CN117964985A - Preparation method of wear-resistant high-strength plastic - Google Patents

Preparation method of wear-resistant high-strength plastic Download PDF

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CN117964985A
CN117964985A CN202311737175.6A CN202311737175A CN117964985A CN 117964985 A CN117964985 A CN 117964985A CN 202311737175 A CN202311737175 A CN 202311737175A CN 117964985 A CN117964985 A CN 117964985A
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pyrrole
mass
temperature
mass ratio
stirring
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周洪
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Suzhou Sairong Architectural Decoration Engineering Co ltd
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Abstract

The invention discloses a preparation method of wear-resistant high-strength plastic, and relates to the technical field of plastics. The invention firstly prepares the matting agent from 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and p-hydroxybenzaldehyde, builds a micro-nano rough plane on the surface of plastic through a conical protuberance and porous microsphere fibrous structure on the surface, enhances multiple reflection of light rays, and has a matting effect through the synergistic effect with a light absorption structure; after preparing elastic polystyrene from N-allyl maleimide, styrene and 1, 5-hexadiene, reacting with a delustrant to prepare an impact-resistant base material, and enabling the plastic to have an impact-resistant effect through the yielding deformation effect of a soft phase and the rigid supporting effect of a hard phase of the elastic polystyrene, the dispersion effect and the common stress effect of the delustrant; the impact-resistant base material is mixed with other additives to prepare the wear-resistant high-strength plastic. The plastic prepared by the invention has extinction and impact resistance effects.

Description

Preparation method of wear-resistant high-strength plastic
Technical Field
The invention relates to the technical field of plastics, in particular to a preparation method of wear-resistant high-strength plastics.
Background
The plastic is used as an indispensable synthetic material in the production and life of people, the yield is increased day by day, and the plastic brings convenience to the life of people. Polystyrene plastic refers to a plastic containing styrene in a macromolecular chain, and is one of the most commonly used plastics at present. The polystyrene has the structural characteristics that the main chain of the macromolecule is a saturated hydrocarbon polymer, and the lateral group is a benzene ring with large volume, so that the polystyrene has good electrical property, chemical property, rigidity, dimensional stability and higher hardness, and the strength and the wear resistance of the polystyrene can be improved by adding fibrous or other shaped materials (such as glass fiber, polyester fiber, graphite, silicate and the like) so that the polystyrene is more durable. However, the rigid and hard properties of polystyrene lead to brittle fracture under external stress, which in turn affects the service life.
The polystyrene has higher surface glossiness, and can reflect light, so that glare is generated, the glare can influence the aesthetic degree and the visual experience of plastic products, and meanwhile, in recent years, low-reflection matte and extinction products are increasingly favored by consumers; at the same time, in certain special cases, certain extinction requirements are also imposed on the surface gloss of the product for aesthetic and technical requirements.
Disclosure of Invention
The invention aims to provide wear-resistant high-strength plastic and a preparation method thereof, which are used for solving the problems in the prior art.
In order to solve the technical problems, the invention provides the following technical scheme:
The wear-resistant high-strength plastic is prepared by mixing an impact-resistant base material and other additives; the impact-resistant base material is prepared from a delustering agent and elastic polystyrene.
Furthermore, the delustering agent is prepared by spinning, etching and shearing pyrrole polyester to prepare delustering short fibers and then reacting the delustering short fibers with p-hydroxybenzaldehyde.
Further, the pyrrolyl polyester is prepared from 1H-pyrrole-3, 4-dicarboxylic acid and 1,2, 3-tribromopropane; the spinning, etching and shearing treatment comprises the following steps: and (3) after the pyrrole polyester is melt-spun to prepare pyrrole polyester monofilaments, the pyrrole polyester monofilaments are self-rotated and are assisted with tantalum ion irradiation, and then are immersed in an alkali alcohol mixed solution for a period of time, and the extinction short fibers are prepared after washing, drying and shearing.
Further, the elastic polystyrene is prepared from N-allyl maleimide, styrene, and 1, 5-hexadiene.
Further, the other additives comprise an antiwear agent, a flame retardant, a dispersant and an antioxidant; the wear-resistant agent is alumina powder; the flame retardant is triethyl phosphate; the dispersing agent is stearic acid; the antioxidant is phenyl tri (2, 4-di-tert-butyl) phosphite.
Further, the preparation method of the wear-resistant high-strength plastic comprises the following preparation steps:
(1) Mixing the pretreated short fibers, parahydroxyben-zaldehyde and pyridine according to a mass ratio of 1:1:15-1:3:25, reacting for 25-35 hours at a temperature of between 91 and 95 ℃ at 200-300 rpm, adding hydrochloric acid with a mass fraction of 38% which is 2-4 times that of the pretreated short fibers, performing ultrasonic treatment for 30-40 minutes at a frequency of 30-40 kHz and a temperature of between 95 and 105 ℃, sequentially washing for 3-5 times by ethanol and deionized water, and drying for 2-4 hours at 50-60 ℃ to obtain a matting agent;
(2) Mixing N-allyl maleimide, styrene, cyclohexane and butyllithium according to the mass ratio of 4:9:500:0.005-6:11:500:0.007, stirring at 200-300 rpm and 60-70 ℃ for 30-50 min, adding 1, 5-hexadiene with the mass of 1.1-1.5 times of the N-allyl maleimide, continuing to react for 60-90 min, adding styrene with the mass of 4-6 times of the N-allyl maleimide and butyllithium with the mass of 0.006 times of the N-allyl maleimide, reacting at 200-300 rpm and 75-85 ℃ for 30-50 min, adding absolute ethanol with the mass of 0.010-0.014 times of the N-allyl maleimide, stirring at 100-200 rpm for 10-20 min, and drying at 80-90 ℃ for 6-8 h to obtain elastic polystyrene;
(3) Mixing the elastic polystyrene and the flatting agent according to the mass ratio of 60:15-80:15, stirring for 6-12 hours at the temperature of 150-170 ℃ and the speed of 600-800 rpm, adding an additive mixture with the mass of 1-2 times of the flatting agent, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.05:0.6:3:0.03-0.15:0.8:5:0.03, stirring for 2-4 hours at the temperature of 100-200 rpm and the temperature of 190-210 ℃, and extruding and granulating at the temperature of 190-210 ℃ to obtain the wear-resistant high-strength plastic.
Further, the preparation method of the pretreated short fiber in the step (1) comprises the following steps: mixing the extinction short fibers, sodium acetate and deionized water according to a mass ratio of 1:0.7:9-1:1.4:18, reacting for 4-6 hours at the temperature of 95-105 ℃ and at the speed of 200-300 rpm, washing for 3-5 times by using the deionized water, and drying for 2-4 hours at the temperature of 45-55 ℃ to obtain the pretreated short fibers.
Further, the extinction short fiber method comprises the following steps: carrying out tantalum ion irradiation treatment on pyrrole-based polyester monofilament rotating at 30-50 rpm, wherein the irradiation density is 10 5~107 tracks/cm 2; immersing the irradiated pyrrole-based polyester monofilament in an alkali-alcohol mixed solution with the mass of 10-20 times of that of the pyrrole-based polyester monofilament for 10-20 min, washing with deionized water until the pH of a washing solution is 6-7, drying at room temperature for 12h, and shearing to obtain the extinction short fiber with the length of 3-15 mm, wherein the mass ratio of 10% sodium hydroxide solution to methanol in the alkali-alcohol mixed solution is 1:1.
Further, the method for preparing the pyrrole-based polyester monofilament comprises the following steps: and (3) melt spinning the pyrrole-based polyester at the spinning speed of 800-1000 m/min and at the temperature of 270-280 ℃, and side blowing, cooling and solidifying at the air speed of 0.9-1.3 m/s and the temperature of 10-20 ℃ for 25-35 min to obtain the pyrrole-based polyester monofilament.
