CN107254113A - A kind of family's optical fiber protection against the tide rodent-resistant cable material - Google Patents
A kind of family's optical fiber protection against the tide rodent-resistant cable material Download PDFInfo
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- CN107254113A CN107254113A CN201710326609.1A CN201710326609A CN107254113A CN 107254113 A CN107254113 A CN 107254113A CN 201710326609 A CN201710326609 A CN 201710326609A CN 107254113 A CN107254113 A CN 107254113A
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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
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
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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
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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
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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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
- Catching Or Destruction (AREA)
Abstract
The invention discloses a kind of family's optical fiber of proposition protection against the tide rodent-resistant cable material, its raw material includes by weight：40 80 parts of Corvic, 10 20 parts of polytetrafluoroethylene (PTFE), 38 parts of epoxyoleic acid butyl ester, compound 10 25 parts of phosphorus flame retardant, 5 20 points of hydrophobic particles, 12 parts of accelerator, 24 parts of expelling mouse agent, 15 parts of auxiliary agent；Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E；Expelling mouse agent, with matrix, is added a variety of rat destruction components and is made with galapectite.The reasonable compatibility that the present invention passes through raw material components, it is ensured that the excellent mechanical property performance of CABLE MATERIALS, improves waterproof fungicidal properties, the plague of rats is greatly reduced, possess good flame-retardance energy.
Description
Technical field
The present invention relates to cable material technical field, more particularly to a kind of family's optical fiber protection against the tide rodent-resistant cable material.
Background technology
Optical fiber transmission communication system is one of the most frequently used Transmission system in current communication system, recently as power network
High speed development, optical cable and electric substation's number of nodes are increased rapidly, and optical communication technique is widely applied in power system.In recent years
Carry out the phenomenon that family's optical fiber bitten broken by squirrel also increasingly to increase, great prestige is caused to the safe and stable operation of power telecom network
The side of body.In addition, in plum rain season, air humidity is big, and the humidity resistance of presently commercially available cable is unsatisfactory, usually there is infiltration existing
As have impact on optical fiber uses safety.Therefore, waterproof and dampproof CABLE MATERIALS that is functional, avoiding or reduce the plague of rats is developed favourable
In the application and development of optical fiber.
The content of the invention
The present invention proposes a kind of moistureproof rodent-resistant cable material of family's optical fiber, this invention ensures that the excellent mechanics of CABLE MATERIALS
Performance performance, improves waterproof fungicidal properties, the plague of rats is greatly reduced, and possesses good flame-retardance energy.
A kind of family's optical fiber proposed by the present invention is included by weight with moistureproof rodent-resistant cable material, its raw material：Polyvinyl chloride
40-80 parts of resin, 10-20 parts of polytetrafluoroethylene (PTFE), 3-8 parts of epoxyoleic acid butyl ester, compound 10-25 parts of phosphorus flame retardant, hydrophobic
5-20 points of grain, 1-2 parts of accelerator, 2-4 parts of expelling mouse agent, 1-5 parts of auxiliary agent；
Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E；Expelling mouse agent be with galapectite with
Matrix, addition rat destruction component is made.
Preferably, fiber powder is one or both of wood powder, bamboo charcoal powder, powder of straw thing mixed above.
Preferably, the weight ratio of fiber powder, dimethyl silicone polymer and Tissuemat E is 4-5 in hydrophobic particles：2-3：6-
8。
Preferably, the preparation process of hydrophobic particles includes：Tissuemat E is heated and melted, fiber powder and poly dimethyl is added
Siloxanes mixing granulation obtains hydrophobic particles.
Preferably, rat destruction component includes bamboo vinegar, glutathione and chitosan；Preferably, bamboo vinegar, glutathione and shell
The weight ratio of glycan is 10：2-3：4-6.
Preferably, galapectite and the weight ratio of rat destruction component are 10：4-6.
Preferably, the preparation process of expelling mouse agent includes：1) bamboo vinegar, glutathione, chitosan are weighed by proportioning and mixes equal
It is even to obtain mixture；2) add water stirring after galapectite is calcined, and is warming up to 70-85 DEG C, adds the concentrated sulfuric acid and is acidified, filtration washing,
Drying grinding obtains porous galapectite powder；3) porous galapectite powder is added in mixture, mixes equal under ultrasound condition
Even, drying obtains expelling mouse agent.
Preferably, ultrasonic power is 5000-7000Hz, and ultrasonic time is 20-30min.
Preferably, it is one in RDX fire retardants, TPP fire retardants, RDP fire retardants and BDP fire retardants to be combined phosphorus flame retardant
Plant or two or more mixtures.
