CN106555243A - 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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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 hard fibre slag；The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and hard fibre slag is 100：(3～6)：(0.001～0.18).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, hard fibre is made to be more evenly distributed in ultra-high molecular weight polyethylene by adding hard fibre slag, so that finished fiber has higher intensity homogeneity, while improving the rub resistance of finished fiber.
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 makes finished product fine
The intensity homogeneity of dimension is poor, and as hard component is the larger threadiness of draw ratio, parallel to fibre
Rub resistance on dimension direction is not high, and aggregate performance is that quality stability is poor.
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 even intensity of the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided
Property good and rub resistance it 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 hard fibre slag；
The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and hard fibre slag is 100：
(3～6)：(0.001～0.18).
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 mean diameter of the hard fibre slag is 30 μm～50 μm.
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, hard fibre slag 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 and positive drawing-off, obtain
Cut resistant superhigh molecular weight polyethylene fibers.
Preferably, solvent naphtha described in step a) by 70%～95% the cycloalkanes containing 25～50 carbon atoms
Hydrocarbon and 5%～30% containing 25～50 carbon atoms chain hydrocarbon composition.
Preferably, described in step a), the mass ratio of hard fibre, hard fibre slag and solvent naphtha is
(3～6)：(0.001～0.18)：(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.
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 hard fibre slag in superhigh molecular weight polyethylene fibers；The super high molecular weight is gathered
The mass ratio of vinyl fiber, hard fibre and hard fibre slag is 100：(3～6)：(0.001～0.18).
Compared with prior art, the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided are meeting cut resistant
On the basis of performance EN388 Pyatyi standard, hard fibre is made in superelevation point by adding hard fibre slag
It is more evenly distributed in sub- weight northylen, so that finished fiber has higher intensity homogeneity, while carrying
The rub resistance of high finished fiber.Test result indicate that, the cut resistant super high molecular weight that the present invention is provided is gathered
The change rate of strength of vinyl fiber is less than 5%, and rub resistance can reach more than 120,000 times.
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 hard fibre slag；
The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and hard fibre slag is 100：
(3～6)：(0.001～0.18).
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 hard fibre slag is the by-product that produces in hard fibre preparation process,
Its composition is identical with hard fibre；Fibre forming viscosity scope one of the fiber forming process of the hard fibre from melt
Moment rises to fragility range of viscosities, obtains fibrous hard fibre, meanwhile, small part melt is unchanged
Into threadiness and become granulate, it is block or bar-shaped, obtain non-fibrous material, i.e. hard fibre slag；By
It is different from the density of hard fibre slag in hard fibre, can be by hard fibre and hard using sedimentation
Fiber slag is separated.In the present invention, the separation method of the hard fibre and hard fibre slag
It is preferred that being specially：
Hard fibre is dispersed in petroleum ether, 5min after stirring 0.5h, is stood, then will with 270 mesh slurry net
Hard fibre takes out, and in triplicate, respectively obtains hard fibre and hard fibre slag.In the present invention,
The hard fibre slag can make the hard fibre be more evenly distributed in ultra-high molecular weight polyethylene,
Slow down stress concentration effect, prevention fine fisssure that hard fibre is present with ultra-high molecular weight polyethylene interface simultaneously
Stricture of vagina extends.In the present invention, the mean diameter of the hard fibre slag is preferably 30 μm～50 μm,
More preferably 35 μm～45 μm.
In the present invention, the mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and slag is
100：(3～6)：(0.001～0.18), preferably 100：(4～5)：(0.018～0.09), more
Preferably 100：4.5：0.027.
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, hard fibre slag 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 and positive drawing-off, obtain
Cut resistant superhigh molecular weight polyethylene fibers.
In the present invention, hard fibre, hard fibre slag and solvent naphtha are mixed, obtains mixed liquor A.
In the present invention, the hard fibre preferably includes in ceramic fibre, carbon fiber and silicon carbide whisker
Plant or various, more preferably the mixture of ceramic fibre, carbon fiber and silicon carbide whisker.In the present invention,
The hard fibre is the reinforcing material of the cut resistant superhigh molecular weight polyethylene fibers, effectively can be changed
The intensity of kind finished fiber, improves product belt cutting-resisting property；The present invention does not have to the source of the hard fibre
There is particular restriction, using above-mentioned ceramic fibre well known to those skilled in the art, carbon fiber and silicon carbide whisker
The commercial goods of palpus.In the present invention, the ceramic fibre, carbon fiber and silicon carbide whisker is mixed
In compound, 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 is preferably greater than 0 and is less than or equal to 9 μm, more preferably
It is to be less than or equal to 7 μm 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 higher than 0 is less than or equal to 20.
In the present invention, the hard fibre slag is the by-product that produces in hard fibre preparation process,
Its composition is identical with hard fibre；Fibre forming viscosity scope one of the fiber forming process of the hard fibre from melt
Moment rises to fragility range of viscosities, obtains fibrous hard fibre, meanwhile, small part melt is unchanged
Into threadiness and become granulate, it is block or bar-shaped, obtain non-fibrous material, i.e. hard fibre slag；By
It is different from the density of hard fibre slag in hard fibre, can be by hard fibre and hard using sedimentation
Fiber slag is separated.In the present invention, the separation method of the hard fibre and hard fibre slag
It is preferred that being specially：
Hard fibre is dispersed in petroleum ether, 5min after stirring 0.5h, is stood, then will with 80 mesh slurry net
Hard fibre takes out, and in triplicate, respectively obtains hard fibre and hard fibre slag.In the present invention,
The hard fibre slag can make the hard fibre be more evenly distributed in ultra-high molecular weight polyethylene,
Slow down stress concentration effect, prevention fine fisssure that hard fibre is present with ultra-high molecular weight polyethylene interface simultaneously
Stricture of vagina extends.In the present invention, the mean diameter of the hard fibre slag is preferably 30 μm～50 μm,
More preferably 35 μm～45 μm.
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 is first by hard fibre and hard fibre ore deposit
Slag is dispersed in solvent naphtha, is conducive to hard fibre and hard fibre slag in superhigh molecular weight polyethylene
Further dispersion in alkene fiber.
In the present invention, after hard fibre, hard fibre slag and solvent naphtha being mixed, the mixing for obtaining
The kinematic viscosity of solution A can change according to the addition of hard fibre and hard fibre slag, to producing
The mechanical property of product has an impact, and addition is too high, and the kinematic viscosity of mixed solution A is reduced, and can make product
Broken end number increase, addition is too low, is unfavorable for the raising of fibre strength, makes the cutting resistance of product and strong
Degree is reduced.In the present invention, hard fibre, hard fibre slag and solvent naphtha are mixed；The hard
The mass ratio of fiber, hard fibre slag and solvent naphtha is preferably (3～6)：(0.001～0.18)：(10～24),
More preferably (4～5)：(0.018～0.09)：(14～20).
In the present invention, the process of the mixing is preferably specially：
Hard fibre, slag and solvent naphtha are mixed under conditions of stirring.The present invention is stirred to described
The method mixed is not particularly limited, equal using manual stirring well known to those skilled in the art or mechanical agitation
Can.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 and slag exist
It is uniformly dispersed in solvent naphtha.
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 and positive drawing-off, obtains cut resistant superhigh molecular weight polyethylene fibers.In the present invention, it is spinning is former
Liquid 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 just led by the present invention
Stretch, obtain cut resistant superhigh molecular weight polyethylene fibers.In the present invention, the temperature of the positive drawing-off is excellent
Elect 120 DEG C～160 DEG C as, more preferably 140 DEG C～150 DEG C；The draft ratio of the positive drawing-off is preferably
4～20 times, more preferably 6～10 times.In the present invention, the positive drawing-off can make fiber deform,
Finished fiber is obtained, the fibre deformation speed is had a major impact to the mechanical property of product, such as fruit fiber
Deformation velocity it is too fast, then there is fracture, and the deformation of fiber in fiber before enough draft ratios are reached
Speed is excessively slow, then crystallize relatively slowly in drawing process, and crystal zone formation is not fine and close continuous, cannot get high intensity
Fiber.In the present invention, the deformation velocity of the fiber 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 hard fibre slag in superhigh molecular weight polyethylene fibers；The super high molecular weight is gathered
The mass ratio of vinyl fiber, hard fibre and hard fibre slag is 100：(3～6)：(0.001～0.18).
Compared with prior art, the cut resistant superhigh molecular weight polyethylene fibers that the present invention is provided are meeting cut resistant
On the basis of performance EN388 Pyatyi standard, hard fibre is made in superelevation point by adding hard fibre slag
It is more evenly distributed in sub- weight northylen, so that finished fiber has higher intensity homogeneity, while carrying
The rub resistance of high finished fiber.Test result indicate that, the cut resistant super high molecular weight that the present invention is provided is gathered
The change rate of strength of vinyl fiber is less than 5%, and rub resistance can reach more than 120,000 times.
Additionally, the present invention provide cut resistant superhigh molecular weight polyethylene fibers elongation at break it is higher and
Broken end number is relatively low, and 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；The mean diameter of hard fibre slag used is 35 μm～45 μm；White oil used by
Total SA provides；White oil extractant used is provided by Shanghai Xi Le Chemical Co., Ltd.s.
Embodiment 1
(1) by 50g ceramic fibres, 375g carbon fibers, 25g silicon carbide whiskers and 2.7g hard fibres
During slag adds 1.8kg 68# white oils, 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, finally at 145 DEG C
Under positive drawing-off is carried out with 7 times of draft ratio, control fiber deformation velocity be 0.020s-1, obtain resistance to cutting
Cut superhigh molecular weight polyethylene fibers.
Embodiment 2
(1) by 50g ceramic fibres, 385g carbon fibers, 15g silicon carbide whiskers and 1.8g hard fibres
During slag adds 1.4kg 68# white oils, 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 5 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, finally at 140 DEG C
Under positive drawing-off is carried out with 6 times of draft ratio, control fiber deformation velocity be 0.025s-1, obtain resistance to cutting
Cut superhigh molecular weight polyethylene fibers.
Embodiment 3
(1) by 56g ceramic fibres, 417g carbon fibers, 28g silicon carbide whiskers and 9g hard fibre ore deposits
During slag adds 2.0kg 68# white oils, 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 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, finally at 150 DEG C
Under positive drawing-off is carried out with 8 times of draft ratio, control fiber deformation velocity be 0.0118s-1, obtain resistance to
Cutting superhigh molecular weight polyethylene fibers.
Embodiment 4
(1) 450g ceramic fibres and 2.7g hard fibres slag are added in 1.8kg 68# white oils,
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 30 DEG C, finally at 145 DEG C
Under positive drawing-off is carried out with 7 times of draft ratio, control fiber deformation velocity be 0.020s-1, obtain resistance to cutting
Cut superhigh molecular weight polyethylene fibers.
Embodiment 5
(1) 450g carbon fibers and 2.7g hard fibres slag are added in 1.8kg 68# white oils,
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 30 DEG C, finally at 145 DEG C
Under positive drawing-off is carried out with 7 times of draft ratio, control fiber deformation velocity be 0.020s-1, obtain resistance to cutting
Cut superhigh molecular weight polyethylene fibers.
Embodiment 6
(1) 450g silicon carbide whiskers and 2.7g hard fibres slag are added in 1.8kg 68# white oils,
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 30 DEG C, finally at 145 DEG C
Under positive drawing-off is carried out with 7 times of draft ratio, control fiber deformation velocity be 0.020s-1, obtain resistance to cutting
Cut 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) | 26.8 | 26.7 | 26.5 | 25.5 | 25.1 | 24.8 |
| Modulus (cN/dtex) | 987 | 980 | 977 | 880 | 860 | 833 |
| Fiber number (denier) | 401.5 | 396 | 440 | 419 | 412.5 | 429 |
| Elongation at break (%) | 4.5 | 4.3 | 4.0 | 3.8 | 3.8 | 3.2 |
| Broken end number (individual/myriametre) | 1.4 | 1.3 | 1.0 | 1.2 | 1.0 | 1.3 |
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 | 3.0% | 3.2% | 3.8% | 4.1% | 4.6% | 5.0% |
| Fiber number coefficient of variation CV | 0.5% | 0.8% | 0.8% | 1.0% | 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
Calculating is averaged；According to wear-resistant method of testing B in yarn test method (JISL1095), to reality
The cut resistant yarn for applying the 400D of the offer of example 1～6 carries out rub resistance test, using the hard of a diameter of 0.9mm
Matter steel carries out CONTACT WITH FRICTION, represents rub resistance by testing sample is rubbed to the reciprocal time for rupturing,
Measurement is averaged for three times, and test condition is as follows：Load is 0.5g/D, and friction speed is 115 beats/min, past
Multiple move distance is 2.5cm, and rubbing angle is 110 °.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) | Rub resistance (secondary) | EN388 Pyatyi standards | |
| Embodiment 1 | 29 | 153553 | It is cutting resistance >=20 times |
| Embodiment 2 | 27 | 131110 | It is cutting resistance >=20 times |
| Embodiment 3 | 25 | 109048 | It is cutting resistance >=20 times |
| Embodiment 4 | 25 | 107400 | It is cutting resistance >=20 times |
| Embodiment 5 | 22 | 82692 | It is cutting resistance >=20 times |
| Embodiment 6 | 21 | 80210 | 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, while rub resistance is higher.
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 hard fibre slag；
The mass ratio of the superhigh molecular weight polyethylene fibers, hard fibre and hard fibre slag is 100：
(3～6)：(0.001～0.18).
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 mean diameter of the hard fibre slag is 30 μm～50 μm.
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, hard fibre slag 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 and positive drawing-off, obtain
Cut resistant superhigh molecular weight polyethylene fibers.
7. preparation method according to claim 6, it is characterised in that solvent described in step a)
Oil by 70%～95% the cycloalkane containing 25～50 carbon atoms and 5%～30% containing 25～50 carbon atoms
Chain hydrocarbon composition.
8. preparation method according to claim 6, it is characterised in that hard described in step a)
The mass ratio of fiber, hard fibre slag and solvent naphtha is (3～6)：(0.001～0.18)：(10～24).
9. 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.
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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| CN109610029A (en) * | 2017-09-30 | 2019-04-12 | 中国石化仪征化纤有限责任公司 | Fiber, fabric and preparation method thereof |
| AU2019400153A1 (en) * | 2019-07-18 | 2021-02-04 | Xingyu Safety Protection Technology Co., Ltd | Ultra-high molecular weight polyethylene fiber with ultra-high cut resistance and preparation method thereof |
| JP7468972B2 (en) | 2017-07-14 | 2024-04-16 | アビエント プロテクティブ マテリアルズ ビー． ブイ． | Uniform filled yarn |
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