Frictional water-based environment-friendly paint layer removing agent, and preparation method and application thereof

A cleaning agent and frictional technology, which is applied in the field of frictional water-based environmental protection paint layer cleaning agent and its preparation, can solve the problems of production cost pressure, strong volatility, environmental pollution, etc., and achieve low cost, low corrosion, and easy to use convenient effect

Active Publication Date: 2017-12-22
NANXIONG JIASHENG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, although the traditional chlorinated hydrocarbon organic solvents can efficiently complete the paint removal work, the chlorinated hydrocarbon organic solvents are highly toxic, volatile, easy to burn, and chemically unstable, causing great pollution to the environment; the new type The molecular weight of N-methylpyrrolidone NMP is very small. For most paint films, its penetration ability is very strong. It can penetrate into the molecular chain segments of most paint films and quickly make the paint film swell, but NMP is expensive, which puts pressure on the production cost of enterprises; in addition, organic solvents are mainly alcohol ethers, esters, and alcohols, but the cleaning effect needs to be improved
[0004] In addition, when using a paint cleaner, the paint layer is usually first coated with an organic solvent, and after the paint layer swells and bursts, use artificial mechanical methods such as a scraper to remove the paint layer (it will inevitably scratch the base metal), And for some low-cost cleaning agents, limited by the main solvent of the cleaning agent (for example, the paint removal effect of NMP is much higher than that of propylene glycol carbonate, benzyl alcohol, etc.), the cleaning effect is limited. When the paint layer is thick, the paint removal Ineffective, to be resolved

Method used

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  • Frictional water-based environment-friendly paint layer removing agent, and preparation method and application thereof
  • Frictional water-based environment-friendly paint layer removing agent, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Composite main solvent: propylene glycol carbonate: ethylene glycol butyl ether = 2: (1~1.5), 25~40wt.%;

[0042] Co-solvent: γ-butyrolactone, 5~15wt.%;

[0043] Activator: acetic acid, 9~12wt.%;

[0044] Surfactant: cetyltrimethylammonium bromide: SPAN-80=1: (0.5~1), 2~3wt.%;;

[0045] Frictional particles: 0.05-1μm silicon oxide, 3~6wt.%;

[0046] Anti-aging agent: phenolic anti-aging agent, 2~3wt.%;

[0047] Penetrant: dioctyl sulfosuccinate sodium salt, 1~1.5wt.%;

[0048] Thickener: hydroxymethyl cellulose, 1.5~2wt.%;

[0049] Corrosion inhibitor: sulfonated lignin, 0.5~0.8wt.%;

[0050] Deionized water: ethanol volume ratio = 3:1, 10~25wt.%, marked as sample 1.

Embodiment 2

[0052] Main solvent: dimethyl succinate, 25~40wt.%;;

[0053]Co-solvent: γ-butyrolactone, 5~15wt.%;

[0054] Activator: Propionic acid, 9~12wt.%;

[0055] Surfactant: cetyltrimethylammonium bromide: SPAN-80=1: (0.5~1), 2~3wt.%;

[0056] Frictional particles: 0.05-1μm α-alumina particles, 3~6wt.%;

[0057] Anti-aging agent: phenolic anti-aging agent, 2~3wt.%;

[0058] Penetrant: dioctyl sulfosuccinate sodium salt, 1~1.5wt.%;

[0059] Thickener: methyl cellulose, 1.5~2wt.%;

[0060] Corrosion inhibitor: polyaspartic acid, 0.5~0.8wt.%;

[0061] Deionized water: ethanol volume ratio = 3:1, 10~25wt.%, marked as sample 2.

Embodiment 3

[0063] Main solvent: N-methylpyrrolidone, 25~40wt.%;

[0064] Co-solvent: n-propanol, 5~15wt.%;

[0065] Activator: lactic acid, 9~12wt.%;

[0066] Surfactant: betaine type surfactant, 2~3wt.%;

[0067] Frictional particles: 0.05-1μm silicon oxide, 3~6wt.%;

[0068] Anti-aging agent: phenolic anti-aging agent, 2~3wt.%;

[0069] Penetrant: dioctyl sulfosuccinate sodium salt, 1~1.5wt.%;

[0070] Viscous agent: hydrated lithium magnesium silicate, 1.5~2wt.%;

[0071] Corrosion inhibitor: sulfonated lignin, 0.5~0.8wt.%;

[0072] Deionized water: ethanol volume ratio = 3:1, 10~25wt.%, marked as sample 3.

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Abstract

A frictional water-based environment-friendly paint layer removing agent is composed of: a main solvent, a co-solvent, an activator, a surfactant, frictional granules, an anti-aging agent, a penetrating agent, a thickening agent, a corrosion inhibitor, deionized water and ethanol. The paint removing agent is convenient and easy to use, can effectively remove various common paint layers and is free of damages, such as corrosion, on a base material, is low in volatility and has no toxicity on human body during use; the layer removing agent is free of attachments, such as paraffin, kerosene and the like, so that secondary spray coating of a paint layer can be conveniently carried out; by adding the frictional granules to the paint layer removing agent, friction force of the paint layer is increased, so that after expansion of the paint layer, artificial paint removal is convenient; the paint layer removing agent has significant effect on a paint layer which is firm and has high adhesion force. The paint layer removing agent is safe and environment-friendly, is free of chlorohydrocarbon-type organic solvents and is low in cost.

Description

technical field [0001] The invention relates to a frictional water-based environment-friendly paint layer cleaning agent, a preparation method and application thereof, and belongs to the technical field of paint stripping cleaning agents. Background technique [0002] In our daily life and industrial production, metal products do not need the decoration and protection of coatings. Coatings, such as paint layers, have three functions of corrosion inhibition, shielding and electrochemical protection, and are convenient for construction and have good anti-corrosion effects. widely used. However, in real life, under environmental effects and physical and mechanical effects, with the prolongation of service time, the coating often has local or large area failures, such as loss of gloss, powdering, peeling, cracks, scratches, substrate corrosion, etc. The service life of the substrate is shortened, or accidental defects such as orange peel, cracks, and pulverization inevitably oc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/04C09D9/02C09D9/00
CPCC09D9/005C09D9/02C09D9/04
Inventor 白林森梁莲芝
Owner NANXIONG JIASHENG IND
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