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Preparation method and use method of high-temperature-resistant organic steam sealing glue

A technology of organic steam and sealing glue, applied in surface pretreatment bonding method, bonding method, adhesive and other directions, can solve the problems of long curing time, complex preparation process, long test period, etc., to shorten the test period and operation. Simple process and the effect of improving test efficiency

Inactive Publication Date: 2021-02-05
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Collodion is also known as nitrocellulose, pyroviscose, etc. The disadvantages of sealing this material are: firstly, the preparation process is complicated, the curing time is long, and the test cannot be carried out in time after the sample is received, and the test period is long; secondly, the boiling point of collodion is about 170 ℃, its use temperature should not be too high, and there is a hidden danger of air leakage during high-temperature tests; third, collodion glue is extremely flammable, and it can cause combustion and explosion when exposed to open flames and high heat energy, and can spontaneously ignite, which is a first-class flammable and explosive product; Fourth, due to the ether containing anesthetic components, it affects the function of the central system of the human body and causes certain damage to the health of the operator.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Weigh 40% cellulose acetate and 60% acetone according to the mass ratio. Mix the weighed materials, seal and let stand for about 15-30 minutes. Use a glass rod to fully stir the mixed sealant for about 3 to 10 minutes to form a uniform translucent mixed glue.

[0013] Wipe the interface between the flask mouth of the tester and the sealing stopper with absorbent cotton, so that the contact sealing surface is clean and free of pollutants. Dip the glue solution with a glass rod and apply it evenly on the interface between the flask mouth of the tester and the sealing stopper, and the coating thickness is about 2 to 3 mm. Curing at room temperature for 15-20 minutes until the sealant forms a tough film.

Embodiment 2

[0015] Weigh 50% cellulose acetate and 50% acetone according to the mass ratio. Mix the weighed materials, seal and let stand for about 15-30 minutes. Use a glass rod to fully stir the mixed sealant for about 3 to 10 minutes to form a uniform translucent mixed glue.

[0016] Wipe the interface between the flask mouth of the tester and the sealing stopper with absorbent cotton, so that the contact sealing surface is clean and free of pollutants. Dip the glue solution with a glass rod and apply it evenly on the interface between the flask mouth of the tester and the sealing stopper, and the coating thickness is about 2 to 3 mm. Curing at room temperature for 15-20 minutes until the sealant forms a tough film.

Embodiment 3

[0018] Weigh 60% cellulose acetate and 40% acetone according to mass ratio. Mix the weighed materials, seal and let stand for about 15-30 minutes. Use a glass rod to fully stir the mixed sealant for about 3 to 10 minutes to form a uniform translucent mixed glue.

[0019] Wipe the interface between the flask mouth of the tester and the sealing stopper with absorbent cotton, so that the contact sealing surface is clean and free of pollutants. Dip the glue solution with a glass rod and apply it evenly on the interface between the flask mouth of the tester and the sealing stopper, and the coating thickness is about 2 to 3 mm. Curing at room temperature for 15-20 minutes until the sealant forms a tough film.

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PUM

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Abstract

The invention belongs to the field of glue solution preparation, and particularly relates to a preparation method and a use method of a high-temperature-resistant organic steam sealing glue. The technical scheme is as follows: the preparation method of the high-temperature-resistant organic steam sealing glue comprises the following raw materials in percentage by mass: 40-60% of cellulose acetateand 40-60% of acetone. The preparation method comprises the following steps of weighing cellulose acetate and acetone by using a balance, mixing the weighed cellulose acetate and acetone, sealing andstanding for 15-30 minutes, and fully stirring the mixed cellulose acetate and acetone for 3-10 minutes by using a glass rod to form a uniform semitransparent mixed glue solution. The product providedby the invention can be applied to various distillation test connecting parts, and plays a role in sealing high-temperature organic steam.

Description

technical field [0001] The invention belongs to the field of glue preparation, and in particular relates to a preparation method and a use method of a high-temperature-resistant organic vapor sealing glue. Background technique [0002] The distillation test mainly adopts three tests: GB / T 6536 "Determination of Distillation Range Characteristics of Petroleum Products at Atmospheric Pressure", GB / T 3146.1 "Determination of Distillation Range of Industrial Aromatics and Related Materials", and GB / T 255 "Determination of Distillation Range of Petroleum Products" method. The sealing requirements for the tester in the standard are specified as follows: [0003] 1) GB / T 6536 and GB / T 3146.1 stipulate that the sealing method for the mouth of the temperature measuring flask is to plug it tightly with a close-fitting stopper. In the actual test process, with the continuous generation of high-temperature organic vapor and heat evaporation, the pressure continues to increase, and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J101/12C09J11/00C09J5/02C09J5/00
CPCC09J5/00C09J5/02C09J11/00C09J101/12
Inventor 邢彬李冬梅王杰张丽娜孙自超
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION