CN102560704A - One-step preparation method of aramid fibers for optical cable - Google Patents
One-step preparation method of aramid fibers for optical cable Download PDFInfo
- Publication number
- CN102560704A CN102560704A CN2011100000510A CN201110000051A CN102560704A CN 102560704 A CN102560704 A CN 102560704A CN 2011100000510 A CN2011100000510 A CN 2011100000510A CN 201110000051 A CN201110000051 A CN 201110000051A CN 102560704 A CN102560704 A CN 102560704A
- Authority
- CN
- China
- Prior art keywords
- shaping
- fiber
- optical cable
- aramid fiber
- fixating shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Artificial Filaments (AREA)
Abstract
The invention discloses a one-step preparation method of aramid fibers for an optical cable, comprising the steps of spinning, coagulating, alkali-washing, water-washing, drying and winding, wherein a drawing step is added between the coagulating step and the alkali-washing step; the drawing tension is 1-5g/d; a first shaping step and a second shaping step are added between the drying step and the winding step; in the first shaping step, a first shaping box is adopted to shape, wherein the shaping temperature is 220-350 DEG C and the shaping time is 4-10s; in the second shaping step, a second shaping box is adopted to shape, wherein the shaping temperature is 350-550 DEG C and the shaping time is 8-20s. The winding speed of the fibers is 200-600M/min. In the invention, fiber modulus can be improved by more than 35% while the fiber strength is basically unchanged.
Description
Technical field
The present invention relates to optical cable and use fiber preparation method, particularly optical cable is used the aramid fiber one-step preppn process.
Background technology
The aramid fiber full name is " PPTA ", and is English for Aramid fiber is a kind of novel high-tech synthetic fiber, has superhigh intensity, high-modulus and high temperature resistant, acid-fast alkali-proof, premium properties such as in light weight.And have good insulation performance property and an ageing resistace, very long life cycle.The discovery of aramid fiber is considered to very important historical progress of material circle.
The most outstanding performance of p-aramid fiber is its high strength, high-modulus and outstanding heat resistance.Simultaneously, it also has appropriate toughness and can supply weaving processing.Experience 100hr down at 200 ℃, still can keep 75% of former intensity, experience 500hr down, still can keep 95% of former intensity at 160 ℃.In view of the above, p-aramid fiber is used as lightweight, heat-resisting textile structural material or composite construction reinforcing material mostly, and especially high modulus fibre extensively is used to the AOSS optical cable, non-metallic optical fiber cables and inside cable.The shortcoming of p-aramid fiber performance is that compressive strength and modulus of compressibility are lower, humidity and ultraviolet light resistant property are poor.
The mechanical property and the production technology of fiber are closely related; Relevant with the aggregated structure that forms, through the research to aggregated structure development process in the aramid fiber forming process, the basic reason that discovery high-modulus aramid fiber has excellent mechanical property and high-modulus is: fiber is finished silk degree of orientation raising after Overheating Treatment under tension force; And by the orientation and stress lure crystallization; The degree of crystallinity of fiber improves about 15% than before handling, and it is big and evenly complete that crystal grain becomes, and the structure homogeneous of fiber is fine and close; Elongation descends, and modulus obviously increases.Thereby reflected that fiber has the importance of tension force Technology for Heating Processing in high-modulus aramid fiber production process.
Conventional processing step:
The first step, spinning------is solidified------alkali cleaning------washing--------drying--------coiling.
In second step,----leg is around--stretching--heat treatment----and reel for the back fiber of reeling
The output of aramid fiber receives the restriction of technological process, and especially high modulus fibre generally is to heat-treat and obtain making aramid fiber, and the restriction of output heat-treated process time be difficult to satisfy the demand of consumption, and the fibre strength loss is big.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of optical cable to use the aramid fiber one-step preppn process to the existing in prior technology problem, and this preparation method's technology is simple, and production efficiency high product performance is more stable.
Technical problem to be solved by this invention can realize through following technical scheme:
A kind of optical cable is used the aramid fiber one-step preppn process; Comprise spinning step, coagulation step, alkali cleaning step, water-washing step, drying steps and coiling step; It is characterized in that: between said coagulation step and alkali cleaning step, increase stretching step, the scope of tensile stress is 1g/d-5g/d; Between said drying steps and coiling step, increase by one first fixating shape step and one second fixating shape step, wherein first fixating shape step adopts the typing of first shaping box, and setting temperature is 220 ℃-350 ℃, and shaping time is 4s-10s; Second fixating shape step adopts the typing of second shaping box, and setting temperature is 350 ℃-550 ℃, and shaping time is 8s-20s.
Before entering first shaping box of the present invention, the moisture content of fiber is 75%-130%.
The present invention reels in the step, and the winding speed of fiber is at 200M/min-600M/min.
The present invention has increased tensioner and shaping heat box on the aramid fiber spinning production line of routine, the position of tensioner is after fiber solidifies, before the alkali cleaning; The purpose of tensioner is increased in line drawing tension force, and shaping heat box provides twice online HEAT SETTING, reaches optimum efficiency through different tension force, temperature, time set; The moisture control more easily of the online preparation fiber of one-step method, certain moisture fiber is heat-treated, and the first day of the lunar month that increases of hydrone acts on; Reduce glass transition temperature; Can avoid the decline of intensity, the raising of more favourable fiber modulus, the present invention can keep under the constant basically situation of fibre strength fiber modulus to improve more than 35%.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth embodiment of the present invention.
A kind of optical cable of the present invention is used the aramid fiber one-step preppn process, comprises spinning step, coagulation step, stretching step, alkali cleaning step, water-washing step, drying steps, first fixating shape step, one second fixating shape step and coiling step.First fixating shape step, second fixating shape step are realized through first shaping box and second shaping box respectively.Before fiber got into first shaping box, the moisture content of fiber was 75%-130%.In the coiling step, the winding speed of fiber is at 200M/min-600M/min.
Table 1 be setting temperature value, shaping time value and the optical cable of tension value, first fixating shape step, one second fixating shape step of stretching step among each embodiment with the optical cable of aramid fiber intensity, elongation, modulus parameter value and Comparative Examples with aramid fiber intensity, elongation, modulus parameter value.
Table 1
Can find out by table 1; The optical cable that various embodiments of the present invention prepare is used aramid fiber, and its intensity, percentage elongation, modulus all are superior to the general aramid fiber of Comparative Examples, and wherein intensity is best with embodiment 6; Percentage elongation is best with embodiment 3, and modulus is best with embodiment 9.
Claims (3)
1. optical cable is used the aramid fiber one-step preppn process; Comprise spinning step, coagulation step, alkali cleaning step, water-washing step, drying steps and coiling step; It is characterized in that: between said coagulation step and alkali cleaning step, increase stretching step, the scope of tensile stress is 1g/d-5g/d; Between said drying steps and coiling step, increase by one first fixating shape step and one second fixating shape step, wherein first fixating shape step adopts the typing of first shaping box, and setting temperature is 220 ℃-350 ℃, and shaping time is 4s-10s; Second fixating shape step adopts the typing of second shaping box, and setting temperature is 350 ℃-550 ℃, and shaping time is 8s-20s.
2. optical cable as claimed in claim 1 is used the aramid fiber one-step preppn process, it is characterized in that, get into first shaping box before, the moisture content of fiber is 75%-130%.
3. optical cable as claimed in claim 1 is used the aramid fiber one-step preppn process, it is characterized in that, the winding speed of fiber is at 200M/min-600M/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100000510A CN102560704A (en) | 2011-01-01 | 2011-01-01 | One-step preparation method of aramid fibers for optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100000510A CN102560704A (en) | 2011-01-01 | 2011-01-01 | One-step preparation method of aramid fibers for optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102560704A true CN102560704A (en) | 2012-07-11 |
Family
ID=46407245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100000510A Pending CN102560704A (en) | 2011-01-01 | 2011-01-01 | One-step preparation method of aramid fibers for optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102560704A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839480A (en) * | 2012-10-02 | 2012-12-26 | 上海会博新材料科技有限公司 | Method for improving strength utilization rate of para-aramid fiber in reinforcing optic cable |
| CN106544748A (en) * | 2016-11-01 | 2017-03-29 | 烟台泰和新材料股份有限公司 | A kind of high drawing p-aramid fiber filament industry production method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016236A (en) * | 1974-05-15 | 1977-04-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for manufacturing aromatic polymer fibers |
| CN1710160A (en) * | 2005-06-17 | 2005-12-21 | 东华大学 | Method for preparing meta aromatic polyamide fiber |
| CN101220530A (en) * | 2007-01-08 | 2008-07-16 | 上海艾麦达化纤科技有限公司 | Production of uniform polyphenylene terephthalamide fibre |
| CN101542026A (en) * | 2006-11-21 | 2009-09-23 | 帝人芳纶有限公司 | Method for obtaining high-tenacity aramid yarn |
| CN101922062A (en) * | 2010-04-23 | 2010-12-22 | 东华大学 | Preparation method for meta-aromatic polyamide fiber |
-
2011
- 2011-01-01 CN CN2011100000510A patent/CN102560704A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4016236A (en) * | 1974-05-15 | 1977-04-05 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for manufacturing aromatic polymer fibers |
| CN1710160A (en) * | 2005-06-17 | 2005-12-21 | 东华大学 | Method for preparing meta aromatic polyamide fiber |
| CN101542026A (en) * | 2006-11-21 | 2009-09-23 | 帝人芳纶有限公司 | Method for obtaining high-tenacity aramid yarn |
| CN101220530A (en) * | 2007-01-08 | 2008-07-16 | 上海艾麦达化纤科技有限公司 | Production of uniform polyphenylene terephthalamide fibre |
| CN101922062A (en) * | 2010-04-23 | 2010-12-22 | 东华大学 | Preparation method for meta-aromatic polyamide fiber |
Non-Patent Citations (2)
| Title |
|---|
| 刘克杰等: "热定型温度对芳纶Ⅲ结构与性能的影响", 《合成纤维工业》, vol. 35, no. 5, 31 October 2012 (2012-10-31), pages 6 - 8 * |
| 吴卫清: "对位芳纶生产中毛丝的产生原因及控制方法", 《江苏纺织》, 31 October 2010 (2010-10-31), pages 42 - 43 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102839480A (en) * | 2012-10-02 | 2012-12-26 | 上海会博新材料科技有限公司 | Method for improving strength utilization rate of para-aramid fiber in reinforcing optic cable |
| CN106544748A (en) * | 2016-11-01 | 2017-03-29 | 烟台泰和新材料股份有限公司 | A kind of high drawing p-aramid fiber filament industry production method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5324472B2 (en) | Flame-resistant fiber and carbon fiber manufacturing method | |
| TWI521108B (en) | Method for producing flame-resistant fiber bundle and mfthod for producing carbon fiber bundle | |
| CN101736431B (en) | Production method of high-strength high-modulus PMIA super-short fiber | |
| CN103306148A (en) | Aramid fiber compound rope and manufacture method thereof | |
| CN105274689A (en) | Method for directly producing fiberglass yarns | |
| CN202164392U (en) | Silk processing device special for silk quilt | |
| CN110016758A (en) | It is a kind of it is high-strength, it is low extension and sailing boat rope of resist bending fatigue and preparation method thereof | |
| CN102560704A (en) | One-step preparation method of aramid fibers for optical cable | |
| CN102797089A (en) | Monofilament-shaped ultrahigh molecular weight polyethylene fiber and continuous preparation method thereof | |
| CN109234883A (en) | 6 high strength yarn multistage drafting device and method of polyamide fibre | |
| JP2010242249A (en) | Flame-proof fiber for high strength carbon fiber, and method for producing the same | |
| CN102701604A (en) | Warp slurry of fiberglass electronic textile yarn | |
| CN105624916B (en) | A kind of manufacture craft of the carbon fiber heat insulation material of quilting shaping | |
| CN207596237U (en) | A kind of chemical fibre line wire-crossing wheel | |
| CN111441098A (en) | High-strength anti-ultraviolet chinlon 66 stretch yarn and preparation method thereof | |
| CN103194900A (en) | Yarn sized solution | |
| EP1953280A3 (en) | Process for the production of a fabric made of extrafine animal fibres which are not industrially weaveable and a fabric obtained thereby. | |
| CN206352179U (en) | It is a kind of to reduce the wrap yarn of filoplume | |
| CN103668625B (en) | A kind of silvalin stranding device and method that promotes fibre reinforced composites mechanical property | |
| CN102560790A (en) | Method for processing floss silk containing metallic yarns | |
| CN203212720U (en) | Yarn of stab-resistant fabric | |
| CN103952772A (en) | Method for improving breaking elongation of raw silk | |
| CN204752936U (en) | High efficiency compound filament yarn that absorbs water | |
| CN214219011U (en) | Quartz fiber and organic fiber mixed-knitting sewing thread | |
| CN112064135A (en) | Manufacturing method of wig fiber with good antibacterial and flame retardant properties |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120711 |
|
| RJ01 | Rejection of invention patent application after publication |