CN105751651A - Production method of anti-layering foam sandwich composite plate - Google Patents
Production method of anti-layering foam sandwich composite plate Download PDFInfo
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- CN105751651A CN105751651A CN201610244381.7A CN201610244381A CN105751651A CN 105751651 A CN105751651 A CN 105751651A CN 201610244381 A CN201610244381 A CN 201610244381A CN 105751651 A CN105751651 A CN 105751651A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
- B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/38—Layered products comprising a layer of synthetic resin comprising epoxy resins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/42—Layered products comprising a layer of synthetic resin comprising condensation resins of aldehydes, e.g. with phenols, ureas or melamines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
Abstract
The invention discloses a production method of an anti-layering foam sandwich composite plate.The production method is characterized in that foaming materials are injected through a glue injecting cavity formed by convex-concave die assembly, the structural glue is used to coats the edge of the dies, a glue injecting opening and a glue outlet are sealed, and die assembly heating and the like are performed to form the foam-loop-embedded anti-layering foam sandwich composite plate.By the mutual embedding of hardened loops and the foaming materials, the anti-layering performance can be increased evidently, the comprehensive mechanical performances such as tensile resistance, pressing resistance, bending resistance and shearing resistance can be evidently increased at the same time.By the profile control of the dies and the die-attaching production process, the special-shaped curved-surface-structured sandwich composite plate can be produced.The anti-layering foam sandwich composite plate can be directly applied to structure support parts, thermal insulation and sound insulation plates, and the like.
Description
Technical field:
The present invention relates to technical field of composite materials, the preparation method being specifically related to a kind of anti-layering foam sandwich composite plate.
Background technology:
The problem that the skin material of foam sandwich composite plate material and foamed core material are easily layered, is the important indicator affecting the comprehensive serviceability of material.Compared with metal material (such as aluminium alloy), composite is when manufacturing or having an accident impact (instrument in flying bird, slungshot, hail, assembling process falls) in use, its internal delamination damage that easily appearance not easily observes, the safety of serious threat materials'use.Therefore, how improving the shock resistance lesion capability of composite is one of key technology of applying at the main force support structure such as wing, fuselage of composite.
There are some technical measures both at home and abroad, as fabric implants Xcore technology, knitting skill, suturing skill, needling technique etc. with foam suturing skill, pin.These technology or cost height, damage fiber, otherwise artificial participation is too much, and standardization level is relatively low, and product quality concordance is poor.
Summary of the invention:
It is an object of the invention to be in that to provide that a kind of moulding process is simple, be prone to standardized production, product quality concordance better, can significantly improve composite plate delamination resistance can and the preparation method of anti-layering foam sandwich composite plate of comprehensive mechanical property.
The present invention is achieved by the following technical solutions:
The preparation method of a kind of anti-layering foam sandwich composite plate, specifically comprises the following steps that
Step 1: bore the first through hole and the second through hole on the upper mold, mold is convex mold or negative mold, first through hole and the second through hole are positioned at die edge place, wherein the first through hole is as foaming into Jiao Kou, second through hole is as foaming gum exudation mouth, and the first through hole and the second through-hole diameter are identical, and diameter is 5mm～20mm, the inside and outside Skin Exit of the first through hole and the second through hole needs place to make chamfering or fillet processes, in order to inserts injected rubber hose and goes out sebific duct；
Step 2: coat releasing agent on negative mold surface or complete release cloth, repaste gel coat, by Circular Single Terry Machine fabric paving on mould, fabric smooth surface is affixed on die surface, and looped pile, facing to the open side of mould, dips in the resin compound containing firming agent with brush, uniformly brushing is on fabric, making the abundant barrier fabric of resin, treat that it solidifies substantially, the looped pile of solidification is vertical state；Releasing agent or the good release cloth of lay is coated on convex mold surface, repaste gel coat, by Circular Single Terry Machine fabric paving on mould, fabric smooth surface is affixed on die surface, and looped pile, facing to the open side of mould, dips in the resin compound containing firming agent with brush, uniformly brushing is on fabric, making the abundant barrier fabric of resin, treat that it solidifies substantially, the looped pile of solidification is vertical state；
Step 3: the drill bit of suitable diameter stretches into the first described through hole and the second through hole, gets through composite layer, removes chip；
Step 4: the edge's smearing structure glue before matched moulds, makes edge bonding by structure glue, and is encapsulated in by expanded material in the middle of knop cloth reinforced composite, by convex mold and negative mold matched moulds and fix, constitutes injecting glue cavity between upper and lower mould；
Step 5: enter Jiao Kou by the foaming of mold, injecting frothing material in injecting glue cavity, now foaming gum exudation mouth is in open mode；
Step 6: just filled expanded material in injecting glue cavity and when slightly glue overflows, the foaming of mold has been entered Jiao Kou and foaming gum exudation mouth closure is dead；
Step 7: edge is coated structure glue, fill expanded material, block the mould matched moulds extremely entering Jiao Kou and gum exudation mouth, now matched moulds is carried out hyperthermic treatment, obtain anti-layering foam sandwich composite plate, take out made anti-layering foam sandwich composite plate, with the drill bit of suitable diameter, gum-injecting port and gum exudation mouth are drilled through, clean out mould and through hole, reuse to facilitate.
Preferably, the expanded material described in step 5 is epoxy resin, phenolic resin, polyimides or polyurethane.
Preferably, described knop cloth is warp knitted terry fabric or weft knitting knop cloth or towel knop cloth.
Raised line material make eyelid covering and expanded material to make the composite plate of core be a kind of can give full play to the lightweight of bi-material characteristic, the structure of anti-layering or function sheet material.Except can being largely used to structural panel, also there is huge applications space in fields such as insulation, sound-absorbing sound insulation, suction ripple/wave transparents.
nullThe invention has the beneficial effects as follows: the preparation method of a kind of anti-layering foam sandwich composite plate of the present invention，Overcome the deficiency that expanded material sandwich composite board skin layer is easily layered with sandwich layer，There is provided a kind of special fibre fabric to add sticker mould lay and form skin material，By the injecting glue cavity injecting frothing material formed to convex concave mould matched moulds，Structure glue and seal pouring mouth and gum exudation mouth it is coated with by die edge，The operations such as matched moulds intensification，Form the anti-layering sandwich composite board that foam embeds mutually with looped pile，Embedded with the mutual of expanded material by the looped pile hardened，Delamination resistance energy can be significantly improved，Can also significantly improve simultaneously and draw、Pressure、Curved、The comprehensive mechanical property such as cut，Controlled by the profile of mould，Patch mould preparation technology，Abnormal curved surface structure sandwich composite board can be prepared into，Anti-layering foam sandwich composite plate can be directly used for structural support、Insulation、Sound-absorbing, resistant panels material etc..
Accompanying drawing illustrates:
Fig. 1 is the knop cloth of present invention lay structural representation in convex mold；
Fig. 2 is the knop cloth of present invention lay structural representation in negative mold；
Fig. 3 is the anti-layering foam sandwich composite plate structural representation after the matched moulds of the present invention.
Wherein, 1, negative mold；2, convex mold；3, the first through hole；4, the second through hole；5, structure glue adds fiber；6, lower knop cloth；7, upper knop cloth；8, expanded material；9, looped pile.
Detailed description of the invention:
Below in conjunction with embodiments of the invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment:
Step 1: as shown in Figure 1, convex mold 2 is bored two through holes, respectively the first through hole 3 and the second through hole 4, two through holes are positioned at die edge place, and wherein the first through hole 3 is as foaming into Jiao Kou, and the second through hole 4 is as foaming gum exudation mouth, two through-hole diameters are identical, diameter is 5mm～20mm, and the inside and outside Skin Exit of the first through hole 3 and the second through hole 4 needs place to make chamfering or fillet processes, in order to inserts injected rubber hose and goes out sebific duct；Two through holes can also be bored in negative mold 1.
Step 2: as depicted in figs. 1 and 2, coat releasing agent on negative mold 1 surface or complete release cloth, repasting gel coat, by carbon fiber Circular Single Terry Machine fabric paving on mould, fabric smooth surface is affixed on die surface, looped pile is facing to the open side of mould, dipping in the resin compound containing firming agent with brush, uniformly brushing is on fabric, makes the abundant barrier fabric of resin, treating that it solidifies substantially, the looped pile of solidification is vertical state；Releasing agent or the good release cloth of lay is coated on convex mold 2 surface, repaste gel coat, by carbon fiber Circular Single Terry Machine fabric paving on mould, fabric smooth surface is affixed on die surface, and looped pile, facing to the open side of mould, dips in the resin compound containing firming agent with brush, uniformly brushing is on fabric, making the abundant barrier fabric of resin, treat that it solidifies substantially, the looped pile of solidification is vertical state；The gel coat being coated with is epoxy resin or phenolic resin or polyimides or polyurethane (PU) etc. or thermoplastic polymer etc.；
Step 3: the drill bit of suitable diameter is stretched into above-mentioned two through hole, gets through composite layer, removes chip；
Step 4: edge's smearing structure glue before negative mold 1 with the 2-in-1 mould of convex mold and fiber 5, make edge bonding by structure glue, and expanded material is encapsulated in the middle of knop cloth reinforced composite, by convex mold 2 and negative mold 1 matched moulds and fix, between convex mold 2 and negative mold 1, constitute injecting glue cavity；
Step 5: entering Jiao Kou (the first through hole), injecting frothing material in injecting glue cavity by the foaming of convex mold 2, now foaming gum exudation mouth is in open mode；
Step 6: just filled expanded material in injecting glue cavity and when slightly glue overflows, enters Jiao Kou (the first through hole) and foaming gum exudation mouth (the second through hole) closure extremely by the foaming of convex mold；
Step 7: as shown in Figure 3, edge is coated structure glue, fill expanded material, block the mould matched moulds extremely entering Jiao Kou and gum exudation mouth, now matched moulds is carried out hyperthermic treatment, control blowing temperature and time well, obtain the anti-layering foam sandwich composite plate of required expansion density, described expanded material adopts polyester resin to add foaming agent, such as the resin compound being made up of isocyanates, polyhydric alcohol, it is also possible to for hard foam or thermoplastic polymer's expanded materials such as epoxy resin, phenolic resin, polyimides or polyurethane (PU)；The anti-layering foam sandwich composite plate of preparation, including upper knop cloth 7 and lower knop cloth 6, the centre of upper knop cloth 7 and lower knop cloth 6 is compounded with expanded material 8, and the looped pile 9 of described upper knop cloth 7 and lower knop cloth 6 embeds in expanded material 8；
Step 8: take out made anti-layering foam sandwich composite plate, with the drill bit of suitable diameter, gum-injecting port and gum exudation mouth are drilled through, clean out mould and through hole, reuse to facilitate.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. the preparation method of an anti-layering foam sandwich composite plate, it is characterised in that specifically comprise the following steps that
Step 1: bore the first through hole and the second through hole in convex mold or negative mold, the first described through hole and the second through hole are positioned at die edge place, and wherein the first through hole is as foaming into Jiao Kou, and the second through hole is as foaming gum exudation mouth, first through hole and the second through-hole diameter are identical, and diameter is 5mm～20mm；
Step 2: coat releasing agent on negative mold surface or complete release cloth, repaste gel coat, by Circular Single Terry Machine fabric paving on mould, fabric smooth surface is affixed on die surface, and looped pile, facing to the open side of mould, dips in the resin compound containing firming agent with brush, uniformly brushing is on fabric, making the abundant barrier fabric of resin, treat that it solidifies substantially, the looped pile of solidification is vertical state；Releasing agent or the good release cloth of lay is coated on convex mold surface, repaste gel coat, by Circular Single Terry Machine fabric paving on mould, fabric smooth surface is affixed on die surface, and looped pile, facing to the open side of mould, dips in the resin compound containing firming agent with brush, uniformly brushing is on fabric, making the abundant barrier fabric of resin, treat that it solidifies substantially, the looped pile of solidification is vertical state；
Step 3: the drill bit of suitable diameter stretches into the first described through hole and the second through hole, gets through composite layer, removes chip；
Step 4: the edge's smearing structure glue before matched moulds, makes edge bonding by structure glue, and is encapsulated in by expanded material in the middle of knop cloth reinforced composite, by convex mold and negative mold matched moulds and fix, constitutes injecting glue cavity between upper and lower mould；
Step 5: enter Jiao Kou by the foaming of mold, injecting frothing material in injecting glue cavity, now foaming gum exudation mouth is in open mode；
Step 6: just filled expanded material in injecting glue cavity and when slightly glue overflows, the foaming of mold has been entered Jiao Kou and foaming gum exudation mouth closure is dead；
Step 7: edge is coated structure glue, closure extremely enters the mould matched moulds of Jiao Kou and gum exudation mouth, now matched moulds is carried out hyperthermic treatment, obtain anti-layering foam sandwich composite plate, take out made anti-layering foam sandwich composite plate, with the drill bit of suitable diameter, gum-injecting port and gum exudation mouth are drilled through, clean out mould and through hole, reuse to facilitate.
2. the preparation method of anti-layering foam sandwich composite plate according to claim 1, it is characterised in that: the expanded material described in step 5 is epoxy resin, phenolic resin, polyimides or polyurethane.
3. the preparation method of anti-layering foam sandwich composite plate according to claim 1, it is characterised in that: described knop cloth is warp knitted terry fabric or weft knitting knop cloth or towel knop cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244381.7A CN105751651A (en) | 2016-04-18 | 2016-04-18 | Production method of anti-layering foam sandwich composite plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244381.7A CN105751651A (en) | 2016-04-18 | 2016-04-18 | Production method of anti-layering foam sandwich composite plate |
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| CN105751651A true CN105751651A (en) | 2016-07-13 |
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| CN201610244381.7A Pending CN105751651A (en) | 2016-04-18 | 2016-04-18 | Production method of anti-layering foam sandwich composite plate |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107053698A (en) * | 2016-12-19 | 2017-08-18 | 广东亚太新材料科技有限公司 | A kind of preparation method of the anti-layering foam core filled composite material plate material of pile |
| CN108544809A (en) * | 2018-03-29 | 2018-09-18 | 江苏赛菲新材料有限公司 | A kind of sandwich structure composite material and preparation method thereof |
| CN110524757A (en) * | 2019-08-07 | 2019-12-03 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | The flat-plate molded mold of PMI foam core and its application method |
| CN110978672A (en) * | 2019-12-17 | 2020-04-10 | 南京工程学院 | Integrally formed sandwich structure and process |
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| CN105365143A (en) * | 2015-11-20 | 2016-03-02 | 奇瑞汽车股份有限公司 | On-line foam forming method for composite material sandwich structure |
| CN105442811A (en) * | 2015-12-02 | 2016-03-30 | 中材科技股份有限公司 | Heat insulation decoration plate and preparation method thereof |
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| CN101630774A (en) * | 2009-08-07 | 2010-01-20 | 北京玻钢院复合材料有限公司 | Glass steel radar cover single element and forming method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107053698A (en) * | 2016-12-19 | 2017-08-18 | 广东亚太新材料科技有限公司 | A kind of preparation method of the anti-layering foam core filled composite material plate material of pile |
| CN108544809A (en) * | 2018-03-29 | 2018-09-18 | 江苏赛菲新材料有限公司 | A kind of sandwich structure composite material and preparation method thereof |
| CN110524757A (en) * | 2019-08-07 | 2019-12-03 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | The flat-plate molded mold of PMI foam core and its application method |
| CN110978672A (en) * | 2019-12-17 | 2020-04-10 | 南京工程学院 | Integrally formed sandwich structure and process |
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