CN102864506A - Preparation method of amorphous high-oriented polyethylene filament - Google Patents
Preparation method of amorphous high-oriented polyethylene filament Download PDFInfo
- Publication number
- CN102864506A CN102864506A CN201210364242XA CN201210364242A CN102864506A CN 102864506 A CN102864506 A CN 102864506A CN 201210364242X A CN201210364242X A CN 201210364242XA CN 201210364242 A CN201210364242 A CN 201210364242A CN 102864506 A CN102864506 A CN 102864506A
- Authority
- CN
- China
- Prior art keywords
- filament
- amorphous
- heat treatment
- environment
- preparation
- 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
Abstract
The invention belongs to the field of novel sinning materials, in particular relates to a method for preparing an amorphous high-oriented polyethylene filament by adopting high-density polyethylene. The method comprises the following steps of: 1, spraying a high-density polyethylene masterbatch from a spinning nozzle through a melt spinning machine, drafting the high-density polyethylene masterbatch by 3-5 times to obtain a freshly formed filament; 2, sending the freshly formed filament into a heat treatment chimney, and enabling the freshly formed filament to rapidly enter a shock cooling environment after once drafting; 3, sending the once drafted filament to a heat treatment chimney with same environment to be subjected to secondary drafting, rapidly entering a shock cooling environment again; and 4, sending the secondarily drafted filament to the heat treatment chimney to be subjected to third drafting, rapidly entering a cold treatment environment. By using a multi-time heat drafting and cold treating technology, the amorphous high-oriented polyethylene filament is prepared. The method is simple in process; and the amorphous high-oriented polyethylene filament has the characteristics of amorphism and high orientation.
Description
Technical field
The invention belongs to the new textile material field, particularly relate to a kind of high density polyethylene (HDPE) that adopts and prepare method amorphous, the highly oriented polyethylene long filament.
Background technology
In recent years, the high-performance of fiber, high function and new construction are that the researcher is to the emphasis of fibers material research always, because polyethylene structure is simple, function admirable, and the source is abundant, has high-modulus, high strength, corrosion-resistant and excellent dielectric properties, particularly its density is very low, that density is minimum in all high-performance fibers, once appearance, just cause material supply section scholar's broad interest, development is rapid, in space flight, the civil areas such as the military service such as weapons and athletic sports appliance obtain to use widely, scientists is devoted to the developmental research of polyethylene fiber tencel always
It is little to study now more high-strength high-modulus polyethylene fiber density, better softness with high strength and modulus and fiber, have preferably endurance and crocking resistance, but because the elongation at break of high-strength high-modulus polyethylene fiber is less, in weaving process, be prone to the cracked ends weft-broken, be difficult for weaving.But the performance of polyethylene uniqueness can be widely used in a plurality of fields, extremely the favor of researcher and manufacturing enterprise.Take polyethylene as raw material, prepare a kind of have amorphous, the highly oriented polyethylene long filament is particularly important.
Summary of the invention
The object of the present invention is to provide little, the degree of orientation of a kind of degree of crystallinity, the preparation method of simple high amorphous, the highly oriented polyethylene long filament of preparation technology.
For achieving the above object, method of the present invention comprises the following steps:
1) with the high density polyethylene (HDPE) master batch, through the melt spinning machine hopper, by the spinning head ejection, and with 3～5 times of drawing-offs, obtains spun filament;
2) spun filament is sent into the heat treatment path, after a drawing-off, entered rapidly the quenching environment;
3) drafted fibre is sent into equivalent environment heat treatment path again through the secondary drawing-off, again enter rapidly the quenching environment;
4) the secondary drafted fibre is sent into three drawing-offs in heat treatment path, entered rapidly the cold treatment environment.
Described high density polyethylene (HDPE) molecular weight is between 50,000 to 500,000.
In the described step 1) melt spinning, the temperature of respectively distinguishing of melt spinning machine is controlled at respectively 140～145 ℃, 145～155 ℃, 155～175 ℃, 175～180 ℃.
Described step 2), step 3) and step 4) heat treatment path temperature are 80～90 ℃.
Described step 2) and step 3) quenching environment be low temperature water-bath path, temperature is at 0 ℃～20 ℃.
Described step 4) cold treatment environment is liquid nitrogen cold wind path, and temperature is at-15 ℃～-10 ℃.
