CN112280203A - Modified reinforced PS (polystyrene) antistatic plastic sheet and preparation method thereof - Google Patents
Modified reinforced PS (polystyrene) antistatic plastic sheet and preparation method thereof Download PDFInfo
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- CN112280203A CN112280203A CN202011070303.2A CN202011070303A CN112280203A CN 112280203 A CN112280203 A CN 112280203A CN 202011070303 A CN202011070303 A CN 202011070303A CN 112280203 A CN112280203 A CN 112280203A
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F112/00—Homopolymers 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
- C08F112/02—Monomers containing only one unsaturated aliphatic radical
- C08F112/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F112/06—Hydrocarbons
- C08F112/08—Styrene
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- 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
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention provides a modified reinforced PS antistatic plastic sheet and a preparation method thereof. The method comprises the following steps: carrying out ultrasonic dispersion on toluene, styrene, antistatic particles, hollow-shell structure conductive carbon black and isobutyl-butyronitrile dithiobenzoate, and adding azobisisobutyronitrile for continuous ultrasonic dispersion; transferring the mixture into a four-neck flask with a condensing tube and electric stirring, introducing argon, and placing the reaction flask in a water bath for reaction; dripping hydroquinone tetrahydrofuran solution into the mixture, putting the mixture into a vacuum oven, and removing the solvent and unreacted monomers to obtain modified enhanced PS antistatic plastic particles; and (3) placing the modified enhanced PS antistatic plastic particles into a mold, preheating the mold by using a flat vulcanizing machine, maintaining the pressure, and cooling to room temperature to obtain the modified enhanced PS antistatic plastic sheet. According to the modified reinforced PS antistatic plastic sheet, the antistatic particles prepared from the biological carrier can be well combined on the surface of the PS sheet, so that the modified reinforced PS antistatic plastic sheet has good conductivity and can effectively improve the antistatic performance.
Description
Technical Field
The invention relates to the field of new materials, in particular to a modified reinforced PS antistatic plastic sheet and a preparation method thereof.
Background
With the rapid development of economic society and the wide application of the internet, the logistics industry is rapidly developed, and the development of the plastic industry is greatly improved, wherein Polystyrene (PS) is one of the materials. Meanwhile, with the improvement of living standard of people, the requirements on the functionality of materials are more and more strict, and besides the most basic mechanical properties, the antistatic property of the materials is more and more required. In recent years, along with the development of the electronic industry, the harm of static electricity to human beings is increasing. For example, interfering with the proper functioning of the aircraft radio, thereby affecting aircraft flight; static electricity also causes harm to human bodies, and polystyrene itself does not have antistatic properties. Therefore, how to prepare the PS material with excellent antistatic performance has important significance.
Disclosure of Invention
The technical problem to be solved is as follows: the invention aims to provide a modified reinforced PS antistatic plastic sheet, wherein antistatic particles prepared from a biological carrier can be well combined on the surface of the PS sheet, have good conductivity and can effectively improve the antistatic performance.
The technical scheme is as follows: a modified reinforced antistatic PS plastic sheet comprises antistatic particles, hollow-shell conductive carbon black and styrene.
Further, the preparation method of the antistatic particles comprises the following steps:
(1) weighing pollen, and washing with anhydrous ethanol;
(2) performing suction filtration, washing with absolute ethyl alcohol for 2-3 times, and drying in an oven;
(3) placing in a ball mill for ball milling wall breaking, and taking out after the ball mill vibrates for 3-5min, wherein the ball milling frequency is 20-25 Hz;
(4) soaking in sodium hydroxide solution for 1-2h, washing with distilled water to neutrality, and oven drying;
(5) adding 5wt% of dopamine solution, mixing the pollen with the dopamine solution according to the volume ratio of 1g to 10-20ml, magnetically stirring for 1-2h, and drying;
(6) treating in electrostatic field for 10-20min, collecting pollen carrier placed in negative electrode;
(7) taking chloroauric acid solution, adjusting pH to 7-8 with 1mol/L sodium hydroxide solution, adding pollen carrier after stabilization, and soaking for 24-30 h;
(8) drying, soaking in 2% ammonia water for 12 hr, and repeatedly washing with distilled water until no adsorbed Cl-;
(9) and adding distilled water, freezing and then carrying out freeze drying to obtain the anti-static particles based on the biological template.
Further, the pollen is Chinese rose pollen, rape pollen, osmanthus powder, rose pollen and chrysanthemum powder.
Further, the percolation threshold value of the hollow shell structure conductive carbon black is 10-11%, and the particle size is 20-30 nm.
The preparation method of the modified reinforced PS antistatic plastic sheet comprises the following steps:
s1: carrying out ultrasonic dispersion on 30g of toluene, 60g of styrene, 1-1.5g of antistatic particles, 0.8-1.2g of hollow-shell structure conductive carbon black and 0.663 g of isobutyronitrile dithiobenzoate at 0 ℃ for 30min, adding 0.123g of azobisisobutyronitrile, and continuing to carry out ultrasonic dispersion for 2 min;
s2: transferring the mixture into a four-neck flask with a condensing tube and electric stirring, introducing argon at 0 ℃ for 2 hours, and placing the reaction flask in a 70 ℃ water bath for reaction;
s3: dripping 0.5 wt% of hydroquinone tetrahydrofuran solution into the mixture, putting the mixture into a vacuum oven at the temperature of 110 ℃, and removing the solvent and unreacted monomers to obtain modified reinforced PS antistatic plastic particles;
s4: placing the modified enhanced PS antistatic plastic particles into a mold, preheating the mold for 10-15min at the temperature of 240-250 ℃ by using a flat vulcanizing machine, maintaining the pressure for 5-10min at the pressure of 6-8MPa, and cooling to room temperature to obtain the modified enhanced PS antistatic plastic sheet.
Has the advantages that:
1. the pollen wall mainly comprises sporopollen and pectin and has good acid resistance, alkali resistance and corrosion resistance, so that the invention firstly adopts ball milling to perform partial wall breaking, but because the wall breaking effect of the ball milling is limited, the pores are increased by using alkali treatment again.
2. Pollen is easy to agglomerate, dopamine can self-polymerize on the surface of the dopamine to form a hydrophilic film, so that the dopamine is uniformly and stably dispersed in water, and then coordination bonds are formed between amino groups or imino groups in the dopamine, zinc ions and vanadium ions through the adhesion of the dopamine to the pollen and the coordination bonds formed between amino groups or imino groups in the polydopamine and the zinc ions and the vanadium ions, so that the dopamine is used as an intermediate bridge, and better loading can be realized.
3. After the pollen is placed in an electrostatic field for treatment, the holes are more uniform and dense.
4. The antistatic particles prepared by the biological carrier can be well combined on the surface of the PS sheet, have good conductivity and can effectively improve the antistatic performance.
Detailed Description
Example 1
A preparation method of a modified reinforced PS antistatic plastic sheet comprises the following steps:
s1: carrying out ultrasonic dispersion on 30g of toluene, 60g of styrene, 1g of antistatic particles, 0.8g of hollow-shell structure conductive carbon black and 0.663 g of isobutyronitrile dithiobenzoate at 0 ℃ for 30min, adding 0.123g of azobisisobutyronitrile, and continuing ultrasonic treatment for 2min, wherein the percolation threshold value of the hollow-shell structure conductive carbon black is 10-11%, and the particle size is 20-30 nm;
s2: transferring the mixture into a four-neck flask with a condensing tube and electric stirring, introducing argon at 0 ℃ for 2 hours, and placing the reaction flask in a 70 ℃ water bath for reaction;
s3: dripping 0.5 wt% of hydroquinone tetrahydrofuran solution into the mixture, putting the mixture into a vacuum oven at the temperature of 110 ℃, and removing the solvent and unreacted monomers to obtain modified reinforced PS antistatic plastic particles;
s4: and (3) placing the modified enhanced PS antistatic plastic particles into a mold, preheating the mold for 10min at 240 ℃ by using a flat vulcanizing machine, maintaining the pressure for 5min under the pressure of 6MPa, and cooling to room temperature to obtain the modified enhanced PS antistatic plastic sheet.
