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Preparation of a thiosulfinate compound and its application in antifouling coatings

A technology of thiosulfinate and compounds, applied in antifouling/underwater coatings, coatings, organic chemistry, etc., can solve problems such as shortened life, accelerated corrosion of sea-related facilities components, increased navigation resistance, etc., to achieve Good film-forming properties and anti-fouling properties, remarkable eco-friendly performance, simple preparation method and process

Active Publication Date: 2020-04-14
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Marine organisms, such as barnacles, algae, oysters, mussels, limeworms, enteromorpha, sea squirts, and sea anemones, will adhere and deposit large areas without selection on the surfaces of hulls, marine structures, and breeding nets. As a result, the following hazards are caused: 1. Increase the friction of the bottom of the ship, causing increased navigational resistance, fuel consumption and carbon dioxide and other pollutant emissions; 2. Accelerating the corrosion of sea-related facilities and shortening their life; Blockage of water pipelines, resulting in material exchange or poor transportation; 4. Damage to marine instruments and torpedoes, resulting in distortion, malfunction, and failure

Method used

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  • Preparation of a thiosulfinate compound and its application in antifouling coatings

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Embodiment 1

[0016] Embodiment 1: a kind of preparation method of thiosulfinate compound: in the four-necked reaction flask of equipment stirrer, addition funnel, reflux condensing device, thermometer, add 250mL water, 120g sodium hydroxide, stir, Dissolve, cool to 50°C, then add 64g sulfur powder, 1.5g PEG-600, keep stirring at 50°C for 2.5h, then slowly add 600g (CH 3 CH 2 CH 2 CH 2 CH 2 CH 2 ) 3 Toluene (500mL) solution of CCl, after adding 1h, keep the temperature at 50±5°C for 3h, separate the organic layer, wash with saturated brine three times, then dry with anhydrous calcium chloride, then distill toluene under reduced pressure, Obtain disulfide crude product, the structure of above-mentioned disulfide is (CH 3 CH 2 CH 2 CH 2 CH 2 CH 2 ) 3 C-S-S-C(CH 2 CH 2 CH 2 CH 2 CH 2 CH 3 ) 3 ; Then in an ice-water bath, in the four-necked reaction flask equipped with stirrer, addition funnel, reflux condensing device, thermometer, add 60g (CH 3 CH 2 CH 2 CH 2 CH 2 CH ...

Embodiment 2

[0017] Embodiment 2: a kind of preparation method of thiosulfinate compound: in the four-necked reaction flask of equipment stirrer, addition funnel, reflux condensing device, thermometer, add 250mL water, 120g sodium hydroxide, stir, Dissolve, cool to 50°C, then add 64g sulfur powder, 1.5g PEG-600, keep stirring at 50°C for 2.5h, then slowly add 560g (CH 3 CH 2 CH 2 CH 2 ) 3 Toluene (500mL) solution of CCl, after adding 1h, keep the temperature at 50±5°C for 3h, separate the organic layer, wash with saturated brine three times, then dry with anhydrous calcium chloride, then distill toluene under reduced pressure, Obtain di-tertiary hydrocarbyl disulfide compound; Then in ice-water bath, in the four-necked reaction flask of equipment stirrer, addition funnel, reflux condensing device, thermometer, add the dichloromethane (400mL) of 60g di-tertiary hydrocarbyl disulfide compound Solution, then slowly add 24g35% (W / V) peroxyacetic acid dropwise, 30min dripping, then continue...

Embodiment 3

[0018] Embodiment 3: a kind of preparation method of thiosulfinate compound: with (CH 3 CH 2 CH 2 CH 2 ) 3 CBr replaces (CH in embodiment 2 3 CH 2 CH 2 CH 2 ) 3 CCl, other conditions remain unchanged.

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PUM

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Abstract

The invention discloses xanthate and a preparation method and application thereof. The xanthate disclosed by the invention is a spherical dipolar molecule and has the beneficial effect of good antifouling property. The preparation steps are simple, a utilized catalyst has high activity and selectivity, and a xanthate yield is greatly improved; the xanthate is utilized as an antifouling paint additive, xanthate in a prepared paint coating layer has surface mobility, the coating layer can form a layer of hydrophobic layer similar to the whale body surface, a coating layer surface physicochemicalproperty is changed, a coating layer antifouling property is enhanced, an obvious eco-friendly property is achieved, and defects of an existing marine antifouling paint technology are made up.

Description

technical field [0001] The invention relates to a thiosulfinic acid ester compound, in particular to a spherical dipolar thiosulfinic acid ester compound, a preparation method thereof and an application in preparing marine antifouling coatings. Background technique [0002] Marine organisms, such as barnacles, algae, oysters, mussels, limeworms, enteromorpha, sea squirts, and sea anemones, will adhere and deposit large areas without selection on the surfaces of hulls, marine structures, and breeding nets. As a result, the following hazards are caused: 1. Increase the friction of the bottom of the ship, causing increased navigational resistance, fuel consumption and carbon dioxide and other pollutant emissions; 2. Accelerating the corrosion of sea-related facilities and shortening their life; Blockage of water pipelines, resulting in material exchange or poor transportation; 4. Damage to marine instruments and torpedoes, resulting in distortion, malfunction, and failure. At ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C327/36C09D4/00C09D5/16C09D7/61C09D7/63
CPCC07C327/36C09D4/00C09D5/1625C09D5/1687
Inventor 徐焕志许康王冠良沈明
Owner ZHEJIANG OCEAN UNIV
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