Moisture-proof agent for storage of powder coating for film forming by electrostatic spraying

An electrostatic spraying and powder coating technology, applied in powder coatings, epoxy resin coatings, coatings, etc., to achieve the effects of weakening moisture absorption, enhancing moisture resistance, and excellent moisture resistance

Inactive Publication Date: 2017-11-10
ANHUI ZHIBO NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a film-forming powder coated by electrostatic spraying that can effectively solve the problem of moi

Method used

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  • Moisture-proof agent for storage of powder coating for film forming by electrostatic spraying
  • Moisture-proof agent for storage of powder coating for film forming by electrostatic spraying
  • Moisture-proof agent for storage of powder coating for film forming by electrostatic spraying

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] (1) Heat 10g of hydrophobic fine silica aerogel to 80-85°C and keep it mixed for 10min, then add 0.5g carnauba wax, continue to keep the temperature at 80-85°C and keep mixing until the carnauba wax is completely melted and kept In the molten state for 5 minutes, add 5g of N-methylolacrylamide and 60g of absolute ethanol, heat and stir under reflux for 2h, the resulting mixture is sent to the spray dryer, and the dried particles are made into nano-particles by nano-milling machine. Nano rubber powder;

[0024] (2) Heat 3g of chlorinated polyvinyl chloride to 125-130℃ for 5 minutes, then add 3g of superfine magnesium oxide and 0.5g of polytetrafluoroethylene superfine powder, continue to keep the temperature at 125-130℃ for 10 minutes Naturally cool to room temperature during grinding to obtain the auxiliary agent;

[0025] (3) Add 10g of glyceryl monostearate-polyglutamic acid-lauryl alcohol and additives to the nano rubber powder, mix thoroughly and micro...

Example Embodiment

[0027] Example 2

[0028] (1) Heat 15g of hydrophobic fine silica aerogel to 80-85℃ for 15min, then add 0.5g of carnauba wax, continue to keep at 80-85℃ for heating and mixing until the carnauba wax is completely melted, and keep it After 5 minutes in the molten state, 10g N-methylolacrylamide and 80g absolute ethanol are added, and the mixture is kept at reflux and stirred for 3 hours. The resulting mixture is sent to a spray dryer, and the dried particles are made into nano-particles by a nano-milling machine. Nano rubber powder;

[0029] (2) Heat 5g of chlorinated polyvinyl chloride to 125-130℃ for 10 minutes, then add 2g of superfine magnesium oxide and 1g of polytetrafluoroethylene superfine powder, continue to keep mixing at 125-130℃ for 15min, and then grind Cool down naturally to room temperature to get the additives;

[0030] (3) Add 5g of glyceryl monostearate-polyglutamic acid-lauryl alcohol and additives to the nano-gel powder, mix thoroughly and microwave treatment at ...

Example Embodiment

[0045] Example 3

[0046] The moisture-proofing agents prepared in Example 1, Example 2, Comparative Example 1, Comparative Example 2, and Comparative Example 3 were added to the powder coating according to Table 1, and the powder coating without added moisture-proofing agent was used as Comparative Example 4. The moisture absorption performance of the powder coating was tested, and the results are shown in Table 2.

[0047] Table 1 Powder coating ingredients list

[0048]

[0049]

[0050] Table 2 Moisture absorption performance of the powder coating (weight gain percentage)

[0051]

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Abstract

The invention discloses a moisture-proof agent for storage of a powder coating for film forming by electrostatic spraying, and relates to the technical field of powder coatings. The moisture-proof agent is prepared from the raw materials in parts by weight as follows: 10-15 parts of hydrophobic fine silica aerogel, 5-10 parts of glycerol monostearate-polyglutamic acid-dodecanol, 5-10 parts of N-(hydroxymethyl)acrylamide, 1-5 parts of chlorinated polyvinyl chloride, 1-5 parts of ultrafine magnesium oxide, 0.5-2 parts of polytetrafluoroethylene ultrafine powder, 0.5-2 parts of carnauba wax and 50-100 parts of absolute ethanol. After 3%-5% by mass of the moisture-proof agent is added to the powder coating, excellent moisture-proof performance can be developed, the resistivity and dielectric constant of the powder coating are prevented from being affected by agglomeration due to moisture absorption during storage and use, and accordingly, smooth implementation of electrostatic spraying of the powder coating and quality of a formed film are ensured.

Description

Technical field: [0001] The invention relates to the technical field of powder coatings, in particular to a moisture-proofing agent for powder coating storage which is applied by electrostatic spraying to form a film. Background technique: [0002] Powder coating refers to a new type of solvent-free 100% solid powder coating, which has the characteristics of solvent-free, pollution-free, recyclable, environmental protection, energy and resource saving, labor intensity reduction and high mechanical strength of the coating film. The meaning of powder coating is not only that the product of powder coating is in powder state, but also used in powder state in the coating process. Only when it is baked into a film does it have a process of melting and forming a liquid state. [0003] Electrostatic spraying is one of the main coating methods of powder coatings. The powder coating is sprayed onto the surface of the substrate through an electrostatic spray gun to form a coating film ...

Claims

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Application Information

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IPC IPC(8): C09D7/12C09D5/03C09D163/00C09D123/06
CPCC08K2003/222C08K2003/265C08L2205/02C08L2205/035C09D5/033C09D163/00C08L63/04C08L33/24C08L91/06C08L77/04C08L23/286C08L27/18C08L23/06C08K13/02C08K3/36C08K3/26C08K3/22
Inventor 汪六一宋从发
Owner ANHUI ZHIBO NEW MATERIAL TECH CO LTD
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