Preparation method for polyether type organic silicone-modified fat-liquoring agent for leather

A fatliquoring agent, polyether-type technology, applied in the field of preparation of polyether-type silicone modified fatliquor for leather, can solve environmental pollution and other problems, and achieve environmentally friendly performance, less residue, and fine grain Effect

Inactive Publication Date: 2009-09-16
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while the tanning industry has brought considerable economic benefits to our country, it has also brought serious environmental pollution problems.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: 1) Mix 100g of rapeseed oil, 1.5g of ethylenediamine and 1.0g of aluminum oxide, heat up to 110°C, keep the temperature for 2.0 hours, then add 9.0g of acrylic acid; heat up to 130°C, Heat preservation reaction for 4.0 hours to obtain a modified product, cool the modified product to 80°C, add 90g of saturated sodium bisulfite solution and heat preservation reaction for 1.5 hours, adjust the pH value of the reactant to 7.5 with ammonia water, and then use 60°C hot water to adjust The solid content of the system is 40%, and the amphoteric fatliquoring agent is obtained.

[0011] 2) Mix 100g of amphoteric fatliquor with 7.0g of polyether-type silicone oil, heat up to 40°C, keep warm and stir for 30 minutes, and ultrasonically treat for 20 minutes to obtain a polyether-type silicone-modified fatliquor for leather.

Embodiment 2

[0012] Example 2: 1) Mix 100 g of rapeseed oil, 3.5 g of ethylenediamine and 1.3 g of aluminum oxide, heat up to 105° C., keep warm for 3.0 hours, then add 7.0 g of acrylic acid; heat up to 120° C., Heat preservation reaction for 5.0 hours to obtain a modified product, cool the modified product to 70°C, add 72g of saturated sodium bisulfite solution and heat preservation reaction for 1.5 hours, adjust the pH value of the reactant to 7.0 with ammonia water, and then use 60°C hot water to adjust The solid content of the system is 40%, and the amphoteric fatliquoring agent is obtained.

[0013] 2) Mix 100g of amphoteric fatliquor with 6.0g of polyether-type silicone oil, heat up to 40°C, keep warm and stir for 30 minutes, and ultrasonically treat for 25 minutes to obtain a polyether-type silicone-modified fatliquor for leather.

Embodiment 3

[0014] Example 3: 1) Mix 100g of rapeseed oil, 2.0g of ethylenediamine and 1.2g of aluminum oxide, heat up to 100°C, keep warm for 4.0 hours, then add 8.5g of acrylic acid; heat up to 125°C, Heat preservation reaction for 6.0 hours to obtain a modified product, cool the modified product to 75°C, add 85g of saturated sodium bisulfite solution and heat preservation reaction for 1.5 hours, adjust the pH value of the reactant to 8.0 with ammonia water, and then use 60°C hot water to adjust The solid content of the system is 40%, and the amphoteric fatliquoring agent is obtained.

[0015] 2) Mix 100g of amphoteric fatliquor with 8.0g of polyether silicone oil, heat up to 40°C, keep warm and stir for 30 minutes, and ultrasonically treat for 30 minutes to obtain a polyether silicone modified fatliquor for leather.

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PUM

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Abstract

The invention provides a preparation method for a polyether type organosilicone-modified fat-liquoring agent for leather, which is prepared by taking quadrol-modified rap oil, acrylic acid, sodium bisulfate, and polyether type organic silicone oil as raw materials through a blending method. The fat-liquoring agent is an amphoteric fat-liquoring agent, and has strong acid, alkali and salt resistance, strong emulsifying capacity, good permeability, even distribution, strong bonding force with the leather, and little residue of the fat-liquoring agent in fat-liquoring waste liquor; and crust leather after the fat liquoring has the characteristics of delicate grain surface, clear pores, plump handfeel, elasticity, softness, smoothness, waterproofness and the like. Therefore, the fat-liquoring agent is the environment-friendly and good-performance amphoteric fat-liquoring agent.

Description

technical field [0001] The invention relates to a method for preparing a silicone-modified fatliquor for leather, in particular to a method for preparing a polyether-type silicone-modified fatliquor for leather. Background technique [0002] With the rapid development of leather industry in our country, China has become the manufacturing center and trade center of the world leather industry. However, while the tanning industry has brought considerable economic benefits to our country, it has also brought serious environmental pollution problems. As people gradually pay attention to the natural environment and their own living conditions. The development and application of new materials, new processes and new technologies with low pollution, low cost, energy saving and time saving has become one of the research hotspots at home and abroad (Wu Qi. Biotechnology and Clean Production [J]. China Leather, 2000, 29(9): 3-4.) [0003] Fatliquor is one of the most used leather che...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C14C9/02
Inventor 马建中吕斌高党鸽姚清
Owner SHAANXI UNIV OF SCI & TECH
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