were free from wrinkles. Set the center of the shower over the center of the sheet. Pour room temperature water (250 ...
Synthetic example 1
[0326] Add n-BA (84.31g), N-MAM (1.69g), T-M (0.84g), L-SH (0.62g), C2ABT (1.01g), PP-40R (1.35g), K220 (5.85g), BO50 (1.45g), water (138.13g) and TPG (24.88g). The mixture was previously mixed by a homomixer and then treated in a ultrasonic emulsifier for 5 minutes to provide an emulsion of the monomer mixture.
[0327] The monomer emulsion was added to a 500 mL separable flask equipped with a condenser, nitrogen line, and thermometer. The atmosphere in the flask was replaced with nitrogen, and a water (5 g) solution of an initiator (NC-32W, 1.02 g) was added. The mixture was heated to 60° C., and polymerized for 3 hours to provide a dispersion (256.4 g) of fluorine-free polymer particles having a solid content of 36.9% by weight and an average particle diameter of 0.182 μm.
Synthetic example 2～25
[0329] The monomer mixtures shown in Tables 3 to 8 were made in a similar manner to Synthesis Example 1. Polymerization was carried out in a 500 mL stainless steel autoclave using VCl as a monomer, or in a 500 mL separable flask equipped with a condenser, nitrogen line, and thermometer when not using VCl as a monomer to provide each Fluoropolymer particles or individual fluoropolymers.
[0330] table 3
[0331]
[0332] Table 4
[0333]
[0334] table 5
[0335]
[0336] Table 6
[0337]
Synthesis Example 16
Synthesis Example 17
Synthesis Example 18
13FMA
17.15
17FA
17.46
16.23
StA
2.27
2.15
2.20
VCl
5.69
4.43
4.47
N-MAM
0.56
0.52
0.41
T-M
0.14
0.13
0.14
Si-SH
2.43
2.70
L-SH
0.14
0.10
0.14
TPG
7.81
7.31
7.55
pure water
61.35
61.85
...
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