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A kind of release agent and preparation method thereof

A technology of release agent and additive, which is applied in the field of release agent and its preparation, and can solve the problems that the release agent is easy to fall off, etc.

Active Publication Date: 2017-01-18
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing release agent is easy to fall off during the casting process, the present invention provides a release agent that is not easy to fall off and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0020] The present invention also provides a kind of preparation method of release agent, and this method comprises the following steps:

[0021] S1, mixing the additive with a surfactant to prepare an additive emulsion;

[0022] S2, mixing the silicone oil with an emulsifier to obtain a water-soluble release agent;

[0023] S3, mixing the additive emulsion with a water-soluble release agent to obtain a release agent;

[0024] Wherein, the additive is one or a mixture of nano-magnetic materials and nano-metal materials; based on the total weight of the release agent, the content of the additive is 1.6-24.5 wt%.

[0025] According to the preparation method of the release agent provided by the present invention, in order to make the release agent mix more uniformly, preferably, mechanical stirring and ultrasonic oscillation are carried out during the whole preparation process.

[0026] The mold release agent of the present invention, in the case of the overall magnetization of...

Embodiment 1

[0029] 1. Prepare nano-Fe powder by inert gas condensation method, the particle size is 30nm;

[0030] 2. Under the conditions of mechanical stirring and ultrasonic oscillation, prepare nano-iron powder emulsion, its composition and weight percentage are as follows: nano-Fe powder 90%wt, surfactant (PVA: Span 80 = 1:1): 10%wt ;

[0031] 3. Hydroxyl silicone oil and polyoxyethylene lauryl ether are mixed to form a water-soluble release agent, the content of hydroxyl silicone oil is 85wt%, and the content of polyoxyethylene lauryl ether is 15wt%;

[0032] 4. Under the condition of mechanical stirring and ultrasonic vibration, prepare magnetic release agent A1, its composition and weight percentage are as follows: 10%wt of nano-iron powder emulsion, 90%wt of water-soluble release agent.

Embodiment 2

[0034] 1. Preparation of nano-Fe by chemical precipitation method 3 o 4 Magnetic particles with a particle size of 60nm;

[0035] 2. Under the condition of mechanical stirring and ultrasonic vibration, prepare magnetic particle emulsion, its composition and weight percentage are as follows: magnetic particle 92%wt, surfactant (PVA): 8%wt;

[0036] 3. Hydroxy silicone oil and polyethylene glycol lauryl ether are mixed to form a water-soluble release agent, the content of hydroxyl silicone oil is 90wt%, and the content of polyethylene glycol lauryl ether is 10wt%;

[0037] 4. Under the condition of mechanical stirring and ultrasonic vibration, prepare magnetic release agent A2, its composition and weight percentage are as follows: magnetic particle emulsion 12%wt, water-soluble release agent 88%wt.

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Abstract

The invention provides a mold-releasing agent. The mold-releasing agent comprises a water-soluble mold-releasing agent, an additive and a surfactant, wherein the additive is prepared from one or a mixture of two of a nano magnetic material and a nano metal material; by taking the total weight of the mold-releasing agent as a reference, the content of the additive is 1.6-24.5wt%. The mold-releasing agent can be applied to preparation of specially-shaped rubber hoses; more than two rubber hoses can be produced by coating the mold-releasing agent once, so that the mold-releasing agent is not liable to fall off in the process of producing the rubber hoses; and the consumption of the mold-releasing agent can be greatly reduced.

Description

technical field [0001] The invention belongs to the field of special-shaped rubber hose manufacture, and in particular relates to a release agent and a preparation method thereof. Background technique [0002] In daily life, rubber hoses, especially rubber hoses for automobiles, are used more and more widely. At present, the special-shaped rubber tube forming method is generally divided into three steps: 1. First, the hollow rubber tube blank is continuously extruded in the extruder; 2. The inner wall of the tube blank and the surface of the tube core corresponding to the tube blank configuration are coated. Release agent, and then insert the tube embryo into the tube core; 3. Push the tube embryo and the tube core into the steam vulcanization tank for vulcanization, and pull it out after vulcanization and setting. This process has the following disadvantages: during the process of threading and removing the pipe, the release agent is easily squeezed out or carried out from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/60
Inventor 孙敬
Owner BYD CO LTD