CN202480508U - Anti-static-electricity plate - Google Patents
Anti-static-electricity plate Download PDFInfo
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- CN202480508U CN202480508U CN2012200988900U CN201220098890U CN202480508U CN 202480508 U CN202480508 U CN 202480508U CN 2012200988900 U CN2012200988900 U CN 2012200988900U CN 201220098890 U CN201220098890 U CN 201220098890U CN 202480508 U CN202480508 U CN 202480508U
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- static
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Abstract
The utility model discloses an anti-static-electricity plate which is of a multi-layer staggered structure. A polymer or a polymer composite material is used as a base material; a polymer filled with an anti-static-electricity filler is used as an anti-static-electricity layer; a plurality of base material layers are staggeredly composite with a plurality of anti-static-electricity layers, so that the multi-layer anti-static-electricity composite plate of which the upper surface layer and the lower surface layer are anti-static-electricity layers is obtained. According to the anti-static-electricity plate, the anti-static-electricity layers are thinner than the base material layers; the total amount of anti-static-electricity agents added in all the anti-static-electricity layers is smaller than or equal to the total additive amount of the anti-static-electricity agents added in the conventional anti-static-electricity plate; the anti-static-electricity agent proportion of the anti-static-electricity layers is high, so that the whole plate has a good anti-static-electricity effect; multiple channels formed among sections perpendicular to the thickness direction of the laminated layers are conductive; and therefore, even if the anti-static-electricity layers on the upper surface and the lower surface are damaged, the inner layers are not influenced.
Description
Technical field
The utility model relates to macromolecular material advanced machining technology field, more particularly, relates to a kind of sheet material process technology, particularly relates to the antistatic sheet material that compound extruding method obtains.
Background technology
Along with the continuous quickening of polymer composite development speed, anti-static material is applied in production and the life more and more.Especially in fields such as occasions such as ordnance factory, flour mill, oil gas field and semi-conducting material processing and manufacturing, communications; Requirement for electrostatic defending is high especially; Stability and reliability for the security that guarantees to produce and information transmission; Need ornament materials and workbench all to have good electrostatic-proof function, to prevent the generation of electrostatic hazard.
The anti-static layered board material mainly contains following three kinds of production methods at present:
1. before the polymer raw material moulding, add antistatic filler, generally through mixing extruding pelletization is passed through in antistatic filler and polymer raw material blend then, final extrusion modling obtains having the sheet material of anti-static function.This method has two shortcomings, and the one, the thickness of sheet material is bigger, if all add antistatic filler, cost will improve greatly; The 2nd, the adding of a large amount of antistatic fillers will inevitably make the mechanical property of material descend greatly.
2. on transparency carrier, with electricity slurry or sputtering way, plate ATO or ITO class transparent material, thereby form the optical grade anti-static material, there are three shortcomings in the method, and the one, equipment cost and material cost are too high; The 2nd, the plated film size can receive the restriction of instrument size; The 3rd, the method for sputtering large scale film uniformity is bad.
3. with the wet method preparation,, coat antistatic additive, reach antistatic effect after the sclerosis then with spraying impregnating mode as on high transparent plate surfaces such as PC, PMMA or PET.The major defect of this method is, product quality is filled a prescription, the influence of coating method and equipment, operating environment and machined parameters is very big, so product quality is too poor.
More than in three kinds of methods, the cost of method 2 is the highest, the bad control of the product quality of method 3.Therefore for method 1, if can its cost be reduced, can make composite board keep mechanical property preferably again, making the field for the anti-static layered board material so will be very big technological break-through.
Summary of the invention
The utility model purpose is to propose a kind of antistatic conductive sheet material, can not only solve shortcomings such as existing antistatic sheet material mechanical strength is low, amount of filler is big, and have the advantage that cost is low, antistatic effect is good.
To achieve these goals; The present invention adopts following technical scheme: a kind of antistatic sheet material, have the multilayer alternating structure, with polymer or its composite as base material; The polymer that adopts antistatic filler to fill is an antistatic layer; Through substrate layer and antistatic layer alternate multiple is compound, the top layer all is the multilayer anti-static layered board material of antistatic layer about obtaining, and confirms the addition of antistatic additive according to the application scenario.A kind of antistatic sheet material of the present invention; The thickness of antistatic layer can be less than the thickness of substrate layer; The total amount of the antistatic additive that all antistatic layers add is less than or equal to the total addition level of the antistatic additive of traditional antistatic sheet material; Because the antistatic additive ratio of the antistatic layer of a kind of antistatic sheet material of the present invention is high, make that the whole antistatic effect of sheet material is good, particularly there is multichannel to have electric conductivity between cross section perpendicular to the laminated thickness direction; Even the antistatic layer of upper and lower surfaces receives breakage, internal layer can not be affected.
A kind of antistatic sheet material of the utility model, substrate layer can adopt macromolecular material (as PA, PE, PP, ABS, PB, etc.) or their composite, antistatic filler adopts conductive filler (like metal dust, carbon black, CNT etc.).
A kind of antistatic sheet material of the utility model, stepped construction can be ABAB ... ABBA (A represents antistatic layer, and B represents substrate layer) also can be ABAB ... BABA as long as can satisfy alternately laminatedly, can guarantee that again the sheet material upper and lower surfaces all is that antistatic layer gets final product.
How much a kind of antistatic sheet material of the utility model, the sheet material number of plies can according to the regulating of decker number, and can be eight layers, three Floor 12s or 128 layers etc.
The forming method of a kind of antistatic sheet material of the utility model is following:
1. the blend (A layer) of macromolecular material or their composite (B layer), macromolecular material or their composite and antistatic filler adds fusion plastification in the two extruders respectively; High-temperature fusant is fed forward, and goes out to merge into 1 strand of AB two-layer compound melt at junction station;
2.AB the two-layer compound melt is extruded the back from junction station and is got into positive decker, is divided into the double-deck melt of four gangs of AB, obtains eight layers of compounding flux of one ABABABAB through behind the decker;
3. eight layers of compounding flux get into anti-decker subsequently, are divided into four strands equally, extrude and obtain BABA ... ABAB three Floor 12 compounding flux; ABAB ... Structure accounts for the half the of whole thickness, and second half the structure of layer of sheet material does ... BA BA, final through a mouthful mould typing; Obtain range upon range of antistatic sheet material; The upper and lower surfaces of sheet material all is an antistatic layer, and internal layer also has antistatic layer, and middle is the stack of two-layer substrate layer.
The present invention has the following advantages:
1. a kind of anti-static plate equipment structure of the utility model is simple; Through with substrate layer and the coextrusion of antistatic layer alternate multiple; The ingenious sheet material that obtains having two-sided anti-static function; Under the situation that antistatic filler total amount does not increase, the antistatic additive ratio that antistatic layer contains is high, and the antistatic effect of resulting product is better.
2. the addition of the antistatic filler of a kind of antistatic sheet material of the utility model is less, only adds antistatic filler in some layer, has practiced thrift cost of material; The existence of substrate layer, the affected degree of the mechanical property of composite board reduces.
3. the forming method equipment needed thereby of a kind of antistatic sheet material of the utility model is simple, and only need extruder, junction station, decker and a mouthful mould be together in series gets final product, and does not need many extruders, and equipment cost is low, and it is few to take up space.
Description of drawings
Fig. 1 is a kind of antistatic sheet material section structure sketch map of the utility model.
Fig. 2 is melt principle of stratification figure in the positive decker of a kind of antistatic sheet material of the utility model.
Fig. 3 is melt principle of stratification figure in the anti-decker of a kind of antistatic sheet material of the utility model.
Among the figure: the 1-antistatic layer; The 2-substrate layer; The antistatic sheet material of 3-; Melt in the positive decker of 4-; Melt in the 5-decker.
The specific embodiment
As shown in Figure 1, a kind of antistatic sheet material 3 has the multilayer alternating structure, and as substrate layer 2 (note is symbol B), the similar polymers that adopts antistatic filler to fill is antistatic layer 1 (note is symbol A) with the single polymers material, and fitting through alternate multiple forms.And substrate layer 2 can be arbitrary proportion with the bed thickness ratio of antistatic layer 1.The top layer up and down of antistatic sheet material 3 all is an antistatic layer 1, and the specific insulation of antistatic sheet material 3 can be less than 10
6Ω cm satisfies various antistatic requirements.
A kind of antistatic sheet material of the utility model, substrate layer 2 (B) can adopt any resins for universal use [like nylon (PA), polyethylene (PE) etc.], and antistatic layer 1 (A) filler adopts conductive filler (like carbon black, CNT etc.).
A kind of antistatic sheet material of the utility model, the structure of antistatic sheet material 3 is ABAB......ABBA, or ABAB......BA BA, as long as can satisfy alternately laminatedly, can guarantee that again antistatic sheet material 3 upper and lower surfaces all are that antistatic layer 1 gets final product.
How much a kind of antistatic sheet material of the utility model, antistatic sheet material 3 numbers of plies can according to the regulating of decker number, and can be eight layers, three Floor 12s or 128 layers etc.
The forming method of a kind of antistatic sheet material of the utility model is following:
1. substrate layer 2 (B) raw material and antistatic layer 1 (A) raw material add fusion plastification in the two extruders respectively, and high-temperature fusant is fed forward, and go out to merge into one AB two-layer compound melt at junction station;
2.AB the two-layer compound melt is extruded the back from junction station and is got into positive decker, is divided into the double-deck melt of four bursts of AB structures, through melt 4 in eight layers of positive decker that obtain one ABABABAB structure behind the decker, sees shown in Figure 2;
3. eight layers of interior melt 4 of positive decker get into anti-decker subsequently, are divided into four strands equally, extrude and obtain ABABAB ... Melt 5 in the anti-decker of three Floor 12s of BABA version, final through a mouthful mould typing, obtain range upon range of antistatic sheet material 3.
Shown in Figure 3 is the range upon range of principle of anti-decker; AB two-layer compound melt is extruded the back from junction station and is got into anti-decker; The double-deck melt that is divided into four bursts of AB structures obtains one ABABBABA or ABABABBA structure through behind the anti-decker, and the top layer of its structure all is an antistatic layer.Anti-layering can account for thickness half the of whole sheet material.
Embodiment one is: raw material adopts nylon, polyethylene and conductive black, and conductive layer is the blend composition of polyethylene and conductive black, and substrate layer is a nylon.The compound process double screw extruder of at first that drying is good polyethylene and 15% conductive black carries out granulation, drying obtains the antistatic layer raw material, and the antistatic layer raw material joins respectively with dry good nylon and carries out fusion plastification in the two extruders then, and each section of extruder temperature is set at nylon and poly processing temperature respectively; According to bed thickness needs adjustment screw speed is 1: 1; Extrusion neck ring mold and range upon range of device design temperature are 240 ℃, and mouthful mould thickness is 3mm, after gained AB two-layer compound melt is extruded four strands of range upon range of devices of positive decker of back entering one joint from junction station; Get into the range upon range of device joint of four strands of anti-deckers of a joint again; Mouthful mould typing of final process obtains the antistatic sheet material of three Floor 12s, and substrate layer equates with the bed thickness of antistatic layer; Like this after the different material process coextrusion system; Through cooling and shaping, obtain the three Floor 12s antistatic sheet material of top layer specific insulation less than 106 Ω cm, meet application request fully.
Claims (3)
1. antistatic sheet material; It is characterized in that: have the multilayer alternating structure; With polymer or its composite as base material; The polymer that adopts antistatic filler to fill is an antistatic layer, and through substrate layer and antistatic layer alternate multiple is compound, obtaining up and down, the top layer all is the multilayer anti-static layered board material of antistatic layer.
2. a kind of antistatic sheet material according to claim 1 is characterized in that: substrate layer is PE, PP, ABS, PB.
3. a kind of antistatic sheet material according to claim 1 is characterized in that: antistatic filler adopts metal dust, carbon black or CNT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200988900U CN202480508U (en) | 2012-03-15 | 2012-03-15 | Anti-static-electricity plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200988900U CN202480508U (en) | 2012-03-15 | 2012-03-15 | Anti-static-electricity plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202480508U true CN202480508U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200988900U Expired - Fee Related CN202480508U (en) | 2012-03-15 | 2012-03-15 | Anti-static-electricity plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202480508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615906A (en) * | 2012-03-15 | 2012-08-01 | 北京化工大学 | Antistatic plate and molding method thereof |
-
2012
- 2012-03-15 CN CN2012200988900U patent/CN202480508U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615906A (en) * | 2012-03-15 | 2012-08-01 | 北京化工大学 | Antistatic plate and molding method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20140315 |