CN104419996A - Production method of ultrahigh molecular weight polyethylene fiber - Google Patents
Production method of ultrahigh molecular weight polyethylene fiber Download PDFInfo
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- CN104419996A CN104419996A CN201310362671.8A CN201310362671A CN104419996A CN 104419996 A CN104419996 A CN 104419996A CN 201310362671 A CN201310362671 A CN 201310362671A CN 104419996 A CN104419996 A CN 104419996A
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Abstract
The invention discloses a production method of an excellent solvent of ultrahigh molecular weight polyethylene and a fiber thereof. The production method is characterized in that the ultrahigh molecular weight polyethylene can be dissolved in the solvent at a temperature being lower than a decomposition temperature of the ultrahigh molecular weight polyethylene to form a homogeneous solution, thereby reducing a macromolecule degradation degree in a dissolving and untwisting process of the ultrahigh molecular weight polyethylene and meanwhile increasing homogeneity of a formed jelly solution to ensure homogeneity and spinnability of primary precursor fibers during a production process of an ultrahigh molecular weight polyethylene fiber. Compared with other spinning solvents and spinning methods, the production method and the solvent in the invention can enable a solvent mass content in the primary precursor fibers to be not more than 2%, breaking strength of the ultrahigh molecular weight polyethylene fiber to be increased by 7-11% and a breaking modulus to be increased by 17-42%.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of fine solvent of ultra-high molecular weight polyethylene and the production method of fiber thereof.
Background technology
Superhigh molecular weight polyethylene fibers is the synthetic fiber with high strength and high-modulus adopting the ultra-high molecular weight polyethylene of molecular weight more than 1,000,000 to manufacture.At present in the world ultra-high molecular weight polyethylene, carbon fiber and aramid fiber are called three large high performance fibre material, wherein superhigh molecular weight polyethylene fibers has that intensity is high, modulus is high, quality is light, resistance to light intensity, abrasion resistance high, to play in national defence, military project, Aero-Space and important effect, have also been obtained at civil area and apply more and more widely.
1979, first DSM N. V. of Holland has applied for the patent (NL7900990, NL7904990) that superhigh molecular weight polyethylene fibers manufactures, in decades subsequently, define with 2 kinds of main solution spinning processes: dry spinning and wet spinning, the difference part of the two is spin solvent under spinning temperature in volatility (dry spinning) or non-volatile (wet spinning).The Toyobo company of Holland DSM and Japan is the representative of dry spinning, and Honeywell Corp. USA is then the representative of wet spinning.Two kinds of spinning process have all applied for a large amount of patents about superhigh molecular weight polyethylene fibers production technology, the Patents of dry spinning has US200580048947.9, CN 1439752A and CN 101821435 A etc., and the Patents of wet spinning has CN 101821435 A, USP4413110 and USP4663101 etc.
From the eighties in last century; China is in the research and development starting superhigh molecular weight polyethylene fibers; China Textile Academy and Deng Duojia research unit of China Textile University expand decahydronaphthalene, kerosene, white oil, the research of superhigh molecular weight polyethylene fibers of paraffin oil equal solvent system and industrialization development work respectively; obtain relevant patent (CN 1400342A, CN1590608A, CN1056544A, CN 101122051A etc.), and achieve large-scale production by companies such as Thailand, Ningbo great achievements in Yizheng Fiber Optical plant and Hunan.
Although both at home and abroad about a patent nearly hundreds of section for superhigh molecular weight polyethylene fibers, but all lay particular emphasis on production method and the relevant device aspect of superhigh molecular weight polyethylene fibers, do not find the patent in ultra-high molecular weight polyethylene solvent and supporting fiber production method so far yet.As patent US200580048947.9 disclose a kind of with coordinative solvent reclaim and circulation, spin high molecular poly alpha olefin by the solution had in volatile solvent under spinning temperature, the method for preferred ultra-high molecular weight polyethylene.This patent volatile solvent used is decahydronaphthalene or 1,2-dichloro-benzenes, preferred decahydronaphthalene, but this patent mainly sets forth is solvent recovery process route; Patent CN1590608A discloses a kind of manufacture method of high-tenacity polyethylene fibre, comprises super high molecular polyethylene solution dry spinning process and hot-stretching step.Main employing longitudinal stretching stream of having set forth becomes and solidification combined technology manufacture high-performance polyethylene fibres, while guarantee fiber excellent mechanical performance, shorten technological process, improve production efficiency, reduce equipment investment and production cost, and realize stable, safe suitability for industrialized production.
