Method for preparing glycerin zinc

A technology of zinc glycerol and glycerin solution, which is applied in the field of preparation of zinc glycerol, can solve the problems of long reaction time, harsh synthesis conditions, troublesome operation, etc., and achieve the effect of simple and easy synthesis process

Inactive Publication Date: 2010-05-12
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the synthesis of zinc glycerol can be carried out by atmospheric distillation or vacuum distillation, but there are many disadvantages: first, the reaction time is long, the temperature requirement is relatively high, and the operation is troublesome
Second, the synthesis conditions are relatively harsh and a catalyst is required

Method used

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  • Method for preparing glycerin zinc
  • Method for preparing glycerin zinc

Examples

Experimental program
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Effect test

example 1

[0015] Example 1, take 0.005mol / L Zn(CH 3 COO) 2 2H 2 O glycerol solution in a 50mL round-bottomed flask, put the round-bottomed flask into a microwave oven, 680W power, and microwave for 3 minutes. Glycerol zinc nanoparticles with a particle diameter of 23 nm were obtained by centrifugation.

example 2

[0016] Example 2, take 0.006mol / L Zn(CH 3 COO) 2 2H 2 O glycerol solution in a 50mL round-bottomed flask, put the round-bottomed flask into a microwave oven, 740W power, and microwave for 4 minutes. Glycerol zinc nanoparticles with a particle size of 29 nm were obtained by centrifugation.

[0017] Example 3, take 0.007mol / L Zn(CH 3 COO) 2 2H 2 O glycerol solution in a 50mL round-bottomed flask, put the round-bottomed flask into a microwave oven, 800W power, and microwave for 4 minutes. Glycerol zinc nanoparticles with a particle size of 37 nm were obtained by centrifugation.

[0018] Example 4, take 0.008mol / L Zn(CH 3 COO) 2 2H 2 O glycerol solution in a 50mL round-bottom flask, put the round-bottom flask into a microwave oven, 800W power, and microwave for 6 minutes. Glycerol zinc nanoparticles with a particle diameter of 48nm were obtained by centrifugation.

[0019] Example 5, take 0.08mol / L Zn(CH 3 COO) 2 2H 2 O glycerol solution in a 50mL round-bottom flask,...

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Abstract

The invention relates to a method for preparing glycerin zinc. The method comprises the steps of placing zinc acetate glycerite into a microwave oven, carrying out reflux reaction by microwave heating under stirring till the solution becomes faint yellow and then stopping microwave heating to obtain the glycerin zinc. In the invention, the reaction occurs under normal pressure without any catalyst, the reaction condition of high-temperature heating is avoided, the reaction time is shortened to be within 10 minutes, any impurity can not be introduced, and any treatment is not needed for the reactant and product. The invention has simple and easy process, is safe and reliable and has no danger or environmental pollution. The glycerin zinc nanometer particles can be obtained by controlling the concentration of the zinc acetate glycerite, the microwave heating power and the reaction time.

Description

1. Technical field [0001] The invention relates to a preparation method of zinc glycerol. 2. Background technology [0002] In the polymer industry, zinc glycerol is used as a light stabilizer for plastics and rubber because of its good UV resistance, non-toxicity, and non-coloring. At the same time, zinc glycerol also has excellent thermal stability. Under the same conditions, the composite heat stabilizer made of zinc glycerol is much better than the commonly used composite heat stabilizer. Therefore, it is used in polymer materials such as rubber, PVC resin, and plastics. Adding glycerol zinc composite heat stabilizer, its stabilizing effect is almost twice that of ordinary composite heat stabilizers, and it has a good anti-aging effect in polymer materials. Zinc glycerol is also widely used in medical hygiene and cosmetics. At present, the synthesis of zinc glycerol can be carried out by atmospheric distillation or vacuum distillation, but there are many disadvantages:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C31/28C07C29/70
Inventor 杨汉民李金林刘浩文
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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