CN112250904A - Preparation method of additive for improving performance of plastic shell of instrument panel - Google Patents

Preparation method of additive for improving performance of plastic shell of instrument panel Download PDF

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CN112250904A
CN112250904A CN202011078794.5A CN202011078794A CN112250904A CN 112250904 A CN112250904 A CN 112250904A CN 202011078794 A CN202011078794 A CN 202011078794A CN 112250904 A CN112250904 A CN 112250904A
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preparation
instrument panel
stirring
additive
zinc oxide
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贺军成
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Ma'anshan Hengwang Instrument Factory
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Ma'anshan Hengwang Instrument Factory
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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
    • C08K9/00—Use of pretreated ingredients
    • C08K9/08—Ingredients agglomerated by treatment with a binding agent
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24—Acids; Salts thereof
    • C08K3/26—Carbonates; Bicarbonates
    • 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
    • C08K3/28—Nitrogen-containing compounds
    • 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
    • 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
    • C08K9/04—Ingredients treated with organic substances
    • 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
    • C08K9/04—Ingredients treated with organic substances
    • C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
    • 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
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2296—Oxides; Hydroxides of metals of zinc
    • 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

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention discloses a preparation method of an additive for improving the performance of a plastic shell of an instrument panel, belonging to the technical field of plastic processing and comprising the following steps: (1) preparing a mixed solution A; (2) preparing nano zinc oxide dispersion liquid; (3) preparing a mixed solution B; (4) preparing mixed powder; (5) and (5) preparing a finished product. The finally prepared additive has excellent compatibility with matrix components of plastics, can be used in the processing and preparation of plastics of the instrument panel, obviously improves the comprehensive performance of the plastic shell of the instrument panel, improves the quality of the instrument panel, and has great market popularization value.

Description

Preparation method of additive for improving performance of plastic shell of instrument panel
Technical Field
The invention belongs to the technical field of plastic processing, and particularly relates to a preparation method of an additive for improving the performance of a plastic shell of an instrument panel.
Background
The instrument panel is a rigid flat plate or a structural member used for installing instruments and related devices, can reflect the working state of each system of an automobile, generally comprises a speedometer, a tachometer, an engine oil pressure gauge, a water temperature gauge and the like, and a plastic shell of the instrument panel is broken easily after impact due to poor mechanical property in the using process, and is easy to scratch after being frequently wiped on the surface in the usual cleaning process, so that the attractiveness and the using effect are seriously influenced. Therefore, the invention develops and researches the additive for improving the performance of the plastic shell of the instrument panel, and the additive is used for processing and preparing the plastic of the instrument panel and can effectively improve the quality of the instrument panel.
Disclosure of Invention
The invention aims to provide a preparation method of an additive for improving the performance of a plastic shell of an instrument panel, so as to solve the defects in the prior art.
The technical scheme adopted by the invention is as follows:
a preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1: 3-5, stirring and mixing uniformly, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1: 30-40, stirring and mixing uniformly at the temperature of 60-80 ℃, adding a silane coupling agent into the stirring tank, and stirring and mixing uniformly at the temperature of 50-60 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight volume ratio of 1g: 40-50 mL, and performing dispersion treatment for 1-2 hours under the ultrasonic condition to obtain a nano zinc oxide dispersion liquid for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 90-96 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1: 3-5, and continuously uniformly stirring at 90-96 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1: 1-2, placing the mixture in a low-energy proton irradiation box for proton irradiation treatment, placing the mixture in a bead mill for grinding after 30-40 min, and obtaining mixed powder for later use;
(5) and (3) preparing a finished product:
uniformly mixing the mixed powder obtained in the step (4) and the mixed liquid B obtained in the step (3) according to the weight-volume ratio of 1g: 29-39 mL, putting the mixture into a crucible, heating the mixture to 500-600 ℃, immersing an ultrasonic probe into a position which is about 5-8 cm below the liquid level of the mixed liquid B obtained in the step (3) under the condition of heat preservation, performing ultrasonic treatment, and communicating a direct-current magnetic field for 3-5 hours.
Further, the total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 20-26% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 3-5% of the total weight of the tartaric acid and the deionized water.
Further, the frequency of the ultrasonic wave during the ultrasonic dispersion treatment in the step (2) is 30-80 kHz.
Furthermore, in the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5-5.6% of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2-2.6% of the total weight of the mixed liquid A.
Further, the parameters of proton irradiation in step (4) are: the proton energy is 2-3 MeV, and the proton injection is 7-9 × 1010p/cm2。
Further, the frequency of the ultrasonic treatment in the step (5) is 20-24 kHz, and the magnetic field power is 900-1000W.
The invention has the following beneficial effects:
the invention develops and researches a preparation method of an additive for improving the performance of a plastic shell of an instrument panel aiming at the defects of the existing instrument panel plastic, the additive is used in the processing and preparation of the plastic, can effectively improve the comprehensive performance of the plastic and the quality of the instrument panel, firstly, the mixed solution A is prepared to change the surface characteristics of the nano zinc oxide through the mixed solution A, weaken the interfacial property between the nano zinc oxide and plastic matrix components and improve the compatibility between the nano zinc oxide and other components, the polyvinylpyrrolidone and the polyvinyl alcohol in a certain proportion are added in the preparation of the mixed solution B, so that the chemical characteristics of the polyvinylpyrrolidone and the polyvinyl alcohol are utilized to inhibit dispersed phase aggregation and particle fracture, stabilize the interface, ensure that the additive can be quickly and tightly combined into the matrix component of the plastic in the processing of the plastic, and play a role in the use of the instrument panel for a long time and continuously; the method comprises the steps of uniformly mixing lanthanum carbonate and cerium nitrate according to a proper proportion, then carrying out proton irradiation treatment, carrying out proton irradiation with proper energy, forming etching on the surfaces of the lanthanum carbonate and cerium nitrate, changing the physical structures of the lanthanum carbonate and cerium nitrate, roughening the surfaces of the lanthanum carbonate and cerium nitrate, increasing the specific surface areas and the surface roughness of the lanthanum carbonate and cerium nitrate, putting the obtained mixed powder and mixed liquid into a crucible together, fusing the mixed powder and the mixed liquid with each other under the synergistic effect of high temperature and ultrasonic-magnetic field coupling, and forming a huge molecular net structure on the surface of plastic by using the obtained additive in the preparation of the plastic so as to improve the comprehensive performance of the plastic.
Detailed Description
The following will clearly and completely describe the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1:3, stirring and mixing uniformly, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1:30, stirring and mixing uniformly at the temperature of 60 ℃, adding a silane coupling agent into the stirring tank, and stirring and mixing uniformly at the temperature of 50 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight-volume ratio of 1g to 40mL, and performing dispersion treatment for 1h under the ultrasonic condition to obtain nano zinc oxide dispersion for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 90 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1:3, and continuously uniformly stirring at 90 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1:1, placing the mixture in a low-energy proton irradiation box for proton irradiation treatment, placing the mixture in a bead mill for grinding after 30min, and obtaining mixed powder for later use;
(5) and (3) preparing a finished product:
uniformly mixing the mixed powder obtained in the step (4) and the mixed liquid B obtained in the step (3) according to the weight-volume ratio of 1g:29mL, putting the mixture into a crucible, heating the mixture to 500 ℃, immersing an ultrasonic probe into a position which is about 5cm below the liquid level of the mixed liquid B obtained in the step (3) under the condition of heat preservation, performing ultrasonic treatment, and simultaneously communicating a direct-current magnetic field for 3-5 hours.
The total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 20% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 3% of the total weight of the tartaric acid and the deionized water.
The ultrasonic dispersion treatment in the step (2) is carried out with the ultrasonic frequency of 30 kHz.
In the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5% of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2% of the total weight of the mixed liquid A.
The proton irradiation parameters in the step (4) are as follows: proton energy of 2MeV and proton fluence of 7X 1010p/cm2。
The ultrasonic treatment in the step (5) has a frequency of 20kHz and a magnetic field power of 900W.
Example 2
A preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1:4, stirring and uniformly mixing, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1:35, stirring and uniformly mixing at 70 ℃, adding a silane coupling agent into the stirring tank, and stirring and uniformly mixing at 55 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight-volume ratio of 1g:45mL, and performing dispersion treatment for 1.5h under the ultrasonic condition to obtain nano zinc oxide dispersion for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 93 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1:4, and continuously uniformly stirring at 93 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1:1.5, placing the mixture in a low-energy proton irradiation box for proton irradiation treatment, placing the mixture in a bead mill for grinding after 35min, and grinding to obtain mixed powder for later use;
(5) and (3) preparing a finished product:
uniformly mixing the mixed powder obtained in the step (4) and the mixed liquid B obtained in the step (3) according to the weight-volume ratio of 1g:34mL, putting the mixture into a crucible, heating the mixture to 550 ℃, immersing an ultrasonic probe into a position which is about 6.5cm below the liquid level of the mixed liquid B obtained in the step (3) under the condition of heat preservation, performing ultrasonic treatment, and communicating a direct current magnetic field for treatment for 4 hours.
The total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 23% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 4% of the total weight of the tartaric acid and the deionized water.
The ultrasonic frequency during the ultrasonic dispersion treatment in the step (2) is 55 kHz.
In the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5.3 percent of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2.3 percent of the total weight of the mixed liquid A.
The proton irradiation parameters in the step (4) are as follows: proton energy of 2.5MeV and proton fluence of 8X 1010p/cm2。
The ultrasonic treatment in the step (5) has a frequency of 22kHz and a magnetic field power of 950W.
Example 3
A preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1:5, stirring and mixing uniformly, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1:40, stirring and mixing uniformly at the temperature of 80 ℃, adding a silane coupling agent into the stirring tank, and stirring and mixing uniformly at the temperature of 60 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight-volume ratio of 1g to 50mL, and performing dispersion treatment for 2 hours under the ultrasonic condition to obtain nano zinc oxide dispersion liquid for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 96 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1:5, and continuously uniformly stirring at 96 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1:2, placing the mixture in a low-energy proton irradiation box for proton irradiation treatment, placing the mixture in a bead mill for grinding after 40min, and obtaining mixed powder for later use after grinding;
(5) and (3) preparing a finished product:
uniformly mixing the mixed powder obtained in the step (4) and the mixed liquid B obtained in the step (3) according to the weight-volume ratio of 1g:39mL, putting the mixture into a crucible, heating the mixture to 600 ℃, immersing an ultrasonic probe into a position about 8cm below the liquid level of the mixed liquid B obtained in the step (3) under the condition of heat preservation, performing ultrasonic treatment, and simultaneously communicating a direct-current magnetic field for treatment for 5 hours.
The total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 26% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 5% of the total weight of the tartaric acid and the deionized water.
The ultrasonic dispersion treatment in the step (2) is carried out with the ultrasonic frequency of 80 kHz.
In the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5.6 percent of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2.6 percent of the total weight of the mixed liquid A.
The proton irradiation parameters in the step (4) are as follows: proton energy of 3MeV and proton fluence of 9X 1010p/cm2。
The ultrasonic treatment in the step (5) has a frequency of 24kHz and a magnetic field power of 1000W.
Comparative example 1
A preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1:4, stirring and uniformly mixing, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1:35, stirring and uniformly mixing at 70 ℃, adding a silane coupling agent into the stirring tank, and stirring and uniformly mixing at 55 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight-volume ratio of 1g:45mL, and performing dispersion treatment for 1.5h under the ultrasonic condition to obtain nano zinc oxide dispersion for later use;
(3) preparation of mixed solution B:
and (3) injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 93 ℃, putting the polyvinylpyrrolidone and the polyvinyl alcohol into a stirring tank together according to the weight ratio of 1:4, and continuously uniformly stirring at 93 ℃ to obtain a mixed liquid B.
The total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 23% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 4% of the total weight of the tartaric acid and the deionized water.
The ultrasonic frequency during the ultrasonic dispersion treatment in the step (2) is 55 kHz.
In the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5.3 percent of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2.3 percent of the total weight of the mixed liquid A.
Comparative example 2
A preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1:4, stirring and uniformly mixing, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1:35, stirring and uniformly mixing at 70 ℃, adding a silane coupling agent into the stirring tank, and stirring and uniformly mixing at 55 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight-volume ratio of 1g:45mL, and performing dispersion treatment for 1.5h under the ultrasonic condition to obtain nano zinc oxide dispersion for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 93 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1:4, and continuously uniformly stirring at 93 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1:1.5, and then grinding the mixture in a bead mill to obtain mixed powder for later use;
(5) and (3) preparing a finished product:
uniformly mixing the mixed powder obtained in the step (4) and the mixed liquid B obtained in the step (3) according to the weight-volume ratio of 1g:34mL, putting the mixture into a crucible, heating the mixture to 550 ℃, immersing an ultrasonic probe into a position which is about 6.5cm below the liquid level of the mixed liquid B obtained in the step (3) under the condition of heat preservation, performing ultrasonic treatment, and communicating a direct current magnetic field for treatment for 4 hours.
The total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 23% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 4% of the total weight of the tartaric acid and the deionized water.
The ultrasonic frequency during the ultrasonic dispersion treatment in the step (2) is 55 kHz.
In the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5.3 percent of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2.3 percent of the total weight of the mixed liquid A.
The ultrasonic treatment in the step (5) has a frequency of 22kHz and a magnetic field power of 950W.
Comparative example 3
A preparation method of an additive for improving the performance of a plastic shell of an instrument panel comprises the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1:4, stirring and uniformly mixing, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1:35, stirring and uniformly mixing at 70 ℃, adding a silane coupling agent into the stirring tank, and stirring and uniformly mixing at 55 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight-volume ratio of 1g:45mL, and performing dispersion treatment for 1.5h under the ultrasonic condition to obtain nano zinc oxide dispersion for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 93 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1:4, and continuously uniformly stirring at 93 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1:1.5, placing the mixture in a low-energy proton irradiation box for proton irradiation treatment, placing the mixture in a bead mill for grinding after 35min, and grinding to obtain mixed powder for later use;
(5) and (3) preparing a finished product:
and (3) uniformly mixing the mixed powder obtained in the step (4) and the mixed solution B obtained in the step (3) according to the weight-volume ratio of 1g:34mL, putting the mixture into a crucible, heating the mixture to 550 ℃, and treating the mixture for 4 hours under the condition of heat preservation.
The total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 23% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 4% of the total weight of the tartaric acid and the deionized water.
The ultrasonic frequency during the ultrasonic dispersion treatment in the step (2) is 55 kHz.
In the step (3), the injection amount of the nano zinc oxide dispersion liquid is 5.3 percent of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2.3 percent of the total weight of the mixed liquid A.
The proton irradiation parameters in the step (4) are as follows: proton energy of 2.5MeV and proton fluence of 8X 1010p/cm2。
In order to compare the effects of the invention, performance test experiments are carried out on the several additives, which specifically comprise the following steps: the PVC plastic sample strip is prepared by taking PVC resin as a matrix, correspondingly adding the additives corresponding to the above examples 1-3 and comparative examples 1-3 respectively, wherein the addition conditions such as mass fraction and other additive types are completely the same except for different additives, and finally, correspondingly preparing the PVC plastic sample strip, and then, carrying out performance detection on the plastic sample strip, specifically:
(1) tensile strength:
the test is carried out on a GP-TS2000S electronic universal tester with the test standard GB/T1040-2006. The tensile test sample strips are 160mm × 5mm × 2mm dumbbell-shaped, the tensile rate is 50mm/min, the test environment is room temperature, and 5 sample strips are tested and averaged. The specific experimental comparative data are shown in the following table 1:
(2) bending strength:
the test is carried out on a GP-TS2000S electronic universal tester with the test standard GB/T9341-2008. The tensile test sample bar specification is 160mm × 10mm × 4mm, the test rate is 2mm/min, the test environment is room temperature, 3 sample bars are tested and the average value is taken. Specific comparative data are shown in table 1 below:
TABLE 1
Tensile Strength (MPa) Flexural Strength (MPa)
Example 1 27.4 1067
Example 2 29.3 1209
Example 3 24.3 1231
Comparative example 1 19.3 757
Comparative example 2 20.8 896
Comparative example 3 23.8 909
As can be seen from table 1 above, the invention provides a preparation method of an additive for improving the performance of a plastic shell of an instrument panel, and when the additive is used for processing and manufacturing plastics, the additive can obviously improve the mechanical performance of the plastics, improves the quality of plastic products, widens the application range of the plastics, and has great popularization and application values.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the present invention is not limited to the illustrated embodiments, and all the modifications and equivalents of the embodiments may be made without departing from the spirit of the present invention.

