CN106555245A - A kind of cut resistant superhigh molecular weight polyethylene fibers and its preparation method and application - Google Patents
A kind of cut resistant superhigh molecular weight polyethylene fibers and its preparation method and application Download PDFInfo
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- CN106555245A CN106555245A CN201510616997.8A CN201510616997A CN106555245A CN 106555245 A CN106555245 A CN 106555245A CN 201510616997 A CN201510616997 A CN 201510616997A CN 106555245 A CN106555245 A CN 106555245A
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Abstract
The invention provides a kind of cut resistant superhigh molecular weight polyethylene fibers and its preparation method and application, the cut resistant superhigh molecular weight polyethylene fibers include：Superhigh molecular weight polyethylene fibers；The hard fibre being dispersed in the superhigh molecular weight polyethylene fibers and solvent naphtha；The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and solvent naphtha is 100：(3～6)：(0.3～2).Compared with prior art, the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided are on the basis of belt cutting-resisting property EN388 Pyatyi standards are met, by immersional wetting of the solvent naphtha to hard fibre, make hard fibre preferably compatible with ultra-high molecular weight polyethylene, simultaneously, the addition of solvent naphtha is conducive to hard fibre being uniformly distributed in ultra-high molecular weight polyethylene, makes finished fiber have higher elongation at break.
Description
Technical field
The present invention relates to superhigh molecular weight polyethylene fibers technical field, more specifically, is to be related to one kind
Cut resistant superhigh molecular weight polyethylene fibers and its preparation method and application.
Background technology
Superhigh molecular weight polyethylene fibers, also known as high-strength high-modulus polyethylene fiber, refer to by relative molecular weight
The spun next fiber of polyethylene more than 1,000,000.As superhigh molecular weight polyethylene fibers have quality
Gently, impact resistance, the advantages of dielectric properties are high, be widely used in aerospace field, marine site defence field,
Weaponry field and daily industrial circle.
In daily industrial circle, superhigh molecular weight polyethylene fibers are most commonly employed to prepare with cut resistant work(
The product of energy, for example, cut resistant gloves, cut resistant tent, cut resistant rope etc..But, only by gathering
The belt cutting-resisting property of superhigh molecular weight polyethylene fibers prepared by ethylene powder is limited, the industry being made from it
The belt cutting-resisting property of glove is only capable of reaching the three-level of industrial gloves protection European standard EN388 standard and requires；And
By being added to glass fibre, require can the Pyatyi that belt cutting-resisting property reaches EN388 standards, but
As the pliability and comfortableness of glass fibre are poor, practical application is unsatisfactory.Therefore, answer actual
Use it is more point to exploitation it is a kind of can reach the requirement of EN388 Pyatyis, while and the superelevation of soft comfortable point
Sub- weight polyethylene fiber, for preparing the products such as industrial gloves.
At present, people are by improving the many-sides such as dispensing, the spinning technique of superhigh molecular weight polyethylene fibers
Improve the belt cutting-resisting property of finished fiber.Patent documentation US5976998 discloses a kind of filled cut-resistant fiber,
Hard filler of the fiber by fibre-forming polymer and Moh's scale number more than 3 is made.But, due to what is used
The granularity of hard filler is little, consumption is few, and hard filler is difficult in superhigh molecular weight polyethylene fibers
Net distribution, therefore the cutting resistance of superhigh molecular weight polyethylene fibers that the method is obtained do not had
The improvement of effect.
Patent documentation WO2008046476 discloses a kind of cut resistant yarn, and which includes silk thread and/or fixed length
The hard component of fiber, described silk thread and/or staple fibre comprising the cutting resistance for being used to improve yarn,
Wherein described hard component is many hard fibres that average diameter is 25 μm to the maximum.Although the method is obtained
The cutting resistance of superhigh molecular weight polyethylene fibers be effectively improved, but, due to hard component
With less particle diameter and larger specific surface area, hard component inherently easily occurs to reunite, and due to
Spinning liquid has viscosity, is difficult to be uniformly dispersed when hard component is mixed with spinning liquid, causes finished product
The elongation at break of fiber is relatively low.
The content of the invention
In view of this, it is an object of the invention to provide a kind of cut resistant superhigh molecular weight polyethylene fibers and
Its preparation method and application, the extension at break of the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided
Rate is high.
The invention provides a kind of cut resistant superhigh molecular weight polyethylene fibers, including：
Superhigh molecular weight polyethylene fibers；
The hard fibre being dispersed in the superhigh molecular weight polyethylene fibers and solvent naphtha；
The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and solvent naphtha is 100：(3～6)：
(0.3～2).
Preferably, the weight average molecular weight of the superhigh molecular weight polyethylene fibers is 3.0 × 106～5 × 106,
Molecular weight distribution≤9.0.
Preferably, the hard fibre include one kind in ceramic fibre, carbon fiber and silicon carbide whisker or
It is various.
Preferably, the average diameter of the hard fibre is less than or equal to 9 μm more than 0, and draw ratio is more than 0
Less than or equal to 30.
Preferably, the solvent naphtha by 70%～95% the cycloalkane containing 25～50 carbon atoms and
5%～30% composition of the chain hydrocarbon containing 25～50 carbon atoms.
Present invention also offers the cut resistant superhigh molecular weight polyethylene fibers described in a kind of above-mentioned technical proposal
Preparation method, comprise the following steps：
A) hard fibre and solvent naphtha are mixed, obtains mixed liquor A；
B) mixed liquor A is mixed with ultra-high molecular weight polyethylene lysate, obtains spinning solution；
C) spinning solution is carried out successively spinning, preliminary draft, extraction, drying, screening and positive drawing-off,
Obtain cut resistant superhigh molecular weight polyethylene fibers.
Preferably, the mass ratio of hard fibre, solvent naphtha and solvent naphtha described in step a) is (3～6)：
(10～24).
Preferably, described in step b), ultra-high molecular weight polyethylene lysate includes：
100 weight portion of ultra-high molecular weight polyethylene；
800 weight portion～2800 weight portion of solvent naphtha.
Preferably, the process for spinning described in step c) is specially：
The spinning solution is carried out successively filter, spray webbing and cooling, obtain gel fiber.
Present invention also offers the cut resistant superhigh molecular weight polyethylene fibers described in a kind of above-mentioned technical proposal
As the application of cut resistant material.
The invention provides a kind of cut resistant superhigh molecular weight polyethylene fibers and its preparation method and application,
The cut resistant superhigh molecular weight polyethylene fibers include：Superhigh molecular weight polyethylene fibers；It is dispersed in institute
State the hard fibre and solvent naphtha in superhigh molecular weight polyethylene fibers；The ultra-high molecular weight polyethylene is fine
The mass ratio of dimension, hard fibre and solvent naphtha is 100：(3～6)：(0.3～2).With prior art phase
Than the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided are meeting belt cutting-resisting property EN388 five
On the basis of level standard, by immersional wetting of the solvent naphtha to hard fibre, hard fibre is made with superelevation point
Sub- weight northylen is preferably compatible, meanwhile, the addition of solvent naphtha is conducive to hard fibre in super high molecular weight
Being uniformly distributed in polyethylene, makes finished fiber have higher elongation at break.Test result indicate that,
The elongation at break of the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided is 4%～5%.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme is clearly and completely described,
Obviously, described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.
Based on the embodiment in the present invention, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of protection of the invention.
The invention provides a kind of cut resistant superhigh molecular weight polyethylene fibers, including：
Superhigh molecular weight polyethylene fibers；
The hard fibre being dispersed in the superhigh molecular weight polyethylene fibers and solvent naphtha；
The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and solvent naphtha is 100：(3～6)：
(0.3～2).
In the present invention, the weight average molecular weight of the superhigh molecular weight polyethylene fibers is preferably 3.0 × 106～5
×106, more preferably 3.5 × 106～4.5 × 106；The molecular weight of the superhigh molecular weight polyethylene fibers point
Cloth is preferably≤9.0, more preferably 5.0.In the present invention, the superhigh molecular weight polyethylene fibers are described
The matrix of cut resistant superhigh molecular weight polyethylene fibers, with higher structural regularity and consistency, from
And make the product integrally mechanical property with high-strength and high-modulus amount.
In the present invention, the hard fibre is preferably included in ceramic fibre, carbon fiber and silicon carbide whisker
One or more, the more preferably mixture of ceramic fibre, carbon fiber and silicon carbide whisker.At this
In bright, the hard fibre is the reinforcing material of the cut resistant superhigh molecular weight polyethylene fibers, can
The intensity of finished fiber is effectively improved, product belt cutting-resisting property is improved；The present invention is to the hard fibre
Source is not particularly limited, using above-mentioned ceramic fibre well known to those skilled in the art, carbon fiber and carbon
The commercial goods of SiClx whisker.In the present invention, the ceramic fibre, carbon fiber and silicon carbide whisker
In the mixture of palpus, the mass ratio of ceramic fibre, carbon fiber and silicon carbide whisker is preferably 1：(7～8.8)：
(0.2～1), more preferably 1：(7.3～8.4)：(0.25～0.8), most preferably 1：(7.5～8)：
(0.3～0.5).In the present invention, the average diameter of the hard fibre preferably greater than 0 is less than or equal to 9
μm, more preferably greater than 0 is less than or equal to 7 μm；The draw ratio of the hard fibre preferably greater than 0 is less than
20 are less than or equal to equal to 30, more preferably greater than 0.
In the present invention, the solvent naphtha preferably by 70%～95% the cycloalkane containing 25～50 carbon atoms
With 5%～30% composition of the chain hydrocarbon containing 25～50 carbon atoms, more preferably by 85%～90% containing 25～50
The cycloalkane of individual carbon atom and 10%～15% containing 25～50 carbon atoms chain hydrocarbon composition, most preferably in vain
Oil.In the present invention, the kinematic viscosity of the solvent naphtha is preferably 61.2mm2/ s～74.8mm2/s；This
The bright source to the solvent naphtha is not particularly limited, using 5# white oils well known to those skilled in the art,
7# white oils, 10# white oils, 15# white oils, 22# white oils, 26# white oils, 32# white oils, 46# white oils, 68# are white
The commercial goods of oil, 70# white oils, 100# white oils and 150# white oils.In the present invention, the solvent
Oil plays a part of to strengthen infiltration to hard fibre, makes hard fibre preferably and ultra-high molecular weight polyethylene
Bonded, meanwhile, the addition of solvent naphtha is conducive to hard fibre equal in ultra-high molecular weight polyethylene
Even distribution, makes finished fiber have higher elongation at break.
In the present invention, the mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and solvent naphtha
For 100：(3～6)：(0.3～2), preferably 100：(4～5)：(0.8～1).
Present invention also offers the cut resistant superhigh molecular weight polyethylene fibers described in a kind of above-mentioned technical proposal
Preparation method, comprise the following steps：
A) hard fibre and solvent naphtha are mixed, obtains mixed liquor A；
B) mixed liquor A is mixed with ultra-high molecular weight polyethylene lysate, obtains spinning solution；
C) spinning solution is carried out successively spinning, preliminary draft, extraction, drying, positive drawing-off and screening,
Obtain cut resistant superhigh molecular weight polyethylene fibers.
In the present invention, hard fibre and solvent naphtha are mixed, obtains mixed liquor A.In the present invention,
The hard fibre preferably includes one or more in ceramic fibre, carbon fiber and silicon carbide whisker, more
The preferably mixture of ceramic fibre, carbon fiber and silicon carbide whisker.In the present invention, the hard is fine
The reinforcing material for the cut resistant superhigh molecular weight polyethylene fibers is tieed up, finished fiber can be effectively improved
Intensity, improve product belt cutting-resisting property；The present invention is not particularly limited to the source of the hard fibre,
Using the commercial goods of above-mentioned ceramic fibre well known to those skilled in the art, carbon fiber and silicon carbide whisker
.In the present invention, in the mixture of the ceramic fibre, carbon fiber and silicon carbide whisker, ceramics are fine
The mass ratio of dimension, carbon fiber and silicon carbide whisker is preferably 1：(7～8.8)：(0.2～1), more preferably
For 1：(7.3～8.4)：(0.25～0.8), most preferably 1：(7.5～8)：(0.3～0.5).
In the present invention, the average diameter of the hard fibre is preferably greater than 0 and is less than or equal to 9 μm, more preferably
7 μm are less than or equal to more than 0；The draw ratio of the hard fibre is preferably greater than 0 and is less than or equal to 30, more
Preferably greater than 0 is less than or equal to 20.
In the present invention, the solvent naphtha preferably by 70%～95% the cycloalkane containing 25～50 carbon atoms
With 5%～30% composition of the chain hydrocarbon containing 25～50 carbon atoms, more preferably by 85%～90% containing 25～50
The cycloalkane of individual carbon atom and 10%～15% containing 25～50 carbon atoms chain hydrocarbon composition, most preferably in vain
Oil.In the present invention, the kinematic viscosity of the solvent naphtha is preferably 61.2mm2/ s～74.8mm2/s；This
The bright source to the solvent naphtha is not particularly limited, using 5# white oils well known to those skilled in the art,
7# white oils, 10# white oils, 15# white oils, 22# white oils, 26# white oils, 32# white oils, 46# white oils, 68# are white
The commercial goods of oil, 70# white oils, 100# white oils and 150# white oils.In the present invention, the solvent
Solvent of the oil for ultra-high molecular weight polyethylene lysate, the present invention first will be hard fibre and solvent naphtha uniform
It is dispersed in solvent naphtha, is conducive to hard fibre and solvent naphtha entering in superhigh molecular weight polyethylene fibers
One step is disperseed.
In the present invention, after by hard fibre and solvent naphtha mixing, the motion of the mixed solution A for obtaining is glued
Degree can change according to the addition of hard fibre, the mechanical property of product be had an impact, addition mistake
Height, the kinematic viscosity of mixed solution A are reduced, and can make product broken end number increase, and addition is too low, unfavorable
In the raising of fibre strength, the cutting resistance and intensity decreases of product are made.In the present invention, it is hard is fine
The mixing of dimension, solvent naphtha and solvent naphtha；The mass ratio of the hard fibre and solvent naphtha is preferably (3～6)：
(10～24), more preferably (4～5)：(14～20).
In the present invention, the process of the mixing is preferably specially：
Hard fibre and solvent naphtha are mixed under conditions of stirring.Side of the present invention to the stirring
Method is not particularly limited, using manual stirring well known to those skilled in the art or mechanical agitation.
In the present invention, the speed of the stirring is preferably 1000rpm～4500rpm, more preferably
2000rpm～3000rpm；The present invention was not particularly limited to the time stirred, and made hard fibre in solvent naphtha
In be uniformly dispersed.
After obtaining the mixed liquor A, the mixed liquor A is dissolved by the present invention with ultra-high molecular weight polyethylene
Liquid mixes, and obtains spinning solution.In the present invention, the ultra-high molecular weight polyethylene lysate is preferably wrapped
Include：
100 weight portion of ultra-high molecular weight polyethylene；
800 weight portion～2800 weight portion of solvent naphtha.
In the present invention, the ultra-high molecular weight polyethylene by ultra-high molecular weight polyethylene powder described molten
Obtain after dissolving in agent oil；The present invention does not have special limit to the source of the ultra-high molecular weight polyethylene powder
System, using commercial goods well known to those skilled in the art.In the present invention, the supra polymer
The weight average molecular weight of weight northylen powder is preferably 3.0 × 106～5 × 106, more preferably 3.5 × 106～4.5
×106；The molecular weight distribution of the ultra-high molecular weight polyethylene powder is preferably≤9.0, more preferably 5.0；
The particle diameter of the ultra-high molecular weight polyethylene powder is preferably 40 mesh～100 mesh, more preferably 60 mesh～80
Mesh.In the present invention, the ultra-high molecular weight polyethylene lysate preferably includes ultra-high molecular weight polyethylene
100 weight portions.
In the present invention, the solvent naphtha preferably by 70%～95% the cycloalkane containing 25～50 carbon atoms
With 5%～30% composition of the chain hydrocarbon containing 25～50 carbon atoms, more preferably by 85%～90% containing 25～50
The cycloalkane of individual carbon atom and 10%～15% containing 25～50 carbon atoms chain hydrocarbon composition, most preferably in vain
Oil.In the present invention, the initial boiling point of the solvent naphtha is higher than 450 DEG C；The kinematic viscosity of the solvent naphtha is excellent
Elect 61.2mm as2/ s～74.8mm2/s；The present invention is not particularly limited to the source of the solvent naphtha, is adopted
5# white oils well known to those skilled in the art, 7# white oils, 10# white oils, 15# white oils, 22# white oils, 26#
White oil, 32# white oils, 46# white oils, 68# white oils, 70# white oils, 100# white oils and 150# white oils it is commercially available
Commodity.In the present invention, the solvent naphtha in the ultra-high molecular weight polyethylene lysate is mixed with described
The solvent naphtha closed in solution A is preferably identical solvent naphtha, is conducive to the ultra-high molecular weight polyethylene molten
Solution liquid is miscible with the mixed solution A.In the present invention, the ultra-high molecular weight polyethylene lysate
Preferably include 800 weight portion～2800 weight portion of solvent naphtha, more preferably 1100 weight portion～2000 weight
Part.
In the present invention, the preparation method of the ultra-high molecular weight polyethylene lysate is preferably specially：
Ultra-high molecular weight polyethylene powder is mixed with solvent naphtha, ultra-high molecular weight polyethylene lysate is obtained.
In the present invention, it is described that the process that ultra-high molecular weight polyethylene powder is mixed with solvent naphtha is preferably specially：
Ultra-high molecular weight polyethylene powder is added in solvent naphtha, is stirred, obtain super high molecular weight
Polyethylene lysate.The present invention is not particularly limited to the method for the stirring, using people in the art
Manual stirring or mechanical agitation known to member.In the present invention, the speed of the stirring is preferably
30rpm～500rpm, more preferably 60rpm～100rpm；The temperature of the stirring is preferably 80 DEG C～120
DEG C, more preferably 100 DEG C～110 DEG C；The time of the stirring is preferably 0.5h～5h, more preferably 1h～2h.
In the present invention, the mixed liquor A is mixed with ultra-high molecular weight polyethylene lysate, is spun
Silk stock solution.In the present invention, the mistake that mixed liquor A is mixed with ultra-high molecular weight polyethylene lysate
Cheng Youxuan is specially：
Mixed liquor A is added in ultra-high molecular weight polyethylene lysate, is stirred, obtain spinning former
Liquid.The present invention is not particularly limited to the method for the stirring, using people well known to those skilled in the art
Work is stirred or mechanical agitation.In the present invention, the speed of the stirring is preferably 60rpm～100rpm,
More preferably 80rpm～90rpm；The temperature of the stirring is preferably 100 DEG C～160 DEG C, and more preferably 120
DEG C～140 DEG C；The time of the stirring is preferably 1h～6h, more preferably 2h～3h.
After obtaining spinning solution, the spinning solution is carried out spinning by the present invention successively, preliminary draft, extraction,
It is dried, screens and positive drawing-off, obtains cut resistant superhigh molecular weight polyethylene fibers.In the present invention, will
Spinning solution is spinned, and obtains gel fiber.In the present invention, the process of the spinning is preferably specially：
The spinning solution is carried out successively filter, spray webbing and cooling, obtain gel fiber.In the present invention,
The spinning solution is filtered.The present invention is not particularly limited to the equipment of the filtration, is preferably adopted
Use filter；The aperture of the filter is preferably 30 mesh～100 mesh, more preferably 60 mesh～70 mesh.
After completing the filter process, the spinning solution after filtration is carried out spray webbing and cooling by the present invention, is obtained
To gel fiber.In the present invention, the equipment of the spray webbing is preferably manifold, and the present invention does not have spy to this
It is different to limit；The product that the present invention will be obtained Jing after manifold spray webbing, is directly cooled down, is obtained gel fiber.
The present invention is not particularly limited to the method for the cooling, it is preferred to use water well known to those skilled in the art
The technical scheme of bath cooling；The temperature of the water-bath cooling is preferably 20 DEG C～30 DEG C, more preferably 22 DEG C
～25 DEG C.
After completing the spinning process, the gel fiber obtained after spinning is carried out preliminary draft by the present invention.At this
In invention, the preliminary draft can reduce the internal stress of gel fiber internal residual.In the present invention, it is described
The draft ratio of preliminary draft is preferably 1～10 times, more preferably 3～5 times；The temperature of the preliminary draft is preferred
For 20 DEG C～30 DEG C, more preferably 25 DEG C.
After completing the preliminary draft process, the gel fiber after preliminary draft is extracted and is dried by the present invention.
In the present invention, the purpose of the extraction is to remove the solvent naphtha in gel fiber.In the present invention, it is described
Extractant used by extraction process is preferably in white oil extractant, normal hexane, gasoline and tetrahydro carbon
Plant or various.In the present invention, the extractant has good intermiscibility to solvent naphtha, and the present invention is right
The source of the extractant is not particularly limited, and is extracted using above-mentioned white oil well known to those skilled in the art
The commercial goods of agent, normal hexane, gasoline and tetrahydro carbon.In the present invention, the mesh of the drying
Be to make extractant volatilize.In the present invention, the temperature of the drying is preferably 25 DEG C～45 DEG C, more preferably
For 30 DEG C～40 DEG C.
After completing the extraction and dry run, extraction and dried gel fiber are screened by the present invention.
In the present invention, the purpose of the screening is the content for controlling the solvent naphtha in gel fiber；The present invention is to institute
The method for stating screening is not particularly limited, using concentration detection method well known to those skilled in the art.
In the present invention, the solvent naphtha plays a part of to strengthen infiltration to hard fibre, makes hard fibre and surpasses
High molecular weight polyethylene is preferably compatible, meanwhile, the addition of solvent naphtha is conducive to hard fibre in superelevation point
Being uniformly distributed in sub- weight northylen, enable the pulling force in follow-up positive drafting process it is continuous in gel fiber,
Uniformly transfer, improve draft ratio, finally make finished fiber that there is higher elongation at break, improve into
The paracentesis resistance of product fiber；But, solvent oil content can excessively make in positive drafting process hard fibre with it is super
There is larger relative movement between High molecular weight polyethylene, make finished fiber that fracture to occur.In the present invention
In, the mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and solvent naphtha is 100：(3～6)：
(0.3～2), preferably 100：(3～6)：(0.8～1).
After completing the screening process, the gel fiber after screening is carried out positive drawing-off by the present invention, obtains resistance to cutting
Cut superhigh molecular weight polyethylene fibers.In the present invention, the temperature of the positive drawing-off is preferably 120 DEG C～160
DEG C, more preferably 140 DEG C～150 DEG C；The draft ratio of the positive drawing-off is preferably 7～30 times, more preferably
For 15～20 times.In the present invention, the positive drawing-off can make fiber deform, and obtain finished fiber,
The fibre deformation speed is had a major impact to the mechanical property of product, and the deformation velocity of such as fruit fiber is too fast,
Then there is fracture in fiber before enough draft ratios are reached, and the deformation velocity of fiber is excessively slow, then drawing
During stretching, strand relaxes, and cannot get high strength fibre.In the present invention, the deformation speed of the fiber
Degree is preferably 0.005s-1～0.5s-1, more preferably 0.01s-1～0.1s-1。
Present invention also offers the cut resistant superhigh molecular weight polyethylene fibers described in a kind of above-mentioned technical proposal
As the application of cut resistant material.In the present invention, the cut resistant material is with cut resistant function
Product, preferably cut resistant yarn.The present invention does not have special limit to the preparation method of the cut resistant yarn
System, the method processed using yarn well known to those skilled in the art.In the present invention, it is described resistance to
Chopped strands can obtain different types of cut resistant product by knitting or braiding, such as cut resistant gloves,
Cut resistant tent, cut resistant rope etc..
The invention provides a kind of cut resistant superhigh molecular weight polyethylene fibers and its preparation method and application,
The cut resistant superhigh molecular weight polyethylene fibers include：Superhigh molecular weight polyethylene fibers；It is dispersed in institute
State the hard fibre and solvent naphtha in superhigh molecular weight polyethylene fibers；The ultra-high molecular weight polyethylene is fine
The mass ratio of dimension, hard fibre and solvent naphtha is 100：(3～6)：(1～3).Compared with prior art,
The cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided are meeting belt cutting-resisting property EN388 Pyatyi marks
On the basis of standard, by immersional wetting of the solvent naphtha to hard fibre, make hard fibre preferably and superelevation
Molecular weight polyethylene is bonded, meanwhile, the addition of solvent naphtha is conducive to hard fibre in super high molecular weight
Being uniformly distributed in polyethylene, makes finished fiber have higher elongation at break.Test result indicate that,
The elongation at break of the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided is 4%～5%.
Additionally, the uniformity of the cut resistant superhigh molecular weight polyethylene fibers of present invention offer is preferably, quality
Stability is high, and obtained industrial gloves belt cutting-resisting property is excellent.
In order to further illustrate the present invention, it is described in detail below by following examples.The present invention with
Ultra-high molecular weight polyethylene powder used by lower embodiment is provided by Yanshan Petrochemical；Ceramic fibre used is by mountain
Eastern Luyang limited company provides, and the average diameter of the ceramic fibre is less than or equal to 9 μm, draw ratio
Less than or equal to 30；Carbon fiber used multiple Condor carbon fiber company limited by provides, the carbon fiber it is flat
Diameter is less than or equal to 9 μm, and draw ratio is less than or equal to 30；Silicon carbide whisker used is high by one promise of Qinhuangdao
New material development corporation, Ltd. provides, and the average diameter of the silicon carbide whisker is less than or equal to 9 μm, major diameter
Than less than or equal to 30；White oil used is provided by Total SA；White oil extractant used is by the uncommon Leization in Shanghai
Learn company limited to provide.
Embodiment 1
(1) add 1.8kg 68# white 50g ceramic fibres, 375g carbon fibers and 25g silicon carbide whiskers
In oil, it is stirred until homogeneous under 2500rpm, obtains mixed liquor A.
(2) by 10kg weight average molecular weight be 4.2 × 106, the super high molecular weight that molecular weight distribution is 5.0
During polyethylene powders add 160kg 68# white oils, 1.5h is stirred at 80rpm, 105 DEG C, obtain superelevation
Molecular weight polyethylene lysate；Addition step (1) in the ultra-high molecular weight polyethylene lysate again
The mixed liquor A for obtaining, at 85rpm, 130 DEG C stirs 2.5h, obtains spinning solution.
(3) filter that spinning solution via hole diameter is 60 mesh is filtered, then Jing after manifold spray webbing, is produced
Thing water-bath cooling at 25 DEG C, obtains gel fiber；Then the gel fiber is existed with 4 times of draft ratio
Preliminary draft is carried out at 25 DEG C, then Jing after the extraction of white oil extractant, is dried at 40 DEG C, Jing screenings are obtained
68# white oil qualities are the gel fiber of 0.09kg, are finally just carried out with 17 times of draft ratio at 145 DEG C
Drawing-off, the deformation velocity for controlling fiber are 0.020s-1, obtain cut resistant superhigh molecular weight polyethylene fibers.
Embodiment 2
(1) add 1.4kg 68# white 50g ceramic fibres, 385g carbon fibers and 15g silicon carbide whiskers
In oil, it is stirred until homogeneous under 2000rpm, obtains mixed liquor A.
(2) by 10kg weight average molecular weight be 3.5 × 106, the super high molecular weight that molecular weight distribution is 5.0
During polyethylene powders add 110kg 68# white oils, 2h is stirred at 60rpm, 100 DEG C, obtain superelevation point
Sub- weight northylen lysate；In the ultra-high molecular weight polyethylene lysate step (1) is added to obtain again
The mixed liquor A for arriving, at 80rpm, 120 DEG C stirs 3h, obtains spinning solution.
(3) filter that spinning solution via hole diameter is 70 mesh is filtered, then Jing after manifold spray webbing, is produced
Thing water-bath cooling at 22 DEG C, obtains gel fiber；Then the gel fiber is existed with 3 times of draft ratio
Preliminary draft is carried out at 25 DEG C, then Jing after the extraction of white oil extractant, is dried at 40 DEG C, Jing screenings are obtained
68# white oil qualities are the gel fiber of 0.09kg, are finally just carried out with 18 times of draft ratio at 140 DEG C
Drawing-off, the deformation velocity for controlling fiber are 0.025s-1, obtain cut resistant superhigh molecular weight polyethylene fibers.
Embodiment 3
(1) add 2.0kg 68# white 56g ceramic fibres, 417g carbon fibers and 28g silicon carbide whiskers
In oil, it is stirred until homogeneous at 3,000 rpm, obtains mixed liquor A.
(2) by 10kg weight average molecular weight be 4.5 × 106, the super high molecular weight that molecular weight distribution is 5.0
During polyethylene powders add 200kg 68# white oils, 1h is stirred at 100rpm, 110 DEG C, obtain superelevation
Molecular weight polyethylene lysate；Addition step (1) in the ultra-high molecular weight polyethylene lysate again
The mixed liquor A for obtaining, at 90rpm, 140 DEG C stirs 2h, obtains spinning solution.
(3) filter that spinning solution via hole diameter is 60 mesh is filtered, then Jing after manifold spray webbing, is produced
Thing water-bath cooling at 25 DEG C, obtains gel fiber；Then the gel fiber is existed with 6 times of draft ratio
Preliminary draft is carried out at 25 DEG C, then Jing after the extraction of white oil extractant, is dried at 40 DEG C, Jing screenings are obtained
68# white oil qualities are the gel fiber of 0.1kg, are finally just carried out with 15 times of draft ratio at 150 DEG C
Drawing-off, the deformation velocity for controlling fiber are 0.0118s-1, obtain cut resistant superhigh molecular weight polyethylene fibers.
Embodiment 4
(1) 450g ceramic fibres are added in 1.8kg 68# white oils, are stirred until homogeneous under 2500rpm,
Obtain mixed liquor A.
(2) by 10kg weight average molecular weight be 4.2 × 106, the super high molecular weight that molecular weight distribution is 5.0
During polyethylene powders add 160kg 68# white oils, 1.5h is stirred at 80rpm, 105 DEG C, obtain superelevation
Molecular weight polyethylene lysate；Addition step (1) in the ultra-high molecular weight polyethylene lysate again
The mixed liquor A for obtaining, at 85rpm, 130 DEG C stirs 2.5h, obtains spinning solution.
(3) filter that spinning solution via hole diameter is 60 mesh is filtered, then Jing after manifold spray webbing, is produced
Thing water-bath cooling at 25 DEG C, obtains gel fiber；Then the gel fiber is existed with 4 times of draft ratio
Preliminary draft is carried out at 25 DEG C, then Jing after the extraction of white oil extractant, is dried at 30 DEG C, Jing screenings are obtained
68# white oil qualities are the gel fiber of 0.08kg, are finally just carried out with 20 times of draft ratio at 145 DEG C
Drawing-off, the deformation velocity for controlling fiber are 0.020s-1, obtain cut resistant superhigh molecular weight polyethylene fibers.
Embodiment 5
(1) 450g carbon fibers are added in 1.8kg 68# white oils, are stirred until homogeneous under 2500rpm,
Obtain mixed liquor A.
(2) by 10kg weight average molecular weight be 4.2 × 106, the super high molecular weight that molecular weight distribution is 5.0
During polyethylene powders add 160kg 68# white oils, 1.5h is stirred at 80rpm, 105 DEG C, obtain superelevation
Molecular weight polyethylene lysate；Addition step (1) in the ultra-high molecular weight polyethylene lysate again
The mixed liquor A for obtaining, at 85rpm, 130 DEG C stirs 2.5h, obtains spinning solution.
(3) filter that spinning solution via hole diameter is 60 mesh is filtered, then Jing after manifold spray webbing, is produced
Thing water-bath cooling at 25 DEG C, obtains gel fiber；Then the gel fiber is existed with 4 times of draft ratio
Preliminary draft is carried out at 25 DEG C, then Jing after the extraction of white oil extractant, is dried at 30 DEG C, Jing screenings are obtained
68# white oil qualities are the gel fiber of 0.03kg, are finally just carried out with 7 times of draft ratio at 145 DEG C
Drawing-off, the deformation velocity for controlling fiber are 0.020s-1, obtain cut resistant superhigh molecular weight polyethylene fibers.
Embodiment 6
(1) will stir under 2500rpm to equal during 450g silicon carbide whiskers add 1.8kg 68# white oils
It is even, obtain mixed liquor A.
(2) by 10kg weight average molecular weight be 4.2 × 106, the super high molecular weight that molecular weight distribution is 5.0
During polyethylene powders add 160kg 68# white oils, 1.5h is stirred at 80rpm, 105 DEG C, obtain superelevation
Molecular weight polyethylene lysate；Addition step (1) in the ultra-high molecular weight polyethylene lysate again
The mixed liquor A for obtaining, at 85rpm, 130 DEG C stirs 2.5h, obtains spinning solution.
(3) filter that spinning solution via hole diameter is 60 mesh is filtered, then Jing after manifold spray webbing, is produced
Thing water-bath cooling at 25 DEG C, obtains gel fiber；Then the gel fiber is existed with 4 times of draft ratio
Preliminary draft is carried out at 25 DEG C, then Jing after the extraction of white oil extractant, is dried at 30 DEG C, Jing screenings are obtained
68# white oil qualities are the gel fiber of 0.2kg, are finally just carried out with 28 times of draft ratio at 145 DEG C
Drawing-off, the deformation velocity for controlling fiber are 0.020s-1, obtain cut resistant superhigh molecular weight polyethylene fibers.
Using DXLL-20000 electronic tensile machines according to specified in GBT 19975-2005 method to reality
Fibre strength, modulus and the extension at break of the cut resistant superhigh molecular weight polyethylene fibers of the offer of example 1～6 are provided
Rate is tested, the cut resistant superelevation point provided to embodiment 1～6 using YG086 types measuring reel
The fiber number of sub- weight polyethylene fiber is tested, and the number that breaks end, the broken end number are obtained during silk is connect
It is expressed as the every myriametre broken end number of finished fiber.Test result is as shown in table 1.
The fibre strength data of the cut resistant superhigh molecular weight polyethylene fibers that 1 embodiment of table 1～6 is provided
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| Intensity (cN/dtex) | 25.8 | 25.5 | 26.5 | 25.5 | 25.2 | 26.8 |
| Modulus (cN/dtex) | 900 | 912 | 970 | 875 | 871 | 961 |
| Fiber number (denier) | 512.5 | 490.5 | 629 | 612.5 | 335.5 | 645.5 |
| Elongation at break (%) | 5.0 | 4.8 | 4.9 | 4.1 | 4.9 | 4.0 |
| Broken end number (individual/myriametre) | 0.5 | 0.6 | 1.3 | 0.8 | 1.5 | 1.1 |
Cut resistant superhigh molecular weight polyethylene fibers embodiment 1～6 provided using Instron types puller system
Change rate of strength tested, while using YG086 types measuring reel to embodiment 1～6 provide
The cut resistant superhigh molecular weight polyethylene fibers difference substantial amounts of fiber number data of follow-on test, then by side
Difference calculates fiber number coefficient of variation CV value, and test result is as shown in table 2.
The change rate of strength data of the cut resistant superhigh molecular weight polyethylene fibers that 2 embodiment of table 1～6 is provided
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| Change rate of strength | 3.1% | 3.3% | 4.0% | 4.5% | 4.8% | 5.0% |
| Fiber number coefficient of variation CV | 1.0% | 0.9% | 1.4% | 1.2% | 1.3% | 1.5% |
Test result shows that the cut resistant superhigh molecular weight polyethylene fibers that the embodiment of the present invention 1～6 is provided have
There is higher fibre strength, while the change rate of strength of finished fiber is relatively low, i.e., strength stability is good；This
Outward, product fiber number coefficient of variation CV is relatively low, while product elongation at break is stable, broken end number is relatively low, from
And ensure that product has preferable uniformity and quality stability.
The cut resistant superhigh molecular weight polyethylene fibers that Example 1～6 is provided, respectively along bobbin by positive and negative
Direction winds, and makes the cut resistant yarn of 400D, then above-mentioned cut resistant yarn is carried out coating, woven,
Respectively obtain cut resistant industrial gloves.European standard EN388 standard, opponent is protected to pack into according to industrial gloves
Row anti-cut performance test, measurement wear out number of times, take two samples every time, measure five times, according to coefficient
Calculate meansigma methodss.Test result is as shown in table 3.
The cut resistant superhigh molecular weight polyethylene fibers belt cutting-resisting property data that 3 embodiment of table 1～6 is provided
| Cutting resistance (secondary) | EN388 Pyatyi standards | |
| Embodiment 1 | 25 | It is cutting resistance >=20 times |
| Embodiment 2 | 23 | It is cutting resistance >=20 times |
| Embodiment 3 | 28 | It is cutting resistance >=20 times |
| Embodiment 4 | 23 | It is cutting resistance >=20 times |
| Embodiment 5 | 21 | It is cutting resistance >=20 times |
| Embodiment 6 | 25 | It is cutting resistance >=20 times |
As shown in Table 3, the present invention provide cut resistant superhigh molecular weight polyethylene fibers belt cutting-resisting property compared with
Good, obtained glove can reach EN388 Pyatyi standards.
The described above of the disclosed embodiments, enables professional and technical personnel in the field to realize or using this
Invention.Various modifications to these embodiments will be apparent for those skilled in the art
, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. a kind of cut resistant superhigh molecular weight polyethylene fibers, it is characterised in that include：
Superhigh molecular weight polyethylene fibers；
The hard fibre being dispersed in the superhigh molecular weight polyethylene fibers and solvent naphtha；
The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and solvent naphtha is 100：(3～6)：
(0.3～2).
2. cut resistant superhigh molecular weight polyethylene fibers according to claim 1, it is characterised in that
The weight average molecular weight of the superhigh molecular weight polyethylene fibers is 3.0 × 106～5 × 106, molecular weight distribution≤
9.0。
3. cut resistant superhigh molecular weight polyethylene fibers according to claim 1, it is characterised in that
The hard fibre includes one or more in ceramic fibre, carbon fiber and silicon carbide whisker.
4. cut resistant superhigh molecular weight polyethylene fibers according to claim 1, it is characterised in that
The average diameter of the hard fibre is less than or equal to 9 μm more than 0, and draw ratio is less than or equal to 30 more than 0.
5. cut resistant superhigh molecular weight polyethylene fibers according to claim 1, it is characterised in that
The solvent naphtha by 70%～95% the cycloalkane containing 25～50 carbon atoms and 5%～30% containing 25～50
The chain hydrocarbon composition of individual carbon atom.
6. the preparation of the cut resistant superhigh molecular weight polyethylene fibers described in a kind of any one of Claims 1 to 5
Method, it is characterised in that comprise the following steps：
A) hard fibre and solvent naphtha are mixed, obtains mixed liquor A；
B) mixed liquor A is mixed with ultra-high molecular weight polyethylene lysate, obtains spinning solution；
C) spinning solution is carried out successively spinning, preliminary draft, extraction, drying, screening and positive drawing-off,
Obtain cut resistant superhigh molecular weight polyethylene fibers.
7. preparation method according to claim 6, it is characterised in that hard described in step a)
The mass ratio of fiber and solvent naphtha is (3～6)：(10～24).
8. preparation method according to claim 6, it is characterised in that superelevation described in step b)
Molecular weight polyethylene lysate includes：
100 weight portion of ultra-high molecular weight polyethylene；
800 weight portion～2800 weight portion of solvent naphtha.
9. preparation method according to claim 6, it is characterised in that spin described in step c)
Process be specially：
The spinning solution is carried out successively filter, spray webbing and cooling, obtain gel fiber.
10. the cut resistant superhigh molecular weight polyethylene fibers conduct described in a kind of any one of Claims 1 to 5
The application of cut resistant material.
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