CN1626705A - Fiber in low cost and high intensity, and technique of industrialization production - Google Patents
Fiber in low cost and high intensity, and technique of industrialization production Download PDFInfo
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- CN1626705A CN1626705A CN 200310114466 CN200310114466A CN1626705A CN 1626705 A CN1626705 A CN 1626705A CN 200310114466 CN200310114466 CN 200310114466 CN 200310114466 A CN200310114466 A CN 200310114466A CN 1626705 A CN1626705 A CN 1626705A
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Abstract
The present invention discloses an industrial production process of PE high-strength fibre. Said process includes the following steps: material preparation, melting by utilizing plastic extruder; die-spinning, cooling by using cold water; heating by using hot water; drawing by using firster-order drawing machine; secondary heating; and further drawing by using second-order drawing machine so as to obtain the invented PE high-strength fibre. Its monofilament tensile strength is less than 16.5 G/D and greater than 12.5 G/D.
Description
Affiliated technical field
The present invention relates to PE fiber and production technology, particularly relate to PE high strength fibre and industrialized producing technology.
Technical background
The common used in industry fibers material comprises the PE superhigh intensity tailor-made fibre of high strength polyamide fibre, terylene, polypropylene fibre, PE high strength fibre and latest development on the market now, the consumption in whole world every year reaches millions of tons, and wherein the consumption in China every year had both reached tens of tons.High strength polyamide fibre, terylene, polypropylene fibre, shortcoming such as when objective reality was used, ubiquity intensity was lower, quality is big, high tensile elongation, not corrosion-resistant, ageing resistace difference, and physical property and chemical property instability and the high shortcoming of cost performance; According to the inventor in the understanding of the industry and the search on network, when finding that existing new material is studied, ubiquity is to the tendency of PE superhigh intensity tailor-made fibre research and development, but PE superhigh intensity tailor-made fibre (reaches hundreds of units/KG) can't be accepted by the chemical fibre application person of exhausted big number on the market price and because the expensive high price that causes; The PE high strength fibre (cost price by 14 yuan/KG) be subjected to chemical fibre application person to be accepted owing to physical property and stable chemical performance and cost performance are high, but the manufacturing technique of existing high strength fibre comprises:
A, get the raw materials ready, choose raw material;
B, plastic extruder fusion are passed through the plastic extruder fusion with above-mentioned raw material;
C, spray silk are got to know, and the raw material after the above-mentioned fusion is got to know by the spray silk extrude the spray silk;
D, cold water cooling are cooled to precursor with above-mentioned spray silk through subcooled water;
The heating of E, hot water is heated above-mentioned precursor through superheated water, its hot water temperature is 80C～100 ℃;
F, first order stretching-machine stretch, and above-mentioned precursor is drawn into the as-spun fibre silk by first order stretching-machine, and its extensibility is 8～10 times.
Wherein, above-mentioned spray silk has produced folding when becoming precursor after the subcooled water cooling, and when superheated water heating and stretching, the energy shortage of hot water is so that the winding node of folding macromolecular chain is opened and fully stretch, at this moment, and when extensibility during greater than 10 times, the intensity of monofilament will sharply descend along with the rising of extensibility, therefore extensibility can only be limited in 8～10 times, so, pass through PE high strength fibre silk after the above-mentioned production technology both the tensile strength of as-spun fibre silk was the highest and can only reach 6.5G/D.
Summary of the invention
The object of the invention is intended to solve the existing problem of PE filament of prior art, provide a kind of winding node of folding macromolecular chain that makes to open and fully stretching, extension, monofilament tensile strength is less than 16.5G/D and greater than 12.5G/D, the PE low-cost high-strength fiber and the industrialized producing technology that have that cost is low, high strength, light weight (can bubble through the water column), low stretching, physical property and stable chemical performance, UV resistant irradiation, seawater corrosion resistance, anti-aging, low temperature resistant, weatherability and temperature wait advantage repeatedly.
The present invention solves the method that its problem adopts: PE low-cost high-strength fiber industry production technology, and its technical process is:
A, get the raw materials ready, choose raw material;
B, plastic extruder fusion are passed through the plastic extruder fusion with above-mentioned raw material;
C, spray silk are got to know, and the raw material after the above-mentioned fusion is got to know by the spray silk extrude the spray silk;
D, cold water cooling are cooled to precursor with above-mentioned spray silk through subcooled water;
The heating of E, hot water is heated above-mentioned precursor through superheated water, its hot water temperature is 80C～100 ℃;
F, first order stretching-machine stretch, and above-mentioned precursor is drawn into the as-spun fibre silk by first order stretching-machine, and its extensibility is 8～10 times;
G, once more the heating, with above-mentioned as-spun fibre silk through once more the heating;
H, second level stretching-machine stretch, and the as-spun fibre silk after above-mentioned steam or the hot blast heating is drawn into the finished fiber silk by second level stretching-machine.
