CN102532882A - Conductive nylon plastic and preparation method thereof - Google Patents
Conductive nylon plastic and preparation method thereof Download PDFInfo
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- CN102532882A CN102532882A CN2012100027077A CN201210002707A CN102532882A CN 102532882 A CN102532882 A CN 102532882A CN 2012100027077 A CN2012100027077 A CN 2012100027077A CN 201210002707 A CN201210002707 A CN 201210002707A CN 102532882 A CN102532882 A CN 102532882A
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Abstract
The invention relates to conductive nylon plastic. The conductive nylon plastic comprises 65 to 90 percent of polymer carrier, 5 to 30 percent of conductive carbon black and 0.05 to 3 percent of modifier. A preparation method for the conductive nylon plastic comprises the following steps: preparing the materials according to the formula; mixing and forming by using a banbury mixer; and pelleting by using a double-screw extruder to prepare the conductive nylon plastic. Compared with the prior art, the conductive nylon plastic can be directly used without any processing acid, so the intermediate production link and production equipment can be reduced; the conductive nylon plastic is high in processing flowability and stable in production; conductivity is excellent and the conductive nylon plastic with the resistivity of 105 ohm . cm and below105 ohm . cm can be produced; mechanical and physical properties are excellent; and the product is manufactured by a banbury mixer and the double-screw extruder, so the production environment and the ambient environment are not polluted.
Description
Technical field
The present invention relates to the conductive plastics field, concrete, the present invention relates to conduct electricity nylon plastic and preparation method thereof.
Background technology
Conductive plastics is that resin and conducting material are mixed, and carries out function of processing type macromolecular material with the processing of plastic mode.Press the making method classification of conductive plastics, can be divided into structural conductive plastics and composite conductive plastic.The structural conductive plastics are claimed the intrinsically conducting plastics again, are meant the plastics that itself have electroconductibility or after chemical modification, have electroconductibility.The production cost of this family macromolecule material is high, technology difficulty is big; So far still there is not mass production; The conducting polymer composite of widespread use now generally all is the composite polymer material, and its filler mainly contains: metal dispersed system, carbon black system, organic complex dispersed system.
At present, the preparation conductive plastics generally is directly with graphitized carbon black or metal-powder etc. and plastic blend.For example, CN 101565542A discloses a kind of conductive MC nylon material and working method thereof, relates to the high pressure wire-crossing wheel in the electric power facility, or technical field such as RFI.May further comprise the steps: earlier nylon monomer is put into melt still hot melt, vacuum hydro-extraction then adds catalyzer, electrically conductive graphite more successively, carries out adding promotor after the vacuum hydro-extraction again, casting in mould, thermal treatment, carries out precision work again, forms finished product.The shortcoming of these class methods is: carbon black and metal-powder are difficult for adding; Disperse uneven; Destroy bigger to the matrix physical and mechanical properties; Production environment is polluted big.
In addition, CN 101870812A provides a kind of conduction nylon 66 material and preparation method thereof, and the weight percent of its each component is: nylon 6680%-95%; Carbon nanotube 1%-10%; Nano imvite 1%-15%; Compatible toughening agents 1%-10.5%; Oxidation inhibitor 0.3%-1%; Nucleator 0.3%-1%; Lubricant 0.3%-1%.Its preparation method is: elder generation is with carbon nanotube, nano imvite and account for the compatible toughening agents of gross weight 0.5%-3.75%, the nylon 66 material of 5%-20% mixes; With Banbury mixer or prepared in twin-screw extruder master batch; With master batch and remaining nylon 66 and compatible toughening agents and oxidation inhibitor, nucleator and mix lubricant, extrude then through twin screw extruder.But there is certain problem in this material at aspects such as elasticity, fatigue resistences.
