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Surface treatment process for enhancing low-temperature resistance of plastic

A technology for surface treatment and reinforcement of plastics, applied in polyester coatings, coatings, etc., can solve the problems of insufficient improvement of low-temperature brittleness of plastics, enhanced low-temperature brittleness, prone to cracking or fracture, etc. Volume, the effect of accelerated thermal exercise

Inactive Publication Date: 2014-09-17
CHUZHOU HONGYUAN SPRAYING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the light weight of plastic and most of its superior performance, plastic is a suitable material for making building formwork, but the disadvantage of plastic is that when the ambient temperature drops to near zero, its low-temperature brittleness will increase, making it prone to cracking or fracture
Although the research on the improvement of low-temperature brittleness of plastics has not stopped, the low-temperature brittleness of plastics has not been effectively improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A surface treatment process for enhancing the low temperature resistance of plastics, the specific steps are:

[0032] (1) Plastic degreasing: Electrolytic cleaning of the outer surface of the plastic for degreasing.

[0033] (2) Plastic swelling: Put the degreased plastic in the swelling liquid and immerse it for 5 minutes; the components in the swelling liquid and the volume percentages of the components are: bentonite solution: 75%, ethyl acetate: 5%, Dimethyl sulfoxide: 5%, the rest is water.

[0034] (3) Plastic etching: prepare the etching solution, soak the plastic in the etching solution, and heat the etching solution to 60°C at a rate of 7°C / min, and take out the plastic after 15 minutes of heat preservation; the composition of the etching solution The components and the mass percentages of each component are: sulfuric acid: 50%, hydrogen peroxide: 20%, and the rest is water.

[0035] (4) Preliminary conditioning: prepare conditioning liquid, soak the plastic in the c...

Embodiment 2

[0042] A surface treatment process for enhancing the low temperature resistance of plastics, the specific steps are:

[0043] (1) Plastic degreasing: Electrolytic cleaning of the outer surface of the plastic for degreasing.

[0044] (2) Plastic swelling: Put the degreased plastic in the swelling liquid and immerse it for 7 minutes; the components in the swelling liquid and the volume percentages of each component are: bentonite solution: 78%, ethyl acetate: 6%, Dimethyl sulfoxide: 7%, the rest is water.

[0045] (3) Plastic etching: prepare the etching solution, soak the plastic in the etching solution, and heat the etching solution to 68°C at a rate of 10°C / min, and take out the plastic after holding for 17 minutes; the composition of the etching solution The components and the mass percentages of each component are: sulfuric acid: 55%, hydrogen peroxide: 17%, and the rest is water.

[0046] (4) Preliminary conditioning: prepare conditioning liquid, soak the plastic in the condition...

Embodiment 3

[0053] A surface treatment process for enhancing the low temperature resistance of plastics, the specific steps are:

[0054] (1) Plastic degreasing: Electrolytic cleaning of the outer surface of the plastic for degreasing.

[0055] (2) Plastic swelling: Put the degreased plastic into a swelling liquid and immerse it for 10 minutes; the components in the swelling liquid and the volume percentage of each component are: bentonite solution: 80%, ethyl acetate: 8%, Dimethyl sulfoxide: 8%, the rest is water.

[0056] (3) Plastic etching: prepare an etching solution, soak the plastic in the etching solution, and heat the etching solution to 75°C at a rate of 15°C / min, and take out the plastic after 20 minutes of heat preservation; the composition of the etching solution The components and the mass percentages of each component are: sulfuric acid: 60%, hydrogen peroxide: 20%, and the rest is water.

[0057] (4) Preliminary conditioning: prepare conditioning liquid, soak the plastic in the c...

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Abstract

The invention relates to a surface treatment process for enhancing the low-temperature resistance of plastic. The surface treatment process specifically comprises the steps of degreasing plastic, swelling plastic, etching plastic, carrying out preliminary conditioning, activating plastic, preparing a low-temperature-resistant layer, carrying out treatment by oxidizing flame, plating the low-temperature-resistant layer, washing with water and drying. The surface treatment process disclosed by the invention has the advantages that the process is simple, the treatment time is shortened, the low-temperature resistance of plastic can be significantly improved, and the temperature brittleness of plastic is reduced; the treated plastic has the characteristics of relatively high surface smoothness and more beautiful appearance.

Description

Technical field [0001] The invention belongs to the technical field of plastic surface treatment, and in particular relates to a surface treatment process capable of enhancing the low-temperature resistance of plastics so as to reduce their low-temperature brittleness. Background technique [0002] Plastics are polymer compounds made by polymerization of monomers as raw materials through addition polymerization or condensation polymerization. Because of its light weight, good insulation, and low thermal conductivity, plastic is usually used to make water cups, water bottles, baby bottles and other daily necessities. [0003] Due to its light weight and most excellent properties, plastic is a suitable material for building templates. However, the disadvantage of plastic is that when the ambient temperature drops to close to zero, its low temperature brittleness will increase, causing it to be prone to cracking or cracking. fracture. Although the improvement of the low-temperat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/02C09D167/02C09D7/12
Inventor 王新志
Owner CHUZHOU HONGYUAN SPRAYING
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