Raw material of the present invention is common HDPE (high density polyethylene (HDPE)).
Of the present inventionly be heated to be the heating of steam or hot blast once more, its steam or hot blast temperature are 127 ℃～135 ℃.
As-spun fibre silk of the present invention opens and fully stretching, extension the winding node of its folding macromolecular chain through heating and second level stretching-machine stretching once more.
As-spun fibre silk after the heating once more of the present invention stretches by second level stretching-machine, and its extensibility is 1.8～2.1 times.
Twice extensibility sum of the present invention is less than 18 times.
PE low-cost high-strength fiber, it is for to be made according to above-mentioned technical process, and its monofilament tensile strength is less than 16.5G/D and greater than 12.5G/D.
PE high strength fibre of the present invention be applied to restrict series products, fishnet, setline or string, security protection articles for use, fiber reinforcement type scrim material, bio-medical material and high-performance pressure vessel or construction material.
As-spun fibre silk of the present invention is through steam or hot blast heats once more and second level stretching-machine stretches, obtain enough energy, the winding node of its folding macromolecular chain is opened and fully stretching, extension, so, its monofilament tensile strength can reach 16.5G/D, and is minimum greater than 12.5G/D; The PE high strength fibre that is made according to above-mentioned technical process has that cost is low, intensity is high, light weight (can bubble through the water column), low, the physical property of stretching and stable chemical performance, UV resistant irradiation, seawater corrosion resistance, anti-aging, low temperature resistant, weatherability and temperature wait advantage repeatedly.Because be subjected to the molecule quantitative limitation of HDPE, twice extensibility sum is less than 18 times, in the unit volume, its overlapping quantity is many, so the intensity height.Steam or hot blast temperature are 127 ℃～135 ℃, and it is separating between the critical-temperature that twines and melt the heating temperature of as-spun fibre silk, the as-spun fibre silk not only can have been separated twine and but also do not melt.Though the physicochemical property of PE high strength fibre is inferior to PE superhigh intensity tailor-made fibre and aramid fiber, but PE high strength fibre cost performance of product height, be better than general high-strength chemical fiber polyamide fibre, terylene and polypropylene fibre commonly used, and raw material sources are easy, price is low, substandard products can 100% be recycled, and finished product cost performance height belongs to a kind of novel producing high-molecular fiber material that can update to existing fibers material commonly used.This PE high strength fibre can directly utilize existing P E high strength fibre to process once more and obtain to have that cost is low, the PE high strength fibre of intensity advantages of higher.The PE high strength fibre is widely used, as can be applicable to as on rope series products, fishnet, setline or string, security protection articles for use, fiber reinforcement type scrim material, bio-medical material and the products such as high-performance pressure vessel or construction material.
Description of drawings
Fig. 1 is a process chart of the present invention.
Specific embodiment
1 the present invention is further illustrated in conjunction with the accompanying drawings.
PE low-cost high-strength fiber industry production technology, its technical process is:
A, get the raw materials ready, choose raw material, it is common HDPE (high density polyethylene (HDPE));
B, plastic extruder fusion, by the plastic extruder fusion, this plastic extruder is existing spiral plastic extruder with above-mentioned HDPE, the effect of this processing step is that HDPE is processed into the colloidal sol body;
C, spray silk are got to know, and the colloidal sol body of the HDPE after the above-mentioned fusion is got to know by the spray silk extrude the spray silk, and make it into tow, and this spray silk is got to know and is general type equipment;
D, cold water cooling are cooled to precursor with above-mentioned spray silk through subcooled water, and above-mentioned spray silk has produced folding when becoming precursor after the cold water cooling, and the effect of this processing step is to prevent each tow bonding, and it is folding that precursor has been produced;
The heating of E, hot water is heated above-mentioned precursor through superheated water, its hot water temperature be 80C～100 ℃, and precursor is through the superheated water heating and when stretching, and the energy of hot water is opened the winding node of some macromolecular chains that fold;
F, first order stretching-machine stretch, and above-mentioned precursor is drawn into the as-spun fibre silk by first order stretching-machine, and its extensibility is 8～10 times, and the tensile strength of the as-spun fibre silk after the above-mentioned production technology of process is up to 6.5G/D;
A, steam or hot blast heat once more, above-mentioned as-spun fibre silk is heated once more through steam or hot blast, and its steam or hot blast temperature are 127 ℃～135 ℃, and the as-spun fibre silk heats once more through steam or hot blast, obtain enough energy, the winding node of its folding macromolecular chain is opened;
B, second level stretching-machine stretch, and the as-spun fibre silk after above-mentioned steam or the hot blast heating is drawn into the finished fiber silk by second level stretching-machine, and its extensibility is 1.8～2.1 times, and the macromolecular chain that the winding node is opened fully stretches.