Nylon (Nylon), the Chinese name polymeric amide, English name Polyamide (be called for short PA), be contain on the molecular backbone chain recurring amide radical group-[NHCO]-the thermoplastic resin general name.Its name is decided by the concrete carbonatoms of synthon, like: nylon-6,66,1010,610 etc.Wherein, nylon 6 has superior over-all properties, comprises physical strength, rigidity, toughness, mechanical shock absorption property and wear resistance.The research and development of conduction nylon 6 also are one of focuses of research and development at present.For example: CN 102108126A relates to a kind of preparation method of nylon 6 conductive micro-balloons; At first vinylbenzene carries out radical polymerization in the hexanolactam fused solution; Graphite oxide colloid suspension liquid joins in the above-mentioned hexanolactam mixed solution then, and hexanolactam original position anionic ring-opening polymerization is prepared into nylon monomer-cast nylon 6/ PS/graphite oxide trielement composite material, and above-mentioned matrix material is pulverized; Remove PS external phase with dissolution with solvents, obtain nylon 6 conductive micro-balloons.The conduction nylon 6 material conductivity that this method makes is better, but physical and mechanical properties is relatively poor, therefore has certain application limitation.
Therefore, existing conductive plastics has the lead performance or/and mechanical property is not ideal enough, has problems such as environmental pollution.
Summary of the invention
To the deficiency of prior art, one of the object of the invention is to provide a kind of conduction nylon plastic.Said conduction nylon plastic comprises by mass percentage:
Polymer support 65～90%
Graphitized carbon black 5～30%
Properties-correcting agent 0.05～3%.
Preferably, said conduction nylon plastic comprises by mass percentage:
Further preferred, said conduction nylon plastic comprises by mass percentage:
Preferred especially, said conduction nylon plastic comprises by mass percentage:
Said polymer support can also comprise other suitable polymers, PS etc. for example, and the those skilled in the art can select according to the expertise of its grasp.
Preferably, said nylon 6 is the extrusion grade polymeric amide, for example the B40L of German BASF or/and with the nylon 6 of the B40L ad eundem of German BASF.
Preferably, in the mixture of said Vilaterm and polycthylene grafted maleic anhydride, Vilaterm: the ratio of the quality of polycthylene grafted maleic anhydride is 3: 1～1: 3, further is preferably 2: 1～1: 2, is preferably 1: 1 especially.
Preferably, said Vilaterm is a linear polyethylene, is preferably LLDPE especially, for example China Petrochemical Industry 7042 or/and with the LLDPE of 7042 ad eundems.
Polycthylene grafted maleic anhydride is affiliated known material, can obtain or obtained according to prior art/new technology is synthetic by one of ordinary skill in the art through commercially available.
Preferably, said graphitized carbon black is that oil-absorption(number) (DBP) is the above graphitized carbon black of 150ml/100g, and further preferred oil-absorption(number) (DBP) is more than the 180ml/100g, and preferred especially oil-absorption(number) (DBP) is more than the 200ml/100g.
Preferably, said properties-correcting agent is coupling agent, is preferably titanate coupling agent especially.
Preferably, said processing aid comprises a kind or at least 2 kinds combination in polyethylene wax, Zinic stearas, the dispersion agent; The example of said dispersion agent has: water glass, tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 and trisodium phosphate, triethyl hexyl phosphoric acid, sodium lauryl sulphate, methyl amyl alcohol, derivatived cellulose, SEPIGEL 305, guar gum, fatty acid polyglycol ester etc.; Said combination typical case but the example of non-limit have: the combination of polyethylene wax, Zinic stearas, sodium lauryl sulphate; The combination of polyethylene wax, SEPIGEL 305; The combination of polyethylene wax, Zinic stearas, trisodium phosphate, methyl amyl alcohol, the combination of Zinic stearas, Sodium hexametaphosphate 99, guar gum etc.
Conduction nylon plastic according to the invention can also comprise other components, for example inhibitor, surface treatment agent, nucleator, compatible toughening agents, lubricant etc., and one of ordinary skill in the art can select according to the expertise of being grasped.
One of the object of the invention also is to provide a kind of preparation method of said conduction nylon plastic, and said method comprises: get the raw materials ready according to prescription, adopt Banbury mixer banburying moulding then, process the conduction nylon plastic with the twin screw extruder granulation again.
