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Novel high-molecular emulsifying agent for mixed explosive and preparation method thereof

A polymer emulsifier and mixed technology, which is applied to non-explosive/non-thermal components, explosives, offensive equipment, etc., can solve the problems of the emulsifier's low-shear emulsification ability and storage stability can not meet the requirements, and achieve Excellent low shear milking ability, good emulsification performance and emulsification stability, and the effect of wide source of raw materials

Active Publication Date: 2016-01-27
CHINA GEZHOUBA GRP YIPULI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of latex-based low-shear emulsification technology, the requirements for emulsifiers used in emulsified explosives are becoming more and more stringent. The current emulsifiers have low-shear emulsification ability and storage stability that cannot meet the requirements.

Method used

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  • Novel high-molecular emulsifying agent for mixed explosive and preparation method thereof
  • Novel high-molecular emulsifying agent for mixed explosive and preparation method thereof
  • Novel high-molecular emulsifying agent for mixed explosive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1 prepares polymer emulsifier for novel mixed explosive

[0022] Follow the steps below:

[0023] (1) Put polyisobutylene into the reaction kettle, heat to 70°C, add maleic anhydride and a catalytic amount of benzoyl peroxide tert-butyl peroxide under the condition of nitrogen protection, keep stirring for 2 hours, heat up to 180°C, and react for 7 hours , filtered to obtain polyisobutylene succinic anhydride;

[0024] (2) Throw the polyisobutylene succinic anhydride synthesized in step (1) back into the reaction kettle, add 60N base oil and diglycerin under the condition of nitrogen protection, heat while stirring, raise the temperature to 110°C, and react for 6h to obtain Esterification products;

[0025] (3) Cool the esterification product synthesized in step (2) to 65° C., add hydrazine (i.e. hydrazine) under nitrogen protection conditions, and keep stirring for 6 hours to obtain the polymer emulsifier of the present invention with a density of 0.892 g / ...

Embodiment 2

[0027] Embodiment 2 prepares polymer emulsifier for novel mixed explosives

[0028] Follow the steps below:

[0029] (1) Put polypropylene into a reaction kettle, heat to 80°C, add maleic acid under nitrogen protection, keep stirring for 1 hour, heat up to 240°C, react for 3 hours, and filter to obtain polypropylene succinic acid;

[0030] (2) Throw the polypropylene succinic acid synthesized in step (1) back into the reaction kettle, add 150N base oil and tetraglycerin under the condition of nitrogen protection, heat while stirring, raise the temperature to 160°C, and react for 4 hours to obtain Esterification products;

[0031] (3) Cool the esterification product synthesized in step (2) to 90° C., add hydrazine (i.e. hydrazine) under nitrogen protection conditions, and keep stirring for 1 hour to obtain the polymer emulsifier of the present invention with a density of 0.909 g / mL , the acid value is 11.7mgKOH / g, the viscosity is 203.61mm 2 / s, the yield is 96%.

[0032] I...

Embodiment 3

[0033] Example 3 Preparation of polymer emulsifier for novel mixed explosives

[0034] Follow the steps below:

[0035] (1) Put the propylene-isobutylene copolymer into the reaction kettle, heat to 75°C, add maleic acid under the condition of nitrogen protection, keep stirring for 1.5h, heat up to 220°C, react for 5h, and filter to obtain polyolefin butadiene acid;

[0036] (2) Throw the polyolefin succinic acid synthesized in step (1) back into the reaction kettle, add 220N base oil and hexaglycerin under the condition of nitrogen protection, heat while stirring, raise the temperature to 150°C, and react for 5 hours to obtain Esterification products;

[0037] (3) Cool the esterification product synthesized in step (2) to 75° C., add hydrazine (i.e. hydrazine) under nitrogen protection conditions, and keep stirring for 5 hours to obtain the polymer emulsifier of the present invention with a density of 0.927 g / mL , the acid value is 14.6mgKOH / g, the viscosity is 233.07mm 2 ...

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Abstract

The invention discloses a novel high-molecular emulsifying agent for mixed explosive. The novel high-molecular emulsifying agent is prepared by polyolefin, dicarboxylic acid or anhydride, polyglycerol, hydrazine and diluted oil, wherein the molar ratio of the polyolefin, the dicarboxylic acid or anhydride, the polyglycerol and the hydrazine is 1.0:1.0-2.0:0.4-1.2:0.3-0.7; the mass of the diluted oil is 0.2-1.5 times that of the polyolefin. The invention also discloses a preparation method of the emulsifying agent. The preparation method comprises the following steps of: (1) putting the polyolefin into a reaction kettle, heating to 70-80 DEG C, adding the dicarboxylic acid or the anhydride, stirring, heating, reacting and filtering; (2) putting the compound synthesized in the step (1) back into the reaction kettle, adding the diluted oil and the polyglycerol, stirring and heating simultaneously, rising the temperature and reacting to obtain an esterified product; (3) cooling the esterified product, adding the hydrazine, and reacting to obtain the novel high-molecular emulsifying agent. The novel high-molecular emulsifying agent disclosed by the invention is especially suitable for preparing the emulsion matrix by a low-shearing emulsion or mixed emulsion process.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a novel polymer emulsifier for mixed explosives and a preparation method thereof. Background technique [0002] The performance of the emulsifier has an important influence on the quality, explosive performance and storage performance of the mixed emulsion explosive. Therefore, the performance of emulsifiers has been paid more and more attention by the emulsion explosives industry. [0003] Polyolefin emulsifiers for mixed emulsified explosives originated from polyisobutylene succinimide ashless dispersants in lubricating oil additives, and most of the subsequent research and development of various polyolefin emulsifiers are based on this. The advantage of polyisobutylene succinimide emulsifier is that the emulsion explosive prepared by it is relatively stable, and the storage time is relatively long; but its emulsifying performance is relatively poor, and it is diffi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00
Inventor 赵华平贾紫永董云周桂松杜华善
Owner CHINA GEZHOUBA GRP YIPULI CO LTD