CN100389947C - Method for producing permanent anti-static plate - Google Patents
Method for producing permanent anti-static plate Download PDFInfo
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- CN100389947C CN100389947C CNB2003101132669A CN200310113266A CN100389947C CN 100389947 C CN100389947 C CN 100389947C CN B2003101132669 A CNB2003101132669 A CN B2003101132669A CN 200310113266 A CN200310113266 A CN 200310113266A CN 100389947 C CN100389947 C CN 100389947C
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- static plate
- type anti
- manufacture method
- permanent type
- static
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 claims abstract description 41
- 239000011347 resin Substances 0.000 claims abstract description 33
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 239000000758 substrate Substances 0.000 claims description 25
- 230000003287 optical effect Effects 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 12
- 230000004927 fusion Effects 0.000 claims description 11
- 229920000642 polymer Polymers 0.000 claims description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 9
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 9
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 8
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 7
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 7
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 7
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 6
- 229920000089 Cyclic olefin copolymer Polymers 0.000 claims description 6
- 239000004713 Cyclic olefin copolymer Substances 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 229910052787 antimony Inorganic materials 0.000 claims description 3
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 2
- ADFPJHOAARPYLP-UHFFFAOYSA-N methyl 2-methylprop-2-enoate;styrene Chemical compound COC(=O)C(C)=C.C=CC1=CC=CC=C1 ADFPJHOAARPYLP-UHFFFAOYSA-N 0.000 claims description 2
- 239000002216 antistatic agent Substances 0.000 abstract description 11
- 229920003023 plastic Polymers 0.000 abstract description 8
- 239000004033 plastic Substances 0.000 abstract description 8
- 239000011247 coating layer Substances 0.000 abstract description 2
- 238000012797 qualification Methods 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 29
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- 239000000047 product Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
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Images
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to a method for producing a permanent anti-static plate, which is a method for producing a permanent anti-static plate by a co-extrusion plastic shaping technique. When the permanent anti-static plate is produced, a permanent surface is processed in an anti-static way. In a producing technique, when the permanent anti-static plate is shaped, the resin of 10 to 500 um adding with an anti-static material is extruded on the surface of the permanent anti-static plate, and a surface anti-static material coating layer with a single side or double sides is formed, so the mass production is easy to obtain, the manufacturing cost is reduced and the production qualification rate is greatly enhanced.
Description
Technical field
The invention relates to a kind of manufacture method of permanent type anti-static plate, refer in particular to a kind of manufacture method of anti-static plate, it is to utilize a co-extrusion to give as security plastics forming technique, when an anti-static plate molding substrate, on substrate surface, squeeze out simultaneously the tree resin layer of 10-500um interpolation anti-static material, formation antistatic surface material at least simultaneously is on this substrate, thereby formation permanent type anti-static plate at least simultaneously.
Background technology
Along with various synthetic resin materials use in daily life widely, many families electrical article or office's utensil have and the factory of dustless grade, and products such as laboratory are more and more to the demand of anti-static material.Generally speaking, plastic product is splendid because of its electric insulation effect, causes being easy to generate and remaining static, and the dust in the absorbed air easily, thereby causes damage that material or utensil have or the action that makes the mistake to produce.
Along with the extensive quilt of optical material uses, as: the optical sheet of transparent grades such as mobile phone, PDA and display pannel to penetrance, cleanliness factor, adherence and scratch resistance all than common engineering use go up require high.
Antistatic grade is meant that generally surface impedance is 10
6-10
9Ω/m
2Scope in.Generally make an addition to the anti-static material in the plastic raw materials, mainly contain metal dust and metal oxide particle or some electroconductive polymer complex compounds such as ATO, ITO such as copper powder, silver powder, or material such as graphite, all be to belong to the higher material of price.For reaching antistatic effect, following three kinds of methods are being arranged traditionally:
(1) before the plastic raw materials moulding, just anti-static material is added in the raw material, generally can pass through the plastic milling mode, conductive material is fully mixed with plastic raw materials, and after extracting granulation out, form plastic pellet again with conductive characteristic, form sheet material through extrusion process at last, directly have anti-static function.But the antistatic sheet material of Sheng Chaning has two shortcomings by this way:
(1) because of sheet metal thickness about 1-5mm, if all material all contains anti-static material, can significantly improve the cost of material;
(2) conductive material that generally has an antistatic effect all has color or opacity, if fill up fully in the middle of 2-5mm sheet material, can cause material not have the transparency or reduces the light percent of pass.
(2) on transparency carrier, with plasma (plasma) mode or sputter (sputter) mode, plate ATO or ITO class transparent material, on high transparent plate surfaces such as PC, PMMA, ABS, PET or MS, with plasma (plasma) mode or sputter (sputter) mode, plate ATO or ITO class transparent material, and form the optical grade anti-static material, this type of processing procedure also has three shortcomings:
(1) the required equipment cost height of processing procedure, and need high voltage, material cost is also very high, and expensive problem causes this series products to be used widely;
(2) because the required equipment of processing procedure is a vacuum chamber (chamber), along with the size requirements of display is increasing, the plated film size will be subjected to the restriction of chamber size;
(3) spatter and cross the not good shortcoming of the uniformity of processing procedure on large scale.
(3) carry out with wet process, as: on the high transparent plate surfaces such as PC, PMMA, MS, ABS, PET or COC, with the spraying, the roller coating, modes such as impregnation or pouring curtain are coated antistatic additive, through high-energy light such as heating or ultraviolet ray irradiation after-hardening, reach anlistatig effect.Wet type coating process major defect is: the quality of product is coated with material prescription, coating method and equipment, and the influence of operating environment and machined parameters is very big, thereby causes the not high shortcoming of acceptance rate.
Moreover as the patent of Taiwan Announcement Number 525015, name is called " antistatic surface coating structure of LCD and method "; The patent name of Announcement Number 522432 is " coating process that makes the antistatic coating layer of information display panel directly be connected with the ground connection conductive component "; The patent name of Announcement Number 522426 is " can make information display have the coating process of antistatic fully, antireflection and adjustable penetrance " for the patent name of " can form the antireflection/antistatic coating of ater display floater on information display " and Announcement Number 516065, and present conventional art all rests on the mode of coating.
Therefore, how a kind of manufacture method of novel permanent type anti-static plate is proposed at the problems referred to above, not only can improve the shortcoming that tradition needs secondary operations, be not to use for a long time the person eagerly to look forward to and the inventor person of bearing in mind always always, the inventor is based on the research of engaging in Related product for many years, exploitation and sell practical experience, it is the idea of thinking and improveing, poor its people's professional knowledge, through research and design and special topic are inquired in many ways, finally work out a kind of manufacture method improvement of permanent type anti-static plate, can solve the above problems.
Summary of the invention
Main purpose of the present invention provides a kind of manufacture method of permanent type anti-static plate, it utilizes at least two extruders, the first extruder extrusion molten, one substrate, and the second extruder extrusion molten, one antistatic resin layer, again both co-extruded are combined into a platy structure, to become a permanent type anti-static plate, because it does not need secondary operations, and do not need under vacuum, to produce, reach the purposes that reduce cost with a large amount of manufacturings.
Secondary objective of the present invention provides a kind of manufacture method of permanent type anti-static plate, it is to utilize at least two extruders, this antistatic resin stratification is put in the substrate at least one surface, by different use fields, and appropriateness is adjusted the antistatic resin that needs to put how many layers on the surface of substrate in processing procedure, reaches the purpose that the antistatic resin layer is all put on two surfaces of bilayer or substrate.
The object of the present invention is achieved like this: a kind of manufacture method of permanent type anti-static plate is characterized in that: it mainly comprises the steps:
(1) use first extruder with an optical resin extrusion molten one substrate;
(2) use second extruder that interpolation one conductive material is squeezed into fusion one antistatic resin layer in this optical resin;
(3) this antistatic resin is placed on the substrate at least one surface by this second extruder;
(4) this fusion substrate and fusion antistatic resin layer co-extruded are combined into the permanent type anti-static plate of a platy structure.
This optical resin is to be selected from wherein at least a of Merlon (Polycarbonate), polymethyl methacrylate (Polymethyl mathacrylate), copolymer of methyl methacrylatestyrene (MS), acrylonitrile-butadiene-styrene copolymer (ABS), polyester (PET) or cyclic olefin copolymer (COC).
This conductive material is a kind of polymer with electric conductivity.This conductive material is a kind of compound with electric conductivity.This polymer with electric conductivity is the polymer that multi-styrene acid mixes with many aniline.This compound with electric conductivity is the compound of stanniferous or the compound that contains antimony.The thickness of this substrate is at 1mm-5mm.The thickness of this antistatic resin layer is at 10-500um.This permanent type anti-static plate manufacture method is to be controlled in the dustfree environment to carry out.This dustfree environment is to be controlled in the class 10000.
The present invention advocates when producing the anti-static plate substrate, finishing the permanent type antistatic surface simultaneously handles, handle secondary processing method to replace conventional surface, be on the production technology when the anti-static plate molding substrate, on plate surface, squeeze out simultaneously the resin of 10-500um interpolation anti-static material, and the antistatic surface material of formation single or double is coated with, and reach a large amount of easily and produce, and the reduction manufacturing cost reaches purposes such as significantly improving the production acceptance rate.
Describe in detail below in conjunction with the preferred embodiment conjunction with figs..
Description of drawings
Fig. 1 is the manufacture method schematic flow sheet of permanent type anti-static plate of the present invention;
Fig. 2 is the structural representation of the permanent type anti-static plate of platy structure of the present invention;
Fig. 3 is the manufacture method block schematic diagram of the permanent type anti-static plate of platy structure of the present invention.
Has the body embodiment
Consult shown in Figure 1ly, be the permanent type anti-static plate manufacture method flow chart of a preferred embodiment of the present invention, the present invention is a kind of manufacture method about the permanent type anti-static plate, and its key step is to comprise:
Step 1: use first extruder with an optical resin extrusion molten one substrate;
Step 2: use second extruder that interpolation one conductive material is squeezed into fusion one antistatic resin layer in this optical resin;
Step 3: this antistatic resin is placed on the substrate at least one surface by second extruder;
Step 4: the permanent type anti-static plate that this fusion substrate and fusion antistatic resin layer co-extruded is combined into a platy structure.
Consult Fig. 2 and shown in Figure 3, it is the structural representation and the manufacturing process calcspar of permanent type anti-static plate of the platy structure of a preferred embodiment of the present invention; Wherein, the present invention is to use at least two extruders, and first extruder 14 is used for pushing substrate 16, uses the optical resin 12 as high transparents such as PC, PMMA, MS, ABS, PET or COC; Another second extruder 24 is used for pushing optical resin 12 raw materials, add conductive material 22 as antistatic resin layer 26, can be during moulding with distribution of material to the superficial layer of sheet material, use extrusion die 30 altogether that the optical resin 12 of this fusion is combined into a platy structure with these fusion conductive material 22 co-extruded at last; This conductive material is a kind of compound that has the polymer of electric conductivity or have electric conductivity, and this polymer with electric conductivity polymer that to be multi-styrene acid mix with many aniline, and this compound with electric conductivity can be the compound of stanniferous or be the compound that contains antimony.
When two kinds of materials each through independent extruding screw heating and melting, last at this coextrusion die head 30 near discharge opening, for example: T pattern mouth place (T-die) combines, wherein optical resin 12 forms the material of main substrate 16 by this first extruder 14 in the intermediate layer, and the raw material that 24 of this second extruders will contain anti-static material is scattered on the both side surface of this substrate.Generally speaking, the controllable thickness of this substrate 16 is formed on the scope of 1mm-5mm, 26 layers of thickness range that then is controlled at 10-500um of antistatic resin, and the surperficial permanent type anti-static plate 1 of formation single or double, thereby form permanent type anti-static plates 1 double-deck or three layers.
By the co-extrusion modling method, formed material surface quality depends primarily on the roll extrusion condition of cooling roller and the surface appearance and the processing environment of roller.Generally speaking, when producing optics sheet material, except using the former material of optical-grade, as PC, PMMA, MS, ABS, the optical material of high transparents such as PET or COC, process equipment and environment that optical grade also must be arranged, generally need the dustless grade of environment is controlled in the Class10000, and consider the cooling condition of material, do not have existing of residual stress when the moulding to guarantee material.
In addition, pass through coextrusion technology, can be effectively with the permanent type anti-static material, coat on the surface of optical substrate, and be controlled at the scope of thickness 10-500um, can reach the function of very thin one deck, and can reduce cost and produce and keep the high production acceptance rate of product in a large number with antistatic surface.
Be described further by the following examples.
The present invention is a manufacture method of making the permanent type anti-static plate with coetrusion.At first optical grade polyacrylate raw material (MG-5) adds the procedure for processing of antistatic additive earlier, utilize a granulation extruder earlier, add the light blue ito powder of 1%-30% according to percentage by weight, mix via quantitative and PMMA, after adding processing aids such as dispersant, plasticiser, be extruded into the strip raw material after fully mixing via extruder; Via after the tank cooling and dicing, form PMMA raw material again with anti-static function.
During plate forming, the main raw material that adopts is the optical grade polyacrylate material of Sumitomo Chemical MG-5, through 70-90 ℃, after the 3-6 hour abundant drying, with 240-280 ℃ processing temperature, the PMMA plastics are pressed into the middle sheet material of 1.9mm via main extruder, and the antistatic polypropylene acid esters raw material that pre-preparation is finished is after super-dry, the thickness that is squeezed into 50um is formed at respectively on the surface of middle sheet material of 1.9mm, finally forms the anti-static optical grade polypropylene acid esters sheet material of 2.0mm.
Final product finds that penetrance can reach 89% after measuring through the light percent of pass, and surperficial pencil hardness can reach 3H, and after the test of four carbon needle guide electric degree testers, finds surperficial surface impedance 2.5 * 10
9Ω/m
2, and find that this surface impedance value can't have significantly variation along with the increase of time, all can reach the requirement of the antistatic grade of permanent type.
In sum, the present invention be real be one to have novelty, creativeness and practicality.
The above only is a preferred embodiment of the present invention, is not to be used for limiting scope of the invention process, and all equalizations of doing according to shape of the present invention, structure, feature and spirit change and modify, and all should be included within protection scope of the present invention.
Claims (11)
1. the manufacture method of a permanent type anti-static plate, it is characterized in that: it mainly comprises the steps:
(1) use first extruder with an optical resin extrusion molten one substrate, this optical resin is to be selected from wherein at least a of acrylonitrile-butadiene-styrene copolymer, polyester or cyclic olefin copolymer;
(2) use second extruder that interpolation one conductive material is squeezed into fusion one antistatic resin layer in this optical resin;
(3) this antistatic resin is placed on the substrate at least one surface by this second extruder;
(4) this fusion substrate and fusion antistatic resin layer co-extruded are combined into the permanent type anti-static plate of a platy structure.
2. the manufacture method of permanent type anti-static plate according to claim 1 is characterized in that: the polyester in this optical resin is to be selected from wherein at least a of Merlon, polymethyl methacrylate or copolymer of methyl methacrylatestyrene.
3. the manufacture method of permanent type anti-static plate according to claim 1 is characterized in that: this conductive material is a kind of polymer with electric conductivity.
4. the manufacture method of permanent type anti-static plate according to claim 1 is characterized in that: this conductive material is a kind of compound with electric conductivity.
5. the manufacture method of permanent type anti-static plate according to claim 3 is characterized in that: this polymer with electric conductivity is the polymer that multi-styrene acid mixes with many aniline.
6. the manufacture method of permanent type anti-static plate according to claim 4 is characterized in that: this compound with electric conductivity is the compound of stanniferous.
7. the manufacture method of permanent type anti-static plate according to claim 4 is characterized in that: this compound with electric conductivity is the compound that contains antimony.
8. the manufacture method of permanent type anti-static plate according to claim 1 is characterized in that: the thickness of this substrate is at 1mm-5mm.
9. the manufacture method of permanent type anti-static plate according to claim 1 is characterized in that: the thickness of this antistatic resin layer is at 10-500um.
10. the manufacture method of permanent type anti-static plate according to claim 1 is characterized in that: this permanent type anti-static plate manufacture method is to be controlled in the dustfree environment to carry out.
11. the manufacture method of permanent type anti-static plate according to claim 10 is characterized in that: this dustfree environment is to be controlled in the class10000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101132669A CN100389947C (en) | 2003-11-11 | 2003-11-11 | Method for producing permanent anti-static plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101132669A CN100389947C (en) | 2003-11-11 | 2003-11-11 | Method for producing permanent anti-static plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1616213A CN1616213A (en) | 2005-05-18 |
| CN100389947C true CN100389947C (en) | 2008-05-28 |
Family
ID=34759868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101132669A Expired - Lifetime CN100389947C (en) | 2003-11-11 | 2003-11-11 | Method for producing permanent anti-static plate |
Country Status (1)
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|---|---|
| CN (1) | CN100389947C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225828A (en) * | 2017-05-19 | 2017-10-03 | 合肥市惠科精密模具有限公司 | A kind of Micro LED screens anti-static polycarbonate film and its preparation technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198331A (en) * | 1998-01-19 | 1999-07-27 | Jsp Corp | Polycarbonate resin extrusion foam/film laminate |
| JP2001347589A (en) * | 2000-06-09 | 2001-12-18 | Japan Polychem Corp | Thermoplastic resin foamed laminated sheet |
| JP2003170547A (en) * | 2001-12-07 | 2003-06-17 | Sumitomo Bakelite Co Ltd | Conductive sheet and container for conveying electronic component |
-
2003
- 2003-11-11 CN CNB2003101132669A patent/CN100389947C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11198331A (en) * | 1998-01-19 | 1999-07-27 | Jsp Corp | Polycarbonate resin extrusion foam/film laminate |
| JP2001347589A (en) * | 2000-06-09 | 2001-12-18 | Japan Polychem Corp | Thermoplastic resin foamed laminated sheet |
| JP2003170547A (en) * | 2001-12-07 | 2003-06-17 | Sumitomo Bakelite Co Ltd | Conductive sheet and container for conveying electronic component |
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|---|---|
| CN1616213A (en) | 2005-05-18 |
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