CN101787764B - Light warp-knitted spacer fabric building composite material and preparation method thereof - Google Patents
Light warp-knitted spacer fabric building composite material and preparation method thereof Download PDFInfo
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- CN101787764B CN101787764B CN2010101116492A CN201010111649A CN101787764B CN 101787764 B CN101787764 B CN 101787764B CN 2010101116492 A CN2010101116492 A CN 2010101116492A CN 201010111649 A CN201010111649 A CN 201010111649A CN 101787764 B CN101787764 B CN 101787764B
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- 125000006850 spacer group Chemical group 0.000 title claims abstract description 97
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 82
- 229920005989 resin Polymers 0.000 claims abstract description 82
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 40
- 210000002615 epidermis Anatomy 0.000 claims description 19
- 229920001721 polyimide Polymers 0.000 claims description 11
- 238000013461 design Methods 0.000 claims description 5
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
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- 239000004566 building material Substances 0.000 description 5
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- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
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- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
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- 239000011491 glass wool Substances 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N hydrochloric acid Substances Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a light warp-knitted spacer fabric building composite material and a preparation method thereof, and relates to a building composite material. The light warp-knitted spacer fabric building composite material is warp-knitted spacer fabric, wherein the upper surface of the warp-knitted spacer fabric is covered with an upper-surface resin layer; the lower surface of the warp-knitted spacer fabric is covered with a lower-surface resin layer; and the periphery of the warp-knitted spacer fabric is covered with a peripheral resin layer. Before the warp-knitted spacer fabric is put into a closed mould, the inner surface of the mould is sprayed with a layer of mould release agent until a clearly visible film is formed on the inner surface of the mould, and then the warp-knitted spacer fabric is put into the mould, wherein the size of the mould is determined according to the size of the warp-knitted spacer fabric. The preparation method comprises: injecting a setting agent onto the warp-knitted spacer fabric; obtaining the set warp-knitted spacer fabric; injecting resin onto the upper surface, lower surface and periphery of the set warp-knitted spacer fabric; allowing the resin to fully cover and adhere to the upper surface, lower surface and periphery of the warp-knitted spacer fabric; and heating and curing the obtained product to obtain the light warp-knitted spacer fabric building composite material.
Description
Technical field
The present invention relates to a kind of composite building material, especially relate to a kind of light warp-knitted spacer fabric building composite material and preparation method thereof.
Background technology
Existing composite building material adopts materials such as concrete, pulverized coal dregs, dry mortar usually.
Chinese patent CN1046009 discloses a kind of composite building material, mainly is to be 60%～90% with content, and granularity is the magnesian aqueous solution of 20～200 purposes, alkali-free glass wool (or cloth), and sawdust, industrial sulphuric acid is formed by a certain percentage.
Chinese patent CN1148036 discloses a kind of high strength corrosion resistant composite building material and production method thereof; It by pollopas, ammonium chloride, magnesium metal, silica, dry powder, medium-alkali glass fiber cloth, asbestos, oxalic acid, hydrochloric acid compound according to a certain ratio after; Itself and the layering of medium-alkali glass fiber cloth alternately are superimposed upon several layers in the mould; Paste one deck resin molding again, and place the interior demoulding of specific environment to become a useful person.
Chinese patent CN1528580 discloses a kind of fiber reinforcement composite building material and preparation method; Do the adhering and solidifying agent by the modified magnesium cementitious compositions; Metallic grid is made framework material; Straw comprises that cotton stalk and thick long fibre work strengthen insulation material, through the composite casting extrusion forming, make building element materials such as integral wall floor and roof.The modified magnesium cementitious compositions is to be mixed with by magnesia powder, magnesium chloride powder, phosphoric acid, neutral papermaking wastewater common brick powder.Can be used for low-rise building, earthquake-prone region civil buildings, frame structure building on the middle and senior level.
Warp-knitted spacer fabric is a kind of new material, existing relevant report.
Chinese patent CN101037827 discloses the formation method that a kind of morphological stability with the interval yarn improves the warp-knitted spacer fabric of compressive property.It forms on double rib warp loom, and its process is: fill up the yarn feeding line separately with the sley bar of the knitting needle that corresponds respectively to forward and backward needle-bar and on each needle-bar, form the chaining structure organization; With the sley bar of tricot machine middle part the knitting needle one to one of front and back needle-bar being filled up the yarn feeding line in turn carries out front and back and connects braiding; Promptly cross-over connection is carried out in the chaining of front and back needle-bar, formed the trapezoidal banded structure that a rule independently has certain width with certain spacing distance; Horizontal be connected motion with needle-bar before corresponding respectively to and back needle-bed knitting needle sley bar to what the knitting needle of needle-bar separately carried out selectable inlaid thread or lopping mode; The independently strip chaining that laterally is not connected that each needle-bar is woven into is connected to the eyed structure tissue in position in twos; The part that chaining in twos links to each other just becomes the cylinder of eyelet stitch; And disjunct part just can stretch the eyelet that becomes eyelet stitch, and this just has a rule the trapezoidal banded structure of certain width connect into to have the integrally-built cabinet-type mesh WARP-KNITTING of thickness; To horizontal connection sley bar; Taking all factors into consideration cooperatively interacting of two needle-bars wears yarn; The mesh that is woven into of needle-bar laterally becomes interconnected state at fabric before and after letting; Make interval yarn that the chaining that the front and back needle-bed knitting needle is woven into carries out cross-over connection each other the geometric shape on fabric cross section become continuous " W " shape, reach the purpose of anti-pressure ability of morphological stability and space fabric of the interval yarn of raising.
Chinese patent CN2923763 discloses a kind of at the warp-knitted spacer fabric that is connected with the resiliency supported wall up and down between the fabric of top layer; Have upper epidermis and following top layer; Upper epidermis is the hollow out pattern fabric with following top layer, and upper epidermis has node with following top layer hollow out pattern edge, and upper epidermis and following table interlayer are connected with the partition adjustable layer; The partition adjustable layer is made up of the partition adjustable tow, and partition adjustable tow and upper epidermis are affixed at the node place with following top layer.
The Beijing Research Inst. of Aeronautic Material (Beijing Research Inst. of Aeronautic Material. warm setting agent and RTM precast body performance thereof in a kind of. material engineering; 2006,3) studied the mixing serviceability (like compatibility, rheological characteristic and hot property etc.) of the RTM special epoxy resin 3266 of ES-T321 setting agent and pairing thereof.ES-T321 can be prepared into acetone soln or powder sizing material, and is easy to use.The fusing point of ES-T321 is higher than the RTM injection temperature window of 3266 resins, has the moving performance of flushing of anti-current preferably, and the fabric that can guarantee to finalize the design is not broken up when resin injection.ES-T321 can be dissolved in the resin under the solidification temperature of 3266 resins, and with the reaction of 3266 curing agent.Add the hot property almost not influence of setting agent to the mixed with resin system.The spring-back effect of the preform that typing is handled is little, and the resilience of the preform of solwution method typing is littler than powder method.
(WUYUN Qi-qige YI Xiao-Su.RESEARCH ON THE TACKIFIER FORRTM BISMALEIMIDE-BASED RESIN.Fiber Reinforced Plastics/Composites such as WUYUN Qi-qige; 2008,5) state, rheological property, gel time and the hot property of ES-T541 setting agent are analyzed.And, hot property, curing reaction and the carbon fibre composite Effect on Performance of bismaleimide resin are studied the compatibility of ES-T541 typing punishment and the special-purpose bismaleimide resin of RTM.Result of study shows that the ES-T541 setting agent can be used solwution method and powder method typing fiber, and the compatible bismaleimide resin of ability does not have negative effect to resin and composite property.
Summary of the invention
The object of the present invention is to provide a kind of novel building composite, i.e. light warp-knitted spacer fabric building composite material and preparation method thereof.
Said light warp-knitted spacer fabric building composite material is a warp-knitted spacer fabric; Upper surface at warp-knitted spacer fabric covers the upper surface resin bed; Lower surface at warp-knitted spacer fabric covers the lower surface resin bed, around warp-knitted spacer fabric, covers the peripheral resin layer.
The thickness of said warp-knitted spacer fabric is preferably 6～20mm, and said resin can adopt the EP resin, the BMI resin, or the PI resin etc.Said EP resin can adopt temperature epoxy in 3266 (EP) resin etc., and said BMI resin can adopt 6421 high temperature BMI (BMI) resins etc., and said PI resin can adopt 9731 high temperature polyimide (PI) resin etc.
The thickness of said upper surface resin bed is preferably 0.5～5mm, and the thickness of said lower surface resin bed is preferably 0.5～5mm, and the thickness of said peripheral resin layer is preferably 2～8mm.
The preparation method of said light warp-knitted spacer fabric building composite material may further comprise the steps:
1) before warp-knitted spacer fabric is put into close die, with mould endosexine spraying one deck releasing agent, till the mould endosexine forms the apparent film of one deck, then warp-knitted spacer fabric is put into mould earlier; Size is confirmed according to the size of warp-knitted spacer fabric.
2) on warp-knitted spacer fabric, inject setting agent, the warp-knitted spacer fabric after must finalizing the design;
3) upper epidermis of the warp-knitted spacer fabric after typing, down top layer and injecting resin all around, the upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down are heating and curing again, promptly obtain light warp-knitted spacer fabric building composite material.
In step 1), said releasing agent can adopt the SPMRA releasing agent; Said mould can adopt the fiberglass aluminum alloy materials.
In step 2) in, said setting agent can adopt setting agent, and said setting agent can adopt the RTM setting agent, RTM setting agent such as ES-T321 setting agent or ES-T541 setting agent etc.; The temperature of said typing can be 80～125 ℃, and the consumption of said setting agent can account for 3%～8% of warp-knitted spacer fabric gross mass.
In step 3), the temperature of said heating can be 80～90 ℃; Said resin can adopt temperature epoxy in 3266 (EP) resin, 6421 high temperature BMI (BMI) resins, or 9731 high temperature polyimide (PI) resin etc.; The upper epidermis of said warp-knitted spacer fabric after typing, down top layer and injecting resin all around, the upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down are heating and curing again, can adopt following method:
Inject or add under the vacuum aided condition at pressure; Liquid resin is flowed in close die remove gas side by side, soak into and flood dry state warp-knitted spacer fabric surface fiber structure simultaneously, after the completion fabric face soaks into dipping fully; Heating; Make resin in mould, cause cross-linking reaction and accomplish curing, after the demoulding, obtain the light warp-knitted spacer fabric building composite material of moulding through heat.Saidly inject or add under the vacuum aided condition at pressure, preferably controlling temperature is 45 ℃.
The light warp-knitted spacer fabric building composite material of processing can be processed into the light warp-knitted spacer fabric building composite material member; Its processing method can be polished the edge of light warp-knitted spacer fabric building composite material through cutting, promptly be processed into the light warp-knitted spacer fabric building composite material member.
Because said light warp-knitted spacer fabric building composite material adopts light warp-knitted spacer fabric as the basic model body; Adopt setting agent that warp-knitted spacer fabric is finalized the design earlier; The upper epidermis of the warp-knitted spacer fabric after typing, down top layer and injecting resin all around then; The upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down; And through being heating and curing, therefore resulting light warp-knitted spacer fabric building composite material not only can guarantee the fastness of its use, and possesses the original surperficial mesh of warp-knitted spacer fabric; Have light weight and ventilated effect, the peripheral resin of the light warp-knitted spacer fabric building composite material member that is made into simultaneously forms the surface of smooth and beautiful appearance after the cutting polishing is handled.
Light warp-knitted spacer fabric building composite material according to the invention can be applied in aspects such as materials for wall, flooring material, ceiling material and office screen.
Description of drawings
Fig. 1 forms sketch map for the structure of light warp-knitted spacer fabric building composite material of the present invention.
The specific embodiment
Following examples will combine accompanying drawing that the present invention is further described.
Referring to Fig. 1, light warp-knitted spacer fabric building composite material is a warp-knitted spacer fabric, at the upper surface of warp-knitted spacer fabric 1, lower surface and covering resin layer 2 all around.The thickness of warp-knitted spacer fabric is 6～20mm, and resin can adopt temperature epoxy in 3266 (EP) resin, 6421 high temperature BMI (BMI) resins, or 9731 high temperature polyimide (PI) resin etc.
The thickness of upper surface resin bed is 0.5～5mm, and the thickness of lower surface resin bed is 0.5～5mm, and the thickness of peripheral resin layer is 2～8mm.
Below provide the preparation method of said light warp-knitted spacer fabric building composite material, concrete steps are following:
1) before warp-knitted spacer fabric is put into close die, with mould endosexine spraying one deck releasing agent, releasing agent can adopt the SPMRA releasing agent, till the mould endosexine forms the apparent film of one deck, then warp-knitted spacer fabric is put into mould earlier; Said mould can adopt the fiberglass aluminum alloy materials, and size is confirmed according to the size of warp-knitted spacer fabric.
2) on warp-knitted spacer fabric, inject setting agent, the warp-knitted spacer fabric after must finalizing the design.Said setting agent adopts RTM setting agent (RTM is the abbreviation of Resin Transfer Molding, refers to the resin transfer moulding, is called for short RTM), and the RTM setting agent can adopt ES-T321 setting agent or ES-T541 setting agent etc.; The temperature of said typing is 80～125 ℃, and the consumption of said setting agent accounts for 3%～8% of warp-knitted spacer fabric gross mass.