Melt viscosity due to ultra-high molecular weight polyethylene is high (reaches 10
9pa.s), mobile performance extreme difference, so the production technology that superhigh molecular weight polyethylene fibers generally adopts " gel spinning-ultra-drawing ".This method first becomes spinning solution by dissolution with solvents ultrahigh molecular weight polyethylene, make flexible macromolecular chain under the action of the solvent, remove excessive entanglement, solution extrudes Post RDBMS through spinneret orifice, then obtains high-strength, the high-modulus polyethylene fiber with extended-chain configuration through desolvation and ultra-drawing.
In process of production, ultra-high molecular weight polyethylene dissolving solution in a solvent twines and forms the performance that uniform frozen glue solution directly affects superhigh molecular weight polyethylene fibers superhigh molecular weight polyethylene fibers.Because its dissolving, the solution process of twining are carried out under the condition of high temperature, high shear, its macromolecular chain easily ruptures in course of dissolution, causes the degraded of ultra-high molecular weight polyethylene molecule, causes the performance of superhigh molecular weight polyethylene fibers to reduce; And, ultra-high molecular weight polyethylene course of dissolution is in a solvent very slow: ultra-high molecular weight polyethylene macromolecular chain is very long, not easily move, large intermolecular active force is large, and intermolecular entanglement point is many, after only having certain construction unit to be wherein completely solvated after large molecule contacts with small solvent molecule, but it is still a part for macromolecular chain, pin down the macromolecular motion of whole piece, only have after all unit of the large molecule of whole piece are all completely solvated, just likely integrally split away off from the surface of solid phase and enter solvent formation homogeneous solution.So solvent plays an important role in superhigh molecular weight polyethylene fibers is produced, and affects the performance of process for preparing ultrahigh molecular weight polyethylene fibre and fibre thereof.
Summary of the invention
The object of the present invention is to provide a kind of fine solvent of ultra-high molecular weight polyethylene, ultra-high molecular weight polyethylene is made to be dissolved in solvent lower than below its decomposition temperature, form homogeneous solution, reduce ultra-high molecular weight polyethylene and twine macromolecules degradation degree in process in dissolving solution; Improve institute simultaneously and forms the uniformity of frozen glue solution, the homogeneity of precursor of coming into being in guarantee superhigh molecular weight polyethylene fibers production process and spinnability.
Invention also provides a kind of production method utilizing the fine solvent of ultra-high molecular weight polyethylene to produce superhigh molecular weight polyethylene fibers, improve the mechanical property of superhigh molecular weight polyethylene fibers, improve recycled solvent rate simultaneously.
The fine solvent of ultra-high molecular weight polyethylene of the present invention, is characterized in that described fine solvent is trans-decalin.
Fine solvent of the present invention is used for the production method of superhigh molecular weight polyethylene fibers, comprise ultra-high molecular weight polyethylene dissolving in a solvent and the removal process of solvent, it is characterized in that ultra-high molecular weight polyethylene is dissolved in solvent under lower than the condition of its decomposition temperature, form uniform frozen glue solution, then extrude through spinnerets and form solution thread, circulating cooling wind is adopted to carry out cooling curing to gel spinning in spinning-side blowing casing below spinnerets and path, longitudinal stretching is carried out to fiber simultaneously, form nascent precursor.
Usually, described production method mixes swelling by solvent and ultra-high molecular weight polyethylene in the ratio of 30:1 ~ 5:1, under the condition of 90 DEG C ~ 100 DEG C swelling 2 ~ 4 hours, then double screw extruder is sent into after the ultra-high molecular weight polyethylene suspension after swelling being cooled to normal temperature, under the effect of twin-screw Strong shear power, form uniform super high molecular polyethylene solution, then extrude through spinnerets and obtain solution thread.
The mixed proportion of described solvent and ultra-high molecular weight polyethylene is preferably 20:1 ~ 10:1.
The inlet temperature of described twin-screw is 80 DEG C ~ 100 DEG C, preferably 85 DEG C ~ 95 DEG C, centre is mixing to be controlled below ultra-high molecular weight polyethylene decomposition temperature with outlet melt temperature, wherein the mixing solution temperature of ultra-high molecular weight polyethylene in twin-screw is 100 DEG C ~ 170 DEG C, preferably 115 ~ 155 DEG C, outlet solution temperature is 140 DEG C ~ 155 DEG C, preferably 145 DEG C ~ 149 DEG C.
Circulated air is adopted to carry out cooling curing to gel spinning in the spinning-side blowing casing of the solution thread extruding formation through spinnerets below spinnerets and path, longitudinal stretching is carried out to fiber simultaneously, to prevent the die swell effect of solution when spinnerets is extruded, promote the formation of fiber-wall-element model, crystallization and large molecule straight chain simultaneously, ensure that the nascent precursor formed has certain crystallization and the degree of orientation, and in nascent precursor, solvent quality content is less than 2%.
The gas medium of described circulating cooling wind is inert gas, as carbon dioxide or nitrogen, when its key is to cool strand with circulated air, should ensure fiber cooling curing, also will ensure the recovery utilization rate of solvent simultaneously.For ease of the recycling of solvent, the technological process about organic gas solvent recovery patent CN02137836.3 that applicant invents can be adopted.
Described circulating cooling air temperature controls between 50 DEG C ~ 130 DEG C, preferably 70 DEG C ~ 115 DEG C, and wherein lateral blowing temperature control is between 90 DEG C ~ 130 DEG C, preferably 105 DEG C ~ 115 DEG C, and path wind-warm syndrome controls between 50 DEG C ~ 110 DEG C, preferably 70 DEG C ~ 90 DEG C.
The draw ratio of described longitudinal stretching is 3 ~ 15 times, preferably 6 ~ 10 times.
Solvent for use of the present invention is trans-decalin.Compared to the commodity decahydronaphthalene solvent (ratio of cis-decaline and trans-decalin is generally 4:6) described in existing patent, trans-decalin is except having low melting point, higher boiling, high-volatile feature, simultaneously, because trans-decalin is nonpolar molecule, there is the characteristics such as the solubility parameter close with ultra-high molecular weight polyethylene, low viscosity and stable chemical nature.Ultra-high molecular weight polyethylene can be dissolved in trans-decalin solvent under the condition lower than its decomposition temperature (155 DEG C), reduces ultra-high molecular weight polyethylene and twines macromolecules degradation degree in process in dissolving solution; Improve simultaneously form the uniformity of frozen glue solution, ensure homogeneity and the spinnability of nascent precursor in superhigh molecular weight polyethylene fibers production process, for the recovery of follow-up solution, super drawing obtains high-strength and high-modulus ultrahigh molecular weight polyethylene fibre and lays a good foundation, and is the significant improvement to traditional gel spinning.
The present invention is compared to tradition system gel spinning ultra-high molecular weight polyethylene solvent used, and trans-decalin has high volatile volatile, and the trans-decalin of more than 98% can get off from fiber blowing up by the nitrogen of 80 DEG C, so the temperature of circulated air is lower during solvent recovery.
