CN113459484A - Vacuum forming method - Google Patents
Vacuum forming method Download PDFInfo
- Publication number
- CN113459484A CN113459484A CN202110744542.XA CN202110744542A CN113459484A CN 113459484 A CN113459484 A CN 113459484A CN 202110744542 A CN202110744542 A CN 202110744542A CN 113459484 A CN113459484 A CN 113459484A
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- CN
- China
- Prior art keywords
- vacuum forming
- forming method
- resistance inorganic
- base material
- inorganic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000007666 vacuum forming Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 64
- 229910010272 inorganic material Inorganic materials 0.000 claims abstract description 25
- 239000011147 inorganic material Substances 0.000 claims abstract description 25
- 230000001050 lubricating effect Effects 0.000 claims abstract description 12
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- XXLJGBGJDROPKW-UHFFFAOYSA-N antimony;oxotin Chemical compound [Sb].[Sn]=O XXLJGBGJDROPKW-UHFFFAOYSA-N 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003666 anti-fingerprint Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012769 display material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/10—Forming by pressure difference, e.g. vacuum
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/60—Releasing, lubricating or separating agents
-
- 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
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/26—Component parts, details or accessories; Auxiliary operations
- B29C51/30—Moulds
- B29C51/36—Moulds specially adapted for vacuum forming, Manufacture thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application discloses a vacuum forming method, which comprises the steps of taking a thermoplastic resin material as a base material, doping a high-resistance inorganic material with an anti-static function into the base material, adding a lubricating material with a lubricating function into the base material to obtain a material for vacuum forming, and carrying out vacuum forming by using the material for vacuum forming. The high-resistance inorganic material is added into the base material, so that the vacuum forming material has an anti-static function, and the high-resistance inorganic material can influence the texture uniformity and physical properties of the vacuum forming material.
Description
Technical Field
The invention relates to the technical field of vacuum forming, in particular to a vacuum forming method.
Background
Vacuum forming, commonly known as blister, is a plastic processing technology, and is mainly characterized in that flat plastic hard sheets are heated to be soft, then are adsorbed on the surface of a mold in vacuum, and are formed after being cooled, and materials processed by vacuum forming are flake-shaped polyvinyl chloride, polystyrene, polyethylene and the like. Generally, since the increase in the content of the inorganic powder lowers the fluidity of a kneaded product of the thermoplastic resin and the inorganic powder, it is difficult to mold a kneaded product having an increased content of the inorganic powder into a sheet having a uniform texture and good physical properties. When a sheet for vacuum molding having a high inorganic powder content is molded by vacuum molding, the sheet has a problem that the sheet has insufficient conformability to a mold and cannot reproduce the details of the mold. Therefore, the content of the inorganic powder in the vacuum molding sheet cannot be increased at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a vacuum forming method capable of improving the mold-following property of a material and improving the forming quality in the case where the content of an inorganic substance in the material for vacuum forming is high.
In order to achieve the purpose, the invention provides the following technical scheme:
a vacuum forming method, using a thermoplastic resin material as a base material, doping a high-resistance inorganic material with an antistatic function into the base material, adding a lubricating material with a lubricating function into the base material to obtain a material for vacuum forming, and performing vacuum forming by using the material for vacuum forming.
Preferably, in the above vacuum forming method, the substrate: the high-resistance inorganic material: the lubricant comprises (40-60), (30-50) and (10-20).
Preferably, in the vacuum forming method, the high-resistance inorganic material is tin antimony oxide.
Preferably, in the vacuum forming method, the high-resistance inorganic material is in a powder form, and an average particle diameter of the high-resistance inorganic material in the powder form is 0.5 to 50 μm.
Preferably, in the above vacuum forming method, the thermoplastic resin material is one or a combination of polyvinyl chloride, polystyrene, polyethylene and polyimide.
Preferably, in the vacuum forming method, the lubricant is a polyfluoro material.
Preferably, in the vacuum forming method, the polyfluoro material is one or a combination of polyvinylidene fluoride and polytetrafluoroethylene.
Compared with the prior art, the invention has the beneficial effects that:
the vacuum forming method of the invention takes a thermoplastic resin material as a base material, mixes a high-resistance inorganic material with an antistatic function into the base material, adds a lubricating material with a lubricating function into the base material to obtain a material for vacuum forming, and carries out vacuum forming by using the material for vacuum forming.
The high-resistance inorganic material is added into the base material, so that the vacuum forming material has an anti-static function, and the high-resistance inorganic material can influence the texture uniformity and physical properties of the vacuum forming material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic diagram illustrating a vacuum forming method according to an embodiment of the present invention.
Detailed Description
The core of the invention is to provide a vacuum forming method, which can improve the following performance of the material to a mould and improve the forming quality under the condition of high inorganic content in the material for vacuum forming.
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.
The embodiment of the invention provides a vacuum forming method, which comprises the following steps: a thermoplastic resin material is used as a base material, a high-resistance inorganic material with an antistatic function is doped into the base material, a lubricating material with a lubricating function is added into the base material to obtain a material for vacuum forming, and the material for vacuum forming is used for vacuum forming.
The high-resistance inorganic material is added into the base material, so that the vacuum forming material has an anti-static anti-interference function after being formed and can be applied to screen display materials.
The vacuum forming process adopts a structure as shown in figure 1, an upper pressing block 2 and a lower die 4 are arranged in a vacuum box 1, the upper pressing block 2 is connected with an upper rotating shaft 3, the upper rotating shaft 3 drives the upper pressing block 2 to rotate, the lower die 4 is connected with a lower rotating shaft 5, the lower rotating shaft 5 drives the lower die 2 to rotate, and a heating component is arranged in the lower die 4. During vacuum forming, a material for vacuum forming is added into a lower die 4 in a vacuum box 1, after the vacuum box 1 is vacuumized, a lower pressing block 2 is tightly pressed in the lower die 4, a heating part in the lower die 4 is heated, the vacuum forming material is heated, and vacuum forming is completed.
Further, in the present embodiment, the substrate: high-resistance inorganic material: the lubricant comprises (40-60), (30-50) and (10-20). The high-resistance inorganic material has high content, and the lubricating material can allow a large amount of high-resistance inorganic materials to exist, so that the material for vacuum forming has the functions of static electricity prevention and interference resistance after being formed, has good fluidity, has good follow-up performance on a mold, and can reproduce the details of the mold.
In this embodiment, the high-resistance inorganic material is tin antimony oxide, and the surface resistance value of the formed material can reach 1E 7-1E 10 by the tin antimony oxide, so that the product achieves the functions of static electricity prevention and interference resistance. Of course, the high-resistance inorganic material may be other inorganic oxides, and is not limited to the embodiment described in the present embodiment.
Further, in the present example, the high-resistance inorganic material is in a powder form, and the average particle diameter of the high-resistance inorganic material in the powder form is 0.5 μm to 50 μm. If the particle size is too small, the viscosity significantly increases during kneading with the thermoplastic resin, making the production of the sheet more difficult. On the other hand, if the average particle size is 0.5 μm or more, there will be no problem in the production of a sheet. On the other hand, if the particle diameter is too large, the surface of the sheet becomes rough, and the appearance of the molded article is deteriorated. On the other hand, if the average particle diameter is 50 μm or less, the appearance of the molded article is improved.
In this embodiment, the thermoplastic resin material is one or a combination of polyvinyl chloride, polystyrene, polyethylene and polyimide.
In this embodiment, the lubricant is a polyfluoro material, which not only has a good lubricating function, but also can make the material have good fluidity, good adaptability to the mold, and anti-fingerprint and anti-oil-stain functions.
Preferably, in this embodiment, the polyfluoro material is one or a combination of polyvinylidene fluoride and polytetrafluoroethylene.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A vacuum forming method is characterized in that a thermoplastic resin material is used as a base material, a high-resistance inorganic material with an antistatic function is doped into the base material, a lubricating material with a lubricating function is added into the base material to obtain a material for vacuum forming, and the vacuum forming is carried out by using the material for vacuum forming.
2. The vacuum forming method according to claim 1, wherein the substrate: the high-resistance inorganic material: the lubricant comprises (40-60), (30-50) and (10-20).
3. The vacuum forming method according to claim 1, wherein the high-resistance inorganic material is tin antimony oxide.
4. The vacuum forming method according to claim 1, wherein the high-resistance inorganic material is in a powder form, and an average particle diameter of the high-resistance inorganic material in the powder form is 0.5 μm to 50 μm.
5. The vacuum forming method according to claim 1, wherein the thermoplastic resin material is one or more of polyvinyl chloride, polystyrene, polyethylene and polyimide.
6. The vacuum forming method according to claim 1, wherein the lubricant material is a polyfluoro material.
7. The vacuum forming method according to claim 6, wherein the polyfluoro material is one or a combination of polyvinylidene fluoride and polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110744542.XA CN113459484A (en) | 2021-06-30 | 2021-06-30 | Vacuum forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110744542.XA CN113459484A (en) | 2021-06-30 | 2021-06-30 | Vacuum forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113459484A true CN113459484A (en) | 2021-10-01 |
Family
ID=77877154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110744542.XA Pending CN113459484A (en) | 2021-06-30 | 2021-06-30 | Vacuum forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113459484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379504A (en) * | 2017-08-25 | 2017-11-24 | 许厦聪 | Coiled plastic material plastic-suction forming equipment |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001288279A (en) * | 2000-04-05 | 2001-10-16 | Bando Chem Ind Ltd | Hard vinyl chloride resin sheet for vacuum forming and its manufacturing method |
| JP2006281452A (en) * | 2005-03-31 | 2006-10-19 | Dainippon Ink & Chem Inc | Antistatic laminated sheet and its molded product |
| CN202114849U (en) * | 2011-06-23 | 2012-01-18 | 蚌埠市振中橡塑制品有限公司 | Vacuum cover of pressure forming machine template |
| CN103562281A (en) * | 2011-05-31 | 2014-02-05 | 株式会社Ｔｂｍ | Method for producing inorganic substance powder highly-oriented thin film sheet |
| US20150057201A1 (en) * | 2012-04-13 | 2015-02-26 | Umg Abs, Ltd. | Lubricating thermoplastic resin composition and formed article thereof |
| CN104774407A (en) * | 2015-04-25 | 2015-07-15 | 桂林理工大学 | Method for preparing PVC (polyvinyl chloride)-based wood-plastic composite material by using peanut shell powder |
| CN105538577A (en) * | 2015-12-21 | 2016-05-04 | 华中科技大学 | Hot press molding device for carbon fiber enhanced polyether-ether-ketone (PEEK) composite material and technological method thereof |
| CN106715082A (en) * | 2014-09-29 | 2017-05-24 | 株式会社Ｔｂｍ | Precursor of sheet for vacuum molding use, sheet for vacuum molding use, method for producing the sheet, and method for producing molded article |
-
2021
- 2021-06-30 CN CN202110744542.XA patent/CN113459484A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001288279A (en) * | 2000-04-05 | 2001-10-16 | Bando Chem Ind Ltd | Hard vinyl chloride resin sheet for vacuum forming and its manufacturing method |
| JP2006281452A (en) * | 2005-03-31 | 2006-10-19 | Dainippon Ink & Chem Inc | Antistatic laminated sheet and its molded product |
| CN103562281A (en) * | 2011-05-31 | 2014-02-05 | 株式会社Ｔｂｍ | Method for producing inorganic substance powder highly-oriented thin film sheet |
| CN202114849U (en) * | 2011-06-23 | 2012-01-18 | 蚌埠市振中橡塑制品有限公司 | Vacuum cover of pressure forming machine template |
| US20150057201A1 (en) * | 2012-04-13 | 2015-02-26 | Umg Abs, Ltd. | Lubricating thermoplastic resin composition and formed article thereof |
| CN106715082A (en) * | 2014-09-29 | 2017-05-24 | 株式会社Ｔｂｍ | Precursor of sheet for vacuum molding use, sheet for vacuum molding use, method for producing the sheet, and method for producing molded article |
| CN104774407A (en) * | 2015-04-25 | 2015-07-15 | 桂林理工大学 | Method for preparing PVC (polyvinyl chloride)-based wood-plastic composite material by using peanut shell powder |
| CN105538577A (en) * | 2015-12-21 | 2016-05-04 | 华中科技大学 | Hot press molding device for carbon fiber enhanced polyether-ether-ketone (PEEK) composite material and technological method thereof |
Non-Patent Citations (4)
| Title |
|---|
| TERRY RICHARDSON: "《复合材料设计指南》", 31 December 1996, 武汉工业大学出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379504A (en) * | 2017-08-25 | 2017-11-24 | 许厦聪 | Coiled plastic material plastic-suction forming equipment |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20211001 |