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Emulsifier as well as preparation method and application thereof in latex foaming product

An emulsifier and sodium hydroxide technology, which is applied in the field of latex foaming, can solve the problems of waste of raw materials in factories, voids in products, and large fluctuations in product quality.

Active Publication Date: 2021-06-04
QINGDAO RAYNOL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of the traditional foaming system is very primitive. It is generally produced by the reaction of vegetable oleic acid or ricinoleic acid and potassium hydroxide. The purity, dosage and reaction temperature of the raw materials are not standardized, resulting in very large index errors and fluctuations of the obtained products. , bringing a lot of uncertainties to the subsequent latex foaming
[0004] In addition, when applying potassium oleate and potassium ricinoleate for foaming, you cannot use only one of them, and you need to use the two together in a certain proportion, otherwise the foaming effect will be poor, because potassium oleate and potassium ricinoleate The product quality fluctuates greatly, and it is difficult to determine the standard dosage when adjusting the dosage of the two, which makes the whole adjustment process very cumbersome, and multiple dosage adjustments will bring great waste of raw materials to the factory
[0005] In addition, when using potassium oleate and potassium ricinoleate system for foaming, it is very easy to have coarse cells and foam perforation, resulting in cavities in latex foamed products, and slag in products, and the phenomenon of potassium oleate Potassium ricinoleate and potassium ricinoleate system have poor foam stability, and the foam shrinkage rate of the product is high, resulting in a decline in the quality of latex foam products

Method used

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  • Emulsifier as well as preparation method and application thereof in latex foaming product
  • Emulsifier as well as preparation method and application thereof in latex foaming product
  • Emulsifier as well as preparation method and application thereof in latex foaming product

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preparation example Construction

[0034] The present invention also provides a preparation method for the emulsifier described in the above scheme, comprising the following steps:

[0035] Water and sodium hydroxide solution are mixed to obtain sodium hydroxide solution;

[0036] The sodium hydroxide solution, tall oil acid, ricinoleic acid and vegetable oleic acid are mixed and reacted to obtain a reaction solution;

[0037] Mix the reaction solution and surfactant T-220 to obtain an emulsifier.

[0038] The present invention mixes water and sodium hydroxide to obtain a sodium hydroxide solution. In a specific embodiment of the present invention, it is preferred to add water to the reaction kettle first, then start stirring, slowly add sodium hydroxide, and stir until the sodium hydroxide is completely dissolve.

[0039] After the sodium hydroxide solution is obtained, the present invention mixes the sodium hydroxide solution, tall oleic acid, ricinoleic acid and vegetable oleic acid for reaction to obtain ...

Embodiment 1

[0051] An emulsifier, in terms of mass fraction, is composed of: tall oil 8%, ricinoleic acid 8%, palmitoleic acid 5%, sodium hydroxide 2.5%, surfactant T-220 (active ingredient is 25 %, the solvent is water, purchased from Qingdao Rui Nuo Chemical Co., Ltd., model is Raynol T-220) 5%, the distilled water of remainder; Wherein, the acid value of tall oleic acid is 196mgKOH / g, the acid value of ricinoleic acid It is 181mgKOH / g, and the acid value of palmitoleic acid is 280mgKOH / g.

[0052] The preparation method of the emulsifier is as follows: mix tall oil acid, ricinoleic acid and palmitoleic acid to obtain an oleic acid mixture; pour distilled water into the reaction kettle, start stirring, and slowly add weighed sodium hydroxide to make it Completely dissolve, turn on the steam and start to heat up, slowly put the oleic acid mixture into the reactor, and react. When the temperature in the reactor reaches 80°C, keep the reaction for 1 hour, then add surfactant T-220, and the...

Embodiment 2

[0055] An emulsifier, in terms of mass fraction, is composed of: tall oil 10%, ricinoleic acid 10%, palmitoleic acid 3%, sodium hydroxide 3%, surfactant T-220 (active ingredient is 25 %, the solvent is water, purchased from Qingdao Rui Nuo Chemical Co., Ltd., model is Raynol T-220) 4%, the distilled water of remainder; Wherein, the acid value of tall oleic acid is 196mgKOH / g, the acid value of ricinoleic acid It is 181mgKOH / g, and the acid value of palmitoleic acid is 280mgKOH / g.

[0056] The preparation method of the emulsifier is as follows: mix tall oil acid, ricinoleic acid and palmitoleic acid to obtain an oleic acid mixture; pour distilled water into the reaction kettle, start stirring, and slowly add weighed sodium hydroxide to make it Completely dissolve, turn on the steam and start to heat up, slowly put the oleic acid mixture into the reactor, and react. When the temperature in the reactor reaches 80°C, keep the reaction for 1 hour, then add surfactant T-220, and the...

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Abstract

The invention relates to the technical field of latex foaming, and provides an emulsifier as well as a preparation method and application thereof in a latex foaming product. The emulsifier provided by the invention is prepared from the following raw materials: tall oil acid, ricinoleic acid, vegetable oil acid, sodium hydroxide, a surfactant T-220 and water. According to the invention, tall oil acid, ricinoleic acid, vegetable oil acid and sodium hydroxide react, and the surfactant T-220 is added to improve the performance of the emulsifier, so that the emulsifier which takes sodium oleate as a main component and has the advantages of fast foaming, fine foam and good foam stabilizing performance is finally obtained. The emulsifier provided by the invention is good in emulsification effect and has good dispersion and emulsification effects in a natural latex system, when the emulsifier provided by the invention is used for preparing a latex foaming product, the obtained product is rich and fine in foam pores, and in the presence of aluminum hydroxide, the emulsifier provided by the invention still has excellent foaming performance; the foam shrinkage rate of the obtained product is low.

Description

technical field [0001] The invention relates to the technical field of latex foaming, in particular to an emulsifier, a preparation method thereof and an application in latex foaming products. Background technique [0002] Latex sponge is a latex foam product with a large number of cells inside. It has the characteristics of high elasticity, shock absorption, compression fatigue resistance, good bearing capacity, comfort and durability. [0003] Latex sponge is prepared by foaming natural latex. At present, the traditional foaming systems used by latex product factories are potassium oleate and potassium ricinoleate systems. The production process of the traditional foaming system is very primitive. It is generally produced by the reaction of vegetable oleic acid or ricinoleic acid and potassium hydroxide. The purity, dosage and reaction temperature of raw materials are not standardized, resulting in very large index errors and fluctuations of the obtained products. , bring...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/00C08L7/00C08K5/09C08K3/22
CPCC08J9/0023C08J9/0066C08J2307/00
Inventor 王志泉王新宇
Owner QINGDAO RAYNOL CHEM