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Modified titanium dioxide/sulfonated hydrogenated castor oil succinate composite material and preparation method thereof

A technology of titanium dioxide and composite materials, applied in the field of tanning, to achieve good lipophilicity and improved UV absorption

Inactive Publication Date: 2015-04-01
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no report about its application in leather fatliquor

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0021] The invention relates to a preparation method of a modified titanium dioxide / succinate sulfonated hydrogenated castor composite material, using succinate sulfonated hydrogenated castor oil as a matrix, and TiO modified by different modifiers 2 Introduced into succinate sulfonated hydrogenated castor oil to obtain modified TiO 2 / Succinate sulfonated hydrogenated castor composite material, specifically realized by the following steps:

[0022] Step 1: Mix 90g of absolute ethanol, 10g of water and 1g of nano-TiO 2 Mix in a 200ml beaker for ultrasonication, put the ultrasonicated mixture into a three-necked flask, then raise the temperature, add a modifier, adjust the pH, react for several hours, wash and dry the modified particles with absolute ethanol and pure water, and prepare Modified TiO 2 ;

[0023] Step 2: Take 25g of hydrogenated castor oil and 8.116g of maleic anhydride to react at 95°C for 3h, add 0.433-1.667g of modified TiO 2 React for 1 hour, cool down to...

Embodiment 1

[0027] Step 1: Mix 90g of absolute ethanol, 10g of water and 1g of nano-TiO 2 Mix in a 200ml beaker for ultrasonication, put the ultrasonicated mixture into a three-necked flask, then raise the temperature, add a modifier, adjust the pH, react for several hours, wash and dry the modified particles with absolute ethanol and pure water, and prepare Modified TiO 2 ;

[0028] Step 2: Take 25g of hydrogenated castor oil and 8.116g of maleic anhydride to react at 95°C for 3h, add 0.433g of modified TiO 2 React for 1 hour, cool down to 65°C and add sodium bisulfite solution (take 8.613g of sodium bisulfite and purified water to make a 40% solution), adjust the pH of the system to 8.5 with ammonia water, react for 5 hours, and adjust the solid content to 40 % reacted for 20min to obtain a composite material.

[0029] In step 1, the power of ultrasonic treatment is 800w, and the ultrasonic time is 30min.

[0030] In step 1, the modifier is silane coupling agent KH550, the temperatu...

Embodiment 2

[0032] Step 1: Mix 90g of absolute ethanol, 10g of water and 1g of nano-TiO 2 Mix in a 200ml beaker for ultrasonication, put the ultrasonicated mixture into a three-necked flask, then raise the temperature, add a modifier, adjust the pH, react, wash and dry the modified particles with absolute ethanol and pure water, and prepare a modified Sex TiO 2 ;

[0033] Step 2: Take 25g of hydrogenated castor oil and 8.116g of maleic anhydride to react at 95°C for 3h, add 1.05g of modified TiO 2 React for 1 hour, cool down to 65°C and add sodium bisulfite solution (take 8.613g of sodium bisulfite and purified water to make a 40% solution), adjust the pH of the system to 8.5 with ammonia water, react for 5 hours, and adjust the solid content to 40 % reacted for 20min to obtain a composite material.

[0034] In step 1, the power of ultrasonic treatment is 650w, and the ultrasonic time is 45min.

[0035] In step 1, the modifier is silane coupling agent KH550, the temperature of the sys...

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PUM

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Abstract

The invention relates to a preparation method for a modified titanium dioxide / sulfonated hydrogenated castor oil succinate composite material. Application of nanometer TiO2 to leather fatliquors is not reported at present. The preparation method for the composite material comprises: mixing anhydrous ethanol, water and nanometer TiO2 and performing ultrasonic processing, heating, adding a modifier, adjusting the pH for reaction, washing and drying to prepare modified TiO2; and then reacting hydrogenated castor oil with maleic anhydride, adding the modified TiO2 prepared at the early stage, cooling to 65 DEG C, adding a sodium bisulfite solution for reaction, and adjusting the solid content, so as to obtain the composite material. The prepared composite material is not layered and does not have floating oil after being stored at room temperature for 3 months, is easy for water emulsification, strong in stability and friendly to environment, and after fat liquoring is performed, the crust leather is fine in particle surface, obvious in thickness increase, good in flexibility and fullness, and also good in yellowing resistance.

Description

technical field [0001] The invention belongs to the technical field of tanning, and in particular relates to a modified titanium dioxide / succinate sulfonated hydrogenated castor composite material and a preparation method thereof. Background technique [0002] Fatliquor plays an important 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 of the finished leather, hand characteristics, water absorption, water vapor permeability and air permeability and other hygienic properties. 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 u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02
CPCC14C9/02
Inventor 马建中段徐宾高党鸽吕斌段力民蒋小妹
Owner SHAANXI UNIV OF SCI & TECH
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