High-storability release agent and preparation method thereof

A release agent and storage-resistant technology, used in manufacturing tools, casting and molding equipment, metal processing equipment, etc., can solve the problems that the release agent is not easy to store for a long time, the viscosity of the release agent increases, and the release agent is difficult to bond.

Inactive Publication Date: 2015-12-23
WUHU HUANGYAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the release agent can basically meet the above three characteristics, but the existing release agent is not easy to store for a long time, because the components of the release agent are easy to settle after long-term storage, and at the same time, the viscosity of the release agent increases due to oxidation making it difficult for the release agent to adhere to the mold

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0017] The present invention also provides a preparation method of a storage-resistant release agent, comprising:

[0018] 1) Soak the vermiculite in a hydrochloric acid solution after calcining, and then filter to obtain the modified vermiculite;

[0019] 2) Mixing modified vermiculite, sodium alginate, soybean wax, dibutyltin dilaurate, nonylphenol ether polyoxyethylene ether, aluminum oxide and an organic solvent to prepare a release agent.

[0020] In the above-mentioned preparation method, the specific type of organic solvent can be selected in a wide range, as long as other components can be uniformly dispersed in the organic solvent, but in order to make the prepared mold release agent have more excellent Viscosity and anti-settling properties, preferably, the organic solvent is selected from one or more of ethyl acetate, ethanol and n-hexane.

[0021] In the above-mentioned preparation method, the specific content of each component can be selected in a wide range, but...

Embodiment 1

[0028] 1) Calcining the vermiculite at 600° C. for 12 hours, soaking it in a hydrochloric acid solution (the concentration of hydrochloric acid is 25% by weight) at 40° C. for 7 hours, and then filtering to obtain the modified vermiculite;

[0029] 2) Mix modified vermiculite, sodium alginate, soybean wax, dibutyltin dilaurate, nonylphenol ether polyoxyethylene ether, aluminum oxide and organic solvent (weight ratio is 85:25:4:4:5:27 : 100) were mixed at 25°C for 45 minutes to prepare the release agent A1.

Embodiment 2

[0031] 1) Calcining the vermiculite at 550° C. for 10 h, soaking it in a hydrochloric acid solution (the concentration of hydrochloric acid is 20% by weight) at 35° C. for 6 h, and then filtering to obtain the modified vermiculite;

[0032] 2) Mix modified vermiculite, sodium alginate, soybean wax, dibutyltin dilaurate, nonylphenol ether polyoxyethylene ether, aluminum oxide and organic solvent (the weight ratio is 75:10:3:2:2:25 : 100) mixed at 15°C for 30 minutes to prepare release agent A2.

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PUM

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Abstract

The invention discloses a high-storability release agent and a preparation method thereof. The high-storability release agent is prepared from modified vermiculite, sodium alginate, soy wax, dibutyltin dilaurate, nonyl phenol ethoxylate, aluminum oxide and organic solvent, wherein the modified vermiculite is obtained by soaking calcined vermiculite in a hydrochloric acid solution and then filtering the mixture. The release agent can be stored and used for a long time, meanwhile, steps of the preparation method of the release agent are simple, and the raw materials are easy to get.

Description

technical field [0001] The invention relates to a release agent, in particular to a storage-resistant release agent and a preparation method thereof. Background technique [0002] Aluminum alloy wheels have been widely used in daily life due to their light weight and anti-corrosion characteristics. These aluminum alloy wheels are usually processed by die-casting. In the die-casting process of aluminum alloy, a release agent is required in the die-casting mold, and the release agent is a functional substance between the mold and the finished product. The release agent has the following characteristics: 1) Chemical resistance, that is, it will not be dissolved when in contact with the finished product; 2) It has heat resistance and excellent stress performance, and is not easy to decompose or wear; 3) It is easy to adhere to the mold without transfer to the workpiece being processed. [0003] At present, the release agent can basically meet the above three characteristics, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C3/00
Inventor 倪勤松王军
Owner WUHU HUANGYAN IND
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