According to the present invention, by nascent precursor through ultra-drawing, final superhigh molecular weight polyethylene fibers need be obtained, test homogeneity and spinnability that its mechanical property could evaluate nascent precursor more objective, exactly.Therefore, send into hot-stretch device through godet roller and carry out ultra-drawing, ultra-drawing multiple is between 10 ~ 30 times, and draft temperature is between 90 DEG C ~ 150 DEG C.The ultra-drawing of nascent precursor is consistent with conventional ultra high molecular weight polyethylene fiber production method.
Accompanying drawing explanation
Accompanying drawing 1 is the process flow diagram of embodiment of the present invention method.
Detailed description of the invention
Embodiment
In order to understand the present invention further, below in conjunction with embodiment and accompanying drawing, the preferred embodiment of the invention is described, by relatively carrying out outstanding advantage of the present invention.
Embodiment: the present embodiment technical process is shown in accompanying drawing 1, and key step has:
1, ultra-high molecular weight polyethylene is through solvent swell, dissolving, makes spinning frozen glue solution, then extrudes through spinnerets and obtains solution thread.Wherein solvent for use is trans-decalin, trans-decalin solvent and ultra-high molecular weight polyethylene are mixed according to 20:1 ~ 5:1 ratio, under the condition of 90 DEG C ~ 100 DEG C swelling 2 ~ 4 hours, then double screw extruder is sent into after the ultra-high molecular weight polyethylene suspension after swelling being cooled to normal temperature, the inlet temperature of twin-screw 85 DEG C ~ 95 DEG C, middle mixing solution temperature is 115 ~ 155 DEG C, outlet solution temperature is 145 DEG C ~ 149 DEG C, ultra-high molecular weight polyethylene forms uniform super high molecular polyethylene solution under the effect of twin-screw Strong shear power, then extrude through spinnerets and obtain solution thread.
2, the longitudinal stretching of solution thread and cooling curing make the predraft of frozen glue precursor.Circulated air is adopted to carry out cooling curing to gel spinning in the spinning-side blowing casing of the solution thread extruding formation through spinnerets below spinnerets and path, longitudinal stretching is carried out to fiber simultaneously, in nascent precursor, solvent is less than 2%, and draw ratio is 6 ~ 10 times.
The present embodiment solvent recovery inert gas used is nitrogen, and its temperature controls at 70 DEG C ~ 115 DEG C, and wherein lateral blowing temperature control is at 105 DEG C ~ 115 DEG C, and path wind-warm syndrome controls at 70 DEG C ~ 90 DEG C.
According to the present invention, by nascent precursor through ultra-drawing, final superhigh molecular weight polyethylene fibers need be obtained, test homogeneity and spinnability that its mechanical property could evaluate nascent precursor more objective, exactly.Therefore, send into hot-stretch device through godet roller and carry out ultra-drawing, ultra-drawing multiple is between 10 ~ 30 times, and draft temperature is between 90 DEG C ~ 150 DEG C.The ultra-drawing of nascent precursor is consistent with conventional ultra high molecular weight polyethylene fiber production method.
In the present embodiment, fibrous mechanical property tests as follows: adopt the intensity of DXLL-3000 electronic tensile machine mensuration fiber, modulus and percentage elongation, and test condition is folder distance 500 millimeters, test speed 300 mm/min.
The performance number of each style: the arithmetic average getting 5 test values, namely
formula 1
In formula 1:
: the performance number of each sample
: sample number
Standard deviation (S) adopts following computational methods:
formula 2
Coefficient of dispersion (CV) adopts following computational methods:
formula 3
Representated by symbol in formula 2 and formula 3, meaning is with formula 1.
In order to comparative effectiveness better, in following embodiment and comparative example, employing identical ultra-high molecular weight polyethylene raw material, (weight average molecular weight Mw is 4.25 × 10
6, powder size is 80 orders) and spin finish aid (antioxidant is BHT); Identical spinning technique flow process.The processing parameter of employing different solvents and manufactured fibrous mechanical property are respectively in table 1 and table 2.
