CN104827678A - Thermosetting manufacturing method of natural fiber sheet and manufacturing method of sheet and cellphone shell - Google Patents
Thermosetting manufacturing method of natural fiber sheet and manufacturing method of sheet and cellphone shell Download PDFInfo
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- CN104827678A CN104827678A CN201510294061.8A CN201510294061A CN104827678A CN 104827678 A CN104827678 A CN 104827678A CN 201510294061 A CN201510294061 A CN 201510294061A CN 104827678 A CN104827678 A CN 104827678A
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- natural fiber
- sheet material
- sheet
- thermosetting
- cloth
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- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
-
- 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
- B29C70/06—Fibrous reinforcements only
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a thermosetting manufacturing method of a natural fiber sheet. The thermosetting manufacturing method includes the following steps: (1), fitting a natural fiber material with cloth to form a sheet; (2), coating resin, namely uniformly coating resin on one side, where the cloth is fitted, of the sheet; (3), thickening, namely compositing an impreg material and a product obtained in step (2) to thicken the sheet; (4), drying; (5), press-fitting, namely press-fitting the sheet to be uniform in thickness. The natural fiber material is introduced to manufacture the sheet, so that attractive appearance of natural texture of the natural fiber material can be completely retained, and the natural fiber sheet has the characteristics of ultralight weight, high strength, corrosion resistance and resistance to high and low temperature that a composite material has and can be widely applied to decorating shells and structural parts of consumer electronics.
Description
Technical field
The present invention relates to the preparation method of a kind of natural fiber sheet material thermosetting preparation method, sheet material and mobile phone shell.
Background technology
In present stage, the decoration of consumer electronics product or shell are increasingly frivolous, rich color; At present, major part consumption electronic product shell normally injection molding product, in order to obtain different outward appearance lines effects, printed patterns is carried out after moulding by serigraphy or use transfer paper/film, this series products does not inherently possess the texture of nature material, profile is coarse lacks nature aesthetic feeling, and gloss and color can be taken off in time, is only a kind of artificial imitated product.Portioned product also adopts dermatine to copy, adopt PU or TPU material copy nature material decorative pattern, be bonded in product surface with glue etc. again, be a kind of Counterfeit Item of nature material equally, outward appearance does not reach nature material effect.The product that present stage also has natural fiber to weave or carve, its texture natural beauty, but braiding or the carved product of natural fiber material are used for daily product, Total Product thickness is large, intensity difference, directly cannot be practically applicable to industrial production, the intensity of product cannot meet the requirement of consumer electronics to environment, and also cannot reach electronic product anti-high and low-temp, Sun-proof, erosion-resisting requirement;
Summary of the invention
First technical problem that the present invention will solve is to provide a kind of natural fiber sheet material thermosetting preparation method, it is introduced natural fiber material and makes sheet material, can natural texture attractive in appearance of complete reservation natural fiber material, have ultralight, high strength, the anticorrosive and high temperature resistance low-temperature characteristics of composite simultaneously concurrently, decorative shell and the constitutional detail of consumer electronics product can be widely used in.
For solving above technical problem, present invention employs following technical scheme:
A kind of natural fiber sheet material thermosetting preparation method, comprises the following steps:
(1) fit together natural fiber material and cloth formation sheet material;
(2) resinize, resin is evenly coated in the one side of described sheet material adhesive fabric;
(3) thicken, being fitted by the product that impreg material and step (2) obtain thickeies sheet material;
(4) dry;
(5) pressing, makes its thickness even sheet material pressing.
Described natural fiber material and cloth being fit together comprises:
(11) natural fiber material is selected;
(12) natural fiber material is carried out fibrillatable process;
(13) the natural fiber material after fibrillatable process and non-woven fabrics to be fitted formation sheet material by the mode of gum.
Described natural fiber material is unitary piece of material, and described unitary piece of material is bamboo skin, wooden skin, splice plate, braiding bamboo, old and useless newspaper, linen, non-woven fabrics or denim.
Described natural fiber material and cloth being fit together comprises:
(11) select natural fiber material, and be made into sample material;
(12) sample material and woven cloth to be fit together formation sheet material by gum mode;
(13) sheet material is carried out drying.
Described step (12) can adopt following steps to substitute:
(S1) woven cloth pre-soaked resin is adopted;
(S2) be laid in the woven cloth after pre-soaked resin after sample material being soaked resin;
(S3) compacting forms sheet material;
Described natural fiber material is scattered material, and described scattered material is fresh flower, greenweed or wheat straw.
Described impreg material is woven cloth.
Described resin is thermosetting resin.
The method of described drying is that nature dries more than 2 hours or toasts more than 10 minutes at 80 ° of-90 ° of temperature.
Second technical problem that the present invention will solve is to provide a kind of sheet material, it has ultralight, the high strength of composite, the characteristic of anticorrosive and high temperature resistance low temperature concurrently while retaining natural fiber nature texture, fashion attractive in appearance, can be widely used in decorative shell and the constitutional detail of consumer electronics product.
For solving above technical problem, present invention employs following technical scheme:
A kind of sheet material, comprises natural fiber material layer and the impreg bed of material of stacked setting.
Described natural fiber material layer is fitted by natural fiber material and non-woven fabrics or glass-fiber-fabric and is formed.
The 3rd technical problem that the present invention will solve is to provide a kind of method utilizing above-mentioned sheet material to make mobile phone shell, it can produce the attractive in appearance of the natural texture with natural fiber material, has the mobile phone shell of ultralight, the high strength of composite, anticorrosive and high temperature resistance low-temperature characteristics concurrently simultaneously.
For solving above technical problem, present invention employs following technical scheme:
Make a method for mobile phone shell, comprise the following steps:
(1) solidify, sheet material is loaded mould, and carry out vacuumizing compression process;
(2) rough lumber profile;
(3) spray paint;
(4) precise measure cutting;
(5) resin is adopted to carry out edge sealing process to cutting part.
In the front step of sheet material being carried out splitting in addition according to product design size of described step (1).
Also had before described step (3) and adopt sandblasting mode to carry out surface-treated step.
Before surface treatment is carried out in sandblasting, in addition sheet material and other part are carried out the step combined.
The condition of described solidification is vacuum pressure 0.8Mpa-1.2Mpa, temperature 135 °-145 °, and the time is for being greater than 45 minutes.
Adopt above technical scheme, the beneficial effect acquired by the present invention is:
The method of making mobile phone shell provided by the invention, it can produce the attractive in appearance of the natural texture with natural fiber material, has the mobile phone shell of ultralight, the high strength of composite, anticorrosive and high temperature resistance low-temperature characteristics concurrently simultaneously.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, technology of the present invention is described in further detail:
Fig. 1 is the process chart of the embodiment of the present invention 1;
Fig. 2 is the process chart of the embodiment of the present invention 2;
Fig. 3 is the structure chart of the sheet material of the embodiment of the present invention 3;
Fig. 4 is the process chart of the embodiment of the present invention 4.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of natural fiber sheet material thermosetting preparation method, it comprises the following steps:
(1) fit together natural fiber material and cloth formation sheet material;
(2) resinize, resin is evenly coated in the one side of described sheet material adhesive fabric;
(3) thicken, being fitted by the product that impreg material and step (2) obtain thickeies sheet material;
(4) dry;
(5) pressing, makes its thickness even sheet material pressing.
Wherein, the described step forming sheet material that natural fiber material and cloth fit together comprises:
(11) natural fiber material is selected; Described natural fiber material is unitary piece of material, there is complete texture, described unitary piece of material is bamboo skin, wooden skin, splice plate, braiding bamboo, old and useless newspaper, linen, non-woven fabrics or denim, thickness is preferably 0.16mm-0.25mm, wooden skin, bamboo skin etc. can be selected according to the demand of appearance design, and wood can be adopted, bamboo carries out splicing or weave to realize different outward appearance lines;
(12) natural fiber material is carried out fibrillatable process; The natural fiber materials such as wooden skin, bamboo skin can be soaked in ammoniacal liquor, to remove moisture, protein and resin wherein, natural fiber material be carried out fibrillatable process;
(13) the natural fiber material after fibrillatable process and non-woven fabrics to be fitted formation sheet material by the mode of gum, the tensile strength of the natural fiber such as wooden skin, bamboo skin mainly strengthened by non-woven fabrics, improve the toughness of natural fiber material, prevent it to be torn in process or breakage; As structural reinforcement, so that postorder processing.
Wherein, resin in step (2) is thermosetting resin, phenolic resinoid, epoxy resin, amino resins, unsaturated polyester resin or modified epoxy can be adopted, modified epoxy is adopted in the present embodiment, modified epoxy is more excellent compared with phenolic resinoid in structure physical property, the concrete formula of modified epoxy is shown in that the applicant's application number is the patent of 201410345863.2, before use, needs to be first 50% allotment by modified epoxy according to volumetric concentration.Resinize and adopt the mode of hand lance or hardened coating, smear and want evenly, resin is by non-woven fabrics complete wetting.
Wherein, the impreg material in step (3) is woven cloth or non-woven fabrics, is preferably woven cloth, and described woven cloth is glass-fiber-fabric or aryl fiber cloth or carbon cloth, determines the number of plies of impreg material according to the design thickness of product.
Wherein, dry in step (4) method is that nature dries more than 2 hours or toasts more than 10 minutes at 80 ° of-90 ° of temperature.
Wherein, step (5) specifically adopts cold pressing device that sheet material is carried out pressing, guarantees that sheet thickness is even.
Embodiment 2
As shown in Figure 2, embodiment 2 is with the difference of embodiment 1, and natural fiber material and cloth fit together by step (1), and to form the method that sheet material adopts different, for natural fiber material difference, lower mask body introduction:
In embodiment 2, natural fiber material is scattered material, and as fresh flower, greenweed or wheat straw, this kind of material is more scattered, and the fit together mode that forms sheet material and embodiment 1 of itself and cloth is slightly distinguished, and concrete step is:
(11) select natural fiber material, and be made into sample material;
(12) sample material and woven cloth to be fit together formation sheet material by gum mode;
(13) sheet material is carried out drying.
Wherein, step (32) also can adopt following steps to realize, and is specially:
(S1) woven cloth pre-soaked resin is adopted;
(S2) be laid in the woven cloth after pre-soaked resin after sample material being soaked resin,
(S3) compacting forms sheet material, and compacting adopts cold pressing device to carry out;
Wherein, described woven cloth comprises glass-fiber-fabric or aryl fiber cloth or carbon cloth.Step (33) sheet material is carried out drying be specially nature dry more than 2 hours or at 80 ° of-90 ° of temperature toast more than 10 minutes.
Embodiment 3
As shown in Figure 3, present embodiments provide a kind of sheet material, comprise natural fiber material layer 1 and the impreg bed of material 2 of stacked setting, described natural fiber material layer 1 is fitted by natural fiber material and non-woven fabrics or glass-fiber-fabric and is formed.
The sheet material that the present embodiment provides has ultralight, high strength, the anticorrosive and high temperature resistance low-temperature characteristics of composite concurrently while retaining natural fiber nature texture, and fashion attractive in appearance, can be widely used in decorative shell and the constitutional detail of consumer electronics product.
Embodiment 4
As shown in Figure 4, present embodiments provide a kind of method utilizing the sheet material of embodiment 3 to make mobile phone shell, comprise the following steps:
(1) solidify, sheet material is loaded mould, and carry out vacuumizing compression process;
(2) rough lumber profile;
(3) spray paint;
(4) precise measure cutting;
(5) resin is adopted to carry out edge sealing process to cutting part.
Wherein, step (1) is front can also first be split sheet material according to product design size carrying out, and segmentation adopts laser equipment or punching cutter to carry out.
Wherein, in step (1), sheet material being loaded mould adopts charging equipment of colding pressing to carry out, and sheet material high-temperature vacuum hot setting in mould is shaping, and the condition of curing molding is vacuum pressure 0.8Mpa-1.2Mpa, temperature 135 °-145 °, the time is for being greater than 45 minutes.
Wherein, carrying out can first adopting sandblasting mode to carry out surface treatment before step (3) is sprayed paint, this step is the carrying out in order to next step sprays paint, and makes paint be attached to product surface better.For portioned product, sheet material and other part is also needed to combine, this step is carried out before sandblasting after to sheet material rough lumber profile, the mode that sheet material and other part carry out combining can be adopted and sheet material and plastic cement be adopted in-mould injection mode shaping or adopt the mode of cementing sheet material and other material or part to be bondd.
Wherein, step (3) is sprayed paint to be specially and is adopted two component PU paint to carry out spray treatment to product surface, and object guarantees product surface gloss and anticorrosion ability.Two component PU paint includes curing agent, can solidify, toast 15 minutes after spraying paint under 80 DEG C of temperature conditions in 4 hours.
Wherein, the cutting of step (4) precise measure adopts laser or CNC equipment to carry out.
Wherein, step (5) is specially the surface adopting spraying method resin glue to be sprayed on cutting part, and main purpose plays a protective role to product section, forms diaphragm.
The method of making mobile phone shell provided by the invention, the attractive in appearance of the natural texture with natural fiber material can be produced, have the mobile phone shell of ultralight, the high strength of composite, anticorrosive and high temperature resistance low-temperature characteristics concurrently simultaneously, and no matter all good than thermoplastic molding, very firm in intensity, rigidity the product made is.
Last it is noted that these are only the preferred embodiments of the present invention; be not limited to the present invention; although with reference to embodiment to invention has been detailed description; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (16)
1. a natural fiber sheet material thermosetting preparation method, is characterized in that comprising the following steps:
(1) fit together natural fiber material and cloth formation sheet material;
(2) resinize, resin is evenly coated in the one side of described sheet material adhesive fabric;
(3) thicken, being fitted by the product that impreg material and step (2) obtain thickeies sheet material;
(4) dry;
(5) pressing, makes its thickness even sheet material pressing.
2. natural fiber sheet material thermosetting preparation method according to claim 1, is characterized in that described natural fiber material and cloth being fit together comprises:
(11) natural fiber material is selected;
(12) natural fiber material is carried out fibrillatable process;
(13) the natural fiber material after fibrillatable process and non-woven fabrics to be fitted formation sheet material by the mode of gum.
3. natural fiber sheet material thermosetting preparation method according to claim 2, it is characterized in that: described natural fiber material is unitary piece of material, described unitary piece of material is bamboo skin, wooden skin, splice plate, braiding bamboo, old and useless newspaper, linen, non-woven fabrics or denim.
4. natural fiber sheet material thermosetting preparation method according to claim 1, is characterized in that described natural fiber material and cloth being fit together comprises:
(11) select natural fiber material, and be made into sample material;
(12) sample material and woven cloth to be fit together formation sheet material by gum mode;
(13) sheet material is carried out drying.
5. natural fiber sheet material thermosetting preparation method according to claim 4, is characterized in that: described step (12) can adopt following steps to substitute:
(S1) woven cloth pre-soaked resin is adopted;
(S2) be laid in the woven cloth after pre-soaked resin after sample material being soaked resin;
(S3) compacting forms sheet material.
6. natural fiber sheet material thermosetting preparation method according to claim 4, it is characterized in that: described natural fiber material is scattered material, described scattered material is fresh flower, greenweed or wheat straw.
7. natural fiber sheet material thermosetting preparation method according to claim 1, is characterized in that: described impreg material is woven cloth.
8. natural fiber sheet material thermosetting preparation method according to claim 1, is characterized in that: described resin is thermosetting resin.
9. natural fiber sheet material thermosetting preparation method according to claim 1, is characterized in that: the method for described drying is that nature dries more than 2 hours or toasts more than 10 minutes at 80 ° of-90 ° of temperature.
10. a sheet material, is characterized in that: the natural fiber material layer and the impreg bed of material that comprise stacked setting.
11. sheet materials according to claim 10, is characterized in that: described natural fiber material layer is fitted by natural fiber material and non-woven fabrics or glass-fiber-fabric and formed.