The required condition of said banburying and granulation is affiliated known technology, and one of ordinary skill in the art should confirm according to prior art.
Adopt the conduction nylon plastic carbon black dispersion of the method for the invention preparation even, and since less to matrix physical and mechanical properties destruction, the favorable mechanical physical and mechanical property therefore had.
Compared with prior art, the present invention has following characteristics:
(1) can directly use, can no longer add any processing aid, production link and production unit in the middle of can reducing;
(2) processing fluidity is good, produces steadily;
(3) excellent electric conductivity, but production resistivity is 10
5Ω cm and following conduction nylon plastic;
(4) the mechanical-physical mechanical property is excellent;
(5) adopt Banbury mixer and twin screw extruder manufacturing, pollution-free to production environment and surrounding environment.
Embodiment
For ease of understanding the present invention, it is following that the present invention enumerates embodiment.Those skilled in the art should understand, and said embodiment helps to understand the present invention, should not be regarded as concrete restriction of the present invention.
Embodiment 1
Prepare burden according to following prescription: nylon 6 (B40L of German BASF) 55g; Vilaterm (China Petrochemical Industry 7042) 2.5g, polycthylene grafted maleic anhydride (the friendly auxiliary agent chemical industry in Nanjing Ltd) 7.5g, oil-absorption(number) (DBP) are graphitized carbon black (hundred million rich auspicious (Tianjin) chemical industry ltds) 30g of 150ml/100g; Titanate coupling agent (TM-12 of chemical industry ltd is raised in the sky, Yizheng) 3g; Polyethylene wax (Chengdu is contained and risen development in science and technology ltd) 1g, Zinic stearas (the prosperous chemical industry of Gaomi City's friendship ltd) 0.5g, Sodium hexametaphosphate 99 0.5g; Adopt Banbury mixer banburying moulding, process conduction nylon plastic 1 again with the twin screw extruder granulation.
Embodiment 2
Prepare burden according to following prescription: nylon 6 (B40L of German BASF) 80g; Vilaterm (China Petrochemical Industry 7042) 7.5g, polycthylene grafted maleic anhydride (the friendly auxiliary agent chemical industry in Nanjing Ltd) 2.5g, oil-absorption(number) (DBP) are graphitized carbon black (hundred million rich auspicious (Tianjin) chemical industry ltds) 5g of 200ml/100g; Titanate coupling agent (TM-12 of chemical industry ltd is raised in the sky, Yizheng) 0.05g; Polyethylene wax (Chengdu is contained and risen development in science and technology ltd) 3g, sodium lauryl sulphate 1g, oxidation inhibitor N; N '-two-(3-(3; The 5-di-tert-butyl-hydroxy phenyl) hexanediamine (Milan, Nanjing chemical industry ltd) 0.95g propionyl group) adopts Banbury mixer banburying moulding, processes conduction nylon plastic 2 again with the twin screw extruder granulation.
Embodiment 3
Prepare burden according to following prescription: nylon 6 (B40L of German BASF) 60g; Vilaterm (China Petrochemical Industry 7042) 7g; Polycthylene grafted maleic anhydride (the friendly auxiliary agent chemical industry in Nanjing Ltd) 13g, oil-absorption(number) (DBP) are graphitized carbon black (hundred million rich auspicious (Tianjin) chemical industry ltds) 15g of 200ml/100g, titanate coupling agent (TM-12 of chemical industry ltd is raised in the sky, Yizheng) 1g; Polyethylene wax (Chengdu is contained and risen development in science and technology ltd) 3g; Zinic stearas (the prosperous chemical industry of Gaomi City's friendship ltd) 1g adopts Banbury mixer banburying moulding, processes conduction nylon plastic 3 again with the twin screw extruder granulation.