Table 1 embodiment and comparative example technological parameter
Table 2 embodiment and comparative example gained fibrous mechanical property
Found by summary analysis 1 and table 2, compared to traditional commodity decahydronaphthalene solvent and cis-decaline solvent, the present invention's trans-decalin solvent used is temperature required low when dissolving ultra-high molecular weight polyethylene, nascent precursor can stretching ratio high, after ultra-drawing, gained superhigh molecular weight polyethylene fibers fiber number is low, mechanical property good; And fracture strength CV is little, illustrate that its ultra-high molecular weight polyethylene dissolves rear gained solution uniformity in trans-decalin solvent good.Also can find that needed for recycling design, circulated air temperature is low simultaneously, and the residual rate in nascent precursor is low, namely solvent recovering rate is high, which reduces the solvent consumption in superhigh molecular weight polyethylene fibers production, reduces the production cost of superhigh molecular weight polyethylene fibers.In sum, gained of the present invention is come into being precursor solvent quality content≤2%, and the fracture strength of superhigh molecular weight polyethylene fibers improves 7 ~ 11%, and rupture modulus improves 17 ~ 42%.
Claims (10)
1. the production method of a superhigh molecular weight polyethylene fibers, comprise ultra-high molecular weight polyethylene dissolving in a solvent and the removal process of solvent, it is characterized in that ultra-high molecular weight polyethylene is dissolved in solvent under lower than the condition of its decomposition temperature, form uniform frozen glue solution, then extrude through spinnerets and form solution thread, circulating cooling wind is adopted to carry out cooling curing to gel spinning in spinning-side blowing casing below spinnerets and path, longitudinal stretching is carried out to fiber simultaneously, form nascent precursor.
2. production method according to claim 1, is characterized in that described solvent is trans-decalin.
3. production method according to claim 1, solvent and ultra-high molecular weight polyethylene is it is characterized in that to mix swelling in the ratio of 30:1 ~ 5:1, under the condition of 90 DEG C ~ 100 DEG C swelling 2 ~ 4 hours, then double screw extruder is sent into after the ultra-high molecular weight polyethylene suspension after swelling being cooled to normal temperature, under the effect of twin-screw Strong shear power, form uniform super high molecular polyethylene solution, then extrude through spinnerets and obtain solution thread.
4. production method according to claim 3, is characterized in that the mixed proportion of described solvent and ultra-high molecular weight polyethylene is 20:1 ~ 10:1.
5. production method according to claim 3, it is characterized in that the inlet temperature of twin-screw is 80 DEG C ~ 100 DEG C, centre is mixing to be controlled below ultra-high molecular weight polyethylene decomposition temperature with outlet melt temperature, wherein the mixing solution temperature of ultra-high molecular weight polyethylene in twin-screw is 100 DEG C ~ 170 DEG C, and outlet solution temperature is 140 DEG C ~ 155 DEG C.
6. production method according to claim 5, it is characterized in that the inlet temperature of twin-screw is 85 DEG C ~ 95 DEG C, wherein the mixing solution temperature of ultra-high molecular weight polyethylene in twin-screw is 115 ~ 155 DEG C, and outlet solution temperature is 145 DEG C ~ 149 DEG C.
7. production method according to claim 2, is characterized in that in nascent precursor, solvent quality content is less than 2%.
8. production method according to claim 1, is characterized in that the gas medium of circulating cooling wind is carbon dioxide or nitrogen.
9. production method according to claim 1, it is characterized in that circulating cooling air temperature controls between 70 DEG C ~ 115 DEG C, wherein lateral blowing temperature control is between 105 DEG C ~ 115 DEG C, and path wind-warm syndrome controls between 70 DEG C ~ 90 DEG C.
10. production method according to claim 1, is characterized in that the draw ratio of longitudinal stretching is 6 ~ 10 times.
