CN103174127B - Warp-knitted polyester glass fiber three-dimensional slope protection soil fixation grating and preparation method thereof - Google Patents
Warp-knitted polyester glass fiber three-dimensional slope protection soil fixation grating and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a warp-knitted polyester glass fiber three-dimensional slope protection soil fixation grating and a preparation method thereof, and in particular relates to a multi-grid grating formed by weaving polyester fiber yarns and glass fiber yarns and a preparation method thereof. Transverse gratings of the grating are formed by arranging glass fiber yarns and polyester fiber yarns; longitudinal gratings of the grating are glass fiber yarns; joints of transverse gratings and longitudinal gratings of grids are bound by polyester wires; after the grating is heated, the glass fiber yarns of the transverse gratings of the grids are upwards bent and protruded from binding points on two sides to form a three-dimensional state of the grating; and a solidification layer formed by waterproof adhesive emulsion is arranged on the surface of the grating. The grating in the preparation method is easy in production and manufacture and high in efficiency; in a construction paving process, the stability of the length and the width of the grating is good; a large area of gratings are paved; the construction difficulty is low; the warp-knitted polyester glass fiber three-dimensional slope protection soil fixation grating is used on the surface of a slope body, and a slope fixing effect is good; and even if the grating is corroded by rainwater for a long time and is immersed in water, the grating still has enough strength.
Description
Technical field
The invention belongs to water and soil conservation field, particularly a kind of through compiling solid native grid of the three-dimensional bank protection of polyester glass fibre and preparation method thereof.
Background technology
Along with the fast development of speedway and high-speed railway, the protection of protecting soil and vegetation on hillside, slope, road is more and more important.The exploitation of various mineral reserve, if protection not in time can cause a lot of disasters such as landslide, mud-rock flow, causes very large loss to the country and people.
The soil property on hillside, slope, road can become quality soft after the immersion of rainwater.The domatic upper soft earth that fluffs after being soaked by rainwater, under the effect of sliding force and rain drop erosion power, as easy as rolling off a log downslide, forms landslide.Serious landslide can cause the interruption of road and the destruction of road.Grid is as a kind of novel earth working material, and kind is a lot, is of wide application.At high-speed railway, in the construction process of speedway, for the reinforcing of ground, play the effect of mild steel muscle, prevent subsiding of roadbed, protection roadbed.The product of similar three-dimensional grate, roughly divided two kinds in the past.A kind of cry plastic grid chamber, taking plastics as raw material, by plastic extruder, plastics pultrusion is become to ribbon, then banded plastic tape being cut into length, to be about 1-2 rice long, is welded into mesh one by one, formation lattice chamber with plastic welding machine.On the slope, soil is filled in the inside, lattice chamber, play the effect of bank protection and plantation vegetation.Another kind is plastic optical fibre three dimensional network, that profit is taking plastics as raw material equally, pass through plastic extruder, plastic extrusion is become to fibrous, and plastic optical fibre carries out the random fibrous web-like that is laid into, and then the plastic wire of fibrous web-like is sent into mould, grinding tool heats plastic fiber net, extruding forms well-regulated rough three-dimensional netted, forms three-dimensional plastic net, plays the effect of solid soil in bank protection.
Producing plastic grid chamber with plastic strip has applied for many years.Its shortcoming: the one, to manufacture loaded down with trivial detailsly, efficiency is low.First plastics to be become to plastic strip by plastic extruder, and then by plastic strip on request slices weld, welding all adopts manual, so production efficiency is low; The 2nd, be not easy to construction.The one-tenth character chamber of having welded is Pork-pieces junior unit, and every area only has several square metres, in large slope protection construction, want a piece docking, construction trouble not only in docking operation, and the brute force of joint can be greatly affected, thus affect the brute force of whole bank protection slope body; The 3rd, plastics (generally adopting polypropylene or the polyethylene) time itself has been grown, and its brute force has obvious decline, thereby causes the brute force of whole bank protection slope body to decline; The 4th, plastic grid chamber is the net structure that plastic tape is welded, and the width of plastic tape is exactly the height of lattice chamber.In its plane, do not have the yarn of vertical arrangement to play humidification, in construction process of deployment, its length and width degree poor stability, bad assurance, large area is laid, and difficulty of construction is large; The 5th, cost of production is high.
Be exactly current three-dimensional plastic net, be also taking plastics as raw material (polypropylene or polyethylene) plastic filament of extruding by plastic extruder, through continuous random tiling, finally by crossing mould, hot rolling goes out rough hole shape, difficulty of processing is relatively simple, but network-like because of its knot formation, in the time bearing external pull, be easy to deform, in the time that external pull is larger, as easy as rolling off a log fracture, can not provide short enough brute forces to soil and slope protection, easily causes domatic not firm.In addition, three-dimensional plastic net be also with polypropylene or polyethylene be raw material, its ageing-resistant degree is poor, the time is permanent, powerful can obviously decline declines the brute force of bank protection slope body.
