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Polymer emulsifier for emulsion explosive and preparation method thereof

A polymer emulsifier and emulsified explosive technology, which is applied in the direction of non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve the problems that the low-shear emulsification ability and storage stability of emulsifiers cannot meet the requirements, and achieve Excellent low-shear milking ability, good emulsifying performance and emulsifying stability, and wide source of raw materials

Active Publication Date: 2017-12-08
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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  • Polymer emulsifier for emulsion explosive and preparation method thereof
  • Polymer emulsifier for emulsion explosive and preparation method thereof
  • Polymer emulsifier for emulsion explosive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 prepares polymer emulsifier for emulsion explosive

[0022] Follow the steps below:

[0023] (1) Put the propylene-isobutylene copolymer into the reaction kettle, heat to 70°C, add glutaconic acid and a catalytic amount of tert-butyl peroxide catalyst under the condition of nitrogen protection, keep stirring for 2 hours, and heat up to 180°C °C, reacted for 7h, and filtered to obtain polyolefin glutaconate;

[0024] (2) Throw the polyolefin glutaconic acid synthesized in step (1) back into the reaction kettle, add 60N base oil and glycerin under the condition of nitrogen protection, heat while stirring, raise the temperature to 110°C, and react for 6 hours to obtain the ester chemical 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 0.931 g / mL...

Embodiment 2

[0027] Embodiment 2 prepares the polymer emulsifier for emulsified explosive

[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 reactor, add 150N base oil and trimethylolethane under the condition of nitrogen protection, heat while stirring, and raise the temperature to 160°C, and react 4h, the esterification product was obtained;

[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 0.883 g / mL , the acid value is 8.2mgKOH / g, the viscosity is 141.39mm 2 / s, the yield is 96%.

[0032] In...

Embodiment 3

[0033] Embodiment 3 prepares the polymer emulsifier for emulsified explosive

[0034] Follow the steps below:

[0035] (1) Put polyisobutylene into a reaction kettle, heat to 75°C, add maleic anhydride under nitrogen protection, keep stirring for 1.5h, heat up to 220°C, react for 5h, and filter to obtain polyisobutylene succinic anhydride;

[0036] (2) The polyisobutylene succinic anhydride synthesized by step (1) is thrown back into the reactor, and 220N base oil, dipropylene glycol and trimethylolpropane are added under nitrogen protection conditions, heated while stirring, and heated to 150°C, react for 5 hours to obtain the esterification product;

[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 0.917 g / mL , the acid value is 10.3mgKOH / g, the viscosity is 176.29mm 2 / ...

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Abstract

The invention discloses a novel emulsion explosive polymer emulsifier. The novel emulsion explosive polymer emulsifier is prepared from polyolefin, dicarboxylic acid or acid anhydride, polyol, hydrazine and diluent oil, wherein a mole ratio of polyolefin, dicarboxylic acid or acid anhydride, polyol to hydrazine is 1.0: 1.0-2.0: 1.0-1.5: 0.4-0.6 and the mass of the diluent oil is 0.5-1.5 times that of polyolefin. The preparation method comprises 1, adding polyolefin into a reactor, heating the polyolefin to a temperature of 70-80 DEG C, adding dicarboxylic acid or acid anhydride into the polyolefin, carrying out stirring, heating and reaction processes, and filtering the reaction product, 2, returning the compound synthesized by the step 1 into the reactor, adding diluent oil and polyol into the synthesized compound, and carrying out stirring heating for a heat reaction to obtain an esterification product, and 3, cooling the esterification product, adding hydrazine into the product and carrying out a reaction process. The polymer emulsifier is especially suitable for low shear emulsification or mixing emulsification technology-based preparation of a latex matrix.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a polymer emulsifier for emulsion explosives and a preparation method thereof. Background technique [0002] The properties of emulsifiers have an important impact on the quality, explosive performance and storage performance of emulsion explosives. Therefore, the performance of emulsifiers has been paid more and more attention by the emulsion explosives industry. [0003] Polyolefin emulsifiers for emulsion explosives originated from polyisobutylene succinimide ashless dispersants in lubricating oil additives, and most of the subsequent research and development of 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 difficult to emulsify. In addition, its...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/14C08J3/24C06B23/00C08F210/06C08F110/06C08F110/10C08F110/02C08F110/14
CPCC06B23/00C08F8/14C08J3/24C08J2323/06C08J2323/12C08J2323/14C08J2323/20C08F210/06C08F110/06C08F110/10C08F110/02C08F110/14
Inventor 赵华平董云贾紫永周桂松杜华善
Owner CHINA GEZHOUBA GRP YIPULI CO LTD