CN101152747A - Method for producing product by combination of continuous fibre reinforced nylon and metal - Google Patents
Method for producing product by combination of continuous fibre reinforced nylon and metal Download PDFInfo
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- CN101152747A CN101152747A CNA2006101165971A CN200610116597A CN101152747A CN 101152747 A CN101152747 A CN 101152747A CN A2006101165971 A CNA2006101165971 A CN A2006101165971A CN 200610116597 A CN200610116597 A CN 200610116597A CN 101152747 A CN101152747 A CN 101152747A
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Abstract
The present invention relates to a continuous fiber reinforcing nylon and a metal parts preparation method. The method is that: a processed metal plate is placed at the bottom of a mold; the fiber with the same area with the metal plate is placed on the top of the metal plate; the mould is sealed and heated to the required temperature for the reacting of a monomer; the dehydrated caprolactam liquid is melted in the vacuum, or proper toughening agent is added into the vacuum, which is heated to a given temperature to be melted and mixed to get the mixed liquid. The mixed liquid is poured into the mould at certain temperature and kept reacting for 5 to 30 minutes, then the temperature is reduced, the mould is stripped, and the product is gained. Compared with the prior art, the present invention is characterized by simple technique, convenient and good interface mixing of the fiber and interface of the body.
Description
Technical field
It is compound to the present invention relates to a kind of fiber reinforced nylon and metal material, prepares the method for composite product.This method makes nylon 6 monomers at the metal surface in-situ polymerization, the composite parts of one-shot forming nylon 6 and metal.
Background technology
Monomer cast nylon (MC nylon) material, it generally is the monomer caprolactam, through vacuum dehydration, heating reaction moulding makes, have characteristics such as polymerization temperature is low, technology is simple, degree of crystallinity is high, molecular weight is big, abrasion performance, self-lubricating, serviceability temperature wider range, be the comparatively desirable substitution material of non-ferrous metal such as copper, aluminium, have the shortcoming that toughness is relatively poor, impact strength is on the low side but compare with metal material.
The method that solves the problem of poor toughness mainly contains three kinds: first kind is to add plasticizer; Second kind is to develop new catalyst or select the polyfunctional group co-catalyst for use; The third is a modification by copolymerization, at present often adopt the modification of block copolymerization method, " long-chain active agent " that promptly adopts a kind of end group to be activated, and cause the anionic polymerisation of caprolactam with this, finally obtain polyamide block copolymer.This block copolymer is intensity, rigidity, modulus, hear resistance, wearability of being provided by the polyamide hard segment material etc.; And by soft section impact, pliability and the low temperature properties etc. that material is provided.
Fiber is the reinforcing material of widespread usage, and under the situation of interface combination preferably, fiber plays the effect of transmitting stress.Fill a large amount of fibers and change the performance of monomer cast nylon material significantly, its mechanical strength can approach general metal casting.The hardness of goods increases, and hear resistance improves greatly, and the coefficient of expansion reduces, and water absorption rate reduces, and dimensional stability improves.
The research work that at present fiber-reinforced thermoplastic resin is adhered to metallic matrix mainly concentrates on hot press molding method, this method is the surface that the powder of resin or pellet is coated on metallic matrix earlier, molten resin at a certain temperature, apply certain pressure again, make it be bonded in metallic surface.But the resin of this forming method gained composite and the interface adhesion of fiber are poor, complicated operation, and energy consumes high.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of technology simple for the defective that overcomes above-mentioned prior art existence, and convenient, continuous fibre reinforced nylon that the interface junction of fiber and matrix gets togather and metal composite prepare the method for product.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of continuous fibre reinforced nylon and metal composite prepare the method for product, it is characterized in that this method comprises: put into the metallic plate of handling at mold bottom, above metallic plate, place fiber with the same area of metallic plate, closed mold then, and be heated to the required temperature of monomer reaction; Caprolactam liquid with the vacuum fusion dehydration at a certain temperature, pours in the mould, insulation reaction 5～30 minutes, and the cooling demoulding promptly gets product.
This method also comprises: the caprolactam liquid with vacuum fusion dehydration, add an amount of flexibilizer, be heated to that certain temperature makes its melting mixing and obtain mixed liquor, at a certain temperature, pour in the mould insulation reaction 5～30 minutes, the cooling demoulding promptly gets product.
This method specifically comprises:
(1) processing of metallic plate: use the sand-blasting machine process metal surfaces, about the surperficial 4cm of the nozzle distance metallic plate of sand-blasting machine, up to the metallic plate that obtains uniform surface;
(2) preparation of reaction monomers: in reactor, drop into caprolactam, a certain amount of additive and the NaOH aqueous solution successively, start vavuum pump, pressure begins heating after being lower than 3mmHg, keep whole pressure process and be lower than 3mmHg, and when being higher than the melting point resin temperature, temperature make melt reflux, spatter accent, when return duct is red-hot topmost, stop to vacuumize, melt is heated to 100 ℃～200 ℃;
(3) preparation of fiber: the fibrous material that will select for use, 80～120 ℃ ventilated drying oven bakings 10～60 minutes, be prepared into corresponding shape and put into mould, be laid in the top of metallic plate;
(4) moulding of composite: add a certain amount of toluene di-isocyanate(TDI) in reactor, after stirring, by high pressure nitrogen the melt in the reactor is injected mould, the insulation polymerization promptly gets goods after the cooling and demolding.
Described metallic plate comprises the simple metal or the alloy of carbon steel, iron, stainless steel, aluminium, copper, zinc.
Described flexibilizer comprises nylon-type, polyurethanes, ABS, polyethers, hydroxyl PolyTHF and has amino liquid rubber.
The addition of described flexibilizer is 2%～30% weight of nylon matrix, preferred 4%～20% weight.
Described fiber useable glass fiber, carbon fiber, basalt fibre, string and Kev draw etc., and the fiber combinations mode can be fibre bundle, can be fiber cloth, also fibrofelt.
Described additive comprises defoamer.
Compared with prior art, the present invention adopts resin monomer to prepare the resin metallic composite parts in the method for metal base surface in-situ polymerization, fiber (glass fibre, carbon fiber, Kafra fiber etc.) is evenly distributed in the matrix, because what be molded into mould is the very little monomer resin consolute body of viscosity, the dipping effect of fiber is good, so the interface junction of fiber and matrix gets togather, thereby play the effect of good transmission stress, strengthen toughness reinforcing to matrix, the compound action of two kinds of method of modifying can have bigger raising to the performance of matrix material, technology is simple, and is convenient.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Among Fig. 1, the empty 6-heating rod of 1-reactor 2-mould 3-iron clamp 4-charging aperture 5-exhaust 7-reflux condensing tube 8-air inlet.
The specific embodiment
Below in conjunction with specific embodiment method involved in the present invention and technology are described.
Embodiment 1
As Fig. 1, in reactor 1, drop into caprolactam successively, add 2% defoamer and 2%NaOH, start vavuum pump, pressure begins heating after being lower than 3mmHg, keeps whole pressure process and is lower than 3mmHg and melt was refluxed 20 minutes.When return duct is red-hot topmost, stop to vacuumize.When melt is heated to 132 ℃～134 ℃, adds TDI and stir evenly, spread successively to go in the mould handling metallic plate and glass felt (glass cloth or carbon cloth), as Fig. 1, close feed pipe, start vavuum pump, mould 2 is vacuumized, after pressure is lower than 3mmHg, open feed pipe, with high pressure nitrogen resin is pressed into simultaneously and enters in the mould 150 ℃～160 ℃ of maintenance mould temperature, melt polymerization 5～30 minutes gets goods after the cooling and demolding.
Embodiment 2
As Fig. 1, in reactor, drop into caprolactam successively, 10% nylon 1212, the defoamer and the 2%NaOH of adding 2%, start vavuum pump, pressure begins heating after being lower than 3mmHg, keeps whole pressure process and is lower than 3mmHg and makes melt keep boiling to dissolve fully up to nylon 1212 when temperature reaches 160 ℃～200 ℃, adds TDI and stir evenly in reactor.Spread successively to go in the mould handling metallic plate and glass felt (glass cloth or carbon cloth), as Fig. 1, close feed pipe, start vavuum pump, mould is vacuumized, after pressure is lower than 3mmHg, open feed pipe, with high pressure nitrogen resin in the reactor is pressed into simultaneously and enters in the mould 160 ℃～200 ℃ of maintenance mould temperature, melt polymerization 5～30 minutes gets goods after the cooling and demolding.
Embodiment 3
As Fig. 1, in reactor, drop into caprolactam successively, 10% nylon 66, the defoamer and the 2%NaOH of adding 2%, start vavuum pump, pressure begins heating after being lower than 3mmHg, keeps whole pressure process and is lower than 3mmHg and makes melt keep boiling to dissolve fully up to nylon 66 when temperature reaches 160 ℃～200 ℃, adds TDI and stir evenly in reactor.Spread successively to go in the mould handling metallic plate and glass felt (glass cloth or carbon cloth), as Fig. 1, close feed pipe, start vavuum pump, mould is vacuumized, after pressure is lower than 3mmHg, open feed pipe, with high pressure nitrogen resin in the reactor is pressed into simultaneously and enters in the mould 160 ℃～200 ℃ of maintenance mould temperature, melt polymerization 5～30 minutes gets goods after the cooling and demolding.
Embodiment 4
Referring to Fig. 1, in reactor, drop into caprolactam successively, 30% nylon 11 11, the defoamer and the 2%NaOH of adding 2%, start vavuum pump, pressure begins heating after being lower than 3mmHg, keeps whole pressure process and is lower than 3mmHg and makes melt keep boiling to dissolve fully up to nylon 11 11 when temperature reaches 160 ℃～200 ℃, adds TDI and stir evenly in reactor.Use the sand-blasting machine process metal surfaces, about the surperficial 4cm of the nozzle distance metallic plate of sand-blasting machine, up to the metallic plate that obtains uniform surface, this was handled metallic plate and spread successively to go in the mould at 100 ℃ ventilated drying oven baking 30 minutes glass felt (glass cloth or carbon cloth), as Fig. 1, close feed pipe, start vavuum pump, mould is vacuumized, after pressure is lower than 3mmHg, open feed pipe, with high pressure nitrogen resin in the reactor is pressed into simultaneously and enters in the mould, keep 160 ℃～200 ℃ of mould temperature, melt polymerization 5～30 minutes gets goods after the cooling and demolding.
Referring to Fig. 1, in reactor, drop into caprolactam successively, 30% nylon 11 11, the defoamer and the 2%NaOH of adding 2%, start vavuum pump, pressure begins heating after being lower than 3mmHg, keeps whole pressure process and is lower than 3mmHg and makes melt keep boiling to dissolve fully up to nylon 11 11 when temperature reaches 160 ℃～200 ℃, adds TDI and stir evenly in reactor.Use the sand-blasting machine process metal surfaces, about the surperficial 4cm of the nozzle distance metallic plate of sand-blasting machine, up to the metallic plate that obtains uniform surface, this was handled metallic plate and spread successively to go in the mould at 120 ℃ ventilated drying oven baking 10 minutes glass felt (glass cloth or carbon cloth), as Fig. 1, close feed pipe, start vavuum pump, mould is vacuumized, after pressure is lower than 3mmHg, open feed pipe, with high pressure nitrogen resin in the reactor is pressed into simultaneously and enters in the mould, keep 200 ℃ of mould temperature, melt polymerization 5 minutes gets goods after the cooling and demolding.
Embodiment 6
Referring to Fig. 1, in reactor, drop into caprolactam successively, 10% nylon 11 11, the defoamer and the 2%NaOH of adding 2%, start vavuum pump, pressure is lower than and begins heating behind the 3mmHg, keeps whole pressure process and is lower than 3mmHg and reaches 160 ℃ in temperature and make melt keep boiling dissolve fully up to nylon 11 11, and adding TDI stirs evenly in reactor.Use the sand-blasting machine process metal surfaces, about the surperficial 4cm of the nozzle distance metallic plate of sand-blasting machine, up to the metallic plate that obtains uniform surface, this was handled metallic plate and spread successively to go in the mould at 100 ℃ ventilated drying oven baking 30 minutes glass felt (glass cloth or carbon cloth), as Fig. 1, close feed pipe, start vavuum pump, mould is vacuumized, after pressure is lower than 3mmHg, open feed pipe, with high pressure nitrogen resin in the reactor is pressed into simultaneously and enters in the mould, keep 160 ℃ of mould temperature, melt polymerization 30 minutes gets goods after the cooling and demolding.
Claims (8)
1. continuous fibre reinforced nylon and metal composite prepare the method for product, it is characterized in that, this method comprises: put into the metallic plate of handling at mold bottom, above metallic plate, place fiber with the same area of metallic plate, closed mold then, and be heated to the required temperature of monomer reaction; Caprolactam liquid with the vacuum fusion dehydration at a certain temperature, pours in the mould, insulation reaction 5～30 minutes, and the cooling demoulding promptly gets product.
2. continuous fibre reinforced nylon according to claim 1 and metal composite prepare the method for product, it is characterized in that, this method also comprises: with the caprolactam liquid of vacuum fusion dehydration, add an amount of flexibilizer, be heated to that certain temperature makes its melting mixing and obtain mixed liquor, at a certain temperature, pour in the mould, insulation reaction 5～30 minutes, the cooling demoulding promptly gets product.
3. continuous fibre reinforced nylon according to claim 1 and 2 and metal composite prepare the method for product, it is characterized in that, this method specifically comprises:
(1) processing of metallic plate: use the sand-blasting machine process metal surfaces, about the surperficial 4cm of the nozzle distance metallic plate of sand-blasting machine, up to the metallic plate that obtains uniform surface;
(2) preparation of reaction monomers: in reactor, drop into caprolactam, a certain amount of additive and the NaOH aqueous solution successively, start vavuum pump, pressure begins heating after being lower than 3mmHg, keep whole pressure process and be lower than 3mmHg, and when being higher than the melting point resin temperature, temperature make melt reflux, spatter accent, when return duct is red-hot topmost, stop to vacuumize, melt is heated to 100 ℃～200 ℃;
(3) preparation of fiber: the fibrous material that will select for use, 80～120 ℃ ventilated drying oven bakings 10～60 minutes, be prepared into corresponding shape and put into mould, be laid in the top of metallic plate;
(4) moulding of composite: add a certain amount of toluene di-isocyanate(TDI) in reactor, after stirring, by high pressure nitrogen the melt in the reactor is injected mould, the insulation polymerization promptly gets goods after the cooling and demolding.
4. continuous fibre reinforced nylon according to claim 3 and metal composite prepare the method for product, it is characterized in that, described metallic plate comprises the simple metal or the alloy of carbon steel, iron, stainless steel, aluminium, copper, zinc.
5. continuous fibre reinforced nylon according to claim 2 and metal composite prepare the method for product, it is characterized in that described flexibilizer comprises nylon-type, polyurethanes, ABS, polyethers, hydroxyl PolyTHF and has amino liquid rubber.
6. continuous fibre reinforced nylon according to claim 2 and metal composite prepare the method for product, it is characterized in that, the addition of described flexibilizer is 2%～30% weight of nylon matrix, preferred 4%～20% weight.
7. continuous fibre reinforced nylon according to claim 3 and metal composite prepare the preparation method of the method for product, it is characterized in that, described fiber useable glass fiber, carbon fiber, basalt fibre, string and Kev draw etc., the fiber combinations mode can be fibre bundle, can be fiber cloth, also fibrofelt.
8. continuous fibre reinforced nylon according to claim 3 and metal composite prepare the preparation method of the method for product, it is characterized in that, described additive comprises defoamer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101165971A CN101152747B (en) | 2006-09-27 | 2006-09-27 | Method for producing product by combination of continuous fibre reinforced nylon and metal |
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| CN2006101165971A CN101152747B (en) | 2006-09-27 | 2006-09-27 | Method for producing product by combination of continuous fibre reinforced nylon and metal |
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| CN101152747A true CN101152747A (en) | 2008-04-02 |
| CN101152747B CN101152747B (en) | 2010-09-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160119A (en) * | 2011-12-19 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | Polyamide nanometer barrier material and preparation method thereof |
| CN106335251A (en) * | 2016-08-22 | 2017-01-18 | 联诺欧机械科技江苏有限公司 | Oxidation resistant metal composite material |
| CN109467921A (en) * | 2019-01-10 | 2019-03-15 | 邢台中车环保科技有限公司 | A kind of fiber skeleton enhancing nylon wearing plate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069664C (en) * | 1996-01-29 | 2001-08-15 | 白玉泉 | MC nylon modifying copolymer |
| US6344160B1 (en) * | 1996-09-17 | 2002-02-05 | Compcast Technologies, Llc | Method for molding composite structural plastic and objects molded thereby |
| CN1098886C (en) * | 2000-03-24 | 2003-01-15 | 清华大学 | Preparation of cast composite nylon material with high-content reinforcing glass fiber |
| CN1108334C (en) * | 2000-10-20 | 2003-05-14 | 清华大学 | Preparation method of carbon fibre reinforced cast nylon composite material |
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2006
- 2006-09-27 CN CN2006101165971A patent/CN101152747B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160119A (en) * | 2011-12-19 | 2013-06-19 | 合肥杰事杰新材料股份有限公司 | Polyamide nanometer barrier material and preparation method thereof |
| CN103160119B (en) * | 2011-12-19 | 2016-08-03 | 合肥杰事杰新材料股份有限公司 | A kind of Polyamide nanometer barrier material and preparation method thereof |
| CN106335251A (en) * | 2016-08-22 | 2017-01-18 | 联诺欧机械科技江苏有限公司 | Oxidation resistant metal composite material |
| CN109467921A (en) * | 2019-01-10 | 2019-03-15 | 邢台中车环保科技有限公司 | A kind of fiber skeleton enhancing nylon wearing plate |
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| CN101152747B (en) | 2010-09-08 |
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