The preparation method of the antistatic particles comprises the following steps:
(1) weighing Chinese rose pollen, and washing with absolute ethyl alcohol;
(2) performing suction filtration, washing for 3 times by using absolute ethyl alcohol, and drying in an oven;
(3) placing the powder in a ball mill for ball milling wall breaking, and taking out the powder after the ball mill vibrates for 3min, wherein the ball milling frequency is 20 Hz;
(4) soaking in sodium hydroxide solution for 1h, washing with distilled water to neutrality, and drying in an oven;
(5) adding 5wt% of dopamine solution, mixing the pollen with the dopamine solution according to the volume ratio of 1g to 10ml, magnetically stirring for 1h, and drying;
(6) treating in electrostatic field for 10min, collecting pollen carrier placed in negative electrode;
(7) taking chloroauric acid solution, adjusting pH to 7 with 1mol/L sodium hydroxide solution, adding pollen carrier after stabilization, and soaking for 24 h;
(8) drying, soaking in 2% ammonia water for 12 hr, and repeatedly washing with distilled water until no adsorbed Cl-;
(9) and adding distilled water, freezing and then carrying out freeze drying to obtain the anti-static particles based on the biological template.
The thickness of the modified reinforced PS antistatic plastic sheet prepared by the embodiment is 0.5mm, and the volume resistivity and the oxygen index are measured according to the national standard method.
Example 2
A preparation method of a modified reinforced PS antistatic plastic sheet comprises the following steps:
s1: carrying out ultrasonic dispersion on 30g of toluene, 60g of styrene, 1.2g of antistatic particles, 1g of hollow-shell structure conductive carbon black and 0.663 g of isobutyronitrile dithiobenzoate at 0 ℃ for 30min, adding 0.123g of azobisisobutyronitrile, and continuing ultrasonic treatment for 2min, wherein the percolation threshold value of the hollow-shell structure conductive carbon black is 10-11%, and the particle size is 20-30 nm;
s2: transferring the mixture into a four-neck flask with a condensing tube and electric stirring, introducing argon at 0 ℃ for 2 hours, and placing the reaction flask in a 70 ℃ water bath for reaction;
s3: dripping 0.5 wt% of hydroquinone tetrahydrofuran solution into the mixture, putting the mixture into a vacuum oven at the temperature of 110 ℃, and removing the solvent and unreacted monomers to obtain modified reinforced PS antistatic plastic particles;
s4: and (3) placing the modified enhanced PS antistatic plastic particles into a mold, preheating the mold for 13min at 245 ℃ by using a flat vulcanizing machine, maintaining the pressure for 8min under the pressure of 7MPa, and cooling to room temperature to obtain the modified enhanced PS antistatic plastic sheet.
The preparation method of the antistatic particles comprises the following steps:
(1) weighing sweet osmanthus powder, and washing with absolute ethyl alcohol;
(2) performing suction filtration, washing for 3 times by using absolute ethyl alcohol, and drying in an oven;
(3) placing the powder in a ball mill for ball milling wall breaking, and taking out the powder after the ball mill vibrates for 4min, wherein the ball milling frequency is 23 Hz;
(4) soaking in sodium hydroxide solution for 1.5h, washing with distilled water to neutrality, and oven drying;
(5) adding 5wt% of dopamine solution, mixing the pollen with the dopamine solution according to the volume ratio of 1g to 15ml, magnetically stirring for 1.5h, and drying;
(6) treating in electrostatic field for 15min, and collecting pollen carrier placed at negative electrode;
(7) taking chloroauric acid solution, adjusting pH to 7.5 with 1mol/L sodium hydroxide solution, adding pollen carrier after stabilization, and soaking for 27 h;
(8) drying, soaking in 2% ammonia water for 12 hr, and repeatedly washing with distilled water until no adsorbed Cl-;
(9) and adding distilled water, freezing and then carrying out freeze drying to obtain the anti-static particles based on the biological template.
