CN110256179A - A kind of Compound emulsifier for emulsion explosive - Google Patents
A kind of Compound emulsifier for emulsion explosive Download PDFInfo
- Publication number
- CN110256179A CN110256179A CN201910652976.XA CN201910652976A CN110256179A CN 110256179 A CN110256179 A CN 110256179A CN 201910652976 A CN201910652976 A CN 201910652976A CN 110256179 A CN110256179 A CN 110256179A
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- China
- Prior art keywords
- emulsifying agent
- compound emulsifying
- modified silica
- dioxide granule
- emulsifier
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Classifications
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/006—Stabilisers (e.g. thermal stabilisers)
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/009—Wetting agents, hydrophobing agents, dehydrating agents, antistatic additives, viscosity improvers, antiagglomerating agents, grinding agents and other additives for working up
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cosmetics (AREA)
- Silicon Compounds (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a kind of Compound emulsifier for emulsion explosive, the compound emulsifying agent is constituted by oleic-acid surfactant and with hydrophobically modified silica dioxide granule, wherein, any one or a few mixture of the hydrophobically modified silica dioxide granule in dimethyldichlorosilane modified silica particles, polydimethylsiloxane--modified silica dioxide granule, hexamethyldisilazane modified silica particles.With the Lithium Oxides By Detonation With Emulsion Explosive performance of compound emulsifying agent preparation and have excellent storage stability.
Description
Technical field
The present invention relates to a kind of Compound emulsifier for emulsion explosive, belong to emulsion explosives technology field.
Background technique
Emulsifier is a key component in emulsion, is to influence Lithium Oxides By Detonation With Emulsion Explosive performance and storage stability
Key factor.Emulsifier is commonly used in emulsion at present mainly two kinds of creams of Span-80 and Derivatives of Polyisobutylene Succinic Anhydrides
Agent.The former emulsifying capacity is strong, but molecular weight is small, and the Storage Stability of Emulsion Explosive of preparation is poor.Latter having molecular weight is high, can be
Three-dimensional network system is formed in emulsion, can improve the storage stability of emulsion to a certain extent, but emulsifying power
Power is not strong, especially weaker at newborn ability.Therefore, many researchers are proposed Span-80 and polyisobutylene succinic acid
Two kinds of emulsifiers of acid anhydride derivative are compounded, and the advantages of compound emulsifying agent is with comprehensive two kinds of emulsifiers is prepared into.However, this kind multiple
Co-emulsifier, although having some improvement at the storage stability of newborn ability and prepared explosive, effect is not still very bright
It is aobvious.Therefore, research NEW TYPE OF COMPOSITE emulsifier is for improving emulsifier into newborn ability, while extending Storage Stability of Emulsion Explosive very
It is important.
Summary of the invention
In order to solve the problems in the existing technology, the present invention proposes a kind of Compound emulsifier for emulsion explosive, with this
The emulsion of compound emulsifying agent preparation has excellent explosion property and storage stability.
To achieve the above object, the invention adopts the following technical scheme:
A kind of Compound emulsifier for emulsion explosive, the compound emulsifying agent by oleic-acid emulsifier and with it is hydrophobically modified
Silica dioxide granule is constituted.
Further, the oleic-acid emulsifier includes dehydrating sorbitol monooleate, triethanolamine oleate, oleic acid two
The mixture of any one or more of ethanol amine, Monoethanolamine Oleate.
Further, the partial size of the hydrophobically modified silica dioxide granule is 10~100nm.
Further, the hydrophobically modified silica dioxide granule is selected from dimethyldichlorosilane improved silica
Any one in grain, polydimethylsiloxane--modified silica dioxide granule, hexamethyldisilazane modified silica particles
Or several mixture.
Further, the mass ratio of the silica dioxide granule of hydrophobically modified and oleic-acid emulsifier is 1 in compound emulsifying agent:
4~9.
Compared with prior art, the beneficial effects of the present invention are:
(1) compound emulsifying agent can effectively extend the storage stability of emulsion and improve explosion properties.(2) should
Compound emulsifying agent, raw material are environmentally friendly and are easy to get, and additive amount is few, promotional value with higher.(3) compound emulsifying agent is lower
Emulsification revolving speed under, the emulsion of function admirable can be prepared, improve the essential safety of the production of emulsion explosive
Property.
Specific embodiment
The invention is further illustrated by the following examples, but the present invention is not limited to the embodiment described.
Embodiment one:
90g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 1.
Embodiment two:
90g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 100nm) stir lower mixing 5h, obtain compound emulsifying agent 2.
Embodiment three:
90g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 50nm) stir lower mixing 5h, obtain compound emulsifying agent 3.
Example IV:
90g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g polydimethylsiloxanes are added
Alkane modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 4.
Embodiment five:
90g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 5g dimethyl silicone polymer is added
(grain diameter is for modified silica particles (grain diameter 10nm) and 5g hexamethyldisilazane modified silica particles
10nm), stirring is lower mixes 5h, obtains compound emulsifying agent 5.
Embodiment six:
40g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 6.
Embodiment seven:
40g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 6g dimethyldichlorosilane is added
Modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 7.
Embodiment eight:
90g anhydrosorbitol monoethanolamine is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 8.
Embodiment nine:
40g dehydrating sorbitol monooleate and 50g triethanolamine oleate are put into reaction kettle, 80 DEG C is heated to, adds
Enter 10g dimethyldichlorosilane modified silica particles (grain diameter 10nm), stirs lower mixing 5h, obtain composite emulsifying
Agent 9.Comparative example one:
100g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 10.
Comparative example two:
30g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, 10g dimethyl dichloro silicon is added
Alkane modified silica particles (grain diameter 10nm) stir lower mixing 5h, obtain compound emulsifying agent 11.
Comparative example three:
90g dehydrating sorbitol monooleate is put into reaction kettle, is heated to 80 DEG C, the unmodified titanium dioxide of 10g is added
Silicon particle (grain diameter 10nm) stirs lower mixing 5h, obtains compound emulsifying agent 12.
Using the compound emulsifying agent in the embodiment of the present invention, compound emulsifying agent and commercial emulsifier preparation cream in comparative example
Change explosive, investigates influence of the emulsifier type to emulsion performance and storage stability, preparation of emulsifying explosive such as table 1, emulsification
The variation such as table 2 of explosion velocity in explosion velocity of explosive and storage.
From in table 2 emulsion storage during explosion velocity variation it is found that compare commercially available compound emulsifying agent, Span-80
Compound emulsifying agent in emulsifier and comparative example is turned using the compound emulsifying agent provided in the embodiment of the present application in lower emulsification
Under fast and very low dosage, the emulsion of preparation explosion property and storage stability with higher illustrate the application
The emulsifier of offer has better emulsifiability and improves the ability of Storage Stability of Emulsion Explosive.
1 preparation of emulsifying explosive of table
| Emulsion composition | Quality/g |
| Ammonium nitrate | 69.5 |
| Sodium nitrate | 8 |
| Water | 16 |
| Diesel oil | 5 |
| Emulsifier | 1.2~2.5 |
| Sensitizer (glass microsphere) | 2 |
。
The variation of explosion velocity during the storage of 2 emulsion of table
Claims (6)
1. a kind of Compound emulsifier for emulsion explosive, which is characterized in that the compound emulsifying agent is by oleic-acid emulsifier and and warp
The silica dioxide granule of hydrophobically modified is constituted.
2. compound emulsifying agent as described in claim 1, which is characterized in that the oleic-acid emulsifier includes anhydrosorbitol
The mixture of any one or more of monoleate, triethanolamine oleate, oleic acid diethanol amine, Monoethanolamine Oleate.
3. compound emulsifying agent, which is characterized in that the partial size of the hydrophobically modified silica dioxide granule is 10~100nm.
4. compound emulsifying agent, which is characterized in that the hydrophobically modified silica dioxide granule is modified selected from dimethyldichlorosilane
Silica dioxide granule, polydimethylsiloxane--modified silica dioxide granule, in hexamethyldisilazane modified silica particles
Any one or a few mixture.
5. compound emulsifying agent, which is characterized in that the mass ratio of the silica dioxide granule of hydrophobically modified and oleic-acid emulsifier is 1:4
~9.
6. a kind of emulsion, which is characterized in that include compound emulsifying agent a method as claimed in any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652976.XA CN110256179B (en) | 2019-07-19 | 2019-07-19 | Composite emulsifier for emulsion explosive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652976.XA CN110256179B (en) | 2019-07-19 | 2019-07-19 | Composite emulsifier for emulsion explosive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110256179A true CN110256179A (en) | 2019-09-20 |
| CN110256179B CN110256179B (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910652976.XA Active CN110256179B (en) | 2019-07-19 | 2019-07-19 | Composite emulsifier for emulsion explosive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387760A (en) * | 2021-07-08 | 2021-09-14 | 新乡市瑞丰新材料股份有限公司 | Novel composite emulsifier for emulsion explosive |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10065898B1 (en) * | 2017-09-21 | 2018-09-04 | Exsa S.A. | Bulk pumpable granulated explosive mix |
| CN108640806A (en) * | 2018-08-27 | 2018-10-12 | 安徽理工大学 | A kind of Novel underground is mining gluey emulsion and preparation method thereof |
-
2019
- 2019-07-19 CN CN201910652976.XA patent/CN110256179B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10065898B1 (en) * | 2017-09-21 | 2018-09-04 | Exsa S.A. | Bulk pumpable granulated explosive mix |
| CN108640806A (en) * | 2018-08-27 | 2018-10-12 | 安徽理工大学 | A kind of Novel underground is mining gluey emulsion and preparation method thereof |
Non-Patent Citations (4)
| Title |
|---|
| NSENDA NGENDA TSHILUMBU，等: "Stabilization of highly concentrated emulsions with oversaturated dispersed phase: Effect of surfactant/particle ratio", 《CHEMICAL ENGINEERING RESEARCH AND DESIGN》 * |
| 化学工业部天津化工研究院，等: "《化工产品手册无机化工产品》", 31 October 1993, 化学工业出版社 * |
| 李有良，等: "《工业炸药生产技术》", 30 April 2016, 北京理工大学出版社 * |
| 马平，等: "机械制粉工艺粉状乳化炸药的配方研究", 《爆破器材》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113387760A (en) * | 2021-07-08 | 2021-09-14 | 新乡市瑞丰新材料股份有限公司 | Novel composite emulsifier for emulsion explosive |
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| CN110256179B (en) | 2022-01-18 |
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