Unlock instant, AI-driven research and patent intelligence for your innovation.

Paint mist debonding coagulant

A coagulant and debonding technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of environmental friendliness and unsatisfactory application scope, achieve excellent paint mist debonding and floating effect, low dosage, The effect of low processing cost

Inactive Publication Date: 2014-07-02
SHANGHAI YUANZHONG NEW MATERIAL TECH CO LTD
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Recently, the U.S. patent literature discloses a compound paint mist debonding coagulant of aluminum hydroxychloride hydrate / cationic starch or guar gum (publication number is US8591744B2, and the publication date is November 26, 2013), But its environmental friendliness and scope of application are not ideal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] This embodiment relates to a paint mist debonding coagulant, and its components are as shown in Table 1:

[0025] Table 1

[0026] components

%(weight)

Lignin grafted polydimethyldiallylammonium chloride

1

PAC

40

magnesium sulfate

7

water

52

[0027] Use the above-mentioned paint mist debonding coagulant to conduct experiments on ordinary oil-based mid-coat paint, the steps are as follows:

[0028] (1) Take a 200mL glass bottle with a cover and add 160mL of tap water;

[0029] (2) Add a drop of the above-mentioned paint mist debonding coagulant solution (0.04g) to the water, shake well to fully mix the agent with water;

[0030] (3) Adjust the pH of the system to 8-9 with NaOH or sodium carbonate solution;

[0031] (4) Add 0.8g of oil-based paint dropwise to the system, cover the bottle cap, and shake the glass bottle vigorously for 15 to 30 seconds;

[0032] (5) Add 1-2mL of 0.1% 30% charged anionic ...

Embodiment 2

[0035] This embodiment relates to a paint mist debonding coagulant, and its components are as shown in Table 2:

[0036] Table 2

[0037] components

%(weight)

Sodium alginate grafted polydimethyldiallyl ammonium chloride

3.5

Hydroxy Aluminum Chlorohydrate

55

Iron sulfate

5

water

36.5

[0038] Use the above-mentioned paint mist debonding coagulant to conduct experiments on common water-based primers, the steps are as follows:

[0039] (1) Take a 200mL glass bottle with a cover and add 160mL of tap water;

[0040] (2) Add 1.2g water-based paint and shake the water-based paint solution;

[0041] (3) Add 0.04g of the agent of the paint mist debonding coagulant solution described in Example 2, shake well to fully mix the agent with the water-based paint;

[0042] (4) Add 1 to 2mL of 0.1wt% 30% charged anionic polyacrylamide solution, and rotate the glass bottle to disperse the anionic polyacrylamide evenly.

[00...

Embodiment 3

[0045] This embodiment relates to a paint mist debonding coagulant, and its components are as shown in Table 3:

[0046] table 3

[0047] components

%(weight)

Lignin grafted polydimethyldiallylammonium chloride

7

PAC

17

magnesium sulfate

3

water

73

[0048] The paint mist debonding coagulant obtained in this embodiment was subjected to a field test in a spraying line workshop. The spraying line adopts mixed spraying of oil-based paint and water-based paint, and the amount of paint falling is 900 kg per day. In the field test, the metering pump was used to add the paint mist debonding coagulant, and the daily dosage was 36kg. At the same time, sodium carbonate was added to maintain the alkalinity of the circulating water at 200-500ppm (calculated as calcium carbonate), and the pH of the system was maintained at 8-8.5; Anionic polyacrylamide is used as coagulation aid and floating agent; the experiment period is ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a paint mist debonding coagulant, comprising the following components by weight percent: 20-60% of inorganic salt, 1-7% of grafted modified product of a natural plant extract, and the balance of water, wherein the inorganic salt is selected from at least one of an aluminum salt, a ferric salt or a magnesium salt. The modified grafted product of the natural pant extract is prepared from lignin or a sodium alga acid-grafted cationic polymer. The paint mist debonding coagulant disclosed by the invention is completely green and environment-friendly, wide in application scope, low in dosage, and applicable to various oil and water based paints, does not contain a hazardous substance, and has excellent paint mist debonding and floating effects.

Description

technical field [0001] The invention relates to a chemical agent suitable for various water-based paints and oil-based paints, in particular to a paint mist debonding coagulant. Background technique [0002] At present, in the spraying process of various car body shells such as automobiles and motorcycles, engines, and various electrical appliance shells, only about 50-70% of the paint sprayed by manual or robotic spray guns will fall on the required spraying surface. In other words, about 30-50% of the paint cannot be sprayed on the shell or is wasted. This part of the wasted paint is generally called overspray paint. Effective and timely treatment of overspray paint is an important link to ensure the smooth progress of the painting process. This is because: for oil-based paints, oversprayed paint adheres in the circulating water tank, pipes and pump body of the spray booth, causing blockage in severe cases; for water-based paints, oversprayed paint causes a large increase...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56
Inventor 王鹏宋伟东胡金泽
Owner SHANGHAI YUANZHONG NEW MATERIAL TECH CO LTD