Fluorine efficient finishes for textiles
A technology for finishing agents and fabrics, applied in fiber treatment, textiles and papermaking, liquid-repellent fibers, etc., can solve problems such as fluorination efficiency that has not been disclosed or implied
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Embodiment 1
[0079] First, (a) 219.4g has the formula: CF 3 CF 2 (CF 2 ) x C 2 h 4 OC(O)-C(H)=CH 2 The fluorine-containing monomers, wherein x=6, 8, 10, 12, 14, 16 and 18, each relative amount is about 3%, 50%, 31%, 10%, 3%, 2% and 1%, so The monomers have a weight average molecular weight of 569; (b) 60.1 g octadecyl methacrylate; (c) 3 g (2 parts by weight) 2-hydroxyethyl methacrylate; (d) 5.7 g poly(oxyethylene) 7 methacrylate; (e) 5.7 g N-methylol-acrylamide; 1.5 g lauryl mercaptan, 40 g Dowanol DPMA (dipropylene glycol methyl ether acetate) (Dow Chemical, Midland, MI), 28 g Tergitol 15-S-20 (UnionCarbide, Danbury, CT), 14g Arquad 16 / 29 (Akzo-Nobel, McCook, IL) and 619.5g water were emulsified, then added to a tank equipped with a stirrer, thermocouple thermometer and dry ice or water condensation in a four-necked flask. Next, (f) 6 g of vinylidene chloride was added to the emulsion. The feed was purged with nitrogen for 30 minutes at 40°C. Then, 1.6 g of "VAZO" 52WSP (E.I. d...
Embodiment 2
[0088] The procedure of Example 1 was followed except that Ethoquad 18 / 25 (Akzo-Nobel, McCook, IL) was used as the surfactant.
Embodiment 3
[0097] The fabric was treated with the polymer emulsion prepared in Example 1 with blocked isocyanate (0.15% owb) and softener (0.04% owb) at 0.65% based on bath weight (owb). The fabric repellency test was performed using the test method described above and retested after several wash cycles. The results are shown in Table 5 below.
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