CN114571752A - Carbon fiber optical cable reinforced core and manufacturing method thereof - Google Patents
Carbon fiber optical cable reinforced core and manufacturing method thereof Download PDFInfo
- Publication number
- CN114571752A CN114571752A CN202210258314.6A CN202210258314A CN114571752A CN 114571752 A CN114571752 A CN 114571752A CN 202210258314 A CN202210258314 A CN 202210258314A CN 114571752 A CN114571752 A CN 114571752A
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- Prior art keywords
- carbon fiber
- layer
- epoxy resin
- rope
- optical cable
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Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 94
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 94
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 230000003287 optical effect Effects 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 239000003822 epoxy resin Substances 0.000 claims abstract description 58
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 58
- 239000010410 layer Substances 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims abstract description 10
- 239000011247 coating layer Substances 0.000 claims abstract description 3
- 239000013307 optical fiber Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 7
- 239000003365 glass fiber Substances 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004593 Epoxy Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000003292 glue Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 3
- 238000005253 cladding Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 229920006226 ethylene-acrylic acid Polymers 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
Abstract
The invention relates to a carbon fiber optical cable reinforcing core and a manufacturing method thereof.A plurality of carbon fiber wires are immersed in a modified epoxy resin liquid tank under the premise of tensioning by a rope rolling machine and are twisted into a carbon fiber wire rope, and the carbon fiber wire rope dipped and coated with modified epoxy resin is dried by an inner aperture hole forming die to form a rigid epoxy resin carbon fiber wire rope; 2) the surface of the rigid epoxy resin carbon fiber wire rope is coated and dried by the modified EAA layer or the PE layer to form the double-layer optical cable reinforcing core. The advantages are that: the defects of hardness, brittleness and poor toughness of the optical cable reinforced core are fundamentally overcome, and the tensile strength of the optical cable reinforced core is improved; secondly, the core wire in the optical cable reinforced core is designed to be in a rope-shaped structure, so that the tensile strength of the core wire is enhanced by multiple times, and the consumption of carbon fiber wires is reduced by more than 35%; and thirdly, the modified EAA layer or the PE layer is used as a coating layer of the optical cable reinforced core, so that the optical fiber lines around the optical cable reinforced core are protected, and the phenomenon of hard touch between the modified EAA layer and the PE layer is avoided.
Description
Technical Field
The invention relates to a carbon fiber optical cable reinforced core which has high tensile strength and small elongation percentage and can avoid damage to an optical cable and a manufacturing method thereof, belonging to the field of optical cable reinforced core manufacturing.
Background
CN109749218B, entitled glass fiber optical cable reinforced core, which comprises glass fibers and glue solution coated on the glass fibers, wherein the glue solution is prepared from the following raw materials in percentage by mass: 50-53% of EEA, 38-40% of EVA, 5% of silane coupling agent, 1% of curing stiffening agent and the balance of release agent; the silane coupling agent is silane containing organic functional groups of ethylene, acrylic acid or amine groups; the preparation method of the glass fiber optical cable reinforced core comprises the following steps: step 1, pouring EEA, EVA, a silane coupling agent, a curing stiffening agent and a release agent into a high-temperature melting box to melt to obtain glue solution; step 2, adding the glue solution into a first coating mold and a second coating mold, and controlling the temperature at 240-260 ℃; step 3, extruding the glass fiber from the inlet of the first coating die, drawing the glass fiber from the outlet end after coating, and drying the glass fiber; step 4, winding the dried semi-finished product at a winding speed of 4 m/min; step 5, extruding the semi-finished product from an inlet of a second coating die, drawing out the semi-finished product from an outlet end after soaking, and drying the semi-finished product; and 6, winding the finished product at the winding speed of 10 m/min. The method has the following defects: firstly, the aramid fiber is only used as a reinforcing rib with ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance and light weight, and the cost of the manufactured optical cable reinforcing core is high under the condition of the same price; secondly, the manufactured optical cable reinforced core is hard, brittle and poor in plasticity, and is easy to break in the using process, so that the optical cable is damaged.
Disclosure of Invention
The design purpose is as follows: the defects in the background art are avoided, and the carbon fiber optical cable reinforced core which has high tensile strength and small elongation rate and can avoid damage to optical cables and the manufacturing method are designed.
The design scheme is as follows: the design purpose is realized. The invention has the structural design that: 1. the design that a plurality of carbon fiber wires are tensioned and woven into a carbon fiber wire rope in modified epoxy resin liquid and then cured is one of the technical characteristics of the invention. The purpose of this design is: the carbon fiber yarn made of the special fiber has the characteristics of high temperature resistance, friction resistance, electric conduction resistance, heat conduction resistance, corrosion resistance and the like, and has high strength and modulus along the fiber axis direction because the graphite microcrystal structure is preferentially oriented along the fiber axis. The carbon fiber has low density, high specific strength and high specific modulus, is an excellent reinforcing material, and is a carbon fiber reinforced epoxy resin composite material, the specific strength and the specific modulus of the cable are the highest in the existing engineering materials, and if the cable is used as a reinforcing rib of a reinforced core of the optical cable independently, the requirement is large, the invention weaves a plurality of carbon fiber wires into the rope under the condition of tension, thereby not only improving the tensile strength by times, but also can reduce the elongation of the carbon fiber rope to the minimum, and simultaneously, because a plurality of carbon fiber threads are strongly pulled (in a tensioning state) after being immersed in the modified epoxy resin liquid and are woven and formed by a rope twisting machine, therefore, the rigidity of the formed modified epoxy resin fiber rope is improved by more than several times, the toughness is also improved, more importantly, the elongation is reduced to be approximately zero and far exceeds the required tensile strength of the optical cable, and the safety of the optical cable in use is ensured. 2. The design that the cured modified epoxy resin carbon fiber rope is coated by the modified EAA or PE is the second technical characteristic of the invention. The purpose of this design is: the ethylene-acrylic acid copolymer is a material with thermoplasticity and extremely high cohesiveness, forms firm adhesion with the modified epoxy resin, has good toughness and can play a good role in protecting the coated optical fiber wire.
The technical scheme 1: the utility model provides a core is strengthened to carbon fiber optical cable, strengthens the core including the optical cable, the heart yearn in the core is many carbon fiber silk, many carbon fiber silk stretch-draw and in modified epoxy liquid be woven into carbon fiber silk rope postcure, modified epoxy carbon fiber silk rope after the solidification is by modified EAA cladding or by PE cladding.
The technical scheme 2 is as follows: a method for manufacturing a carbon fiber optical cable reinforcing core comprises the following steps of 1) immersing a plurality of carbon fiber wires in a modified epoxy resin liquid tank under the premise of tensioning by a rope rolling machine, and rolling into a carbon fiber rope, and drying the carbon fiber rope dipped and coated with modified epoxy resin through an inner aperture hole forming die to form a rigid epoxy resin carbon fiber rope; 2) the surface of the rigid epoxy resin carbon fiber wire rope is coated and dried by the modified EAA layer or the PE layer to form the double-layer optical cable reinforcing core.
The technical scheme 3 is as follows: a method for manufacturing a carbon fiber optical cable reinforcing core comprises the following steps of 1) immersing a plurality of carbon fiber wires in a modified epoxy resin liquid tank under the premise of tensioning by a rope rolling machine, and rolling into a carbon fiber rope, and drying the carbon fiber rope dipped and coated with modified epoxy resin through an inner aperture hole forming die to form a rigid epoxy resin carbon fiber rope; 2) the surface of the rigid epoxy resin carbon fiber rope is coated by the modified epoxy resin layer again to form a single-property double-layer epoxy resin carbon fiber rope; 3) the single double-layer epoxy resin carbon fiber rope surface is coated and dried by the modified EAA layer or the PE layer to form the double three-layer optical cable reinforced core.
Compared with the background technology, the invention fundamentally solves the defects of hard, crisp and poor toughness of the optical cable reinforced core, improves the tensile strength of the optical cable reinforced core and ensures the application safety of the optical cable; secondly, the core wire in the optical cable reinforced core is designed to be in a rope-shaped structure, so that the elongation of the optical cable reinforced core is reduced, the tensile strength of the core wire is enhanced by multiple times, the consumption of carbon fiber wires is reduced by more than 35%, the manufacturing cost is reduced, and the diameter of the core wire is reduced; and thirdly, the modified EAA layer or the PE layer is used as a coating layer of the optical cable reinforced core, so that the tensile strength is improved, the core wire is prevented from being broken and embrittled in a strong pulling state, the optical fiber wires around the optical cable reinforced core wire are protected, and the phenomenon of hard-to-hard contact between the core wire and the optical cable reinforced core wire is avoided.