Further, the pyrrole-based polyester method comprises the following steps: mixing 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and N, N-dimethylformamide according to a mass ratio of 2.5:2:10-3.5:3:10, stirring for 10-20 min at 150-250 rpm, adding tetramethyl guanidine with a mass 1.1-1.3 times that of 2, 4-dibromo-5-hydroxybenzaldehyde, continuously stirring for 12-24H, adding ethyl acetate until precipitation is complete, filtering, and vacuum drying for 12-18H at-0.08 MPa and 60-70 ℃ to obtain the pyrrolyl polyester.
Compared with the prior art, the invention has the following beneficial effects:
The invention prepares the anti-impact base material by the delustering agent and the elastic polystyrene, and then the anti-impact base material is mixed with other additives to prepare the wear-resistant high-strength plastic, which has the delustering and anti-impact effects.
Firstly, a delustering agent is prepared from 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and p-hydroxybenzaldehyde; after carboxyl in 1H-pyrrole-3, 4-dicarboxylic acid and bromine in 1,2, 3-tribromopropane are condensed, a pyrrole-based polyester monofilament is obtained by spinning, tantalum ion irradiation is assisted in the self-rotation process of the pyrrole-based polyester monofilament, etching is carried out on the surface of the pyrrole-based polyester monofilament through alkali alcohol mixed solution after an etchable latent track is generated on the surface of the pyrrole-based polyester monofilament, irregular conical protrusions are formed on the surface of the fiber, extinction short fibers are obtained through shearing, the short fibers can be dispersed in plastics and randomly distributed and are mutually overlapped, a micro-nano rough plane is formed by cooperation of the short fibers and the irregular conical protrusions on the surface of the short fibers, and diffuse reflection of the surface of the plastics is increased, so that the plastics has an extinction effect; pyrrole in the extinction short fiber and formaldehyde in the parahydroxyben-zaldehyde form porphyrin structure, can absorb visible light, and parahydroxyben-zaldehyde self-polymerization forms porous microspheres simultaneously, further improves fiber surface unevenness, and when enhancing light diffuse reflection, the porous structure of the microspheres enhances multiple reflection of light to further enhance the extinction effect of plastics.
Secondly, the elastic polystyrene is prepared from N-allyl maleimide, styrene and 1, 5-hexadiene; the elastic polystyrene is prepared by polymerizing N-allyl maleimide, styrene and 1, 5-hexadiene through double bonds, a cross-linked network structure which takes the polystyrene and the N-allyl maleimide as hard phases and takes the poly 1, 5-hexadiene as soft phases is formed, and the impact resistance effect of the plastic can be improved through the yielding deformation effect of the soft phases and the rigid supporting effect of the hard phases; the maleimide in the elastic polystyrene reacts with furan in the flatting agent to form DA bond, so that the impact-resistant base material is prepared, the stress is transmitted to the fibrous flatting agent through the elastic polystyrene under the action of external stress, the stress is diffused to the whole material through the flatting agent, meanwhile, the rough surface and the complex space structure of the flatting agent cooperate with each other through the mechanical meshing force of the micro pits and the plastic and the DA bond, the binding force between the flatting agent and the base body is improved, and the impact-resistant effect of the plastic is further improved.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to more clearly illustrate the method provided by the invention, the following examples are used for describing the detailed description, and the method for testing each index of the wear-resistant high-strength plastic manufactured in the following examples is as follows:
Extinction effect: the gloss was measured according to astm d523 using the same size examples and comparative examples;
impact resistance effect: the examples and the comparative examples were subjected to pressure maintaining for 10 minutes at an injection temperature of 180 degrees centigrade, a mold temperature of 60 degrees centigrade and a pressure of 5GPa to prepare notched impact bars having a length of 80 mm, a width of 10 mm and a thickness of 2 mm; notched impact bars were tested for impact strength according to GB/T1843.
