Method for preparing multifunctional polymer-based nanometer ZnO composite tanning agent

A compound tanning agent and polymer technology, which can be used in small hide/big hide/leather/fur treatment, tanning treatment, small hide/big hide/leather skin/fur chemical treatment, etc. It can solve the problem of high surface energy of nanoparticles , poor stability, easy agglomeration and other problems, to achieve the effect of simple preparation method and increased stability

Inactive Publication Date: 2013-05-01
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high surface energy of nanoparticles, they are easy to agglom

Method used

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Examples

Experimental program
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Example Embodiment

[0018] Example 1

[0019] A method for preparing a multifunctional polymer-based nano-ZnO composite tanning agent, comprising the following steps:

[0020] 1) Take 1g of zinc acetate and 70mL of isopropanol, put them in a constant temperature water bath at 50°C, stir for 20min, add 1.5g of diethanolamine, and after 10min of reaction, add 0.25g of diallyldimethylammonium chloride, Incubate the reaction for 60min, and cool to room temperature after the reaction to obtain diallyldimethylammonium chloride modified ZnO sol;

[0021] 2) Mix 15 g of diallyl dimethyl ammonium chloride obtained in step 1) with 20 g of acrylic acid, 10 g of methacrylic acid and 2 g of hydroxyethyl acrylate to obtain a mixed monomer;

[0022] 3) Dissolve 4g of ammonium persulfate in 30g of water to obtain an initiator solution;

[0023] 4) Make 90g of deionized water and sodium bisulfite as a base, put it in a 60°C water bath, and add the initiator solution dropwise at the same time. Ammonium-modifi...

Example Embodiment

[0025] Example 2

[0026] A method for preparing a multifunctional polymer-based nano-ZnO composite tanning agent, comprising the following steps:

[0027] 1) Take 2g of zinc acetate and 120mL of isopropanol, put it in a constant temperature water bath at 55°C, stir for 15min, add 2.5g of diethanolamine, and after 15min of reaction, add 0.3g of diallyldimethylammonium chloride, Incubate the reaction for 30min, and cool to room temperature after the reaction to obtain diallyldimethylammonium chloride modified ZnO sol;

[0028] 2) Mix 20 g of diallyl dimethyl ammonium chloride prepared in step 1) with 15 g of acrylic acid, 13 g of methacrylic acid and 5 g of hydroxyethyl acrylate to obtain a mixed monomer;

[0029] 3) Dissolve 3.5g of ammonium persulfate in 30g of water to obtain an initiator solution;

[0030] 4) Make 85g of deionized water and sodium bisulfite as a base, put it in a water bath at 80 °C, and add the initiator solution dropwise at the same time. Ammonium-mo...

Example Embodiment

[0032] Example 3

[0033] A method for preparing a multifunctional polymer-based nano-ZnO composite tanning agent, comprising the following steps:

[0034] 1) Take 3g of zinc acetate and 150mL of isopropanol, put it in a constant temperature water bath at 45°C, stir for 10min, add 3.0g of diethanolamine, and after 20min of reaction, add 0.4g of diallyldimethylammonium chloride, Incubate the reaction for 90 min, and cool to room temperature after the reaction to obtain diallyl dimethyl ammonium chloride modified ZnO sol;

[0035] 2) Mix 30 g of diallyl dimethyl ammonium chloride prepared in step 1) with 30 g of acrylic acid, 15 g of methacrylic acid and 3.5 g of hydroxyethyl acrylate to obtain a mixed monomer;

[0036] 3) Dissolve 5g of ammonium persulfate in 30g of water to obtain an initiator solution;

[0037] 4) Make 90g of deionized water and sodium bisulfite as a base, put it in a water bath at 65°C, and add the initiator solution dropwise at the same time. Ammonium-...

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Abstract

A method for preparing a multifunctional polymer-based nanometer ZnO composite tanning agent is characterized by comprising the following steps: preparing modified ZnO soils by taking zinc acetate as a nanometer particle precursor and diallyldimethylammonium chloride as a modifying agent, and preparing a polymer-based nanometer ZnO composite tanning agent for a leather retanning procedure through a soil-in-situ polymerization method. Through adoption of the method, nanometer ZnO is uniformly dispersed in a polymeric matrix, so that the stability of the polymer-based nanometer ZnO composite tanning agent is improved. When the method is applied to the leather retanning procedure, the dyeing depth of the leather can be greatly increased so that the K/S value of the dyed leather is increased by 98.26 %, the fullness of the leather is improved so that the tanned leather is thickened by 20.88 %, and the leather is endowed with good antibacterial property and aging resistance.

Description

technical field [0001] The invention involves firstly using zinc acetate as a nanoparticle precursor to prepare diallyldimethylammonium chloride modified ZnO sol, and then preparing a sol for leather retanning process through sol-in-situ polymerization, which can greatly The invention discloses a method for improving the leather dyeing depth, increasing the aging resistance and antibacterial performance of the polymer-based nano ZnO composite tanning agent. Background technique [0002] The leather retanning process is an important process of leather making, which can improve and enhance the performance of leather, and determines the feel and style of finished leather. With the improvement of people's living standards, leather retanning materials with outstanding functions have become a market development trend. At present, the research on retanning agents with the functions of retanning, filling, fatliquoring and waterproofing has been reported [Zhang Baotan, Liu Bailing, ...

Claims

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Application Information

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IPC IPC(8): C14C3/22
Inventor 高党鸽李运马建中吕斌吕秀娟
Owner SHAANXI UNIV OF SCI & TECH
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