CN113845765A - High-performance halogen-free flame-retardant PC/CNT conductive material and product thereof - Google Patents
High-performance halogen-free flame-retardant PC/CNT conductive material and product thereof Download PDFInfo
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- C08L2201/22—Halogen free composition
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- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Abstract
The invention relates to the technical field of high polymer materials, and particularly discloses a high-performance halogen-free flame-retardant PC/CNT conductive material and a product thereof. Every 100 parts by mass of a finished product of the high-performance halogen-free flame-retardant PC/CNT conductive material comprises the following components in parts by mass: 20-90 parts of polycarbonate; 3-7 parts of carbon nano tubes; 6.5-14 parts of a flame retardant. By using the high-performance halogen-free flame-retardant PC/CNT conductive material and the product thereof, the carbon nano tube is used as a conductive medium, so that the conductive material not only obtains better antistatic performance and flame retardant grade of 1.0mmV-0, but also retains more than 50 percent of self better physical characteristics, and the obtained product has better antistatic performance, flame retardant property and impact resistance.
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-performance halogen-free flame-retardant PC/CNT conductive material and a product thereof.
[ background of the invention ]
Polycarbonate (PC) is a high molecular polymer containing carbonate groups in its molecular chain, and is classified into various types such as aliphatic, aromatic, aliphatic-aromatic, and the like, depending on the structure of the ester groups. Among them, aliphatic and aliphatic-aromatic polycarbonates have limited their use as engineering plastics due to their low mechanical properties.
The Carbon Nano Tube (CNT) is used as a one-dimensional nano material, is light in weight, has perfect connection of a hexagonal structure, and has a plurality of abnormal mechanical, electrical and chemical properties. In recent years, the extensive application prospect of the carbon nano-tube and the nano-material is continuously shown along with the research of the carbon nano-tube and the nano-material.
In the PC-based carbon nanotube conductive material, the length-diameter ratio and the specific surface area of the carbon nanotube are large, and 3.5-7 parts by mass of the carbon nanotube is added into every 100 parts by mass of a conductive material finished product to achieve the effect of 10 & lt3 & gt Ohm-10 & lt4 & gt Ohm.
In view of the above, there is a need to provide a high-performance halogen-free flame-retardant PC/CNT conductive material and a product thereof, so as to solve the problems that the performance of the conductive material is reduced, the flame retardant level of 1.0mmV-0 cannot be achieved, and the physical properties of the conductive material are reduced due to the wick effect of the carbon nanotubes and the addition of a large amount of phosphate ester flame retardant.
[ summary of the invention ]
The invention aims to provide a high-performance halogen-free flame-retardant PC/CNT conductive material and a product thereof, and aims to solve the problems that the performance of the conductive material is reduced, the flame-retardant grade of 1.0mmV-0 cannot be achieved and the physical properties of the conductive material are reduced due to the wick effect of a carbon nano tube and the addition of more phosphate ester flame retardant.
In order to achieve the purpose, the invention provides a high-performance halogen-free flame-retardant PC/CNT conductive material, wherein each 100 parts by mass of a finished conductive material product comprises the following components in parts by mass:
20-90 parts of polycarbonate;
3-7 parts of carbon nano tubes; and
6.5-14 parts of a flame retardant.
Optionally, the polycarbonate is a compound of two or more of bisphenol a polycarbonate, polyester polycarbonate, silicone copolymer PC, cyclohexane bisphenol a polycarbonate, bisphenol a-organosiloxane copolymer polycarbonate, and high-temperature resistant polycarbonate synthesized by bisphenol TMC.
Optionally, the polycarbonate has a melt mass flow rate of between 3g/10min and 50g/10min at a temperature of 300 ℃ and a load of 1.2 Kg.
Optionally, the carbon nanotube is one or more of a single-walled carbon nanotube, a double-walled carbon nanotube and a multi-walled carbon nanotube.
Optionally, the diameter of the carbon nanotube is between 0.7nm and 7nm, the mass fraction of the carbon nanotube with the diameter of between 0.7nm and 7.0nm accounts for more than 50% of the total mass of the carbon nanotube, the aspect ratio of the carbon nanotube is more than 500, the oil absorption value is more than 300ml/100g, the nitrogen adsorption specific surface area is more than 250m2/g, and the iodine adsorption value is more than 400 mg/g.
Optionally, in the high-performance halogen-free flame-retardant PC/CNT conductive material, the conductive medium is composed of carbon nanotubes, 3.5 to 7 parts by mass of carbon nanotubes are added to every 100 parts by mass of the finished conductive material, and the surface resistance of the conductive material can be lowered to 10 ^ 3Ohm to 10 ^ 5 Ohm.
Optionally, the flame retardant is a complex formulation of two or more of hypophosphite flame retardant, an organic silicon flame retardant and phenoxyl cyclophosphazene.
Optionally, the hypophosphite flame retardant is a vinyl aluminum hypophosphite flame retardant, and the organosilicon flame retardant is one or more of a compound of a flame retardant of polysilazane and its derivatives, a flame retardant of polymethoxyphenyl silane and its derivatives, hydroxymethyl silane and its derivatives, and a flame retardant of cross-linked Polydimethylsiloxane (PDMS) and its derivatives.
Optionally, the phosphazene structure is phenoxy cyclophosphazene, the phosphorus content of the phenoxy cyclophosphazene is greater than 13%, the nitrogen content of the phenoxy cyclophosphazene is greater than 5.8%, the concentration of the hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the phenoxy cyclophosphazene is greater than 98.5%.
Optionally, when the conductive material finished product contains 3 parts by mass of hypophosphite flame retardant, 1% of hydroxyphenyl silane flame retardant and 6% of BDP flame retardant, the flame retardant grade of the conductive material is 1.6 mmV-0.
Optionally, 0.5-1 part of anti-dripping agent is added into every 100 parts by mass of the conductive material finished product.
The invention also provides a product prepared from the high-performance halogen-free flame-retardant PC/CNT conductive material.
Compared with the prior art, the high-performance halogen-free flame-retardant PC/CNT conductive material and the product thereof, by adding a certain proportion of polycarbonate and carbon nano tube as a conductive medium into the conductive material, through adding hypophosphite flame retardant, phenoxyl cyclophosphazene and organosilicon flame retardant for compounding, the adding part of the total flame retardant is reduced to below 10 percent, the influence of the flame retardant on the physical properties of the conductive material is reduced to the minimum, the high-performance halogen-free flame-retardant PC/CNT conductive material and the product thereof are utilized, and the carbon nano tube is used as a conductive medium, so that the conductive material has good antistatic performance and flame-retardant grade of 1.0mmV-0, the good physical properties of more than 50 percent of the conductive material are kept, and the obtained product has good antistatic performance, flame-retardant property and impact resistance.
[ detailed description ] embodiments
The invention provides a high-performance halogen-free flame-retardant PC/CNT conductive material, wherein each 100 parts by mass of a conductive material finished product comprises the following components in parts by mass:
20-90 parts of polycarbonate;
3-7 parts of carbon nano tubes; and
6.5-14 parts of a flame retardant.
Wherein the polycarbonate is a compound of two or more of bisphenol A polycarbonate, polyester polycarbonate, organosilicon copolymerization PC, cyclohexane bisphenol A polycarbonate, bisphenol A-organosiloxane copolymerization polycarbonate and high-temperature resistant polycarbonate synthesized by bisphenol TMC.
Wherein, under the conditions of the temperature of 300 ℃ and the load of 1.2Kg, the melt mass flow rate of the polycarbonate is between 3g/10min and 50g/10 min.
Wherein, the carbon nano tube is one or more than one of single-wall carbon nano tube, double-wall carbon nano tube and multi-wall carbon nano tube.
The diameter of the carbon nano tube is between 0.7nm and 7nm, the mass fraction of the carbon nano tube with the diameter of between 0.7nm and 7.0nm accounts for more than 50 percent of the mass of the total carbon nano tube, the length-diameter ratio of the carbon nano tube is more than 500, the oil absorption value is more than 300ml/100g, the nitrogen adsorption specific surface area is more than 250m2/g, and the iodine adsorption value is more than 400 mg/g.
In the high-performance halogen-free flame-retardant PC/CNT conductive material, a conductive medium is composed of carbon nano tubes, 3.5-7 parts by mass of the carbon nano tubes are added in every 100 parts by mass of a finished conductive material product, and the surface resistance of the conductive material can be reduced to 10 & lt3 Ohm-10 & lt5 Ohm.
Wherein the flame retardant is a complex formulation of two or more of hypophosphite flame retardant, organosilicon flame retardant and phenoxyl cyclophosphazene.
The hypophosphite flame retardant is vinyl aluminium hypophosphite flame retardant, and the organosilicon flame retardant is one or more of a compound of a flame retardant of polysilazane and derivatives thereof, a flame retardant of polymethoxyphenyl silane and derivatives thereof, hydroxymethyl silane and derivatives thereof, and a flame retardant of cross-linked Polydimethylsiloxane (PDMS) and derivatives thereof.
The phosphazene structure is phenoxy cyclophosphazene, the phosphorus content of the phenoxy cyclophosphazene is more than 13%, the nitrogen content of the phenoxy cyclophosphazene is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the phenoxy cyclophosphazene is more than 98.5%.
Wherein, when the conductive material finished product contains 3 parts by mass of hypophosphite flame retardant, 1% of hydroxyphenyl silane flame retardant and 6% of BDP flame retardant, the flame retardant grade of the conductive material is 1.6 mmV-0.
Wherein 0.5-1 part of anti-dripping agent is added into every 100 parts by mass of the conductive material finished product.
The invention also provides a product prepared from the high-performance halogen-free flame-retardant PC/CNT conductive material. The conductive material has the characteristics of thermal shrinkage and flame retardance and anti-dripping effect by adding a proper amount of anti-dripping agent in the preparation process, and the conductive material has good antistatic performance, flame retardance and impact resistance by adding a certain proportion of polycarbonate and carbon nano tubes and adding a hypophosphite flame retardant, phenoxy cyclophosphazene and an organosilicon flame retardant for compounding.
The technical solution of the present invention is further explained by the following embodiments.
Example 1
Every 100 parts by mass of a finished conductive material product comprises 86 parts of polycarbonate, 2 parts of vinyl aluminum hypophosphite, 7 parts of phenoxy cyclophosphazene, 1 part of hydroxyphenyl silane, 3.5 parts of carbon nano tube and 0.5 part of anti-dripping agent. Wherein, the polycarbonate is a compound of two or more of bisphenol A polycarbonate, polyester polycarbonate, organosilicon copolymerization PC, cyclohexane bisphenol A polycarbonate, bisphenol A-organosiloxane copolymerization polycarbonate and high temperature resistant polycarbonate synthesized by bisphenol TMC, the melt mass flow rate of the polycarbonate is between 3g/10min and 50g/10min under the conditions of 300 ℃ and 1.2Kg of load, the carbon nanotube is a compound of one or more of single-wall carbon nanotube, double-wall carbon nanotube and multi-wall carbon nanotube, the diameter of the carbon nanotube is between 0.7nm and 7nm, the mass fraction of the carbon nanotube with the diameter of 0.7nm to 7.0nm accounts for more than 50 percent of the mass of the total carbon nanotube, the length-diameter ratio of the carbon nanotube is more than 500, the oil absorption value is more than 300ml/100g, the nitrogen adsorption specific surface area is more than 250m2/g and the iodine adsorption value is more than 400mg/g, the conductive medium is composed of carbon nanotubes, 3.5-7 parts by mass of the carbon nanotubes are added in every 100 parts by mass of the conductive material finished product, the surface resistance of the conductive material can be reduced to 10-3 Ohm-10-5 Ohm, the flame retardant is a complex of two or more of hypophosphite flame retardant, organosilicon flame retardant and phenoxycyclophosphazene, the hypophosphite flame retardant is a vinyl aluminium hypophosphite flame retardant, the organosilicon flame retardant is one or more of a flame retardant of polysilazane and derivatives thereof, polymethoxyphenylsilane and derivatives thereof, hydroxymethyl silane and derivatives thereof, cross-linked Polydimethylsiloxane (PDMS) and derivatives thereof, the phosphazene structure is phenoxycyclophosphazene, the phosphorus content of the phenoxycyclophosphazene is more than 13%, the nitrogen content is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the phenoxycyclophosphazene is more than 98.5%. When 3 parts by mass of hypophosphite flame retardant, 1% of hydroxyphenyl silane flame retardant and 6% of BDP flame retardant are contained in each 100 parts by mass of the finished conductive material, the flame retardant rating of the conductive material is 1.6 mmV-0.
Weighing the components with the corresponding weight, uniformly stirring the components, and adding the components into a double-screw extruder for melt extrusion granulation.
Comparative example 1
Every 100 parts by mass of a finished conductive material product comprises 80 parts of polycarbonate, 2 parts of vinyl aluminum hypophosphite, 13 parts of phosphate flame retardant (BDP), 1 part of hydroxyphenyl silane, 3.5 parts of carbon nano tube and 0.5 part of anti-dripping agent. Wherein, the polycarbonate is a compound of two or more of bisphenol A polycarbonate, polyester polycarbonate, organosilicon copolymerization PC, cyclohexane bisphenol A polycarbonate, bisphenol A-organosiloxane copolymerization polycarbonate and high temperature resistant polycarbonate synthesized by bisphenol TMC, the melt mass flow rate of the polycarbonate is between 3g/10min and 50g/10min under the conditions of 300 ℃ and 1.2Kg of load, the carbon nanotube is a compound of one or more of single-wall carbon nanotube, double-wall carbon nanotube and multi-wall carbon nanotube, the diameter of the carbon nanotube is between 0.7nm and 7nm, the mass fraction of the carbon nanotube with the diameter of 0.7nm to 7.0nm accounts for more than 50 percent of the mass of the total carbon nanotube, the length-diameter ratio of the carbon nanotube is more than 500, the oil absorption value is more than 300ml/100g, the nitrogen adsorption specific surface area is more than 250m2/g and the iodine adsorption value is more than 400mg/g, the conductive medium is composed of carbon nanotubes, 3.5-7 parts by mass of the carbon nanotubes are added in every 100 parts by mass of the conductive material finished product, the surface resistance of the conductive material can be reduced to 10-3 Ohm-10-5 Ohm, the flame retardant is a complex of two or more of hypophosphite flame retardant, organosilicon flame retardant and phenoxycyclophosphazene, the hypophosphite flame retardant is a vinyl aluminium hypophosphite flame retardant, the organosilicon flame retardant is one or more of a flame retardant of polysilazane and derivatives thereof, polymethoxyphenylsilane and derivatives thereof, hydroxymethyl silane and derivatives thereof, cross-linked Polydimethylsiloxane (PDMS) and derivatives thereof, the phosphazene structure is phenoxycyclophosphazene, the phosphorus content of the phenoxycyclophosphazene is more than 13%, the nitrogen content is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the phenoxycyclophosphazene is more than 98.5%. When 3 parts by mass of hypophosphite flame retardant, 1% of hydroxyphenyl silane flame retardant and 6% of BDP flame retardant are contained in each 100 parts by mass of the finished conductive material, the flame retardant rating of the conductive material is 1.6 mmV-0.
Weighing the components with the corresponding weight, uniformly stirring the components, and adding the components into a double-screw extruder for melt extrusion granulation.
After the high-performance halogen-free flame-retardant PC/CNT conductive material of the above examples and comparative examples is melt extruded and pelletized, the particles of the examples and comparative examples are injection molded on an injection molding machine to form standard test sample strips, and the mechanical properties of the obtained material are tested according to the standard, and the test results are shown in Table 1:
TABLE 1 test results
Comparing the above example 1 with the comparative example 1, it can be seen that, when polycarbonate, carbon nanotubes and anti-dripping agent are added in a certain proportion in the preparation of the high performance halogen-free flame retardant PC/CNT conductive material, although a proper amount of vinyl aluminum hypophosphite and hydroxyphenyl silane are added in the flame retardant of the comparative example 1, the phenoxy cyclic phosphazene is not added for compounding, so that the conductive material does not reach the flame retardant level of 1.0mmV-0, and the conditions of two or more than two kinds of hypophosphite flame retardant, organosilicon flame retardant and phenoxy cyclic phosphazene are not met, therefore, a certain proportion of polycarbonate, carbon nanotubes and anti-dripping agent are added in the preparation of the high performance halogen-free flame retardant PC/CNT conductive material in the example 1, and vinyl aluminum hypophosphite, phenoxy cyclic phosphazene and hydroxyphenyl silane which are compounded as flame retardant are added, the carbon nano tube is used as a conductive medium, so that the conductive material has good antistatic performance, the flame retardant grade reaches 1.0mmV-0, and the good physical properties of more than 50 percent of the conductive material are kept.
Compared with the prior art, the high-performance halogen-free flame-retardant PC/CNT conductive material and the product thereof, by adding a certain proportion of polycarbonate and carbon nano tube as a conductive medium into the conductive material, through adding hypophosphite flame retardant, phenoxyl cyclophosphazene and organosilicon flame retardant for compounding, the adding part of the total flame retardant is reduced to below 10 percent, the influence of the flame retardant on the physical properties of the conductive material is reduced to the minimum, the high-performance halogen-free flame-retardant PC/CNT conductive material and the product thereof are utilized, and the carbon nano tube is used as a conductive medium, so that the conductive material has good antistatic performance and flame-retardant grade of 1.0mmV-0, the good physical properties of more than 50 percent of the conductive material are kept, and the obtained product has good antistatic performance, flame-retardant property and impact resistance.