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| CN104911722A (en) * | 2015-05-15 | 2015-09-16 | 上海化工研究院 | Method for precursor fiber curing molding during ultrahigh-molecular-weight polyethylene dry spinning |
| CN105002578A (en) * | 2015-05-19 | 2015-10-28 | 上海化工研究院 | Method for separating solid phases from solvent during ultrahigh molecular weight polyethylene dry spinning process |
| CN106149068A (en) * | 2016-08-31 | 2016-11-23 | 华南理工大学 | A kind of superhigh molecular weight polyethylene fibers flat filament and preparation method thereof |
| CN106544741A (en) * | 2015-09-18 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of method for improving superhigh molecular weight polyethylene fibers performance |
| CN106544747A (en) * | 2015-09-23 | 2017-03-29 | 中国石化仪征化纤有限责任公司 | A kind of ultra-high molecular weight polyethylene colored fibers manufacture method |
| CN107090604A (en) * | 2017-05-13 | 2017-08-25 | 巢湖市翔宇渔具有限公司 | A kind of preparation technology of high-strength polythene filament |
| CN107447271A (en) * | 2017-09-13 | 2017-12-08 | 江苏菲霖纤维科技有限公司 | A kind of method that dyeing tubular filament is produced using recycled polyester |
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| CN109898170A (en) * | 2017-12-07 | 2019-06-18 | 旭化成株式会社 | Ultra-high molecular weight polyethylene powder and ultra-high molecular weight polyethylene powder fiber |
| CN110016727A (en) * | 2017-12-14 | 2019-07-16 | 旭化成株式会社 | Ultra-high molecular weight polyethylene powder and ultra high molecular weight polyethylene fiber |
| CN110079881A (en) * | 2019-04-30 | 2019-08-02 | 上海化工研究院有限公司 | A kind of preparation method of environment-friendly, high-intensity high-modulus polyethylene fiber |
| CN110093678A (en) * | 2019-04-30 | 2019-08-06 | 上海化工研究院有限公司 | The method of melt frozen glue and separation of solid and liquid in ultra-high molecular weight polyethylene dry spinning |
| CN112144138A (en) * | 2019-06-26 | 2020-12-29 | 中石化南京化工研究院有限公司 | Method for improving performance of ultra-high molecular weight polyethylene colored fiber and fiber |
| CN112376126A (en) * | 2020-12-09 | 2021-02-19 | 句容市阳光恒瑞材料科技有限公司 | Preparation method of ultrahigh molecular weight polyethylene modified fiber |
| CN112941648A (en) * | 2021-01-26 | 2021-06-11 | 浙江金昊新材料有限公司 | Method for manufacturing high-strength and high-modulus polyethylene fiber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400342A (en) * | 2001-07-30 | 2003-03-05 | 中国石油化工股份有限公司 | Production method of high strength polyethylene fibre and fibre |
| CN1590608A (en) * | 2003-09-03 | 2005-03-09 | 中国石油化工股份有限公司 | Manufacturing method of high strength polyethylene fiber |
| CN101591813A (en) * | 2008-05-27 | 2009-12-02 | 宁波荣溢化纤科技有限公司 | A kind of preparation method of super high molecular polyethylene fiber precursor |
| CN101680124A (en) * | 2007-06-08 | 2010-03-24 | 霍尼韦尔国际公司 | High tenacity polyethylene yarn |
-
2013
- 2013-08-20 CN CN201310362671.8A patent/CN104419996A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400342A (en) * | 2001-07-30 | 2003-03-05 | 中国石油化工股份有限公司 | Production method of high strength polyethylene fibre and fibre |
| CN1590608A (en) * | 2003-09-03 | 2005-03-09 | 中国石油化工股份有限公司 | Manufacturing method of high strength polyethylene fiber |
| CN101680124A (en) * | 2007-06-08 | 2010-03-24 | 霍尼韦尔国际公司 | High tenacity polyethylene yarn |