12. 1 kinds of methods utilizing the sheet material described in claim 10 or 11 to make mobile phone shell, is characterized in that comprising the following steps:
(1) solidify, sheet material is loaded mould, and carry out vacuumizing compression process;
(2) rough lumber profile;
(3) spray paint;
(4) precise measure cutting;
(5) resin is adopted to carry out edge sealing process to cutting part.
13. sheet materials according to claim 12 make the method for mobile phone shell, it is characterized in that: in the front step of sheet material being carried out splitting in addition according to product design size of described step (1).
14. sheet materials according to claim 12 make the method for mobile phone shell, it is characterized in that: also had before described step (3) and adopt sandblasting mode to carry out surface-treated step.
15. sheet materials according to claim 14 make the method for mobile phone shell, it is characterized in that: before surface treatment is carried out in sandblasting, in addition sheet material and other part are carried out the step combined.
16. sheet materials according to claim 12 make the method for mobile phone shell, it is characterized in that: the condition of described solidification is vacuum pressure 0.8Mpa-1.2Mpa, temperature 135 °-145 °, and the time is for being greater than 45 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294061.8A CN104827678A (en) | 2015-06-01 | 2015-06-01 | Thermosetting manufacturing method of natural fiber sheet and manufacturing method of sheet and cellphone shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510294061.8A CN104827678A (en) | 2015-06-01 | 2015-06-01 | Thermosetting manufacturing method of natural fiber sheet and manufacturing method of sheet and cellphone shell |
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| Publication Number | Publication Date |
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| CN104827678A true CN104827678A (en) | 2015-08-12 |
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|---|---|---|---|
| CN201510294061.8A Pending CN104827678A (en) | 2015-06-01 | 2015-06-01 | Thermosetting manufacturing method of natural fiber sheet and manufacturing method of sheet and cellphone shell |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105658005A (en) * | 2016-03-17 | 2016-06-08 | 浙江兆奕科技有限公司 | Product shell adopting cellulose plate technology and production equipment and manufacturing process thereof |
| CN109774261A (en) * | 2019-02-28 | 2019-05-21 | 广东新秀新材料股份有限公司 | Visual effect material, preparation method and application |
| CN109981847A (en) * | 2019-03-26 | 2019-07-05 | Oppo广东移动通信有限公司 | Electronic equipment, glass cover-plate and its manufacturing method |
| WO2021114482A1 (en) * | 2019-12-11 | 2021-06-17 | 东莞市昊通塑胶科技有限公司 | Plastic shell with two layers or multiple layers of decorative fabric, and process for manufacturing same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626669A (en) * | 2015-01-13 | 2015-05-20 | 上海杉华复合材料科技有限公司 | Carbon fiber enhanced composite material panel and preparation method thereof |
-
2015
- 2015-06-01 CN CN201510294061.8A patent/CN104827678A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104626669A (en) * | 2015-01-13 | 2015-05-20 | 上海杉华复合材料科技有限公司 | Carbon fiber enhanced composite material panel and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105658005A (en) * | 2016-03-17 | 2016-06-08 | 浙江兆奕科技有限公司 | Product shell adopting cellulose plate technology and production equipment and manufacturing process thereof |
| CN109774261A (en) * | 2019-02-28 | 2019-05-21 | 广东新秀新材料股份有限公司 | Visual effect material, preparation method and application |
| CN109981847A (en) * | 2019-03-26 | 2019-07-05 | Oppo广东移动通信有限公司 | Electronic equipment, glass cover-plate and its manufacturing method |
| WO2021114482A1 (en) * | 2019-12-11 | 2021-06-17 | 东莞市昊通塑胶科技有限公司 | Plastic shell with two layers or multiple layers of decorative fabric, and process for manufacturing same |
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Effective date of registration: 20150917 Address after: 511431, 90, 188 Industrial Road, Pingshan Town, Guangdong, Dongguan, Tangxia Applicant after: XIN XIU ELECTRONICS CO., LTD. Address before: 523738, 90, 188 Industrial Road, Pingshan Town, Guangdong, Dongguan, Tangxia Applicant before: Wen Feng |
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Application publication date: 20150812 |