Summary of the invention
The object of the invention is to propose one through compiling solid native grid of the three-dimensional bank protection of polyester glass fibre and preparation method thereof for the problems referred to above, grid is combined and is formed by alkali-free glass fiber yarn and high-strength polyester long filament.
To achieve these goals, technical scheme of the present invention is:
A kind of through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, weave by polyester fibers and glass fiber yarn sound of laughing the grid in many ways that form, the horizontal grid of described grid are to be rearranged by glass fiber yarn and polyester fibers, longitudinal grid of described grid are glass fiber yarns, and the crossbar contact of the horizontal grid of grid and longitudinally grid is fixing with polyester capillaries binding; Wherein, described grid is after heat treated, and the glass fiber yarn of the horizontal grid of described grid is bent upwards the three-dimensional state that convexes to form grid, the cured layer that the surface of described grid has water-proof binding agent emulsion to form from both sides binding point.
Further, the glass fiber yarn of described longitudinal grid is at least one 800-2400tex alkali-free glass fibre yarn, described horizontal grid are at least one 300-500tex polyester fibers and are at least that one 800-2400tex alkali-free glass fibre yarn rearranges, and it is 2 centimetres to 4 centimetres that the glass fiber yarn of the horizontal grid of described grid is bent upwards protruding height from both sides binding point.
Further, the horizontal grid of described grid be by one 300-500tex glass fiber yarn upper and one 800-2400tex polyester fibers under rearrange.
Further, the horizontal grid of described grid are made up of in arranged on both sides at middle and two strands of 800-2400tex polyester fibers one 300-500tex glass fiber yarn.
Further, described water-proof binding agent emulsion is the one in PVC or PE or PU cementing agent emulsion.
Further, described grid is that horizontal grid and longitudinal grid are respectively the grids of 5-10 centimetre.
A kind of through compiling the solid native grid preparation method of the three-dimensional bank protection of polyester glass fibre, described method comprises that polyester fibers and glass fiber yarn braiding are formed the grid of lattice in many ways by braider, the horizontal grid of described grid are to be rearranged by glass fiber yarn and polyester fibers, longitudinal grid of described grid are glass fiber yarns, wherein, the knot point of the horizontal grid of grid and longitudinal grid is fixing with polyester capillaries binding; The grid weaving is carried out to the coating of water-proof binding agent emulsion, the grid that is coated with water-proof binding agent emulsion is sent into and in vertical drying oven, carried out pre-heating drying, in the time that the polyester fibers of grid is subject to thermal contraction 70% to 75%, grid is sent into the pyrocondensation processing of shaping of horizontal baking oven; Enter winder from horizontal baking oven grid out, wherein, the glass fiber yarn of the horizontal grid of grid grid is bent upwards from both sides binding point the three-dimensional state that convexes to form grid.
Further, the glass fiber yarn of described longitudinal grid is at least one 800-2400tex alkali-free glass fibre yarn, described horizontal grid are rearranged upper at lower and one 800-2400tex alkali-free glass fibre yarn by one 300-500tex polyester fibers, or the horizontal grid of described grid are made up of in arranged on both sides at middle and two strands of 800-2400tex polyester fibers one 300-500tex glass fiber yarn.
Further, the temperature of carrying out pre-heating drying in described vertical drying oven is 115 DEG C to 125 DEG C, and the time of pre-heating drying is 9 to 11 minutes.
Further, the shape temperature of pyrocondensation processing of described horizontal baking oven is 165 DEG C to 175 DEG C, and the time of sizing pyrocondensation processing is 5 to 7 minutes.
The present invention compared with prior art tool has the following advantages: manufacture simply, efficiency is high, in construction process of deployment, and the length and width degree good stability of grid, the difficulty of construction that large area is laid is little; Through compiling the solid native grid use of the three-dimensional bank protection of polyester glass fibre on slope surface, Gu slope is effective; Grid is subject to the erosion of rainwater for a long time, is immersed in water, and grid still can ensure enough brute forces, and therefore, the long-term ageing-resistant degree using is high, the brute force that the time is permanent and make bank protection powerful decline little.
Below in conjunction with drawings and Examples, the present invention is described in detail.
Brief description of the drawings
Fig. 1 is cell structure schematic diagram of the present invention;
Fig. 2 is grid preparation flow schematic diagram of the present invention;
Fig. 3 is horizontal baking oven working state schematic representation.
