CN104963071B - A kind of fibre reinforced structure for composite and knitting method - Google Patents
A kind of fibre reinforced structure for composite and knitting method Download PDFInfo
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- CN104963071B CN104963071B CN201510447942.9A CN201510447942A CN104963071B CN 104963071 B CN104963071 B CN 104963071B CN 201510447942 A CN201510447942 A CN 201510447942A CN 104963071 B CN104963071 B CN 104963071B
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Abstract
The invention discloses a kind of fibre reinforced structure for composite, this composite is that the following material using parts by weights meter is made: carbon fiber 50 55%, phenolic aldehyde 18 25%, nitrile rubber 22.5 30%, the thickness of this composite is 6 8mm；And carbon fiber therein exists with weft-knitting structure.Time knitting, select the specifications and models of carbon fiber by carbon fiber thickness after knitting, then use Computerized flat knitting machine to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 2N ~ 36N.Owing to carbon fiber have employed weft-knitting structure, this composite can increase substantially the anti-yaw damper performance of material, maintains the rubber elastomer characteristics needed for adiabator.This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Description
Technical field
The invention belongs to electromotor heat insulation layer material preparation method, be specifically related to a kind of fibre reinforced structure for composite and knitting method.
Background technology
In the preparation process of solid propellant rocket heat insulation layer material, in order to improve the scour resistance of material, common practice is the reinforcing material adding in the material and improving scour resistance, and such as asbestos, carbon fiber and aramid fiber etc., wherein the effect with carbon fiber is the most obvious.Now widely used 5-VI material is exactly that chopped carbon fiber strengthens rubber-base composite material, and its ablating rate is less than the level of 0.06mm/s, but the problems such as material heterogeneity, anisotropy, profile poor stability leak the most in the application.In order to solve these problems, can take to be woven into carbon fiber the network structure of continuous uniform, become the reinforcement of composite；Base rubber is uniformly distributed in each position again.At present, the fibrage method of reinforcing material has plain weave, twill, satin weave carbon cloth, two dimension half, 3 D weaving body etc., these products the most do not possess the elastomeric nature that heat insulation layer moulding process needs, elongation percentage ratio is relatively low, elongation percentage laterally and longitudinally is all below 10%, and can not transmit the pressure of rubber pneumatic bag, causes heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface.Especially improve further when the technology of electromotor, it is desirable to the necessary one-shot forming of this material, and when required thickness is more than more than 5mm, then difficulty is bigger.
Summary of the invention
The present invention provides a kind of fibre reinforced structure for composite and knitting method and preparation method thereof, to reach flushing resistance and the superior purpose of productibility.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of fibre reinforced structure for composite, this composite is that the following material using parts by weights meter is made: carbon fiber 50-55%, phenolic aldehyde 18-25%, nitrile rubber 22.5-30%, the thickness of this composite is 6-8mm；And carbon fiber therein exists with weft-knitting structure.
Described composite is that the following material using parts by weights meter is made: described weft-knitting structure is latitude plain stitch, rib construction or purl stitch.Wherein use and preferably employ latitude plain stitch or rib construction, the elasticity of material can be improved further, especially when scantling is thicker.
Described carbon fiber specification is 1K, 3K, 6K or 12K.
The knitting method of the described fibre reinforced structure for composite, concretely comprises the following steps:
Select the specifications and models of carbon fiber, then use Computerized flat knitting machine to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 2N ~ 36N.
By reasonably controlling fibre bundle tensile force, the mechanical property of material can be improved.
The specification of described Computerized flat knitting machine is 3 pins, 5 pins, 12 pins；14 pins or 16 pins.
The technological problems softening by spraying ethanol to play and preventing fiber weakness from rupturing during braiding.
During braiding, the electrical equipment in residing space and circuit all use technological processing for explosion protection feature, it is to avoid the short circuit that carbon fiber fly causes.
The carbon fiber for composite that the present invention provides, for fibre-reinforced composite, its elasticity is the most weak, especially when scantling is thicker, the present invention have employed weft-knitting structure due to carbon fiber, purl stitch, latitude plain stitch, rib construction, make full use of its construction features, can improve the elasticity of material.Purl stitch, longitudinal elasticity and ductility are relatively big, have the yielding of the elastic feature close with extensibility of vertical, horizontal, latitude plain stitch and rib construction, and transversely deforming, more than longitudinally, has bigger elasticity and extensibility when cross directional stretch.When using latitude plain stitch and rib construction structure, the most superior to thicker material property.Therefore, on the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, on the other hand maintains the rubber elastomer characteristics needed for adiabator.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the weft-knitting structure using latitude plain stitch；
Fig. 3 is the weft-knitting structure using rib construction；
Fig. 4 is for using links-and-links weft-knitting structure.
Detailed description of the invention
Further illustrate the present invention below in conjunction with embodiment and accompanying drawing 1-4, but the scope of protection of present invention is not limited to the scope of embodiment statement.
Embodiment 1: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 50%, phenolic aldehyde 25%, nitrile rubber 25%, the thickness of this composite is 8mm；Wherein carbon fiber uses the weft-knitting structure of latitude plain stitch to exist.
Its concrete weaving method is:
Select the specifications and models (1K) of carbon fiber, then use Computerized flat knitting machine (3 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 26N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.03mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the most relatively longitudinal direction of material is yielding, transversely deforming is more than longitudinally, there is bigger elasticity and extensibility when cross directional stretch, horizontal expansion rate is 40%, longitudinal extension rate is 35%, during use, the pressure of rubber pneumatic bag be can effectively transmit, heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface solved.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 2: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 50%, phenolic aldehyde 25%, nitrile rubber 25%, the thickness of this composite is 8mm；Wherein carbon fiber uses the weft-knitting structure of latitude plain stitch to exist.
Its concrete weaving method is:
Select the specifications and models (6K) of carbon fiber, then use Computerized flat knitting machine (12 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 20N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.02mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the most relatively longitudinal direction of material is yielding, transversely deforming is more than longitudinally, there is bigger elasticity and extensibility when cross directional stretch, horizontal expansion rate is 44%, longitudinal extension rate is 39%, during use, the pressure of rubber pneumatic bag be can effectively transmit, heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface solved.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 3: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 50%, phenolic aldehyde 25%, nitrile rubber 25%, the thickness of this composite is 8mm；Wherein carbon fiber uses the weft-knitting structure of latitude plain stitch to exist.
Its concrete weaving method is:
Select the specifications and models (12K) of carbon fiber, then use Computerized flat knitting machine (16 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 10N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.02mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the most relatively longitudinal direction of material is yielding, transversely deforming is more than longitudinally, there is bigger elasticity and extensibility when cross directional stretch, horizontal expansion rate is 43%, longitudinal extension rate is 41%, during use, the pressure of rubber pneumatic bag be can effectively transmit, heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface solved.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 4: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 53%, phenolic aldehyde 28%, nitrile rubber 29%, the thickness of this composite is 8mm；Wherein carbon fiber uses the weft-knitting structure of rib construction to exist.
Its concrete weaving method is:
Select the specifications and models (12K) of carbon fiber, then use Computerized flat knitting machine (16 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 10N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.01mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the most relatively longitudinal direction of material is yielding, transversely deforming is more than longitudinally, there is bigger elasticity and extensibility when cross directional stretch, horizontal expansion rate is 40%, longitudinal extension rate is 35%, during use, the pressure of rubber pneumatic bag be can effectively transmit, heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface solved.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 5: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 53%, phenolic aldehyde 28%, nitrile rubber 29%, the thickness of this composite is 8mm；Wherein carbon fiber uses the weft-knitting structure of rib construction to exist.
Its concrete weaving method is:
Select the specifications and models (1K) of carbon fiber, then use Computerized flat knitting machine (16 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 10N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.02mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the most relatively longitudinal direction of material is yielding, transversely deforming is more than longitudinally, there is bigger elasticity and extensibility when cross directional stretch, horizontal expansion rate is 47%, longitudinal extension rate is 45%, during use, the pressure of rubber pneumatic bag be can effectively transmit, heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface solved.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 6: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 53%, phenolic aldehyde 28%, nitrile rubber 29%, the thickness of this composite is 8mm；Wherein carbon fiber uses the weft-knitting structure of rib construction to exist.
Its concrete weaving method is:
Select the specifications and models (12K) of carbon fiber, then use Computerized flat knitting machine (12 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 30N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.01mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the most relatively longitudinal direction of material is yielding, transversely deforming is more than longitudinally, there is bigger elasticity and extensibility when cross directional stretch, horizontal expansion rate is 50%, longitudinal extension rate is 45%, during use, the pressure of rubber pneumatic bag be can effectively transmit, heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface solved.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 7: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 55%, phenolic aldehyde 25%, nitrile rubber 20%, the thickness of this composite is 6mm；Wherein carbon fiber uses links-and-links weft-knitting structure to exist.
Its concrete weaving method is:
Select the specifications and models (12K) of carbon fiber, then use Computerized flat knitting machine (16 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 10N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.02mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the longitudinal elasticity of material and ductility are relatively big, have the elastic feature close with extensibility of vertical, horizontal, and horizontal expansion rate is 40%, longitudinal extension rate is 41%, during use, it is possible to effectively transmit the pressure of rubber pneumatic bag, solve heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 8: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 55%, phenolic aldehyde 25%, nitrile rubber 20%, the thickness of this composite is 6mm；Wherein carbon fiber uses links-and-links weft-knitting structure to exist.
Its concrete weaving method is:
Select the specifications and models (12K) of carbon fiber, then use Computerized flat knitting machine (16 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 10N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.02mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the longitudinal elasticity of material and ductility are relatively big, have the elastic feature close with extensibility of vertical, horizontal, and horizontal expansion rate is 44%, longitudinal extension rate is 45%, during use, it is possible to effectively transmit the pressure of rubber pneumatic bag, solve heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 9: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 55%, phenolic aldehyde 25%, nitrile rubber 20%, the thickness of this composite is 6mm；Wherein carbon fiber uses links-and-links weft-knitting structure to exist.
Its concrete weaving method is:
Select the specifications and models (12K) of carbon fiber, then use Computerized flat knitting machine (16 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 10N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.01mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the longitudinal elasticity of material and ductility are relatively big, have the elastic feature close with extensibility of vertical, horizontal, and horizontal expansion rate is 48%, longitudinal extension rate is 47%, during use, it is possible to effectively transmit the pressure of rubber pneumatic bag, solve heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Embodiment 10: a kind of fibre reinforced structure for composite, this composite is to use following material by mass percentage to make: carbon fiber 55%, phenolic aldehyde 25%, nitrile rubber 20%, the thickness of this composite is 7mm；Wherein carbon fiber uses links-and-links weft-knitting structure to exist.
Its concrete weaving method is:
Select the specifications and models (1K) of carbon fiber, then use Computerized flat knitting machine (12 pin) to be woven into weft-knitting structure, during braiding, on carbon fiber, spray ethanol, and control fibre bundle tensile force: 8N.
On the one hand this fibre reinforced structure can increase substantially the anti-yaw damper performance of material, ablating rate is 0.02mm/s, on the other hand the rubber elastomer characteristics needed for adiabator is maintained, the longitudinal elasticity of material and ductility are relatively big, have the elastic feature close with extensibility of vertical, horizontal, and horizontal expansion rate is 50%, longitudinal extension rate is 49%, during use, it is possible to effectively transmit the pressure of rubber pneumatic bag, solve heat insulation layer interface layer and the bonding defect of heat insulation layer/shell interface.
This composite is after electromotor heat insulation layer, and product quality meets design requirement, thoroughly solves the quality fault that heat insulation layer lost efficacy, is the most applied in multiple products, has passed through test examination.
