CN1467315A - Production process of engineering fibre for polyester road - Google Patents
Production process of engineering fibre for polyester road Download PDFInfo
- Publication number
- CN1467315A CN1467315A CNA031375502A CN03137550A CN1467315A CN 1467315 A CN1467315 A CN 1467315A CN A031375502 A CNA031375502 A CN A031375502A CN 03137550 A CN03137550 A CN 03137550A CN 1467315 A CN1467315 A CN 1467315A
- Authority
- CN
- China
- Prior art keywords
- polyester
- fiber
- road
- production technology
- technical
- 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.)
- Granted
Links
Images
Abstract
A process for preparing the polyester fibres used for road engineering includes such steps as pretreating the polyester as raw material, fusing and extruding by screw extruder, jet spinning, cooling, prestretching, winding, collecting to 6-7 hundred thousands dens, tension mixing, stretching in oil bath, stretching, adding hot activator, stretching, adding hot activator, overheat stretching, extension, compression, drying and cutting short.
Description
Technical field:
The present invention relates to a kind of road surface new material that is used for highway construction, be specifically related to a kind of high-performance pitch and strengthen composite material---polyester road technical fiber and production method thereof.
Background technology:
As far back as the seventies in 20th century, U.S. Kapejo company develops successful BoniFiber (BoniFibers) road technical fiber the earliest, (claiming polyester staple fiber, PET road staple fibre again).It can improve high-temperature stability, the fatigue durability of bituminous paving, prolongs the service life of bituminous paving, in the extensive use of the many countries of America and Europe.Along with the fast development of Chinese national economy, for improving the construction quality of bituminous paving, introduced U.S.'s BoniFibers road fiber in recent years, admixture is in asphalt.So far the whole nation has hundreds of engineering construction high-quality asphalt roads and bridge pavement.But the fibrous material cost height of introducing is unfavorable for penetration and promotion.
Make a general survey of the polyester melting spining technology in the existing 30 years developing histories of China, polyester fiber production is divided into following three major types, all is applied to the spinning field.
1, polyester filament claims terylene to stretch oneself and yawn silk again, its production method promptly: polyester material drying, screw rod extruding, is reeled and is stretched oneself and yawn moulding, heating drawing and setting, finished product in advance and stretch oneself and yawn a doff at the melting spinning, is applied to weaving face fabric.
2, polyester elastic filament claims dacron elasticity silk again, its production method promptly: polyester material drying, screw rod extruding melting spinning, heating are stretched oneself and yawn and are added bullet or network, finished product elastic filament doff.Be applied to weaving face fabric.
3, polyester staple fiber claims polyester staple fiber again, its production method promptly: polyester material drying, screw rod extruding melting spinning, coiling and molding, boundling, three roads stretch, curl typing, cut off the finished product packing.Be applied to spinning and nonwoven production and make main raw material.
But reach the polyester fiber of developing in the textile applications field from present known polyester fiber production technology, all do not relate to polyester fiber and be applied to building engineering field, be i.e. the building material fiber production method.
Summary of the invention:
Purpose of the present invention is for satisfying the road with the production domesticization of technical fiber, and provides a kind of polyester road with the technical fiber production method of (claiming polyester staple fiber, PET road staple fibre).
Technical scheme of the present invention is as follows.
A kind of polyester road specially is applied to rise in the asphalt booster action with the production technology of technical fiber, claims terylene short fiber peacekeeping PET road staple fibre again, and its fiber selects for use raw material to comprise: polyester slice, polyester raw material, PET section.
Technical process comprises the vacuumize of polyester material, by screw rod melt extruded filament spinning component, the blast-cold of spray silk ring but, air channel predraft, coiling and molding, boundling, tension, drawing-off, oil bath stretch, cross hot-stretch, tension, compacting conveying, dryness finalization, cut-out, finished product packing.
Add auxiliary agent and comprise age resister, activator, organosilicon, siloxanes, dispersant, peregal, polyester oiling agent.
The fibre cutting specification is 2mm, 3mm, 4mm, 6mm, 8mm, 12mm.
The conventional polyester raw material that is applied to polyester textile fiber, its inherent viscosity is all between 0.62～0.66.And, require tensile strength height, elastic modelling quantity big for the road technical fiber, and therefore, the inherent viscosity of the polyester raw material of selecting for use should be between 0.8～0.9, and fusing point should be higher than 270 ℃.
The preliminary treatment of polyester raw material: with water-tight equipment vacuum, tackify drying process, raw material is reached the index of aridity less than 0.2 ‰, and guarantee that inherent viscosity is more than 0.8 earlier.
With vacuum, the dry raw material of crossing of tackify, drop into sealing spinning feed bin, be squeezed to the spinning manifold assembly by the screw rod melting, then through spray silk, ring blast-cold but, air channel predraft, coiling and molding be the noodles silk.
After stretch oneself and yawn the part producing flow process:
With the noodles silk of coiling and molding, boundling becomes 60～700,000 dawn (promptly 30～40 barrels), by the tension mixing, deliver to first five roller and stretch oneself and yawn machine, carry out oil bath by the deep fat groove and stretch, stretch to second the five roller machine of stretching oneself and yawn, add heat activated agent, stretch, add heat activated agent to the 3rd the five roller machine of stretching oneself and yawn, cross hot-stretch, tension, compacting is carried, to typing drier dryness finalization, cut off finished product packing.
Described heat activated agent comprises: activator, organosilicon, siloxanes, dispersant, peregal, oil absorbent.
Beneficial effect of the present invention:
Road fiber commonly used in the world at present has natural fabric (lignin fibre) and organic fiber (comprising polyester fiber and polyacrylonitrile fibre).
1, lignin fibre is compared with organic fiber, lignin fibre is the fiber that extracts in a kind of natural trees, its degree of polymerization, degree of molecular orientation, mechanical strength, anti-various alkalescence, resistance to ag(e)ing are relatively poor, lignin fibre is subject to nature and human factor is encroached on and efflorescence, organic fiber is then very stable, more can prolong the bituminous paving life-span, and free from environmental pollution, organic fiber more can improve bituminous paving intensity and service life than lignin fibre, more can prevent the surface deformation cracking; And pitch and organic fiber generally all be from oil, extract, synthetic, thereby acrylic fiber is easy to evenly sneak in the pitch, and clustering phenomena in use takes place the lignin fibre easy entanglement.
2, there are polyacrylonitrile fibre and polyester fiber etc. in road at present commonly used with organic fiber, these two kinds of material compared, and the diameter of polyacrylonitrile fibre is thin, and tensile strength is higher, but fracture elongation very low (having only 8～12%), and this explanation fiber is crisp and easily break; It is high to require tensile strength not pursue simply for the bituminous concrete reinforcement, and fracture elongation is an important parameters very, because all factors in road surface, as: expanding with heat and contract with cold of the temperature difference sooner or later, external impacts etc. make the reinforcement fiber bear very big tensile force.Fracture elongation is too low will to cause the too early fracture of fiber, loses the effect of reinforcement.And the polyester road fiber not only has very high tensile strength, and elongation at break also very big (reaching about 50%), like this morning and evening temperature difference expand with heat and contract with cold and the influence of external impacts etc. under, the polyester fiber bituminous concrete can bear very big tensile force and elongation strain.
3, the fiber made of these two kinds of materials of the fine fiber of polyester and polypropylene all has high-temperature behavior, but polyester fiber is higher, introducing the fine material melting point temperature of polypropylene according to data is 200 ℃, and fiber fiber under 240 ℃ of temperature will become brown, and this illustrative material molecular structure is destroyed.And the mix temperature of bituminous concrete is usually greater than 200 ℃.Therefore the fine fiber of polypropylene is as the reinforcement of bituminous concrete, when construction, to having relatively high expectations of control mix temperature.And the melting temperature of polyester road fiber reaches more than 250 ℃, is much higher than the melting temperature of the fine material of polypropylene, and the asphalt of polyester road fiber need not change original construction technology, and is simple to operation.Polyester fiber is more more convenient, practical than the road fiber of the fine material of polypropylene in actual use.
4, the polyester road fiber can adsorb 150% oil mass above itself weight, because its good oil suction effect, the viscosity and the cohesive strength of pitch are increased, simultaneously because crisscross reinforced action, make compound have higher-strength, greatly improved the pliability on road surface, thus the pavement performances such as high temperature rutting resistance, low-temperature cracking-resistance, anti-fatigue performance and anti-water damage performance of the bituminous paving that improves well, thus prolonged the service life on road surface greatly.
Description of drawings:
Accompanying drawing is a process chart of the present invention.
The specific embodiment:
Before to spin the part technological parameter as follows:
1. the dry requirement of polyester raw material, dry moisture is less than 0.2 ‰, and the tackify inherent viscosity is more than 0.8.
2. screw rod melt extruded temperature and speed: screw rod heat 300 ℃ in a district, 320 ℃ in two districts, 345 ℃ in three districts, 365 ℃ in four districts, 350 ℃ in five districts, 345 ℃ in six districts.80 kilograms of screw rod extruding forces, 65 rev/mins of speed.
3. melt filtration adopts 220 order filter cores, measuring pump 10CC/40 commentaries on classics, spinnerets Φ 0.5/600 hole, ring blower cooling wind speed 0.4 second.18 ℃～22 ℃ of wind-warm syndrome, 650 meters/minute of convoluting speeds.
After to stretch oneself and yawn processing parameter as follows:
1. moulding noodles silk after to stretch oneself and yawn boundling 60～700,000 dawn be proper.
2. the deep fat groove is 85 ℃～90 ℃, and oil concentration remains 3～4%.
3. draw ratio is 2.8～3 times for the first time, and draw ratio is 1～1.5 times for the second time, and it is 0.1～0.2～doubly that the tension compacting is carried, 500～600 meters/minute of pipeline speed.
4. activator, activator concentration are 3～3.5%, heat 90 ℃～95 ℃.
5. 85 ℃ in the dryer temperature of finalizing the design one district, 100 ℃ in two districts, 120 ℃ in three districts, 120 ℃ in four districts, 115 ℃ in five districts, 110 ℃ in six districts, 40 ℃ in seven districts, eight district's cooling and shapings.
6. cut off: the normal polyester fibre cutting is all in 38mm, 51mm, these several rules of 65mm, 76mm, and product is used accurate to cotton spinning, wool spinning, nonwoven production requirement.But the polyester road with engineering fiber applications particularity, is redesigned for this reason and makes special-purpose cutting machine, and this special use is cut off function and is cut into 2mm, 3mm, 4mm, 6mm, 8mm, a 12mm6 specification product.
The present invention can be widely used in the various architectural engineerings.
Claims (4)
1, a kind of polyester road specially is applied to rise in the asphalt booster action with the production technology of technical fiber, claims terylene short fiber peacekeeping PET road staple fibre again, and it is characterized in that: fiber selects for use raw material to comprise: polyester slice, polyester raw material, PET cut into slices.
2, polyester according to claim 1 road is with the production technology of technical fiber, it is characterized in that: technical process comprises the vacuumize of polyester material, by screw rod melt extruded filament spinning component, the blast-cold of spray silk ring but, air channel predraft, coiling and molding, boundling, tension, drawing-off, oil bath stretch, cross hot-stretch, tension, compacting conveying, dryness finalization, cut-out, finished product packing.
3, polyester according to claim 1 road is with the production technology of technical fiber, and it is characterized in that: it adds auxiliary agent and comprises age resister, activator, organosilicon, siloxanes, dispersant, peregal, polyester oiling agent.
