SU1208053A1 - Defoaming compound for aqueous media - Google Patents

Description

The invention relates to chemical technology, in particular to the creation of an antifoaming composition for aqueous media, and can be used in dyeing, printing and finishing textile materials.

. The purpose of the invention is to increase the antifoaming activity during dyeing printing and finishing textile materials.

The antifoaming composition is prepared by mixing the components until a homogeneous mass is obtained.

The foam composition as a polymethylsiloxane liquid contains a polymethylsiloxane with a specific hardening capacity of 5-250 cSt of the brand PMS-5-GOST-180-32-77, PMS-200-GOST-180-32-77, PMS-1000A ( liquid 131-86) TU-6-02-583-75. Gidrofobizirovanny aerosil of the AM-1-300 brand corresponds to TU-6-18-185- 74.

As an emulsifier, the antifoaming composition contains dodecyl-oxy (octa) -diethylene glycol, which is a mixture of ethoxylated hydrated alcohols C, 2-C | 4 with a degree of hydroxyethylation of 8-10 (DS-10 syntanol).

Example. B, a pre-weighed porcelain dish is placed 50 g of DS-10 synthanol, 25 g of urea is added and carefully rubbed. In order to obtain a homogeneous mass, we allow heating at 60-80 ° C. To another pre-weighed porcelain cup, put 905 g of PMS-UOOA, add 20 g of AM-1-300 and 75 g of the resulting mixture of DS-10 synanol and urea. The contents are thoroughly mixed until a homogeneous mass is obtained. 1.075 kg of defoamer is obtained, which is a white-colored paste that readily disperses in aqueous media. The resulting antifoaming composition has a high antifoaming activity, practically independent of the type of foaming agent and the system dynamics (the effective concentration in aqueous solutions of surfactants of anionic and non-ionic type is 0.005 wt.%.)

The antifoam has no negative effect on the wetting ability and surface activity of textile excipients, does not affect the shade of dyes.

The antifoam is simple in performance, stable for 1 g or more when stored in a closed or tin plate. glass packaging, non-toxic, convenient to use.

Similarly to the example, other defoaming compositions are obtained, differing in composition and quantity of ingredients.

 The composition of the defoaming compositions is listed in Table 1.

The results of reducing the foaminess of aqueous solutions of surfactants proposed by the defoamer are presented in

Table 2.

The compositions of the tested defoaming compositions are listed in Table 3.

Comparable comparative data on the results of the determination

the foam activity of the proposed antifoam agent and known in model solutions, depending on the concentration of the defoaming additive (0.005; 0.01, 0.05 wt.%) are given

in tab. 4-6, respectively.

Concentrations of defoaming additives are given according to the content of the main agent in the defoaming composition. Based on the fact that ASG-1 is a 100% drug, UDPS-5 in terms of PMS 0.5, UDPS-6 5, UDPS-7 5, UDSS-8 2.5% drugs, respectively.

The results of the tests for determining the antifoaming activity of the proposed antifoaming composition. And a similar composition, but without urea in finishing media of textile production containing urea, depending on the concentration of antifoaming additive (0.005 and 0.01 wt.%) Are given in Table. 7 and 8 respectively.

Test program. The foam suppressant activity of the compared defoamers in the model aqueous solutions of surfactants and finishing media of textile production was determined according to the generally accepted method depending on the concentration of the defoaming additive.

Foaming of aqueous solutions was performed by mixing a standard portion of the solution (200 ml) in a one-liter graduated glass beaker with a paddle stirrer at a constant speed of 1000 rpm. Electric stirrer to ensure constant speed connected

through automatic transformer LATR. The speed of mixing was preliminarily checked with a Type 40-11 tachometer. The mixing times of 1, 15 and 30 minutes were measured with a stopwatch.

The foaming ability of the tested solutions was judged from the height of the rise of the level of the foamed liquid during mixing.

Foaming activity (effectiveness of antifoam agent) as a decrease in the foaming ability of aqueous solutions was evaluated by changing the height of the volume of the solution containing the antifoam relative to the height of the volume of the pure solution and expressed as a percentage.

Model surfactant solutions: an aqueous solution of a non-ionic surfactant SP-10 8 g / l, an aqueous solution of anionic surfactant ditalan WO 1.4 g / l.

The compositions of the finishing production of textiles:

Dye solution for dyeing with protions (KRDKP), g / l: Procyon dye brand M5 Wetting agent OP-10 2 Urea 50 Sodium bicarbonate 4 I Soda2

Dyeing solution for indigozol dyeing (KRDKI), g / l: A mixture of indigo Golden yellow and gray (1: 1) 37

Sodium nitrite 15

90.5 69.5 80.0 63.0 94.5

90.5 69.5

208053

Ammonia 25% water1 Nickel (anionic surfactant) 5

5 Azotole (PA) solution under seal with cold dyes, g / l: Azotopo A10

Caustic soda 5

Metaunon (anionic

10 surfactants) 2

Printing ink solution with azo-dye (PKK), g / l:

Black black80

Urea with water 1: 1 200

15 Caustic soda

beats. weight. 1.3326

Magnesium sulphate 20 Thickener collapse 1-1al 474 Finishing agent for low-crushing finish

20 cotton fabrics (ADMO), g / l:

Carbamol CEM150

Polyvinyl acetate emulsion (PVAE) 5

Polyethylene emulsion (PEE) 10 Urea5 Magnesium chloride 7.5 White dye 1

25

The proposed antifoaming agent for water media in its model of antifoaming activity in model solutions of surfactants and dyes exceeds the known by more than 10 times and in finishing media of textile production containing urea by 33-41%.

Table 1

5.0

15.0

10.0

18.0

3.0

5.0

15.0

2.5 7.5 5.0 9.0 1.5 2.5 S5

80.0 63.0 94.5

89

92

92

91

76

88

90

89

90

78

84

86

84 87 86 86 65 85 87 86 85 70 80 83

Continuation of table 1

5.0

10.0

1.0

2.0

8.0

5.0

10.0

1.0

10.0

18.0

3.0

5.0

15.0

10.0

18.0

3.0

5.0 9.0 1.5 2.5 7.5 5.0 9.0 1.5

table 2

82 86 87 86 63 83 86 82 82 65 78

80

84 86 33 86 72 84 86 85 85 73 77 80

81 83 85 82 61 81 83 81 82 64 75 78

5,010.0 5.0

5.0

Continuation of table 2

Table 3

10.0

2.50

0.50

1.25

1.25

0.01 0.001 0.01 0.005

96.89 94.499 93.64 96.195

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Table 4

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Circulation 471 Subscription

VNIIPI FocyAapCTBeHHOj o USSR Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

95 60

85 40

100 64

93 52

Claims (2)

FOAM EXTINGUISHING COMPOSITION FOR WATER MEDIA, including polymethylsiloxane liquid, emulsifier is a derivative of ethylene glycol, hydrophobized aerosil and a nitrogen-containing compound, distinguished by the fact that, in order to increase antifoaming activity in dyeing, printing and finishing of textile materials, it contains an ethylene glycol derivative dodecyloxy (octa) decaethylene glycol, as a nitrogen-containing compound, urea in the following ratio of components, May 2: Polymethylsiloxane liquid. Dodecyloxy (octa) decaethylene glycol Hydrophobized Aerosil Urea 69.5-90.5 5.0-15.0 2.0-8.0 2.5-7.5