CN103865144A - Mesh type three-dimensional woven grid fabric reinforced lightweight plate and preparation method thereof - Google Patents
Mesh type three-dimensional woven grid fabric reinforced lightweight plate and preparation method thereof Download PDFInfo
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- CN103865144A CN103865144A CN201210536539.XA CN201210536539A CN103865144A CN 103865144 A CN103865144 A CN 103865144A CN 201210536539 A CN201210536539 A CN 201210536539A CN 103865144 A CN103865144 A CN 103865144A
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- B29D7/00—Producing flat articles, e.g. films or sheets
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- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
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- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
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- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
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Abstract
The invention relates to a mesh type three-dimensional woven fabric reinforced lightweight plate and a preparation method thereof. The mesh type three-dimensional woven fabric reinforced lightweight plate adopts a mesh type three-dimensional woven grid fabric having the whole structure as a reinforced skeleton, and is prepared through the following steps: weaving a mesh type three-dimensional woven grid fabric, placing the obtained mesh type three-dimensional woven grid fabric into a mold of a foaming device as a skeleton, and adopting a known foam plastic foaming process to prepare the reinforced foam plate. The reinforced foam plate can be soft or hard according to the selected foaming material and the process.
Description
Affiliated technical field
The present invention relates to a kind of light weight board and preparation method thereof, light weight board that especially a kind of eyelet type three-dimensional woven fabric has strengthened and preparation method thereof.
Background technology
Foamy structure is the effective means of material high-strength light, and wherein, foam board is a kind of primary structure form of light material.
Due to not only light weight of foamy structure, and there is good heat insulation, sound insulation, damping and energy absorption, therefore all there is very wide application prospect at engineering fields such as aerospace, land transportation, sea-freight, machinery, the energy, building, packings.
Desirable foam materials, in actual applications, in particular for the foam of high-tech sector, also requires the Static and dynamic compressive strength, impulse intensity and rigidity, dimensional stability and the higher resistance to fracture that have had.But existing foam materials, particularly uses to obtain the foam board that has a large capacity and a wide range, aspect requiring more than meeting, not very desirable.This be because, foam board generally occurs in two ways at present, the one, made without the pure foam material strengthening through foam process by foaming polymer material, its structural form is except can be sheet material, it can also be the form of distortion of sheet material, as section bar etc., another is that foaming polymer material is made through foam process as packing material, its construction profile is by the decision that is filled body, that is to say, if foam board form just must be filled body as mould take the much smaller plate shape of Thickness Ratio length and width.No matter any mode, all exists weak point, and the former is because be the pure foam material that there is no reinforcement, and mechanical property can not be done highlyer, has affected its purposes at structured material, especially in the expansion of high-tech sector application; The latter is because being filled the restriction of body, the smooth expansion of impact foaming and to being filled comprehensive filling-foam of body, this be because its thickness compared with cause little and that length and width size is larger.
So foam board is applied to the thinking of development and the direction that just become foam industry can not affect reinforcement that foaming carries out smoothly.From improving final performance, this reinforcement preferably can adopt glass fibre or be raw material such as the contour performance fibers of carbon fiber, and fabric is the common form of the aggregate of this fiber material.
At present, known foam board yet there are no the relevant report that this kind fabric strengthens.
Summary of the invention
In order to make up the weak point of above-mentioned existing foam materials, the invention provides a kind of eyelet type three-dimensional woven rack fabric and strengthen light weight board and preparation method thereof.Because textile materials is fibrous material, and fibrous material has more advantage making full use of of mechanical property than the material of bulk or body shape, so, strongthener using fiber and fabric thereof as foam board, particularly will be suitable for glass fibre, the woven fabrics of the contour performance fibers weaving of carbon fiber is prepared foam board as the reinforcement of foam board just becomes object of the present invention, and this kind of woven fabrics also must be applicable to the requirement of the industrialization production of the foaming of foam board: can be by foamed so that the mode of fabric coating is produced efficiently, rather than carry out inner mode of filling from aperture or small cross-section and foam.
The technical solution adopted for the present invention to solve the technical problems and step are: in foam board, have integrally-built eyelet type three-dimensional woven rack fabric and strengthen skeleton as it.This fabric or upper and lower top layer are the weave construction of eyelet type, and have access node through upper and lower top layer being connected in the mode of bridging upper surface layer and undersurface layer to the fabric of overall eyelet type three-dimensional grid structure; Or only the one deck in upper epidermis or lower top layer is eyelet type weave construction, and another top layer is the plane connective tissue structure of non-eyelet type, and there is access node through upper and lower top layer being connected in the mode of bridging upper surface layer and undersurface layer to the fabric of overall eyelet type three-dimensional grid structure; Wherein, access node through can V-type or W type mode of connection upper and lower two upper layers are carried out to integrated spaced connection.The preparation method of this enhancement type foam board is prepared with following step: be first on woven fabric machine, to weave eyelet type three-dimensional woven rack fabric, then be skeleton by the mould of weaving fabric after lower machine and put into foaming machine, make enhancement type foam board by the foam process of known porous plastics or foamed cement, foam phenolic aldehyde.This frostproof froth n. technique can be flexible foam plate foaming process, can be also hard structure foam board foam process.Flexible foam plate foaming process is first eyelet type three-dimensional woven rack textile armature to be put into after the mould of foaming machine, and then take PE, EVA plastics, SBR, CR rubber as foaming polymer material, catalyzer, suds-stabilizing agent and whipping agent in addition, makes the technique of soft enhancement type foam board by common physical blowing or crosslinked foaming technique; Hard structure foam board foam process is first eyelet type three-dimensional woven rack textile armature to be put into after the mould of foaming machine, and then take PVC, PET plastics as basis, make the technique of the structural foam sheet material of enhancement type by the aromatic amides converging network correction running through.
The invention has the beneficial effects as follows, adopt the eyelet type woven fabrics that is applicable to high-performance fiber weaving to make reinforcement, this not only makes the industry of the foam board of the little thickness of large size produce the possibility that becomes a reality, and make this foam board there is good mechanical property, especially bend resistance fracture, anti-shear performance etc., improved rigidity, distortion restorability and shock resistance and the damage tolerance thereof of sheet material.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of the eyelet type three-dimensional woven rack fabric of the embodiment of the present invention 1.
Fig. 2 is the schematic diagram that the top layer of the warp thread amphi-position warp thread in the eyelet type three-dimensional woven rack fabric of the embodiment of the present invention amphi-position fetters.
Fig. 3 is the schematic diagram of a cell structure unit in the eyelet type three-dimensional woven rack fabric of the embodiment of the present invention.
Fig. 4 is the structural representation of the eyelet type three-dimensional woven rack fabric of the embodiment of the present invention 2.
Fig. 5 is the schematic diagram of the foam board of the eyelet type three-dimensional woven rack fabric enhancing of the embodiment of the present invention 2.
The upper surface layer of 1. three-dimensional woven rack fabrics in figure, the 2. undersurface layer of three-dimensional woven rack fabric, 3. the access node warp of three-dimensional woven rack fabric, 11. common warp thread, 12. weft yarns, 13. warp thread amphi-position, the real latitude of A. region, B. crapand region, C. empty through region, D. passes region, the thickness of h. three-dimensional woven rack fabric, f. foams, V. access node is through the vertebra cylinder of 3 formations.
Embodiment
Embodiment 1: CR (chloroprene rubber) the flexible foam sheet material that eyelet type three-dimensional woven rack strengthens.
The present embodiment is that thickness is eyelet type three-dimensional woven rack fabric reinforced CR (chloroprene rubber) the flexible foam sheet material of 22 millimeters.
The preparation method of the embodiment of the present invention comprises two large steps: be first the weaving of eyelet type three-dimensional woven rack fabric, be then only the flexible foam preparation of plates strengthening with this.
The weaving of the eyelet type three-dimensional woven rack fabric of the present embodiment is as follows:
It is that the eyelet type three-dimensional woven rack fabric of 20 millimeters is as the reinforcement of foam board, weaving on woven fabric machine that the present embodiment is selected thickness h.Its woven fabric structure as shown in Figure 1, be that upper epidermis 1 and lower top layer 2 are eyelet type weave construction, and have access node through 3 modes with bridging upper surface layer 1 and undersurface layer 2, upper and lower top layer 1,2 to be connected into the fabric of the overall eyelet type three-dimensional grid structure shown in Fig. 1.As shown in Figure 1, in the present embodiment, the eyelet of upper layer 1 and undersurface layer 2 is contraposition distributing style.In the present embodiment, through weft yarn and access node through all selecting 1200tex roving E glass fibre.
Difficulty in the realization of the eyelet type three-dimensional woven rack fabric of the present embodiment is how to form the eyelet type weave construction on upper epidermis 1 and lower top layer 2, and the key of formation top layer eyelet type weave construction is how the warp thread on fabric top layer is relatively brought together and to be drawn close.To this, the solution of the present embodiment is to adopt the mode of constraint amphi-position to reach this purpose.
In Fig. 2, represent the woven fabric structure that the warp thread amphi-position 13 of the present embodiment fetters the warp thread 11 of upper epidermis 1 amphi-position, it in the present embodiment, is " 1 across 3 plain weaves " structure, concrete is, by every amphi-position warp thread 13 bring by mode amphi-position the common warp thread 11 of drawing close together and have 3, and these 3 common warp thread 11 are made the sink-float up and down of plain weave rule each other, intersect and intert with weft yarn 12 in this way; Correspondingly, amphi-position warp thread 13 not only also has with weft yarn 12 and intersects the sink-float up and down of interting, and simultaneously also along with the carrying out of weaving, also strides across 3 back and forth traversing through position in the fabric width direction of fabric; Result is, this amphi-position warp thread 13 intersect and intert simultaneously with weft yarn 12, each root wherein amphi-position warp thread 13 by it 3 common warp thread 11 between amphi-position laterally to carry out left and right at fabric spacing.Roughly the same upper epidermis 1 of the woven fabric structure that the warp thread on lower top layer 2 amphi-position fetters, narration is omitted.
In Fig. 3, represent the formation method of a cell structure unit of the upper epidermis 1 of the eyelet type three-dimensional woven rack fabric of the present embodiment.In fabric width direction, the upper epidermis of fabric 1 is divided into the sky that passes region D and do not pass yarn normally passing through region C, amphi-position warp thread 13 and common warp thread 11 are spaced in groups like this, in figure, region D is " the passing region " of having arranged one group of warp thread, warp thread in this region is pressed " 1 across the 3 plain weaves " structural arrangement shown in Fig. 1, and in figure, region C is " empty through region " of not arranging any warp thread; At length direction, the upper epidermis of fabric 1 is divided into weft yarn 12 and carries out the real latitude region A of normal wefting insertion and the crapand region B of leader tape weft yarn 12 not, like this weft yarn 12 is spaced in groups, in figure, region A is " the real latitude region " of having arranged one group of weft yarn, and in figure, region B is " the crapand region " of not arranging any weft yarn; So, just form a grid cell of the upper epidermis 1 of eyelet type three-dimensional woven rack fabric.Sky has determined the size of eyelet through the width of region C and the length of crapand region B, can design on demand easily.Roughly the same upper epidermis 1 of the formation method of the cell structure unit on the lower top layer 2 of eyelet type three-dimensional woven rack fabric, narration is omitted.
The enhancement type flexible foam preparation of plates of the present embodiment is as follows:
Foam formulation: 100kg chloroprene rubber (CR), 10kg dark substitute, 27kg carbon black, 1.3kgAflux25,3.3kg paraffin, 180kg kaolin, 20kg naphthenic oil, 33kg perfume oil, 9kg dinitrosopentamethylene tetramine, 13kg zinc oxide, 6.7kg magnesium oxide, 1.2kgN, N '-diethyl thiourea, 1.2kg ethylene thiourea, 4.7kg urea fat, 1.3kg Tyox B, 2kg2,2 '-methylene-bis (4-methyl-6-tert-butylphenol), 3.3kg Vaseline.
Foaming step:
1) by chloroprene rubber, dark substitute, carbon black, dispersion agent, paraffin mixing 400s in pressure initial refining machine;
2) by the mixing 400s in mill of the material after mixing;
3) wait together according to the order of powder, finish, sizing material mixing 400s in pressure initial refining machine with other batchings again;
4), by the mixing 420s in mill of the material after mixing, slice is for forcing machine feeding;
5) first by eyelet type three-dimensional woven rack fabric good weaving according to putting into mould after the size cutting of mould, and then material after previous step is mixing is sent into forcing machine and is expressed in the mould that is placed with reinforced fabric;
6) mould that contains reinforced fabric and material is delivered to First moulded from foam machine and carried out one step foaming sulfuration, the time is 30min, obtains one step foaming body;
7) one step foaming body is then delivered to second moulded from foam machine and carried out second time of foaming sulfuration, the time is 25min, obtains second time of foaming body;
8) second time of foaming body is cooled to die sinking after room temperature and obtains the finished product of the CR flexible foam sheet material that eyelet type three-dimensional woven rack strengthens.
Embodiment 2: hard PVC (polyvinyl chloride) the structural foam sheet material that eyelet type three-dimensional woven rack strengthens.
The present embodiment is that thickness is eyelet type three-dimensional woven rack fabric reinforced hard PVC (polyvinyl chloride) structural foam panels of 26 millimeters.
The preparation method's of the present embodiment step is: first weaving eyelet type three-dimensional woven rack fabric, then prepare enhancement type hard structural foam sheet material with this.
The weaving of the eyelet type three-dimensional woven rack fabric of the present embodiment is as follows:
It is that the eyelet type three-dimensional woven rack fabric of 24 millimeters is as the reinforcement of foam board that the present embodiment is selected thickness h, weaving on woven fabric machine, its woven fabric structure as shown in Figure 4, be that upper epidermis 1 and lower top layer 2 are eyelet type weave construction, and have access node through 3 modes with bridging upper surface layer 1 and undersurface layer 2, upper and lower top layer 1,2 to be connected into the fabric of overall eyelet type three-dimensional grid structure.As shown in Figure 4, in the present embodiment, position distributing style between the eyelet of upper surface layer 1 and undersurface layer 2 is.Upper left in Fig. 5 has represented upper surface layer 1 and undersurface layer 2 and a position superposed state of fabric, what solid line represented is the upper surface layer 1 of cell structure, what dotted line represented is the undersurface layer 2 of cell structure, though the eyelet on visible upper and lower top layer 1,2 size is identical, is alternate configuration status at broadwise and the warp-wise of fabric.The object of this position distributing style is to improve the compressive property of fabric, because upper epidermis 1 and lower top layer 2 are linked to be to integrally-built access node through 3 mutual composition stability and all good vertebra cylinder V of crushing resistance, figure (1) in Fig. 4 has represented 1 vertebra cylinder V, and figure (2) in Fig. 4 has represented 4 adjacent vertebra cylinder V, figure (3) in Fig. 4 has represented the connection state of adjacent 4 vertebra cylinder V and upper and lower surface layer 1,2, and position between 4 eyelets of 1 eyelet of upper surface layer 1 and undersurface layer 2 is linked together.In the present embodiment, through weft yarn and access node through all selecting 800tex roving E glass fibre.
Difficulty between the eyelet of the present embodiment in the realization of the eyelet type three-dimensional woven rack fabric of position distributing style and solution are with embodiment 1, and narration is omitted.
The Enhanced Configuration foam board of the present embodiment be prepared as following steps:
(1) in mixing machine, mix solid-liquid raw material, until mix, obtain pasty mixture;
(2) first by eyelet type three-dimensional woven rack fabric good weaving according to putting into mould after the size cutting of mould, and then the pasty mixture that step (1) is obtained is poured in mould, under certain temperature and pressure, whipping agent is decomposed completely, obtain containing the shape die briquetting that partly foams strengthening as skeleton take eyelet type three-dimensional woven rack fabric, in this process, because the top layer of this fabric is cell structure, make the pasty mixture can be without difficulty by complete fabric submergence wherein;
(3) cooling enhancement type partly foams shape mold pressing thing to room temperature;
(4) cooling enhancement type step (3) the being obtained shape mold pressing thing that partly foams is placed in hot water bath or steam, expands until final density;
(5) the work in-process cool to room temperature of expansion step (4) being obtained, then adopts hot water spray or in steam, solidifies aftertreatment, reacts remaining isocyanic ester, the tabular crosslinked polyvinyl chloride structural foam that obtains being cured.
In above-mentioned steps (2), at a certain temperature, whipping agent generation decomposition reaction, polyvinyl chloride generation gel reaction.Under certain pressure, chemical foaming agent decomposes the gas dissolvings such as the nitrogen of generation in gel polyvinyl chloride, forms tiny complex.Gel reaction carries out under the gelling temp of polyvinyl chloride, and temperature range is 160-180 ℃: pressure range is 12-20MPa.
In above-mentioned steps (2), described mould is aluminium-making mould.
In above-mentioned steps (4), due to the existence of moisture, the shape mold pressing thing that partly foams expands and crosslinking reaction simultaneously.Main chemical reaction is the reaction between a series of mixtures such as water, isocyanic ester, acid anhydrides and triaizine compounds.The reaction that most probable occurs is that isocyanic ester reacts formation amine and atmospheric carbon dioxide with water.
More specifically formula and the technique of the present embodiment are as follows:
In the mixture of solid-liquid raw material, comprise polyvinyl chloride double centner, 45 kilograms of tolylene diisocyanates, 15 kilograms of diphenylmethanediisocyanates, 1 kilogram of epoxy Yatall MA, 6.2 kilograms of azobisisobutyronitriles, 1.8 kilograms of Cellmic C 121s, 3.8 kilograms of benzoguanamines, 21.5 kilograms of HHPAs.In mixing machine, be uniformly mixed until evenly, obtain the pasty mixture of certain viscosity.Formerly by eyelet type three-dimensional woven rack fabric good weaving according to after putting into thickness after the size cutting of mould and being the aluminium-making mould of 26 millimeters, more just pasty mixture is poured in mould, fills up mould.Placed between the press flat board of 160 ℃ and heat, pressure is 14MPa.Mixture is cool to room temperature and taking-up under pressure, obtains the cooling shape mold pressing thing that partly foams.Then, the shape mold pressing thing that will partly foam is positioned in steam drying box and expands 6 hours, and vapor temperature is 92 ℃ ± 2 ℃.After cooling, in the steam drying box of 55 ℃, solidify aftertreatment 10 days, isocyanic ester is reacted fully, just obtain thus the hard PVC structural foam sheet material that eyelet type three-dimensional woven rack fabric as shown in Figure 1 strengthens, as shown in Figure 5.The right part of Fig. 5 is divided into the longitudinal cross-section of foam board, the bottom of Fig. 5 is divided into the lateral cross of foam board, on cross section from Fig. 5, foam f is embedded into the levels 1,2 of eyelet type three-dimensional woven rack fabric and connection yarn 3 wherein, and eyelet type three-dimensional woven rack fabric becomes the enhancing skeleton of foam board.
Embodiment 3: hard PVC (polyvinyl chloride) the structural foam sheet material that eyelet type three-dimensional woven rack strengthens.
The preparation method of the embodiment of the present invention comprises two large steps: be first the weaving of eyelet type eyelet type three-dimensional woven fabric, be then only as the preparation of the structural foam sheet material of reinforcement.
The thickness h that the present embodiment selects upper and lower top layer to be eyelet be the eyelet type three-dimensional woven fabric of 25 millimeters as the reinforcement of foam board, its woven fabric structure as shown in Figure 1, is only done following narration to the preparation of Enhanced Configuration foam board at this:
The Enhanced Configuration foam board of the present embodiment be prepared as following steps:
(1) in mixing machine, mix solid-liquid raw material, until mix, obtain pasty mixture;
(2) first by eyelet type three-dimensional woven fabric good weaving according to putting into mould after the size cutting of mould, and then the pasty mixture that step (1) is obtained is poured in mould, under certain temperature and pressure, whipping agent is decomposed completely, obtain containing the shape die briquetting that partly foams strengthening take eyelet type three-dimensional woven fabric as skeleton, in this process, because the top layer of eyelet type three-dimensional woven fabric is cell structure, make the pasty mixture can be without difficulty by complete fabric submergence wherein:
(3) cooling enhancement type partly foams shape mold pressing thing to room temperature;
(4) cooling enhancement type step (3) the being obtained shape mold pressing thing that partly foams is placed in hot water bath or steam, expands until final density;
(5) the work in-process cool to room temperature of expansion step (4) being obtained, then adopts hot water spray or in steam, solidifies aftertreatment, reacts remaining isocyanic ester, the block or tabular crosslinked polyvinyl chloride structural foam that obtains being cured.
In above-mentioned steps (2), at a certain temperature, whipping agent generation decomposition reaction, polyvinyl chloride generation gel reaction.Under certain pressure, chemical foaming agent decomposes the gas dissolvings such as the nitrogen of generation in gel polyvinyl chloride, forms tiny complex.Gel reaction carries out under the gelling temp of polyvinyl chloride, and temperature range is 160-180 ℃: pressure range is 12-20MPa.
In above-mentioned steps (2), described mould is steel die.
In above-mentioned steps (4), due to the existence of moisture, the shape mold pressing thing that partly foams expands and crosslinking reaction simultaneously.Main chemical reaction is the reaction between a series of mixtures such as water, isocyanic ester, acid anhydrides and triaizine compounds.The reaction that most probable occurs is that isocyanic ester reacts formation amine and atmospheric carbon dioxide with water
More specifically formula and the technique of the present embodiment are as follows:
In the mixture of solid-liquid raw material, comprise polyvinyl chloride double centner, liquefaction ditan-4,66 kilograms of 4-' vulcabond, 12.6 kilograms of poly methylene poly phenyl poly isocyanates, 1.6 kilograms of epoxy soybean oils, 7.0 kilograms of azo-bis-isobutyl cyanides, 1.8 kilograms of Cellmic C 121s, 3.0 kilograms of trimeric cyanamides, 20.6 kilograms of methyl hexahydrophthalic anhydrides, 1.2 kilograms, tensio-active agent.In mixing machine, be uniformly mixed until evenly, obtain the pasty mixture of certain viscosity.Formerly by eyelet type three-dimensional woven fabric good weaving according to after putting into thickness after the size cutting of mould and being the steel die of 28 millimeters, more just pasty mixture is poured mould into, fills up mould.Then placed between the press flat board of 175 ℃ and heat, pressure is 14MPa.Mixture is cool to room temperature and taking-up under pressure, obtains the cooling shape mold pressing thing that partly foams.Then, the shape mold pressing thing that will partly foam is positioned in steam drying box and expands 6 hours, and vapor temperature is 2 ℃, 93 ℃ of soil.After cooling, solidify aftertreatment 5 days in the steam drying box of 65 ℃, isocyanic ester is reacted fully, just obtain thus the hard PVC structural foam sheet material by the eyelet type three-dimensional woven fabric enhancing of Fig. 1, this sheet material as shown in Figure 2.Foam f in Fig. 2 is embedded into the levels 1,2 of eyelet type three-dimensional woven fabric and connection yarn 3 wherein, and eyelet type three-dimensional woven fabric becomes the enhancing skeleton of foam board.
Embodiment 4: the phenolic resin foamed board material that eyelet type three-dimensional woven rack strengthens.
The present embodiment is that thickness is the eyelet type three-dimensional woven rack fabric reinforced phenolic resin foamed board of 26 millimeters.
The preparation method's of the present embodiment step is: first weaving eyelet type three-dimensional woven rack fabric, then prepare enhancement type foam board with this.
The weaving of the eyelet type three-dimensional woven rack fabric of the present embodiment is as follows:
It is that the eyelet type three-dimensional woven rack fabric of 50 millimeters is as the reinforcement of foam board that the present embodiment is selected thickness h, weaving on woven fabric machine, its woven fabric structure as shown in Figure 4, be that upper epidermis 1 and lower top layer 2 are eyelet type weave construction, and have access node through 3 modes with bridging upper surface layer 1 and undersurface layer 2, upper and lower top layer 1,2 to be connected into the fabric of overall eyelet type three-dimensional grid structure.As shown in Figure 4, in the present embodiment, position distributing style between the eyelet of upper surface layer 1 and undersurface layer 2 is.Upper left in Fig. 5 has represented upper surface layer 1 and undersurface layer 2 and a position superposed state of fabric, what solid line represented is the upper surface layer 1 of cell structure, what dotted line represented is the undersurface layer 2 of cell structure, though the eyelet on visible upper and lower top layer 1,2 size is identical, is alternate configuration status at broadwise and the warp-wise of fabric.The object of this position distributing style is to improve the compressive property of fabric, because upper epidermis 1 and lower top layer 2 are linked to be to integrally-built access node through 3 mutual composition stability and all good vertebra cylinder V of crushing resistance, figure (1) in Fig. 4 has represented 1 vertebra cylinder V, and figure (2) in Fig. 4 has represented 4 adjacent vertebra cylinder V, figure (3) in Fig. 4 has represented the connection state of adjacent 4 vertebra cylinder V and upper and lower surface layer 1,2, and position between 4 eyelets of 1 eyelet of upper surface layer 1 and undersurface layer 2 is linked together.In the present embodiment, through weft yarn and access node through all selecting 800tex roving E glass fibre.
Difficulty between the eyelet of the present embodiment in the realization of the eyelet type three-dimensional woven rack fabric of position distributing style and solution are with embodiment 1, and narration is omitted.
The Enhanced Configuration foam board of the present embodiment be prepared as following steps:
First carry out according to the following formulation the configuration of phenolic resin foam.
Phenolic resin foam formula
Then foam and prepare sheet material.Resol, whipping agent, suds-stabilizing agent, properties-correcting agent, toughner are added in stirring tank according to certain ratio, about 30min slowly stirs under churned mechanically condition, add catalyzer, stir rapidly, be cast in the three-dimensional woven skeleton of advancing continuously, enter temperature and be in the crawler belt forming machine of 60 ℃ one 80 ℃ and solidify, cutting after solidifying, so just can obtain the closed-cell foam of outward appearance uniform and smooth.
Embodiment 5: the cement foam sheet material that eyelet type three-dimensional woven rack strengthens.
The present embodiment is that thickness is the eyelet type three-dimensional woven rack fabric reinforced cement-foam panel of 30 millimeters.
The preparation method's of the present embodiment step is: first weaving eyelet type three-dimensional woven rack fabric, then prepare enhanced cement foam board with this.
The weaving of the eyelet type three-dimensional woven rack fabric of the present embodiment is as follows:
It is that the eyelet type three-dimensional woven rack fabric of 30 millimeters is as the reinforcement of foam board that the present embodiment is selected thickness h, weaving on woven fabric machine, its woven fabric structure as shown in Figure 4, be that upper epidermis 1 and lower top layer 2 are eyelet type weave construction, and have access node through 3 modes with bridging upper surface layer 1 and undersurface layer 2, upper and lower top layer 1,2 to be connected into the fabric of overall eyelet type three-dimensional grid structure.As shown in Figure 4, in the present embodiment, position distributing style between the eyelet of upper surface layer 1 and undersurface layer 2 is.Upper left in Fig. 5 has represented upper surface layer 1 and undersurface layer 2 and a position superposed state of fabric, what solid line represented is the upper surface layer 1 of cell structure, what dotted line represented is the undersurface layer 2 of cell structure, though the eyelet on visible upper and lower top layer 1,2 size is identical, is alternate configuration status at broadwise and the warp-wise of fabric.The object of this position distributing style is to improve the compressive property of fabric, because upper epidermis 1 and lower top layer 2 are linked to be to integrally-built access node through 3 mutual composition stability and all good vertebra cylinder V of crushing resistance, figure (1) in Fig. 4 has represented 1 vertebra cylinder V, and figure (2) in Fig. 4 has represented 4 adjacent vertebra cylinder V, figure (3) in Fig. 4 has represented the connection state of adjacent 4 vertebra cylinder V and upper and lower surface layer 1,2, and position between 4 eyelets of 1 eyelet of upper surface layer 1 and undersurface layer 2 is linked together.In the present embodiment, through weft yarn and access node through all selecting 2400tex roving E glass fibre.
Difficulty between the eyelet of the present embodiment in the realization of the eyelet type three-dimensional woven rack fabric of position distributing style and solution are with embodiment 1, and narration is omitted.
The Enhanced Configuration cement foam sheet material of the present embodiment be prepared as following steps:
First carry out according to the following formulation the configuration of quick hardening sulphoaluminate cement foam.
Then foam and prepare sheet material.Quick hardening sulphoaluminate cement, whipping agent, suds-stabilizing agent, properties-correcting agent, toughner are added in stirring tank according to certain ratio, about 30min slowly stirs under churned mechanically condition, add catalyzer, stir rapidly, be cast in the three-dimensional woven skeleton of advancing continuously, enter temperature and be in the crawler belt forming machine of 60 ℃ one 80 ℃ and solidify, cutting after solidifying, so just can obtain cement foam sheet material.
Claims (7)
1. the light weight board that eyelet type three-dimensional woven fabric has strengthened, by making through foam process by foam material, is characterized in that: in foam board, have integrally-built eyelet type three-dimensional woven rack fabric and strengthen skeleton as it.
2. the light weight board having strengthened according to eyelet type three-dimensional woven fabric claimed in claim 1, it is characterized in that: the eyelet type three-dimensional woven rack fabric as skeleton is that upper and lower top layer is eyelet type weave construction, and have access node through upper and lower top layer being connected in the mode of bridging upper surface layer and undersurface layer to the fabric of overall eyelet type three-dimensional grid structure.
3. the light weight board that eyelet type three-dimensional woven fabric according to claim 1 has strengthened, it is characterized in that: be that only the one deck in upper epidermis or lower top layer is eyelet type weave construction as the eyelet type three-dimensional woven rack fabric of skeleton, and another top layer is the plane connective tissue structure of non-eyelet type, and there is access node through upper and lower top layer being connected in the mode of bridging upper surface layer and undersurface layer to the fabric of overall eyelet type three-dimensional grid structure.
4. the light weight board that eyelet type three-dimensional woven fabric according to claim 1 has strengthened, is characterized in that: access node is through carrying out interval connection with V-type or W type mode of connection to upper and lower two upper layers.
5. the preparation method of the light weight board that an eyelet type three-dimensional woven fabric claimed in claim 1 has strengthened, it is characterized in that: be prepared with following step, first be on woven fabric machine, to weave eyelet type three-dimensional woven rack fabric, then be skeleton by the mould of weaving eyelet type three-dimensional woven rack fabric after lower machine and put into foaming machine, make enhancement type foam board by known foam plastic foaming technique.
6. the preparation method of the light weight board that eyelet type three-dimensional woven fabric according to claim 5 has strengthened, it is characterized in that: known foam plastic foaming technique is flexible foam plate foaming process, be first eyelet type three-dimensional woven rack textile armature to be put into after the mould of foaming machine, and then take PE, EVA plastics, SBR, CR rubber as foaming polymer material, catalyzer, suds-stabilizing agent and whipping agent in addition, makes the technique of soft enhancement type foam board by common physical blowing or crosslinked foaming technique.
7. the preparation method of the light weight board having strengthened according to the eyelet type three-dimensional woven fabric of claim 5, it is characterized in that: foam plastic foaming technique is structural foam sheet material foam process, be first eyelet type three-dimensional woven rack textile armature to be put into after the mould of foaming machine, and then take PVC, PET plastics as basis, make the technique of Enhanced Configuration foam board by the aromatic amides converging network correction running through.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711080A (en) * | 2014-12-01 | 2016-06-29 | 中国航空工业集团公司第六三一研究所 | Overhead heightening device skeleton filling type reinforcing method |
| CN107083019A (en) * | 2017-04-14 | 2017-08-22 | 武汉理工大学 | A kind of sound insulation composite material and preparation method thereof |
| CN108018986A (en) * | 2017-12-13 | 2018-05-11 | 成都思纳誉联建筑设计有限公司 | A kind of structure and half prefabricated Side fascia of energy saving integrated and its construction method |
| CN111349312A (en) * | 2018-12-24 | 2020-06-30 | 湖南莱科新材料科技有限公司 | Fiber reinforced structural foam material with three-dimensional network structure |
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2012
- 2012-12-13 CN CN201210536539.XA patent/CN103865144A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711080A (en) * | 2014-12-01 | 2016-06-29 | 中国航空工业集团公司第六三一研究所 | Overhead heightening device skeleton filling type reinforcing method |
| CN107083019A (en) * | 2017-04-14 | 2017-08-22 | 武汉理工大学 | A kind of sound insulation composite material and preparation method thereof |
| CN107083019B (en) * | 2017-04-14 | 2020-01-31 | 武汉理工大学 | sound insulation composite material and preparation method thereof |
| CN108018986A (en) * | 2017-12-13 | 2018-05-11 | 成都思纳誉联建筑设计有限公司 | A kind of structure and half prefabricated Side fascia of energy saving integrated and its construction method |
| CN108018986B (en) * | 2017-12-13 | 2020-01-21 | 成都思纳誉联建筑设计有限公司 | Structure and energy-saving integrated semi-fabricated prefabricated external wall panel and construction method thereof |
| CN111349312A (en) * | 2018-12-24 | 2020-06-30 | 湖南莱科新材料科技有限公司 | Fiber reinforced structural foam material with three-dimensional network structure |
| CN111349312B (en) * | 2018-12-24 | 2024-03-15 | 湖南莱科新材料科技有限公司 | Fiber reinforced structural foam material with three-dimensional network structure |
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Application publication date: 20140618 |