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Hydrogenated castor oil sulfosuccinate fatting agent and preparation method thereof

A technology of hydrogenated castor oil and succinic acid, applied in the field of leather making, can solve the problems of poor softness and plumpness, insignificant thickening, and not particularly fine grain surface of raw leather.

Active Publication Date: 2014-01-29
许昌鑫瑞德化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing light-resistant fatliquoring agent made of hydrogenated castor oil has the defects that the grain surface of the crust leather is not particularly delicate after fatliquoring, and the thickening is not obvious, and the softness and plumpness are poor, and further improvement is needed.

Method used

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  • Hydrogenated castor oil sulfosuccinate fatting agent and preparation method thereof
  • Hydrogenated castor oil sulfosuccinate fatting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1) Take 20 parts of hydrogenated castor oil, 6.493 parts of maleic anhydride and 6.890 parts of sodium bisulfite in parts by mass;

[0029] 2) Add hydrogenated castor oil into a three-necked flask, adjust the oil bath temperature control device to keep the hydrogenated castor oil at 115°C for 1 hour; then replace the oil bath temperature control device with a water bath, adjust the temperature of the water bath to keep the hydrogenated castor oil at 90°C It is in a molten state at ℃ and maleic anhydride is added. After 3 hours of reaction, the acid value of the obtained system A is constant, and then the temperature is lowered to 68 ℃, and hydrogen sulfite with a mass concentration of 20% made of sodium bisulfite is added. Sodium aqueous solution, and adjust the pH value of the obtained system B to 8.0 with ammonia water, react for 3 hours, then lower the temperature to 45°C, add deionized water to make the solid content 40%, and stir for 40 minutes to obtain succinate s...

Embodiment 2

[0031] 1) Take 20 parts of hydrogenated castor oil, 7.4197 parts of maleic anhydride and 7.8744 parts of sodium bisulfite in parts by mass;

[0032] 2) Add hydrogenated castor oil into the three-necked flask, adjust the oil bath temperature control device to keep the hydrogenated castor oil at 115°C for 1 hour; then replace the oil bath temperature control device with a water bath, adjust the temperature of the water bath to make the hydrogenated castor oil It is in a molten state at 85°C and maleic anhydride is added. When reacting for 2 hours, the acid value of the obtained system A is constant. Then cool down to 68°C and add sulfurous acid with a mass concentration of 20% made of sodium bisulfite. Sodium hydrogen aqueous solution, and adjust the pH value of the obtained system B to 8.0 with ammonia water, react for 3 hours, then lower the temperature to 45°C, add deionized water to make the solid content 40%, and stir for 40 minutes to obtain succinate sulfonated hydrogenate...

Embodiment 3

[0034] 1) Take 20 parts of hydrogenated castor oil, 6.493 parts of maleic anhydride and 7.234 parts of sodium bisulfite in parts by mass;

[0035] 2) Add hydrogenated castor oil into a three-necked flask, adjust the oil bath temperature control device to keep the hydrogenated castor oil at 115°C for 1 hour; then replace the oil bath temperature control device with a water bath, adjust the temperature of the water bath to keep the hydrogenated castor oil at 95°C It is in a molten state at ℃ and maleic anhydride is added. After 2 hours of reaction, the acid value of the obtained system A is constant, and then the temperature is lowered to 65 ℃, and hydrogen sulfite with a mass concentration of 20% made of sodium bisulfite is added. Sodium aqueous solution, and adjust the pH value of the obtained system B to 7.5 with ammonia water, react for 3 hours, then lower the temperature to 45°C, add deionized water to make the solid content 40%, and stir for 40 minutes to obtain succinate s...

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Abstract

The invention discloses a hydrogenated castor oil sulfosuccinate fatting agent and a preparation method thereof. Through maleic anhydride mono-esterification and then sodium hydrogen sulfite sulfonation, the fatting agent is prepared from hydrogenated castor oil containing hydroxyl as an initial raw material. The fatting agent is milky paste, is not layered at a room temperature in 3 months and can be emulsified in water. Based on a dilution ratio of 1: 9, the fatting agent is not layered in 24h and does not produce floating oil and based on a dilution ratio of 1: 4, the fatting agent is not layered in 12h and does not produce floating oil. A result of emulsion detection adopting 100g / L of tannin extract, 100g / L of a chromium salt, 1mol / L of hydrochloric acid and 1mol / L of ammonia water shows that the fatting agent has good emulsion stability, cannot be layered and does not produce floating oil. The fatting agent has good stability and is environmentally friendly. The crust leather granule utilizing the fatting agent has fine surface, increased thickness, good flexibility and fullness.

Description

technical field [0001] The invention belongs to the field of tanning, and in particular relates to a succinate sulfonated hydrogenated castor oil fatliquoring agent and a preparation method thereof. Background technique [0002] Fatliquor plays a pivotal role in leather chemical products and is one of the most used leather chemicals. The fatliquoring process determines the softness, fullness and elasticity of the finished leather, and affects the physical and mechanical properties and hand characteristics of the finished leather. , Hygienic properties such as water absorption, water vapor permeability and air permeability. In recent years, fatliquoring agents have developed towards functionalization to meet people's increasingly higher requirements for leather products. Through fatliquoring, leather can be endowed with special properties such as waterproof, oil-proof, stain-resistant, flame-retardant, anti-fogging, and light-resistant. The use performance has become a resea...

Claims

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Application Information

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IPC IPC(8): C14C9/02C07C303/32C07C309/62
Inventor 吕斌段徐宾高党鸽马建中
Owner 许昌鑫瑞德化工科技有限公司
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