CN113527817A - Polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof - Google Patents
Polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof Download PDFInfo
- Publication number
- CN113527817A CN113527817A CN202010288062.2A CN202010288062A CN113527817A CN 113527817 A CN113527817 A CN 113527817A CN 202010288062 A CN202010288062 A CN 202010288062A CN 113527817 A CN113527817 A CN 113527817A
- Authority
- CN
- China
- Prior art keywords
- walled carbon
- ultra
- carbon nanotubes
- polystyrene
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
-
- 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
- C08K2201/017—Additives being an antistatic agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to the technical field of preparation of static elimination composite materials, and particularly discloses a polystyrene composite static elimination material containing ultra-dispersed multi-walled carbon nanotubes and a preparation method thereof. The polystyrene composite material containing the ultra-dispersed multi-walled carbon nano-tube comprises the following raw material components in parts by weight: 90-110 parts of polystyrene; 1-2 parts of ultra-dispersed multi-walled carbon nanotubes; 1-3 parts of a dispersing agent and 1-2 parts of a lubricating agent. The dispersant is prepared by the following method: adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 1-2 hours at the temperature of 60-70 ℃, and concentrating to remove the solvent to obtain the dispersing agent; the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2. The experiment of the embodiment shows that the polystyrene composite material containing the ultra-dispersed multi-wall carbon nano tube has excellent electrostatic dissipation performance.
Description
Technical Field
The invention relates to the technical field of preparation of static elimination composite materials, in particular to a polystyrene composite static elimination material containing ultra-dispersed multi-walled carbon nanotubes and a preparation method thereof.
Background
Polystyrene (PS) is a polymer synthesized from styrene monomers by a free radical addition polymerization reaction, has the advantages of good processing fluidity, good rigidity, good chemical corrosion resistance and the like, and is one of the main general plastics applied in the fields of electronics, electrical appliance industry and automobile industry.
With the higher precision of electronic components, in order to protect the electronic components from electrostatic damage, the carrier tapes and chip packaging materials of the electronic components are required to have excellent electrostatic elimination performance, so that the development of polystyrene composite materials with electrostatic elimination effect has important application prospects.
Disclosure of Invention
The invention aims to solve the technical problem of providing a polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes. The polystyrene composite static electricity dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes has excellent static electricity elimination effect.
A polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes comprises the following raw material components in parts by weight:
90-110 parts of polystyrene;
1-2 parts of a super-dispersed multi-walled carbon nanotube;
1-3 parts of a dispersing agent;
1-2 parts of a lubricant.
Preferably, the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-wall carbon nanotubes comprises the following raw material components in parts by weight:
90-100 parts of polystyrene;
1-2 parts of a super-dispersed multi-walled carbon nanotube;
1-2 parts of a dispersing agent;
1-2 parts of a lubricant.
Preferably, the ultra-dispersed carbon nanotube is prepared by the following method:
(1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the multi-walled carbon nanotubes into dispersing equipment for dispersing for 5-10 min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 5-10 mL;
(2) adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 5-10 min, and then drying to obtain a super-dispersed multi-walled carbon nanotube;
the dosage ratio of the pre-dispersant to the multi-walled carbon nanotube slurry in the step (2) is 1-2 g: 100-150 mL.
Further preferably, the dispersing device in step (1) is an ultrasonic disperser; most preferably, the ultrasonic disperser is a circulating multistage ultrasonic disperser.
Preferably, the carbon nanotubes are multi-walled carbon nanotubes.
Preferably, the predispersion is prepared by the following method:
adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 1-2 h at the temperature of 60-70 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent;
The molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
Preferably, the dispersant is prepared by the following method:
adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 1-2 hours at the temperature of 60-70 ℃, and concentrating to remove the solvent to obtain the dispersing agent;
the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2.
Preferably, the lubricant is obtained by mixing stearic acid and liquid paraffin;
the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The invention also provides a preparation method of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes, which comprises the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 5-10 min, wherein the temperature of a stirring barrel is 50-60 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Has the advantages that: the invention provides a polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes, which is characterized in that on one hand, the ultra-dispersed multi-walled carbon nanotubes are prepared by adding the pre-dispersing agent prepared in the brand-new way, so that the agglomeration of the carbon nanotubes is effectively prevented, and the carbon nanotubes can be fully dispersed in the polystyrene composite electrostatic dissipation material; furthermore, the dispersant prepared in the brand new way is added, so that the ultra-dispersed multi-walled carbon nanotubes are further fully and efficiently dispersed in the polystyrene composite static dissipative material, and the static dissipation performance of the polystyrene composite static dissipative material is improved under the condition that the addition amount of the carbon nanotubes is very small; as can be seen from the comparative experiment, the static electricity dissipation performance of the polystyrene composite static electricity dissipation material obtained by adding the pre-dispersant and the dispersant of the invention is more excellent than that of the polystyrene composite static electricity dissipation material obtained by adding the conventional dispersant.
Detailed Description
The present invention is further explained below with reference to specific examples, which are not intended to limit the present invention in any way.
Example 1 composite static dissipative polystyrene materials containing ultra-dispersed multi-walled carbon nanotubes
The weight parts of the raw materials are as follows: 95 parts of polystyrene; 2 parts of super-dispersed carbon nano tubes; 2 parts of a dispersing agent; and 2 parts of a lubricant.
The ultra-dispersed carbon nano tube is prepared by the following method: (1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the mixture into a circulating multistage ultrasonic dispersion machine for dispersion for 10min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 10 mL. (2) Adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 10min, and then drying to obtain a super-dispersed multi-walled carbon nanotube; the dosage ratio of the pre-dispersant to the multi-wall carbon nanotube slurry in the step (2) is 2 g: 150 mL. The predispersion is prepared by the following method: adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 2 hours at the temperature of 65 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent; the molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
The dispersant is prepared by the following method: adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 2 hours at 70 ℃, and concentrating to remove the solvent to obtain the dispersing agent; the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2.
The lubricant is obtained by mixing stearic acid and liquid paraffin; the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The preparation method comprises the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 10min, wherein the temperature of a stirring barrel is 50 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Example 2 polystyrene composite static dissipative materials containing ultra-dispersed multi-walled carbon nanotubes
The weight parts of the raw materials are as follows: 90 parts of polystyrene; 2 parts of super-dispersed carbon nano tubes; 1 part of a dispersant; and 2 parts of a lubricant.
The ultra-dispersed carbon nano tube is prepared by the following method: (1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the mixture into a circulating multistage ultrasonic dispersion machine for dispersion for 10min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 5 mL. (2) Adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 10min, and then drying to obtain a super-dispersed multi-walled carbon nanotube; the dosage ratio of the pre-dispersant to the multi-wall carbon nanotube slurry in the step (2) is 1 g: 100 mL. The predispersion is prepared by the following method: adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 2 hours at the temperature of 65 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent; the molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
The dispersant is prepared by the following method: adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 2 hours at 70 ℃, and concentrating to remove the solvent to obtain the dispersing agent; the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2.
The lubricant is obtained by mixing stearic acid and liquid paraffin; the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The preparation method comprises the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 10min, wherein the temperature of a stirring barrel is 50 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Example 3 polystyrene composite Electrostatic dissipative Material containing ultra-dispersed Multi-walled carbon nanotubes
The weight parts of the raw materials are as follows: 100 parts of polystyrene; 1 part of super-dispersed carbon nano tube; 1 part of a dispersant; and 2 parts of a lubricant.
The ultra-dispersed carbon nano tube is prepared by the following method: (1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the mixture into a circulating multistage ultrasonic dispersion machine for dispersion for 10min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 10 mL. (2) Adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 10min, and then drying to obtain a super-dispersed multi-walled carbon nanotube; the dosage ratio of the pre-dispersant to the multi-wall carbon nanotube slurry in the step (2) is 1 g: 100 mL. The predispersion is prepared by the following method: adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 2 hours at the temperature of 65 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent; the molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
The dispersant is prepared by the following method: adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 2 hours at 70 ℃, and concentrating to remove the solvent to obtain the dispersing agent; the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2.
The lubricant is obtained by mixing stearic acid and liquid paraffin; the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The preparation method comprises the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 10min, wherein the temperature of a stirring barrel is 50 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Comparative example 1 polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes
The weight parts of the raw materials are as follows: 95 parts of polystyrene; 2 parts of super-dispersed carbon nano tubes; 2 parts of a dispersing agent; and 2 parts of a lubricant.
