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Anion surface active agent, detergent and detergent compound

A surfactant and anionic technology, applied in the field of anionic surfactants, detergents and detergent compositions, can solve the problem of poor emulsification, detergency, emulsion stability, foaming, etc., and large skin irritation to human body problem, to achieve excellent detergency, low skin irritation effect

Inactive Publication Date: 2019-01-04
SOUTH CHINA NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, alkaline substances such as KOH, NaOH, and sodium methoxide are often used as catalysts in the industry to prepare fatty alcohol polyoxyethylene ethers. There are many unreacted free alcohols in oxyethylene ether, and the molecular weight distribution of the product is wide. Anionic derivatives obtained by anionizing the fatty alcohol polyoxyethylene ether also have emulsifying properties, detergency, emulsion stability, and foaming properties. Poor disadvantages, and more irritating to human skin

Method used

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  • Anion surface active agent, detergent and detergent compound
  • Anion surface active agent, detergent and detergent compound
  • Anion surface active agent, detergent and detergent compound

Examples

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Effect test

Embodiment 1

[0028] Sodium Lauryl Polytrioxyethylene Ether Sulfate (C 12 h 25 O(CH 2 CH 2 O) 3 SO 3 Na, referred to as AE 3 S) synthesis:

[0029] 1) Fill the kettle with nitrogen to discharge the air first, then add 1 mol of dodecyl alcohol polytrioxyethylene ether (Weibull distribution coefficient is 0.7), control the temperature of the reaction solution at 28°C, add 1.05 mol of chlorosulfonic acid dropwise while stirring, for 15 minutes After the dropwise addition of chlorosulfonic acid is completed, the constant temperature reaction is carried out for 1 hour, and the tail gas produced by the reaction is absorbed with NaOH solution;

[0030] 2) Measuring the acid value of the reaction solution, adding a 45% mass fraction of sodium hydroxide solution for neutralization, controlling the neutralization temperature to 40°C, and neutralizing to pH=7;

[0031] 3) Add ethanol at 65°C, filter, distill off the ethanol under reduced pressure, and cool to obtain sodium lauryl alcohol polytr...

Embodiment 2

[0048] Sodium tridecyl alcohol polytrioxyethylene ether acetate (C 13 h 27 O(CH 2 CH 2 O) 3 CH 2 COONa, referred to as AE 3 C) Synthesis of:

[0049] 1) Add 0.4mol isomeric tridecyl alcohol polytrioxyethylene ether (Weibull distribution coefficient is 0.7) to the flask, then add 0.22mol chloroacetic acid, stir and mix well, gradually heat up to 70°C, then add 0.44mol NaOH , constant temperature reaction for 0.5 hours;

[0050] 2) Add 0.22mol of chloroacetic acid and 0.44mol of NaOH, and react at constant temperature for 5 hours;

[0051] 3) After the reaction, add ethanol at 65°C, remove the generated sodium chloride and excess unreacted sodium chloroacetate by suction filtration, repeat the operation twice, remove the ethanol by distillation under reduced pressure, and cool to obtain isotridecyl alcohol polytrioxyethylene Sodium ether acetate (white viscous paste).

[0052] After testing, the Weibull distribution coefficient of the isotridecyl alcohol polytrioxyethyl...

Embodiment 3

[0059] Sodium Decyl Alcohol Polyoxyethylene Ether Sulfosuccinate (C 10 h 21 O(CH 2 CH 2 O) 2 COCH 2 CH(SO 3 Na)COONa, referred to as AE 2 SS) synthesis:

[0060] 1) Add 1 mol of decanol polyoxyethylene ether (Weibull distribution coefficient is 0.6) and 1.5 mol of maleic anhydride into the reactor, fill it with nitrogen, heat to a constant temperature of 55°C, stir slowly until the maleic anhydride melts, and then raise the temperature to 110 ℃ constant temperature reaction, take a sample every 0.5 hours to measure the acid value, and calculate the esterification rate, until the change of the acid value is less than 1mgKOH / g, stop the reaction;

[0061] 2) After the esterification reaction finishes, add dropwise Na with a mass fraction of 50% while stirring 2 SO 3 The solution was kept at a constant temperature of 110°C. Samples were regularly taken every 0.5 hours to measure the iodine value, and the sulfonation rate was calculated until the change in the sulfonation...

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Abstract

The invention discloses an anion surface active agent, a detergent and a detergent compound. The anion surface active agent is obtained by fatty alcohol-polyoxyethylene ether with the Weibull distribution coefficient of 0.2-1.0 on which anionic reaction is conducted. The detergent at least comprises the surface active agent. The detergent compound at least comprises the detergent. The narrowly distributed fatty alcohol-polyoxyethylene ether is taken as a raw material, anionic reaction is conducted on the fatty alcohol-polyoxyethylene ether to obtain the anion surface active agent, the anion surface active agent has excellent sewage removing, emulsifying and permeability performance, the irritation on human skin is extremely low, and the anion surface active agent is particularly suitable for daily detergents of shampoo, shower gel, facial cleanser, hand washing and tableware detergent and the like.

Description

technical field [0001] The present invention relates to an anionic surfactant, detergent and detergent composition. Background technique [0002] Anionic derivatives of fatty alcohol polyoxyethylene ethers are an important class of anionic surfactants, widely used in washing, textile printing and dyeing, pesticides, industrial cleaning and other industries. Fatty alcohol polyoxyethylene ether can usually be prepared by addition reaction of fatty alcohol containing active hydrogen and alkylene oxide (such as ethylene oxide, propylene oxide) in the presence of a catalyst, and the product is a mixture of different degrees of polymerization. At present, alkaline substances such as KOH, NaOH, and sodium methoxide are often used as catalysts in the industry to prepare fatty alcohol polyoxyethylene ethers. There are many unreacted free alcohols in oxyethylene ether, and the molecular weight distribution of the product is wide. Anionic derivatives obtained by anionizing the fatty a...

Claims

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Application Information

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IPC IPC(8): B01F17/42C11D1/29C11D1/06C11D1/28C11D1/34C11D1/83C11D3/33A61K8/46A61K8/39A61Q19/10A61Q5/02C09K23/42
CPCA61Q5/02A61Q19/10A61K8/39A61K8/463C11D1/06C11D1/28C11D1/29C11D1/345C11D1/83C11D3/33C11D1/72C11D1/14C09K23/14C09K23/00
Inventor 朱宏汪培琳
Owner SOUTH CHINA NORMAL UNIVERSITY
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