Organosilicon microemulsion antisticking agent and preparation method thereof

A technology of silicone and mold release agent, which is applied in the direction of manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of poor air quality in the working environment, poor ventilation in the working environment, and increased safety management costs, etc., to achieve demoulding Good effect, strong peelability, low freezing point

Inactive Publication Date: 2009-04-15
武汉亿强科技开发股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional mold release agents generally use aerosol silicone oil (anhydrous, flammable, and explosive gas). Silicone oil has low viscosity, weak surface tension, small surface energy, and strong film-forming ability to prevent wax molds from spraying wax. When bonding with the mold, the molding rate of the wax mold is guaranteed, and the demoulding effect is good, but the hazards are also very serious, specifically the following three disadvantages: 1. Aerosol silicone oil, which belongs to the category of pressure container filling products, Inflammable and explosive, there are great safety risks in the process of transportation, storage and production. A little carelessness in management may cause explosion or fire, which greatly increases the cost of safety management; 2. Aerosol silicone oil, when using spray

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Silicone microemulsion release agent, which consists of the following components: 20% dimethylcyclosiloxane, 7% alkyl triethoxysilane, 6% fatty alcohol polyoxyethylene ether, 0.5 ethylenediaminetetraacetic acid %, dodecylbenzenesulfonic acid 8%, deionized water 58.5%, each percentage is a weight percentage, and the pH value is neutral.

[0019] The preparation method of organosilicon microemulsion mold release agent, it comprises the following steps: 1. Add 20% of dimethylcyclosiloxane, 7% of alkyltriethoxysilane, 0.5% of ethylenediaminetetraacetic acid in homogenizer %, deionized water 29%, drop into 4% of dodecylbenzenesulfonic acid as catalyst, adjust the pH value to 5-7, add emulsifier fatty alcohol polyoxyethylene ether 3%, at a speed of 2800 rpm, Under the pressure of 40-50mpa, homogenize for 20-50 minutes to make a homogeneous prefabricated body emulsion for use; ②. Add 29.5% deionized water and 3% emulsifier fatty alcohol polyoxyethylene ether to the reaction ke...

Embodiment 2

[0021] Silicone microemulsion release agent, which consists of the following components: dimethylcyclosiloxane 35%, alkyl triethoxysilane 3%, fatty alcohol polyoxyethylene ether 2%, ethylenediaminetetraacetic acid 0.1 %, dodecylbenzenesulfonic acid 4%, deionized water 55.9%, each percentage is a weight percentage, and the pH value is neutral.

[0022] The preparation method of silicone microemulsion release agent is the same as in Example 1.

Embodiment 3

[0024] Silicone microemulsion release agent, which consists of the following components: dimethylcyclosiloxane 28.5%, alkyl triethoxysilane 7%, fatty alcohol polyoxyethylene ether 6%, ethylenediaminetetraacetic acid 0.5% %, dodecylbenzenesulfonic acid 8%, deionized water 50%, each percentage is a weight percentage, the sum of each component is 100%, and the pH value is neutral.

[0025] The preparation method of silicone microemulsion release agent is the same as in Example 1.

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PUM

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Abstract

The invention relates to an organosilicon micro-emulsion mould release agent which consists of the following compositions in weight percentage: 20 to 35 percent of dimethyl cyclic siloxane, 3 to 7 percent of alkyl triethoxy silane, 2 to 6 percent of fatty alcohol-polyoxyethylene ether, 0.1 to 0.5 percent of ethylenediamine tetracetic acid, 4 to 8 percent of dodecyl benzene sulfonic acid and 50 to 70 percent of deionized water; the sum of the compositions is 100 percent; and the PH value is neutral. The organosilicon micro-emulsion mould release agent overcomes the disadvantages that the prior gaseous mould release agent is inflammable and explosive, pollutes environment and the like. The organosilicon micro-emulsion mould release agent has the advantages of convenient use, good mould release effect, low cost and the like. The organosilicon micro-emulsion mould release agent also releases a method for preparing the organosilicon micro-emulsion mould release agent.

Description

technical field [0001] The invention relates to an organosilicon microemulsion mold release agent, which is used in the mold release process of precision casting wax molds. The invention also discloses a preparation method of the silicone microemulsion release agent. Background technique [0002] my country is a developing country, and the manufacturing industry accounts for a relatively large proportion of the national economy. Products such as mechanical casting, hardware, injection molded toys, rubber, plastic, glass, stamping parts, etc. are integrated into the world market, and the economy is in line with international standards. This provides an opportunity for the rapid development of my country's manufacturing industry and the improvement of industrial technology. Modern manufacturing is developing in the direction of "safety, environmental protection, energy saving, and science". Enterprises keep up with international advanced technology, improve management, activel...

Claims

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Application Information

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IPC IPC(8): B22C3/00C08G77/06
Inventor 陈执祥
Owner 武汉亿强科技开发股份有限公司
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