Embodiment 4
Prepare burden according to following prescription: nylon 6 (B40L of German BASF) 67g; Vilaterm (China Petrochemical Industry 7042) 2g, polycthylene grafted maleic anhydride (the friendly auxiliary agent chemical industry in Nanjing Ltd) 1g, oil-absorption(number) (DBP) are graphitized carbon black (hundred million rich auspicious (Tianjin) chemical industry ltds) 20g of 180ml/100g; Titanate coupling agent (TM-12 of chemical industry ltd is raised in the sky, Yizheng) 2g; Polyethylene wax (Chengdu is contained and risen development in science and technology ltd) 4g, Zinic stearas (the prosperous chemical industry of Gaomi City's friendship ltd) 1g, tripoly phosphate sodium STPP 3g; Adopt Banbury mixer banburying moulding, process conduction nylon plastic 4 again with the twin screw extruder granulation.
Embodiment 5
Prepare burden according to following prescription: nylon 6 (B40L of German BASF) 80g; Vilaterm (China Petrochemical Industry 7042) 2g; Polycthylene grafted maleic anhydride (the friendly auxiliary agent chemical industry in Nanjing Ltd) 3g; Oil-absorption(number) (DBP) is graphitized carbon black (hundred million rich auspicious (Tianjin) chemical industry ltds) 10g of 210ml/100g, titanate coupling agent (TM-12 of chemical industry ltd is raised in the sky, Yizheng) 2g, Zinic stearas (the prosperous chemical industry of Gaomi City's friendship ltd) 3g; Adopt Banbury mixer banburying moulding, process conduction nylon plastic 5 again with the twin screw extruder granulation.
The prepared conduction nylon plastic of embodiment 1-5 is tested, and the result is following:
| Parameter | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 |
| Tensile strength (MPa) | ?40 | ?60 | ?45 | ?50 | ?61 |
| Flexural strength (MPa) | ?62 | ?80 | ?60 | ?55 | ?85 |
| Modulus in flexure (MPa) | ?2450 | ?3500 | ?2780 | ?2800 | ?3600 |
| Notched Izod impact strength (kJ/m 2) | ?15 | ?5 | ?10 | ?8 | ?5 |
| Specific conductivity (Ω cm) | ?10 3 | ?10 9 | ?10 5 | ?10 4 | ?10 6 |
Can know that by above experimental data conduction nylon material according to the invention has excellent physical and mechanical performance, simultaneously excellent electric conductivity.
Applicant's statement; The present invention explains detailed process equipment of the present invention and technical process through the foregoing description; But the present invention is not limited to above-mentioned detailed process equipment and technical process, does not mean that promptly the present invention must rely on above-mentioned detailed process equipment and technical process could be implemented.The person of ordinary skill in the field should understand, and to any improvement of the present invention, to the interpolation of the equivalence replacement of each raw material of product of the present invention and ancillary component, the selection of concrete mode etc., all drops within protection scope of the present invention and the open scope.
Claims (10)
1. conduction nylon plastic comprises by mass percentage:
Polymer support 65～90%
Graphitized carbon black 5～30%
Properties-correcting agent 0.05～3%.
2. conduction nylon plastic as claimed in claim 1 is characterized in that, said conduction nylon plastic comprises by mass percentage:
3. according to claim 1 or claim 2 conduction nylon plastic is characterized in that said conduction nylon plastic comprises by mass percentage:
4. like each described conduction nylon plastic of claim 1-3, it is characterized in that said conduction nylon plastic comprises by mass percentage:
5. like each described conduction nylon plastic of claim 1-4, it is characterized in that said nylon 6 is preferably the extrusion grade polymeric amide, for example the B40L of German BASF or/and with the nylon 6 of the B40L ad eundem of German BASF.
6. like each described conduction nylon plastic of claim 1-4; It is characterized in that; In the mixture of said Vilaterm and polycthylene grafted maleic anhydride; Vilaterm: the ratio of the quality of polycthylene grafted maleic anhydride is preferably 3: 1～and 1: 3, further be preferably 2: 1～1: 2, be preferably 1: 1 especially;
Preferably, said Vilaterm is a linear polyethylene, is preferably LLDPE especially, and for example China Petrochemical Industry 7042 is or/and the LLDPE of ad eundem.
