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A kind of preparation method of flame retardant and light resistance phosphorylated fatliquor

A phosphorylated fatliquoring agent and light fastness technology, which is applied in chemical treatment of small hide/big hide/leather/fur, small hide/big hide/leather/fur treatment, leather impregnation, etc. It can solve agglomeration, difficult Adding system and other problems to achieve the effect of improving heat release too fast, low price, and suitable for popularization and application

Inactive Publication Date: 2016-09-07
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because the phosphorylation reagent commonly used in the preparation of phosphorylated fatliquor: phosphorus pentoxide has high activity and fast reaction rate, but it is difficult to join the system and has the defects of agglomeration, so it is necessary to disperse phosphorus pentoxide

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0025] (1) Preparation of phosphorus pentoxide dispersion: mix 20g of phosphorus pentoxide, Sodium lignosulfonate Add 60g and 12g of chlorinated paraffin-70 into a 250ml three-necked flask, mix and stir at 70°C for 2 hours to obtain 90g of phosphorus pentoxide dispersion;

[0026] (2) Add 50g of castor oil, 0.25g of concentrated sulfuric acid and 0.15g of silver molybdate to a 500ml three-necked flask with a stirrer, heat up to 70°C, condense and reflux for 3 hours to obtain product A; (1) 90g of the prepared phosphorus pentoxide dispersion was stirred evenly, then heated to 70°C, and kept for 3 hours to obtain the product B;

[0027] (3) Add 10g of cinnamoylcaffeic acid to product B, stir evenly, heat up to 60°C, keep warm for 1 hour, then add 11g of N-(phosphonomethyl)glycine isopropylamine salt and 5.5g of cuprous chloride, and heat up to 70°C, stirred and reacted for 2 hours to obtain product D;

[0028] (4) Add 15ml of sodium hydroxide solution with a mass concentratio...

example 2

[0030] (1) Preparation of phosphorus pentoxide dispersion: Add 20g of phosphorus pentoxide, 60g of alkylphenol polyoxyethylene ether formaldehyde condensate sulfate and 12g of chlorinated paraffin-70 into a 250ml three-necked bottle, and mix at 70°C Stirring and reacting for 2 hours, 91 g of phosphorus pentoxide dispersion liquid was obtained;

[0031] (2) Add 50g of castor oil, 0.25g of concentrated sulfuric acid and 0.15g of silver molybdate into a 500ml three-neck flask with a stirrer, raise the temperature to 85°C, condense and reflux for 4 hours to obtain product A; (1) 91g of the prepared phosphorus pentoxide dispersion was stirred evenly, then heated to 90°C, and kept for 3 hours to obtain the product B;

[0032] (3) Add 15g of 2-methyl-2-butenyl-ferulic acid to product B, stir evenly, heat up to 80°C, keep warm for 3 hours, then add 11g of molybdic acid and 5.5g of cuprous chloride, and heat up to 70°C, stirred and reacted for 3 hours to obtain product D;

[0033] (4...

example 3

[0035] (1) Preparation of phosphorus pentoxide dispersion: Add 20g of phosphorus pentoxide, 60g of sodium dibutylnaphthalenesulfonate and 12g of chlorinated paraffin-70 into a 250ml three-necked flask, mix and stir at 70°C for 2h to obtain Phosphorus pentoxide dispersion 92g;

[0036] (2) Add 50g of castor oil, 0.25g of concentrated sulfuric acid and 0.15g of silver molybdate to a 500ml three-necked flask with a stirrer, raise the temperature to 78°C, condense and reflux for 3.5h to obtain product A; 92g of the phosphorus pentoxide dispersion prepared in the above (1) was stirred evenly, then the temperature was raised to 80°C, and the temperature was kept for 3.5 hours to obtain the product B;

[0037] (3) Add 12.5g of 2-methyl-2-butenyl-p-coumaric acid to product B, stir evenly, heat up to 70°C, keep warm for 3 hours, then add 11g of trisodium dodecamolybdenum phosphate and chlorine Cuprous chloride 5.5g, heated up to 70°C, stirred for 2.5h to obtain product D;

[0038] (4...

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Abstract

The invention discloses a method for preparing a flame-retardant and light-resistant phosphorylated fatliquoring agent. Add concentrated sulfuric acid and silver molybdate to castor oil, raise the temperature to 70-85°C, condense and reflux heat preservation reaction for 3-4 hours, and obtain product A ;Add phosphorus pentoxide dispersion liquid to product A, stir evenly, heat up to 70~90°C, keep warm for 3~4h, and get product B; add light-resistant material to product B, stir evenly, heat up to 60~80°C , heat preservation reaction for 1~3h, then add flame retardant material and cuprous chloride, raise the temperature to 70°C, stir and react for 2~3h to obtain product D; then add dropwise sodium hydroxide solution to product D to make it neutral, and obtain brown The yellow liquid is the flame-retardant and light-resistant phosphorylated fatliquoring agent; the prepared fatliquor not only maintains the sensory properties and mechanical strength of traditional fatliquor, but also has good flame resistance and light resistance.

Description

technical field [0001] The invention relates to a preparation method of a phosphorylated fatliquoring agent, in particular to a preparation method of a flame-retardant and light-resistant phosphorylated fatliquoring agent. Background technique [0002] With the improvement of people's living standards, furniture leather and automotive leather are also increasing. At the same time, fires caused by leather and synthetic leather are also increasing. Therefore, the flame retardant problem of leather has become a research hotspot in the industry. [0003] In the process of leather processing, fatliquoring is an essential process, which has a great influence on the sensory and mechanical properties of leather products. However, the fatliquor used for fatliquoring is easy to burn. Therefore, it is necessary to adjust the fatliquor Modification is carried out to reduce its flammability and improve its flame resistance, so as to meet the market demand for flame-retardant leather pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C9/02
Inventor 王艳飞
Owner ANYANG INST OF TECH
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