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Cardanol and saturated cardanol based surfactant, preparation method therefor and application of cardanol and saturated cardanol based surfactant

A surfactant, cardanol-based technology, applied in the field of cardanol and saturated cardanol-based surfactants and their preparation, can solve the problems of high temperature resistance, salt resistance, etc., and achieve good emulsification performance and biodegradability , the effect of strong surface tension

Inactive Publication Date: 2020-11-24
HEILONGJIANG SHINEWELL CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, biomass cardanol is used as raw material to form cardanol and saturated cardanol-based surfactants, which do not have the stability of high temperature resistance and salt resistance

Method used

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  • Cardanol and saturated cardanol based surfactant, preparation method therefor and application of cardanol and saturated cardanol based surfactant
  • Cardanol and saturated cardanol based surfactant, preparation method therefor and application of cardanol and saturated cardanol based surfactant
  • Cardanol and saturated cardanol based surfactant, preparation method therefor and application of cardanol and saturated cardanol based surfactant

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] A kind of preparation method of cardanol and saturated cardanol-based surfactant, is characterized in that, comprises the following steps:

[0034] S1 alkalized cardanol and reacted with diamine to obtain intermediate 1;

[0035] S2 puts cardanol into the reactor, adds a sulfonating agent for sulfonation to obtain cardanol sulfonic acid;

[0036] S3 reacts cardanol sulfonic acid with epichlorohydrin under alkaline conditions to obtain intermediate 2;

[0037] S4 Mix and heat intermediate 1 and intermediate 2, add sulfonic acid to the product after reaction, perform sulfonation and add lye to neutrality;

[0038] S5 Separating and purifying the obtained product to obtain the cardanol surfactant containing trisiloxane and amino group.

[0039] In the present invention, the concentration range of the lye is 6wt% to a saturated solution; the lye is selected from sodium hydroxide, potassium hydroxide, sodium carbonate, sodium bicarbonate, potassium carbonate, potassium car...

Embodiment 1

[0045] Cardanol, epichlorohydrin, and diamine aqueous solution are the main raw materials, and the product is obtained through a chemical reaction of substitution and ring-opening quaternization, and 0.05mol cardanol, 33% diamine aqueous solution, and 10ml of absolute ethanol are added to the conical flask As a solvent, at 50 degrees Celsius, slowly add 6 g of epichlorohydrin (0.065 mol) dropwise under the condition of magnetic stirring, pass in nitrogen gas and stir evenly, and keep warm for 6 hours. The sulfonating agent is a chlorosulfonic acid solution (chlorosulfonic acid 0.58mol). After the sulfonating agent is added, the reaction is carried out at room temperature for 2 to 8 hours; and an organic solvent, the obtained solid is dissolved in absolute ethanol, and desalted to obtain the surfactant.

[0046] The solvent, unreacted diamine and epichlorohydrin were evaporated under reduced pressure, washed with acetone and dried in vacuo for purification.

Embodiment 2

[0048] Ultra-low interfacial tension experiment of one-component system

[0049] The cardanol and saturated cardanol-based surfactants provided by the present invention have excellent ability and effectiveness of reducing interfacial tension, especially still have good interfacial activity at a very low concentration of use. The cardanol and saturated cardanol provided in Example 1 and Saturated cardanol-based surfactant in the one-component system of 50-500ppm concentration (i.e. the aqueous solution of cardanol and saturated cardanol-based surfactant provided in Example 1) and Daqing No. 1 Plant oil-water interfacial tension test results are as follows figure 1 shown. It can be seen that within the concentration range of 50-500ppm, the interfacial tension of the system reaches ultra-low, and the interface performance is excellent, which shows that the cardanol and saturated cardanol-based surfactants provided in Example 1 have good performance.

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Abstract

The invention discloses a cardanol and saturated cardanol based surfactant, a preparation method therefor and application of the cardanol and saturated cardanol based surfactant. The method comprisesthe following steps: S1. alkalizing cardanol, and then, subjecting the alkalized cardanol to a reaction with diamine, so as to obtain an intermediate 1; S2. placing cardanol in a reactor, and adding asulfonation reagent for sulfonation, so as to obtain cardanol sulfonic acid; S3. subjecting the cardanol sulfonic acid to a reaction with epoxy chloropropane under alkaline conditions, so as to obtain an intermediate 2; S4. subjecting the intermediate 1 and the intermediate 2 to mixing and heating, adding sulfonic acid into the reacted product for sulfonation, and adding alkali liquor until neutral; and S5. subjecting the obtained product to separation and purification, thereby obtaining a cardanol surfactant containing trisiloxane and amino. Compared with the existing cardanol surfactants, the cardanol surfactant has the advantages that the capacity for lowering surface tension is strengthened obviously and is only 15mN / m to 28mN / m, and thus, the cardanol surfactant can be extensively applied to the industrial fields of emulsifiers, humectants, solubilizers, detergents and the like.

Description

technical field [0001] The invention relates to the technical field of surfactants, in particular to a cardanol and saturated cardanol-based surfactant and a preparation method and application thereof. Background technique [0002] Cardanol, as a cheap biomass resource, is derived from the cashew nut shell fluid in tropical cashew tree nuts. It contains a variety of biophenols, mainly including cardol, cardanol, anacardic acid and 2-methyl Cardol. Cardanol is characterized by low toxicity and easy biodegradability. Cardanol is a biomass resource with a wide range of sources and low cost, and because it is extracted from plants, it can meet the strategic requirements of sustainable development both in terms of environmental protection and economic benefits. Therefore, surfactants produced with cardanol as raw materials have received extensive attention in recent years. [0003] Cardanol replaces or partially replaces phenol for the manufacture of epoxy curing agents, liqui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/54B01F17/12C09K8/584C07F7/10C09K23/54C09K23/12
CPCC09K8/584C07F7/0889C09K23/00
Inventor 闫磊丁泽浩丁莉
Owner HEILONGJIANG SHINEWELL CHEM CO LTD
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