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Aqueous emulsion silicone mold release agent and preparation method and application thereof

A water-based emulsion and silicone technology, which is applied in the field of water-based emulsion silicone mold release agent and its preparation, can solve the problems of poor mold release performance stability, large coating operation odor, poor storage stability, etc., and achieve less residue, reduce The effect of cleaning cycle and coating odor is small

Active Publication Date: 2018-01-23
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantages of the prior art, such as poor release performance stability after dilution with water-based release agent, large coating operation odor, easy fouling in the mold, and poor storage stability.

Method used

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  • Aqueous emulsion silicone mold release agent and preparation method and application thereof
  • Aqueous emulsion silicone mold release agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Add polyethylene oxide, propane block and C11-C18 carbon chain alcohol to graft modified silicone resin 20.0Kg and polyethylene oxide and propylene oxide modified silicone wax (additive) 3.5 Kg into 10.0Kg of deionized water, heated to 85°C to melt and stirred at 600rpm for 25min to mix evenly.

[0025] 2. Keep the molten mixture in step 1 at 80°C, and slowly add polyethylene oxide and propane graft-modified liquid silicone emulsifier 4.0Kg under stirring at 3000rpm, and continue stirring at 90°C after the addition is complete 30min, a homogeneous mixture was obtained.

[0026] 3. Stir the mixture uniformly in the above step 2, keep the temperature at 80°C, transfer to the homogenizer and stir at a speed of 20,000rpm for 35min, then transfer to a high-speed disperser, and slowly add 62.5Kg of deionized at a speed of 800rpm water, and continue to stir for 45 minutes to 30°C to obtain the finished aqueous emulsion release agent.

[0027] The composition of the obtain...

Embodiment 2

[0029] 1. Add polyethylene oxide, propane block and C11-C18 carbon chain alcohols to graft modified silicone resin 18.0Kg and polyethylene oxide and propylene oxide modified silicone wax (additive) 2.0 Kg into 10.0Kg of deionized water, heated to 80°C to melt and stirred at a low speed of 350rpm for 90min to mix evenly.

[0030] 2. Keep the molten mixture in step 1 at 80°C, and slowly add polyethylene oxide and propane graft-modified liquid silicone emulsifier 2.8Kg under high-speed stirring at 1200rpm. After the addition is complete, continue at 80°C Stir for 30 min to obtain a homogeneous mixture.

[0031] 3. Stir the mixture uniformly in the above step 2, keep the temperature at 80°C, transfer to the homogenizer and stir at a speed of 10000rpm for 15min, then transfer to a high-speed disperser, and slowly add 77.2Kg of deionized at the same time at a speed of 300rpm water, and continue stirring for 20 minutes to 30°C to obtain a finished aqueous emulsion release agent.

...

Embodiment 3

[0034] 1. Add 18.5Kg of silicone resin grafted together with polyethylene oxide, propane block and C11-C18 carbon chain alcohol and 3.5Kg of silicone wax (additive) modified by polyethylene oxide and propylene oxide to In 10.0Kg of deionized water, heat to 65°C to melt and stir at a low speed of 250rpm for 60min to mix evenly.

[0035] 2. Keep the molten mixture in step 1 at 80°C, and slowly add 2.0Kg of liquid silicone emulsifier grafted with polyethylene oxide and propane under high-speed stirring at 1200rpm. After the addition is complete, continue stirring at 70°C 72 min resulted in a homogeneous mixture.

[0036] 3. Stir the mixture evenly in the above step 2, keep the temperature at 62°C, transfer to the homogenizer and stir at a speed of 15000rpm for 20min, then transfer to a high-speed disperser, and slowly add 66Kg of deionized water at a speed of 300rpm , and then continue to stir for 20min to 30°C to obtain a finished aqueous emulsion release agent.

[0037] The c...

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Abstract

The invention discloses an aqueous emulsion organosilicon mold lubricant and a preparation method thereof. The mold lubricant comprises the following components by mass: 10-20 parts of modified organosilicon high-molecular resin, 0.5-3.5 parts of an additive, 0.2-4 parts of an organosilicon emulsifier, and 75-90 parts of deionized water. the modification organosilicon high-molecular resin is the organic silicone resin obtained by co-grafting polyethylene oxide, propane block and C11-C18 carbon chain alcohol on an organic silicone resin main chain; the additive is organosilicon wax with softening point being 50-75 DEG C which is characterized in that polyethylene oxide and epoxypropane are blocked on the organic silicone resin main chain; and the organosilicon emulsifier is polyethylene oxide and propane block co-grafted liquid organosilicon. According to the invention, construction adaptability is good, coating smell is little, mother liquor dilution stability is good, residual quantity of the mold lubricant in a mold is little, and the excellence performances such as adhesive force between sole and a modification coating layer as well as good storage stability cannot be influenced.

Description

technical field [0001] The invention belongs to the field of water-based mold release agents for shoe sole production, and more specifically relates to a water-based emulsion silicone mold release agent and its preparation method and application. Background technique [0002] Compared with solvent-based release agents, water-based release agents have the advantages of environmental protection and greenness, and at the same time have the advantages of safe operation and storage, and less harm to human body during coating. Therefore, it is gradually widely used in actual production, such as water-based emulsion release agent has also been widely used in the shoe sole manufacturing industry. However, there are many deficiencies in the application performance of the water-based release agent used for shoe soles, and further improvement and perfection are urgently needed. [0003] The existing shoe soles have poor stability after being diluted with a water-based mold release age...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/64
CPCB29C33/64
Inventor 宋巍许燕滨姬文晋邱雪清颜欢殷莉
Owner GUANGDONG UNIV OF TECH