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Direct physical type water-based paint remover

A paint stripper, water-based technology, applied in the field of chemical paint remover, can solve problems such as corrosion of metal substrates, and achieve the effects of simple operation, good paint stripping effect and convenient use.

Inactive Publication Date: 2014-09-03
CANGZHOU DENON COMPOSITE MATERIAL LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art and solve the problem that the existing paint strippers contain toxic substances such as benzene, phenol and hydrofluoric acid, which cause corrosion to metal substrates

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Production of paint remover: Weighing according to the ratio of raw materials: methanol 52kg, benzoic acid 3.1kg, pulling powder 0.9kg, trichlorethylene 9.7kg, methylene chloride 48.0kg, paraffin 0.5Kg, CNC cellulose 1.1kg, Mc fiber Vegetables 0.5kg, deionized water 35kg. First add ion-free water into a 500L stainless steel stirring tank, then add dichloromethane, trichloroethylene, and methanol and stir evenly; then add benzoic acid, pull-off powder, CNC cellulose, and Mc cellulose during the stirring process, and stir Uniform, and finally liquid paraffin is added to make a uniform milky product, which is packaged after passing the inspection, which is the paint remover product I of the present invention.

[0014] Paint stripping test: Spray the LY12 aluminum alloy plate sample with a thickness of 100 μm epoxy-polyester mixed powder coating film, and spray the paint stripper product I under the environment of 15 ℃, the paint film starts to swell in 3 minutes, and the p...

Embodiment 2

[0016] Production of paint remover: Weighing according to the ratio of raw materials: methanol 25kg, benzoic acid 14.5kg, pulling powder 5.5kg, trichlorethylene 50kg, dichloromethane 235kg, paraffin 2.5Kg, CNC cellulose 5.5kg, Mc cellulose 3.5 kg, 170kg of deionized water. First add ion-free water into an 800L stainless steel stirring tank, then add dichloromethane, trichloroethylene, and methanol and stir evenly; then add benzoic acid, pull-off powder, CNC cellulose, and Mc cellulose during the stirring process, and stir Finally, liquid paraffin is added to make a uniform milky product, which is packaged after passing the inspection, which is the paint remover product II of the present invention.

[0017] Paint stripping test: Spray the Ω235 steel plate sample with a thickness of 100 μm of pure epoxy powder coating film, at 22°C, after spraying this paint remover product II, the paint film begins to swell in 3.5 minutes, and the paint film completely falls off in 5 minutes; ...

Embodiment 3

[0019] Production of paint remover: Weighing according to the ratio of raw materials: 1000kg of dichloromethane, 100kg of methanol, 60kg of benzoic acid, 18kg of pulling powder, 210kg of trichlorethylene, 11Kg of paraffin, 20kg of CNC cellulose, 10kg of Mc cellulose, deionized water 680kg. First add ion-free water into a 2000L stainless steel stirring tank, then add dichloromethane, trichloroethylene, and methanol and stir evenly; then add benzoic acid, pull-off powder, CNC cellulose, and Mc cellulose during the stirring process, and stir Evenly, finally liquid paraffin is added to make a uniform milky product, which is packaged after passing the inspection, which is the paint remover product III of the present invention.

[0020] Paint stripping test: the copper plate sample sprayed with a thermosetting acrylic resin powder coating film with a thickness of 100 μm, after spraying this paint remover product III at 15°C, the paint film began to swell in 3 minutes, and the paint ...

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PUM

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Abstract

The invention provides a direct physical type water-based paint remover, belonging to the technical field of chemical coating removers and aiming at solving the problem that an existing paint remover causes corrosion on a metal substrate because of containing toxic substances, namely benzene, phenol, hydrofluoric acid and the like. The direct physical type water-based paint remover comprises the following raw materials in parts by weight: 3.8-6.5 parts of methanol, 2.4-3.7 parts of benzoic acid, 0.8-1.4 parts of nekal, 8.5-12.0 parts of trichloroethylene, 42.0%-55.0% of dichloromethane, 0.4-0.7 part of paraffin, 0.8-1.3 parts of CNC cellulose, 0.4-0.8 part of Mc cellulose and 28-40 parts of deionized water. The prepared novel water-based paint remover is reasonable in component, does not contain the toxic substances, can be used for removing a paint film without heating and is simple in manufacturing method and suitable for an automobile industry, a machine manufacturing industry, an electronic and electric industry, a light industry, a chemical industry and the like.

Description

technical field [0001] The invention belongs to a paint remover in the technical field of chemical paint (paint) remover. Background technique [0002] With the increasing development of the paint industry and the continuous improvement of people's living standards, especially powder coatings are widely used in automobiles, machinery manufacturing, construction, light industry, chemical industry, etc. If the paint surface of the paint equipment loses gloss, cracks, scratches, etc., it is also necessary to use a paint remover to remove the paint film, and then process or re-spray. Correspondingly also also more and more higher to the technical requirement of paint remover. Since the paint film is mainly composed of polyester resin and crosslinking agent, and is composed of titanium dioxide, catalyst and other additives, such as thermoplastic powder coatings, thermosetting powder coatings, etc., the paint films of these polymers can dissolve or swell in the corresponding orga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D9/00
Inventor 赵维智李滨杨国明吴嘉生韩苏琴
Owner CANGZHOU DENON COMPOSITE MATERIAL LIMITED
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