4, polyester according to claim 1 road is with the production technology of technical fiber, and it is characterized in that: the fibre cutting specification is 2mm, 3mm, 4mm, 6mm, 8mm, 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03137550 CN1467315B (en) | 2003-06-18 | 2003-06-18 | Production process of engineering fibre for polyester road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03137550 CN1467315B (en) | 2003-06-18 | 2003-06-18 | Production process of engineering fibre for polyester road |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1467315A true CN1467315A (en) | 2004-01-14 |
| CN1467315B CN1467315B (en) | 2010-04-28 |
Family
ID=34154811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03137550 Expired - Fee Related CN1467315B (en) | 2003-06-18 | 2003-06-18 | Production process of engineering fibre for polyester road |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1467315B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350083C (en) * | 2005-01-25 | 2007-11-21 | 陈成泗 | Process for production of special-shaped high polymer plastic-steel fabric |
| CN102010151A (en) * | 2010-11-02 | 2011-04-13 | 江苏省交通科学研究院股份有限公司 | Asphalt mixture and preparation method thereof |
| CN105348830A (en) * | 2015-12-08 | 2016-02-24 | 余姚市交通规划设计研究院 | High-modulus coarse-fiber-reinforced asphalt mixture |
| CN115108759A (en) * | 2022-07-08 | 2022-09-27 | 东南大学 | Cold-mixing close-graded carbon dioxide copolymer mixture and preparation and paving methods thereof |
-
2003
- 2003-06-18 CN CN 03137550 patent/CN1467315B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350083C (en) * | 2005-01-25 | 2007-11-21 | 陈成泗 | Process for production of special-shaped high polymer plastic-steel fabric |
| CN102010151A (en) * | 2010-11-02 | 2011-04-13 | 江苏省交通科学研究院股份有限公司 | Asphalt mixture and preparation method thereof |
| CN105348830A (en) * | 2015-12-08 | 2016-02-24 | 余姚市交通规划设计研究院 | High-modulus coarse-fiber-reinforced asphalt mixture |
| CN115108759A (en) * | 2022-07-08 | 2022-09-27 | 东南大学 | Cold-mixing close-graded carbon dioxide copolymer mixture and preparation and paving methods thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1467315B (en) | 2010-04-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103290497B (en) | A kind of industry functional form 66 nylon fiber and preparation method thereof | |
| CN101563403B (en) | Process of preparation of polyamide compounds with natural fibers and compounds of polyamides with natural fibers | |
| CN101054732A (en) | Method for producing high-strength low-extension type short fiber by reclaimed polyester bottle slice | |
| EP2746434A1 (en) | High-strength, high-modulus and high-melting point pva fiber and method for manufacturing same | |
| CN104532388A (en) | Colored special-shaped size-stabilized type polyester monofilament and preparation method thereof | |
| CN106671545B (en) | A kind of high microsteping volume content polylactic acid list polymer composites and preparation method thereof | |
| US11141935B2 (en) | Continuous fibrous tape comprising fibres and method for making such tape | |
| CN104762695A (en) | Biodegradable polyester/recycled polyester sheath-core fiber and preparation method thereof | |
| CN109333897B (en) | Compact serial-crystal superstrong super-wear-resistant polyethylene composite material and preparation method thereof | |
| CN102251315A (en) | Method for preparing novel wear-resisting polyester monofilaments for papermaking net | |
| CN106637480A (en) | Preparation method of high-shrinkage fiber | |
| CN1280462C (en) | Composite fibre and producing method thereof | |
| CN1467315B (en) | Production process of engineering fibre for polyester road | |
| CN103556465A (en) | Method for compounding natural protein fiber powder on surfaces of polymer filaments | |
| CN109208107A (en) | A kind of ultra-high molecular weight polyethylene slit fibre and preparation method thereof | |
| CN100376733C (en) | Strong conveyor belt and polyester fibre silk fabric core used thereof | |
| CN1220801C (en) | High viscosity poly ester monofilament and its producing method and use | |
| Hasan et al. | Investigations on the manufacturing and mechanical properties of spun yarns made from staple CF for thermoset composites | |
| CN1811023A (en) | Production process and application of polyester filament | |
| CN110528131A (en) | A kind of manufacturing process of high intensity low friction polytetrafluoroethylene (PTFE) sewing thread | |
| CN1974893A (en) | Prepn process of paraphthalic acid-butanediol succinate copolymer fiber | |
| CN102400381B (en) | Preparation method of spun yarn fabric for enhancing thermoplastic resin | |
| CN1344820A (en) | Production process of polyester/polyester composite hot-melt short fiber | |
| CN1021919C (en) | Process or dimensionally stable polyester yarn | |
| CN1194120C (en) | Method for producing polypropylene concrete reinforced fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20180618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |