CN106317553B - High strength detonating tube and preparation method thereof - Google Patents
High strength detonating tube and preparation method thereof Download PDFInfo
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- CN106317553B CN106317553B CN201610665800.4A CN201610665800A CN106317553B CN 106317553 B CN106317553 B CN 106317553B CN 201610665800 A CN201610665800 A CN 201610665800A CN 106317553 B CN106317553 B CN 106317553B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B3/00—Blasting cartridges, i.e. case and explosive
- F42B3/22—Elements for controlling or guiding the detonation wave, e.g. tubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Abstract
The invention discloses high strength detonating tubes and preparation method thereof, including inorganic nanometer-powder is modifies and (or) organic oligomer object modifier modification polythene material made of detonator, the inorganic nanometer-powder is modifies and (or) organic oligomer object modifier modification polythene material includes the raw material of following parts by weight: 70-90 parts of high density polyethylene (HDPE)；30-40 parts of low density polyethylene (LDPE)；Inorganic nanometer-powder is modifies and (or) 30-50 parts of organic oligomer object modifying agent；2-6 parts of coupling agent；4-8 parts of age resister；3-5 parts of dispersing agent.Production method of the invention is simple, low in cost, easy to industrialized production, can bring good social and economic benefit.
Description
Technical field
The present invention relates to detonator preparation technical field more particularly to high strength detonating tubes and preparation method thereof.
Background technique
There are mainly two types of the current manufacture production methods of plastics (PE) detonator both at home and abroad, the first is domestic most common list
Platform squeezes out the common detonator manufacturing technology of single layer, and advantage is: at low cost, process is mature；The disadvantage is that: tension intensity
Small, the problems such as detonator is soft, construction is inconvenient, be for second with the external double-deck detonator production technology introduced as representative, and this
The double-deck detonator production technology of kind divides two classes again, and one kind is secondary operation, manually big pipe sleeve tubule reaches enhancing and changes outer layer
Big tubing matter reaches high strength detonating tube or functional product, such as: oil-resisting type, heat-resistance type, high strength type, while improving detonator
Rigidity, facilitates construction.Another kind of is that an extruder first squeezes out small tubing, then again by dragger through second extruder pair
The shortcomings that small tube surfaces packet carries out coating enhancing processing, this kind of bilayer detonator production equipment manufacturing technology be product cost it is high,
Detonator equipment is expensive, process route is long.
Summary of the invention
Technical problems based on background technology, the invention proposes high strength detonating tubes and preparation method thereof.
The technical scheme of the present invention is realized as follows:
The raw material of high strength detonating tube, parts by weight is as follows:
Preferably, the modifying agent is one of inorganic nanometer powder, organic oligomer object or a variety of.
Preferably, the inorganic nanometer powder is nano level light calcium carbonate, nano silicon oxide, nano-cerium oxide, nanometer
One of zinc oxide is a variety of.
Preferably, the organic oligomer object is oligomer polyethylene, in oligomer polyisobutene, oligomer isoprene
It is one or more.
Preferably, the proportion of the inorganic nanometer powder and organic oligomer object is 0-10:10-0.
Preferably, the optimal proportion of the inorganic nanometer powder and organic oligomer object is 1:1.
Preferably, the age resister is retardant POE compound material, and the retardant POE compound material includes the raw material of following parts by weight:
Polyolefin resin: 55-65 parts；
Octene: 35-45 parts.
Preferably, the coupling agent is using titanate coupling agent, silane coupling agent, aluminate coupling agent, phosphate coupling
One of agent, boric acid ester coupler.
Preferably, the dispersing agent uses one of acrylate, butyl stearate, polyethylene glycol.
The ionic liquid is 1- methyl -3- ethyl imidazol(e) hexafluorophosphate, 1- methyl -3- ethyl imidazol(e) tetrafluoro boric acid
Salt, 1- methyl -3- butyl imidazole hexafluorophosphate, 1- methyl -3- butyl imidazole tetrafluoroborate, 1- methyl -3- hexyl imidazolium
Hexafluorophosphate, 1- methyl -3- hexyl imidazolium tetrafluoroborate, 1,2- dimethyl -3- ethyl imidazol(e) hexafluorophosphate, 1,2- bis-
Methyl -3- ethyl imidazol(e) tetrafluoroborate, 1,2- dimethyl -3- butyl imidazole hexafluorophosphate, 1,2- dimethyl -3- butyl miaow
Azoles tetrafluoroborate, 1,2- dimethyl -3- hexyl imidazolium hexafluorophosphate, 1,2- dimethyl -3- hexyl imidazolium tetrafluoroborate,
N- ethylpyridine hexafluorophosphate, N- ethylpyridine tetrafluoroborate, N- butyl-pyridinium hexafluorophosphate, N- butyl-pyridinium tetrafluoro
Borate, N- hexyl pyridine hexafluorophosphate and N- hexyl pyridinium tetrafluoroborate salt are any one or more of.