Claims (6)

1. A preparation method of an additive for improving the performance of a plastic shell of an instrument panel is characterized by comprising the following steps:
(1) preparation of mixed solution A:
firstly, putting betaine and sodium dodecyl benzene sulfonate into a stirring tank together according to the weight ratio of 1: 3-5, stirring and mixing uniformly, then putting tartaric acid and deionized water into the stirring tank together according to the weight ratio of 1: 30-40, stirring and mixing uniformly at the temperature of 60-80 ℃, adding a silane coupling agent into the stirring tank, and stirring and mixing uniformly at the temperature of 50-60 ℃ to obtain a mixed solution A for later use;
(2) preparing nano zinc oxide dispersion liquid:
putting the nano zinc oxide and absolute ethyl alcohol into a single-neck flask together according to the weight volume ratio of 1g: 40-50 mL, and performing dispersion treatment for 1-2 hours under the ultrasonic condition to obtain a nano zinc oxide dispersion liquid for later use;
(3) preparation of mixed solution B:
injecting the nano zinc oxide dispersion liquid obtained in the step (2) into the mixed liquid A obtained in the step (1), uniformly stirring at 90-96 ℃, putting polyvinylpyrrolidone and polyvinyl alcohol into a stirring tank together according to the weight ratio of 1: 3-5, and continuously uniformly stirring at 90-96 ℃ to obtain a mixed liquid B for later use;
(4) preparation of mixed powder:
uniformly mixing lanthanum carbonate and cerium nitrate according to the weight ratio of 1: 1-2, placing the mixture in a low-energy proton irradiation box for proton irradiation treatment, placing the mixture in a bead mill for grinding after 30-40 min, and obtaining mixed powder for later use;
(5) and (3) preparing a finished product:
uniformly mixing the mixed powder obtained in the step (4) and the mixed liquid B obtained in the step (3) according to the weight-volume ratio of 1g: 29-39 mL, putting the mixture into a crucible, heating the mixture to 500-600 ℃, immersing an ultrasonic probe into a position which is about 5-8 cm below the liquid level of the mixed liquid B obtained in the step (3) under the condition of heat preservation, performing ultrasonic treatment, and communicating a direct-current magnetic field for 3-5 hours.
2. The preparation method of the additive for improving the performance of the plastic shell of the instrument panel according to claim 1, wherein the total weight of the betaine and the sodium dodecyl benzene sulfonate in the step (1) is 20-26% of the total weight of the tartaric acid and the deionized water, and the weight of the silane coupling agent is 3-5% of the total weight of the tartaric acid and the deionized water.
3. The preparation method of the additive for improving the performance of the plastic shell of the instrument panel according to claim 1, wherein the ultrasonic frequency during the ultrasonic dispersion treatment in the step (2) is 30-80 kHz.
4. The preparation method of the additive for improving the performance of the plastic shell of the instrument panel according to claim 1, wherein the injection amount of the nano zinc oxide dispersion liquid in the step (3) is 5-5.6% of the mixed liquid A, and the total weight of the polyvinylpyrrolidone and the polyvinyl alcohol is 2-2.6% of the total weight of the mixed liquid A.
5. The method for preparing the additive for improving the performance of the plastic shell of the instrument panel according to claim 1, wherein the parameters of the proton irradiation in the step (4) are as follows: the proton energy is 2-3 MeV, and the proton injection is 7-9 × 1010p/cm2。
6. The preparation method of the additive for improving the performance of the plastic shell of the instrument panel according to claim 1, wherein the ultrasonic treatment in the step (5) has a frequency of 20 to 24kHz and a magnetic field power of 900 to 1000W.
CN202011078794.5A 2020-10-10 2020-10-10 Preparation method of additive for improving performance of plastic shell of instrument panel Withdrawn CN112250904A (en)

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Application publication date: 20210122