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Copolymer and preparation method thereof, antistatic agent comprising the copolymer and application thereof

A technology of copolymers and derivatives, used in fuel additives, liquid carbon-containing fuels, fuels, etc., can solve the problems of substandard water separation index, rapid electrical conductivity decay, seldom production and use, etc., to eliminate low temperature fluidity. Problems, slow conductivity decay, good water separation performance

Active Publication Date: 2021-08-10
SHENZHEN GCD PETROLEUM ADDITIVE CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aviation kerosene antistatic agents are divided into two types: gray type and ashless type. There are gray type antistatic agents (such as ASA-3 produced by Shell Company, domestic T1501, etc.) because of the fast decay of conductivity, after adding antistatic agents The water separation index is significantly reduced, and problems such as chromium pollution after combustion are seldom produced and used.
Ashless antistatic agents (such as ST450 produced by DuPont, domestic T1502, etc.), although they have good electrical conductivity and excellent water separation characteristics, there are also some problems in the use process: (1) Aviation kerosene with different processes There are large differences in the susceptibility of oil products; (2) the conductivity decays rapidly; (3) the water separation index often fails to meet the standard after adding antistatic agents to aviation kerosene; (4) the main components of traditional antistatic agents are polysulfone, polyamine or Composition, the production process of polysulfone is complicated, and it contains sulfur elements, which is easy to cause environmental pollution after burning

Method used

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  • Copolymer and preparation method thereof, antistatic agent comprising the copolymer and application thereof
  • Copolymer and preparation method thereof, antistatic agent comprising the copolymer and application thereof
  • Copolymer and preparation method thereof, antistatic agent comprising the copolymer and application thereof

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preparation example Construction

[0038] Such as figure 1 Shown, the preparation method of the copolymer of one embodiment, comprises the following steps:

[0039] Step S110: Copolymerize the raw materials in the first solvent to obtain a copolymer precursor solution.

[0040] The raw materials in the above step S110 include maleic acid derivatives, carboxylic acid enester compounds, acrylamide compounds, ethylene and α-olefins, the above-mentioned maleic acid derivatives, carboxylic acid enester compounds, acrylamide compounds The molar ratio of ethylene and α-olefin is 1: (0~5): (0~5): (15~30): (5~15); above-mentioned maleic acid derivative is by maleic anhydride and amines The compound is reacted, the amine compound is selected from one of dibasic amines and alcohol amines, and the number of carbon atoms of the amine compound is 3 to 18; the above-mentioned carboxylic acid enester compound is selected from vinyl formate, propylene formate At least one of ester, vinyl acetate, propylene acetate, 3-butenyl ...

Embodiment 1

[0068] The preparation process of the antistatic agent of the present embodiment is as follows:

[0069] 1. Preparation of copolymer

[0070] (1) Add 0.1mol maleic anhydride and xylene (equal to the total mass of the reaction raw materials in this step) into the reactor, heat to dissolve, add a mol of amine compound A (abbreviated as A in Table 1), continue Heating to 90°C, acylation reaction for 4 hours, and desolvation to obtain maleic acid derivatives.

[0071] (2) Add the above-mentioned maleic acid derivatives, ethylene and 1-nonene at a molar ratio of 1:15:5 in xylene (equal to the total mass of the reaction raw materials in this step), and heat to At 45°C, add 0.2% azobisisobutyronitrile based on the total mass of the reaction raw materials, continue heating to 90°C, and react for 5 hours to obtain a copolymer precursor solution.

[0072] (3) Add an aqueous sodium hydroxide solution with a mass fraction of 15%, heat to 70° C. for hydrolysis for 30 minutes, then neutra...

Embodiment 2

[0084] 1. Preparation of copolymer

[0085] (1) The maleic acid derivative corresponding to antistatic agent #3 in 0.1mol embodiment 1, b2 mol carboxylate enyl compound B (abbreviated as B in Table 2), c2 mol acrylamide compound C (table 2 (referred to as C), d2 mol ethylene, e2 mol α-olefin (referred to as E in Table 2) were dissolved in trimethylbenzene (equal to the total mass of the reaction raw materials in this step), heated to 45°C under nitrogen protection, and added 0.3% dibenzoyl peroxide of the total mass of the reaction raw materials, continue to heat up to 100 ° C, and react for 3 hours to obtain a copolymer precursor solution;

[0086] (2) Add an aqueous sodium hydroxide solution with a mass fraction of 20%, heat up to 60° C. for hydrolysis for 50 minutes, then neutralize, wash with water, dry, and remove solvent to obtain a copolymer.

[0087] 2. Preparation of antistatic agent

[0088] Take 25 parts of the copolymer prepared above, 15 parts of stearamidoethyl...

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Abstract

The invention relates to a copolymer and its preparation method, an antistatic agent containing the copolymer and its application. The raw materials for preparing the copolymer include: maleic acid derivatives, carboxylic acid enyl ester compounds, acrylamide compounds, ethylene and α-olefin. The molar ratio of the above-mentioned raw materials is 1: (0-5): (0-5): (15-30): (5-15); wherein, the maleic acid derivative is obtained by reacting maleic anhydride and amine compounds . The above-mentioned copolymer has the advantages of slow decay of electrical conductivity, good antistatic effect, strong applicability, no antistatic stabilizer, good oil solubility, good water separation performance, and the like. An antistatic agent comprising the above-mentioned copolymer, in parts by mass, comprising: 20-40 parts of copolymer, 10-20 parts of fatty acid amide, 5-15 parts of polyfatty acid ester, imide compound 0-10 parts and 40-70 parts of diluent. The antistatic agent has slow conductivity decay, good water separation properties, good oil applicability and little environmental pollution.

Description

technical field [0001] The invention relates to the field of oil additives, in particular to a copolymer and its preparation method, an antistatic agent, its preparation method and its application. Background technique [0002] The main components of aviation kerosene are hydrocarbon compounds, which have strong insulation. Due to the special purpose of aviation kerosene, the requirements for sulfur and nitrogen content are lower, and its conductivity is worse than that of ordinary fuel. Therefore, during the production, storage, and transportation of aviation kerosene, especially when refueling in the air, the charges are easily separated due to the friction between the media. If the charges accumulate to a certain extent, serious safety accidents such as fires and explosions may occur. Adding an antistatic agent to aviation kerosene can quickly dissipate charges, prevent aggregation, and generate high voltage, which is a practical and feasible method to ensure the safety o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F210/02C08F210/14C08F222/38C08F220/56C08F218/06C08F218/12C08F220/54C10L1/10C10L1/234C10L10/00
CPCC08F210/02C10L1/10C10L1/234C10L10/00C08F210/14C08F222/38C08F220/56C08F218/06C08F218/12C08F218/08
Inventor 陈傲严斌熊靓胡涛英
Owner SHENZHEN GCD PETROLEUM ADDITIVE CO
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