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A kind of high temperature couplant and preparation method thereof

A couplant, high temperature technology, used in instruments, measuring devices, using ultrasonic/sonic/infrasonic waves, etc., can solve the problems of easy change of physical state, unsatisfactory high temperature resistance, poor high temperature deformation resistance, etc., to achieve corrosion resistance. The detection effect is accurate, the contact is good, and the physical state is stable.

Active Publication Date: 2019-03-29
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing couplants have the following problems: First, the existing high-temperature couplants are expensive, leading to an increase in the cost of corrosion monitoring
Secondly, the existing high-temperature couplant has unsatisfactory high-temperature resistance, and it is prone to coking and smoking when the temperature is higher than 200°C
Thirdly, the existing high-temperature couplants have poor resistance to high-temperature deformation, and the physical state is prone to change under high-temperature conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Examples 1-6 are specific implementations of a high-temperature couplant and its preparation method of the present invention. Wherein embodiment 1 is the best embodiment. The perfluoropolyether grease used in Examples 1-6 is U.S. DuPont GPL 227.

[0023] Example 1

[0024] The high-temperature coupling agent is composed of the following raw materials in parts by weight: 41 parts of methyl ethoxy silicone oil, 35 parts of perfluoropolyether grease, 5.8 parts of anti-aging agent RD, 3.2 parts of anti-scorch agent CTP, 3 parts of titanium dioxide, kaolin 7 parts of graphite powder, 5 parts of graphite powder;

[0025] The preparation method comprises the following steps:

[0026] 1) Put the silicone oil, anti-aging agent and anti-scorch agent weighed by weight into a container, and stir and mix evenly at a temperature of 30-40 ° C to obtain a mixture;

[0027] 2) At a temperature of 50~60°C, add lubricating grease and fillers to the mixture, stir and mix evenly, and th...

Embodiment 2

[0029] The high-temperature coupling agent consists of the following raw materials in parts by weight: 42 parts of methyl ethoxy silicone oil, 34 parts of perfluoropolyether grease, 5 parts of anti-aging agent RD, 4 parts of anti-scorch agent CTP, 3 parts of titanium dioxide, kaolin 7 parts of graphite powder, 6 parts of graphite powder;

[0030] The preparation method is the same as in Example 1.

Embodiment 3

[0032] The high-temperature coupling agent is composed of the following raw materials in parts by weight: 41 parts of methyl ethoxy silicone oil, 36 parts of perfluoropolyether grease, 6 parts of anti-aging agent RD, 3 parts of anti-scorch agent CTP, 3 parts of titanium dioxide, kaolin 6 parts of graphite powder, 5 parts of graphite powder;

[0033] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a high-temperature coupling agent and a preparation method thereof, which belong to the technical field of industrial coupling agents. The high-temperature coupling agent is composed of the following raw materials: by weight, 40 to 43 parts of silicone oil, 33 to 37 parts of lubricating grease, 4 to 7 parts of an anti-aging agent, 2 to 5 parts of a scorch retarder and 12 to 18 parts of a filler, wherein the filler is formed by mixing titanium dioxide, kaolin powder and graphite powder according to a weight ratio of 2-4 to 5-8 to 4-7; the scorch retarder is N-cyclohexylthiophthalimide; and the anti-aging agent is antioxidant RD. the high-temperature coupling agent has a high heat-resisting temperature and high-temperature stability, and thickness measurement accuracy in a high-temperature condition can be ensured.

Description

technical field [0001] The invention belongs to the technical field of industrial coupling agents, and in particular relates to a high-temperature coupling agent and a preparation method thereof. Background technique [0002] Industrial couplant is used to exclude the air between the probe and the measured object, so that the ultrasonic wave can effectively penetrate the workpiece to achieve the purpose of detection. If the type is selected or used improperly, it will cause errors or the coupling mark will flicker, making it impossible to measure. High-temperature workpieces should use industrial high-temperature couplant. At present, there are many petrochemical enterprises in our country, and the corrosion of equipment is also very serious. A large number of corrosion monitoring equipment is needed, and high-temperature couplants are also widely used. [0003] The existing couplants have the following problems: firstly, the existing high-temperature couplants are expensi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B17/02
CPCG01B17/02
Inventor 赵旭东曹雪峰胡洋王玉花付士义吴忠华
Owner CHINA PETROLEUM & CHEM CORP
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