Detailed description of the invention
Embodiment 1:
A kind of through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, referring to Fig. 1, the solid native grid of described three-dimensional bank protection weaves by polyester fibers and glass fiber yarn sound of laughing the grid 1 in many ways that form, the horizontal grid of described grid are to be rearranged by glass fiber yarn 1-1 and polyester fibers 1-2, longitudinal grid 1-3 of described grid is glass fiber yarn, and the crossbar contact 1-4 of the horizontal grid of grid and longitudinally grid is fixing with polyester capillaries binding; Wherein, described grid is after heat treated, and the glass fiber yarn of the horizontal grid of described grid is bent upwards the three-dimensional state that convexes to form grid, the cured layer that the surface of described grid has water-proof binding agent emulsion to form from both sides binding point; In embodiment, laterally refer to when grid is laid on ramp and the direction of ramp transverse uniaxial.
In embodiment, the glass fiber yarn of described longitudinal grid is at least one 800-2400tex alkali-free glass fibre yarn, described horizontal grid are at least one 300-500tex polyester fibers and are at least that one 800-2400tex alkali-free glass fibre yarn rearranges, and it is 2 centimetres to 4 centimetres that the glass fiber yarn of the horizontal grid of described grid is bent upwards protruding height from both sides binding point.
In embodiment, the horizontal grid of described grid be by one 300-500tex glass fiber yarn upper and one 800-2400tex polyester fibers under rearrange.
In embodiment, except above-mentioned permutation and combination, the horizontal grid of described grid are made up of in arranged on both sides at middle and two strands of 800-2400tex polyester fibers one 300-500tex glass fiber yarn.
In embodiment, described water-proof binding agent emulsion is the one in PVC or PE or PU cementing agent emulsion.
In embodiment, described grid be horizontal grid and longitudinally grid be respectively the grid (be to determine according to the actual needs, its medium square is that horizontal grid are 10 centimetres, longitudinally grid are that the grid of 5 centimetres is the most often to use, and are also the schemes of best results) of 5-10 centimetre.
In embodiment, described polyester capillaries is 250D polyester capillaries.
Below the specific descriptions of the present embodiment feature:
Delete through compiling the solid native lattice of the three-dimensional bank protection of polyester glass fibre, taking high-intensity polyphosphazene polymer ester fiber and high-intensity inorganic matter glass fiber as raw material, powerful big or small to grid according to construction party, the height of mesh size and three-dimensional projection, the designing requirements such as the density of three-dimensional projection, by polyester fiber and glass fiber is regular is staggered (is longitudinally glass fiber, be laterally that two kinds of polyester fiber and glass fiber are arranged on request), pass through Warp Knitted Fabrics, use 250D polyester filament, the high-strength polyester fibers yarn arranging and high-strength glass fibre yarn are bundled by root, form an entirety.Special anticorrosion, the waterproofing materials of outside coating, through high temperature thermal finalization, laterally high-strength polyester fibers, under the effect of high temperature, shrinks gradually on request, makes horizontal glass fiber form well-regulated projection, forms 3 D stereo shape grid.According to client's construction requirement, can make 4 meters of width, 150 meters of following various sizes of length, convenient construction.Horizontal high-strength polyester fibers after pyrocondensation and longitudinally high-strength glass fibre, form the base cloth of longitudinal, horizontal vertical interlaced in three-dimensional planar, base cloth has ensured the longitudinal and transverse brute force of three-dimensional grate, thereby ensure the brute force of construction adverse grade body, the three-dimensional solid native grid of polyester glass fibre, compare with plastic grid chamber and the three-dimensional plastic net of original similar functions, raw material and processing technology are completely different, have that production efficiency is high, rolling area is large, constructability, intensity dimensional stability are high, corrosion-resistant, ageing-resistant etc., there is incomparable advantage.