The invention also provides the preparation methods of high strength detonating tube, include the following steps:
Modifying agent is put into the baking oven that temperature is 80-100 DEG C, 4-6h is dried by S1；
S2 is mixed by dried modifying agent with remaining component mixed at high speed 15-20min in a high speed mixer
Material；
S3 is plasticized mixed material；
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing.
Preferably, in S3, the plasticization temperature is 180-220 DEG C, and the fusion time is 5-10min.
Preferably, in S4, the extruder is a single layer extruder.
Preferably, in S7, the outer diameter of the detonator after the cooling and shaping is 2.8-3.0mm.
Preferably, in S8, the rolling speed of the detonator is 90-120m/min.
The present invention compared with prior art, the advantageous effects having:
1. the present invention will use low density polyethylene (LDPE) and high density polyethylene (HDPE) as the carrier of inorganic nanometer powder, Neng Gouyou
Effect reduces mechanical property of the cost without influencing product, and using inorganic nano material, particle is small, is easy to be uniformly dispersed,
A kind of skeleton function can be played in plastic products, is had very great help to the stability of plastic products size, and the pulling force of product is improved
Intensity；Using organic oligomer object, it is therefore an objective to the issuable detonator hardening phenomenon because of the introducing of inorganic nano material is prevented,
The lustrous surface and profile pattern of product can also be improved, titanate coupling agent, the chain alkyl in metatitanic acid ester structure are added
The surface energy that can change inorganic matter interface, declines viscosity, the composite material of high filler loading capacity is made to show good melt flow
Dynamic property；Age resister retardant POE compound material is added, the narrow molecular weight distribution of retardant POE compound material has preferable mobility and polyene
Hydrocarbon compatibility is good, and good mobility can improve the dispersion effect of filler, and the impact strength and extension at break of product also can be improved
Rate facilitates the soft construction of product, meanwhile, there is no unsaturated double-bond in retardant POE compound material molecular structure, with excellent ageing-resistant
Performance.
2. ionic liquid is a kind of in room temperature or near room temperature be in liquid condition ionic compound.Ionic liquid itself
Possessed special construction feature, it is such as asymmetric, there is charge, polyfunctional group etc., so that its interfacial property and structure and routine
System can be very different.In Component System, the addition of ionic liquid reduces the interfacial tension between solid phase and solid phase, modifying agent
It is easier to be uniformly mixed with polyethylene, so that modified poly ethylene performance further increases, moreover, ionic liquid cooperates with work with dispersing agent
With facilitating the row of microemulsion environment in system at solving the technical problem dispersed admittedly；On the other hand, ionic liquid
Using improving the fusing flow rate of system.
3. production method of the invention is simple, one-pass molding is low in cost, easy to industrialized production, can bring good
Social and economic benefit.
4. there is detonator prepared by the present invention tension, wear-resistant, water resistant, folding, oil resistant and heatproof etc. to resist external interference energy
Power, detonation stability, detonator is not perforated after detonation, outer diameter 2.80nm-3.00mm；Explosion velocity is 1946ms-1-1972m·
s-1；At (20 ± 5) DEG C, tensile property is not less than 250N；Water repelling property is good, and detonation afterwards is impregnated for 24 hours in the 2m depth of water normally,
Without perforation, appearance is normal；With good oil-resistant characteristic, under (80 ± 5) DEG C, 0.03MPa pressure, impregnated for 24 hours with 0# diesel oil
Detonation is normal afterwards, no perforation；After impregnating 48 hours in (95 ± 5) DEG C hot water, rear detonation is normal, no perforation.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment 1
High strength detonating tube, the raw material including following parts by weight:
Preparation method includes the following steps:
Modifying agent is put into the baking oven that temperature is 80 DEG C, 4h is dried by S1；
S2 obtains mixture by dried modifying agent with remaining component mixed at high speed 15min in a high speed mixer
Material；
S3 is plasticized mixed material；Plasticization temperature is 180 DEG C, and the fusion time is 5min；
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing, rolling speed 90m/min.