Because be subjected to the molecule quantitative limitation of HDPE, twice extensibility sum is less than 18 times.
Steam or hot blast temperature are 127 ℃～135 ℃, and it is separating between the critical-temperature that twines and melt the heating temperature of as-spun fibre silk, the as-spun fibre silk not only can have been separated twine and but also do not melt.
According to the PE high strength fibre that above-mentioned technical process is made, its monofilament tensile strength is less than 16.5G/D and greater than 12.5G/D.
The good physical performance of PE high strength fibre specifically describes as follows:
1, there is not moisture regain;
2, boiling water shrinkage is less than 1%;
3, no hydrophily;
4, excellent acid;
5, good alkali resistance;
6, good anti-most chemical reagent;
7, extraordinary ultraviolet resistance;
8, fusing point is 135 ℃～145 ℃;
9, good resistance to corrosion seawater;
10, good weatherability and temperature performance etc. repeatedly.
As-spun fibre silk of the present invention is through steam or hot blast heats once more and second level stretching-machine stretches, obtain enough energy, the winding node of its folding macromolecular chain is opened and fully stretching, extension, so, its monofilament tensile strength can reach 16.5G/D, and is minimum greater than 12.5G/D; (its tensile strength is 30.9Cn/dt though the physicochemical property of PE high strength fibre is inferior to PE superhigh intensity tailor-made fibre and aramid fiber, the amount of touching is 1764Cn/dt), but PE high strength fibre cost performance of product height, be better than general high-strength chemical fiber polyamide fibre, terylene and polypropylene fibre commonly used, and raw material sources are easy, and price is low, and substandard products can 100% be recycled, finished product cost performance height belongs to a kind of novel producing high-molecular fiber material that can update to existing chemical fibre common used material.
The PE high strength fibre is widely used, as can be applicable to:
(1), the rope series products, because of the PE high strength fibre has intensity height, light weight, advantage such as easy to carry, so can be applicable to as boats and ships with rope and land with series products of restricting such as ropes;
(2) fishnet, because of the PE high strength fibre has intensity height, light weight, shock-resistant, wear-resistant, good toughness, thus can be applicable to quality requirement light, powerful require big, toughness reguirements is good, knot strength requires big and can shock-resistant and anti abrasive fishnet netting twine;
(3), setline or string, because of advantages such as PE high strength fibre intensity height, light weight are applied on setline or the string;
(4), security protection articles for use, because the ratio of elongation of PE high strength fibre is less, so compare with general fiber, has higher tearing strength, so during as exciting vehicle safety belt, can limit the amount of movement of passenger when colliding, so, security performance is good, mar proof, light resistance, resistance to water, the cold resistance that has because of the PE high strength fibre, thereby the service life that can improve safety belt in addition; The high-strength ability that the PE high strength fibre has, light weight and resistance to ag(e)ing are good, so, can make it be applied to build on the safety article;
(5), the fiber reinforcement type scrim material, the PE high strength fibre has higher tearing strength, favorable waterproof property and ultraviolet resistance, so can be applicable on the goods such as tent cloth, strong conveyer belt;
(6), bio-medical material, therefore biocompatibility, durability and the high stability that has because of the PE high strength fibre and can not cause allergy when using can be applicable on the bio-medical material such as medical gloves;
(7), high-performance pressure vessel or construction material, the PE high strength fibre has good chemical attack and antilysis performance, so its composite can replace glass fibre and sheet metal and makes container.
Through the inventor's research with grope and in the experience of the industry, and the PE low-cost high-strength fiber and the industrialized producing technology of invention, so its a kind of novel producing high-molecular fiber material that can update to existing chemical fibre common used material is but extensive use and popularization.The present invention simultaneously is also to the Mathematical Modeling software implementation of this technology, and production cost is low, the efficient height.
The above, only for preferred embodiment of the present invention, so can not limit scope of the invention process with this, i.e. equivalence variation and the modification of doing according to the present patent application claim and description all should still belong in the scope that patent of the present invention contains.
Claims (8)
1, PE low-cost high-strength fiber industry production technology, its technical process is:
A, get the raw materials ready, choose raw material;
B, plastic extruder fusion are passed through the plastic extruder fusion with above-mentioned raw material;
C, spray silk are got to know, and the raw material after the above-mentioned fusion is got to know by the spray silk extrude the spray silk;
D, cold water cooling are cooled to precursor with above-mentioned spray silk through subcooled water;
E, hot water heating are heated above-mentioned precursor through superheated water, its hot water temperature is 80 ℃～100 ℃;
F, first order stretching-machine stretch, and above-mentioned precursor is drawn into the as-spun fibre silk by first order stretching-machine, and its extensibility is 8～10 times;
It is characterized in that: its technical process also comprises:
G, once more the heating, with above-mentioned as-spun fibre silk through once more the heating;
H, second level stretching-machine stretch, and the as-spun fibre silk after the above-mentioned heating once more is drawn into the finished fiber silk by second level stretching-machine.
2, PE low-cost high-strength fiber industry production technology according to claim 1, it is characterized in that: described raw material is common HDPE (high density polyethylene (HDPE)).
3, PE low-cost high-strength fiber industry production technology according to claim 1 is characterized in that: describedly be heated to be the heating of steam or hot blast once more, its steam or hot blast temperature are 127 ℃～135 ℃.
4, according to claim 1 or 3 described PE low-cost high-strength fiber industry production technologies, it is characterized in that: described as-spun fibre silk opens and fully stretching, extension the winding node of its folding macromolecular chain through heating and second level stretching-machine stretching once more.
5, according to claim 1 or 2 or 3 described PE low-cost high-strength fiber industry production technologies, it is characterized in that: the as-spun fibre silk after the described heating once more stretches by second level stretching-machine, and its extensibility is 1.8～2.1 times.
6, PE low-cost high-strength fiber industry production technology according to claim 1 or 5, it is characterized in that: described twice extensibility sum is less than 18 times.
7, PE low-cost high-strength fiber is characterized in that: it is for to be made according to above-mentioned technical process, and its monofilament tensile strength is less than 16.5G/D and greater than 12.5G/D.
8, PE low-cost high-strength fiber according to claim 7 is characterized in that: described PE high strength fibre be applied to restrict series products, fishnet, setline or string, security protection articles for use, fiber reinforcement type scrim material, bio-medical material and high-performance pressure vessel or construction material.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101144666A CN100422403C (en) | 2003-12-10 | 2003-12-10 | Fiber in low cost and high intensity, and technique of industrialization production |
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| CNB2003101144666A CN100422403C (en) | 2003-12-10 | 2003-12-10 | Fiber in low cost and high intensity, and technique of industrialization production |
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| CN1626705A true CN1626705A (en) | 2005-06-15 |
| CN100422403C CN100422403C (en) | 2008-10-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009105926A1 (en) * | 2008-02-26 | 2009-09-03 | 山东爱地高分子材料有限公司 | 10-50 g/d high strength polyethylene fiber and preparation method thereof |
| CN101929086A (en) * | 2010-07-19 | 2010-12-29 | 宜兴市恒龙塑料制品有限公司 | Production method of PP (Polypropylene) winding rope for submarine cable |
| WO2021098215A1 (en) * | 2019-11-21 | 2021-05-27 | 江苏大学 | High-safety high-volume-energy-density quasi-solid-state lithium-ion battery and manufacturing method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69836576D1 (en) * | 1997-05-07 | 2007-01-18 | Peri Dent Ltd | floss |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009105926A1 (en) * | 2008-02-26 | 2009-09-03 | 山东爱地高分子材料有限公司 | 10-50 g/d high strength polyethylene fiber and preparation method thereof |
| US8188206B2 (en) * | 2008-02-26 | 2012-05-29 | Shandong Icd High Performance Fibres Co., Ltd. | 10-50 G/D high strength polyethylene fiber and preparation method thereof |
| AU2008351679B2 (en) * | 2008-02-26 | 2013-06-27 | Shandong Icd High Performance Fibres Co., Ltd | 10-50 g/d high strength polyethylene fiber and preparation method thereof |
| CN101929086A (en) * | 2010-07-19 | 2010-12-29 | 宜兴市恒龙塑料制品有限公司 | Production method of PP (Polypropylene) winding rope for submarine cable |
| WO2021098215A1 (en) * | 2019-11-21 | 2021-05-27 | 江苏大学 | High-safety high-volume-energy-density quasi-solid-state lithium-ion battery and manufacturing method therefor |
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| CN100422403C (en) | 2008-10-01 |
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