Through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, be mainly used in bank protection, the effect of simultaneously play solid soil, fixing the sand.Its maximum advantage is solid soil and the bank protection on the slopes such as hillside, Sha Po, Lu Po, Hu Po.This just requires grid: the first, must have enough brute forces and dimensional stability, to ensure the stability of slope body; The second, grid must have enough large developed area, convenient construction; Three, grid must have good 3-D effect, and grid and slope body are meshed together, and while clamping down on rainwater weather, rainwater washes away slope body earth, plays the solid native effect of bank protection; Four, grid must be corrosion-resistant, ageing-resistant, is subject to for a long time water erosion unchanged, must waterproof.To these requirements of grid, first, raw material select on, longitudinally select high-strength alkali-free glass fiber yarn (800-2400tex), laterally select two kinds, high-strength polyester long filament (300-500tex) and high-strength alkali-free glass fiber yarn (800-2400tex).Two kinds of yarns are arranged by production engineering specifications.(thickness of yarn and arrangement mode, Tex-represents thickness of yarn; It is exactly 1tex that the long yarn of 1 km weighs 1 gram).Grid is in the time that bank protection uses, and it longitudinally can be than laterally bearing larger pulling force.Longitudinally select high-strength fiber glass yarn, the one, can ensure enough brute forces of longitudinal grid, the 2nd, can ensure longitudinal grid size stability, because glass Flexible change is very little.Laterally adopt high-strength polyester yarn, the one, because the defeated macromolecular fibre of polyester fiber, the aging phenomena such as its brute force, water-fast, resistance to daylight solarization are more much better than polyethylene, polypropylene fibre.The 2nd, utilize chemical fibre to there is the characteristic of thermal contraction, in the time of high temperature, polyester fiber shrinks in check scope, and transversely arranged glass fiber (glass is heated and does not shrink) is become to lax, forms projection, forms three-dimensional structure.The three advantages that above-mentioned grid possesses.First be that grid bears powerful requirement.The brute force of three-dimensional solid native grid, is mainly the yarn that comes from vertical arrangement in plane, is longitudinally glass fibre yarn, is laterally polyester yarn.Powerful size one is to be tex number (same yarn tex number is larger, represents that yarn is thicker, and its breaking strength is higher) by the thickness of yarn itself, the 2nd, and by the density of yarn arrays.The thickness of yarn and arranging density can affect the height (thickness of grid) of three-dimensional projection and the density of three-dimensional projection.Therefore, by adjusting the thickness of yarn and the density of yarn, the two is taken into account, ensure the brute force of grid, three-dimensional projection height, (density of three-dimensional yarn projection can affect the firm degree of solid soil to the thread density of three-dimensional projection, general mud particles is thinner, the density of three-dimensional projection can be larger, depending on the silt geological condition of slope body).The 3rd, pass through tricot machine, all longitudinal, transverse yarns (to be comprised to the longitudinal base cloth yarn and the horizontal base portion yarn that in three-dimensional planar, play bearing tension, and the solid native yarn of three-dimensional bossing) knot point, with high-strength polyester filament 250D, (D-represents fibre fineness.9000 meters long heavy several grams is exactly several D), bundle one by one solid one-tenth as a whole, form the solid sun-dried mud brick cloth of package polyester glass fibre three-dimensional grate bank protection of pressing production engineering specifications width and length.
The three-dimensional projection of grid, namely three-dimensional height, if too little, the embedded quantity of grid and sandy soil is inadequate, can not have good engagement with sandy soil, does not just have the effect of solid soil.If three-dimensional is highly excessive, the one, production and processing cost is high, and the 2nd, volume length can diminish, and is not easy to construction and long-distance transport, and the effect of solid soil is not varied widely.Therefore,, through compiling the three-dimensional height of the solid native grid of the three-dimensional bank protection of polyester glass fibre, the namely thickness of grid, is typically chosen in below 4 centimeters.The three-dimensional height of three-dimensional grate, three-dimensional density and become organic one with base cloth, and there is controllability.
Through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, use on slope surface, grid surface covers one deck soil, so that plantation vegetation.So grid will be subject to the erosion of rainwater for a long time, is immersed in water.In order to make grid ensure enough brute forces in permanent, powerful high except selecting, outside corrosion-resistant ageing-resistant raw material, also must carry out waterproofing work to grid, utilize the water-proof emulsion such as PVC or PE, PU to be coated in grid surface, in the process of shrinking in grid high-temperature heating, applicator is solidified, wrap up yam surface, reach the effect of grid waterproof.
Embodiment 2:
A kind of through compiling the solid native grid preparation method of the three-dimensional bank protection of polyester glass fibre, referring to Fig. 1, Fig. 2 and Fig. 3, described method is: first by braider, polyester fibers and glass fiber yarn braiding are formed to the grid of lattice in many ways, the horizontal grid of described grid are to be rearranged by glass fiber yarn and polyester fibers, longitudinal grid of described grid are glass fiber yarns, wherein, the knot point of the horizontal grid of grid and longitudinal grid is fixing with polyester capillaries binding; The grid weaving is rolled into tubular and sends into post processing, tubular grid volume 2 is launched, first send into water-proof binding agent emulsion groove 3 and carry out the coating of water-proof binding agent emulsion, the grid that is coated with water-proof binding agent emulsion is sent into and in vertical drying oven 4, carried out pre-heating drying, in the time that the polyester fibers of grid is subject to thermal contraction 70% to 75%, grid is sent into the pyrocondensation processing of shaping of horizontal baking oven 5; Enter winder 6 from horizontal baking oven grid out, wherein, the glass fiber yarn of the horizontal grid of grid grid is bent upwards from both sides binding point the three-dimensional state that convexes to form grid.
In embodiment, the glass fiber yarn of described longitudinal grid is at least one 800-2400tex alkali-free glass fibre yarn, described horizontal grid are rearranged upper at lower and one 800-2400tex alkali-free glass fibre yarn by one 300-500tex polyester fibers, or the horizontal grid of described grid are made up of in arranged on both sides at middle and two strands of 800-2400tex polyester fibers one 300-500tex glass fiber yarn.