| CN101591813A (en) * | 2008-05-27 | 2009-12-02 | 宁波荣溢化纤科技有限公司 | A kind of preparation method of super high molecular polyethylene fiber precursor |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104911722A (en) * | 2015-05-15 | 2015-09-16 | 上海化工研究院 | Method for precursor fiber curing molding during ultrahigh-molecular-weight polyethylene dry spinning |
| CN105002578A (en) * | 2015-05-19 | 2015-10-28 | 上海化工研究院 | Method for separating solid phases from solvent during ultrahigh molecular weight polyethylene dry spinning process |
| CN106544741A (en) * | 2015-09-18 | 2017-03-29 | 中国石油化工股份有限公司 | A kind of method for improving superhigh molecular weight polyethylene fibers performance |
| CN106544741B (en) * | 2015-09-18 | 2019-02-22 | 中国石油化工股份有限公司 | A method of improving ultra high molecular weight polyethylene fiber performance |
| CN106544747A (en) * | 2015-09-23 | 2017-03-29 | 中国石化仪征化纤有限责任公司 | A kind of ultra-high molecular weight polyethylene colored fibers manufacture method |
| CN106544747B (en) * | 2015-09-23 | 2018-08-31 | 中国石化仪征化纤有限责任公司 | A kind of ultra-high molecular weight polyethylene colored fibers manufacturing method |
| CN106149068A (en) * | 2016-08-31 | 2016-11-23 | 华南理工大学 | A kind of superhigh molecular weight polyethylene fibers flat filament and preparation method thereof |
| CN107090604A (en) * | 2017-05-13 | 2017-08-25 | 巢湖市翔宇渔具有限公司 | A kind of preparation technology of high-strength polythene filament |
| CN107447271A (en) * | 2017-09-13 | 2017-12-08 | 江苏菲霖纤维科技有限公司 | A kind of method that dyeing tubular filament is produced using recycled polyester |
| CN109666976B (en) * | 2017-10-16 | 2021-04-06 | 中国石油化工股份有限公司 | Method for improving performance of ultra-high molecular weight polyethylene fiber product |
| CN109666976A (en) * | 2017-10-16 | 2019-04-23 | 中国石油化工股份有限公司 | The method for improving ultra high molecular weight polyethylene fiber properties of product |
| CN109898170A (en) * | 2017-12-07 | 2019-06-18 | 旭化成株式会社 | Ultra-high molecular weight polyethylene powder and ultra-high molecular weight polyethylene powder fiber |
| CN109898170B (en) * | 2017-12-07 | 2021-09-14 | 旭化成株式会社 | Ultra-high molecular weight polyethylene powder and ultra-high molecular weight polyethylene powder fiber |
| CN110016727A (en) * | 2017-12-14 | 2019-07-16 | 旭化成株式会社 | Ultra-high molecular weight polyethylene powder and ultra high molecular weight polyethylene fiber |
| CN110016727B (en) * | 2017-12-14 | 2021-09-14 | 旭化成株式会社 | Ultra-high molecular weight polyethylene powder and ultra-high molecular weight polyethylene fiber |
| CN110079881A (en) * | 2019-04-30 | 2019-08-02 | 上海化工研究院有限公司 | A kind of preparation method of environment-friendly, high-intensity high-modulus polyethylene fiber |
| CN110093678A (en) * | 2019-04-30 | 2019-08-06 | 上海化工研究院有限公司 | The method of melt frozen glue and separation of solid and liquid in ultra-high molecular weight polyethylene dry spinning |
| CN110079881B (en) * | 2019-04-30 | 2021-11-23 | 上海化工研究院有限公司 | Preparation method of environment-friendly high-strength high-modulus polyethylene fiber |
| CN112144138A (en) * | 2019-06-26 | 2020-12-29 | 中石化南京化工研究院有限公司 | Method for improving performance of ultra-high molecular weight polyethylene colored fiber and fiber |
| CN112376126A (en) * | 2020-12-09 | 2021-02-19 | 句容市阳光恒瑞材料科技有限公司 | Preparation method of ultrahigh molecular weight polyethylene modified fiber |
| CN112941648A (en) * | 2021-01-26 | 2021-06-11 | 浙江金昊新材料有限公司 | Method for manufacturing high-strength and high-modulus polyethylene fiber |
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Application publication date: 20150318 |