CN103753916B - A kind of conductive foaming composite sheet - Google Patents
A kind of conductive foaming composite sheet Download PDFInfo
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- CN103753916B CN103753916B CN201410030281.5A CN201410030281A CN103753916B CN 103753916 B CN103753916 B CN 103753916B CN 201410030281 A CN201410030281 A CN 201410030281A CN 103753916 B CN103753916 B CN 103753916B
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- Prior art keywords
- composite sheet
- styrene
- foaming composite
- conductive foaming
- intermediate layer
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- 238000005187 foaming Methods 0.000 title claims abstract description 33
- 239000002131 composite material Substances 0.000 title claims abstract description 30
- -1 Styrene-ethylene-butylene-styrene Chemical class 0.000 claims abstract description 19
- 239000004793 Polystyrene Substances 0.000 claims abstract description 17
- 229920002223 polystyrene Polymers 0.000 claims abstract description 17
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 15
- 239000006229 carbon black Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 11
- 239000004604 Blowing Agent Substances 0.000 claims abstract description 7
- 238000012856 packing Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000004100 electronic packaging Methods 0.000 claims description 4
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- VJRITMATACIYAF-UHFFFAOYSA-N benzenesulfonohydrazide Chemical compound NNS(=O)(=O)C1=CC=CC=C1 VJRITMATACIYAF-UHFFFAOYSA-N 0.000 claims description 2
- 235000010290 biphenyl Nutrition 0.000 claims description 2
- 239000004305 biphenyl Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 2
- VVWRJUBEIPHGQF-MDZDMXLPSA-N propan-2-yl (ne)-n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)\N=N\C(=O)OC(C)C VVWRJUBEIPHGQF-MDZDMXLPSA-N 0.000 claims description 2
- 150000001408 amides Chemical class 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- 230000003678 scratch resistant effect Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 7
- 239000004156 Azodicarbonamide Substances 0.000 description 3
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 3
- 235000019399 azodicarbonamide Nutrition 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- NBOCQTNZUPTTEI-UHFFFAOYSA-N 4-[4-(hydrazinesulfonyl)phenoxy]benzenesulfonohydrazide Chemical compound C1=CC(S(=O)(=O)NN)=CC=C1OC1=CC=C(S(=O)(=O)NN)C=C1 NBOCQTNZUPTTEI-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 102100032373 Coiled-coil domain-containing protein 85B Human genes 0.000 description 1
- 101000868814 Homo sapiens Coiled-coil domain-containing protein 85B Proteins 0.000 description 1
- 101000663001 Mus musculus TNFAIP3-interacting protein 1 Proteins 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Substances C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- 238000003490 calendering Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides a kind of conductive foaming composite sheet, it comprises polystyrene bottom, intermediate layer, superficial layer successively, and be made up of following percetage by weight raw material in described intermediate layer: polystyrene resin: 50%-80%; Styrene-ethylene-butylene-styrene: 8%-30%; Black 4%-25%; Described superficial layer is made up of following percetage by weight raw material: polystyrene resin 40%-89%; Styrene-ethylene-butylene-styrene: 5%-50%; Blowing agent 3%-40%; Carbon black: 3%-45%. High, the surperficial scratch-resistant of conductive foaming composite sheet impact strength of the present invention and easily plastics sucking moulding for making packing electronic component carrier band.
Description
Technical field
The present invention relates to a kind of conductive foaming composite for electronic packaging, specifically, relate to a kind of conduction and send outBubble composite sheet.
Background technology
Conductive foaming composite sheet, for packing as the carrying belt of the electronic devices and components such as mobile phone, computer, liquid crystal display, isPrevent electronic devices and components produce and transportation in because being subject to static, vibrations damage or contamination by dust. Sheet surface is easyCome off and pollute electronic devices and components with the friction of metal electron components and parts.
Conductive foaming sheet material has certain pooling feature, can effectively protect built-in electronic product injury-free. SimultaneouslyThe density of conductive foaming composite sheet can be accomplished lower one times than current common sheet material, greatly reduces packaging material cost.
Summary of the invention
In order to overcome above-mentioned technical problem, the invention provides high, the surperficial scratch-resistant of a kind of impact strength, easy plastics sucking mouldingFor making the conductive foaming composite sheet of electronic packaging vacuum formed box.
Another object of the present invention is to provide the preparation method of described conductive foaming composite sheet.
To achieve these goals, a kind of conductive foaming composite sheet of the present invention, at the bottom of it comprises polystyrene successivelyLayer, intermediate layer, superficial layer, be made up of following percetage by weight raw material in described intermediate layer:
Polystyrene resin 50%-80%;
Styrene-ethylene-butylene-styrene (SEBS) 8%-30%;
Carbon black 4%-25%;
Described superficial layer is made up of following percetage by weight raw material:
Wherein, be preferably made up of following percetage by weight raw material in described intermediate layer:
Polystyrene resin 60%-75%;
Styrene-ethylene-butylene-styrene 15%-25%;
Carbon black 10%-20%;
Described superficial layer is made up of following percetage by weight raw material:
As preferably, described blowing agent is that one or more in azo-compound, sulfohydrazide compound and citric acid are mixedCompound.
Described azo-compound is that Azodicarbonamide (abbreviation blowing agent AC), diisopropyl azodiformate (are called for short and send outInfusion DIPA), azodiisobutyronitrile (be called for short ABN or ABIN), azo and carboxylic acid barium.
Described sulfohydrazide compound is unifor (abbreviation foaming agent TSH), phenyl sulfohydrazide (being called for short BSH), right,To diphenyl sulfohydrazide acid (being called for short OBSH).
The Thickness Ratio of described polystyrene bottom, intermediate layer, superficial layer is 1-3:1-3:1-3.
As preferably, described superficial layer, bottom are coated on two sides, intermediate layer by co-extrusion respectively.
As preferably, intermediate layer is by putting into crowded by polystyrene resin, styrene-ethylene-butylene-styrene and carbon blackGo out machine, then extrude by head through calendering.
The preparation method of conductive foaming composite sheet of the present invention, comprises the steps:
1) first polystyrene resin, styrene-ethylene-butylene-styrene and carbon black are formed through extruder extrusion calendaringIntermediate layer;
2) then form superficial layer and polystyrene bottom at the upper and lower surface in intermediate layer through applying respectively.
Wherein, while forming described intermediate layer in step 1), the plasticization temperature 200-220 DEG C of extruder, die head temperature 150-180℃。
Step 2) in form the coated conditions of superficial layer and be: plasticization temperature is 200-220 DEG C, and application temperature is 160-180DEG C, foamed time is 15-30min.
The coated conditions that forms described polystyrene bottom is: plasticization temperature is 180-220 DEG C, and application temperature is 160-180℃。
A kind of conductive foaming composite sheet of the present invention, after testing, its density 0.5-0.8g/CM3, hot strength 22-27MPA, shore hardness 48-52, impact strength 18-22KJ/M2, elongation at break 390-410%; Its impact strength is high, surface is resistance toScraping and easily plastics sucking moulding, can be used for making electronic packaging vacuum formed box.
Detailed description of the invention
In one embodiment of the invention describe element and feature can with the unit shown in an embodimentElement and feature combine. It should be noted that for purposes of clarity, in explanation, omitted unrelated to the invention, this area is commonThe expression of parts known to the skilled or processing and description.
Polystyrene resin, styrene-ethylene-butylene-styrene and carbon black all can adopt commercially available former for sheet materialMaterial.
Embodiment 1:
A kind of conductive foaming composite sheet, it comprises polystyrene bottom, intermediate layer, superficial layer successively, described intermediate layerRaw material by following weight percentage is made:
Polystyrene resin (melt index 12g/10min) 65%;
Styrene-ethylene-butylene-styrene 20%;
Carbon black 15%;
Described superficial layer is made up of following raw material:
Wherein, Azodicarbonamide will be through the time foaming of 30 seconds as a kind of blowing agent.
The preparation method of conductive foaming composite sheet of the present invention, comprises the steps:
1) first polystyrene resin, styrene-ethylene-butylene-styrene and carbon black are formed through extruder extrusion calendaringIntermediate layer;
2) then form superficial layer and polystyrene bottom at the upper and lower surface in intermediate layer through applying respectively.
Wherein, while forming described intermediate layer in step 1), 200 DEG C of the plasticization temperatures of extruder, die head temperature 150-180℃。
Step 2) in form the coated conditions of superficial layer and be: plasticization temperature is 200 DEG C, and application temperature is 160 DEG C, when foamingBetween be 15min.
The coated conditions that forms described polystyrene bottom is: plasticization temperature is 180 DEG C, and application temperature is 160 DEG C.
Above-mentioned a kind of conductive foaming composite sheet, the Thickness Ratio of described polystyrene bottom, intermediate layer, superficial layer is 1:3：1。
Through test, a kind of its density of conductive foaming composite sheet 0.5g/CM3, hot strength 22MPA, hardness48shore, impact strength 18KJ/M2, elongation at break 390%; Then carry out sheet cutting and sacker according to conventional operationOrder.
Embodiment 2:
A kind of conductive foaming composite sheet, it comprises polystyrene bottom, intermediate layer, superficial layer successively, described intermediate layerRaw material by following weight percentage is made:
Polystyrene resin (melt index 12g/10min) 75%;
Styrene-ethylene-butylene-styrene 15%;
Carbon black 10%;
Described superficial layer is made up of following raw material:
Wherein, Azodicarbonamide will be through the time foaming of 30 seconds as a kind of blowing agent.
The preparation method of conductive foaming composite sheet of the present invention, comprises the steps:
1) first polystyrene resin, styrene-ethylene-butylene-styrene and carbon black are formed through extruder extrusion calendaringIntermediate layer;
2) then form superficial layer and polystyrene bottom at the upper and lower surface in intermediate layer through applying respectively.
Wherein, while forming described intermediate layer in step 1), 200 DEG C of the plasticization temperatures of extruder, 180 DEG C of die head temperatures.
Step 2) in form the coated conditions of superficial layer and be: plasticization temperature is 200 DEG C, and application temperature is 160 DEG C, when foamingBetween be 25min.
The coated conditions that forms described polystyrene bottom is: plasticization temperature is 180 DEG C, and application temperature is 160 DEG C.
Above-mentioned a kind of conductive foaming composite sheet, the Thickness Ratio of described polystyrene bottom, intermediate layer, superficial layer is 3:1：1。
Through test, a kind of its density of conductive foaming composite sheet 0.6g/CM3, hot strength 25MPA, hardness50shore, impact strength 19KJ/M2, elongation at break 400%; Then carry out sheet cutting and sacker according to conventional operationOrder.
Owing to having adopted a kind of sheet material for packing electronic component carrier band of above-mentioned technical scheme, composition and engineeringArrange according to the characteristic of the requirement of product and raw material completely, polystyrene resin is to meet mouldability and stable for materialProperty, blowing agent makes polystyrene resin have uniform micro foaming effect, thermoplastic elastic body styrene-ethene-butylene-benzene secondBe significantly improved impact strength and strengthen top layer scraping and wiping resistance performance of alkene (SEBS) tool. Carbon black can solve after sheet material plastics sucking mouldingBase angle printing opacity problem, makes sheet material obtain enough antistatic effects at top layer carbon black.
A kind of packing electronic component carrier band, adopts conductive foaming composite sheet to be made.
A kind of conductive foaming composite sheet of the present invention, high, the surperficial scratch-resistant of its impact strength and easily plastics sucking mouldingBe used for making packing electronic component carrier band.
Although described the present invention and advantage thereof in detail, be to be understood that and do not exceeding by appended claimIn the situation of the spirit and scope of the present invention that limit, can carry out various changes, substitute and conversion. And, the application's modelEnclose the specific embodiment that is not limited only to the described process of description, equipment, means, method and step. Common in this areaTechnical staff will readily appreciate that from disclosure of the present invention, can use carry out and corresponding reality described herein according to the present inventionExecute routine essentially identical function or obtain process, equipment result essentially identical with it, that existing and will be developed future,Means, method or step. Therefore, appended claim is intended to comprise such process, equipment, hand in their scopeSection, method or step.