In embodiment, the temperature of carrying out pre-heating drying in described vertical drying oven be 115 DEG C to 125 DEG C (degree Celsius), when optimum temperature 120 DEG C; The time of pre-heating drying is 9 to 11 minutes, and Best Times is 10 minutes.
In embodiment, described horizontal baking oven shape the temperature of pyrocondensation processing be 165 DEG C to 175 DEG C (degree Celsius), optimum temperature is 170 DEG C; The time of sizing pyrocondensation processing is 5 to 7 minutes, and Best Times is 6 minutes.
The present embodiment passes through tricot machine, all grids is longitudinal, transverse yarns (comprises the longitudinal base cloth yarn and the horizontal base portion yarn that in three-dimensional planar, play bearing tension, and the solid native yarn of three-dimensional bossing) knot point, with high-strength polyester filament 250D, (D-represents fibre fineness.9000 meters long heavy several grams is exactly several D), bundle one by one solid one-tenth as a whole, form the solid sun-dried mud brick cloth of package polyester glass fibre three-dimensional grate bank protection of pressing production engineering specifications width and length.Then three-dimensional web-like grid grey cloth is carried out to post processing processing.First, grey cloth is carried out to waterproof, anticorrosion, binding node bonding enhancing coating through water-proof binding agent emulsion soaking compartment.The grey cloth having applied enters in vertical drying oven dries, and the moisture in anticorrosion, the waterproof applying, cementing agent emulsion is removed, and make it progressively to solidify, and posts at grid surface, by the effect of cementing agent, forms anticorrosion, the fish tail and waterproof layer of one deck densification.After the moisture of grid grey cloth evaporates, grid grey cloth carries out hot preshrunk in vertical drying oven.Three-dimensional grate grey cloth after hot preshrunk out enters horizontal baking oven from vertical drying oven, carries out final pyrocondensation processing.The crawler belt 7 with fixture is installed respectively in horizontal baking oven both sides, and crawler belt horizontal reciprocating movement drives fixture 7-1 horizontal reciprocating to move at horizontal baking oven.Distance between the fixture of both sides is the width that three-dimensional grate finished product requires.Grey cloth after pre-pyrocondensation enters in horizontal baking oven, the both sides fixture of motion continuously in baking oven, and by the grey cloth clamping after pre-pyrocondensation, grid is with the horizontal movement in baking oven of fixture crawler belt.Temperature in baking oven, by further the grey cloth after pre-pyrocondensation pyrocondensation, tensioning in the middle of the fixture of both sides in baking oven, thus ensure uniformity and the uniformity of thermal contraction, also just form the height of three-dimensional grate projection.The requirement of the height according to construction party to three-dimensional grate projection, the width of the width of grid grey cloth and customer requirement finished product poor, be exactly total pyrocondensation amount.Grid grey cloth is in setting up standby process, and the node of all yarns all bundles with polyester fine silk thread (250D) in length and breadth, in pyrocondensation process, only has horizontal polyester fibers to have the function of pyrocondensation.Longitudinally yarn is high-strength fiber glass yarn, there is no pyrocondensation function.At longitudinal glass fibre yarn tension force with under laterally by the effect of pyrocondensation yarn (polyester yarn) pyrocondensation power, laterally glass fibre yarn projection just forms uniform three-dimensional bulge-structure in longitudinal glass fibre yarn spacing.The total pyrocondensation amount of difference of grid grey cloth and finished product can be evenly distributed in two groups of longitudinal glass fibre yarn spacing, forms projection.Thereby ensure the make peace fabric width requirement of finished product of one of the three-dimensional height of projection of three-dimensional grate.
Embodiment, according to production engineering specifications, from raw-material selection, is the first step to the manufacture of tricot machine, completes the processing of three-dimensional grate grey cloth.The processing of grey cloth is ensureing, on the basis of the powerful and three-dimensional protruding yarn density of three-dimensional grate, must accurately to calculate the pre-allowance of pyrocondensation, with the height that ensures three-dimensional protruding yarn within the scope of controlling.Grid grey cloth applies, dries, pre-pyrocondensation, controlledly heat that to be reduced to finished product be second step.By first and second liang of step work, complete whole through compiling the manufacture of the solid native grid finished product of the three-dimensional bank protection of polyester glass fibre.