Preferably, accelerator is thiazole accelerator, thuriam acceserator, Thiourea accelerator one or more
Mixture.
Preferably, auxiliary agent is more than one or both of ultraviolet light absorbent, lubricant, stabilizer, antioxidant mixed
Compound.
The present invention adds polytetrafluoroethylene (PTFE), improves the waterproof anti-corrosion performance of product using Corvic as major ingredient,
Epoxyoleic acid butyl ester and Corvic coordinate, and are to have good compatibility between system component, improve CABLE MATERIALS
Plasticising rate, cold-resistant and heat resistance；Fiber powder, dimethyl silicone polymer and Tissuemat E synergy in hydrophobic particles, significantly
The surface contact angle of CABLE MATERIALS is increased, water resistance is improved, the fire-retardant and security performance that phosphorus flame retardant improves product is combined,
Compound phosphorus flame retardant is acted synergistically with hydrophobic particles simultaneously, coordinates the layer structure of fiber powder, and fire retardant is promoted in burning
Form layer of charcoal to deposit on its surface, play a part of barrier gas diffusion and heat transfer, further improve the anti-flammability of material；
Expelling mouse agent is with natural bamboo vinegar and glutathione, chitosan mating reaction rat destruction component, and asepsis environment-protecting is anti-with good rat destruction
Bacterium acts on, and coordinates hydrophobic particles to have certain anti-mold effect；Galapectite has loose structure after calcining acidification, will drive
Mouse component is adsorbed on its surface, on the one hand improves the stability of rat destruction component, improves repellent effect；On the other hand, it is to avoid drive
Interaction between mouse component and other components, the performance to CABLE MATERIALS is not impacted；With thiazoles, thiurams, sulphur
Ureas refines internal structure, further improves water resistance as promotion property, effective control system state of cure (vulcanization).
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of family's optical fiber is included by weight with moistureproof rodent-resistant cable material, its raw material：40 parts of Corvic, poly- four
20 parts of PVF, 3 parts of epoxyoleic acid butyl ester, compound 25 parts of phosphorus flame retardant, hydrophobic particles 5,2 parts of accelerator, 2 parts of expelling mouse agent,
5 parts of auxiliary agent；
Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E；Expelling mouse agent be with galapectite with
Matrix, addition rat destruction component is made.
Embodiment 2
A kind of family's optical fiber is included by weight with moistureproof rodent-resistant cable material, its raw material：60 parts of Corvic, poly- four
15 parts of PVF, 5 parts of epoxyoleic acid butyl ester, compound 20 parts of phosphorus flame retardant, 17 points of hydrophobic particles, 1.5 parts of accelerator, expelling mouse agent
3 parts, 3 parts of auxiliary agent；
Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E, fiber powder, poly dimethyl silicon
The weight ratio of oxygen alkane and Tissuemat E is 5：2：8；Fiber powder is wood powder and the mixture of bamboo charcoal powder；Expelling mouse agent with galapectite with
Matrix, adds a variety of rat destruction components and is made, and rat destruction component includes bamboo vinegar, glutathione and chitosan, galapectite and rat destruction group
The weight ratio divided is 10：6；Compound phosphorus flame retardant is RDP fire retardants and BDP fire retardants；Accelerator is thuriam acceserator；
Auxiliary agent is ultraviolet light absorbent, lubricant, stabilizer and antioxidant；
The preparation process of expelling mouse agent includes：1) bamboo vinegar, glutathione, chitosan is weighed by proportioning to be mixed
Compound；2) added water stirring after galapectite is calcined, and is warming up to 85 DEG C, adds concentrated sulfuric acid acidifying, and filtration washing, drying grinding is obtained
Porous galapectite powder；3) porous galapectite powder is added in mixture, be well mixed under ultrasound condition, drying is driven
Mouse agent.
Embodiment 3
A kind of family's optical fiber is included by weight with moistureproof rodent-resistant cable material, its raw material：80 parts of Corvic, poly- four
10 parts of PVF, 8 parts of epoxyoleic acid butyl ester, compound 10 parts of phosphorus flame retardant, 20 points of hydrophobic particles, 1 part of accelerator, expelling mouse agent 4
Part, 1 part of auxiliary agent；
Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E, fiber powder, poly dimethyl silicon
The weight ratio of oxygen alkane and Tissuemat E is 4：3：6；Fiber powder is a mixture of wood powder, bamboo charcoal powder and powder of straw；Expelling mouse agent
With galapectite with matrix, add a variety of rat destruction components and be made, rat destruction component includes bamboo vinegar, glutathione and chitosan, bamboo vinegar
The weight ratio of liquid, glutathione and chitosan is 10：2：6, the weight ratio of galapectite and rat destruction component is 10：4；Compound phosphorus system resistance
Combustion agent is RDX fire retardants；Accelerator is thiazole accelerator；Auxiliary agent is ultraviolet light absorbent, lubricant, stabilizer and antioxygen
Agent；
The preparation process of expelling mouse agent includes：1) bamboo vinegar, glutathione, chitosan is weighed by proportioning to be mixed
Compound；2) added water stirring after galapectite is calcined, and is warming up to 70 DEG C, adds concentrated sulfuric acid acidifying, and filtration washing, drying grinding is obtained
Porous galapectite powder；3) porous galapectite powder is added in mixture, the ultrasonic mixing under the conditions of power is 5000Hz
30min, drying obtains expelling mouse agent.