The technical principles of the present invention have been described above in connection with specific embodiments, which are intended to explain the principles of the present invention and should not be construed as limiting the scope of the present invention in any way. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (12)
1. The high-performance halogen-free flame-retardant PC/CNT conductive material is characterized in that each 100 parts by mass of a finished conductive material product comprises the following components in parts by mass:
20-90 parts of polycarbonate;
3-7 parts of carbon nano tubes; and
6.5-14 parts of a flame retardant.
2. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the polycarbonate is a compound of two or more of bisphenol A polycarbonate, polyester polycarbonate, silicone copolymer PC, cyclohexane bisphenol A polycarbonate, bisphenol A-organosiloxane copolymer polycarbonate, and high-temperature resistant polycarbonate synthesized by bisphenol TMC.
3. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the polycarbonate has a melt mass flow rate of 3g/10min to 50g/10min at a temperature of 300 ℃ and a load of 1.2 Kg.
4. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the carbon nanotube is one or more of a single-walled carbon nanotube, a double-walled carbon nanotube and a multi-walled carbon nanotube.
5. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the diameter of the carbon nanotube is 0.7 nm-7 nm, the mass fraction of the carbon nanotube with the diameter of 0.7 nm-7.0 nm accounts for more than 50% of the total mass of the carbon nanotube, the aspect ratio of the carbon nanotube is more than 500, the oil absorption value is more than 300ml/100g, the nitrogen adsorption specific surface area is more than 250m2/g, and the iodine adsorption value is more than 400 mg/g.
6. The high-performance halogen-free flame-retardant PC/CNT conductive material as claimed in claim 1, wherein the conductive medium in the high-performance halogen-free flame-retardant PC/CNT conductive material comprises carbon nanotubes, 3.5-7 parts by mass of the carbon nanotubes are added per 100 parts by mass of the finished product of the conductive material, and the surface resistance of the conductive material can be lowered to 10 ^ 3 Ohm-10 ^ 5 Ohm.
7. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the flame retardant is a combination of two or more of hypophosphite flame retardant, organosilicon flame retardant and phenoxyl cyclophosphazene.
8. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 7, wherein the hypophosphite flame retardant is vinyl aluminum hypophosphite flame retardant, and the organosilicon flame retardant is one or more of a flame retardant comprising polysilazane and its derivatives, polymethoxyphenylsilane and its derivatives, hydroxymethylsilane and its derivatives, and a flame retardant comprising cross-linked Polydimethylsiloxane (PDMS) and its derivatives.
9. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the phosphazene structure is phenoxy cyclophosphazene, the phosphorus content of the phenoxy cyclophosphazene is more than 13%, the nitrogen content of the phenoxy cyclophosphazene is more than 5.8%, the concentration of hetero ions is less than 0.01%, the weight average molecular weight is 693, and the purity of the phenoxy cyclophosphazene is more than 98.5%.
10. The high-performance halogen-free flame-retardant PC/CNT conductive material of claim 1, wherein the conductive material has a flame retardant rating of 1.6mmV-0 when comprising 3 parts by mass of hypophosphite flame retardant, 1% of hydroxyphenyl silane flame retardant and 6% of BDP flame retardant per 100 parts by mass of the final conductive material.
11. The high-performance halogen-free flame-retardant PC/CNT conductive material as claimed in claim 1, wherein 0.5-1 part of anti-dripping agent is added to 100 parts by mass of the conductive material.
12. An article prepared by using the high performance halogen-free flame retardant PC/CNT conductive material of any one of claims 1 to 11.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370190A (en) * | 2018-09-30 | 2019-02-22 | 金旸（厦门）新材料科技有限公司 | A kind of thin wall type high CTI value flame resistant polycarbonate blends and preparation method thereof |
| CN110551377A (en) * | 2018-06-01 | 2019-12-10 | 汉达精密电子(昆山)有限公司 | High-performance halogen-free flame-retardant PC/carbon nano tube conductive material and product thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110551377A (en) * | 2018-06-01 | 2019-12-10 | 汉达精密电子(昆山)有限公司 | High-performance halogen-free flame-retardant PC/carbon nano tube conductive material and product thereof |
| CN109370190A (en) * | 2018-09-30 | 2019-02-22 | 金旸（厦门）新材料科技有限公司 | A kind of thin wall type high CTI value flame resistant polycarbonate blends and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 孔萍 等: "《塑料材料》", 31 July 2017, 广东高等教育出版社 * |
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