CN110551374A - high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and product thereof - Google Patents
high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and product thereof Download PDFInfo
- Publication number
- CN110551374A CN110551374A CN201810554944.1A CN201810554944A CN110551374A CN 110551374 A CN110551374 A CN 110551374A CN 201810554944 A CN201810554944 A CN 201810554944A CN 110551374 A CN110551374 A CN 110551374A
- Authority
- CN
- China
- Prior art keywords
- carbon nanotube
- conductive material
- retardant
- free flame
- parts
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/016—Additives defined by their aspect ratio
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Nanotechnology (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to the technical field of high polymer materials, in particular to a high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and a product thereof. The material comprises the following components in parts by weight: 93-98 parts of PC resin; 2-7 parts of coated carbon nanotubes. The product is produced by molding the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material. Compared with the prior art, the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material is prepared by using the coated carbon nanotube, and the influence on the physical properties of the material is avoided because no lubricant or flow modifier is adopted.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of high polymer materials, in particular to a high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and a product thereof.
[ background of the invention ]
The PC resin is also polycarbonate, and the conductive medium in the conductive plastic is usually carbon fiber, carbon black and carbon nano tube, the carbon nano tube has the largest specific surface area and the length-diameter ratio, the added parts are the least when the same conductive grade is achieved, the trend of replacing carbon fiber and conductive carbon black is existed at present, and the conductive plastic has wide development prospect. .
However, the L/D of the carbon nanotubes is more than 500, the specific surface area is large, the surface energy is large, the fluidity is reduced when the carbon nanotubes are added into the polymer, and the lubricating effect is reduced when an organic lubricant or a flow modifier is added into the formula and adsorbed by the carbon nanotubes. Because the carbon nano tube has large length-diameter ratio and large specific surface area, the prepared material has poor flowability.
In order to increase the fluidity of the material and improve the processability of the resin, low molecular weight substances such as lubricants and flow modifiers are generally added to the material, but both of these substances have a great influence on the physical properties of the material.
In view of the above, there is a need to develop a high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and a product thereof, so as to solve the problem of low fluidity of the carbon nanotube conductive material in the prior art.
[ summary of the invention ]
Therefore, the present invention aims to provide a high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material, such that the halogen-free flame-retardant PC carbon nanotube conductive material has high fluidity.
In order to achieve the above purpose, the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material of the present invention, expressed in parts by weight, comprises:
93-98 parts of PC resin;
2-7 parts of coated carbon nanotubes.
Optionally, the coated carbon nanotube is at least one of a single-walled carbon nanotube, a double-walled carbon nanotube, and a multi-walled carbon nanotube.
Optionally, the diameter of the single-walled carbon nanotube, the double-walled carbon nanotube or the multi-walled carbon nanotube is 0.7nm-7 nm.
Optionally, the coated carbon nanotubes with the diameter of 0.7nm-7nm account for at least 50% of the total amount of the coated carbon nanotubes in parts by weight.
Optionally, the aspect ratio L/D of the coated carbon nanotube is 500 or more.
Optionally, the coated carbon nanotube has an oil absorption value of 300ml/100g or more, a nitrogen adsorption BET specific surface area of 250m 2/g or more, and an iodine adsorption value of 400mg/g or more.
Optionally, the carbon nanotube dispersion for preparing the coated carbon nanotube consists of the carbon nanotube, a surfactant, water, and a coating monomer.
Optionally, the coating monomer is at least one of acrylic acid, methacrylic acid, maleic anhydride, itaconic acid, and glycidyl methacrylate.
Optionally, the surfactant in the carbon nanotube dispersion liquid is at least one of an ammonium salt surfactant, a pyridinium salt surfactant, a polyoxyethylene fatty acid ester surfactant and a polyethylene polyammonium salt surfactant.
Alternatively, the coating monomer is present in an amount of 5 to 50 parts by mass and the surfactant is present in an amount of 0.1 to 0.5 parts by mass, relative to 100 parts by mass of the carbon nanotube dispersion.
Optionally, the finished coated carbon nanotube is 300-800 parts by mass relative to 100 parts by mass of the raw material of the carbon nanotube.
In addition, the invention also provides a product which is produced after the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material is molded.
Compared with the prior art, the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material is prepared by using the coated carbon nanotube, and the influence on the physical properties of the material is avoided because no lubricant or flow modifier is adopted.
[ detailed description ] embodiments
The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material disclosed by the invention comprises the following components in parts by weight:
93-98 parts of PC resin, wherein the PC resin can be at least one of bisphenol A polycarbonate, polyester polycarbonate, organosilicon copolymer polycarbonate, cyclohexane bisphenol A polycarbonate, bisphenol A-organosiloxane copolymer polycarbonate and polycarbonate synthesized by bisphenol TMC, and the melt mass flow rate of the PC is 3-50g/10min at the temperature of 300 ℃ and the load of 1.2 Kg.