7. like each described conduction nylon plastic of claim 1-4; It is characterized in that; Said graphitized carbon black is preferably oil-absorption(number) (DBP) and is the above graphitized carbon black of 150ml/100g; Further preferred oil-absorption(number) (DBP) is more than the 180ml/100g, and preferred especially oil-absorption(number) (DBP) is more than the 200ml/100g.
8. like each described conduction nylon plastic of claim 1-4, it is characterized in that said properties-correcting agent is preferably coupling agent, be preferably titanate coupling agent especially.
9. like each described conduction nylon plastic of claim 1-4, it is characterized in that said processing aid comprises a kind or at least 2 kinds combination in polyethylene wax, Zinic stearas, the dispersion agent.
10. like the preparation method of each described conduction nylon plastic of claim 1-9, it is characterized in that said method comprises: get the raw materials ready according to prescription, adopt Banbury mixer banburying moulding then, process the conduction nylon plastic with the twin screw extruder granulation again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002707.7A CN102532882B (en) | 2012-01-05 | 2012-01-05 | Conductive nylon plastic and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210002707.7A CN102532882B (en) | 2012-01-05 | 2012-01-05 | Conductive nylon plastic and preparation method thereof |
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| CN102532882A true CN102532882A (en) | 2012-07-04 |
| CN102532882B CN102532882B (en) | 2014-01-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694412A (en) * | 2012-08-20 | 2016-06-22 | 冯林 | Conducting engineering plastic |
| CN107674364A (en) * | 2017-08-24 | 2018-02-09 | 厦门建霖健康家居股份有限公司 | A kind of plastic material, plastic material preparation method and semidry method electroplating technology |
| CN107904740A (en) * | 2017-12-19 | 2018-04-13 | 江阴市强力化纤有限公司 | A kind of dipped type cord fabric destatics braid over braid and its production method |
| CN108193304A (en) * | 2017-12-19 | 2018-06-22 | 江阴市强力化纤有限公司 | A kind of 6 silk thread of static conductive nylon and its production method |
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| CN1255512A (en) * | 1998-11-27 | 2000-06-07 | 德古萨－希尔斯股份公司 | Products having anti-static function |
| CN101230163A (en) * | 2008-02-19 | 2008-07-30 | 陆校会 | Absorbent masterbatch and production method thereof |
| CN101312824A (en) * | 2005-10-18 | 2008-11-26 | 阿克马法国公司 | Polyamide-based antistatic multilayer tube for transferring fluids |
| CN101407632A (en) * | 2008-11-14 | 2009-04-15 | 佛山市顺德区高怡新塑料有限公司 | Conductive and antistatic nylon |
| CN102260406A (en) * | 2011-07-05 | 2011-11-30 | 南京理工大学 | Methyl cellulose (MC) nylon nano conductive composite material and preparation method thereof |
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2012
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1255512A (en) * | 1998-11-27 | 2000-06-07 | 德古萨－希尔斯股份公司 | Products having anti-static function |
| CN101312824A (en) * | 2005-10-18 | 2008-11-26 | 阿克马法国公司 | Polyamide-based antistatic multilayer tube for transferring fluids |
| CN101230163A (en) * | 2008-02-19 | 2008-07-30 | 陆校会 | Absorbent masterbatch and production method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105694412A (en) * | 2012-08-20 | 2016-06-22 | 冯林 | Conducting engineering plastic |
| CN107674364A (en) * | 2017-08-24 | 2018-02-09 | 厦门建霖健康家居股份有限公司 | A kind of plastic material, plastic material preparation method and semidry method electroplating technology |
| CN107904740A (en) * | 2017-12-19 | 2018-04-13 | 江阴市强力化纤有限公司 | A kind of dipped type cord fabric destatics braid over braid and its production method |
| CN108193304A (en) * | 2017-12-19 | 2018-06-22 | 江阴市强力化纤有限公司 | A kind of 6 silk thread of static conductive nylon and its production method |
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| CN102532882B (en) | 2014-01-01 |
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