Claims (7)
1. a conductive foaming composite sheet, is characterized in that: it comprises polystyrene bottom, intermediate layer, superficial layer successively, instituteStating intermediate layer is made up of following percetage by weight raw material:
Polystyrene resin 60%-75%;
Styrene-ethylene-butylene-styrene 15%-25%;
Carbon black 10%-20%;
Described superficial layer is made up of following percetage by weight raw material:
The Thickness Ratio of wherein said polystyrene bottom, intermediate layer, superficial layer is 1-3:1-3:1-3.
2. a kind of conductive foaming composite sheet according to claim 1, is characterized in that: described blowing agent is azo chemical combinationOne or more mixtures in thing, sulfohydrazide compound and citric acid.
3. a kind of conductive foaming composite sheet according to claim 1, is characterized in that: described azo-compound is azoDiformazan acid amide, diisopropyl azodiformate, azodiisobutyronitrile, barium azodicarboxylate.
4. a kind of conductive foaming composite sheet according to claim 1, is characterized in that: described sulfohydrazide compound is rightToluene sulfonyl hydrazide, phenyl sulfohydrazide, right, to the acid of diphenyl sulfohydrazide.
5. the method for a kind of conductive foaming composite sheet described in preparation claim 1-4 any one, is characterized in that: compriseFollowing steps:
1) first polystyrene resin, styrene-ethylene-butylene-styrene and carbon black are formed middle through extruder extrusion calendaringLayer;
2) then form superficial layer and polystyrene bottom at the upper and lower surface in intermediate layer through applying respectively.
6. the preparation method of a kind of conductive foaming composite sheet according to claim 5, is characterized in that: step 1) middle shapeWhile becoming described intermediate layer, the plasticization temperature 200-220 DEG C of extruder, die head temperature 150-180 DEG C;
Step 2) in form the coated conditions of superficial layer and be: plasticization temperature is 200-220 DEG C, and application temperature is 160-180 DEG C, sends outThe bubble time is 15-30min;
The coated conditions that forms described polystyrene bottom is: plasticization temperature is 180-220 DEG C, and application temperature is 160-180 DEG C.
A kind of conductive foaming composite sheet described in claim 1-4 any one for the preparation of electronic packaging vacuum formed box,Application in packing electronic component carrier band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410030281.5A CN103753916B (en) | 2014-01-22 | 2014-01-22 | A kind of conductive foaming composite sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410030281.5A CN103753916B (en) | 2014-01-22 | 2014-01-22 | A kind of conductive foaming composite sheet |
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| Publication Number | Publication Date |
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| CN103753916A CN103753916A (en) | 2014-04-30 |
| CN103753916B true CN103753916B (en) | 2016-05-18 |
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| CN201410030281.5A Active CN103753916B (en) | 2014-01-22 | 2014-01-22 | A kind of conductive foaming composite sheet |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475721A (en) * | 2009-01-13 | 2009-07-08 | 浙江三和塑料有限公司 | Antistatic plastic for SMT carrier band, and preparation and use thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10047043A1 (en) * | 2000-09-22 | 2002-04-11 | Wolff Walsrode Ag | Foil laminates as high barrier foils and their use in vacuum insulation panels |
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- 2014-01-22 CN CN201410030281.5A patent/CN103753916B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101475721A (en) * | 2009-01-13 | 2009-07-08 | 浙江三和塑料有限公司 | Antistatic plastic for SMT carrier band, and preparation and use thereof |
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| CN103753916A (en) | 2014-04-30 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A conductive foam composite sheet Effective date of registration: 20230626 Granted publication date: 20160518 Pledgee: Pujiang County Sub branch of Postal Savings Bank of China Co.,Ltd. Pledgor: PUJIANG YITONG PLASTIC ELECTRONIC Co.,Ltd. Registration number: Y2023980045567 |
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Address after: No. 1068, yidianhong Avenue, Pujiang County, Jinhua City, Zhejiang Province 322200 Patentee after: Zhejiang Yitong New Materials Technology Co.,Ltd. Country or region after: China Address before: No. 179, Jinlei Avenue, Pujiang County, Jinhua City, Zhejiang Province 322200 Patentee before: PUJIANG YITONG PLASTIC ELECTRONIC Co.,Ltd. Country or region before: China |
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