The thickness of the modified reinforced PS antistatic plastic sheet prepared by the embodiment is 0.5mm, and the volume resistivity and the oxygen index are measured according to the national standard method.
Example 3
A preparation method of a modified reinforced PS antistatic plastic sheet comprises the following steps:
s1: carrying out ultrasonic dispersion on 30g of toluene, 60g of styrene, 1.5g of antistatic particles, 1.2g of hollow-shell structure conductive carbon black and 0.663 g of isobutyronitrile dithiobenzoate at 0 ℃ for 30min, adding 0.123g of azobisisobutyronitrile, and continuing ultrasonic dispersion for 2min, wherein the percolation threshold value of the hollow-shell structure conductive carbon black is 10-11%, and the particle size is 20-30 nm;
s2: transferring the mixture into a four-neck flask with a condensing tube and electric stirring, introducing argon at 0 ℃ for 2 hours, and placing the reaction flask in a 70 ℃ water bath for reaction;
s3: dripping 0.5 wt% of hydroquinone tetrahydrofuran solution into the mixture, putting the mixture into a vacuum oven at the temperature of 110 ℃, and removing the solvent and unreacted monomers to obtain modified reinforced PS antistatic plastic particles;
s4: and (3) placing the modified enhanced PS antistatic plastic particles into a mold, preheating the mold for 15min at 250 ℃ by using a flat vulcanizing machine, maintaining the pressure for 10min under the pressure of 8MPa, and cooling to room temperature to obtain the modified enhanced PS antistatic plastic sheet.
The preparation method of the antistatic particles comprises the following steps:
(1) weighing chrysanthemum powder, and washing with absolute ethyl alcohol;
(2) performing suction filtration, washing for 3 times by using absolute ethyl alcohol, and drying in an oven;
(3) placing the powder in a ball mill for ball milling wall breaking, and taking out the powder after the ball mill vibrates for 5min, wherein the ball milling frequency is 25 Hz;
(4) soaking in sodium hydroxide solution for 2h, washing with distilled water to neutrality, and oven drying;
(5) adding 5wt% of dopamine solution, mixing the pollen with the dopamine solution according to the volume ratio of 1g to 20ml, magnetically stirring for 2h, and drying;
(6) treating in electrostatic field for 20min, collecting pollen carrier placed in negative electrode;
(7) taking chloroauric acid solution, adjusting pH to 8 with 1mol/L sodium hydroxide solution, adding pollen carrier after stabilization, and soaking for 30 h;
(8) drying, soaking in 2% ammonia water for 12 hr, and repeatedly washing with distilled water until no adsorbed Cl-;
(9) and adding distilled water, freezing and then carrying out freeze drying to obtain the anti-static particles based on the biological template.
The thickness of the modified reinforced PS antistatic plastic sheet prepared by the embodiment is 0.5mm, and the volume resistivity and the oxygen index are measured according to the national standard method.
| Performance of | |
| Volume resistivity (omega cm) | 1.1×1011 |
| Oxygen index | 28.8 |
。
Claims (5)
1. The modified reinforced antistatic PS plastic sheet is characterized by comprising the following components of antistatic particles, hollow-shell structure conductive carbon black and styrene.
2. The modified reinforced PS antistatic plastic sheet according to claim 1, wherein the antistatic particles are prepared by the following method:
(1) weighing pollen, and washing with anhydrous ethanol;
(2) performing suction filtration, washing with absolute ethyl alcohol for 2-3 times, and drying in an oven;
(3) placing in a ball mill for ball milling wall breaking, and taking out after the ball mill vibrates for 3-5min, wherein the ball milling frequency is 20-25 Hz;
(4) soaking in sodium hydroxide solution for 1-2h, washing with distilled water to neutrality, and oven drying;
(5) adding 5wt% of dopamine solution, mixing the pollen with the dopamine solution according to the volume ratio of 1g to 10-20ml, magnetically stirring for 1-2h, and drying;
(6) treating in electrostatic field for 10-20min, collecting pollen carrier placed in negative electrode;
(7) taking chloroauric acid solution, adjusting pH to 7-8 with 1mol/L sodium hydroxide solution, adding pollen carrier after stabilization, and soaking for 24-30 h;
(8) drying, soaking in 2% ammonia water for 12 hr, and repeatedly washing with distilled water until no adsorbed Cl-;
(9) and adding distilled water, freezing and then carrying out freeze drying to obtain the anti-static particles based on the biological template.
3. The modified reinforced PS antistatic plastic sheet of claim 2 wherein said pollen is rose pollen, rape pollen, osmanthus pollen, rose pollen and chrysanthemum pollen.
4. The modified reinforced PS antistatic plastic sheet as claimed in claim 1, wherein the percolation threshold of the hollow shell structured conductive carbon black is 10-11% and the particle size is 20-30 nm.
5. The preparation method of the modified reinforced PS antistatic plastic sheet according to claim 1, characterized by comprising the following steps:
s1: carrying out ultrasonic dispersion on 30g of toluene, 60g of styrene, 1-1.5g of antistatic particles, 0.8-1.2g of hollow-shell structure conductive carbon black and 0.663 g of isobutyronitrile dithiobenzoate at 0 ℃ for 30min, adding 0.123g of azobisisobutyronitrile, and continuing to carry out ultrasonic dispersion for 2 min;
s2: transferring the mixture into a four-neck flask with a condensing tube and electric stirring, introducing argon at 0 ℃ for 2 hours, and placing the reaction flask in a 70 ℃ water bath for reaction;
s3: dripping 0.5 wt% of hydroquinone tetrahydrofuran solution into the mixture, putting the mixture into a vacuum oven at the temperature of 110 ℃, and removing the solvent and unreacted monomers to obtain modified reinforced PS antistatic plastic particles;
s4: placing the modified enhanced PS antistatic plastic particles into a mold, preheating the mold for 10-15min at the temperature of 240-250 ℃ by using a flat vulcanizing machine, maintaining the pressure for 5-10min at the pressure of 6-8MPa, and cooling to room temperature to obtain the modified enhanced PS antistatic plastic sheet.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011070303.2A CN112280203A (en) | 2020-10-09 | 2020-10-09 | Modified reinforced PS (polystyrene) antistatic plastic sheet and preparation method thereof |
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| CN202011070303.2A CN112280203A (en) | 2020-10-09 | 2020-10-09 | Modified reinforced PS (polystyrene) antistatic plastic sheet and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112899518A (en) * | 2021-02-01 | 2021-06-04 | 苏州创泰合金材料有限公司 | Composite reinforced aluminum-magnesium alloy material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329610A (en) * | 2018-01-18 | 2018-07-27 | 青岛国恩科技股份有限公司 | A kind of antistatic PS modified materials of plastics sucking plate timber-used and preparation method thereof |
| CN109351340A (en) * | 2018-10-31 | 2019-02-19 | 嘉兴市海德姆智能电气有限公司 | A kind of biological template electronic material and its application in the treatment of waste water |
| CN111635473A (en) * | 2020-06-17 | 2020-09-08 | 苏州大学 | Method for regulating and controlling product dispersity of reversible addition-fragmentation chain transfer polymerization method |
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2020
- 2020-10-09 CN CN202011070303.2A patent/CN112280203A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329610A (en) * | 2018-01-18 | 2018-07-27 | 青岛国恩科技股份有限公司 | A kind of antistatic PS modified materials of plastics sucking plate timber-used and preparation method thereof |
| CN109351340A (en) * | 2018-10-31 | 2019-02-19 | 嘉兴市海德姆智能电气有限公司 | A kind of biological template electronic material and its application in the treatment of waste water |
| CN111635473A (en) * | 2020-06-17 | 2020-09-08 | 苏州大学 | Method for regulating and controlling product dispersity of reversible addition-fragmentation chain transfer polymerization method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112899518A (en) * | 2021-02-01 | 2021-06-04 | 苏州创泰合金材料有限公司 | Composite reinforced aluminum-magnesium alloy material |
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Application publication date: 20210129 |