CN113400673A - Novel resin fiber model production method based on foam mold blank - Google Patents
Novel resin fiber model production method based on foam mold blank Download PDFInfo
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- CN113400673A CN113400673A CN202110696527.2A CN202110696527A CN113400673A CN 113400673 A CN113400673 A CN 113400673A CN 202110696527 A CN202110696527 A CN 202110696527A CN 113400673 A CN113400673 A CN 113400673A
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- mold blank
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- resin
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- 239000006260 foam Substances 0.000 title claims abstract description 65
- 229920005989 resin Polymers 0.000 title claims abstract description 54
- 239000011347 resin Substances 0.000 title claims abstract description 54
- 239000000835 fiber Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 238000000576 coating method Methods 0.000 claims abstract description 50
- 239000003822 epoxy resin Substances 0.000 claims abstract description 32
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 32
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000011259 mixed solution Substances 0.000 claims abstract description 23
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 239000002657 fibrous material Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 25
- 239000011159 matrix material Substances 0.000 claims description 17
- 238000007493 shaping process Methods 0.000 claims description 6
- 238000004018 waxing Methods 0.000 claims description 6
- WFUGQJXVXHBTEM-UHFFFAOYSA-N 2-hydroperoxy-2-(2-hydroperoxybutan-2-ylperoxy)butane Chemical compound CCC(C)(OO)OOC(C)(CC)OO WFUGQJXVXHBTEM-UHFFFAOYSA-N 0.000 claims description 3
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 239000009719 polyimide resin Substances 0.000 claims description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 claims description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 3
- 229920002554 vinyl polymer Polymers 0.000 claims description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 2
- 238000004381 surface treatment Methods 0.000 claims description 2
- 230000001680 brushing effect Effects 0.000 claims 3
- 239000002023 wood Substances 0.000 abstract description 9
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 abstract description 2
- 229920003023 plastic Polymers 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000004806 packaging method and process Methods 0.000 description 4
- 238000005498 polishing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention relates to the technical field of resin fiber models, in particular to a novel resin fiber model production method based on a foam mold blank. Which comprises the following steps: processing the shape of the foam to prepare a foam mold blank, wherein the foam mold blank is divided into an upper mold blank and a lower mold blank; mixing epoxy resin and a curing agent according to a ratio to prepare an epoxy resin mixed solution, then uniformly coating a layer of epoxy resin mixed solution on the surfaces of an upper mold blank and a lower mold blank to enable the epoxy resin mixed solution to be rapidly cured within a half hour, standing for 1-2 hours, then coating for the second time, and after coating two layers, forming a layer of protective film on the surface of a foam mold blank; in the novel resin fiber model production method based on the foam mold blank, the problem that the foam mold blank is melted due to heating during fiber resin molding to cause deformation is solved, meanwhile, compared with a wood mold, the plastic mold is lower in processing cost, and foam with shorter processing time is used for mold type production, so that the model production cost is reduced fundamentally.
Description
Technical Field
The invention relates to the technical field of resin fiber models, in particular to a novel resin fiber model production method based on a foam mold blank.
Background
As is known, resin molding generates a large amount of heat, and when resin fiber models are generally produced in the past, a material with good heat resistance is needed to make a mold blank, and generally, a wood mold or an engineering plastic is used to make a mold for producing the resin fiber models, so that the mold is high in cost and long in production time. However, if the foam is used for making the mold, the operation is very convenient, but when the mold made of the foam is used for producing a resin fiber model, the foam is melted by heat generated during the molding of the resin fiber, so that the shape of the model is deformed inestimably when the model is made, and the mode is not very preferable.
Disclosure of Invention
The invention aims to provide a novel resin fiber model production method based on a foam mould blank, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides a novel resin fiber model production method based on a foam mould blank, which comprises the following steps:
s1, manufacturing a die: processing the shape of foam to prepare a foam mold blank, wherein the foam mold blank is divided into an upper mold blank and a lower mold blank;
s2, surface treatment of the die: mixing epoxy resin and a curing agent according to a ratio to prepare an epoxy resin mixed solution, then uniformly coating a layer of epoxy resin mixed solution on the surfaces of the upper mold blank and the lower mold blank to enable the epoxy resin mixed solution to be rapidly cured within 20-30min, standing for 1-2 hours, then coating for the second time, and after coating the two layers, forming a layer of protective film on the surface of the foam mold blank, so that the corrosion of resin fibers to foam can be effectively avoided, and the melting of the foam at high temperature can be effectively isolated;
s3, mixing the matrix resin with the curing agent to obtain a mixture, then respectively coating the mixture on the surfaces of the upper mold blank and the lower mold blank, respectively paving fiber materials, and finally coating the mixture on the fiber materials;
and S4, closing the upper mold blank and the lower mold blank, waxing the joint of the mold blanks, shaping and demolding.
Preferably, the curing agent is at least one selected from the group consisting of vinyl triamine, methyl ethyl ketone peroxide, and isophorone diamine.
Preferably, the matrix resin is at least one selected from the group consisting of unsaturated polyester resins, phenolic resins, and polyimide resins.
Preferably, the fiber material is selected from at least one of glass fiber, carbon fiber, and aramid fiber.
Preferably, the mixing ratio of the epoxy resin to the curing agent is 1: 0.3.
Preferably, the mixing ratio of the matrix resin to the curing agent is 1: 0.01-0.05.
Preferably, in S3, the number of laying layers of the fiber material is 4 to 6
Preferably, in S3, each layer of the fiber material is rolled by a roller and coated with a mixture of a matrix resin and a curing agent in an amount of 0.01-0.1kg/m2, and the fiber materials are tightly bonded by a small amount of the mixture.
Preferably, in the step S4, the setting time is 24-48 h.
Preferably, in S4, after the upper mold blank and the lower mold blank are closed, they are clamped by a clamp, and then the seam is waxed.
Compared with the prior art, the invention has the beneficial effects that:
in the novel resin fiber model production method based on the foam mold blank, the problem that the foam mold blank is melted due to heating during fiber resin molding to cause deformation is solved, and meanwhile, compared with a wood mold, the foam mold is lower in processing cost and shorter in processing time, so that the model manufacturing cost is reduced fundamentally.
Drawings
FIG. 1 is an overall flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1, a method for producing a novel resin fiber model based on a foam mold base, comprising the steps of:
1. manufacturing a mould: processing the shape of the foam to prepare a foam mold blank, wherein the foam mold blank is divided into an upper mold blank and a lower mold blank;
2. treating the surface of the die: mixing epoxy resin and a curing agent according to a ratio of 1:0.3 to prepare an epoxy resin mixed solution, then uniformly coating a layer of epoxy resin mixed solution on the surfaces of an upper mold blank and a lower mold blank, wherein the coating amount is 0.2kg/m2, so that the epoxy resin mixed solution is rapidly cured within 20-30min, standing for 1-2 hours, then coating for the second time, wherein the coating amount is 0.1% kg/m2, and after coating two layers, a protective film is formed on the surface of a foam mold blank, so that the corrosion of resin fibers to foam can be effectively avoided, and the melting of the foam at high temperature is effectively isolated;
3. mixing matrix resin and a curing agent in a mixing ratio of 1:0.01-0.05 to prepare a mixture, then respectively coating the mixture on the surfaces of an upper mold blank and a lower mold blank, respectively laying fiber materials, totally laying 4-6 layers, rolling and compacting the fiber materials by using a roller when 1 layer of the fiber materials are laid, coating the mixture of the matrix resin and the curing agent, wherein the coating amount is 0.01-0.1kg/m2, and coating a small amount of the mixture to ensure that the fiber materials are tightly bonded;
4. and (3) closing the upper mold blank and the lower mold blank, clamping the upper mold blank and the lower mold blank through a clamp after closing the molds, waxing the joint, finally shaping for 24-48h, demolding, and sequentially performing dewaxing, polishing, assembling, finishing, coating and packaging after demolding.
The invention solves the problem that the foam mold blank is melted by heating during fiber resin molding to cause deformation, and simultaneously, compared with a wood mold, the plastic mold has lower processing cost and shorter processing time for mold type manufacturing, thereby fundamentally reducing the mold manufacturing cost.
Embodiment 2, a method for producing a novel resin fiber model based on a foam mold base, comprising the steps of:
1. manufacturing a mould: processing the shape of the foam to prepare a foam mold blank, wherein the foam mold blank is divided into an upper mold blank and a lower mold blank;
2. treating the surface of the die: mixing epoxy resin and a curing agent according to a ratio of 1:0.3 to prepare an epoxy resin mixed solution, then uniformly coating a layer of epoxy resin mixed solution on the surfaces of an upper mold blank and a lower mold blank, wherein the coating amount is 0.3kg/m2, so that the epoxy resin mixed solution is rapidly cured within 20-30min, standing for 1-2 hours, then coating for the second time, wherein the coating amount is 0.2% kg/m2, and after coating two layers, a protective film is formed on the surface of a foam mold blank, so that the corrosion of resin fibers to foam can be effectively avoided, and the melting of the foam at high temperature is effectively isolated;
3. mixing matrix resin and a curing agent in a mixing ratio of 1:0.01-0.05 to prepare a mixture, then respectively coating the mixture on the surfaces of an upper mold blank and a lower mold blank, respectively laying fiber materials, totally laying 4-6 layers, rolling and compacting the fiber materials by using a roller when 1 layer of the fiber materials are laid, coating the mixture of the matrix resin and the curing agent, wherein the coating amount is 0.01-0.1kg/m2, and coating a small amount of the mixture to ensure that the fiber materials are tightly bonded;
4. and (3) closing the upper mold blank and the lower mold blank, clamping the upper mold blank and the lower mold blank through a clamp after closing the molds, waxing the joint, finally shaping for 24-48h, demolding, and sequentially performing dewaxing, polishing, assembling, finishing, coating and packaging after demolding.
Embodiment 3, a method for producing a novel resin fiber model based on a foam mold base, comprising the steps of:
1. manufacturing a mould: processing the shape of the foam to prepare a foam mold blank, wherein the foam mold blank is divided into an upper mold blank and a lower mold blank;
2. treating the surface of the die: mixing epoxy resin and a curing agent according to a ratio of 1:0.3 to prepare an epoxy resin mixed solution, then uniformly coating a layer of epoxy resin mixed solution on the surfaces of an upper mold blank and a lower mold blank, wherein the coating amount is 0.4kg/m2, so that the epoxy resin mixed solution is rapidly cured within 20-30min, standing for 1-2 hours, then coating for the second time, wherein the coating amount is 0.3% kg/m2, and after coating two layers, a protective film is formed on the surface of a foam mold blank, so that the corrosion of resin fibers to foam can be effectively avoided, and the melting of the foam at high temperature is effectively isolated;
3. mixing matrix resin and a curing agent in a mixing ratio of 1:0.01-0.05 to prepare a mixture, then respectively coating the mixture on the surfaces of an upper mold blank and a lower mold blank, respectively laying fiber materials, totally laying 4-6 layers, rolling and compacting the fiber materials by using a roller when 1 layer of the fiber materials are laid, coating the mixture of the matrix resin and the curing agent, wherein the coating amount is 0.01-0.1kg/m2, and coating a small amount of the mixture to ensure that the fiber materials are tightly bonded;
4. and (3) closing the upper mold blank and the lower mold blank, clamping the upper mold blank and the lower mold blank through a clamp after closing the molds, waxing the joint, finally shaping for 24-48h, demolding, and sequentially performing dewaxing, polishing, assembling, finishing, coating and packaging after demolding.
In the above examples 1 to 3, the curing agent is at least one selected from the group consisting of vinyl triamine, methyl ethyl ketone peroxide and isophorone diamine;
the matrix resin is at least one of unsaturated polyester resin, phenolic resin and polyimide resin;
the fiber material is selected from at least one of glass fiber, carbon fiber and aramid fiber.
Comparative example 1, a novel resin fiber model production method, comprising the steps of:
1. manufacturing a mould: processing the shape of the wood block to obtain a wood mold blank, wherein the wood mold blank is divided into an upper mold blank and a lower mold blank;
2. treating the surface of the die: mixing epoxy resin and a curing agent according to a ratio of 1:0.3 to prepare an epoxy resin mixed solution, then uniformly coating a layer of epoxy resin mixed solution on the surfaces of an upper mold blank and a lower mold blank, wherein the coating amount is 0.2-0.4kg/m2, and coating for the second time after curing, and the coating amount is 0.1-0.3% kg/m 2;
3. mixing matrix resin and a curing agent in a mixing ratio of 1:0.01-0.05 to prepare a mixture, then respectively coating the mixture on the surfaces of an upper mold blank and a lower mold blank, respectively laying fiber materials, totally laying 4-6 layers, rolling and compacting the fiber materials by using a roller when 1 layer of the fiber materials are laid, coating the mixture of the matrix resin and the curing agent, wherein the coating amount is 0.01-0.1kg/m2, and coating a small amount of the mixture to ensure that the fiber materials are tightly bonded;
4. and (3) closing the upper mold blank and the lower mold blank, clamping the upper mold blank and the lower mold blank through a clamp after closing the molds, waxing the joint, finally shaping for 24-48h, demolding, and sequentially performing dewaxing, polishing, assembling, finishing, coating and packaging after demolding.
In comparative example 1 above, the procedure was the same as for the other materials except that the mold base used was different from those of examples 1 to 3.
The novel resin fiber model based on the foam mold blank prepared by the invention has lower production cost and shorter processing time of the mold blank, and in order to verify the related technical scheme, the applicant performs the following tests:
comparative example 1: by adopting the steps in the embodiments 1-3, the curing time after the epoxy resin mixed solution is coated on the surfaces of the upper mold blank and the lower mold blank for the first time is detected under the condition of changing the mold blank material, and the steps are specifically shown in table 1:
TABLE 1
| Example 1 | Example 2 | Example 3 | Comparative example 1 | |
| Curing time (min) | 26 | 22 | 21 | 41 |
As shown in table 1, in examples 1 to 3, the curing time after the epoxy resin mixed solution was applied to the surface of the foam mold blank for the first time did not exceed 30min, while in comparative example 1, the curing time after the epoxy resin mixed solution was applied to the surface of the foam mold blank for the first time was significantly increased after the mold blank was changed to a wood mold blank, and thus it was found that the foam mold was processed at a lower cost and in a shorter processing time than the wood mold.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A novel resin fiber model production method based on a foam mold blank is characterized by comprising the following steps:
s1, manufacturing a die: processing the shape of foam to prepare a foam mold blank, wherein the foam mold blank is divided into an upper mold blank and a lower mold blank;
s2, surface treatment of the die: mixing epoxy resin and a curing agent in proportion to prepare an epoxy resin mixed solution, then uniformly brushing a layer of epoxy resin mixed solution on the surfaces of the upper mold blank and the lower mold blank to enable the epoxy resin mixed solution to be rapidly cured within 20-30min, standing for 1-2 hours, then brushing for the second time, and after brushing for two layers, forming a layer of protective film on the surface of the foam mold blank;
s3, mixing the matrix resin with the curing agent to obtain a mixture, then respectively coating the mixture on the surfaces of the upper mold blank and the lower mold blank, respectively paving fiber materials, and finally coating the mixture on the fiber materials;
and S4, closing the upper mold blank and the lower mold blank, waxing the joint of the mold blanks, shaping and demolding.
2. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: the curing agent is at least one selected from the group consisting of vinyl triamine, methyl ethyl ketone peroxide and isophorone diamine.
3. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: the matrix resin is at least one selected from unsaturated polyester resin, phenolic resin and polyimide resin.
4. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: the fiber material is selected from at least one of glass fiber, carbon fiber and aramid fiber.
5. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: the mixing ratio of the epoxy resin to the curing agent is 1: 0.3.
6. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: the mixing ratio of the matrix resin to the curing agent is 1: 0.01-0.05.
7. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: in S3, the number of layers of the fiber material is 4 to 6.
8. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: in the S3, each layer of the fiber material is rolled and compacted by a roller, and a mixture of matrix resin and a curing agent is coated, wherein the coating amount is 0.01-0.1kg/m 2.
9. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: in the step S4, the setting time is 24-48 h.
10. The method for producing the novel resin fiber model based on the foam mold blank as claimed in claim 1, wherein: in the step S4, after the upper mold blank and the lower mold blank are closed, they are clamped by a clamp, and then the joint is waxed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696527.2A CN113400673A (en) | 2021-06-23 | 2021-06-23 | Novel resin fiber model production method based on foam mold blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696527.2A CN113400673A (en) | 2021-06-23 | 2021-06-23 | Novel resin fiber model production method based on foam mold blank |
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| CN113400673A true CN113400673A (en) | 2021-09-17 |
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| CN202110696527.2A Pending CN113400673A (en) | 2021-06-23 | 2021-06-23 | Novel resin fiber model production method based on foam mold blank |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578168A (en) * | 2006-11-09 | 2009-11-11 | 高级复合材料集团有限公司 | Foamed tools |
| CN102245370A (en) * | 2008-12-10 | 2011-11-16 | 纳幕尔杜邦公司 | Process for thermoforming acrylic polymer employing foam as a mold and article formed therefrom |
-
2021
- 2021-06-23 CN CN202110696527.2A patent/CN113400673A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101578168A (en) * | 2006-11-09 | 2009-11-11 | 高级复合材料集团有限公司 | Foamed tools |
| CN102245370A (en) * | 2008-12-10 | 2011-11-16 | 纳幕尔杜邦公司 | Process for thermoforming acrylic polymer employing foam as a mold and article formed therefrom |
Non-Patent Citations (1)
| Title |
|---|
| 雷文: "《材料成型与加工实验教程》", 31 May 2017, 东南大学出版社 * |
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Application publication date: 20210917 |