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Emulsified anti-rust composition as well as preparation method and application thereof

The technology of a combination agent and an emulsion stabilizer is applied in the field of emulsification and antirust combination agent and its preparation. The effect of good stability, low production cost and low price

Active Publication Date: 2022-01-14
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are three main types of release oils available in China. The first type is soap release oil, which is saponified by adding alkali to animals and plants. The adhesion is small, and it is easy to fall off after friction, so the demoulding effect cannot be achieved, and it is also easy to rust the surface of the steel mold; moreover, this kind of demoulding oil contains vegetable oil, which is easy to cause rancidity, mildew, blackening, and affects the concrete. surface color
The second largest type is oil release oil, whose main components are engine oil, waste engine oil or a mixture of lubricant oil and waste engine oil. The disadvantage of this type of release oil is that it will pollute concrete products, and the oil can also be mixed with The alkali in the cement undergoes saponification reaction and causes the surface of the concrete to pulverize, thereby reducing the durability of the concrete
The third type is the combination of the first two types, as the Chinese patent (publication number is CN1021972C) has used edible vegetable oil foot soap, and the Chinese patent (publication number is CN1975270A) has used salad oil, and this type of release oil still cannot overcome above defects

Method used

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  • Emulsified anti-rust composition as well as preparation method and application thereof
  • Emulsified anti-rust composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The emulsified antirust composition of this embodiment comprises the following components in parts by mass: 80% naphthenic acid, 17% alkali, 1.5% sorbitan monooleate and 1.5% emulsion stabilizer;

[0022] Among them, the acid value of naphthenic acid is 175-270mgKOH / g, the content of inorganic salt is not more than 1wt.%, and the chloride is not more than 0.3wt.%.

[0023] The base is sodium hydroxide;

[0024] Emulsion stabilizer is triethanolamine.

[0025] The preparation method of the emulsified antirust composition of this embodiment comprises the following steps: react naphthenic acid and alkali at 40°C for 0.5h to obtain sodium naphthenate and water, continue to add emulsified antirust agent and emulsified stabilizer, and stir for 1h Afterwards, the antirust composition is obtained.

Embodiment 2

[0027] The emulsified mold release oil of this embodiment includes the following components in terms of mass percentage: 70% of the second-line extraction oil, 6% of the emulsified antirust composition prepared in Example 1, and 24% of water.

[0028] The preparation method of the emulsified release oil of this embodiment includes the following steps: after heating the oil extracted from the second line to 50-60°C, add the emulsified anti-rust composition and water, stir for 1 hour, cool and filter to obtain the emulsified release oil Oil.

Embodiment 3

[0030] The emulsified release oil of this embodiment comprises the following components in terms of mass percentage: 73% of the second-line extraction oil, 6% of the emulsified anti-rust composition prepared in Example 1 and 21% of water.

[0031] The preparation method of the emulsified release oil of the present embodiment is the same as in Example 2.

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Abstract

The invention provides an emulsified anti-rust combination agent as well as a preparation method and application thereof, and relates to the technical field of building concrete pouring. The emulsified anti-rust combination agent provided by the invention comprises the following components in percentage by mass: 70-85% of naphthenic acid, 15-30% of alkali, 1-3% of sorbitan monooleate and 1-3% of an emulsion stabilizer. According to the technical scheme, the naphthenic acid, the alkali, the sorbitan monooleate and the emulsion stabilizer are compounded according to a specific proportion to prepare the emulsified anti-rust combination agent, and the prepared emulsified anti-rust combination agent can be used as a raw material of emulsified demolding oil, so that the emulsified demolding oil has good anti-rust and demolding effects, and the appearance and texture of the emulsified demolding oil cannot be influenced.

Description

technical field [0001] The invention relates to the technical field of building concrete pouring, in particular to an emulsified antirust combination agent and a preparation method and application thereof. Background technique [0002] In concrete pouring, concrete products stick to the formwork, which not only easily damages the products, but also makes it difficult to remove and clean the formwork. Therefore, the use of release oil is very important in the production of concrete products. There are three main types of release oils available in China. The first type is soap release oil, which is saponified by adding alkali to animals and plants. The adhesion is small, and it is easy to fall off after friction, so the demoulding effect cannot be achieved, and it is also easy to rust the surface of the steel mold; moreover, this kind of demoulding oil contains vegetable oil, which is easy to cause rancidity, mildew, blackening, and affects the concrete. The color of the surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/02C10M141/06C10M173/02B28B7/38C10N40/36C10N30/12
CPCC10M141/02C10M141/06C10M173/02B28B7/384C10M2207/16C10M2207/289C10M2201/062C10M2203/1006C10M2207/021C10N2040/36C10N2030/12C10N2030/24C10N2010/02C10N2010/04Y02W30/91
Inventor 陈明
Owner CHINA PETROLEUM & CHEM CORP
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