The ultra-dispersed carbon nano tube is prepared by the following method: (1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the mixture into a circulating multistage ultrasonic dispersion machine for dispersion for 10min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 10 mL. (2) Adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 10min, and then drying to obtain a super-dispersed multi-walled carbon nanotube; the dosage ratio of the pre-dispersant to the multi-wall carbon nanotube slurry in the step (2) is 2 g: 150 mL. The predispersion is prepared by the following method: adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 2 hours at the temperature of 65 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent; the molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
The dispersing agent is ethylene diamine dipolyphenyl sodium acetate which is a conventional dispersing agent.
The lubricant is obtained by mixing stearic acid and liquid paraffin; the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The preparation method comprises the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 10min, wherein the temperature of a stirring barrel is 50 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Comparative example 1 differs from example 1 in that comparative example 1 employs the conventional dispersant sodium ethylenediamine dipentylphenyl acetate; and example 1 adopts a completely new method to prepare the obtained dispersant.
Comparative example 2 polystyrene composite static dissipative material containing ultra-dispersed multi-walled carbon nanotubes
The weight parts of the raw materials are as follows: 95 parts of polystyrene; 2 parts of super-dispersed carbon nano tubes; 2 parts of a dispersing agent; and 2 parts of a lubricant.
The ultra-dispersed carbon nano tube is prepared by the following method: (1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the mixture into a circulating multistage ultrasonic dispersion machine for dispersion for 10min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 10 mL. (2) Adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 10min, and then drying to obtain a super-dispersed multi-walled carbon nanotube; the dosage ratio of the pre-dispersant to the multi-wall carbon nanotube slurry in the step (2) is 2 g: 150 mL. The predispersion agent adopts a conventional dispersant of ethylenediamine-di-o-phenyl sodium acetate.
The dispersing agent is ethylene diamine dipolyphenyl sodium acetate which is a conventional dispersing agent.
The lubricant is obtained by mixing stearic acid and liquid paraffin; the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The preparation method comprises the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 10min, wherein the temperature of a stirring barrel is 50 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Comparative example 2 differs from example 1 in that the predispersion and dispersant of comparative example 2 both employ the conventional dispersant sodium ethylenediamine diphthenzoate; the preparation of example 1 is completely new.
Comparative example 3 polystyrene composite static dissipative material containing ultra-dispersed multi-walled carbon nanotubes
The weight parts of the raw materials are as follows: 95 parts of polystyrene; 2 parts of super-dispersed carbon nano tubes; 2 parts of a dispersing agent; and 2 parts of a lubricant.
The ultra-dispersed carbon nano tube is prepared by the following method: (1) dispersing the multi-walled carbon nanotubes in deionized water, and then putting the mixture into a circulating multistage ultrasonic dispersion machine for dispersion for 10min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 10 mL. (2) Adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 10min, and then drying to obtain a super-dispersed multi-walled carbon nanotube; the dosage ratio of the pre-dispersant to the multi-wall carbon nanotube slurry in the step (2) is 2 g: 150 mL. The predispersion is prepared by the following method: adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 2 hours at the temperature of 65 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent; the molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
The dispersant is prepared by the following method: adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 2 hours at 70 ℃, and concentrating to remove the solvent to obtain the dispersing agent; the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2.
The lubricant is obtained by mixing stearic acid and liquid paraffin; the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
The preparation method comprises the following steps: firstly, adding polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant into a conventional barrel type stirrer for mixing; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Comparative example 3 differs from example 1 in that comparative example 3 uses a conventional barrel mixer to mix the mixture, whereas example 1 uses a newly developed horizontal twin-screw mixer.
Examples of the experiments
The surface resistivity of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in the examples 1 to 3 and the comparative examples 1 to 3 is tested according to the IEC60093 standard, and the specific test results are shown in Table 1.
TABLE 1 surface resistivity test results for polystyrene composite static dissipative materials
| Test object | Surface resistivity |
| Example 1 polystyrene composite static dissipative Material | 3.8×103Ω/sq. |
| Example 2 polystyrene composite static dissipative Material | 6.8×104Ω/sq. |
| Example 3 polystyrene composite static dissipative Material | 9.2×105Ω/sq. |
| Comparative example 1 polystyrene composite static dissipative material | 1.8×107Ω/sq. |
| Comparative example 2 polystyrene composite static electricity dissipation material | 2.6×109Ω/sq. |
| Comparison ofExample 3 polystyrene composite static dissipative Material | 7.3×106Ω/sq. |
From the antistatic test results in table 1, it can be seen that the polystyrene composite electrostatic dissipation materials containing the ultra-dispersed multi-walled carbon nanotubes prepared in examples 1 to 3 all have lower surface resistivity, which indicates that the polystyrene composite electrostatic dissipation materials have excellent electrostatic dissipation effect; in particular, the surface resistivity of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in example 1 is the lowest, which shows that the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in example 1 has the best electrostatic dissipation performance.
It can be seen from the experimental data of example 1 and comparative examples 1 and 2 that the surface resistivity of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in example 1 is much smaller than the surface resistivity of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in comparative examples 1 and 2. This indicates that the polystyrene composite electrostatic dissipation material with excellent electrostatic dissipation effect of the present invention cannot be obtained by using the conventional dispersant as the pre-dispersant and the dispersant.
From the experimental data of example 1 and comparative example 3, it can be seen that the surface resistivity of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in example 1 is smaller than the surface resistivity of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes prepared in comparative example 3. This demonstrates the best static dissipation performance of the composite static dissipation material made from polystyrene containing ultra-dispersed multi-walled carbon nanotubes using the horizontal twin-blade mixer described in example 1.
Claims (9)
1. The polystyrene electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes is characterized by comprising the following raw material components in parts by weight:
90-110 parts of polystyrene;
1-2 parts of a super-dispersed multi-walled carbon nanotube;
1-3 parts of a dispersing agent;
1-2 parts of a lubricant.
2. The polystyrene electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes as claimed in claim 1, wherein the polystyrene electrostatic dissipation material comprises the following raw materials in parts by weight:
90-100 parts of polystyrene;
1-2 parts of a super-dispersed multi-walled carbon nanotube;
1-2 parts of a dispersing agent;
1-2 parts of a lubricant.
3. The polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes as claimed in claim 1, wherein the ultra-dispersed multi-walled carbon nanotubes are prepared by the following method:
(1) Dispersing the multi-walled carbon nanotubes in deionized water, and then putting the multi-walled carbon nanotubes into dispersing equipment for dispersing for 5-10 min to obtain multi-walled carbon nanotube slurry; the dosage ratio of the multi-walled carbon nano-tube to the deionized water is 1 g: 5-10 mL;
(2) adding a pre-dispersing agent into the multi-walled carbon nanotube slurry prepared in the step (1) for ultrasonic dispersion for 5-10 min, and then drying to obtain a super-dispersed multi-walled carbon nanotube;
the dosage ratio of the pre-dispersant to the multi-walled carbon nanotube slurry in the step (2) is 1-2 g: 100-150 mL.
4. The polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes as claimed in claim 3, wherein the dispersing device in step (1) is an ultrasonic disperser; preferably, the ultrasonic disperser is a circulating multistage ultrasonic disperser.
5. The polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes as claimed in claim 3, wherein the carbon nanotubes are multi-walled carbon nanotubes.
6. The polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes as claimed in claim 3, wherein the pre-dispersion agent is prepared by the following method:
Adding hexafluorophosphoric acid into an organic solvent, then adding a lithium hydroxide solution, reacting for 1-2 h at the temperature of 60-70 ℃, and concentrating to remove the solvent to obtain the pre-dispersing agent;
the molar ratio of the hexafluorophosphoric acid to the lithium hydroxide is 1:1: 2.
7. The polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes as claimed in claim 1, wherein the dispersant is prepared by the following method:
adding oleic acid and tetrafluoroboric acid into an organic solvent, then adding a sodium hydroxide solution, reacting for 1-2 hours at the temperature of 60-70 ℃, and concentrating to remove the solvent to obtain the dispersing agent;
the molar ratio of the oleic acid, the tetrafluoroboric acid and the sodium hydroxide is 1:1: 2.
8. The polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes as claimed in claim 1, wherein the lubricant is stearic acid mixed with liquid paraffin;
the mass part ratio of the stearic acid to the liquid paraffin is 1: 2.
9. The preparation method of the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nanotubes as recited in any one of claims 1 to 8, comprising the following steps: firstly, mixing polystyrene, a super-dispersed multi-walled carbon nanotube, a dispersant and a lubricant, and then adding the mixture into a horizontal double-rotary-vane stirrer to stir for 5-10 min, wherein the temperature of a stirring barrel is 50-60 ℃; and then the mixture is put into a double-screw extruder to be extruded to obtain the polystyrene composite electrostatic dissipation material containing the ultra-dispersed multi-walled carbon nano-tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288062.2A CN113527817A (en) | 2020-04-14 | 2020-04-14 | Polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010288062.2A CN113527817A (en) | 2020-04-14 | 2020-04-14 | Polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113527817A true CN113527817A (en) | 2021-10-22 |
Family
ID=78087950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010288062.2A Pending CN113527817A (en) | 2020-04-14 | 2020-04-14 | Polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113527817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116199937A (en) * | 2023-03-16 | 2023-06-02 | 深圳烯湾科技有限公司 | Preparation method and application of carbon nanotube dispersion and polystyrene composite material |
-
2020
- 2020-04-14 CN CN202010288062.2A patent/CN113527817A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116199937A (en) * | 2023-03-16 | 2023-06-02 | 深圳烯湾科技有限公司 | Preparation method and application of carbon nanotube dispersion and polystyrene composite material |
| CN116199937B (en) * | 2023-03-16 | 2023-12-19 | 深圳烯湾科技有限公司 | Preparation method and application of carbon nanotube dispersion and polystyrene composite material |
| WO2024187571A1 (en) * | 2023-03-16 | 2024-09-19 | 深圳烯湾科技有限公司 | Preparation methods for and uses of carbon nanotube dispersion and polystyrene composite material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Al-Saleh et al. | A review of vapor grown carbon nanofiber/polymer conductive composites | |
| CN1267512C (en) | Conductive ink composition | |
| JP5268050B2 (en) | Carbon nanotube-containing resin composition, cured product, molded article, and method for producing carbon nanotube-containing resin composition | |
| KR102582093B1 (en) | Two or more amine groups including functionalized graphene and method for preparing the same | |
| CN104136504B (en) | The manufacture method and conductive resin composition of conductive resin composition | |
| CN109880247B (en) | Polystyrene electronic carrier tape material containing ultra-dispersed carbon nanotubes and preparation method thereof | |
| Vasileiou et al. | Correlation between the length reduction of carbon nanotubes and the electrical percolation threshold of melt compounded polyolefin composites | |
| CN110835491A (en) | Graphene and carbon nanotube composite anti-static floor coating and preparation method thereof | |
| CN113527817A (en) | Polystyrene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof | |
| KR20110078154A (en) | Carbonnanotube-polymer nanocomplex with fluidizing bed multi-walled carbon nanotube, and preparation method thereof | |
| CN111171381A (en) | Nano α -alumina-loaded thermal reduction graphene, preparation method and high-thermal-conductivity electrical insulation elastomer thermal interface material | |
| CN101928407A (en) | Preparation method of composition containing graphene | |
| CN106590521A (en) | Heat-conducting silicon rubber prepared from modified boron nitride and preparation method thereof | |
| CN113512282A (en) | Polycarbonate composite conductive material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof | |
| CN109825069A (en) | A kind of Antistatic Nylon material and its application on new-energy automobile component | |
| CN113527782A (en) | Polyethylene composite electrostatic dissipation material containing ultra-dispersed multi-walled carbon nanotubes and preparation method thereof | |
| CN114561096B (en) | High-dimensional-stability conductive PPE/PA alloy and preparation method and application thereof | |
| CN114133665B (en) | High-conductivity composite master batch containing carbon black and carbon nano tubes and preparation method thereof | |
| CN116751531A (en) | Heat-conducting insulating adhesive film and preparation method and application thereof | |
| CN105802488A (en) | Coating containing composite silicone rubber and preparation method of coating | |
| KR20120078469A (en) | Pomymer/carbon nanotube composites improved in electrical conductivity and preparation method thereof | |
| CN1133693C (en) | Organic rigid-particle filled composite material and its preparation | |
| CN114230827B (en) | Carbon nano tube/polyphenylene sulfide composite conductive film and preparation method and application thereof | |
| CN111040679B (en) | Conductive hot melt adhesive and preparation process thereof | |
| CN114773823B (en) | Viscoelastic polymer composite conductive material and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Applicant after: Shenzhen Zhongke Xinchuang nanotechnology Co.,Ltd. Address before: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Applicant before: One field technology (Shenzhen) Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |