CN110746712B - Anti-aging polystyrene plastic product - Google Patents
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Abstract
The invention relates to the field of plastic products, in particular to an anti-aging polystyrene plastic product; the invention discloses an anti-aging polystyrene plastic product, and discloses a preparation method of a sunlight aging resistant polystyrene product.
Description
Technical Field
The invention relates to the field of daily necessities, in particular to an anti-aging polystyrene plastic product.
Background
The polystyrene plastic is widely applied to optical instruments, chemical departments and daily necessities, and is used for manufacturing tea trays, sugar jars, soap boxes, cigarette cases, student rulers, combs and the like. Because of certain air permeability, the product can be made into a good food packaging material when being made into a film product.
CN200710156303.2 relates to an antistatic polystyrene composition, a preparation method thereof and a sheet prepared from the composition. The antistatic polystyrene composition is prepared by mixing the following components in percentage by weight: 65.0-85.0% of HIPS polystyrene, 8.0-28.0% of polyethylene glycol monomethylether methacrylate, 3.14-6.78% of hydroxyethyl methacrylate, 1.72-3.97% of sodium perchlorate, 0.0963-0.145% of azobisisobutyronitrile and 0.92-2.4% of coupling agent. The invention also discloses a sheet which is prepared by compounding 3 layers of materials, wherein the upper layer and the lower layer are the antistatic polystyrene composition prepared by the method.
CN201710511592.7 discloses an injection molding preparation method of a polystyrene plastic product with high simulated jade texture, which comprises the following steps: (1) selecting and drying polystyrene particles, and respectively weighing the polystyrene particles, an additive and a color master batch; (2) putting the materials into injection molding equipment, and adjusting the injection molding temperature to be 215-230 ℃ to melt the materials; (3) pouring the material into a mold after melting, adjusting the proportion of a back pressure valve to be 30-90% according to the shape of a runner of the mold, wherein the wider the runner of the mold is, the higher the back pressure is, and the temperature of the mold is 58-62 ℃; (4) and cooling and molding the material in a mold, and demolding to obtain a finished product.
CN201711448611.2 relates to an expanded polystyrene resin composition, a product and a preparation method thereof, wherein the expanded polystyrene resin composition comprises the following components: 95-105 parts by weight of polystyrene resin; 0.3-0.5 part by weight of antioxidant; 5-15 parts of a flame retardant; 10-15 parts of foaming agent; 15-25 parts of filler. The foamed polystyrene resin composition is prepared by an extrusion foaming method through an extrusion foaming device, the temperature of the melting section of the foamed polystyrene plastic product is 180-.
Because the current polystyrene resin molding technology is still deficient, the manufactured polystyrene plastic product is easy to age and become brittle under the dual action of light and heat, the service life of the polystyrene plastic product is greatly shortened after the polystyrene plastic product receives direct sunlight for a long time, and the requirement of practical use cannot be met.
Disclosure of Invention
In order to solve the problems, the invention provides an anti-aging polystyrene plastic product.
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg to 15Kg of ethyl methacrylate, 3Kg to 12Kg of polyethylene terephthalate, 0.5Kg to 4Kg of organic rare earth composite stabilizer, 2Kg to 7Kg of stearoylbenzoylmethane, 0.1Kg to 0.8Kg of potassium 4-acetylphenyl sulfate, 4Kg to 8Kg of silicon carbide fiber, 3Kg to 10Kg of titanium dioxide, 1Kg to 5Kg of calcium carbonate, 0.1Kg to 0.5Kg of coupling agent, 4Kg to 9Kg of toughening agent, and 2Kg to 7Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10-20min, and mixing to obtain mixture; then extruding and granulating by a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 220-250 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180-.
The organic rare earth composite stabilizer is prepared according to the following scheme:
4.5 to 9Kg of lanthanum carbonate is added into 50 to 80Kg of pure water, heated to 50 to 80 ℃, then 7.2 to 15Kg of styrene is slowly added into a reaction kettle under the condition of stirring, the reaction lasts for 60 to 120min after the dropwise addition, the pH value is measured to be alkalescent, then 0.01 to 0.1Kg of tetrabromobisphenol A diallyl ether and 0.2 to 3.2Kg of 9-vinyl anthracene are added, the temperature is controlled to be 60 to 80 ℃, 5 to 15Kg of ammonium persulfate aqueous solution with the mass percentage content of 10 to 30 percent is slowly dropped after the uniform stirring and mixing, the reaction lasts for 2 to 6 hours after the dropping, then 0.08 to 2.1Kg of cerium trifluoroacetate, 0.06 to 1.8Kg of disodium nickel ethylenediaminetetraacetate and 0.03 to 0.5Kg of tricyclohexylborane are added into the reaction kettle, the reaction lasts for 10 to 15 hours after the continuous stirring, and after the reaction is finished, drying the solvent, and crushing the solvent into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane or ethyl silicate or 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer or acrylonitrile-butadiene-styrene copolymer or tetrabromobisphenol A diallyl ether-butadiene-styrene terpolymer.
The lubricant is barium stearate or zinc stearate or magnesium stearate.
The invention discloses an anti-aging polystyrene plastic product, and discloses a preparation method of a sunlight aging resistant polystyrene product.
And the functional group of the surface layer polymer formed by polymerizing tetrabromobisphenol A diallyl ether and 9-vinyl anthracene has a more complex polymerization crosslinking structure and stronger binding force, improves the compounding effect of the coated lanthanum carbonate and polystyrene, ensures that the lanthanum carbonate is uniformly distributed around polystyrene particles, has strong binding force and is difficult to separate out, and ensures the long-term effectiveness of the stabilizer. Because the copolymers formed contain vinyl-aromatic groups, the risk of sticking or of progressive blockage at the extruder outlet is low and the copolymers formed are particularly suitable as molding compounds for electrical or heat-resistant applications.
Drawings
FIG. 1 is a Fourier infrared spectrum of a sample of the organic rare earth composite stabilizer prepared in example 2:
as can be seen from FIG. 1, an absorption peak of hydrocarbon antisymmetric stretching vibration exists near 3021cm-1, an absorption peak of hydrocarbon stretching vibration exists near 2933cm-1, and an absorption peak of benzene ring skeleton exists near 1610/1451/1379cm-1, indicating that styrene participates in the reaction; an absorption peak of carbonate ion antisymmetric stretching vibration exists near 1451cm < -1 >, an absorption peak of carbonate out-of-plane bending vibration exists near 887cm < -1 >, and an absorption peak of carbonate in-plane bending vibration exists near 699cm < -1 >, which indicates that lanthanum carbonate participates in the reaction; an absorption peak of sulfate ions exists near 1078cm < -1 >, which indicates that the ammonium persulfate participates in the reaction; an absorption peak of fluorocarbon exists near 1248/1186cm < -1 >, which indicates that cerium trifluoroacetate participates in the reaction; an absorption peak of a carbon-nitrogen single bond exists near 1037cm & lt-1 & gt, which indicates that the ethylene diamine tetraacetic acid nickel disodium salt participates in the reaction; an ether absorption peak exists near 1122cm-1, which indicates that tetrabromobisphenol A diallyl ether participates in the reaction; almost no absorption peak is generated near 1649cm-1, which indicates that carbon-carbon double bonds are all involved in polymerization.
Detailed Description
The invention is further illustrated by the following specific examples:
in the specific embodiment of the invention, the impact resistance of a sample is prepared into a notched impact sample strip according to the standard KGB/T1043-93, and the sample strip is placed on a pendulum type simple straight beam impact testing machine for impact performance test after being placed for 24 hours for eliminating the stress of the sample strip; the weather resistance test adopts that the glass is placed in an ultraviolet light artificial accelerated ageing oven and is irradiated for 360 hours under the irradiation wavelength of 340 nm, the illumination temperature of 60 +/-5 ℃ and the relative humidity of 50 +/-5 percent, and the irradiation intensity is 0.56W/m 2.
Example 1
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing well to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 4.5Kg of lanthanum carbonate into 50Kg of pure water, heating to 50 ℃, then slowly adding 7.2Kg of styrene into a reaction kettle under the condition of stirring, reacting for 60min after dropwise adding, measuring the pH value to be alkalescent, then adding 0.01Kg of tetrabromobisphenol A diallyl ether and 0.2Kg of 9-vinyl anthracene, controlling the temperature to be 60 ℃, slowly dropwise adding 5Kg of ammonium persulfate aqueous solution with the mass percentage content of 10% after uniformly stirring and mixing, stirring and reacting for 3h after dropwise adding, then adding 0.08Kg of cerium trifluoroacetate, 0.06Kg of disodium nickel ethylenediamine tetraacetate and 0.03Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 10h, drying the solvent after the reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.47kJ/m2, and the impact strength of the material after the weather resistance test is 5.32 kJ/m 2.
Example 2
The anti-aging polystyrene plastic product comprises the following components: 110Kg of polystyrene, 13Kg of ethyl methacrylate, 8Kg of polyethylene terephthalate, 2Kg of organic rare earth composite stabilizer, 5Kg of stearoylbenzoylmethane, 0.4Kg of 4-acetylphenyl potassium sulfate, 6Kg of silicon carbide fiber, 7Kg of titanium dioxide, 3Kg of calcium carbonate, 0.3Kg of coupling agent, 7Kg of toughening agent, and 5Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 15min, and mixing to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 220 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 190 ℃, the temperature of the melting section is 230 ℃, the temperature of the homogenizing section is 200 ℃ and the temperature of the machine head is 170 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 7Kg of lanthanum carbonate into 55Kg of pure water, heating to 58 ℃, then slowly adding 8Kg of styrene into a reaction kettle under the stirring condition, reacting for 80min after dropwise addition, measuring the pH value to be alkalescent, then adding 0.03Kg of tetrabromobisphenol A diallyl ether and 0.8Kg of 9-vinyl anthracene, controlling the temperature to be 70 ℃, slowly dropwise adding 11Kg of ammonium persulfate aqueous solution with the mass percentage content of 17% after stirring and mixing uniformly, stirring and reacting for 5h after dropwise addition, then adding 1Kg of cerium trifluoroacetate, 1.1Kg of disodium nickel ethylenediamine tetraacetate and 0.09Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 12h, drying the solvent after the reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- [2- (2-aminoethylamino) ethylamino ] propyl-trimethoxy silane.
The toughening agent is acrylonitrile-butadiene-styrene copolymer.
The lubricant is zinc stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.67kJ/m2, and the impact strength of the material after the weather resistance test is 5.56 kJ/m 2.
Example 3
The anti-aging polystyrene plastic product comprises the following components: 120Kg of polystyrene, 15Kg of ethyl methacrylate, 12Kg of polyethylene terephthalate, 4Kg of organic rare earth composite stabilizer, 7Kg of stearoylbenzoylmethane, 0.8Kg of 4-acetylphenyl potassium sulfate, 8Kg of silicon carbide fiber, 10Kg of titanium dioxide, 5Kg of calcium carbonate, 0.5Kg of coupling agent, 9Kg of toughening agent, and 7Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 20min, and mixing to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of 250 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 200 ℃, the temperature of the melting section is 250 ℃, the temperature of the homogenizing section is 210 ℃ and the temperature of the machine head is 180 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 9Kg of lanthanum carbonate into 80Kg of pure water, heating to 80 ℃, then slowly adding 15Kg of styrene into a reaction kettle under the stirring condition, reacting for 120min after dropwise addition, measuring the pH value to be alkalescent, then adding 0.1Kg of tetrabromobisphenol A diallyl ether and 3.2Kg of 9-vinyl anthracene, controlling the temperature to be 80 ℃, slowly dropwise adding 15Kg of ammonium persulfate aqueous solution with the mass percentage content of 30% after stirring and mixing uniformly, stirring and reacting for 6h after dropwise addition, then adding 2.1Kg of cerium trifluoroacetate, 1.8Kg of disodium nickel ethylenediamine tetraacetate and 0.5Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 15h, drying the solvent after reaction, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is ethyl silicate.
The toughening agent is tetrabromobisphenol A diallyl ether-butadiene-styrene terpolymer.
The lubricant is magnesium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.68kJ/m2, and the impact strength of the material after the weather resistance test is 5.60 kJ/m 2.
Comparative example 1
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding the coupling agent, the toughening agent and the lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing thoroughly to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 4.56kJ/m2, the impact strength of the material after the weather resistance test is 4.07 kJ/m2, and the strength retention rate is 74.71%.
Comparative example 2
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing well to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 4.5Kg of lanthanum carbonate into 50Kg of pure water, heating to 50 ℃, then slowly adding 7.2Kg of styrene into a reaction kettle under the condition of stirring, reacting for 60min after dropwise addition, determining that the pH value is alkalescence, then adding 0.2Kg of 9-vinylanthracene, controlling the temperature to be 60 ℃, stirring and mixing uniformly, slowly dropwise adding 5Kg of ammonium persulfate aqueous solution with the mass percentage content of 10%, stirring and reacting for 3h after dropwise addition, then adding 0.08Kg of cerium trifluoroacetate, 0.06Kg of nickel disodium ethylenediaminetetraacetate and 0.03Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 10h, drying the solvent after the reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.12kJ/m2, and the impact strength of the material after the weather resistance test is 4.99 kJ/m 2.
Comparative example 3
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing well to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 4.5Kg of lanthanum carbonate into 50Kg of pure water, heating to 50 ℃, then slowly adding 7.2Kg of styrene into a reaction kettle under the condition of stirring, reacting for 60min after dropwise addition, measuring the pH value to be alkalescence, then adding 0.01Kg of tetrabromobisphenol A diallyl ether, controlling the temperature to be 60 ℃, stirring and mixing uniformly, slowly adding 5Kg of ammonium persulfate aqueous solution with the mass percentage content of 10%, stirring and reacting for 3h after dropwise addition, then adding 0.08Kg of cerium trifluoroacetate, 0.06Kg of nickel disodium ethylenediaminetetraacetate, and 0.03Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 10h, drying the solvent after the reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.08kJ/m2, and the impact strength of the material after the weather resistance test is 4.71kJ/m 2.
Comparative example 4
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing well to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 4.5Kg of lanthanum carbonate into 50Kg of pure water, heating to 50 ℃, then slowly adding 7.2Kg of styrene into a reaction kettle under the condition of stirring, reacting for 60min after dropwise addition, measuring the pH value to be alkalescent, then adding 0.01Kg of tetrabromobisphenol A diallyl ether and 0.2Kg of 9-vinyl anthracene, controlling the temperature to be 60 ℃, slowly dropwise adding 5Kg of ammonium persulfate aqueous solution with the mass percentage content of 10% after uniform stirring and mixing, stirring and reacting for 3h after dropwise addition, then adding 0.06Kg of disodium nickel ethylenediamine tetraacetate and 0.03Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 10h, drying the solvent after reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.21kJ/m2, and the impact strength of the material after the weather resistance test is 5.05kJ/m 2.
Comparative example 5
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing well to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 4.5Kg of lanthanum carbonate into 50Kg of pure water, heating to 50 ℃, then slowly adding 7.2Kg of styrene into a reaction kettle under the condition of stirring, reacting for 60min after dropwise addition, measuring the pH value to be alkalescent, then adding 0.01Kg of tetrabromobisphenol A diallyl ether and 0.2Kg of 9-vinyl anthracene, controlling the temperature to be 60 ℃, slowly dropwise adding 5Kg of ammonium persulfate aqueous solution with the mass percentage content of 10% after uniform stirring and mixing, stirring and reacting for 3h after dropwise addition, then adding 0.08Kg of cerium trifluoroacetate and 0.03Kg of tricyclohexylborane into the reaction kettle, continuously stirring and reacting for 10h, drying the solvent after reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.21kJ/m2, and the impact strength of the material after the weather resistance test is 5.03 kJ/m 2.
Comparative example 6
The anti-aging polystyrene plastic product comprises the following components: 100Kg of polystyrene, 10Kg of ethyl methacrylate, 3Kg of polyethylene terephthalate, 0.5Kg of organic rare earth composite stabilizer, 2Kg of stearoylbenzoylmethane, 0.1Kg of 4-acetylphenyl potassium sulfate, 4Kg of silicon carbide fiber, 3Kg of titanium dioxide, 1Kg of calcium carbonate, 0.1Kg of coupling agent, 4Kg of toughening agent, and 2Kg of lubricant.
The anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10min, and mixing well to obtain a mixture; and then extruding and granulating by using a double-screw extruder, and obtaining the anti-aging polystyrene plastic product by using an injection molding machine at the injection molding temperature of about 240 ℃.
The temperature of the feeding section of the screw of the double-screw extruder is 180 ℃, the temperature of the melting section is 220 ℃, the temperature of the homogenizing section is 190 ℃ and the temperature of the machine head is 150 ℃.
The organic rare earth composite stabilizer is prepared according to the following scheme:
adding 4.5Kg of lanthanum carbonate into 50Kg of pure water, heating to 50 ℃, then slowly adding 7.2Kg of styrene into a reaction kettle under the condition of stirring, reacting for 60min after dropwise addition, measuring the pH value to be alkalescence, then adding 0.01Kg of tetrabromobisphenol A diallyl ether and 0.2Kg of 9-vinyl anthracene, controlling the temperature to be 60 ℃, slowly dropwise adding 5Kg of ammonium persulfate aqueous solution with the mass percentage content of 10% after uniform stirring and mixing, stirring and reacting for 3h after dropwise addition, then adding 0.08Kg of cerium trifluoroacetate and 0.06Kg of disodium nickel ethylenediamine tetraacetate into the reaction kettle, continuously stirring and reacting for 10h, drying the solvent after the reaction is finished, and crushing into powder to obtain the organic rare earth composite stabilizer.
The coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane.
The toughening agent is styrene-butadiene thermoplastic elastomer.
The lubricant is barium stearate.
The anti-aging polystyrene plastic product prepared by the experiment has the impact strength of 5.39kJ/m2, and the impact strength of the material after the weather resistance test is 5.16 kJ/m 2.
Claims (6)
1. An anti-aging polystyrene plastic product is characterized in that: the anti-aging polystyrene plastic product comprises the following raw material components: 100Kg of polystyrene, 10Kg to 15Kg of ethyl methacrylate, 3Kg to 12Kg of polyethylene terephthalate, 0.5Kg to 4Kg of organic rare earth composite stabilizer, 2Kg to 7Kg of stearoylbenzoylmethane, 0.1Kg to 0.8Kg of 4-acetylphenyl potassium sulfate, 4Kg to 8Kg of silicon carbide fiber, 3Kg to 10Kg of titanium dioxide, 1Kg to 5Kg of calcium carbonate, 0.1Kg to 0.5Kg of coupling agent, 4Kg to 9Kg of toughening agent, and 2Kg to 7Kg of lubricant;
the organic rare earth composite stabilizer is prepared according to the following scheme: 4.5 to 9Kg of lanthanum carbonate is added into 50 to 80Kg of pure water, heated to 50 to 80 ℃, then 7.2 to 15Kg of styrene is slowly added into a reaction kettle under the condition of stirring, the reaction lasts for 60 to 120min after the dropwise addition, the pH value is measured to be alkalescent, then 0.01 to 0.1Kg of tetrabromobisphenol A diallyl ether and 0.2 to 3.2Kg of 9-vinyl anthracene are added, the temperature is controlled to be 60 to 80 ℃, 5 to 15Kg of ammonium persulfate aqueous solution with the mass percentage content of 10 to 30 percent is slowly dropped after the uniform stirring and mixing, the reaction lasts for 2 to 6 hours after the dropping, then 0.08 to 2.1Kg of cerium trifluoroacetate, 0.06 to 1.8Kg of disodium nickel ethylenediaminetetraacetate and 0.03 to 0.5Kg of tricyclohexylborane are added into the reaction kettle, the reaction lasts for 10 to 15 hours after the continuous stirring, and after the reaction is finished, drying the solvent, and crushing the solvent into powder to obtain the organic rare earth composite stabilizer.
2. The anti-aging polystyrene plastic product as claimed in claim 1, wherein: the anti-aging polystyrene plastic product is processed according to the following method:
adding silicon carbide fiber, titanium dioxide and calcium carbonate into a mixing kettle, uniformly mixing, then adding an organic rare earth composite stabilizer, a coupling agent, a toughening agent and a lubricant, and continuously stirring and uniformly mixing; then adding other materials, stirring for 10-20min, and mixing to obtain mixture; and then extruding and granulating by using a double-screw extruder, and performing injection molding on the particles by using an injection molding machine at the injection molding temperature of 220-250 ℃ to obtain the anti-aging polystyrene plastic product.
3. The anti-aging polystyrene plastic product as claimed in claim 2, wherein: the temperature of the feeding section of the screw of the double-screw extruder is 180-.
4. The anti-aging polystyrene plastic product as claimed in claim 1, wherein: the coupling agent is 3- (methacryloyloxy) propyl trimethoxy silane or ethyl silicate or 3- [2- (2-amino ethylamino) ethylamino ] propyl-trimethoxy silane.
5. The anti-aging polystyrene plastic product as claimed in claim 1, wherein: the toughening agent is styrene-butadiene thermoplastic elastomer or acrylonitrile-butadiene-styrene copolymer or tetrabromobisphenol A diallyl ether-butadiene-styrene terpolymer.
6. The anti-aging polystyrene plastic product as claimed in claim 1, wherein: the lubricant is barium stearate or zinc stearate or magnesium stearate.
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Denomination of invention: An anti-aging polystyrene plastic product Effective date of registration: 20230510 Granted publication date: 20220301 Pledgee: Agricultural Bank of China Limited by Share Ltd. Pujiang County branch Pledgor: ZHEJIANG MEISHIDA COMMODITY Co.,Ltd. Registration number: Y2023980040164 |