CN111019313A - Corrosion-resistant engineering plastic and preparation method thereof - Google Patents
Corrosion-resistant engineering plastic and preparation method thereof Download PDFInfo
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- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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Abstract
The invention discloses a corrosion-resistant engineering plastic and a preparation method thereof, and the corrosion-resistant engineering plastic comprises the following raw materials, by weight, polyamide, polyaryletherketone, fluororesin, alkyd resin, chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, a composite anticorrosive agent, a nucleating agent, a defoaming agent, a reinforcing filler and a mineral essential oil organic solvent.
Description
Technical Field
The invention relates to the technical field of materials, in particular to corrosion-resistant engineering plastic and a preparation method thereof.
Background
The engineering plastic can be used as engineering material and can replace metal to manufacture plastic of machine parts and the like, the engineering plastic has excellent comprehensive performance, large rigidity, small creep, high mechanical strength, good heat resistance and good electrical insulation, can be used in harsh chemical and physical environments for a long time, can replace metal to be used as engineering structural material, but has higher price and smaller yield, and the performance characteristics of the engineering plastic are mainly as follows: compared with general plastic, the material has excellent heat resistance and cold resistance, has excellent mechanical performance in a wide temperature range, and is suitable for being used as a structural material; the corrosion resistance is good, the influence of the environment is small, and the durability is good; compared with metal materials, the method has the advantages of easy processing, high production efficiency, simplified procedure and cost saving; the material has good dimensional stability and electrical insulation; light weight, high specific strength, and excellent friction and wear resistance.
At present, when the engineering plastics are subjected to corrosion resistance treatment, most of the engineering plastics are directly mixed with polyformaldehyde to enhance the corrosion resistance of the engineering plastics, however, the engineering plastics can only realize oxidation resistance and cavitation resistance, but the microbial reproductive performance on the surface of the engineering plastics is poor, meanwhile, the polyformaldehyde is adopted to decompose and volatilize harmful gas easily in some engineering plastics with higher working environments, the environment is polluted and the human health is threatened, the corrosion resistance of the engineering plastics is obviously improved by adopting a non-toxic antioxidant reagent and adding an anticorrosive composite reagent, the aim of improving the corrosion resistance of the engineering plastics on the premise of not polluting the environment cannot be fulfilled, and the use of the engineering plastics is very unfavorable.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a corrosion-resistant engineering plastic and a preparation method thereof, and solves the problems that the existing engineering plastic corrosion-resistant method can only realize the oxidation resistance and cavitation resistance of the engineering plastic, but has poor inhibition on the microbial reproduction performance on the surface of the engineering plastic, meanwhile, polyformaldehyde is adopted to decompose and volatilize harmful gases easily in some engineering plastics with higher working environment, pollute the environment and threaten the health of people, the corrosion resistance of the engineering plastic can not be obviously improved by adopting a non-toxic antioxidant agent and adding a corrosion-resistant composite agent, and the aim of improving the corrosion resistance of the engineering plastic on the premise of not polluting the environment can not be fulfilled.
(II) technical scheme
The corrosion-resistant engineering plastic comprises, by weight, 5-10 parts of polyamide, 5-10 parts of polyaryletherketone, 10-20 parts of fluororesin, 10-20 parts of alkyd resin, 3-5 parts of chromium methacrylate chloride, 3-5 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 3-5 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1-3 parts of a composite preservative agent, 1-3 parts of a nucleating agent, 1-3 parts of a defoaming agent, 1-3 parts of a reinforcing filler and 3-5 parts of a mineral essential oil organic solvent.
Preferably, the raw materials comprise, by weight, 7 parts of polyamide, 7 parts of polyaryletherketone, 15 parts of fluororesin, 15 parts of alkyd resin, 4 parts of chromium chloride methacrylate, 4 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 4 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 2 parts of a composite preservative agent, 2 parts of a nucleating agent, 2 parts of a defoaming agent, 2 parts of a reinforcing filler and 4 parts of a mineral essential oil organic solvent.
Preferably, the raw materials comprise, by weight, 5 parts of polyamide, 5 parts of polyaryletherketone, 20 parts of fluororesin, 20 parts of alkyd resin, 3 parts of chromium chloride methacrylate, 3 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 3 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1 part of a composite preservative agent, 1 part of a nucleating agent, 1 part of a defoaming agent, 1 part of a reinforcing filler and 3 parts of a mineral essential oil organic solvent.
Preferably, the raw materials comprise, by weight, 10 parts of polyamide, 10 parts of polyaryletherketone, 10 parts of fluororesin, 10 parts of alkyd resin, 5 parts of chromium chloride methacrylate, 5 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 5 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 3 parts of a composite preservative agent, 3 parts of a nucleating agent, 3 parts of a defoaming agent, 3 parts of a reinforcing filler and 5 parts of a mineral essential oil organic solvent.
Preferably, the composite preservative agent is one or more of 3-chloro-4-iodopyridine, 2-chloroimidazole, 6-chlorohexylzinc bromide, 2-chloro-N-Fmoc-L-phenylalanine or 3-chloro-4-fluorophenylzinc iodide.
Preferably, the nucleating agent is one or the combination of two of diphenyl methylene sorbitol and polypropylene resin.
Preferably, the defoaming agent is one of emulsified silicone oil, a higher alcohol fatty acid ester compound or polyoxyethylene polyoxypropylene pentaerythritol ether.
Preferably, the reinforcing filler is one or more of talcum powder, bentonite, white carbon black or kaolin.
The invention also discloses a preparation method of the corrosion-resistant engineering plastic, which specifically comprises the following steps:
s1, selecting and weighing raw materials, namely, respectively weighing polyamide, polyaryletherketone, fluororesin, alkyd resin, chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, a composite preservative agent, a nucleating agent, a defoaming agent, a reinforcing filler and a mineral essential oil organic solvent in required weight parts by using batching equipment, and storing the weighed components by using storage equipment for later use;
s2, mixing of base materials: sequentially pouring the polyamide, the polyaryletherketone, the fluororesin and the alkyd resin which are measured in the step S1 into crushing and screening equipment, screening and collecting the polyamide, the polyaryletherketone, the fluororesin and the alkyd resin through a screen with 200 meshes after the polyamide, the polyaryletherketone, the fluororesin and the alkyd resin are fully crushed, pouring the collected polyamide, the polyaryletherketone, the fluororesin and the alkyd resin powder into mixing and stirring equipment, simultaneously adding the mineral essential oil organic solvent, and stirring for 20-30min at the rotation speed of 400-500r/min to obtain a mixed base material;
s3, preparing an anticorrosive modified base material, namely adding the chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, the composite anticorrosive agent and the reinforcing filler which are weighed in the step S1 into the mixed base material prepared in the step S2 respectively, starting a stirring mechanism to stir at the rotating speed of 500-600r/min for 30-40min, and fully mixing the anticorrosive agent and the base material to obtain the anticorrosive modified base material;
s4, preparation of engineering plastic slurry: respectively pouring the nucleating agent and the defoaming agent measured in the step S1 into the anticorrosion modified base material obtained in the step S3, and stirring at the rotating speed of 800-900r/min for 1-2h until the mixed material is pasty, thereby obtaining the engineering plastic slurry;
s5, forming of engineering plastics: and (5) extruding, cutting and granulating the engineering plastic slurry obtained in the step (S4) through a screw extruder to obtain the engineering plastic raw material.
(III) advantageous effects
The corrosion-resistant engineering plastic and the preparation method thereof have the advantages that the corrosion-resistant engineering plastic comprises, by weight, 5-10 parts of polyamide, 5-10 parts of polyaryletherketone, 10-20 parts of fluororesin, 10-20 parts of alkyd resin, 3-5 parts of chromium chloride methacrylate, 3-5 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 3-5 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1-3 parts of a composite preservative agent, 1-3 parts of a nucleating agent, 1-3 parts of a defoaming agent, 1-3 parts of a reinforcing filler and 3-5 parts of a mineral essential oil organic solvent, so that the corrosion resistance of the engineering plastic is obviously improved by adding a non-toxic antioxidant agent into the preservative composite agent, the corrosion-resistant engineering plastic is greatly improved on the premise of no environmental pollution, the corrosion resistance of the engineering plastic is improved, the aim of preventing the engineering plastic from being corroded, the engineering plastic from being healthily decomposed by using gases, and the environment pollution of the engineering plastic is avoided, and the engineering plastic is beneficial to the environment.
Drawings
FIG. 1 is a flow chart of the preparation method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 of the 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.
Referring to fig. 1, the embodiment of the present invention provides three technical solutions: the corrosion-resistant engineering plastic and the preparation method thereof specifically comprise the following embodiments:
example 1
The corrosion-resistant engineering plastic comprises, by weight, 7 parts of polyamide, 7 parts of polyaryletherketone, 15 parts of fluororesin, 15 parts of alkyd resin, 4 parts of chromium chloride methacrylate, 4 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) N-octadecyl propionate, 4 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 2 parts of a composite preservative reagent, 2 parts of a nucleating agent, 2 parts of a defoaming agent, 2 parts of a reinforcing filler and 4 parts of a mineral essential oil organic solvent, wherein the composite preservative reagent is a composition of 3-chloro-4-iodopyridine, 2-chloroimidazole, 6-chlorohexylzinc bromide, 2-chloro-N-Fmoc-L-phenylalanine and 3-chloro-4-fluorophenylzinc iodide, the nucleating agent is a composition of diphenylmethylene sorbitol and a polypropylene resin, the defoaming agent is silicone oil emulsion, and the reinforcing filler is a composition of talcum powder, bentonite, white carbon black and kaolin.
A preparation method of corrosion-resistant engineering plastic specifically comprises the following steps:
s1, selecting and weighing raw materials, namely, respectively weighing polyamide, polyaryletherketone, fluororesin, alkyd resin, chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, a composite preservative agent, a nucleating agent, a defoaming agent, a reinforcing filler and a mineral essential oil organic solvent in required weight parts by using batching equipment, and storing the weighed components by using storage equipment for later use;
s2, mixing of base materials: pouring the polyamide, polyaryletherketone, fluororesin and alkyd resin weighed in the step S1 into crushing and screening equipment in sequence, screening and collecting through a 180-mesh screen after full crushing, pouring the collected polyamide, polyaryletherketone, fluororesin and alkyd resin powder into mixing and stirring equipment, adding the mineral essential oil organic solvent, and stirring at the rotation speed of 450r/min for 25min to obtain a mixed base material;
s3, preparing the anticorrosive modified base material, namely adding the chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, the composite anticorrosive agent and the reinforcing filler which are weighed in the step S1 into the mixed base material prepared in the step S2 respectively, starting a stirring mechanism to stir at the rotating speed of 550r/min for 35min, and fully mixing the anticorrosive agent and the base material to obtain the anticorrosive modified base material;
s4, preparation of engineering plastic slurry: respectively pouring the nucleating agent and the defoaming agent measured in the step S1 into the anticorrosive modified base material obtained in the step S3, and stirring at the rotating speed of 850r/min for 1.5h until the mixed material is pasty, so as to obtain engineering plastic slurry;
s5, forming of engineering plastics: extruding, cutting and granulating the engineering plastic slurry obtained in the step S4 through a screw extruder to obtain an engineering plastic raw material
Example 2
The corrosion-resistant engineering plastic comprises, by weight, 5 parts of polyamide, 5 parts of polyaryletherketone, 20 parts of fluororesin, 20 parts of alkyd resin, 3 parts of chromium chloride methacrylate, 3 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 3 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1 part of a composite anticorrosive agent, 1 part of a nucleating agent, 1 part of a defoaming agent, 1 part of a reinforcing filler and 3 parts of a mineral essential oil organic solvent, wherein the composite anticorrosive agent is 3-chloro-4-iodopyridine, the nucleating agent is diphenylmethylene sorbitol, the defoaming agent is a high-alcohol fatty acid ester compound, and the reinforcing filler is talcum powder.
A preparation method of corrosion-resistant engineering plastic specifically comprises the following steps:
s1, selecting and weighing raw materials, namely, respectively weighing polyamide, polyaryletherketone, fluororesin, alkyd resin, chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, a composite preservative agent, a nucleating agent, a defoaming agent, a reinforcing filler and a mineral essential oil organic solvent in required weight parts by using batching equipment, and storing the weighed components by using storage equipment for later use;
s2, mixing of base materials: pouring the polyamide, polyaryletherketone, fluororesin and alkyd resin weighed in the step S1 into crushing and screening equipment in sequence, screening and collecting the polyamide, polyaryletherketone, fluororesin and alkyd resin powder through a 150-mesh screen after the polyamide, polyaryletherketone, fluororesin and alkyd resin powder are fully crushed, pouring the collected polyamide, polyaryletherketone, fluororesin and alkyd resin powder into mixing and stirring equipment, adding a mineral essential oil organic solvent, and stirring at the rotation speed of 400r/min for 20min to obtain a mixed base material;
s3, preparing the anticorrosive modified base material, namely adding the chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, the composite anticorrosive agent and the reinforcing filler which are weighed in the step S1 into the mixed base material prepared in the step S2 respectively, starting a stirring mechanism to stir at the rotating speed of 500r/min for 30min, and fully mixing the anticorrosive agent and the base material to obtain the anticorrosive modified base material;
s4, preparation of engineering plastic slurry: respectively pouring the nucleating agent and the defoaming agent measured in the step S1 into the anticorrosive modified base material obtained in the step S3, and stirring at the rotating speed of 800r/min for 1h until the mixed material is pasty, so as to obtain engineering plastic slurry;
s5, forming of engineering plastics: extruding, cutting and granulating the engineering plastic slurry obtained in the step S4 through a screw extruder to obtain an engineering plastic raw material
Example 3
The corrosion-resistant engineering plastic comprises, by weight, 10 parts of polyamide, 10 parts of polyaryletherketone, 10 parts of fluororesin, 10 parts of alkyd resin, 5 parts of chromium chloride methacrylate, 5 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 5 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 3 parts of a composite anticorrosive agent, 3 parts of a nucleating agent, 3 parts of a defoaming agent, 3 parts of a reinforcing filler and 5 parts of a mineral essential oil organic solvent, wherein the composite anticorrosive agent is 3-chloro-4-fluorophenyl zinc iodide, the nucleating agent is polypropylene resin, the defoaming agent is polyoxyethylene polyoxypropylene pentaerythritol ether, and the reinforcing filler is kaolin.
A preparation method of corrosion-resistant engineering plastic specifically comprises the following steps:
s1, selecting and weighing raw materials, namely, respectively weighing polyamide, polyaryletherketone, fluororesin, alkyd resin, chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, a composite preservative agent, a nucleating agent, a defoaming agent, a reinforcing filler and a mineral essential oil organic solvent in required weight parts by using batching equipment, and storing the weighed components by using storage equipment for later use;
s2, mixing of base materials: pouring the polyamide, polyaryletherketone, fluororesin and alkyd resin weighed in the step S1 into crushing and screening equipment in sequence, screening and collecting the polyamide, polyaryletherketone, fluororesin and alkyd resin powder through a 200-mesh screen after the polyamide, polyaryletherketone, fluororesin and alkyd resin powder are fully crushed, pouring the collected polyamide, polyaryletherketone, fluororesin and alkyd resin powder into mixing and stirring equipment, adding a mineral essential oil organic solvent, and stirring for 30min at the rotation speed of 500r/min to obtain a mixed base material;
s3, preparing the anticorrosive modified base material, namely adding the chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, the composite anticorrosive agent and the reinforcing filler which are weighed in the step S1 into the mixed base material prepared in the step S2 respectively, starting a stirring mechanism to stir at the rotating speed of 600r/min for 40min, and fully mixing the anticorrosive agent and the base material to obtain the anticorrosive modified base material;
s4, preparation of engineering plastic slurry: respectively pouring the nucleating agent and the defoaming agent measured in the step S1 into the anticorrosive modified base material obtained in the step S3, and stirring at the rotating speed of 900r/min for 2 hours until the mixed material is pasty, so as to obtain engineering plastic slurry;
s5, forming of engineering plastics: and (5) extruding, cutting and granulating the engineering plastic slurry obtained in the step (S4) through a screw extruder to obtain the engineering plastic raw material.
To sum up the above
The invention can obviously improve the corrosion resistance of the engineering plastic by adopting the nontoxic antioxidant agent and adding the anticorrosive composite agent, well achieves the aim of improving the corrosion resistance of the engineering plastic on the premise of not polluting the environment, not only can realize the antioxidation and cavitation prevention of the engineering plastic, but also improves the reproduction performance of inhibiting microorganisms on the surface of the engineering plastic, and simultaneously avoids the situations that the engineering plastic decomposes and volatilizes harmful gases in the use process, pollutes the environment and threatens the health of people, thereby being very beneficial to the use of the engineering plastic.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The corrosion-resistant engineering plastic is characterized by comprising, by weight, 5-10 parts of polyamide, 5-10 parts of polyaryletherketone, 10-20 parts of fluororesin, 10-20 parts of alkyd resin, 3-5 parts of chromium chloride methacrylate, 3-5 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 3-5 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1-3 parts of a composite preservative agent, 1-3 parts of a nucleating agent, 1-3 parts of a defoaming agent, 1-3 parts of a reinforcing filler and 3-5 parts of a mineral essential oil organic solvent.
2. The corrosion-resistant engineering plastic of claim 1, which is prepared from 7 parts by weight of polyamide, 7 parts by weight of polyaryletherketone, 15 parts by weight of fluororesin, 15 parts by weight of alkyd resin, 4 parts by weight of chromium chloride methacrylate, 4 parts by weight of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 4 parts by weight of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 2 parts by weight of a composite preservative agent, 2 parts by weight of a nucleating agent, 2 parts by weight of a defoaming agent, 2 parts by weight of a reinforcing filler and 4 parts by weight of an organic solvent of mineral essential oil.
3. The corrosion-resistant engineering plastic of claim 1, which is prepared from the following raw materials, by weight, 5 parts of polyamide, 5 parts of polyaryletherketone, 20 parts of fluororesin, 20 parts of alkyd resin, 3 parts of chromium chloride methacrylate, 3 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 3 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 1 part of a composite preservative agent, 1 part of a nucleating agent, 1 part of a defoaming agent, 1 part of a reinforcing filler and 3 parts of an organic solvent of mineral essential oil.
4. The corrosion-resistant engineering plastic of claim 1, which is prepared from the following raw materials, by weight, 10 parts of polyamide, 10 parts of polyaryletherketone, 10 parts of fluororesin, 10 parts of alkyd resin, 5 parts of chromium chloride methacrylate, 5 parts of β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 5 parts of 1,1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, 3 parts of a composite preservative agent, 3 parts of a nucleating agent, 3 parts of a defoaming agent, 3 parts of a reinforcing filler and 5 parts of a mineral essential oil organic solvent.
