CN101525775A - Drying process for high-strength and high-modulus ultrahigh molecular weight polyethylene fibre - Google Patents
Drying process for high-strength and high-modulus ultrahigh molecular weight polyethylene fibre Download PDFInfo
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- CN101525775A CN101525775A CN200810034218A CN200810034218A CN101525775A CN 101525775 A CN101525775 A CN 101525775A CN 200810034218 A CN200810034218 A CN 200810034218A CN 200810034218 A CN200810034218 A CN 200810034218A CN 101525775 A CN101525775 A CN 101525775A
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Abstract
The invention relates to a drying process for a high-strength and high-modulus ultrahigh molecular weight polyethylene fibre. The drying process adopts a drying system by hot-blast forced circulation; and adopted drying equipment comprises a tank type or a corridor form. Compared with the prior art, the drying process improves a drying process of the production of a ultrahigh molecular weight polyethylene fibre, adopts the hot-blast forced circulation, greatly improves the drying efficiency, reduces the solventcontent of fibre yarn in the drawing process, establishes a good foundation for improving the drawing speed in the drawing procedure and the product quality, and can obtain the high-strength (more than 35 g/d) ultrahigh molecular weight polyethylene fibre.
Description
Technical field
The present invention relates to superhigh molecular weight polyethylene fibers, especially relate to a kind of drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre.
Background technology
Along with human progress and the development of advancing by leaps and bounds of science and technology in recent years, various circles of society grow with each passing day to the demand of special fibre.After carbon fiber and aramid fiber, superhigh molecular weight polyethylene fibers (UHMWPE) with its excellent performance and wide application prospect and extremely people is paid close attention to, and has obtained significant progress in recent years.Superhigh molecular weight polyethylene fibers has high strength, high-modulus and good shock resistance, anti-wear performance and weather resistance, therefore be widely used in fields such as military engineering, Aerospace Engineering, infrastructure project, agricultural machinery, boats and ships hawser, amusement, its range of application has more and more wider gesture.
Making superhigh molecular weight polyethylene fibers is a complicated technology job, the poly molecular weight that is used to make superhigh molecular weight polyethylene fibers can be up to 200-500 ten thousand even higher, macromolecular chain is in height entanglement state, difficulty of processing is very big, and it is bigger to produce high-quality filament difficulty, and domestic do not have ready-made maturation process to use.
At present, high-strength and high-modulus ultrahigh molecular weight polyethylene fibre is short section fibre, and length differs, can't guarantee production length, the application of short length fiber only limits to make ballistic resistant products etc., when making rope series products and fabric, can produce production poor continuity, waste material problem how.Simultaneously, the production technology of existing superhigh molecular weight polyethylene fibers exists that circuit length, some operation intermittent operation, complex process are difficult to control, wire broken rate height, production efficiency is low, energy consumption is high, product quality is difficult to problems such as control, has limited the production and the application of superhigh molecular weight polyethylene fibers.
Summary of the invention
Purpose of the present invention is exactly to provide in order to overcome the defective that above-mentioned prior art exists that a kind of technology is simple, production efficiency is high, the drying process of the high-strength and high-modulus ultrahigh molecular weight polyethylene fibre of good quality of product.
Purpose of the present invention can be achieved through the following technical solutions:
The drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre is characterized in that, this drying process adopts the drying system of hot blast forced circulation, and the drying equipment of employing comprises box or the path form.
The temperature of described hot blast is 40～80 ℃.
Compared with prior art, the present invention improves the drying process in the superhigh molecular weight polyethylene fibers production, adopt the hot blast forced circulation, improved drying efficiency greatly, reduce filametntary solvent in the drafting process, for drafting process improves draft speed and product quality lays a good foundation, adopt the superhigh molecular weight polyethylene fibers that can obtain high strength (35g/d and more than) behind the present invention.
The specific embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1
A kind of drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre, this drying process adopts box-type drying equipment, and the drying system (hot blast temperature is 40 ℃) of employing hot blast forced circulation, reduce thermal loss, and making the interior temperature of casing even, the extractant on filament surface is more volatile under quick the flowing of hot blast, strengthens drying effect, effectively reduce the residual content of extractant in the filament, this also haves laid a good foundation for a fast super times drawing-off.
Embodiment 2
A kind of drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre, this drying process adopts river in Zhejiang Province formula drying equipment, and the drying system (hot blast temperature is 60 ℃) of employing hot blast forced circulation, reduce thermal loss, and making the interior temperature of casing even, the extractant on filament surface is more volatile under quick the flowing of hot blast, strengthens drying effect, effectively reduce the residual content of extractant in the filament, this also haves laid a good foundation for a fast super times drawing-off.
Embodiment 3
A kind of drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre, this drying process adopts river in Zhejiang Province formula drying equipment, and the drying system (hot blast temperature is 80 ℃) of employing hot blast forced circulation, reduce thermal loss, and making the interior temperature of casing even, the extractant on filament surface is more volatile under quick the flowing of hot blast, strengthens drying effect, effectively reduce the residual content of extractant in the filament, this also haves laid a good foundation for a fast super times drawing-off.
Claims (2)
1. the drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre is characterized in that, this drying process adopts the drying system of hot blast forced circulation, and the drying equipment of employing comprises box or the path form.
2. the drying process of high-strength and high-modulus ultrahigh molecular weight polyethylene fibre according to claim 1 is characterized in that, the temperature of described hot blast is 40～80 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810034218A CN101525775A (en) | 2008-03-04 | 2008-03-04 | Drying process for high-strength and high-modulus ultrahigh molecular weight polyethylene fibre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810034218A CN101525775A (en) | 2008-03-04 | 2008-03-04 | Drying process for high-strength and high-modulus ultrahigh molecular weight polyethylene fibre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101525775A true CN101525775A (en) | 2009-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN200810034218A Pending CN101525775A (en) | 2008-03-04 | 2008-03-04 | Drying process for high-strength and high-modulus ultrahigh molecular weight polyethylene fibre |
Country Status (1)
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| CN (1) | CN101525775A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102115937A (en) * | 2009-12-30 | 2011-07-06 | 宁波荣溢化纤科技有限公司 | Preparation method of ultrahigh molecular weight polyethylene (UHMWPE) short fibers |
| CN106350883A (en) * | 2016-08-08 | 2017-01-25 | 青岛大学 | Preparation method of graphene oxide/polyacrylonitrile composite fiber |
-
2008
- 2008-03-04 CN CN200810034218A patent/CN101525775A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102115937A (en) * | 2009-12-30 | 2011-07-06 | 宁波荣溢化纤科技有限公司 | Preparation method of ultrahigh molecular weight polyethylene (UHMWPE) short fibers |
| CN102115937B (en) * | 2009-12-30 | 2013-03-27 | 宁波荣溢化纤科技有限公司 | Preparation method of ultrahigh molecular weight polyethylene (UHMWPE) short fibers |
| CN106350883A (en) * | 2016-08-08 | 2017-01-25 | 青岛大学 | Preparation method of graphene oxide/polyacrylonitrile composite fiber |
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Open date: 20090909 |