Emulsifier for emulsion explosive and preparation method for emulsifier

A technology for emulsifying explosives and emulsifiers, used in non-explosive/non-thermal components, explosives, offensive equipment, etc., can solve the problems of difficult emulsification, high price, poor emulsifying performance, etc., and achieve good stability, low cost, Excellent emulsifying performance

Active Publication Date: 2012-09-19
JIANGXI GANZHOU GUOTAI SPECIALTY CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the emulsifying performance is relatively poor, and it is difficult to emulsify. In

Method used

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  • Emulsifier for emulsion explosive and preparation method for emulsifier
  • Emulsifier for emulsion explosive and preparation method for emulsifier
  • Emulsifier for emulsion explosive and preparation method for emulsifier

Examples

Experimental program
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Example Embodiment

[0023] Example 1

[0024] Mix 80g of polyisobutylene succinic anhydride (Mn=1030g / mol) with a saponification value of 108.86mg / gKOH, 20g of hexaglycerol and 80g of n-octane, and under the protection of nitrogen, the temperature is raised to 80℃, and the reaction is stirred for 4h. , The solvent is removed to obtain the emulsifier P1 of the present invention.

Example Embodiment

[0025] Example 2

[0026] Mix 80g of polyisobutylene succinic anhydride (Mn=1030g / mol) with a saponification value of 108.86mg / gKOH, 35g of hexapolyglycerol and 100g of n-octane, and add a catalyst with a mass (total mass of anhydride and polyglycerol) of 1.0% The p-toluene sulfonic acid is heated to 120° C. under the protection of nitrogen, and the reaction is stirred for 2.5 hours. After the reaction is completed, the solvent is removed to obtain the emulsifier P2 of the present invention.

Example Embodiment

[0027] Example 3

[0028] Mix 80g of polyisobutylene succinic anhydride (Mn=1030g / mol) with a saponification value of 108.86mg / gKOH, 70g of hexaglycerol and 120g of n-octane, and add a catalyst with a mass (total mass of anhydride and polyglycerol) of 1.5% The p-toluene sulfonic acid is heated to 130° C. under the protection of nitrogen, and the reaction is stirred for 9.0 h. After the reaction is completed, the solvent and unreacted glycerin are removed to obtain the emulsifier P3 of the present invention.

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Abstract

The invention relates to an emulsifier for an emulsion explosive and a preparation method for the emulsifier. The emulsifier is a poly-alkyl carboxylic acid polyglycerol ester-type emulsifier obtained by performing esterification on poly-alkyl succinic anhydride and polyglycerol, wherein the component of the poly-alkyl succinic anhydride is 500-3500, and the degree of polymerization of the polyglycerol is 2-12. The emulsifier is good in emulsifying property. When the emulsion explosive is prepared, an emulsion can be easily formed, and the storage stability of the emulsion explosive is improved. The emulsifier is suitable for preparing the emulsion explosive with a longer storage time.

Description

technical field [0001] The invention relates to an emulsifier mainly used for preparing emulsion explosives and a preparation method thereof. Background technique [0002] Emulsifier is a key and important component used in the emulsion explosive industry. It makes the oxidant water phase and fuel oil phase form a water-in-oil emulsion explosive matrix and also has dispersion effects; the performance of the emulsifier determines the explosion of the emulsion explosive. performance and storage performance. [0003] At present, the emulsifiers used in the production of emulsion explosives are mainly SPAN-80 and polybutene butadiimine (single-hanging and double-hanging) emulsifiers. The advantage of SPAN-80 is that it is easy to emulsify, and it can form a latex matrix at a lower temperature and lower rotational speed, but the molecular structure contains double bonds, which are easy to demulsify and crystallize after being oxidized, making the emulsified emulsion prepared by ...

Claims

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Application Information

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IPC IPC(8): C06B23/00
Inventor 许虎君罗强章宋春丽
Owner JIANGXI GANZHOU GUOTAI SPECIALTY CHEM
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