Through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, in manufacture process, adopt special raw material and special disposable the completing of processing technology.Base cloth plays the booster action to slope body in bank protection; Three-dimensional projection plays fixation in the body of slope.Especially the effect meeting of bringing into play in the slope body of large-scale (area is large, the gradient is large) is larger.And plastic grid chamber and three-dimensional plastic net in the past all do not play the base cloth of booster action, even if need under special circumstances slope body to strengthen, also can only first lay the common grid of one deck, re-lay three-dimensional plastic net or plastic grid chamber.The one, cause that difficulty of construction is large, efficiency of construction is low; The 2nd, solid the reinforcement grid of native net and laying is not an entirety of combination structure, just can not fully play bank protection and solid native effect.
Through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, structurally, longitudinally adopting per share is the high-strength fiber glass yarn of 800-2400tex, 1 to 3 strand of yarn is arranged side by side, between yarn arranged side by side and yarn, spacing is 5 to 10 centimeters of longitudinal base fabric structure of plane that form the three-dimensional grate of grid, bears the effect of supporting domatic pulling force.Laterally grid except glass fiber yarn at upper, polyester fibers lower arrangement, can also adopt horizontal direction is that 2 strands of the polyester yarns of glass fibre yarn one and the 300-500tex of 800-1200tex are arranged side by side, wherein, polyester yarn is in the both sides of glass fibre yarn.By tricot machine, by longitudinal, horizontal all knot points, utilize the high-strength polyester yarn binding of 150D to 250D firmly.Form the grey cloth of three-dimensional grate.Polyester fibers forms horizontal base fabric structure in three-dimensional inner plane, bears the lateral pull of three-dimensional grate.Laterally glass fibre yarn, in the pyrocondensation process of post processing, forms three-dimensional bulge-structure.So, in the design of product and the actual manufacture process of grey cloth, by the projection of the base cloth of three-dimensional grate and three-dimensional grate, being organically combined into an entirety, this is first step work.
Second step, is placed in three-dimensional large package lattice grey cloth on uncoil-stand, and under the effect of rolling tractive force (hauling speed is generally at 4-6 m/min), grey cloth is through applying groove, after vertical drying oven, horizontal baking oven, by fixed length (construction party appointment) rolling.Large package three-dimensional grate grey cloth, applying in groove after gluing, surface is coated with water-fast cementing agent emulsion, enter vertical drying oven (26 meters of vertical drying oven height, dry the temperature inside the box and be controlled at 120 DEG C of left and right), the water-fast and cementing agent emulsion that surface applies is progressively dried, is solidify to form the waterproof film of larger adhesion strength under hot wind action.The run duration general control of grey cloth in vertical drying oven is about 10 minutes, enter first 5 minutes after baking oven, be in order to evaporate the whole moisture in grey cloth, go out 5 minutes before baking oven, grey cloth is carried out to pre-pyrocondensation (pre-pyrocondensation amount accounts for 70% left and right of whole thermal shrinking quantity).The three-dimensional grate grey cloth of drying, pre-pyrocondensation, go out after vertical drying oven, by the fixture on the horizontal baking oven import both sides clamping (distance of fixture between horizontal baking oven both sides, the width of shaping after controlled exactly pyrocondensation, the namely width of end product), under clamping crawler belt and traction winding tension, enter horizontal baking oven.The temperature of horizontal baking oven is 170 ° of left and right, 15 meters of length.Temperature in horizontal baking oven is than the high 50 ° of C of the temperature in vertical drying oven left and right, guaranteeing having sufficient temperature in horizontal baking oven, the time, (grey cloth was long running time in baking oven, horizontal baking oven will be longer, floor space can be larger), make three-dimensional grate grey cloth, in the scope of fixture control, obtain abundant pyrocondensation, thereby the height that ensures three-dimensional grate projection fiber, then finished product (every volume length is generally 50 meters or 100 meters, is provided by construction party) is provided in fixed length rolling.
Through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, in the solid native process of different bank protections, the gradient size of for example bank protection, the factor differences such as geological condition and solid native silt situation, the height of intensity to grid, three-dimensional projection, the requirement difference of density, so selected raw material thickness, the arrangement mode of yarn, radical is not identical in the time of design.The solid soil of some requirement of engineering is effective, and the density of the protruding yarn of three-dimensional grate and height will suitably increase, and fineness of yarn can suitably reduce; Some requirement of engineering increases the brute force of slope body, so just need to strengthen the brute force of base cloth in three-dimensional grate plane; To bank protection, powerful and solid soil has requirement, will the two take into account.Fully understand construction party to the basis of three-dimensional grate engine request on, carry out technological design, different engine requests, its processing technology is different.Technological design, raw-material selection, is the basis of carrying out three-dimensional grate, tricot machine equipment and equipment for after-treatment are to ensure that technique realizes, and meets the key of product requirement.
