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A degradable single-dose paint mist coagulant and its preparation method and application

A paint mist coagulant, single-dose technology, applied in chemical instruments and methods, flocculation/sedimentation water/sewage treatment, water/sewage treatment, etc., can solve the problems of deteriorating circulating water quality and ineffective flocculation of paint slag, etc. Achieve the effects of good viscosity loss, avoid secondary pollution, and protect the environment

Active Publication Date: 2018-03-06
SHANGHAI LICHANG ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the technical problems of the existing two-component paint mist coagulant in the application process of the coating workshop of the construction machinery factory, such as the fact that the paint residue cannot be effectively flocculated and floated, a large amount of sediment in the circulating water, and the water quality of the circulating water deteriorates rapidly.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Weigh each raw material according to the following mass percentage: add tap water: 90.05% to the three-neck flask, place it in a constant temperature water bath for stirring;

[0027] Add 5.0% soluble starch and stir to completely disperse the starch in tap water;

[0028] Turn on the switch of the constant temperature water bath and set the temperature at 60°C for heating;

[0029] After the temperature rises to the set temperature and stabilizes, time the starch solution in the three-necked flask to react for 30 minutes to obtain component I;

[0030] After component I is cooled to room temperature (25°C), add 4.0% polylactide and stir to dissolve;

[0031] Continue to add 0.05% sodium carboxymethylcellulose and stir to dissolve completely;

[0032] Continue to add 0.4% polyethylene glycol 200 and stir to dissolve, then add 0.5% sodium propionate and stir to dissolve completely, and then the paint mist coagulant product is obtained.

Embodiment 2

[0034] Weigh each raw material according to the following mass percentage: add tap water: 95.49% to the three-neck flask, place it in a constant temperature water bath for stirring;

[0035] Add 2.0% soluble starch and stir to completely disperse the starch in tap water;

[0036] Turn on the switch of the constant temperature water bath and set the temperature at 60°C for heating;

[0037] After the temperature rises to the set temperature and stabilizes, time the starch solution in the three-necked flask to react for 30 minutes to obtain component I;

[0038] After component I is cooled to room temperature (25°C), add 2.0% polylactide and stir to dissolve;

[0039] Continue to add 0.01% sodium carboxymethylcellulose and stir to dissolve completely;

[0040] Continue to add 0.2% polyethylene glycol 200 and stir to dissolve, then add 0.3% sodium propionate and stir to dissolve completely, and then the paint mist coagulant product is obtained.

Embodiment 3

[0042] Weigh each raw material according to the following mass percentage: add tap water: 95.49% to the three-neck flask, place it in a constant temperature water bath for stirring;

[0043] Add 2.0% soluble starch and stir to completely disperse the starch in tap water;

[0044] Turn on the switch of the constant temperature water bath and set the temperature at 60°C for heating;

[0045] After the temperature rises to the set temperature and stabilizes, time the starch solution in the three-necked flask to react for 30 minutes to obtain component I;

[0046] Add 2.0% polycaprolactone and stir to dissolve component I after cooling to normal temperature (25°C);

[0047] Continue to add 0.01% sodium carboxymethylcellulose and stir to dissolve completely;

[0048] Continue to add 0.2% polyethylene glycol 200 and stir to dissolve, then add 0.3% sodium propionate and stir to dissolve completely, and then the paint mist coagulant product is obtained.

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PUM

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Abstract

The invention discloses a degradable single-dose paint mist coagulant and a preparation method and application thereof. The paint mist coagulant comprises according to percent by weight: 2.0-5.0% of a soluble starch, 2.0-4.0% of polyester, 0.01-0.05% of sodium carboxymethyl cellulose, 0.3-0.5% of a preservative, 0.2-0.4% of a dispersant, and 90.05-95.49% of water. The main material, the soluble starch, of the paint mist coagulant is biologically degradable, COD and BOD quantity produced in circulating water is greatly reduced, secondary pollution produced by the application of a drug in water is avoided, environment is effectively protected, and the concept of sustainable development is advocated. The paint mist coagulant has good tack-free and coagulating effects, and can help paint to lose tackiness, destabilize and quickly coagulate, separating from water; the paint mist coagulant is applied mainly in circulating water treatment for wet paint removal.

Description

technical field [0001] The invention relates to the technical field of paint mist coagulant, in particular to a degradable single-dose paint mist coagulant and its preparation method and application. Background technique [0002] In the automobile, home appliance, furniture, construction machinery and some plastic processing industries, most of the painting operations adopt modern spraying technology, and are carried out in closed container spray booths or paint workshops, and are equipped with corresponding air supply and exhaust systems and wet paint mist removal systems. . The main purpose of the wet paint mist removal system is to remove the overspray paint mist to protect the health of the on-site painting workers and prevent the overspray paint mist from polluting the parts to be sprayed. The wet spray booth that is often used in painting operations uses water as an absorbent to form circulating water in the spray booth. Its working principle is: the paint mist is in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/54
CPCC02F1/5263C02F1/54C02F1/56
Inventor 高素萍谢爱军尤国彪许海
Owner SHANGHAI LICHANG ENVIRONMENTAL ENG