Embodiment 2
High strength detonating tube, the nono calcium carbonate modified polythene material include the raw material of following parts by weight:
The ionic liquid: 0.5 part of 1- methyl -3- ethyl imidazol(e) tetrafluoroborate, 1- methyl -3- butyl imidazole hexafluoro phosphorus
0.3 part of hydrochlorate, 0.8 part of 1- methyl -3- butyl imidazole tetrafluoroborate, 0.2 part of 1- methyl -3- hexyl imidazolium hexafluorophosphate,
0.2 part of 1- methyl -3- hexyl imidazolium tetrafluoroborate, 2 parts of 1,2- dimethyl -3- ethyl imidazol(e) hexafluorophosphate, 1,2- diformazan
0.3 part of base -3- ethyl imidazol(e) tetrafluoroborate, 0.7 part of hexafluorophosphate of 1,2- dimethyl -3- butyl imidazole.
Preparation method includes the following steps:
Nano zine oxide is put into baking oven at a temperature of 90 °C, 5h is dried by S1；
S2 obtains mixture by dried nano zine oxide with remaining mixed at high speed 18min in a high speed mixer
Material；
S3 is plasticized mixed material；Plasticization temperature is 220 DEG C, and the fusion time is 10min；
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing；Rolling speed is 120m/min.
Embodiment 3
High strength detonating tube, the nono calcium carbonate modified polythene material include the raw material of following parts by weight:
Preparation method includes the following steps:
Modifying agent is put into the baking oven that temperature is 100 DEG C, 6h is dried by S1；
S2 obtains mixed material by modifying agent and with other components mixed at high speed 20min in a high speed mixer；
S3 is plasticized mixed material；Plasticization temperature is 205 DEG C, and the fusion time is 16min；
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing, rolling speed 95m/min.
Embodiment 4
High strength detonating tube, the nono calcium carbonate modified polythene material include the raw material of following parts by weight:
Preparation method includes the following steps:
Modifying agent is put into the baking oven that temperature is 85 DEG C, 4.5h is dried by S1；
S2 will receive modifying agent with remaining component mixed at high speed 18min in a high speed mixer, obtain mixed material；
S3 is plasticized mixed material；Plasticization temperature is 210 DEG C, and the fusion time is 8min；
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing, rolling speed 105m/min.
Embodiment 5
High strength detonating tube, the nono calcium carbonate modified polythene material include the raw material of following parts by weight:
Preparation method includes the following steps:
Modifying agent is put into the baking oven that temperature is 95 DEG C, 5.5h is dried by S1；
S2 obtains mixed material by modifying agent with remaining component mixed at high speed 20min in a high speed mixer；
S3 is plasticized mixed material；Plasticization temperature is 215 DEG C, and the fusion time is 9min
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing, rolling speed 92m/min.
Embodiment 6
High strength detonating tube, the nono calcium carbonate modified polythene material include the raw material of following parts by weight:
Preparation method includes the following steps:
Modifying agent is put into the baking oven that temperature is 92 DEG C, 5.0h is dried by S1；
S2 obtains mixed material by modifying agent with remaining component mixed at high speed 18min in a high speed mixer；
S3 is plasticized mixed material；Plasticization temperature is 195 DEG C, and the fusion time is 7min
The mixed material being plasticized is squeezed into the die head of extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying by S7；
S8 winds the detonator after sizing, rolling speed 93/min.
The comparison of 1 high strength detonating tube parameters of table
Note: comparative sample is commercially available conventional detonator in table.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of high strength detonating tube, which is characterized in that the raw material including following parts by weight:
The modifying agent is the mixture of inorganic nanometer powder, organic oligomer object；
The proportion of the inorganic nanometer powder and organic oligomer object is 1:1；
The organic oligomer object is one of oligomer polyethylene, oligomer polyisobutene, oligomer isoprene or a variety of；
The age resister is retardant POE compound material, and the retardant POE compound material includes the raw material of following parts by weight:
Polyolefin resin: 55-65 parts；
Octene: 35-45 parts.
2. high strength detonating tube according to claim 1, which is characterized in that the inorganic nanometer powder is nanoscale lightweight
One of calcium carbonate, nano silicon oxide, nano-cerium oxide, nano zine oxide are a variety of.
