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Anti-sticking agent for stainless steel surface coating of polyreactor and preparation method of anti-sticking agent

A polymerization reaction kettle and surface coating technology, which is applied in coatings, hyaluronic acid coatings, chitin polysaccharide coatings, etc., can solve the problem of ineffective prevention of polymer and stainless steel surface bonding, short cleaning period of polymerization kettles, Poor performance of anti-sticking agent and other problems, to achieve excellent anti-sticking effect, improve the cycle of cleaning the kettle, and improve the appearance of the product

Pending Publication Date: 2022-04-29
宁夏顺邦达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The application provides an anti-adhesive agent for the stainless steel surface coating of the polymerization reactor and its preparation method, which solves the problem that the traditional anti-adhesive agent can not effectively prevent the adhesion of the polymer and the surface of the stainless steel after it is sprayed on the inner wall of the polymerization reactor. , leading to the poor performance of the anti-sticking agent in practical applications, and the problem of short cleaning cycle of the polymerization kettle

Method used

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  • Anti-sticking agent for stainless steel surface coating of polyreactor and preparation method of anti-sticking agent
  • Anti-sticking agent for stainless steel surface coating of polyreactor and preparation method of anti-sticking agent
  • Anti-sticking agent for stainless steel surface coating of polyreactor and preparation method of anti-sticking agent

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preparation example Construction

[0030] A kind of preparation method of anti-sticking still agent of stainless steel surface coating of polymerization reaction kettle, it is characterized in that, comprises the following steps:

[0031] S1, add deionized water to the synthesis kettle to provide better acid-base balance reaction conditions for the product, reduce the impact of other pollutants, start stirring and heating to improve the uniformity of heating, heat the deionized water, and synthesize The kettle is heated to 90-95°C to improve the dissolution efficiency and reaction efficiency;

[0032] S2, adding aqueous sodium hydroxide solution to the synthesis kettle through the liquid caustic head tank to increase the pH value of the reaction solution;

[0033] S3, add mixed phenol and sodium bisulfite to the solid feeding port of the synthesis kettle, the polymerization inhibition efficiency of the main active ingredients of the anti-sticking kettle agent can be greatly improved by mixing phenol, and sodium...

specific Embodiment approach 1

[0039]Add 910 kilograms of deionized water into the synthesis kettle, start stirring and start to heat up, add 98 kilograms of sodium hydroxide aqueous solution through the liquid alkali head tank, add 100 kilograms of a-naphthol and p-tert-butylcatechol, m- The mixture of hydroquinone and 25 kg of sodium bisulfite, start airtight heating, control the reaction temperature at 90-95 ° C, after the material is completely dissolved, start to add 200 kg of formaldehyde through the formaldehyde high level tank, keep the temperature for 1 hour after adding formaldehyde, Allow the reaction to fully complete. Add 300 kg of ethanol and 10 kg of chitin, 25 kg of polyvinyl alcohol and continue to keep warm for about 2 hours to completely dissolve the material.

specific Embodiment approach 2

[0040] Add 880 kilograms of deionized water into the synthesis kettle, start stirring and start to heat up, add 98 kilograms of sodium hydroxide aqueous solution through the liquid alkali head tank, add 100 kilograms of a-naphthol and p-tert-butylcatechol, m- The mixture of hydroquinone and 25 kg of sodium bisulfite, start airtight heating, control the reaction temperature at 90-95 ° C, after the material is completely dissolved, start to add 200 kg of formaldehyde through the formaldehyde high level tank, keep the temperature for 1 hour after adding formaldehyde, Allow the reaction to fully complete. Add 300 kg of ethanol and 10 kg of chitin, 25 kg of polyvinyl alcohol and continue to keep warm for about 2 hours to completely dissolve the material.

[0041] Analysis index of finished product of the present invention:

[0042] Appearance: light yellow transparent liquid;

[0043] Solid content: (10±0.5)%; PH value: 12-14;

[0044] Density: 1.00-1.03(g / ml);

[0045] This pr...

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Abstract

The invention discloses an anti-sticking agent for a stainless steel surface coating of a polymerization reaction kettle. The anti-sticking agent is prepared from the following raw materials in parts by weight: 52%-56% of deionized water, 3%-6% of a sodium hydroxide aqueous solution, 16%-20% of ethanol, 11%-14% of formaldehyde, 5%-7% of mixed phenol, 1%-2% of sodium hydrogen sulfite, 0.1%-1% of chitin and 1%-2% of polyvinyl alcohol. A preparation method of the anti-sticking agent for the stainless steel surface coating of the polymerization reaction kettle comprises the following steps: S1, adding deionized water into a synthesis kettle, starting stirring and heating, and heating the deionized water; aiming at the problems of the traditional anti-sticking agent, the anti-sticking agent is improved, after the improved anti-sticking agent is sprayed on the stainless steel surface layer of the polymerization reaction kettle, the anti-sticking agent shows an excellent anti-sticking effect, the service life is long, the coating effect is good, and the kettle cleaning period is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of anti-sticking agent, in particular to an anti-sticking agent for a stainless steel surface coating of a polymerization reactor and a preparation method thereof. Background technique [0002] Most polymers such as polyvinyl chloride, polystyrene, polymethyl methacrylate, and ABS generally choose suspension method or emulsion method for polymerization. During the polymerization production process, the inner wall of the stainless steel reactor, heat exchanger, baffle, etc. are easily Bonded by the polymerized materials, these bonded materials are not easy to fall off on their own, and require regular high-pressure cleaning, and affect the heat transfer effect of the stainless steel reactor during the production process. Severe sticking of the reactor will also lead to safety accidents. The sticky matter will partly fall off as time gradually increases, and some of the fallen sticky matter will be mixed into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D129/04C09D105/08C09D7/63C09D7/61
CPCC09D129/04C09D7/63C09D7/61C08L5/08C08K5/13C08K3/30
Inventor 朱国成刘振余朱国军解玉玺
Owner 宁夏顺邦达新材料有限公司
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