Utilization of the present invention is hot drawing-off and cold treatment technology repeatedly, prepares amorphous, highly oriented polyethylene long filament, and the method technique is simple, amorphous, high orientation that prepared polyethylene filament fibre structure is characterized as.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention, should be understood that these examples only are used for explanation the present invention and are not used in and limit the scope of the invention.Should be understood that in addition that after the content of having read the present invention's instruction those skilled in the art can do work to the present invention and change or revise, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1:
Adopt the high density polyethylene (HDPE) raw material, utilize repeatedly hot drawing-off and quenching treatment technology, prepare a kind of method of amorphous, highly oriented polyethylene long filament, comprise the following steps:
1) with the high density polyethylene (HDPE) master batch, through the melt spinning machine hopper, by the spinning head ejection, and with 3 times of drawing-offs, obtaining degree of crystallinity is about 60%, and the degree of orientation is about 10% spun filament;
Described polyethylene master batch molecular weight is 50,000; The temperature of respectively distinguishing of described melt spinning machine is controlled at respectively 140 ℃, 150 ℃, 155 ℃, 175 ℃;
2) spun filament of spinning head ejection being sent into temperature is 80 ℃ heat treatment path, gives simultaneously 10 times of drawing-offs, and enters rapidly 15 ℃ low temperature water-bath path, carries out quenching and processes, and obtaining degree of crystallinity is about 40%, and the degree of orientation is a drafted fibre of 40%;
3) drafted fibre being sent into temperature is 80 ℃ heat treatment path again, gives simultaneously 20 times of drawing-offs, and enters rapidly 15 ℃ low temperature water-bath path, carries out quenching and processes, and obtaining degree of crystallinity is about 15%, and the degree of orientation is about 70% secondary drafted fibre;
4) the secondary drafted fibre is sent into 85 ℃ of heat treatment paths of temperature, given simultaneously 20 times of drawing-offs, enter rapidly 10 ℃ of liquid nitrogen cold wind paths and carry out the quenching processing, obtain polyethylene filament amorphous, high orientation.
That infra-red sepectrometry harmony modulus method records respectively is amorphous, the polyethylene filament of high orientation, and degree of crystallinity is less than 5%, and the degree of orientation is greater than 95%.
Embodiment 2:
Adopt the high density polyethylene (HDPE) raw material, utilize repeatedly hot drawing-off and quenching treatment technology, prepare a kind of method of amorphous, highly oriented polyethylene long filament, comprise the following steps:
1) with the high density polyethylene (HDPE) master batch, through the melt spinning machine hopper, by the spinning head ejection, and with 4 times of drawing-offs, obtaining degree of crystallinity is about 65%, and the degree of orientation is 15% left and right sides spun filament;
Described polyethylene master batch molecular weight is 200,000; The temperature of respectively distinguishing of described melt spinning machine is controlled at respectively 145 ℃, 155 ℃, 175 ℃, 190 ℃;
5) spun filament of spinning head ejection being sent into temperature is 90 ℃ heat treatment path, gives simultaneously 8 times of drawing-offs, and enters rapidly 20 ℃ low temperature water-bath path, carries out quenching and processes, and obtaining degree of crystallinity is 45%, and the degree of orientation is 40% drafted fibre;
6) drafted fibre being sent into temperature is 90 ℃ heat treatment path again, gives simultaneously 25 times of drawing-offs, and enters rapidly 20 ℃ low temperature water-bath path, carries out quenching and processes, and obtaining degree of crystallinity is about 25%, and the degree of orientation is 65% secondary drafted fibre;
7) the secondary drafted fibre is sent into 90 ℃ of heat treatment paths of temperature, given simultaneously 20 times of drawing-offs, enter rapidly 15 ℃ of liquid nitrogen cold wind paths and carry out the quenching processing, obtain polyethylene filament amorphous, high orientation.
That infra-red sepectrometry harmony modulus method records respectively is amorphous, the polyethylene filament of high orientation, and degree of crystallinity is less than 8%, and the degree of orientation is greater than 90%.