Example 1
(1) Mixing 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and N, N-dimethylformamide according to a mass ratio of 2.5:2:10, stirring for 10min at 150rpm, adding tetramethyl guanidine with a mass 1.1 times that of 2, 4-dibromo-5-hydroxybenzaldehyde, continuously stirring for 12H, adding ethyl acetate until precipitation is complete, filtering, and vacuum drying at-0.08 MPa and 60 ℃ for 12H to obtain pyrrole-based polyester; melt spinning pyrrole-based polyester at a spinning speed of 800m/min and a temperature of 270 ℃, and side blowing cooling and solidifying for 25min at a wind speed of 0.9m/s and a temperature of 10 ℃ to obtain pyrrole-based polyester monofilaments;
(2) Carrying out tantalum ion irradiation treatment on pyrrole-based polyester monofilament rotating at 30rpm, wherein the irradiation density is 10 5 tracks/cm 2; immersing the irradiated pyrrole-based polyester monofilament in an alkali-alcohol mixed solution with the mass of 10 times of that of the pyrrole-based polyester monofilament for 10min, washing the pyrrole-based polyester monofilament with deionized water until the pH of a washing solution is 6, drying the pyrrole-based polyester monofilament at room temperature for 12h, and shearing to obtain a extinction short fiber with the length of 3mm, wherein the mass ratio of a 10% sodium hydroxide solution to methanol in the alkali-alcohol mixed solution is 1:1;
(3) Mixing the extinction short fiber, sodium acetate and deionized water according to the mass ratio of 1:0.7:9, reacting for 4 hours at 95 ℃ and 200rpm, washing for 3 times by using the deionized water, and drying for 2 hours at 45 ℃ to obtain the pretreatment short fiber; mixing the pretreated short fibers, p-hydroxybenzaldehyde and pyridine according to the mass ratio of 1:1:15, reacting for 25 hours at 200rpm and 91 ℃, adding hydrochloric acid with the mass fraction of 38% which is 2 times that of the pretreated short fibers, carrying out ultrasonic treatment for 30 minutes at the frequency of 30kHz and 95 ℃, washing for 3 times by ethanol and deionized water in sequence, and drying for 2 hours at 50 ℃ to obtain a matting agent;
(4) Mixing N-allyl maleimide, styrene, cyclohexane and butyllithium according to the mass ratio of 4:9:500:0.005, stirring for 30min at 200rpm and 60 ℃, adding 1, 5-hexadiene with the mass of 1.1 times of the N-allyl maleimide, continuing to react for 60min, adding styrene with the mass of 4 times of the N-allyl maleimide and butyllithium with the mass of 0.006 times of the N-allyl maleimide, reacting for 30min at 200rpm and 75 ℃, adding absolute ethanol with the mass of 0.01 times of the N-allyl maleimide, stirring for 10min at 100rpm, and drying for 6h at 80 ℃ to obtain the elastic polystyrene;
(5) Mixing the elastic polystyrene and the flatting agent according to the mass ratio of 60:15, stirring for 6 hours at 150 ℃ and 600rpm, adding an additive mixture with the mass ratio of 1 time of the flatting agent, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.05:0.6:3:0.03, stirring for 2 hours at 100rpm and 190 ℃, and extruding and granulating at 190-210 ℃ to obtain the wear-resistant high-strength plastic.
Example 2
(1) Mixing 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and N, N-dimethylformamide according to a mass ratio of 3:2.5:10, stirring for 15min at 200rpm, adding tetramethyl guanidine with a mass 1.2 times that of 2, 4-dibromo-5-hydroxybenzaldehyde, continuously stirring for 18H, adding ethyl acetate until precipitation is complete, filtering, and vacuum drying at-0.08 MPa and 65 ℃ for 15H to obtain pyrrole-based polyester; melt spinning pyrrole polyester at a spinning speed of 900m/min and at 275 ℃, and cooling and solidifying for 30min at a side blowing air speed of 1.1m/s and at a temperature of 15 ℃ to obtain pyrrole polyester monofilaments;
(2) Carrying out tantalum ion irradiation treatment on pyrrole-based polyester monofilament rotating at 40rpm, wherein the irradiation density is 10 6 tracks/cm 2; immersing the irradiated pyrrole-based polyester monofilament in an alkaline alcohol mixed solution with the mass of 15 times that of the pyrrole-based polyester monofilament for 15min, washing the pyrrole-based polyester monofilament with deionized water until the pH value of a washing solution is 6.5, drying the pyrrole-based polyester monofilament at room temperature for 12h, and shearing to obtain the extinction short fiber with the length of 9mm, wherein the mass ratio of a 10% sodium hydroxide solution to methanol in the alkaline alcohol mixed solution is 1:1;
(3) Mixing the extinction short fiber, sodium acetate and deionized water according to the mass ratio of 1:1.05:13.5, reacting for 5 hours at 100 ℃, washing for 4 times by using the deionized water, and drying for 3 hours at 50 ℃ to obtain the pretreated short fiber; mixing the pretreated short fibers, p-hydroxybenzaldehyde and pyridine according to the mass ratio of 1:2:20, reacting for 30 hours at the temperature of 93 ℃ at 250rpm, adding hydrochloric acid with the mass fraction of 38% which is 3 times that of the pretreated short fibers, carrying out ultrasonic treatment for 35 minutes at the frequency of 35kHz and the temperature of 100 ℃, washing for 4 times by ethanol and deionized water in sequence, and drying for 3 hours at the temperature of 55 ℃ to obtain a delustering agent;
(4) Mixing N-allyl maleimide, styrene, cyclohexane and butyllithium according to the mass ratio of 5:10:500:0.006, stirring for 40min at the speed of 250rpm and the temperature of 65 ℃, adding 1, 5-hexadiene with the mass of 1.3 times of the N-allyl maleimide, continuing to react for 75min, adding styrene with the mass of 5 times of the N-allyl maleimide and butyllithium with the mass of 0.006 times of the N-allyl maleimide, reacting for 40min at the speed of 250rpm and the temperature of 80 ℃, adding absolute ethyl alcohol with the mass of 0.012 times of the N-allyl maleimide, stirring for 15min at the speed of 150rpm, and drying for 7h at the temperature of 85 ℃ to obtain the elastic polystyrene;
(5) Mixing the elastic polystyrene and the flatting agent according to the mass ratio of 70:15, stirring for 9 hours at 160 ℃ and 700rpm, adding an additive mixture with the mass 1.5 times of that of the flatting agent, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.1:0.7:4:0.03, stirring for 3 hours at 150rpm and 200 ℃, and extruding and granulating at 190-210 ℃ to obtain the wear-resistant high-strength plastic.