2-7 parts of coated carbon nanotubes, wherein the coated carbon nanotubes are at least one of single-wall carbon nanotubes, double-wall carbon nanotubes and multi-wall carbon nanotubes, the diameters of the single-wall carbon nanotubes, the double-wall carbon nanotubes and the multi-wall carbon nanotubes are 0.7-7 nm, the coated carbon nanotubes with the diameters of 0.7-7 nm at least account for 50% of the total amount of the coated carbon nanotubes in parts by weight, the length-diameter ratio L/D of the coated carbon nanotubes is more than 500, the oil absorption value of the coated carbon nanotubes is more than 300ml/100g, the nitrogen adsorption BET specific surface area is more than 250m 2/g, the iodine adsorption value is more than 400mg/g, a carbon nanotube dispersion liquid for preparing the coated carbon nanotubes is composed of carbon nanotubes, a surfactant, water and a coating monomer, the coating monomer is at least one of acrylic acid, methacrylic acid, maleic anhydride, itaconic acid and glycidyl methacrylate, the surfactant in the carbon nanotube dispersion liquid is ammonium salt surfactant, the pyridinium surfactant, the polyoxyethylene fatty acid ester salt is at least one of the coating monomer, and the ammonium salt surfactant is 0.5-100 parts of the coating monomer by mass of the carbon nanotubes, and the ammonium salt is more than 100 parts of the finished product of the ammonium salt surfactant, and the ammonium salt surfactant is 800 parts of the coating carbon nanotubes, and the finished product of the ammonium salt surfactant.
For further understanding of the objects, effects and technical means of the present invention, the following description is given with reference to the comparative examples and specific examples.
examples
97 parts of PC resin;
3 parts of coated carbon nano tubes.
Weighing the components in corresponding weight; then, stirring the components by using a single-shaft stirring barrel; and respectively adding the mixture into a double-screw extruder to perform melt extrusion granulation.
Comparative example
98.3 parts of PC resin;
3 parts of uncoated carbon nanotubes.
Weighing the components in corresponding weight; then, stirring the components by using a single-shaft stirring barrel; and respectively adding the mixture into a double-screw extruder to perform melt extrusion granulation.
After melt extrusion granulation of the above examples and comparative examples, the particles in each example were injection molded into standard test bars on an injection molding machine, and the mechanical properties of the resulting materials were tested according to the standard, with the test results shown in table 1:
Table 1: test results of examples and comparative examples
| Test items | test standard | examples | Comparative example |
| flow index (g/10min)300 ℃/1.2Kg | ISO 1133 | 20 | 10 |
| Surface resistance (Ohm) | IEC 60093 | 59.3 | 59.5 |
From the above, it can be seen that: compared with the comparative example, the mass flow rate MI of the melt can be improved by adding the coated carbon nano tubes into the material, and low molecular weight substances such as a lubricant, a flow modifier and the like are not added into the material, so that the physical properties of the material are prevented from being greatly influenced.
in addition, the invention also provides a product which is produced by molding the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material, and the product can be widely applied to electronic and electrical products, such as printers, computer CPU conductive parts and other fields.
Claims (12)
1. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material is characterized by comprising the following components in parts by weight:
93-98 parts of PC resin;
2-7 parts of coated carbon nanotubes.
2. the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 1, wherein the coated carbon nanotube is at least one of a single-walled carbon nanotube, a double-walled carbon nanotube and a multi-walled carbon nanotube.
3. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 2, wherein the diameters of the single-walled carbon nanotube, the double-walled carbon nanotube and the multi-walled carbon nanotube are 0.7nm to 7 nm.
4. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 1, wherein the coated carbon nanotubes with the diameter of 0.7nm to 7nm account for at least 50% of the total amount of the coated carbon nanotubes in parts by weight.
5. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 1, wherein the aspect ratio L/D of the coated carbon nanotube is more than 500.
6. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 1, wherein the coated carbon nanotube has an oil absorption value of 300ml/100g or more, a nitrogen adsorption BET specific surface area of 250m 2/g or more, and an iodine adsorption value of 400mg/g or more.
7. the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 1, wherein the carbon nanotube dispersion for preparing the coated carbon nanotube consists of carbon nanotubes, a surfactant, water and a coating monomer.
8. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 7, wherein the coating monomer is at least one of acrylic acid, methacrylic acid, maleic anhydride, itaconic acid and glycidyl methacrylate.
9. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 7, wherein the surfactant in the carbon nanotube dispersion is at least one of an ammonium salt surfactant, a pyridinium salt surfactant, a polyoxyethylene fatty acid ester surfactant and a polyethylene polyammonium salt surfactant.
10. The high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to claim 7, wherein the coating monomer is 5 to 50 parts by mass and the surfactant is 0.1 to 0.5 part by mass with respect to 100 parts by mass of the carbon nanotube dispersion.