Embodiment 4
A kind of family's optical fiber is included by weight with moistureproof rodent-resistant cable material, its raw material：60 parts of Corvic, poly- four
18 parts of PVF, 5 parts of epoxyoleic acid butyl ester, compound 18 parts of phosphorus flame retardant, 15 points of hydrophobic particles, 1.5 parts of accelerator, expelling mouse agent
3 parts, 3 parts of auxiliary agent；
Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E, fiber powder, poly dimethyl silicon
The weight ratio of oxygen alkane and Tissuemat E is 4.5：2.5：7；Fiber powder is a mixture of wood powder, bamboo charcoal powder and powder of straw；Drive
Mouse agent, with matrix, is added a variety of rat destruction components and is made, rat destruction component includes bamboo vinegar, glutathione and chitosan with galapectite,
The weight ratio of bamboo vinegar, glutathione and chitosan is 10：3：4, the weight ratio of galapectite and rat destruction component is 10：5；Compound phosphorus
Flame retardant is RDX fire retardants；Accelerator is thiazole accelerator；Auxiliary agent be ultraviolet light absorbent, lubricant, stabilizer and
Antioxidant；
The preparation process of expelling mouse agent includes：1) bamboo vinegar, glutathione, chitosan is weighed by proportioning to be mixed
Compound；2) added water stirring after galapectite is calcined, and is warming up to 80 DEG C, adds concentrated sulfuric acid acidifying, and filtration washing, drying grinding is obtained
Porous galapectite powder；3) porous galapectite powder is added in mixture, the ultrasonic mixing under the conditions of power is 7000Hz
20min, drying obtains expelling mouse agent at 60 DEG C.
Reference examples
A kind of CABLE MATERIALS, its raw material includes by weight：60 parts of Corvic, 18 parts of polytetrafluoroethylene (PTFE), Epoxy oil
5 parts of acid butyl ester, compound 18 parts of phosphorus flame retardant, 1.5 parts of accelerator, 3 parts of expelling mouse agent, 3 parts of auxiliary agent；
Wherein, expelling mouse agent adds a variety of rat destruction components and is made, rat destruction component includes bamboo vinegar, paddy with galapectite with matrix
The sweet peptide of Guang and chitosan, the weight ratio of bamboo vinegar, glutathione and chitosan is 10：3：4, the weight of galapectite and rat destruction component
Than for 10：5；Compound phosphorus flame retardant is RDX fire retardants；Accelerator is thiazole accelerator；Auxiliary agent be ultraviolet light absorbent,
Lubricant, stabilizer and antioxidant；
The preparation process of expelling mouse agent includes：1) bamboo vinegar, glutathione, chitosan is weighed by proportioning to be mixed
Compound；2) added water stirring after galapectite is calcined, and is warming up to 80 DEG C, adds concentrated sulfuric acid acidifying, and filtration washing, drying grinding is obtained
Porous galapectite powder；3) porous galapectite powder is added in mixture, the ultrasonic mixing under the conditions of power is 7000Hz
20min, drying obtains expelling mouse agent at 60 DEG C.
By family's optical fiber made from embodiment 3 and 4 moistureproof rodent-resistant cable material and CABLE MATERIALS progressive made from reference examples
It can test, test result is as shown in the table：
| Performance parameter | Embodiment 3 | Embodiment 4 | Reference examples |
| Tensile strength/MPa | 15.3 | 14.9 | 14.1 |
| Elongation at break/% | 230 | 251 | 216 |
| Oxygen index (OI)/% | 38.2 | 39.1 | 32.6 |
| The plague of rats (30 days) | Nothing | Nothing | Have |
| Water percolating capacity/(ml/m) | 59 | 63 | 89 |
From test data as can be seen that the present invention has excellent mechanical property and anti-flammability, while can avoid very well
The water resistance of the plague of rats and cable, meets actual operation requirements.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (10)
1. a kind of family's optical fiber protection against the tide rodent-resistant cable material, it is characterised in that its raw material includes by weight：Corvic
40-80 parts, 10-20 parts of polytetrafluoroethylene (PTFE), 3-8 parts of epoxyoleic acid butyl ester, compound 10-25 parts of phosphorus flame retardant, hydrophobic particles 5-
20 points, 1-2 parts of accelerator, 2-4 parts of expelling mouse agent, 1-5 parts of auxiliary agent；
Wherein, hydrophobic particles are made by fiber powder, dimethyl silicone polymer and Tissuemat E；Expelling mouse agent is with base with galapectite
Body, addition rat destruction component is made.
2. family's optical fiber according to claim 1 is with moistureproof rodent-resistant cable material, it is characterised in that fiber powder be wood powder,
One or both of bamboo charcoal powder, powder of straw thing mixed above.
3. family's optical fiber according to claim 1 protection against the tide rodent-resistant cable material, it is characterised in that fiber in hydrophobic particles
The weight ratio of powder, dimethyl silicone polymer and Tissuemat E is 4-5：2-3：6-8.
4. family's optical fiber protection against the tide rodent-resistant cable material according to claim any one of 1-3, it is characterised in that hydrophobic particles
Preparation process include：Tissuemat E is heated and melted, fiber powder is added and dimethyl silicone polymer mixing granulation obtains hydrophobic
Particle.
5. family's optical fiber protection against the tide rodent-resistant cable material according to claim any one of 1-3, it is characterised in that rat destruction component
Including bamboo vinegar, glutathione and chitosan；Preferably, the weight ratio of bamboo vinegar, glutathione and chitosan is 10：2-3：4-
6。
6. family optical fiber according to claim any one of 1-3 is with moistureproof rodent-resistant cable material, it is characterised in that galapectite with
The weight ratio of rat destruction component is 10：4-6.
7. family's optical fiber protection against the tide rodent-resistant cable material according to claim any one of 1-3, it is characterised in that expelling mouse agent
Preparation process includes：1) weigh that bamboo vinegar, glutathione, chitosan are well mixed to obtain mixture by proportioning；2) by galapectite
Add water stirring after calcining, is warming up to 70-85 DEG C, adds concentrated sulfuric acid acidifying, and filtration washing, drying grinding obtains porous galapectite powder
Body；3) porous galapectite powder is added in mixture, be well mixed under ultrasound condition, drying obtains expelling mouse agent.
8. family's optical fiber protection against the tide rodent-resistant cable material according to claim any one of 1-3, it is characterised in that compound phosphorus system
Fire retardant is one or both of RDX fire retardants, TPP fire retardants, RDP fire retardants and BDP fire retardants thing mixed above.
9. family optical fiber according to claim any one of 1-3 is with moistureproof rodent-resistant cable material, it is characterised in that accelerator is
The one or more kinds of mixtures of thiazole accelerator, thuriam acceserator, Thiourea accelerator.
10. family optical fiber according to claim any one of 1-3 is with moistureproof rodent-resistant cable material, it is characterised in that auxiliary agent is
One or both of ultraviolet light absorbent, lubricant, stabilizer, antioxidant thing mixed above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326609.1A CN107254113A (en) | 2017-05-10 | 2017-05-10 | A kind of family's optical fiber protection against the tide rodent-resistant cable material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326609.1A CN107254113A (en) | 2017-05-10 | 2017-05-10 | A kind of family's optical fiber protection against the tide rodent-resistant cable material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107254113A true CN107254113A (en) | 2017-10-17 |
Family
ID=60027364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326609.1A Pending CN107254113A (en) | 2017-05-10 | 2017-05-10 | A kind of family's optical fiber protection against the tide rodent-resistant cable material |
Country Status (1)
| Country | Link |
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| CN (1) | CN107254113A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103665623A (en) * | 2012-09-10 | 2014-03-26 | 苏州德亮材料科技有限公司 | Rat-proof polyvinyl chloride (PVC) cable material and preparation method thereof |
| CN106349593A (en) * | 2016-08-24 | 2017-01-25 | 付竹兰 | Manufacturing method of rat-proof polyvinyl chloride cable material |
-
2017
- 2017-05-10 CN CN201710326609.1A patent/CN107254113A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103665623A (en) * | 2012-09-10 | 2014-03-26 | 苏州德亮材料科技有限公司 | Rat-proof polyvinyl chloride (PVC) cable material and preparation method thereof |
| CN106349593A (en) * | 2016-08-24 | 2017-01-25 | 付竹兰 | Manufacturing method of rat-proof polyvinyl chloride cable material |
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Application publication date: 20171017 |
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