CN100449347C - Aramid fiber reinforced plastic reinforcement, and its preparing process and use - Google Patents
Aramid fiber reinforced plastic reinforcement, and its preparing process and use Download PDFInfo
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- CN100449347C CN100449347C CNB200710042215XA CN200710042215A CN100449347C CN 100449347 C CN100449347 C CN 100449347C CN B200710042215X A CNB200710042215X A CN B200710042215XA CN 200710042215 A CN200710042215 A CN 200710042215A CN 100449347 C CN100449347 C CN 100449347C
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Abstract
A strengthening of aramid fiber reinforced plastic pieces. Composed by the line of aramid fiber reinforced plastics and outer coating, coating is 0.02-0.10 mm thick, the strengthening is 0.5-0.8 mm diameter. Minimum bend radius is less than the six times of their diameter. Process: use O2 plasma modified aramid yarn; enter solution slot, vinyl resin impregnation; enter the mold, mold, heating and molding completely cured, a system of aramid fiber-reinforced plastics; fibre reinforced plastics for preheating; preheating entered extrusion mold, coating; coating after rapid cooling system in the aramid fiber reinforced plastics strengthening of which, coating materials for ethylene acrylic acid copolymer. Advantages are: small compact size, flexible, and tensile performance, a waterproof coating function, and the strengthening of the overall cable closely integrated with the dimensional stability, organization dense and have a certain rigidity, resistance to a rope in the process of heat shrink to help reduce fiber attenuation.
Description
Technical field
The present invention relates to a kind of aramid fiber reinforced plastic reinforcement and preparation technology thereof and purposes, aramid fiber reinforced plastic reinforcement belongs to non-metal reinforcement member, is particularly useful for full medium inside cable.
Background technology
People have entered the information age at present, and along with the continuous quickening of China's information highway pace of construction and building up in succession of Eight Verticals and Eight Horizontals fiber optic network, people are growing to the demand of communication bandwidth.Fiber to the home (FTTH) become Communication in China information development inexorable trend and extremely people pay close attention to.In the near future, the requisite communications carrier that develops as following all-optical network---inside cable will substitute the copper cabling of restriction Communication in China information development at present fully.
Inside cable is mainly used in indoor environment because of it, so require inside cable simple in structure, thin crucial also will have certain tensile strength and soft, and narrow and small in the space to be suitable for optical cable, bending diameter is less, flexible wiring under the more situation of bending point.For this reason, as structural member indispensable in the optical cable---anti-open an element should to have size tiny, light and soft, tensile strength, tensile modulus height, characteristic such as breaking elongation is low.
Present nearly all inside cable all is to adopt the aramid fiber raw yarn as reinforcement, thisly has following shortcoming with aramid yarn as reinforcement: 1, aramid yarn is in loose condition (of surface), and tensile strength can't obtain performance to greatest extent and utilize; 2, aramid yarn one of often unlikely use and need multi-filament Shu Jinhang doubling in the stranding process for the tension force that makes many aramid fiber tow keeps uniformity, need be controlled the tension force of tow, and this just needs to increase specialized equipment and control technology; 3, aramid yarn often is distributed in around the optical fiber, is difficult for realizing pancake cable configuration; 4, aramid yarn is difficult for combining closely with cable outer sheath.Owing to the existence of these problems, restricted the development process of China's flat abnormity inside cable.
Summary of the invention
The object of the present invention is to provide a kind of external diameter tiny, the aramid fiber reinforced plastic reinforcement that pliability is splendid.
Another object of the present invention is to provide a kind of preparation technology of above-mentioned aramid fiber reinforced plastic reinforcement, with the aramid fiber yarn is reinforcing material, with the vinylite is matrix material, adopt continuous pultrusion molding process to be composited, it is tiny to make size, light and soft, the aramid fiber reinforced plastic reinforcement that tensile strength is high.
A further object of the present invention is to provide a kind of purposes of above-mentioned aramid fiber reinforced plastic reinforcement.
The invention provides a kind of aramid fiber reinforced plastic reinforcement, described aramid fiber reinforced plastic reinforcement is made of wire plastics and the outer coating that aramid fiber strengthens, wherein, coating thickness is 0.02～0.10mm, the reinforcement external diameter is 0.5～0.8mm, and its minimum bending radius is not more than 6 times of self diameter.
The preferred 0.6mm of the external diameter of described aramid fiber reinforced plastic reinforcement, the preferred 0.05mm of coating thickness.
The invention provides a kind of preparation technology of above-mentioned aramid fiber reinforced plastic reinforcement, is reinforcing material with the aramid fiber yarn, is the continuous pultrusion molding process of matrix material with the vinylite:
The first step: use O
2Plasma carries out modification to the aramid fiber yarn to be handled;
Second step: enter solution tank, the dipping vinylite;
The 3rd step: enter mould, at in-mold molding and be heating and curing fully, make aramid fiber and increase
Strong plastics;
The 4th step: fibre reinforced plastics are carried out preheating;
The 5th step: enter extrusion die after the preheating, apply;
The 6th step: apply back cooling fast, make aramid fiber reinforced plastic reinforcement;
Wherein, coating material is an ethylene acrylic acid co polymer.
On the basis of such scheme, described mould is the split mould, and the effective length of its working chamber is not less than 600mm.Mould is a pultrusion die, adopts existing reparation and the maintenance that is beneficial to mould of split mould, and the wearing face that also helps die-face is handled.And because pultrusion product diameter only has 0.5mm, belong to ultra-fine specification, the product of in the past producing this ultra-fine specification adopts wortle (also useful extrusion die), be unitary mould, the sizing size of this mould is very short, can only accomplish that about half of aperture, mould just plays the moulding effect, the curing of its material will lean on follow-up curing oven to realize, so the dimensional stability of product and surface quality are not ideal.And the pultrusion die that the present invention adopts, its mold work cavity length can reach more than the 600mm, and in conjunction with pultrude process, guarantees that product in moulding, can directly fully be solidified in mould.The product size that pultrusion makes is stable, dense structure, smooth surface.
The curing haulage speed is 5～8m/min, and the coating haulage speed is 420～480m/min, solidifies the preferred 6m/min of haulage speed, applies the preferred 450m/min of haulage speed.
Described vinylite is the epoxy vinyl resin through the toluene diisocyanate modification.
The invention provides a kind of purposes of above-mentioned aramid fiber reinforced plastic reinforcement, be used for the enhancing of inside cable.
At the purposes of aramid fiber reinforced plastic reinforcement, be further used for the enhancing of pancake inside cable, this aramid fiber reinforced plastic reinforcement is arranged at the both sides of optical fiber, is overmolding to the pancake product by cable outer sheath.
The invention has the beneficial effects as follows:
1, aramid fiber reinforced plastic reinforcement compact conformation of the present invention, size is tiny, and diameter only is 0.6mm;
2, aramid fiber reinforced plastic reinforcement density of the present invention is low, and pliability is good, and minimum bending radius is R 3.5mm only, is not more than 6 times of self diameter;
3, aramid fiber reinforced plastic reinforcement tensile property excellence of the present invention, tensile strength can reach 1800Mpa, still can keep the tensile strength of 1300Mpa after the fracture;
4, the thick ethylene acrylic acid co polymer of aramid fiber reinforced plastic reinforcement outside coating one deck 0.05mm of the present invention, this layer coating can not only play water-proof function, and reinforcement and optical cable integral body are combined closely.
5, aramid fiber reinforced plastic reinforcement of the present invention adopts pultrusion molding process, and the pultrusion die effective length reaches 600mm, can guarantee that product is fully solidified in mould, need not follow-up solidification equipment;
6, aramid fiber reinforced plastic reinforcement of the present invention is because of directly solidifying in mould, so product size is stablized dense structure, smooth surface;
7, aramid fiber reinforced plastic reinforcement of the present invention coating ethylene acrylic copolymer coating can directly be used during stranding, need not to mould;
During 8, with aramid fiber reinforced plastic reinforcement stranding of the present invention, Tension Control is come easily far beyond the aramid fiber yarn, no doubling link;
9, aramid fiber reinforced plastic reinforcement of the present invention has certain rigidity than the aramid fiber yarn, can resist the thermal shrinkage in the stranding process, helps to reduce the decay of optical fiber.
Description of drawings
Accompanying drawing strengthens the structural representation of optical cable for aramid fiber reinforced plastic reinforcement of the present invention.
Label declaration in the accompanying drawing
1-optical fiber 2-aramid fiber reinforced plastic reinforcement
The 3-cable outer sheath
Embodiment
A kind of preparation technology of aramid fiber reinforced plastic reinforcement adopts pultrusion molding process, and its preparation technology is:
The first step: use O
2Plasma carries out modification to the aramid fiber yarn to be handled, and equipment is the atmospheric low-temperature plasma treating apparatus, and power frequency is 15KHz-20KHz, and voltage is 3KV, and gas flow is 2L/min;
Second step: enter solution tank, the dipping vinylite;
The 3rd step: enter mould, at in-mold molding and be heating and curing fully, make aromatic polyamide fiber reinforced plastics, mould slaking regional temperature is 200 ℃, and the typing regional temperature is 140 ℃, and the curing haulage speed is 6m/min;
The 4th step: fibre reinforced plastics are carried out preheating, and preheat temperature is 320 ℃;
The 5th step: enter extrusion die after the preheating, apply, the coating haulage speed is 450m/min;
The 6th step: apply back cooling fast, make aramid fiber reinforced plastic reinforcement, coolant water temperature is 14 ℃.
Used starting material: aramid yarn is DuPont Kevlar 29:DTEX1670-100-R80-964; Impregnating resin is a vinylite, and this vinylite is the epoxy vinyl resin through the toluene diisocyanate modification, and its performance index are: solids content 62%; Viscosity 300cpas; Acid number 8.1mg KOH/g; Coated with resins is an ethylene acrylic acid co polymer.
Described mould is the split mould, and the effective length of its working chamber is 600mm,
With the aramid fiber reinforced plastic reinforcement that said method prepares, external diameter is 0.6mm, and coating thickness is 0.05mm, and its minimum bending radius is R 3.5mm, less than 6 times of self diameter.
Aramid fiber reinforced plastic reinforcement test data table
| The external diameter of band coating (mm) | 0.605 |
| The external diameter of band coating (mm) not | 0.495 |
| Unit weight (g/m) | 0.348 |
| Crushing load (N) | 360 |
| Tensile strength (MPa) | 1834 (are the cross section with Φ 0.5) |
| Tensile modulus (GPa) | 52 (are the cross section with Φ 0.5) |
| Breaking elongation (%) | 2.49 |
| Minimum bending radius (mm) | 3.5 |
| Hot bend test | Under 80 ℃, 24 hours, Φ 30mm condition, do not rupture |
The above-mentioned aramid fiber reinforced plastic reinforcement that makes is used for the enhancing of pancake inside cable, see also shown in the structural representation that accompanying drawing aramid fiber reinforced plastic reinforcement of the present invention strengthens optical cable, this aramid fiber reinforced plastic reinforcement 2 is arranged at the both sides of optical fiber 1, is overmolding to the pancake product by cable outer sheath 3.
Claims (7)
1, a kind of preparation technology of aramid fiber reinforced plastic reinforcement adopts pultrusion molding process, and its preparation technology is:
The first step: use O
2Plasma carries out modification to the aramid fiber yarn to be handled;
Second step: enter solution tank, the dipping vinylite;
The 3rd step: enter mould, at in-mold molding and be heating and curing fully, make aromatic polyamide fiber reinforced plastics;
The 4th step: fibre reinforced plastics are carried out preheating;
The 5th step: enter extrusion die after the preheating, apply;
The 6th step: apply back cooling fast, make aramid fiber reinforced plastic reinforcement;
Wherein, coating material is an ethylene acrylic acid co polymer.
2, the preparation technology of aramid fiber reinforced plastic reinforcement according to claim 1 is characterized in that: described mould is the split mould, and the effective length of its working chamber is not less than 600mm.
3, the preparation technology of aramid fiber reinforced plastic reinforcement according to claim 1 and 2 is characterized in that: the curing haulage speed is 5～8m/min, and the coating haulage speed is 420～480m/min.
4, the preparation technology of aramid fiber reinforced plastic reinforcement according to claim 1 and 2 is characterized in that: described vinylite is the epoxy vinyl resin through the toluene diisocyanate modification.
5, a kind of preparation technology's at the described aramid fiber reinforced plastic reinforcement of claim 1 product, it is characterized in that: described aramid fiber reinforced plastic reinforcement is made of wire plastics and the outer coating that aramid fiber strengthens, wherein, coating thickness is 0.02～0.10mm, the reinforcement external diameter is 0.5～0.8mm, and its minimum bending radius is not more than 6 times of self diameter.
6, a kind of purposes at the described product of claim 5 is used for the enhancing of inside cable.
7, the purposes of product according to claim 6 is characterized in that: being used for the cross section is the pancake inside cable, and this aramid fiber reinforced plastic reinforcement is arranged at the both sides of optical fiber, is overmolding to the pancake product by cable outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNB200710042215XA CN100449347C (en) | 2007-06-19 | 2007-06-19 | Aramid fiber reinforced plastic reinforcement, and its preparing process and use |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710042215XA CN100449347C (en) | 2007-06-19 | 2007-06-19 | Aramid fiber reinforced plastic reinforcement, and its preparing process and use |
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| CN101071191A CN101071191A (en) | 2007-11-14 |
| CN100449347C true CN100449347C (en) | 2009-01-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629022B (en) * | 2009-08-14 | 2011-07-13 | 东北林业大学 | Aramid fiber enhanced wood-plastic composite material and preparation method thereof |
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|---|---|---|---|---|
| MX2011004384A (en) * | 2008-10-28 | 2011-07-28 | Adc Telecommunications Inc | Flat drop cable. |
| CN101923199B (en) * | 2010-08-20 | 2012-06-13 | 烽火通信科技股份有限公司 | Method for preparing integrated optical cable of fibre reinforced plastic reinforcement and optical cable |
| CN102002836A (en) * | 2010-11-10 | 2011-04-06 | 哈尔滨工业大学 | Method for enhancing permeability of prepregs |
| CN102692686B (en) * | 2012-05-23 | 2013-12-18 | 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 |
| CN103278900A (en) * | 2013-06-07 | 2013-09-04 | 南通和泰通讯器材有限公司 | Aramid fiber reinforced core post-processing technology |
| CN103792634B (en) * | 2014-01-23 | 2016-09-28 | 海安南京大学高新技术研究院 | A kind of aramid fiber reinforced composite optical cable containing flexible coat strengthens core and preparation method thereof |
| CN105022129A (en) * | 2015-06-25 | 2015-11-04 | 浙江中天电线电缆有限公司 | Anti-electric arc nonmetallic leading-in optic cable |
| CN109243718B (en) * | 2018-09-21 | 2020-06-16 | 上海晓宝增强塑料有限公司 | Production method of non-metal armor wires |
| CN109387912A (en) * | 2018-09-21 | 2019-02-26 | 上海晓宝增强塑料有限公司 | A kind of non-metallic sheath silk |
| CN112731603B (en) * | 2020-12-23 | 2022-12-27 | 华为技术有限公司 | Optical cable |
| CN112596180A (en) * | 2020-12-23 | 2021-04-02 | 江苏永鼎股份有限公司 | Production process and equipment for reinforcing piece continuous coating continuous extrusion butterfly cable and butterfly cable |
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| US20050238299A1 (en) * | 2004-03-29 | 2005-10-27 | Hitachi Cable, Ltd. | Optical fiber cable |
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| US20010048796A1 (en) * | 2000-02-18 | 2001-12-06 | Anton Ludl | Optical flat cable |
| CN1536382A (en) * | 2003-04-03 | 2004-10-13 | ס�ѵ�����ҵ��ʽ���� | Method for making optical cable |
| CN1882863A (en) * | 2003-11-14 | 2006-12-20 | 宇部日东化成株式会社 | Drop optical fiber cable and FRP tension member used for the cable |
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| CN101629022B (en) * | 2009-08-14 | 2011-07-13 | 东北林业大学 | Aramid fiber enhanced wood-plastic composite material and preparation method thereof |
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| CN101071191A (en) | 2007-11-14 |
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Denomination of invention: Aramid fiber reinforced plastic reinforcement, and its preparing process and use Effective date of registration: 20120914 Granted publication date: 20090107 Pledgee: Pudong Development Bank of Nanhui Shanghai branch Pledgor: Shanghai Xiaobao Reinforced Plastics Co., Ltd. Registration number: 2012990000529 |
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Effective date of registration: 20201225 Address after: 224199 No.9 Hongbao Road, Dafeng District, Yancheng City, Jiangsu Province Patentee after: JIANGSU XIAOBAO COMPOSITE MATERIALS Co.,Ltd. Address before: 201324, Nanhui District, Shanghai, Sichuan Southern Highway No. 5898 Patentee before: SHANGHAI XIAOBAO REINFORCED PLASTICS Co.,Ltd. |
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