5. A corrosion-resistant engineering plastic according to any one of claims 1 to 4, wherein: the compound preservative reagent is one or a combination of more of 3-chloro-4-iodopyridine, 2-chloroimidazole, 6-chlorohexylzinc bromide, 2-chloro-N-Fmoc-L-phenylalanine or 3-chloro-4-fluorophenyl zinc iodide.
6. A corrosion-resistant engineering plastic according to any one of claims 1 to 4, wherein: the nucleating agent is one or the combination of two of diphenyl methylene sorbitol and polypropylene resin.
7. A corrosion-resistant engineering plastic according to any one of claims 1 to 4, wherein: the defoaming agent is one of emulsified silicone oil, a high-alcohol fatty acid ester compound or polyoxyethylene polyoxypropylene pentaerythritol ether.
8. A corrosion-resistant engineering plastic according to any one of claims 1 to 4, wherein: the reinforcing filler is one or a combination of more of talcum powder, bentonite, white carbon black or kaolin.
9. A method for preparing a corrosion-resistant engineering plastic according to any one of claims 1 to 4, wherein the corrosion-resistant engineering plastic comprises the following steps: the method specifically comprises the following steps:
s1, selecting and weighing raw materials, namely, respectively weighing polyamide, polyaryletherketone, fluororesin, alkyd resin, chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, a composite preservative agent, a nucleating agent, a defoaming agent, a reinforcing filler and a mineral essential oil organic solvent in required weight parts by using batching equipment, and storing the weighed components by using storage equipment for later use;
s2, mixing of base materials: sequentially pouring the polyamide, the polyaryletherketone, the fluororesin and the alkyd resin which are measured in the step S1 into crushing and screening equipment, screening and collecting the polyamide, the polyaryletherketone, the fluororesin and the alkyd resin through a screen with 200 meshes after the polyamide, the polyaryletherketone, the fluororesin and the alkyd resin are fully crushed, pouring the collected polyamide, the polyaryletherketone, the fluororesin and the alkyd resin powder into mixing and stirring equipment, simultaneously adding the mineral essential oil organic solvent, and stirring for 20-30min at the rotation speed of 400-500r/min to obtain a mixed base material;
s3, preparing an anticorrosive modified base material, namely adding the chromium chloride methacrylate, β - (3, 5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, 1, 3-tris (2-methyl-4-hydroxy-5-tert-butylphenyl) butane, the composite anticorrosive agent and the reinforcing filler which are weighed in the step S1 into the mixed base material prepared in the step S2 respectively, starting a stirring mechanism to stir at the rotating speed of 500-600r/min for 30-40min, and fully mixing the anticorrosive agent and the base material to obtain the anticorrosive modified base material;
s4, preparation of engineering plastic slurry: respectively pouring the nucleating agent and the defoaming agent measured in the step S1 into the anticorrosion modified base material obtained in the step S3, and stirring at the rotating speed of 800-900r/min for 1-2h until the mixed material is pasty, thereby obtaining the engineering plastic slurry;
s5, forming of engineering plastics: and (5) extruding, cutting and granulating the engineering plastic slurry obtained in the step (S4) through a screw extruder to obtain the engineering plastic raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911233085.7A CN111019313A (en) | 2019-12-05 | 2019-12-05 | Corrosion-resistant engineering plastic and preparation method thereof |
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| CN113214567A (en) * | 2021-01-20 | 2021-08-06 | 苏州工业园区宏图精密科技有限公司 | Corrosion-resistant plastic lower cover and manufacturing process thereof |
| CN114608669A (en) * | 2022-03-14 | 2022-06-10 | 温州荣际新能源有限公司 | Air flow sensor for improving intake temperature monitoring and process thereof |
| CN114685915A (en) * | 2020-12-29 | 2022-07-01 | 深圳市比亚德能源有限公司 | Corrosion-resistant engineering plastic and preparation method thereof |
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