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Quaternary ammonium salt type cationic antistatic agent as well as preparation method and application thereof

A reaction and initiator technology, which is applied in the field of preparation of quaternary ammonium cationic antistatic agents, can solve the problems of limited application range, wettability, emulsification performance and high temperature resistance, etc. High yield and reduced effective chain length

Active Publication Date: 2022-04-29
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another shortcoming of above-mentioned two kinds of methods is that its wetting performance, emulsifying performance and high temperature resistance performance are not good when the obtained straight-chain alkyl trimethyl ammonium chloride is used as antistatic agent, cause its scope of use to be limited to a certain extent. limit

Method used

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  • Quaternary ammonium salt type cationic antistatic agent as well as preparation method and application thereof
  • Quaternary ammonium salt type cationic antistatic agent as well as preparation method and application thereof
  • Quaternary ammonium salt type cationic antistatic agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A kind of hyperbranched alkyltrimethyl ammonium chloride, step is as follows:

[0061] Add 100g of isododecane into a 500mL three-necked flask, raise the temperature to 50°C under mechanical stirring, and slowly feed 82g of chlorine gas (the molar ratio of isododecane to chlorine is 0.5:1), and control the feeding speed to 2.74g / min, about 30min to complete, during which 0.48g free radical initiator azobisisobutyronitrile was added three times (the molar ratio of initiator to isododecane was 1:200). During the reaction, the waste gas produced was sucked into the aqueous solution of 25wt% sodium bicarbonate with a vacuum pump. After the introduction of chlorine gas, the reaction was continued at 50° C. for 3.5 hours. After the reaction was completed, the temperature was increased to 80°C, and nitrogen gas was bubbled below the liquid surface for purging until the reaction liquid was neutral. Through gas chromatography analysis, the isomeric dodecane chloride conversion...

Embodiment 2

[0065] A kind of hyperbranched alkyltrimethyl ammonium chloride, step is as follows:

[0066] Add 100g of isomerized hexadecane into a 500mL three-necked flask, raise the temperature to 65°C under mechanical stirring, and slowly introduce 62g of chlorine gas (the molar ratio of isomerized dodecane to chlorine gas is 0.5:1), and control the feed rate to 2.07g / min, about 30min to complete, during which 0.49g free radical initiator azobisisobutyronitrile was added three times (the molar ratio of initiator to isododecane was 1:150). During the reaction, the waste gas produced was sucked into the aqueous solution of 25 wt% sodium bicarbonate by vacuum pump, and after the introduction of chlorine gas, the reaction was continued at 65° C. for 4.5 h. After the reaction was completed, the temperature was increased to 80°C, and nitrogen gas was bubbled below the liquid surface for purging until the reaction liquid was neutral. Through gas chromatography analysis, the conversion rate o...

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Abstract

The invention relates to hyper-branched alkyl trimethyl ammonium chloride as a quaternary ammonium salt type cationic antistatic agent as well as a preparation method and application thereof. The preparation method comprises the following steps: (1) reacting branched alkane with a chlorination reagent to prepare branched alkyl chloride; and (2) carrying out quaternization reaction on the branched alkyl chloride prepared in the step (1) and trimethylamine in the presence of a catalyst, an auxiliary agent and a solvent to prepare highly branched alkyl trimethyl ammonium chloride. The process is simple, the raw material branched paraffin is rich in source, easy to obtain and low in price, the reaction condition is mild, the product yield is high, and when the prepared cationic quaternary ammonium salt serves as the antistatic agent, the prepared cationic quaternary ammonium salt has better antistatic performance, wetting performance, emulsifying performance and high-temperature resistance compared with straight-chain alkyl quaternary ammonium salt, and the application range is wide.

Description

technical field [0001] The invention relates to the field of chemical synthesis, in particular to a preparation method and application of a quaternary ammonium salt type cationic antistatic agent. Background technique [0002] Cationic surfactants are positively charged in aqueous solution, forming positively charged surface-active ions. It not only has the basic properties of general surfactants, but also exhibits some special properties, and is used as antistatic agent, disinfectant, corrosion inhibitor, mineral flotation agent, phase transfer catalyst, fabric finishing agent, etc. The quaternary ammonium salt has good static elimination effect and has a great adsorption force. In the case of extremely dilute concentration, it can be fully absorbed by plastics and fibers. It can be used as an adhesive for polyester, polyvinyl chloride, polyvinyl alcohol films and plastic products. antistatic agent. [0003] At present, most of the cationic surfactants with commercial val...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C211/63C07C209/12C09K23/18C09K3/16
CPCC07C209/12C07C17/10C09K3/16C07C211/63C07C19/01Y02P20/584
Inventor 任亚鹏苏黎明黄少峰邹成成许振成陈来中黎源
Owner WANHUA CHEM GRP CO LTD