11. The PC-CNT conductive material with high fluidity and halogen-free flame retardancy as claimed in claim 7, wherein the coating type carbon nanotube finished product is 300-800 parts by mass relative to 100 parts by mass of the raw material of the carbon nanotube.
12. A product produced by molding the high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material according to any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554944.1A CN110551374A (en) | 2018-06-01 | 2018-06-01 | high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810554944.1A CN110551374A (en) | 2018-06-01 | 2018-06-01 | high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and product thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110551374A true CN110551374A (en) | 2019-12-10 |
Family
ID=68733800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810554944.1A Pending CN110551374A (en) | 2018-06-01 | 2018-06-01 | high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110551374A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410455A (en) * | 2002-03-14 | 2003-04-16 | 四川大学 | Preparation method of polymer/carbon nano pipe composite emulsion and its in situ emulsion polymerization |
| CN102250460A (en) * | 2011-05-22 | 2011-11-23 | 迈士通集团有限公司 | Halogen-free inflaming-retarding conductive PC resin composition, and preparation method thereof |
| CN107722586A (en) * | 2016-08-11 | 2018-02-23 | 汉达精密电子(昆山)有限公司 | CNT polycarbafil/carbon fibre composite and its products formed |
| CN108025916A (en) * | 2016-01-07 | 2018-05-11 | 株式会社Lg化学 | Polymer-graphite alkene composite material, its preparation method and use its polymer-graphite alkene complex composition |
-
2018
- 2018-06-01 CN CN201810554944.1A patent/CN110551374A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1410455A (en) * | 2002-03-14 | 2003-04-16 | 四川大学 | Preparation method of polymer/carbon nano pipe composite emulsion and its in situ emulsion polymerization |
| CN102250460A (en) * | 2011-05-22 | 2011-11-23 | 迈士通集团有限公司 | Halogen-free inflaming-retarding conductive PC resin composition, and preparation method thereof |
| CN108025916A (en) * | 2016-01-07 | 2018-05-11 | 株式会社Lg化学 | Polymer-graphite alkene composite material, its preparation method and use its polymer-graphite alkene complex composition |
| CN107722586A (en) * | 2016-08-11 | 2018-02-23 | 汉达精密电子(昆山)有限公司 | CNT polycarbafil/carbon fibre composite and its products formed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6386114B2 (en) | Method for producing conductive resin composition | |
| EP3268415B1 (en) | Process for the preparation of composite articles having enhanced electrical properties | |
| CN104403175A (en) | Permanently anti-static polyolefin master batch and preparation method thereof | |
| CN106147185B (en) | Conductive polycarbonate basal granule material, its preparation method and the application of the carbon nanomaterial containing multidimensional | |
| CN112538219A (en) | Polypropylene composition and preparation method thereof | |
| US10290388B2 (en) | Conductive resin composition and plastic molded product using the same | |
| CN112409701B (en) | Low-density conductive polypropylene composition and preparation method and application thereof | |
| CN107868338A (en) | A kind of conductive polypropylene composite material and preparation method | |
| CN110423464A (en) | A kind of fascia PA6 composite material and preparation method | |
| CN108084627A (en) | HIPS base conductive agglomerates based on carbon nanotubes and graphene compound system and preparation method thereof | |
| CN108192218B (en) | Three-dimensional interpenetrating network structure conductive alloy material and preparation method thereof | |
| CN110551374A (en) | high-fluidity halogen-free flame-retardant PC carbon nanotube conductive material and product thereof | |
| CN110551380A (en) | High-performance halogen-free flame-retardant PC (polycarbonate) carbon nanotube conductive material and product thereof | |
| CN114736447B (en) | Antistatic foam and preparation method thereof | |
| CN107325395A (en) | A kind of polypropene composition and flame-retardant and anti-static tubing | |
| CN110551377A (en) | High-performance halogen-free flame-retardant PC/carbon nano tube conductive material and product thereof | |
| CN110551376A (en) | Polycarbonate/carbon nano tube conductive material and product thereof | |
| CN114573894A (en) | Carbon nano tube master batch and preparation method and application thereof | |
| CN112920586A (en) | Antistatic PC material and product thereof | |
| CN110551378A (en) | Halogen-free flame-retardant PC/carbon nano tube conductive material and product thereof | |
| CN111100453A (en) | Halogen-free flame-retardant PA antistatic material and product thereof | |
| CN110551381A (en) | High-flow flame-retardant PC/ABS carbon nanotube conductive material and product thereof | |
| CN112920587A (en) | Halogen-free flame-retardant antistatic PC material and product thereof | |
| CN114989640B (en) | Carbon nano tube modification method, conductive PA material and preparation method thereof | |
| CN112812531B (en) | Polycarbonate composite material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191210 |