Drawings
FIG. 1 is a schematic view of a first end face structure of a carbon fiber cable reinforcing core.
Fig. 2 is a schematic diagram of a second end face structure of the carbon fiber cable reinforced core.
FIG. 3 is a first flow chart for manufacturing a carbon fiber cable reinforced core.
FIG. 4 is a second flow chart for manufacturing a carbon fiber cable core.
Detailed Description
Example 1: reference is made to figure 1. The utility model provides a core is strengthened to carbon fiber optical cable, strengthens the core including the optical cable, the heart yearn in the core is many carbon fiber silk, many carbon fiber silk stretch-draw and in modified epoxy liquid be woven into carbon fiber silk rope 1 postcure, modified epoxy carbon fiber silk rope 1 after the solidification is by modified EA layer cladding or by PE coating 3. The carbon fiber filaments in the cured modified epoxy resin carbon fiber rope 1 are bonded with the carbon fiber filaments into a whole by the modified epoxy resin 2. The hardness of the modified EAA layer or PE layer is less than that of the modified epoxy resin layer.
Example 2: reference is made to figure 2. In addition to example 1, the cured carbon fiber cord 1 is coated with a modified epoxy resin layer 4, and the modified epoxy resin layer is coated with a modified EAA layer or coated with a PE layer 4.
Modified epoxy resin: toughening with liquid carboxyl-terminated nitrile butadiene rubber (CTBN): the addition amount is 10.5% to 12.5%, wherein the acrylonitrile content of CTBN is 18% to 30%, and 30% of silicon dioxide is added to avoid the strength reduction after adding CTBN, and the preparation thereof is the prior art, and will not be described herein. The modified EAA layer or PE layer is prior art and will not be described here.
Example 3: reference is made to figure 3. A method for manufacturing a carbon fiber optical cable reinforcing core comprises the following steps of 1) immersing a plurality of carbon fiber yarns 01 in a modified epoxy resin liquid tank 02 under the premise of tensioning by a rope rolling machine 05, rolling into carbon fiber ropes, and drying the carbon fiber ropes dipped and coated with modified epoxy resin by an inner aperture eye forming die 03 and a drying tunnel 04 to form rigid epoxy resin carbon fiber ropes; 2) the surface of the rigid epoxy resin carbon fiber wire rope is coated and dried by the modified EAA liquid or the PE liquid 07 to form the double-layer optical cable reinforcing core 09. The modified EAA layer or the PE layer plays a role in protecting the optical fiber wires (lines) wrapped around the modified EAA layer or the PE layer, and the phenomenon that the optical fiber wires (lines) and the optical cable reinforcing core are hard to touch is avoided.
Example 4: reference is made to figure 4. On the basis of the embodiment 2, a plurality of carbon fiber yarns 01 are immersed in the modified epoxy resin liquid tank 02 under the premise of tensioning by the rope rolling machine 05 and are rolled into a carbon fiber rope, and the carbon fiber rope dip-coated with the modified epoxy resin is dried by the inner aperture eye forming die 03 and the drying tunnel 04 to form a rigid epoxy resin carbon fiber rope; 2) the surface of the rigid epoxy resin carbon fiber rope is coated by the modified epoxy resin liquid 06 in the modified epoxy resin liquid tank again to form a single-property double-layer epoxy resin carbon fiber rope; 3) the single double-layer epoxy resin carbon fiber rope surface is coated and dried by the modified EAA liquid or the modified PE liquid 07 in the modified EAA liquid or the PE liquid tank to form the double-layer optical cable reinforced core 08 which is used for manufacturing special optical cables.
Each carbon fiber yarn pay-off installation tension sensor goes into the thigh with the uniform force, and each thigh is laid line sensor uniform force and is gone into the rope, reaches that every carbon fiber yarn atress is even, plays the atress maximize.
Considering the rigidity of the epoxy resin material, the flexibility of the EAA material needs to be controlled by a natural shaping process for 48-72 hours.
It should be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (6)
1. The utility model provides a core is strengthened to carbon fiber cable, includes the optical cable and strengthens core, characterized by: the core wire in the optical cable reinforcing core is a plurality of carbon fiber wires, the carbon fiber wires are tensioned and woven into a carbon fiber wire rope (1) in modified epoxy resin liquid to be cured, and the cured modified epoxy resin carbon fiber wire rope (1) is coated by a modified EA layer or a PE coating layer (3).