3) upper epidermis of the warp-knitted spacer fabric after typing, down top layer and injecting resin all around, the upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down are heating and curing again, promptly obtain light warp-knitted spacer fabric building composite material.The upper epidermis of said warp-knitted spacer fabric after typing, down top layer and injecting resin all around, the upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down are heating and curing again, can adopt following method:
In temperature is 45 ℃; Adopt pressure to inject or add under the vacuum aided condition, liquid resin is flowed in close die remove gas side by side, soak into and flood the upper epidermis of dry state warp-knitted spacer fabric, following top layer and injecting resin all around simultaneously; The upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down; After the completion fabric face soaks into dipping fully, be heated to 80～90 ℃, make resin in mould, cause cross-linking reaction and accomplish curing through heat; After the demoulding, obtain the light warp-knitted spacer fabric building composite material of moulding.Said resin can adopt temperature epoxy in 3266 (EP) resin, 6421 high temperature BMI (BMI) resins, or 9731 high temperature polyimide (PI) resin etc.
The light warp-knitted spacer fabric building composite material of processing can be processed into the light warp-knitted spacer fabric building composite material member; Its processing method can be polished the edge of light warp-knitted spacer fabric building composite material through cutting, promptly be processed into the light warp-knitted spacer fabric building composite material member.
Claims (5)
1. light warp-knitted spacer fabric building composite material is characterized in that being warp-knitted spacer fabric, at the upper surface covering upper surface resin bed of warp-knitted spacer fabric; Lower surface at warp-knitted spacer fabric covers the lower surface resin bed, around warp-knitted spacer fabric, covers the peripheral resin layer, and the thickness of said warp-knitted spacer fabric is 6～20mm; Said resin adopts the EP resin; BMI resin, or PI resin, the thickness of said upper surface resin bed are 0.5～5mm; The thickness of said lower surface resin bed is 0.5～5mm, and the thickness of said peripheral resin layer is 2～8mm.
2. light warp-knitted spacer fabric building composite material as claimed in claim 1; It is characterized in that said EP resin adopts temperature epoxy resin in 3266; Said BMI resin adopts 6421 high temperature bimaleimide resins, and said PI resin adopts 9731 high temperature polyimide resins.
3. the preparation method of light warp-knitted spacer fabric building composite material as claimed in claim 1 is characterized in that may further comprise the steps:
1) before warp-knitted spacer fabric is put into close die, with mould endosexine spraying one deck releasing agent, till the mould endosexine forms the apparent film of one deck, then warp-knitted spacer fabric is put into mould earlier; Size confirms that according to the size of warp-knitted spacer fabric said releasing agent adopts the SPMRA releasing agent; Said mould adopts the fiberglass aluminum alloy materials;
2) on warp-knitted spacer fabric, inject setting agent, the warp-knitted spacer fabric after must finalizing the design, said setting agent adopts the RTM setting agent, and the RTM setting agent is ES-T321 setting agent or ES-T541 setting agent;
3) upper epidermis of the warp-knitted spacer fabric after typing, down top layer and injecting resin all around, the upper epidermis that resin is fully covered adhere to warp-knitted spacer fabric, top layer and all around down are heating and curing again, promptly obtain light warp-knitted spacer fabric building composite material.
4. the preparation method of light warp-knitted spacer fabric building composite material as claimed in claim 3 is characterized in that in step 2) in, the temperature of said typing is 80～125 ℃, the consumption of said setting agent accounts for 3%～8% of warp-knitted spacer fabric gross mass.
5. the preparation method of light warp-knitted spacer fabric building composite material as claimed in claim 3 is characterized in that in step 3), and the temperature of said heating is 80～90 ℃.
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| CN103835473A (en) * | 2014-03-04 | 2014-06-04 | 杨太立 | Wood floor tongue-and-groove and bottom waterproofing technique |
| CN105014984B (en) * | 2015-06-09 | 2019-08-06 | 福建福联精编有限公司 | Three-dimensional warp knitting space fabric impact resistant composite material and the preparation method and application thereof |
| CN106381608A (en) * | 2016-11-10 | 2017-02-08 | 特大纺织制品（深圳）有限公司 | Three-dimensional weaving belt |
| CN109497678A (en) * | 2018-11-30 | 2019-03-22 | 福建福联精编有限公司 | Seamless knitted Environmental composite shopping bag and preparation method thereof |
| CN111960843A (en) * | 2020-08-31 | 2020-11-20 | 陕西美兰德炭素有限责任公司 | Method for shaping carbon fiber preform |
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