Ultrasonic coupling agent and preparation method and application thereof

An ultrasonic coupling agent and lubricant technology, applied in the field of ultrasonic coupling agent and its preparation, can solve the problems of polluting the workpiece surface, poor adhesion effect, and affecting detection results, etc., achieve high signal-to-noise ratio, improve flaw detection depth, Good sound permeability

Active Publication Date: 2021-07-23
GUANGZHOU MECHANICAL ENG RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Industrial couplants are mostly oil-based couplants, such as engine oil, grease, transformer oil, etc., which are difficult to clean during use, will pollute the surface of the workpiece, and affect the appearance of the product; medical couplants generally have a thinner solution and are coated on special engineering plastics The adhesion effect is not good. When sliding detection, there will be a gap between the working surface and the probe, which will affect the detection result, and the lubricity is poor, and the probe is easy to wear; when water is used as the couplant, due to the low viscosity of water, it cannot adhere to the surface of the workpiece , can only be operated by immersing both the probe and the workpiece in water, and the detection is often limited by the shape and size of the workpiece

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  • Ultrasonic coupling agent and preparation method and application thereof
  • Ultrasonic coupling agent and preparation method and application thereof
  • Ultrasonic coupling agent and preparation method and application thereof

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Embodiment Construction

[0052] The technical solutions of the present invention will be further described below in conjunction with specific examples.

[0053] The present invention provides an ultrasonic coupling agent, the mass parts of its preparation raw materials are shown in Table 1 below, and the preparation method includes the following steps:

[0054] (1) Add phthalic anhydride and glyceryl monostearate into a round-bottomed flask with a reflux device at a mass ratio of 1:2.2, and reflux for 2 hours under nitrogen protection at about 125°C to obtain phthalic acid Glyceryl monostearate (PAGM);

[0055] (2) Take 12 parts by mass of PAGM prepared in step (1), dissolve it in 12 parts by mass of ethanol, add 1 part by mass of sodium hydroxide and 100 parts by mass of deionized water, fully mix, and place the mixture at about 60 ° C Stir for about 2.5 hours under the same conditions to obtain a liquid lubricant.

[0056] (3) After wetting the carbomer with a small amount of ethanol, add it to de...

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Abstract

The invention discloses an ultrasonic coupling agent and a preparation method and application thereof. The ultrasonic coupling agent is prepared from the following raw materials: a wetting agent, a lubricating agent and a gel matrix, and the lubricating agent contains glyceryl monostearate phthalate. The ultrasonic coupling agent is water-based gel, has moderate viscosity, good adhesion effect on engineering plastics, high signal-to-noise ratio and good sound transmission, and can improve the flaw detection depth; the ultrasonic coupling agent is smooth in texture and low in friction coefficient, and the workpiece and the probe are prevented from being scratched when sliding under pressure.

Description

technical field [0001] The invention belongs to the field of nondestructive testing, and in particular relates to an ultrasonic coupling agent and its preparation method and application. Background technique [0002] Engineering plastics are widely used in many fields because of their unique and excellent comprehensive properties. Engineering plastics are mainly produced by injection molding, extrusion, compression molding, etc. Many factors such as molding process, molding die, and melt flow characteristics often lead to porosity defects such as pores, bubbles, and cracks in the product or on the surface, which damages the material properties. Ultrasonic flaw detection is one of the important non-destructive testing methods to ensure the quality of industrial products. It has been very mature in metal materials and medical fields. With the development of special industries, ultrasonic flaw detection will be more and more widely used in engineering plastics. [0003] Compar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/02C08K5/12C08K5/053C08K5/17
CPCC08K5/12C08K5/053C08K5/17C08L33/02
Inventor 郭云龙熊文杰李国一叶素娟谭锋王勇黄兴
Owner GUANGZHOU MECHANICAL ENG RES INST
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