2. The carbon fiber cable reinforced core according to claim 1, wherein: the cured carbon fiber wire rope (1) is coated by a modified epoxy resin layer (4), and the modified epoxy resin layer is coated by a modified EAA layer or a PE layer (4).
3. The carbon fiber cable reinforced core according to claim 1, wherein: the carbon fiber filaments in the cured modified epoxy resin carbon fiber rope (1) are bonded with the carbon fiber filaments into a whole by the modified epoxy resin (2).
4. The carbon fiber cable reinforced core according to claim 1, wherein: the hardness of the modified EAA layer or PE layer is less than that of the modified epoxy resin layer.
5. A manufacturing method of a carbon fiber optical cable reinforced core is characterized by comprising the following steps: 1) a plurality of carbon fiber threads are immersed in the modified epoxy resin liquid tank under the premise of tensioning by the rope rolling machine and are twisted into a carbon fiber rope, and the carbon fiber rope dipped with the modified epoxy resin is dried by an inner aperture hole forming die to form a rigid epoxy resin carbon fiber rope; 2) the surface of the rigid epoxy resin carbon fiber wire rope is coated and dried by the modified EAA layer or the PE layer to form the double-layer optical cable reinforcing core.
6. A manufacturing method of a carbon fiber optical cable reinforced core is characterized by comprising the following steps: 1) a plurality of carbon fiber threads are immersed in the modified epoxy resin liquid tank under the premise of tensioning by the rope rolling machine and are twisted into a carbon fiber rope, and the carbon fiber rope dipped with the modified epoxy resin is dried by an inner aperture hole forming die to form a rigid epoxy resin carbon fiber rope; 2) the surface of the rigid epoxy resin carbon fiber rope is coated by the modified epoxy resin layer again to form a single-property double-layer epoxy resin carbon fiber rope; 3) the single double-layer epoxy resin carbon fiber rope surface is coated and dried by the modified EAA layer or the PE layer to form the double three-layer optical cable reinforced core.
Priority Applications (1)
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CN202210258314.6A CN114571752A (en) | 2022-03-16 | 2022-03-16 | Carbon fiber optical cable reinforced core and manufacturing method thereof |
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CN202210258314.6A CN114571752A (en) | 2022-03-16 | 2022-03-16 | Carbon fiber optical cable reinforced core and manufacturing method thereof |
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CN202210258314.6A Pending CN114571752A (en) | 2022-03-16 | 2022-03-16 | Carbon fiber optical cable reinforced core and manufacturing method thereof |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102508345A (en) * | 2011-11-05 | 2012-06-20 | 河北华强科技开发有限公司 | Reinforced core of communication optical cable and manufacturing method as well as special device for manufacturing reinforced core |
JP2012136814A (en) * | 2010-12-10 | 2012-07-19 | Komatsu Seiren Co Ltd | String-like reinforced fiber composite |
CN102692686A (en) * | 2012-05-23 | 2012-09-26 | 四川航天拓鑫玄武岩实业有限公司 | Fiber reinforced plastic rod for optical cables and manufacturing method thereof |
CN202472071U (en) * | 2011-12-30 | 2012-10-03 | 上海裕荣光电科技有限公司 | Composite fiber reinforced core |
-
2022
- 2022-03-16 CN CN202210258314.6A patent/CN114571752A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012136814A (en) * | 2010-12-10 | 2012-07-19 | Komatsu Seiren Co Ltd | String-like reinforced fiber composite |
CN102508345A (en) * | 2011-11-05 | 2012-06-20 | 河北华强科技开发有限公司 | Reinforced core of communication optical cable and manufacturing method as well as special device for manufacturing reinforced core |
CN202472071U (en) * | 2011-12-30 | 2012-10-03 | 上海裕荣光电科技有限公司 | Composite fiber reinforced core |
CN102692686A (en) * | 2012-05-23 | 2012-09-26 | 四川航天拓鑫玄武岩实业有限公司 | Fiber reinforced plastic rod for optical cables and manufacturing method thereof |
Non-Patent Citations (2)
Title |
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意大利通信研究中心实验室: "光纤通信", 31 October 1987, 中国铁道出版社, pages: 428 - 432 * |
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