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Rubber product demolding agent and preparation method thereof

A rubber product and release agent technology, applied in the field of rubber product release agent and its preparation, can solve the problems of rubber product and mold pollution, large amount of particles or powder used, powder release agent is not enough, etc., to achieve easy spraying , less dosage, good adhesion effect

Inactive Publication Date: 2014-06-25
LIUZHOU YINGHANG AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of particles or powder used is large, and it is easy to float in the air, which is easy to cause air pollution or become an allergen, and also cause certain pollution to rubber products and molds
Therefore, powder release agent is not an ideal release agent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The release agent for rubber products of the present embodiment includes the following components by mass percentage: 0.3% polytetrafluoroethylene, 0.8% stearic acid, 0.1% carbon black, 0.5% sodium sulfur, and the balance of distilled water.

[0024] The preparation method of this rubber product release agent is:

[0025] (1) Mix polytetrafluoroethylene, stearic acid, carbon black, sodium sulfur and distilled water according to the above mass ratio;

[0026] (2) Stir the mixture for 30 minutes with a stirring device to form a uniform emulsion to obtain an emulsion-type release agent.

[0027] When in use, the release agent for rubber products can be directly sprayed on the mold.

Embodiment 2

[0029] The release agent for rubber products of the present embodiment comprises the following components by mass percentage: 0.8% polytetrafluoroethylene, 0.3% stearic acid, 0.2% carbon black, 0.8% sodium sulfur, and the remainder in distilled water.

[0030] The preparation method of this rubber product release agent is:

[0031] (1) Mix polytetrafluoroethylene, stearic acid, carbon black, sodium sulfur and distilled water according to the above mass ratio;

[0032] (2) Stir the mixture for 50 minutes with a stirring device to form a uniform emulsion to obtain an emulsion-type release agent.

[0033] When in use, the release agent for rubber products can be directly sprayed on the mold.

Embodiment 3

[0035] The release agent for rubber products of the present embodiment includes the following components by mass percentage: 0.6% polytetrafluoroethylene, 0.2% stearic acid, 0.15% carbon black, 0.7% sodium sulfur, and the balance of distilled water.

[0036] The preparation method of this rubber product release agent is:

[0037] (1) Mix polytetrafluoroethylene, stearic acid, carbon black, sodium sulfur and distilled water according to the above mass ratio;

[0038] (2) Stir the mixture for 20 minutes with a stirring device to form a uniform emulsion to obtain an emulsion-type release agent.

[0039] When in use, the mold can be soaked in the emulsion-type rubber product release agent.

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PUM

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Abstract

The invention discloses a rubber product demolding agent and a preparation method thereof. The rubber product demoldinng agent comprises the following ingredients by weight percent: 0.3 to 0.8 percent of polytetrafluoroethylene, 0.2 to 0.8 percent of stearic acid, 0.1 to 0.2 percent of carbon black, 0.5 to 1 percent of sodium sulfate and the balance being distilled water. The preparation method of the rubber product demolding agent comprises the following steps of (1) mixing polytetrafluoreothylene, stearic acid, carbon black, sodium sulfate and the distilled water according to the mass proportion; (2) stirring the mixture for 20 to 60 minutes by utilizing a stirring device to form uniform emulsion to obtain the emulsion demolding agent. The demoldinng agent is simple in ingredients and reliable in ingredient source; the preparation method is simple; the demolding agent is convenient to use, easy to paint and good in attachment performance and has the advantages of high temperature resistance, environmental friendliness, long service life and the like; moreover, the application range is wide, and the purpose of demolding a great amount of rubber and workpiece can be achieved.

Description

technical field [0001] The invention relates to a release agent, in particular to a release agent for rubber products and a preparation method thereof. Background technique [0002] As an important auxiliary agent in rubber production, the release agent is used to prevent the rubber product from sticking to the mold, causing the rubber product to tear or be damaged. The release agent can help the rubber products to be taken out of the mold smoothly, ensure the integrity and quality, reduce the loss of waste products, and improve production efficiency and economic benefits. [0003] At present, powder release agent is used more. Powder release agents involve granules or powders, such as calcium carbonate, talcum powder, etc. Granules or powder can form a barrier layer on the surface of the rubber product and the mold, so that the rubber product can be released from the mold smoothly. However, the amount of particles or powder used is relatively large, and it is easy to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/62
Inventor 陈永亮
Owner LIUZHOU YINGHANG AUTO PARTS
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