3. high strength detonating tube according to claim 1, which is characterized in that the coupling agent using titanate coupling agent,
One of silane coupling agent, aluminate coupling agent, phosphate coupling agent, boric acid ester coupler.
4. high strength detonating tube according to claim 1, which is characterized in that the ionic liquid is 1- methyl -3- ethyl
Limidazolium hexafluorophosphate, 1- methyl -3- ethyl imidazol(e) tetrafluoroborate, 1- methyl -3- butyl imidazole hexafluorophosphate, 1- first
Base -3- butyl imidazole tetrafluoroborate, 1- methyl -3- hexyl imidazolium hexafluorophosphate, 1- methyl -3- hexyl imidazolium tetrafluoro boric acid
Salt, 1,2- dimethyl -3- ethyl imidazol(e) hexafluorophosphate, 1,2- dimethyl -3- ethyl imidazol(e) tetrafluoroborate, 1,2- diformazan
Base -3- butyl imidazole hexafluorophosphate, 1,2- dimethyl -3- butyl imidazole tetrafluoroborate, 1,2- dimethyl -3- hexyl imidazolium
Hexafluorophosphate, 1,2- dimethyl -3- hexyl imidazolium tetrafluoroborate, N- ethylpyridine hexafluorophosphate, N- ethylpyridine four
Borofluoride, N- butyl-pyridinium hexafluorophosphate, N- butyl-pyridinium tetrafluoroborate, N- hexyl pyridine hexafluorophosphate and N- oneself
Yl pyridines tetrafluoroborate is any one or more of.
5. high strength detonating tube according to claim 1, which is characterized in that the dispersing agent uses acrylate, tristearin
One of acid butyl ester, polyethylene glycol.
6. the preparation method of high strength detonating tube according to claim 1, which is characterized in that method and step is as follows:
Modifying agent is put into the baking oven that temperature is 80-100 DEG C, 4-6h is dried by S1；
S2, by dried modifying agent, high density polyethylene (HDPE), low density polyethylene (LDPE), coupling agent, age resister, dispersing agent, in height
Fast mixing machine high speed mixes 15-20min, obtains mixed material；
S3 is plasticized mixed material；The plasticization temperature is 180-220 DEG C, and the fusion time is 5-10min；
The mixed material being plasticized is squeezed into the die head of single layer extruder by S4 after drying, then squeezes out single layer hollow base
Fine explosive powder is then passed through die head inner hole uniform adhesion on base inside pipe wall by pipe；
S5 carries out cooling and shaping to the base pipe for having adhered to fine explosive powder；
S6 is heated and is stretched to the base pipe in S5；
Base pipe after stretching is carried out cooling and shaping, drying, the detonator after must being formed by S7；The outer diameter of detonator after sizing
For 2.8-3.0mm；
S8 winds the detonator after sizing, and the rolling speed of detonator is 90-120m/min.
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| CN110054874A (en) * | 2018-01-18 | 2019-07-26 | 邦泰复合材料股份有限公司 | High gravity compounds and its made BB bullet |
| CN108586863A (en) * | 2018-03-28 | 2018-09-28 | 中国葛洲坝集团易普力股份有限公司 | Single layer high reliability detonator and preparation method thereof |
| CN116162312B (en) * | 2022-12-26 | 2024-05-03 | 湖南工业职业技术学院 | High polymer material wear-resistant concrete conveying pipeline |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296883A (en) * | 2000-11-14 | 2001-05-30 | 刘永丰 | Material for making high-strength plastic detonating tube |
| CN101910281A (en) * | 2007-12-05 | 2010-12-08 | 纽约州立大学研究基金会 | Polyolefin nanocomposites with functional ionic liquids and carbon nanofillers |
| CN102690456A (en) * | 2011-03-25 | 2012-09-26 | 刘永峰 | Materials for manufacturing high-strength plastic detonating tube |
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2016
- 2016-08-14 CN CN201610665800.4A patent/CN106317553B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296883A (en) * | 2000-11-14 | 2001-05-30 | 刘永丰 | Material for making high-strength plastic detonating tube |
| CN101910281A (en) * | 2007-12-05 | 2010-12-08 | 纽约州立大学研究基金会 | Polyolefin nanocomposites with functional ionic liquids and carbon nanofillers |
| CN102690456A (en) * | 2011-03-25 | 2012-09-26 | 刘永峰 | Materials for manufacturing high-strength plastic detonating tube |
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