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Long-acting and environmental-protection release agent and preparation method thereof

An environmentally friendly, release agent technology, applied in the field of materials, can solve problems such as reducing production efficiency and increasing production processes, and achieve the effects of improving production efficiency, reducing production processes, and eliminating hidden dangers in production safety.

Inactive Publication Date: 2015-12-23
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the conditions of large-scale industrial production, this reaction will release more heat, which will bring serious safety hazards, and increase the production process and reduce production efficiency.

Method used

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  • Long-acting and environmental-protection release agent and preparation method thereof
  • Long-acting and environmental-protection release agent and preparation method thereof
  • Long-acting and environmental-protection release agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Preparation of emulsion system of chloroacetic acid

[0025] Add 40g of polyethylene glycol 400 and 3g of Carboresin 940 into 250g of distilled water, heat and dissolve evenly, add 10g of sodium lignosulfate, stir evenly, then add 100g of chloroacetic acid, and emulsify with a shearing machine to form a uniform emulsion to obtain Emulsion system of chloroacetic acid.

[0026] 2. Preparation of long-acting environment-friendly release agent

[0027] Under normal temperature conditions, add 150 g of hexamethylenediamine dropwise to the emulsion system of chloroacetic acid obtained in step 1. After the dropwise addition, react at room temperature for 2 hours to obtain a long-acting environmentally friendly isolation product with a light yellow viscosity of 1.58 Pa·s. agent.

Embodiment 2

[0029] 1. Preparation of emulsion system of chloroacetic acid

[0030] Add 20g of polyethylene glycol 300 and 2g of Carboresin 934 into 200g of distilled water, heat and dissolve evenly, add 5g of sodium lauryl sulfate, stir evenly, then add 100g of chloroacetic acid, emulsify with a shearing machine until a uniform emulsion is formed , to obtain the emulsion system of chloroacetic acid.

[0031] 2. Preparation of long-acting environment-friendly release agent

[0032] Under normal temperature conditions, add 100 g of hexamethylenediamine dropwise to the emulsion system of chloroacetic acid obtained in step 1. After the dropwise addition, react at room temperature for 2 hours to obtain a long-acting environment-friendly isolation product with a light yellow viscosity of 1.53 Pa s. agent.

Embodiment 3

[0034] 1. Preparation of emulsion system of chloroacetic acid

[0035] Add 30g of polyethylene glycol 200 and 5g of Carboresin 940 into 400g of distilled water, heat and dissolve evenly, add 10g of sodium dodecylbenzene sulfate, stir evenly, then add 100g of chloroacetic acid, emulsify with a shearing machine until uniform Emulsion, to obtain the emulsion system of chloroacetic acid.

[0036] 2. Preparation of long-acting environment-friendly release agent

[0037] Under normal temperature conditions, add 150 g of hexamethylenediamine dropwise to the emulsion system of chloroacetic acid obtained in step 1. After the dropwise addition, react at room temperature for 2 hours to obtain a long-acting environment-friendly isolation product with a light yellow viscosity of 1.51 Pa·s. agent.

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Abstract

The invention discloses a long-acting and environmental-protection release agent and a preparation method thereof. The preparation method of the release agent comprises the following steps: carrying out shearing emulsification on Carbomer resin, polyethylene glycol and an aqueous solution of chloroacetic acid under the action of an anionic surfactant to form a stable chloroacetic acid emulsion system, and slowly adding hexylenediamine at normal temperature through adopting an emulsion synthesis process to prepare the release agent. The emulsion reaction obstructs molecular bumping rate of chloroacetic acid and hexylenediamine, so the reaction rate is alleviated, thereby the reaction is carried out in normal temperature air atmosphere; the release agent is a non-migratory long-acting release agent, can coordinate with iron and copper ions on the surface of a die through an association effect to form a hydrophilic and oil repellent firm micro-film on the surface of the die, so contact between an oil-soluble material and the die is reduced, the thickness of the film is not reduced, and the demolding frequency under high temperature conditions reaches 40 or above; and the release agent also has the advantages of high decomposition temperature, non-volatility and no influences on the quality of performances of a finished product.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a release agent applied to oil-soluble materials, especially high-viscosity asphalt materials, and a preparation method thereof. Background technique [0002] As a functional material, the release agent makes the surface of the mold substrate have a very low surface energy, which allows the molded parts to fall off quickly and easily, and the release agent must not contain any components that affect the quality of the final product. At present, there are many kinds of release agents: (1) Inorganic substances, which are temporary release agents. Commonly used are graphite powder, talc powder, mica powder, molybdenum disulfide and other powders, and the isolation times are 1 to 2 times; (2) organic matter isolation agents include fatty acids, fatty acid soaps, various waxes, ethylene glycol, etc. This type of release agent also acts as a lubricant, and the number of ...

Claims

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Application Information

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IPC IPC(8): C07C227/08C07C229/16B29C33/60
Inventor 陈亚芍张冬梅杨杰向豪
Owner SHAANXI NORMAL UNIV
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