Claims (3)
1., for a fibre reinforced structure for composite, this composite is that the following material using parts by weights meter is made: carbon fiber 50-55%, phenolic aldehyde 18-25%, nitrile rubber 22.5-30%, it is characterised in that: the thickness of this composite is 6-8mm；And carbon fiber therein exists with weft-knitting structure；Described weft-knitting structure is rib construction or purl stitch；
The concrete knitting method of this carbon fiber is: select the specifications and models of carbon fiber, then uses Computerized flat knitting machine to be woven into weft-knitting structure, sprays ethanol, and control fibre bundle tensile force: 2N ~ 36N during braiding on carbon fiber.
Structure the most according to claim 1, it is characterised in that: described carbon fiber specification is 1K, 3K, 6K or 12K.
Structure the most according to claim 1, it is characterised in that: the specification of described Computerized flat knitting machine is 3 pins, 5 pins, 12 pins；14 pins or 16 pins.
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| CN106968047A (en) * | 2017-03-23 | 2017-07-21 | 上海题桥纺织染纱有限公司 | A kind of rigid warming sandwich air layer face fabric and preparation method thereof of HMLS terylene |
| CN106928512A (en) * | 2017-04-11 | 2017-07-07 | 湖北三江航天江河化工科技有限公司 | A kind of silicon carbide fibre strengthens nitrile rubber and preparation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1473132A2 (en) * | 2003-05-02 | 2004-11-03 | The Boeing Company | Highly porous interlayers to toughen liquid-molded fabric-based composites |
| US7048985B2 (en) * | 2001-07-23 | 2006-05-23 | Vrac, Llc | Three-dimensional spacer fabric resin infusion media and reinforcing composite lamina |
| CN101208191A (en) * | 2005-06-24 | 2008-06-25 | 斯奈克玛 | Reinforcing fibrous structure for a composite material and a part containing said structure |
| JP2010089394A (en) * | 2008-10-08 | 2010-04-22 | Nisshin Steel Co Ltd | Plate-like composite material and long fiber knitted sheet |
| CN102943339A (en) * | 2012-09-24 | 2013-02-27 | 上海飞机制造有限公司 | Three-dimensional carbon fiber fabric structure |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7048985B2 (en) * | 2001-07-23 | 2006-05-23 | Vrac, Llc | Three-dimensional spacer fabric resin infusion media and reinforcing composite lamina |
| EP1473132A2 (en) * | 2003-05-02 | 2004-11-03 | The Boeing Company | Highly porous interlayers to toughen liquid-molded fabric-based composites |
| CN101208191A (en) * | 2005-06-24 | 2008-06-25 | 斯奈克玛 | Reinforcing fibrous structure for a composite material and a part containing said structure |
| JP2010089394A (en) * | 2008-10-08 | 2010-04-22 | Nisshin Steel Co Ltd | Plate-like composite material and long fiber knitted sheet |
| CN102943339A (en) * | 2012-09-24 | 2013-02-27 | 上海飞机制造有限公司 | Three-dimensional carbon fiber fabric structure |
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Inventor after: Zhu Jialin Inventor after: Zhao Bijuan Inventor after: Shu Kaikai Inventor after: Hu Xiaoliang Inventor after: Song Yanpeng Inventor after: Zeng Chuning Inventor after: Zhou Rui Inventor after: Chen Yongzhao Inventor after: Cui Ruixi Inventor after: Hu Qiuming Inventor after: Liu Meizhen Inventor after: Chi Shuping Inventor after: Wang Fei Inventor after: Xu Hongju Inventor after: Zhou Bo Inventor before: Zhu Jialin Inventor before: Hu Xiaoliang Inventor before: Song Yanpeng Inventor before: Zeng Chuning Inventor before: Zhou Rui Inventor before: Chen Yongzhao Inventor before: Cui Ruixi Inventor before: Liu Meizhen Inventor before: Chi Shuping Inventor before: Xu Hongju Inventor before: Zhou Bo Inventor before: Zhao Bijuan Inventor before: Shu Kaikai |
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