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Degradable thermosetting powder coating and preparation method thereof

A thermosetting powder and thermosetting technology, applied in the direction of powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of environmental pollution, pollution, and no self-degradation function

Active Publication Date: 2014-05-07
TIGER NEW SURFACE MATERIALS QINGYUAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current commercialized thermosetting powder coatings do not have the function of self-degradation, so they will pollute the environment, especially for products with short service life and high replacement frequency (such as fast-moving consumables), the pollution is more serious ;Furthermore, during the normal use of these products, it is more necessary to ensure that the products will not be degraded. Therefore, if you want to avoid the pollution of the powder coating coating to the environment, you need to obtain a product that will not automatically degrade during the service cycle, but reach the end of use. After the cycle, the product can be automatically degraded when certain environmental conditions are met

Method used

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  • Degradable thermosetting powder coating and preparation method thereof
  • Degradable thermosetting powder coating and preparation method thereof
  • Degradable thermosetting powder coating and preparation method thereof

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preparation example Construction

[0028] The embodiment of the present invention also discloses the preparation method of the degradable thermosetting powder coating as described above, wherein the operation steps include the following:

[0029] a), put all the raw materials in the above parts by weight into the mixing tank and mix to obtain the mixing;

[0030] b), placing the mixture obtained in the above step a) in an extruder for melt extrusion, and then cooling to obtain a tablet material;

[0031] c), the tableting material obtained in the above step b) is first coarsely pulverized and then ground to obtain a fine powder;

[0032] d), the fine powder obtained in the above step c) is separated by a cyclone separator, classified and sieved, tested and finished;

[0033] e), completing the preparation of the degradable thermosetting powder coating.

[0034] The embodiment of the present invention realizes the degradation function by adding a degradation agent to the thermosetting powder coating, specifica...

Embodiment 1

[0037] A kind of degradable thermosetting powder coating, wherein, thermosetting powder coating comprises the raw material of following parts by weight:

[0038] 35 parts of thermosetting resin, specifically, in the present embodiment, thermosetting resin adopts polyester resin;

[0039] 5 parts of curing agent, specifically, in the present embodiment, curing agent is triglycidyl isocyanurate;

[0040] 20 parts of degrading agent, wherein, specifically preferably, in this embodiment, the degrading agent is polylactic acid resin, specifically, the production process of polylactic acid resin can be prepared by any common knowledge preparation method, and more specifically, In this embodiment, the preparation method can use starch raw materials to obtain glucose through saccharification, then ferment glucose and certain strains to produce high-purity lactic acid, and then synthesize polylactic acid resin by chemical synthesis;

[0041] Leveling agent 1 part;

[0042] 8 parts of...

Embodiment 2

[0058] In this embodiment 2, thermosetting powder coating comprises the raw material of following parts by weight:

[0059]

[0060] 5 parts by weight of the polymer, specifically, in this embodiment, the polymer has a carboxyl functional group that is cross-linked with the polylactic acid resin, and is used to improve the mechanical properties of the coating film;

[0061] The polyether-modified silicone resin of 5 parts by weight;

[0062] 5 parts by weight of the water-absorbing agent, the water-absorbing agent is a polymer containing a hydrophilic group, and the hydrophilic group is a carboxyl group;

[0063] The remaining technical solutions of this embodiment 2 are the same as those of the above-mentioned embodiment 1.

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Abstract

The invention discloses a degradable thermosetting powder coating and a preparation method thereof. The thermosetting powder coating is prepared from the following raw materials in parts by weight: 25 to 55 parts of thermosetting resin, 4 to 20 parts of curing agent, 15 to 50 parts of degrading agent, 0.1 to 5 parts of flatting agent and 5 to 20 parts of pigment filler. On the premise of meeting the basic performance of the thermosetting powder coating, the good degradation function of the thermosetting powder coating is effectively realized, so that the pollution to an environment is avoided.

Description

technical field [0001] The invention relates to a thermosetting powder coating, in particular to a degradable thermosetting powder coating and a preparation method thereof. Background technique [0002] Thermosetting powder coatings are widely used in various fields due to their advantages of no organic solvent, good environmental protection, high utilization rate, and convenient storage and transportation. Consumers hope that products coated with thermosetting powder coatings can be automatically degraded after meeting the service life, so as to avoid pollution to the environment and improve environmental performance. However, the current commercialized thermosetting powder coatings do not have the function of self-degradation, so they will pollute the environment, especially for products with short service life and high replacement frequency (such as fast-moving consumables), the pollution is more serious ;Furthermore, during the normal use of these products, it is more n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D163/00C09D167/04C09D201/06C09D183/04C09D201/08C09D201/02C09D7/12C09D5/03
Inventor 刘际平冯晓云
Owner TIGER NEW SURFACE MATERIALS QINGYUAN CO LTD