Through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, most crucial flow process, the one, the selection (two kinds of yarns) of raw material: the first is the fiber yarn that does not possess thermal contraction performance; The second be there is thermal contraction performance fiber yarn (or under same temperature, a kind of fiber has reached the temperature of thermal contraction and has shunk, do not shrink and another kind of fiber does not also reach the temperature of thermal contraction), but the intensity of two kinds of fibers and ageing-resistant, decay resistance will be got well.The 2nd, the design of technique, possess the fiber yarn of thermal contraction condition and do not possess the arrangement mode of the fiber yarn of thermal contraction condition, the thickness of arrangement pitches and yarn etc., with the brute force of capable of meeting requirements on three-dimensional grid, the height of three-dimensional protruding fiber and the density of three-dimensional protruding fiber.
The present embodiment is through compiling the maximum feature of the solid native grid of the three-dimensional bank protection of polyester glass fibre, except having the performance of common grid (plane enhancing), also has three-dimensional fixation.So in the technological process of manufacturing, the one, the raw-material difference of selecting, adopt two kinds of fiber yarns that Thermal Contraction Coefficient differs greatly through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, its object is exactly in the last handling process of grey cloth, at a certain temperature, the yarn that Thermal Contraction Coefficient is large shrinks, and the little yarn of Thermal Contraction Coefficient does not shrink, make original yarn in same plane, after pyrocondensation not in same plane, the yarn projection that pyrocondensation coefficient is little, the three-dimensional structure of formation grid, plays fixation.There is no protruding yarn still in same plane, form the base fabric structure of three-dimensional grate, play forceful action, the 2nd, on tricot machine, the layout of yarn is completely different, the brute force just providing by client and the size of mesh opening of common planar grille carry out arranging through weft yarn, and the yarn layout of the solid native grid of the three-dimensional bank protection of polyester glass fibre, except meeting the powerful requirement of grid, also want the capable of meeting requirements on three-dimensional projection height of yarn and the density of three-dimensional protruding yarn, the size of mesh opening of the interior base cloth of three-dimensional grate plane etc., and to carry out arranging of yarn by accurate pyrocondensation amount, make last finished product reach powerful, three-dimensional height of projection, the density of three-dimensional protruding yarn, size of mesh opening, fabric width reaches the requirement of design and construction, the 3rd, the control of the horizontal baking oven of increase to product pyrocondensation amount, by the gripping of both sides fixture in horizontal baking oven, make the three-dimensional grate grey cloth of hot preshrunk under the gripping control of fixture, the pyrocondensation amount leaving when grey cloth is produced, obtain sufficient pyrocondensation, make the size of mesh opening of three-dimensional grate, three-dimensional height of projection reaches designing requirement.
The longitudinal yarn of the present embodiment adopts glass fibre yarn, and in yarn arrays, the distance between every two groups of yarns will be considered the pyrocondensation amount of horizontal polyester yarn, the i.e. height of three-dimensional grate projection.The whole pyrocondensation amount leaving (pyrocondensation amount=grey cloth width-finished width), on average assign in the distance between every two groups of yarns, ensure three-dimensional grate height of projection and protruding uniformity.Polyester glass fibre three-dimensional grate grey cloth, in the time that vertical drying oven preshrunk has just entered horizontal baking oven, the grey cloth place relaxed state that fixture grips, to give the fiber yarn that is subject to pyrocondensation, leave pyrocondensation space accurately, must pyrocondensation arrive the size that technological parameter requires, can not occur pyrocondensation large (because the fixture on both sides has been controlled extremely), can not pyrocondensation (can suitably reduce speed if pyrocondensation is not in place, or improve hot blast temperature) not in place.
Claims (10)
1. consolidate native grid through compiling the three-dimensional bank protection of polyester glass fibre for one kind, it is characterized in that, the solid native grid of described bank protection weaves by polyester fibers and glass fiber yarn sound of laughing the grid in many ways that form, the horizontal grid of described grid are to be rearranged by glass fiber yarn and polyester fibers, longitudinal grid of described grid are glass fiber yarns, and the crossbar contact of the horizontal grid of grid and longitudinally grid is fixing with polyester capillaries binding; Wherein, the glass fiber yarn of the horizontal grid of described grid is bent upwards the three-dimensional state that convexes to form grid, the cured layer that the surface of described grid has water-proof binding agent emulsion to form from both sides binding point.
2. one according to claim 1 is through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, it is characterized in that, the glass fiber yarn of described longitudinal grid is at least one 800-2400tex alkali-free glass fibre yarn, described horizontal grid are by being at least one 300-500tex polyester fibers and being at least that one 800-2400tex alkali-free glass fibre yarn rearranges, and it is 2 centimetres to 4 centimetres that the glass fiber yarn of the horizontal grid of described grid is bent upwards protruding height from both sides binding point.
3. one according to claim 2, through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, is characterized in that, the horizontal grid of described grid be by one 300-500tex glass fiber yarn upper and one 800-2400tex polyester fibers under rearrange.
4. one according to claim 2, through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, is characterized in that, the horizontal grid of described grid are made up of in arranged on both sides at middle and two strands of 800-2400tex polyester fibers one 300-500tex glass fiber yarn.
5. one according to claim 1, through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, is characterized in that, described water-proof binding agent emulsion is the one in PVC or PE or PU cementing agent emulsion.
6. one according to claim 1, through compiling the solid native grid of the three-dimensional bank protection of polyester glass fibre, is characterized in that, described grid is made up of multiple grids, and each grid is that the length and width of horizontal grid and longitudinal grid composition are the grid of 5-10 centimetre.
7. consolidate native grid preparation method through compiling the three-dimensional bank protection of polyester glass fibre for one kind, it is characterized in that, described method is: polyester fibers and glass fiber yarn braiding are formed the grid of lattice in many ways by braider, the horizontal grid of described grid are to be rearranged by glass fiber yarn and polyester fibers, longitudinal grid of described grid are glass fiber yarns, wherein, the knot point of the horizontal grid of grid and longitudinal grid is fixing with polyester capillaries binding; The grid weaving is carried out to the coating of water-proof binding agent emulsion, the grid that is coated with water-proof binding agent emulsion is sent into and in vertical drying oven, carried out pre-heating drying, in the time that the polyester fibers of grid is subject to thermal contraction 70% to 75%, grid is sent into the pyrocondensation processing of shaping of horizontal baking oven; Enter winder from horizontal baking oven grid out, wherein, the glass fiber yarn of the horizontal grid of grid grid is bent upwards from both sides binding point the three-dimensional state that convexes to form grid.
8. one according to claim 7 is through compiling the solid native grid preparation method of the three-dimensional bank protection of polyester glass fibre, it is characterized in that, the glass fiber yarn of described longitudinal grid is at least one 800-2400tex alkali-free glass fibre yarn, described horizontal grid are rearranged upper at lower and one 800-2400tex alkali-free glass fibre yarn by one 300-500tex polyester fibers, or the horizontal grid of described grid are made up of in arranged on both sides at middle and two strands of 800-2400tex polyester fibers one 300-500tex glass fiber yarn.
9. one according to claim 7, through compiling the solid native grid preparation method of the three-dimensional bank protection of polyester glass fibre, is characterized in that, the temperature of carrying out pre-heating drying in described vertical drying oven is 115 DEG C to 125 DEG C, and the time of pre-heating drying is 9 to 11 minutes.
10. one according to claim 7, through compiling the solid native grid preparation method of the three-dimensional bank protection of polyester glass fibre, is characterized in that, the shape temperature of pyrocondensation processing of described horizontal baking oven is 165 DEG C to 175 DEG C, and the time of sizing pyrocondensation processing is 5 to 7 minutes.
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| CN105401442B (en) * | 2015-11-30 | 2018-02-06 | 泰安路德工程材料有限公司 | A kind of Coating Processes of superhigh molecular weight polyethylene fibers grid |
| CN105951555B (en) * | 2016-05-09 | 2018-01-23 | 山东大庚工程材料科技有限公司 | Enhanced roadbed earth grille and preparation method thereof |
| CN106192191B (en) * | 2016-08-19 | 2017-10-31 | 常州市宏发纵横新材料科技股份有限公司 | A kind of membrane structure building Peng Gai warp knit inlaid thread cloth and preparation method thereof |
| CN106245217B (en) * | 2016-08-19 | 2017-12-29 | 常州市宏发纵横新材料科技股份有限公司 | A kind of waterproof material warp knit inlaid thread cloth and preparation method thereof |
| CN109383053B (en) * | 2018-10-11 | 2021-01-26 | 安徽徽风新型合成材料有限公司 | High-toughness geogrid for culvert |
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| US4472086A (en) * | 1981-02-26 | 1984-09-18 | Burlington Industries Inc. | Geotextile fabric construction |
| CA2046021C (en) * | 1990-07-05 | 2001-09-04 | John Frederick Porter | Reinforcement for wall systems |
| US6171984B1 (en) * | 1997-12-03 | 2001-01-09 | Ppg Industries Ohio, Inc. | Fiber glass based geosynthetic material |
| CN2363878Y (en) * | 1998-12-29 | 2000-02-16 | 浙江锦达土工合成材料有限公司 | Warp-knitted composite geotextile |
| JP4419120B2 (en) * | 2004-02-16 | 2010-02-24 | 千葉 博子 | Male hook and loop fastener |
| GB0723611D0 (en) * | 2007-12-03 | 2008-01-09 | Dunlop Louisa J | Abrading material |
| CN101713120B (en) * | 2009-11-27 | 2011-05-04 | 天津工业大学 | Three-dimensional integral weaving method for grid type prefabricated part and product thereof |
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