Example 3
(1) Mixing 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and N, N-dimethylformamide according to a mass ratio of 3.5:3:10, stirring for 20min at 250rpm, adding tetramethyl guanidine with a mass 1.3 times that of 2, 4-dibromo-5-hydroxybenzaldehyde, continuously stirring for 24H, adding ethyl acetate until precipitation is complete, filtering, and vacuum drying at-0.08 MPa and 70 ℃ for 18H to obtain pyrrole-based polyester; melt spinning pyrrole polyester at a spinning speed of 1000m/min and a temperature of 280 ℃, and side blowing cooling and solidifying for 35min at a wind speed of 1.3m/s and a temperature of 20 ℃ to obtain pyrrole polyester monofilaments;
(2) Carrying out tantalum ion irradiation treatment on pyrrole-based polyester monofilament rotating at 50rpm, wherein the irradiation density is 10 7 tracks/cm 2; immersing the irradiated pyrrole-based polyester monofilament in an alkaline alcohol mixed solution with the mass of 20 times of that of the pyrrole-based polyester monofilament for 20min, washing the pyrrole-based polyester monofilament with deionized water until the pH of a washing solution is 7, drying the pyrrole-based polyester monofilament at room temperature for 12h, and shearing to obtain a extinction short fiber with the length of 15mm, wherein the mass ratio of a 10% sodium hydroxide solution to methanol in the alkaline alcohol mixed solution is 1:1;
(3) Mixing the extinction short fiber, sodium acetate and deionized water according to the mass ratio of 1:1.4:18, reacting for 6 hours at 105 ℃, washing for 5 times by using the deionized water, and drying for 4 hours at 55 ℃ to obtain the pretreatment short fiber; mixing the pretreated short fibers, p-hydroxybenzaldehyde and pyridine according to the mass ratio of 1:3:25, reacting for 35 hours at the temperature of 95 ℃ at 300rpm, adding hydrochloric acid with the mass fraction of 38% which is 4 times that of the pretreated short fibers, carrying out ultrasonic treatment for 40 minutes at the frequency of 40kHz and the temperature of 105 ℃, washing for 5 times by ethanol and deionized water in sequence, and drying for 4 hours at the temperature of 60 ℃ to obtain a delustering agent;
(4) Mixing N-allyl maleimide, styrene, cyclohexane and butyllithium according to a mass ratio of 6:11:500:0.007, stirring at 300rpm and 70 ℃ for 50min, adding 1, 5-hexadiene with the mass of 1.5 times of the N-allyl maleimide, continuing to react for 90min, adding styrene with the mass of 6 times of the N-allyl maleimide and butyllithium with the mass of 0.006 times of the N-allyl maleimide, reacting at 300rpm and 85 ℃ for 50min, adding absolute ethanol with the mass of 0.014 times of the N-allyl maleimide, stirring at 200rpm for 20min, and drying at 90 ℃ for 8h to obtain the elastic polystyrene;
(5) Mixing the elastic polystyrene and the flatting agent according to the mass ratio of 80:15, stirring at 170 ℃ and 800rpm for 12 hours, adding an additive mixture with the mass of 2 times of that of the flatting agent, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.15:0.8:5:0.03, stirring at 200rpm and 210 ℃ for 4 hours, and extruding and granulating at 190-210 ℃ to obtain the wear-resistant high-strength plastic.
Comparative example 1
Comparative example 1 differs from example 2 in that step (2) is different, and step (2) is changed to: the pyrrole-based polyester monofilament is sheared to prepare the extinction short fiber with the length of 9 mm. The rest of the procedure is the same as in example 2.
Comparative example 2
Comparative example 2 differs from example 2 in that step (3) was omitted, and step (5) was changed to: mixing the elastic polystyrene and the extinction short fiber according to the mass ratio of 70:15, stirring for 9 hours at 160 ℃ and 700rpm, adding an additive mixture with the mass 1.5 times of that of the extinction agent, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.1:0.7:4:0.03, stirring for 3 hours at 150rpm and 200 ℃, and extruding and granulating at 190-210 ℃ to obtain the wear-resistant high-strength plastic. The rest of the procedure is the same as in example 2.
Comparative example 3
Comparative example 3 differs from example 2 in that step (4) was changed to: mixing N-allyl maleimide, styrene, cyclohexane and butyllithium according to a mass ratio of 5:10:500:0.006, stirring at 250rpm and 65 ℃ for 115min, adding styrene with 5 times of the mass of the N-allyl maleimide and butyllithium with 0.006 times of the mass of the N-allyl maleimide, reacting at 250rpm and 80 ℃ for 40min, adding absolute ethyl alcohol with 0.012 times of the mass of the N-allyl maleimide, stirring at 150rpm for 15min, and drying at 85 ℃ for 7h to obtain the elastic polystyrene. The rest of the procedure is the same as in example 2.
Comparative example 4
Comparative example 4 differs from example 2 in that steps (1) to (3) are not present, and step (5) is changed to: after stirring the elastic polystyrene for 9 hours at 160 ℃ and 700rpm, adding an additive mixture with the mass of 0.32 times that of the elastic polystyrene, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.1:0.7:4:0.03, stirring for 3 hours at 150rpm and 200 ℃, and extruding and granulating at 190-210 ℃ to obtain the wear-resistant high-strength plastic. The rest of the procedure is the same as in example 2.
Comparative example 5
Comparative example 5 differs from example 2 in that step (4) was changed to: mixing styrene, cyclohexane and butyllithium according to a mass ratio of 10:500:0.006, stirring at 250rpm and 65 ℃ for 40min, adding 1, 5-hexadiene with the mass of 0.65 times of the styrene, continuing to react for 75min, adding styrene with the mass of 2.5 times of the styrene and butyllithium with the mass of 0.003 times of the styrene, reacting at 250rpm and 80 ℃ for 40min, adding absolute ethyl alcohol with the mass of 0.06 times of the styrene, stirring at 150rpm for 15min, and drying at 85 ℃ for 7h to obtain the elastic polystyrene. The rest of the procedure is the same as in example 2.
Effect example
The following table 1 gives the results of the performance analysis of the abrasion resistant high strength plastics using examples 1 to 3 of the present invention and comparative examples 1 to 5.
TABLE 1
As can be seen from the comparison of the gloss data of the examples and the comparative examples in the table 1, the extinction effect of the plastics added with the matting agent is obviously improved, after tantalum ion irradiation is assisted in the self-rotation process of the pyrrole-based polyester monofilament, extinction short fibers with irregular conical protrusions on the surfaces are prepared through etching and shearing treatment of alkali-alcohol mixed solution, micro-nano rough surfaces can be formed by disordered dispersion in the plastics, diffuse reflection of light is increased, the plastics have extinction effect, p-hydroxybenzaldehyde and the extinction short fibers further react to generate porphyrin structures, meanwhile, porous microspheres are formed by self-polymerization, the unevenness of the plastics is further improved by compounding the porous microspheres and linear fibers, and the extinction effect of the plastics is synergistically enhanced by enhancing the light absorption of the porphyrin structures and the multiple reflection of the light by the porous structures of the microspheres; as can be seen from the comparison of the notched impact strength data of the examples and the comparative examples in Table 1, the plastic has good impact resistance, the elastic polystyrene is prepared by polymerizing N-allyl maleimide, styrene and 1, 5-hexadiene, the impact resistance of the plastic is improved by the yielding deformation effect of poly-1, 5-hexadiene soft phase and the rigid supporting effect of the polystyrene and poly-N-allyl maleimide, the matting agent is dispersed into the elastic polystyrene, the stress is transferred to the matting agent after the elastic polystyrene is stressed, the stress is dispersed and the whole material is utilized to further improve the impact resistance of the plastic, and in addition, the chemical crosslinking of the elastic polystyrene and the matting agent through DA bond and the rough surface and complex space structure of the matting agent improve the binding force between the matting agent and a matrix through the mechanical meshing force of micro pits and the plastic, and the impact resistance of the plastic is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (1)

1. The preparation method of the wear-resistant high-strength plastic is characterized by comprising the following preparation steps:
(1) Mixing 1H-pyrrole-3, 4-dicarboxylic acid, 1,2, 3-tribromopropane and N, N-dimethylformamide according to a mass ratio of 3:2.5:10, stirring for 15min at 200rpm, adding tetramethyl guanidine with a mass 1.2 times that of 2, 4-dibromo-5-hydroxybenzaldehyde, continuously stirring for 18H, adding ethyl acetate until precipitation is complete, filtering, and vacuum drying at-0.08 MPa and 65 ℃ for 15H to obtain pyrrole-based polyester; melt spinning pyrrole polyester at a spinning speed of 900m/min and at 275 ℃, and cooling and solidifying for 30min at a side blowing air speed of 1.1m/s and at a temperature of 15 ℃ to obtain pyrrole polyester monofilaments;
(2) Carrying out tantalum ion irradiation treatment on pyrrole-based polyester monofilament rotating at 40rpm, wherein the irradiation density is 10 6 tracks/cm 2; immersing the irradiated pyrrole-based polyester monofilament in an alkaline alcohol mixed solution with the mass of 15 times that of the pyrrole-based polyester monofilament for 15min, washing the pyrrole-based polyester monofilament with deionized water until the pH value of a washing solution is 6.5, drying the pyrrole-based polyester monofilament at room temperature for 12h, and shearing to obtain the extinction short fiber with the length of 9mm, wherein the mass ratio of a 10% sodium hydroxide solution to methanol in the alkaline alcohol mixed solution is 1:1;
(3) Mixing the extinction short fiber, sodium acetate and deionized water according to the mass ratio of 1:1.05:13.5, reacting for 5 hours at 100 ℃, washing for 4 times by using the deionized water, and drying for 3 hours at 50 ℃ to obtain the pretreated short fiber; mixing the pretreated short fibers, p-hydroxybenzaldehyde and pyridine according to the mass ratio of 1:2:20, reacting for 30 hours at the temperature of 93 ℃ at 250rpm, adding hydrochloric acid with the mass fraction of 38% which is 3 times that of the pretreated short fibers, carrying out ultrasonic treatment for 35 minutes at the frequency of 35kHz and the temperature of 100 ℃, washing for 4 times by ethanol and deionized water in sequence, and drying for 3 hours at the temperature of 55 ℃ to obtain a delustering agent;
(4) Mixing N-allyl maleimide, styrene, cyclohexane and butyllithium according to the mass ratio of 5:10:500:0.006, stirring for 40min at the speed of 250rpm and the temperature of 65 ℃, adding 1, 5-hexadiene with the mass of 1.3 times of the N-allyl maleimide, continuing to react for 75min, adding styrene with the mass of 5 times of the N-allyl maleimide and butyllithium with the mass of 0.006 times of the N-allyl maleimide, reacting for 40min at the speed of 250rpm and the temperature of 80 ℃, adding absolute ethyl alcohol with the mass of 0.012 times of the N-allyl maleimide, stirring for 15min at the speed of 150rpm, and drying for 7h at the temperature of 85 ℃ to obtain the elastic polystyrene;
(5) Mixing the elastic polystyrene and the flatting agent according to the mass ratio of 70:15, stirring for 9 hours at 160 ℃ and 700rpm, adding an additive mixture with the mass 1.5 times of that of the flatting agent, wherein the mass ratio of alumina powder, stearic acid, triethyl phosphate and phenyl tris (2, 4-di-tert-butyl) phosphite in the additive mixture is 0.1:0.7:4:0.03, stirring for 3 hours at 150rpm and 200 ℃, and extruding and granulating at 190-210 ℃ to obtain the wear-resistant high-strength plastic.
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CN114591554A (en) * 2022-03-11 2022-06-07 界首市锦丰塑业有限公司 Extinction master batch for plastics and preparation method thereof
CN114990898A (en) * 2022-06-09 2022-09-02 王正文 High-elasticity wear-resistant fabric and preparation method thereof

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JPH0725983B2 (en) * 1989-06-26 1995-03-22 住友ダウ株式会社 Thermoplastic resin composition
CN102304266B (en) * 2011-07-25 2014-04-02 宁波市青湖弹性体科技有限公司 Extinction type thermoplastic elastomer for preparation of wire and cable
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WO2020134495A1 (en) * 2018-12-27 2020-07-02 江苏恒力化纤股份有限公司 Complete extinction polyester drawing yarns and preparation method thereof
CN114591554A (en) * 2022-03-11 2022-06-07 界首市锦丰塑业有限公司 Extinction master batch for plastics and preparation method thereof
CN114990898A (en) * 2022-06-09 2022-09-02 王正文 High-elasticity wear-resistant fabric and preparation method thereof

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