Embodiment 3:
Adopt the high density polyethylene (HDPE) raw material, utilize repeatedly hot drawing-off and quenching treatment technology, prepare a kind of method of amorphous, highly oriented polyethylene long filament, comprise the following steps:
1) with the high density polyethylene (HDPE) master batch, through the melt spinning machine hopper, by the spinning head ejection, and with 5 times of drawing-offs, obtaining degree of crystallinity is about 70%, and the degree of orientation is about 15% spun filament;
Described polyethylene master batch molecular weight is 500,000; The temperature of respectively distinguishing of described melt spinning machine is controlled at respectively 150 ℃, 170 ℃, 180 ℃, 210 ℃;
8) spun filament of spinning head ejection being sent into temperature is 80 ℃ heat treatment path, gives simultaneously 5 times of drawing-offs, and enters rapidly 13 ℃ low temperature water-bath path, carries out quenching and processes, and obtaining degree of crystallinity is about 50%, and the degree of orientation is about 30% drafted fibres;
9) drafted fibre being sent into temperature is 80 ℃ heat treatment path again, gives simultaneously 40 times of drawing-offs, and enters rapidly 13 ℃ low temperature water-bath path, carries out quenching and processes, and obtaining degree of crystallinity is about 20%, and the degree of orientation is about 70% secondary drafted fibre;
10) the secondary drafted fibre being sent into temperature is three drawing-offs in 90 ℃ of heat treatment paths, gives simultaneously 20 times of drawing-offs, enters rapidly 10 ℃ of liquid nitrogen cold wind paths and carries out the quenching processing, obtains polyethylene filament amorphous, high orientation.
That infra-red sepectrometry harmony modulus method records respectively is amorphous, the polyethylene filament of high orientation, and degree of crystallinity is less than 10%, and the degree of orientation is greater than 90%.
Claims (5)
1. the preparation method of amorphous, a highly oriented polyethylene long filament is characterized in that comprising the following steps:
1) with the high density polyethylene (HDPE) master batch, through the melt spinning machine hopper, by the spinning head ejection, and with 3～5 times of drawing-offs, obtains spun filament;
2) spun filament is sent into the heat treatment path, after a drawing-off, entered rapidly 0 ℃～20 ℃ quenching environment;
3) drafted fibre is sent into equivalent environment heat treatment path again through the secondary drawing-off, again enter rapidly 0 ℃～20 ℃ quenching environment;
4) the secondary drafted fibre is sent into three drawing-offs in heat treatment path, entered rapidly-15 ℃～-10 ℃ cold treatment environment;
Described step 2), step 3) and step 4) heat treatment path temperature are 80～110 ℃.
2. the preparation method of amorphous, highly oriented polyethylene long filament according to claim 1, it is characterized in that: described high density polyethylene (HDPE) molecular weight is between 50,000 to 500,000.
3. the preparation method of amorphous, highly oriented polyethylene long filament according to claim 1, it is characterized in that: in the described step 1) melt spinning, the temperature of respectively distinguishing of melt spinning machine is controlled at respectively 140～150 ℃, 145～170 ℃, 155～190 ℃, 175～210 ℃.
4. the preparation method of amorphous, highly oriented polyethylene long filament according to claim 1 is characterized in that: described step 2) and step 3) quenching environment be low temperature water-bath path.
5. the preparation method of a kind of amorphous, high orientation special fibre according to claim 1, it is characterized in that: described step 4) cold treatment environment is liquid nitrogen cold wind path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364242.XA CN102864506B (en) | 2012-09-26 | 2012-09-26 | The preparation method of amorphous, highly oriented polyethylene long filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210364242.XA CN102864506B (en) | 2012-09-26 | 2012-09-26 | The preparation method of amorphous, highly oriented polyethylene long filament |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102864506A true CN102864506A (en) | 2013-01-09 |
| CN102864506B CN102864506B (en) | 2016-05-11 |
Family
ID=47443627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210364242.XA Expired - Fee Related CN102864506B (en) | 2012-09-26 | 2012-09-26 | The preparation method of amorphous, highly oriented polyethylene long filament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102864506B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350945A2 (en) * | 1988-07-15 | 1990-01-17 | E.I. Du Pont De Nemours And Company | Process for making monofilaments with high tenacity and high tensile uniformity |
| JPH08269811A (en) * | 1995-03-31 | 1996-10-15 | Polymer Processing Res Inst | Production of highly heat-resistant polymer filament |
| EP1185728B1 (en) * | 1999-05-14 | 2003-12-10 | Zimmer Aktiengesellschaft | Method for producing ultra-fine synthetic yarns |
| CN101352159A (en) * | 2007-07-26 | 2009-01-28 | 中国水产科学研究院东海水产研究所 | Abrasion-proof energy-saving polyethylene fishing net |
| CN101851797A (en) * | 2009-03-31 | 2010-10-06 | 中国水产科学研究院东海水产研究所 | Method for preparing fishing flexible blended and modified polyethylene monofilaments |
| CN101967691A (en) * | 2010-09-21 | 2011-02-09 | 中国科学院宁波材料技术与工程研究所 | Hot drafting method for ultra-high molecular weight polyethylene strands |
| CN102517672A (en) * | 2011-11-09 | 2012-06-27 | 武汉纺织大学 | Preparation method for high-modulus and high-tensile-resilience special fiber |
| CN102644126A (en) * | 2012-04-23 | 2012-08-22 | 江苏纺科新复合材料有限公司 | Preparation method for high-strength polyethylene fibers with net structures |
-
2012
- 2012-09-26 CN CN201210364242.XA patent/CN102864506B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0350945A2 (en) * | 1988-07-15 | 1990-01-17 | E.I. Du Pont De Nemours And Company | Process for making monofilaments with high tenacity and high tensile uniformity |
| JPH08269811A (en) * | 1995-03-31 | 1996-10-15 | Polymer Processing Res Inst | Production of highly heat-resistant polymer filament |
| EP1185728B1 (en) * | 1999-05-14 | 2003-12-10 | Zimmer Aktiengesellschaft | Method for producing ultra-fine synthetic yarns |
| CN101352159A (en) * | 2007-07-26 | 2009-01-28 | 中国水产科学研究院东海水产研究所 | Abrasion-proof energy-saving polyethylene fishing net |
| CN101851797A (en) * | 2009-03-31 | 2010-10-06 | 中国水产科学研究院东海水产研究所 | Method for preparing fishing flexible blended and modified polyethylene monofilaments |
| CN101967691A (en) * | 2010-09-21 | 2011-02-09 | 中国科学院宁波材料技术与工程研究所 | Hot drafting method for ultra-high molecular weight polyethylene strands |
| CN102517672A (en) * | 2011-11-09 | 2012-06-27 | 武汉纺织大学 | Preparation method for high-modulus and high-tensile-resilience special fiber |
| CN102644126A (en) * | 2012-04-23 | 2012-08-22 | 江苏纺科新复合材料有限公司 | Preparation method for high-strength polyethylene fibers with net structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102864506B (en) | 2016-05-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102560732B (en) | Manufacturing technology for far-infrared polyester short fibers | |
| CN104088031B (en) | Multi-functional nylon-6 fiber and manufacture method thereof | |
| CN103114346B (en) | A kind of have colored terylene filament of diamond flash effect and preparation method thereof | |
| CN102002769A (en) | Preparation method of ultra-high molecular weight polyethylene fiber | |
| CN102634863B (en) | Constant-pressure positive ion dyeable cooling polyester filament yarn and production method thereof | |
| CN102011201B (en) | Melt-spinning method for polyformaldehyde fibers | |
| CN102517675A (en) | Production technique of three-dimensional curly hollow polyester staple fibers | |
| CN101962819A (en) | Ultrawhite ultrahigh-molecular weight ultrahigh-modulus polyethylene fibers and preparation process thereof | |
| CN107574507B (en) | Three-dimensional crimped elastic fiber and preparation method thereof | |
| CN101736416A (en) | Preparation process for fine denier and superfine denier polypropylene fibers | |
| CN101857981A (en) | Process for producing nanometer bamboo carbon fiber by adopting polylactic acid group | |
| CN106012054B (en) | A kind of biology base nylon fibre and preparation method thereof | |
| CN106637480A (en) | Preparation method of high-shrinkage fiber | |
| CN102839432A (en) | Preparation method of ultra-high-speed spinning polyester pre-oriented yarn | |
| CN105274637A (en) | Injected melt direct-spinning production process for PET-PTT composite elastic fibers | |
| CN106757428B (en) | A kind of preparation method of modified composite short fiber | |
| CN103590140B (en) | A kind of imitative multiple polyisocyanate of linen look is combined short fibre and manufacture method thereof | |
| CN104480555A (en) | Production process of high-elasticity-feature terylene pre-oriented fibers | |
| CN102839442B (en) | High-strength low-shrinkage polypropylene filament yarn and production method thereof | |
| CN101812738A (en) | Preparation method of super bright super-simulation profiled PET (Polyethylene Terephthalate) fiber | |
| CN109234883A (en) | 6 high strength yarn multistage drafting device and method of polyamide fibre | |
| CN102644126A (en) | Preparation method for high-strength polyethylene fibers with net structures | |
| CN102517672B (en) | Preparation method for high-modulus and high-tensile-resilience special fiber | |
| CN102864506A (en) | Preparation method of amorphous high-oriented polyethylene filament | |
| CN103993383A (en) | Flax-like skin-core composite fiber and preparation method thereof |
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: 20160511 Termination date: 20180926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |