CN104228062A - Unidirectional fabric, non-woven fabric, preparation methods of fabrics and non-woven fabric product - Google Patents
Unidirectional fabric, non-woven fabric, preparation methods of fabrics and non-woven fabric product Download PDFInfo
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- CN104228062A CN104228062A CN201310247170.5A CN201310247170A CN104228062A CN 104228062 A CN104228062 A CN 104228062A CN 201310247170 A CN201310247170 A CN 201310247170A CN 104228062 A CN104228062 A CN 104228062A
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Abstract
The invention provides a unidirectional fabric, a non-woven fabric, preparation methods of the fabrics and a non-woven fabric product. The preparation method of the unidirectional fabric comprises the following steps: sequentially continuously spreading a plurality of ultra high molecular weight polyethylene films or strips along one direction; and connecting the ultra high molecular weight polyethylene films or strips to form a whole body to obtain the unidirectional fabric. The non-woven fabric prepared on the basis of the unidirectional fabric and the product prepared on the basis of the non-woven fabric are high in strength and excellent in bulletproof property; the preparation method are simple and are low in cost.
Description
Technical field
The present invention relates to a kind of chemical fabric, particularly relate to a kind of unidirectional cloth, without latitude cloth and preparation method thereof with without latitude cloth products.
Background technology
Ultra-high molecular weight polyethylene (Ultra High Molecular Weight Polyethylene, be called for short UHMW-PE) be a kind of thermoplastic engineering plastic with Good All-around Property of linear structure, based on this material, make high-intensity fiber is one of its important use.
Ultra-high molecular weight polyethylene (UHMW-PE) fiber is a kind of synthetic fibers, its molecular structure has very high extended parallelization and the degree of orientation, this molecular structure determines superhigh molecular weight polyethylene fibers and has high strength and modulus, and has the advantages such as good chemical stability, corrosion resistance.The above-mentioned characteristic of superhigh molecular weight polyethylene fibers, is better than aramid fiber, is widely used in military affairs, police shellproof protection field, becomes this field and substitutes mainstay material in conventional steel structure bullet resistant material.
The intensity of unidirectional cloth (Uni-Directional Cloth, also referred to as UD cloth) concentrates on a direction.Polylith unidirectional cloth is cross layered by certain angle, can obtain without latitude cloth.At present, superhigh molecular weight polyethylene fibers generally adopt following technique to prepare without latitude cloth: by many superhigh molecular weight polyethylene fibers through the warping technology such as even, parallel, to stretch along a direction marshalling, stick with glue and connect each fiber and obtain unidirectional cloth, multilayer unidirectional cloth is intersected lay successively by 0 degree/90 degree, sticks with glue that to connect each layer unidirectional cloth obtained without latitude cloth.
Unidirectional cloth prepared by above-mentioned existing technique comprises: warping and glued joint many superhigh molecular weight polyethylene fibers being integrated in a certain direction.Because superhigh molecular weight polyethylene fibers is silk fascicular texture, every root superhigh molecular weight polyethylene fibers is independent individual, therefore the warping technology of each fiber is complicated, production cost is high, and the defect such as easily cause fracture of wire, distortion, tangled up and knotted, arrangement uneven in the technical process such as warping, gluing, these defects all carry out effective energy transferring by obstruction unidirectional cloth or without latitude cloth to external force, easily occur the phenomenon that stress is concentrated, and then reduce unidirectional cloth or without the intensity of latitude cloth, the performance such as shellproof.
Summary of the invention
Provide hereinafter about brief overview of the present invention, to provide about the basic comprehension in some of the present invention.Should be appreciated that this general introduction is not summarize about exhaustive of the present invention.It is not that intention determines key of the present invention or pith, and nor is it intended to limit the scope of the present invention.Its object is only provide some concept in simplified form, in this, as the preorder in greater detail discussed after a while.
The invention provides a kind of cost is low, intensity is high unidirectional cloth, without latitude cloth and preparation method thereof with without latitude cloth products.
First aspect, the invention provides a kind of preparation method of unidirectional cloth, comprising:
Multi-disc ultra-high molecular weight polyethylene film or band is sprawled continuously successively along a direction;
Each described ultra-high molecular weight polyethylene film or band are connected as one, obtains described unidirectional cloth.
Alternatively, described each described ultra-high molecular weight polyethylene film or band to be connected as one, comprising:
Described in every two panels, the adjacent regions of ultra high molecular polyethylene film or band is coated with adhesive, is integrated each described ultra-high molecular weight polyethylene film or band to be gluedd joint.
Alternatively, after the adjacent regions of ultra high molecular polyethylene film or band described in every two panels is coated with adhesive, also comprise: dry described adhesive.
Alternatively, dry described adhesive comprises: adopt the 80-120 DEG C of described adhesive of drying.
Alternatively, described in arbitrary neighborhood two panels, ultra-high molecular weight polyethylene film or band are overlapping at least partly; Described each described ultra-high molecular weight polyethylene film or band to be connected as one, comprising: the overlapping portion of ultra-high molecular weight polyethylene film described in arbitrary neighborhood two panels or band to be gluedd joint or hot pressing is integrated.
Alternatively, the controlled condition of described hot pressing comprises: temperature 50-130 DEG C, and/or, pressure 1-15MPa.
Alternatively, described direction is the width of described ultra-high molecular weight polyethylene film or band.
Alternatively, described width is that the strand of vertical described ultra-high molecular weight polyethylene film or band stretches direction.
Alternatively, the relevant parameter of described ultra-high molecular weight polyethylene film at least meet following one or more:
Line density is more than 5000 dawn;
More than width 100mm;
Below thickness 0.2mm;
Fracture strength is more than 10 grams/dawn;
Stretch modulus is more than 800 grams/dawn;
Elongation at break is below 6%.
Alternatively, the relevant parameter of described tapes of ultra high molecular weight polyethylene at least meet following one or more:
Line density is more than 100 dawn;
Width 1-100mm;
Below thickness 0.2mm;
Fracture strength is more than 10 grams/dawn;
Stretch modulus is more than 800 grams/dawn;
Elongation at break is below 6%.
Second aspect, the invention provides a kind of unidirectional cloth, adopts above-mentioned unidirectional cloth preparation method to obtain.
The third aspect, present invention also offers a kind of without latitude cloth preparation method, comprise: polylith unidirectional cloth is intersected successively at an angle laminated being integrated and described without latitude cloth, described unidirectional cloth comprises: sprawl continuously successively along a direction and interconnective multi-disc ultra-high molecular weight polyethylene film or band.
Alternatively, described polylith unidirectional cloth intersects laminated being integrated successively at an angle, comprising: sprawl cross layered at an angle successively for unidirectional cloth described in polylith, and hot pressing or glued joint the overlapping portion of unidirectional cloth described in polylith.
Alternatively, the one side of described unidirectional cloth has adhesive, another side without adhesive; Described any two pieces of adjacent unidirectional cloths to be gluedd joint, comprising: any two pieces of described unidirectional cloths are intersected in the process of compound at an angle, the one side of a unidirectional cloth with adhesive is gluedd joint with the one side of another unidirectional cloth without adhesive.
Alternatively, the intersecting angle of the two layers of unidirectional cloth of arbitrary neighborhood is identical.
Alternatively, described intersecting angle is 0-90 degree.
Alternatively, described intersecting angle is 45 degree or 90 degree.
Alternatively, in each layer unidirectional cloth, at least the intersecting angle of two layers of unidirectional cloth is different with the intersecting angle of other layer of unidirectional cloth.
Alternatively, in first floor unidirectional cloth to last layer unidirectional cloth, the intersecting angle of each adjacent two layers unidirectional cloth increases gradually.
Fourth aspect, present invention also offers a kind of without latitude cloth, adopts above-mentioned obtaining without latitude cloth preparation method.
5th aspect, present invention also offers a kind of without latitude cloth products, adopts above-mentioned obtaining without latitude cloth.
In the embodiment of the present invention, ultra-high molecular weight polyethylene film or band are a kind of thin slices being become by ultrahigh molecular weight polyethylene, have one fixed width and thickness, and width is far longer than thickness, band can be prepared separately or can by the strip thin slice carrying out point cutting process before and after above-mentioned film stretching and formed, the width of band is less than the width of film, and thickness is suitable with film.Ultra-high molecular weight polyethylene film or band itself have certain width and thickness, it is a kind of overall structure not having binding site or cutting line, have that intensity is high, modulus is large, creep properties is little, along film edge direction, there is less stress and concentrate the advantages such as coverage.
The unidirectional cloth that various embodiments of the present invention provide or obtain based on ultra-high molecular weight polyethylene film or band without latitude cloth, tradition is based on the obtained unidirectional cloth of superhigh molecular weight polyethylene fibers or without latitude cloth relatively, without the need to carrying out the loaded down with trivial details technique of warping process respectively to each fiber, also obviously glue consumption is reduced, even glue-free (as can by adjacent ultra-high molecular weight polyethylene film or strip portion overlapping and by hot pressing connection etc.), thus reduce preparation technology causes damage probability to ultra-high molecular weight polyethylene film or interior strips, be conducive to Simplified flowsheet, reduce costs, enhance productivity.
In addition, because ultra-high molecular weight polyethylene film or the large molecule linear chain structure of interior strips are evenly distributed, unidirectional cloth or without film in latitude cloth preparation process or the impaired probability of interior strips lower, inner fracture of wire can not be produced, distortion, tangled up and knotted, arrange the defects such as uneven, and based on the obtained unidirectional cloth of ultra-high molecular weight polyethylene film or band or without latitude cloth when by external impacts, ultra-high molecular weight polyethylene film or band are integrally stressed, rapidly stress point can be diffused as stress surface with effective transferring energy, and then improve unidirectional cloth or the intensity without latitude cloth, improve its barrier propterty such as shellproof.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of a kind of embodiment of unidirectional cloth preparation method provided by the invention.
Fig. 2 is the structural representation of the first embodiment of unidirectional cloth provided by the invention.
Fig. 3 is the structural representation of unidirectional cloth the second embodiment provided by the invention.
Fig. 4 is the structural representation of the third embodiment of unidirectional cloth provided by the invention.
Fig. 5 is the flow chart without a kind of embodiment of latitude cloth preparation method provided by the invention.
Fig. 6 is the structural representation without the first embodiment of latitude cloth provided by the invention.
Fig. 7 is the structural representation without latitude cloth the second embodiment provided by the invention.
Fig. 8 is the structural representation without the third embodiment of latitude cloth provided by the invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The element described in an accompanying drawing of the present invention or a kind of embodiment and feature can combine with the element shown in one or more other accompanying drawing or embodiment and feature.It should be noted that for purposes of clarity, accompanying drawing and eliminate expression and the description of unrelated to the invention, parts known to persons of ordinary skill in the art and process in illustrating.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not paying creative work, all belongs to the scope of protection of the invention.
Ultra-high molecular weight polyethylene is the polyethylene of molecular weight more than 1,000,000.The conventional art of ultra-high molecular weight polyethylene application prepares various product based on ultra high molecular polyethylene fiber.The technical scheme that various embodiments of the present invention provide, the conventional art applied with ultra-high molecular weight polyethylene is essentially different, it is the revolutionary character innovation that conventional art is proposed, substitute ultra-high molecular weight fibers by ultra-high molecular weight polyethylene film or band and carry out unidirectional cloth and without the exploitation of latitude cloth and preparation, its core concept mainly comprises: by ultra-high molecular weight polyethylene film or band, substitute traditional superhigh molecular weight polyethylene fibers, prepare unidirectional cloth and without latitude cloth.
Wherein, ultra-high molecular weight polyethylene film or band are a kind of thin slices being become by ultrahigh molecular weight polyethylene, have one fixed width and thickness, and width is far longer than thickness, band is by the strip thin slice carrying out point cutting process before and after this film stretching and formed, the width of band is less than the width of film, and thickness and film are quite or be greater than the thickness of film.
Ultra-high molecular weight polyethylene film provided by the invention or band, different from superhigh molecular weight polyethylene fibers, from gluedd joint the plane formed by many superhigh molecular weight polyethylene fibers also different, their remarkable difference is: ultra-high molecular weight polyethylene film provided by the invention or band itself have certain width and thickness, is a kind of overall structure not having binding site or cutting line.
The unidirectional cloth that various embodiments of the present invention provide and be obtain based on ultra-high molecular weight polyethylene film or band without latitude cloth.In preparation process, that ultra-high molecular weight polyethylene film or band are integrally processed, structural integrity is good, preparation technology is simple, eliminate the complicated technology that plurality of fibers silk is arranged respectively, the surface significantly reducing film or band produces the probability of burr, and also obviously the probability of the phenomenons such as fracture of wire, distortion, winding appears in reduction film or interior strips.When carrying load, ultra-high molecular weight polyethylene film or band are overall stressed, make this unidirectional cloth and the intensity without latitude cloth higher, effectively improve rate of utilization of strength.Therefore, the unidirectional cloth prepared based on ultra-high molecular weight polyethylene film or band and the intensity without latitude cloth, higher than the product adopting the superhigh molecular weight polyethylene fibers of same Denier to prepare, and the former cost is starkly lower than the latter, there is the advantages such as structural integrity is good, intensity is high, rate of utilization of strength is high, production efficiency is high, processing cost is low, lightweight, surface density is little, flexible.
Below in conjunction with accompanying drawing and for alternate configurations of rigging and preparation method thereof, further illustrate technical scheme of the present invention.
Embodiment one
As shown in Figure 1, a kind of unidirectional cloth preparation method that the present embodiment provides comprises:
Step S101, sprawls multi-disc ultra-high molecular weight polyethylene film or band successively continuously along a direction;
Step S102, connects as one each described ultra-high molecular weight polyethylene film or band, obtains described unidirectional cloth.
The core concept of the present embodiment is: directly replace traditional superhigh molecular weight polyethylene fibers to prepare unidirectional cloth with ultra-high molecular weight polyethylene film or band.
Multi-disc ultra-high molecular weight polyethylene film or band are sprawled successively continuously along the width of ultra-high molecular weight polyethylene film or band, and this width is that the strand of vertical described ultra-high molecular weight polyethylene film or band stretches direction.
In the present embodiment, in order to make ultra-high molecular weight polyethylene film or strip face have higher flatness, optionally, ultra-high molecular weight polyethylene film or band are sprawled by dance roller successively continuously with the drawing tension of≤5g/d.
Particularly, described each described ultra-high molecular weight polyethylene film or band to be connected as one, comprising:
Described in every two panels, the adjacent regions of ultra high molecular polyethylene film or band is coated with adhesive, is integrated each described ultra-high molecular weight polyethylene film or band to be gluedd joint.
Alternatively, described in arbitrary neighborhood two panels, ultra-high molecular weight polyethylene film or band are overlapping at least partly; Adhesive is coated with, compared to traditional without latitude cloth, without the need to lining form at lap, only need at lap gluing, effectively can reduce glue consumption, thus reduce the internal injury of ultra-high molecular weight polyethylene film or band, be conducive to Simplified flowsheet, reduce costs, enhance productivity.
Alternatively, ultra-high molecular weight polyethylene film described in arbitrary neighborhood two panels or band glued joint and non-overlapping copies, the adjacent regions of arbitrary neighborhood two panels ultra-high molecular weight polyethylene film or band is coated with adhesive, two panels ultra-high molecular weight polyethylene film or band are bonded together, the area of ultra-high molecular weight polyethylene film or band can be utilized to greatest extent, and reduce glue consumption to greatest extent, further Simplified flowsheet, reduce costs, enhance productivity.
In addition, by described, each described ultra-high molecular weight polyethylene film or band are connected as one, comprising: the overlapping portion hot pressing of ultra-high molecular weight polyethylene film described in arbitrary neighborhood two panels or band is integrated.
The controlled condition of hot pressing comprises: temperature 50-130 DEG C, and/or, pressure 1-15MPa; Above-mentioned hot pressing temperature is lower than the fusing point of ultra high molecular polyethylene film or band.
Adopt the mode of hot pressing each ultra-high molecular weight polyethylene film or band to be connected as one, without the need to gluing, reduce the internal injury of ultra-high molecular weight polyethylene film or band to greatest extent, further Simplified flowsheet, to reduce costs, enhance productivity.
Alternatively, after the adjacent regions of ultra high molecular polyethylene film or band described in every two panels is coated with adhesive, also comprise: dry described adhesive.
Alternatively, in order to obtain better drying effect, dry described adhesive comprises: adopt the 80-120 DEG C of described adhesive of drying, and this temperature, lower than the fusing point of ultra high molecular polyethylene film or band, can not cause damage to film or band while dry adhesive.
Alternatively, dried unidirectional cloth is cooled.
Alternatively, by wound into a roll for the unidirectional cloth prepared, to improve the regularity of workshop.
The relevant parameter of the film of ultra-high molecular weight polyethylene described in various embodiments of the present invention at least meet following one or more: line density is more than 5000 dawn; More than width 100mm; Below thickness 0.2mm; Fracture strength is more than 10 grams/dawn; Stretch modulus is more than 800 grams/dawn; Elongation at break is below 6%.
The relevant parameter of tapes of ultra high molecular weight polyethylene described in various embodiments of the present invention at least meet following one or more: line density is more than 100 dawn; Width 1-100mm; Below thickness 0.2mm; Fracture strength is more than 10 grams/dawn; Stretch modulus is more than 800 grams/dawn; Elongation at break is below 6%.
The unidirectional cloth preparation method that the present embodiment provides, be prepared based on ultra-high molecular weight polyethylene film or band, relatively traditional unidirectional cloth obtained based on superhigh molecular weight polyethylene fibers, without the need to carrying out the loaded down with trivial details technique of warping process respectively to each fiber, thus reduce preparation technology causes damage probability to ultra-high molecular weight polyethylene film or interior strips, be conducive to Simplified flowsheet, reduce costs, enhance productivity.
Embodiment two
The unidirectional cloth that the present embodiment provides, comprising: sprawl continuously successively along a direction and interconnective multi-disc ultra-high molecular weight polyethylene film or band.
In the present embodiment, ultra-high molecular weight polyethylene film is a kind of thin slice being become by ultrahigh molecular weight polyethylene, have one fixed width and thickness, and width is far longer than thickness, band is by the strip thin slice carrying out point cutting process before and after this film stretching and formed, the width of band is less than the width of film, and thickness is suitable with film.Ultra-high molecular weight polyethylene film or band itself have certain width and thickness, it is a kind of overall structure not having binding site or cutting line, have that intensity is high, modulus is large, creep properties is little, along film edge direction, there is less stress and concentrate the advantages such as coverage.
Alternatively, direction is the width of described ultra-high molecular weight polyethylene film or band.
Alternatively, the strand of the vertical described ultra-high molecular weight polyethylene film of width or band stretches direction.
As shown in Figure 2, be described for tapes of ultra high molecular weight polyethylene, multi-disc tapes of ultra high molecular weight polyethylene 101 is transversely sprawled successively continuously and connects, wherein the strand direction of tapes of ultra high molecular weight polyethylene 101 is longitudinally, the strand direction of the vertical tapes of ultra high molecular weight polyethylene 101 in the direction of namely sprawling, when being subject to external impacts, external force spreads along the direction of strand.
Alternatively, described in arbitrary neighborhood two panels, ultra-high molecular weight polyethylene film or band are overlapping at least partly, and overlapping portion is gluedd joint or hot pressing connects.
As shown in Figure 3, be described for tapes of ultra high molecular weight polyethylene, at the lap gluing of adjacent two panels tapes of ultra high molecular weight polyethylene 201, so that adjacent two panels tapes of ultra high molecular weight polyethylene 201 is bonded together, adopt the unidirectional cloth which obtains, compared to traditional without latitude cloth, without the need to lining form, only need at lap gluing, effectively can reduce glue consumption, thus reduce the internal injury of ultra-high molecular weight polyethylene film or band, be conducive to Simplified flowsheet, reduce costs, enhance productivity.
In addition, can also by the mode of hot pressing, hot pressing is carried out to lap and adjacent two panels tapes of ultra high molecular weight polyethylene 201 is connected together, without the need to gluing, reduce the internal injury of ultra-high molecular weight polyethylene film or band to greatest extent, further Simplified flowsheet, to reduce costs, enhance productivity.
Alternatively, ultra-high molecular weight polyethylene film described in arbitrary neighborhood two panels or band glued joint and non-overlapping copies, as shown in Figure 4, be described for tapes of ultra high molecular weight polyethylene, gluing in arbitrary neighborhood two panels tapes of ultra high molecular weight polyethylene 301 adjacent regions, two panels tapes of ultra high molecular weight polyethylene 301 is bonded together, adopt unidirectional cloth prepared by which, the area of ultra-high molecular weight polyethylene film or band can be utilized to greatest extent, and reduce glue consumption to greatest extent, further Simplified flowsheet, reduce costs, enhance productivity.
The unidirectional cloth that the present embodiment provides, based on ultra-high molecular weight polyethylene film or band preparation, relatively traditional unidirectional cloth obtained based on superhigh molecular weight polyethylene fibers, without the need to carrying out the loaded down with trivial details technique of warping process respectively to each fiber, thus reduce preparation technology causes damage probability to ultra-high molecular weight polyethylene film or interior strips, be conducive to Simplified flowsheet, reduce costs, enhance productivity; In addition, when receiving external impacts, ultra-high molecular weight polyethylene film or band are integrally stressed, rapidly stress point can be diffused as stress surface with effective transferring energy, and then improve unidirectional cloth intensity, improve its barrier propterty such as shellproof.
Embodiment three
As shown in Figure 5, the present embodiment provides one to comprise without latitude cloth preparation method:
Step S201, intersects compound successively at an angle by polylith unidirectional cloth;
Step S202, is laminated to one by the polylith unidirectional cloth of intersection compound and obtains described without latitude cloth.
Unidirectional cloth comprises: sprawl continuously successively along a direction and interconnective multi-disc ultra-high molecular weight polyethylene film or band.
Alternatively, polylith unidirectional cloth intersects laminated being integrated successively at an angle, comprising:
Sprawl cross layered at an angle successively for polylith unidirectional cloth, and hot pressing or glued joint the overlapping portion of unidirectional cloth described in polylith.
If adopt the mode of glueing joint, be then coated with adhesive, another side without adhesive in the one side of unidirectional cloth, the one side of a unidirectional cloth with adhesive is gluedd joint with the one side of another unidirectional cloth without adhesive.
If adopt the mode of hot pressing, then without the need to being coated with adhesive, being conducive to Simplified flowsheet, reducing costs, enhancing productivity.
Alternatively, the intersecting angle of the two layers of unidirectional cloth of arbitrary neighborhood is identical, and described intersecting angle is 0-90 degree.
Further, described intersecting angle is 45 degree or 90 degree.
Alternatively, in each layer unidirectional cloth, at least the intersecting angle of two layers of unidirectional cloth is different with the intersecting angle of other layer of unidirectional cloth.
Further, in first floor unidirectional cloth to last layer unidirectional cloth, the intersecting angle of each adjacent two layers unidirectional cloth increases gradually, adopts the making being mainly used in the helmet without latitude cloth prepared by which.
Above-mentioned formation can be two-layer compound without latitude cloth, also can be four layers of compound, also can be eight layers of compound.
The present embodiment provide without latitude cloth preparation method, the unidirectional cloth preparation adopting ultra-high molecular weight polyethylene film or band to prepare is without latitude cloth, technique is simple, production cost is low, obtained can be widely used in national defense and military without latitude cloth, in individual protection and civil area, floor as shellproof in helicopter, the passenger cabin door of armoring seat and reinforcing, the armor facing plate on tank and naval vessel, anti-fragment lining, creeper truck, the anti-ballistic armor of synthesis of tactical vehicle and business panzer, ballproof cash truck, the housing of armoring weapons, the guard shield cover of radar and flak jackets, bulletproof flashboards, the helmet, bulletproof stab-resistant clothes, shellproof anti-riot case and bag and other high-strength composite materials, as high-strength case and bag, vapour anti-collision rod for vehicles etc.
Embodiment four
The invention provides a kind of without latitude cloth, intersect laminated forming at an angle by the unidirectional cloth described in polylith above-described embodiment.
Alternatively, the intersecting angle of the two layers of unidirectional cloth of arbitrary neighborhood can be the same or different, and intersecting angle is 0-90 degree.
As the optional embodiment of one, as shown in Figure 6, the laminated formation of polylith unidirectional cloth 401 is without latitude cloth, and the intersecting angle of adjacent two layers unidirectional cloth 401 is 90 degree.
As the optional embodiment of one, as shown in Figure 7, the laminated formation of polylith unidirectional cloth 501 is without latitude cloth, and the intersecting angle of adjacent two layers unidirectional cloth 501 is 45 degree.
As the optional embodiment of one, as shown in Figure 8, the laminated formation of polylith unidirectional cloth 601 is without latitude cloth, in each layer unidirectional cloth, at least the intersecting angle of two layers of unidirectional cloth is different with the intersecting angle of other layer of unidirectional cloth, in first floor unidirectional cloth to last layer unidirectional cloth, the intersecting angle of each adjacent two layers unidirectional cloth increases gradually, adopts the making being mainly used in the helmet without latitude cloth prepared by which.
Alternatively, the lap of adjacent two pieces of described unidirectional cloths glueds joint or hot pressing connection.If adopt the mode of glueing joint, then at a gluing of unidirectional cloth, another side is glue-free, one side glue-free with another unidirectional cloth for the unidirectional one side being furnished with glue is gluedd joint.
Experiment test:
Above-mentioned formation can be two-layer compound without latitude cloth, also can be four layers of compound, also can be eight layers of compound, corresponding surface density be respectively 60g/m
2, 120g/m
2and 240g/m
2.
Getting 50 layers of above-mentioned surface density is 120g/m
2four layers of compound without latitude cloth, mutually superpose, size is cut into 400mm × 400mm, is contained in sack, backing clay target plate, adopts 54 formula pistols, and 51 formula lead for retractable pencil bullets, carry out attack test according to national standard GA141, record V50>=600m/s.
Getting 25 layers of above-mentioned surface density is 240g/m
2eight layers of compound without latitude cloth, mutually superpose, between adjacent one-way cloth become 0 °/90 ° cross arrangements, size is cut into 400mm × 400mm, be contained in sack, backing clay target plate, adopt 54 formula pistols, 51 formula lead for retractable pencil bullets, carry out attack test according to national standard GA141, record V50>=620m/s.
From test result, demonstrate splendid bulletproof effect based on ultra-high molecular weight polyethylene film or band without latitude cloth, effectively can resist bullet and threaten.Thisly can be widely used in flak jackets, bulletproof flashboards, the helmet, bulletproof stab-resistant clothes, panzer backing, Helicopter Seat and other high-strength composite materials, as high-strength case and bag, vapour anti-collision rod for vehicles etc. without latitude cloth with lightweight, that bulletproof effect is good advantage.
The present embodiment provide without latitude cloth, the unidirectional cloth adopting ultra-high molecular weight polyethylene film or band to prepare is composited, when by external impacts, ultra-high molecular weight polyethylene film or band are integrally stressed, rapidly stress point can be diffused as stress surface with effective transferring energy, there is intensity high, modulus is large, creep properties is little, along film edge direction, there is less stress and concentrate the advantages such as coverage, national defense and military can be widely used in, in individual protection and civil area, floor as shellproof in helicopter, the passenger cabin door of armoring seat and reinforcing, the armor facing plate on tank and naval vessel, anti-fragment lining, creeper truck, the anti-ballistic armor of synthesis of tactical vehicle and business panzer, ballproof cash truck, the housing of armoring weapons, the guard shield cover of radar and flak jackets, bulletproof flashboards, the helmet, bulletproof stab-resistant clothes, shellproof anti-riot case and bag and other high-strength composite materials, as high-strength case and bag, vapour anti-collision rod for vehicles etc.
Embodiment five
The present embodiment provides a kind of without latitude cloth products, adopt and obtain without latitude cloth, this intersects laminated forming without latitude cloth at an angle by polylith unidirectional cloth, and described unidirectional cloth comprises to be sprawled and interconnective multi-disc ultra-high molecular weight polyethylene film or band successively continuously along a direction.
The passenger cabin door including but not limited to the shellproof floor of helicopter, armoring seat and reinforcing without latitude cloth products that the present embodiment provides, the armor facing plate on tank and naval vessel, anti-fragment lining, the anti-ballistic armor of synthesis of creeper truck, tactical vehicle and business panzer, the housing of ballproof cash truck, armoring weapons, the guard shield cover of radar and flak jackets, bulletproof flashboards, the helmet, bulletproof stab-resistant clothes, shellproof anti-riot case and bag and other high-strength composite materials, as high-strength case and bag, vapour anti-collision rod for vehicles etc.
The present embodiment provide without latitude cloth products, due to the unidirectional cloth preparation adopting ultra-high molecular weight polyethylene film or band to prepare without latitude cloth, when by external impacts, ultra-high molecular weight polyethylene film is integrally stressed, rapidly stress point can be diffused as stress surface with effective transferring energy, therefore by this without latitude cloth prepare higher without latitude cloth products intensity, ballistic performance is better.
State in each embodiment on the invention, the sequence number of embodiment and/or sequencing are only convenient to describe, and do not represent the quality of embodiment.The description of each embodiment is all emphasized particularly on different fields, in certain embodiment, there is no the part described in detail, can see the associated description of other embodiments.
In the embodiments such as apparatus and method of the present invention, obviously, each parts or each step reconfigure after can decomposing, combine and/or decomposing.These decompose and/or reconfigure and should be considered as equivalents of the present invention.Simultaneously, above in the description of the specific embodiment of the invention, the feature described for a kind of embodiment and/or illustrate can use in one or more other embodiment in same or similar mode, combined with the feature in other embodiment, or substitute the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence referring to feature, key element, step or assembly when using herein, but does not get rid of the existence or additional of one or more further feature, key element, step or assembly.
Although last it is noted that described the present invention and advantage thereof in detail above, be to be understood that and can carry out various change when not exceeding the spirit and scope of the present invention limited by appended claim, substituting and converting.And scope of the present invention is not limited only to the specific embodiment of process, equipment, means, method and step described by description.One of ordinary skilled in the art will readily appreciate that from disclosure of the present invention, can use perform the function substantially identical with corresponding embodiment described herein or obtain and its substantially identical result, existing and that will be developed in the future process, equipment, means, method or step according to the present invention.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (21)
1. a preparation method for unidirectional cloth, is characterized in that, comprising:
Multi-disc ultra-high molecular weight polyethylene film or band is sprawled continuously successively along a direction;
Each described ultra-high molecular weight polyethylene film or band are connected as one, obtains described unidirectional cloth.
2. the preparation method of unidirectional cloth according to claim 1, is characterized in that, describedly each described ultra-high molecular weight polyethylene film or band is connected as one, and comprising:
Described in every two panels, the adjacent regions of ultra high molecular polyethylene film or band is coated with adhesive, is integrated each described ultra-high molecular weight polyethylene film or band to be gluedd joint.
3. the preparation method of unidirectional cloth according to claim 2, is characterized in that, after the adjacent regions of ultra high molecular polyethylene film or band described in every two panels is coated with adhesive, also comprises: dry described adhesive.
4. the preparation method of unidirectional cloth according to claim 3, is characterized in that, dry described adhesive comprises: adopt the 80-120 DEG C of described adhesive of drying.
5. the preparation method of unidirectional cloth according to claim 1, is characterized in that,
Described in arbitrary neighborhood two panels, ultra-high molecular weight polyethylene film or band are overlapping at least partly;
Described each described ultra-high molecular weight polyethylene film or band to be connected as one, comprising: the overlapping portion of ultra-high molecular weight polyethylene film described in arbitrary neighborhood two panels or band to be gluedd joint or hot pressing is integrated.
6. the preparation method of unidirectional cloth according to claim 5, is characterized in that, the controlled condition of described hot pressing comprises: temperature 50-130 DEG C, and/or, pressure 1-15MPa.
7. the preparation method of unidirectional cloth according to claim 1, is characterized in that, described direction is the width of described ultra-high molecular weight polyethylene film or band.
8. the preparation method of unidirectional cloth according to claim 7, is characterized in that, described width is that the strand of vertical described ultra-high molecular weight polyethylene film or band stretches direction.
9. the preparation method of unidirectional cloth according to claim 1, is characterized in that, the relevant parameter of described ultra-high molecular weight polyethylene film at least meet following one or more:
Line density is more than 5000 dawn;
More than width 100mm;
Below thickness 0.2mm;
Fracture strength is more than 10 grams/dawn;
Stretch modulus is more than 800 grams/dawn;
Elongation at break is below 6%.
10. the preparation method of unidirectional cloth according to claim 1, is characterized in that, the relevant parameter of described tapes of ultra high molecular weight polyethylene at least meet following one or more:
Line density is more than 100 dawn;
Width 1-100mm;
Below thickness 0.2mm;
Fracture strength is more than 10 grams/dawn;
Stretch modulus is more than 800 grams/dawn;
Elongation at break is below 6%.
11. 1 kinds of unidirectional cloths, is characterized in that, adopt as arbitrary in claim 1-10 as described in unidirectional cloth preparation method obtain.
12. 1 kinds without the preparation method of latitude cloth, is characterized in that, comprising:
Unidirectional cloth as claimed in claim 11 for polylith is intersected successively at an angle laminated being integrated and described without latitude cloth, described unidirectional cloth comprises: sprawl continuously successively along a direction and interconnective multi-disc ultra-high molecular weight polyethylene film or band.
13. preparation methods without latitude cloth according to claim 12, is characterized in that, described polylith unidirectional cloth intersects laminated being integrated successively at an angle, comprising:
Sprawl cross layered at an angle successively for unidirectional cloth described in polylith, and hot pressing or glued joint the overlapping portion of unidirectional cloth described in polylith.
14. preparation methods without latitude cloth according to claim 13, is characterized in that,
The one side of described unidirectional cloth has adhesive, another side without adhesive;
Described any two pieces of adjacent unidirectional cloths to be gluedd joint, comprising: any two pieces of described unidirectional cloths are intersected in the process of compound at an angle, the one side of a unidirectional cloth with adhesive is gluedd joint with the one side of another unidirectional cloth without adhesive.
15. preparation methods without latitude cloth according to claim 12, is characterized in that, the intersecting angle of the two layers of unidirectional cloth of arbitrary neighborhood is identical.
16. preparation methods without latitude cloth according to claim 15, is characterized in that, described intersecting angle is 0-90 degree.
17. preparation methods without latitude cloth according to claim 16, is characterized in that, described intersecting angle is 45 degree or 90 degree.
18. preparation methods without latitude cloth according to claim 12, is characterized in that, in each layer unidirectional cloth, at least the intersecting angle of two layers of unidirectional cloth is different with the intersecting angle of other layer of unidirectional cloth.
19. preparation methods without latitude cloth according to claim 18, is characterized in that, the intersecting angle of each adjacent two layers unidirectional cloth increases gradually in first floor unidirectional cloth to last layer unidirectional cloth.
20. 1 kinds, without latitude cloth, is characterized in that, adopt as arbitrary in claim 12-19 as described in without latitude cloth preparation method obtain.
21. 1 kinds, without latitude cloth products, is characterized in that, adopt and obtain without latitude cloth as claimed in claim 20.
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| CN201310247170.5A CN104228062A (en) | 2013-06-20 | 2013-06-20 | Unidirectional fabric, non-woven fabric, preparation methods of fabrics and non-woven fabric product |
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| CN201310247170.5A CN104228062A (en) | 2013-06-20 | 2013-06-20 | Unidirectional fabric, non-woven fabric, preparation methods of fabrics and non-woven fabric product |
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Application publication date: 20141224 |