A kind of water floating formula race track isolation is hit and is prepared method of composite environmental protection material of corrosion-resistant uv-resistant polyethylene floating body

Abstract

The application relates to a water floating type raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environment-friendly material and a preparation method thereof, and relates to the technical field of polyethylene materials. The water floating type raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environment-friendly material comprises the following components in proportion by weight: modified polyethylene 100-120 parts, fillers 6-15 parts, a crosslinking agent 0.5-2 parts, a lubricant 0.2-1 part, a nucleating agent 0.3-1.2 parts, an antioxidant 1-2 parts and a compatibilizer 1-5 parts. The application uses waste polyethylene as a main raw material, introduces ultrahigh molecular weight polyethylene for reinforcement, adopts oxygen-rich microwave plasma modification treatment and the addition of specific fillers, and prepares a high-performance polyethylene composite material. Not only the use demand of the water floating body is met, but also the waste polyethylene is recycled and utilized, environmental pollution is reduced, and the application has important environmental protection significance and economic value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of polyethylene materials, in particular to a water floating raceway isolation resistant to collision, corrosion and UV, and a preparation method thereof. BACKGROUND

[0002] With the continuous development of global economy and the improvement of people's living standards, plastic products have been widely used in daily life, industrial production and various activities. Polyethylene (PE) as a common plastic material, due to its good processing performance, chemical corrosion resistance and electrical insulation, is widely used. However, with the mass production and consumption of polyethylene products, the problem of waste polyethylene disposal has become increasingly prominent. If waste polyethylene is not properly disposed of, it will not only waste resources, but also pollute the environment. Traditional landfill or incineration disposal not only occupies a large amount of land, but also may produce toxic and harmful gases, posing a threat to the environment and human health. Therefore, how to realize the effective recycling and reuse of waste polyethylene has become a problem to be solved in the field of plastic waste disposal.

[0003] At the same time, as a new emerging water sport project, water floating raceway puts forward higher requirements on the performance of floating body material. The floating body material not only needs to have enough buoyancy, but also needs to have good impact resistance, aging resistance and corrosion resistance to ensure the safety and service life of the raceway.

[0004] In view of this, it is of great environmental significance and popularization value to develop a water floating body material using waste polyethylene as the main raw material. SUMMARY

[0005] To solve the above problems, the present application provides a water floating raceway isolation resistant to collision, corrosion and UV, and a preparation method thereof.

[0006] In the first aspect, the present application provides a water floating raceway isolation resistant to collision, corrosion and UV, and a preparation method thereof. The water floating raceway isolation resistant to collision, corrosion and UV comprises the following components by weight:

[0007] 100-120 parts of modified polyethylene, 6-15 parts of filler, 0.5-2 parts of crosslinking agent, 0.2-1 part of lubricant, 0.3-1.2 parts of nucleating agent, 1-2 parts of antioxidant and 1-5 parts of compatibilizer;

[0008] The modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of waste polyethylene and ultrahigh molecular weight polyethylene with a weight ratio of (77-85):(13-19) and a weight average molecular weight of 3-5 million;

[0009] The filler is obtained by compounding imidazole ionic liquid and calcium bentonite.

[0010] Further, the water-floating track isolation resistant to collision, corrosion and UV, and the environmentally friendly material for the polyethylene floating body comprises the following components in parts by weight:

[0011] The modified polyethylene 105 parts, the filler 9.5 parts, the crosslinking agent 1.2 parts, the lubricant 0.5 parts, the nucleating agent 0.8 parts, the antioxidant 1.5 parts and the compatibilizer 2 parts.

[0012] Further, the preparation method of the modified polyethylene comprises the following process:

[0013] The waste polyethylene and the ultra-high molecular weight polyethylene are mixed and crushed to obtain a mixed powder;

[0014] The mixed powder is placed in a microwave plasma treatment device for glow discharge treatment for 20-50s, and after the glow discharge is completed, oxygen is continuously introduced for 5-10 minutes to obtain the modified polyethylene;

[0015] The working condition parameters of the microwave plasma treatment device include: the volume ratio of oxygen and argon as the working medium is (6-8):1, and the microwave power is 750-820W.

[0016] Further, the preparation method of the filler comprises the following process:

[0017] The imidazole ionic liquid is added to anhydrous ethanol and stirred uniformly, and then calcium bentonite is added at a temperature of 45-55℃ and stirred for 30-60 minutes, and anhydrous ethanol is removed by reduced pressure distillation and dried to obtain the filler;

[0018] The weight ratio of the imidazole ionic liquid, the calcium bentonite and the anhydrous ethanol is (10-15):(7-13):(60-80).

[0019] Further, the imidazole ionic liquid is selected from at least one of 1-butyl-3-methylimidazole bromide salt, 1-hexyl-3-methylimidazole bromide salt and 1-ethyl-3-methylimidazole bromide salt.

[0020] Further, the crosslinking agent comprises at least one of dicumyl peroxide and benzoyl peroxide.

[0021] Further, the lubricant comprises at least one of oleamide and microcrystalline wax.

[0022] Further, the nucleating agent includes at least one of sodium beta-naphthalene formate and di(benzylidene)sorbitol; the compatibilizing agent includes at least one of maleic anhydride grafted polyethylene and ethylene-vinyl acetate copolymer; and the antioxidant includes at least one of tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester and dilauryl thiodipropionate.

[0023] In a second aspect, the present application provides a preparation method of the water-floating raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material according to any one of the first aspect, and the preparation method comprises the following steps:

[0024] The modified polyethylene, the filler, the crosslinking agent, the lubricant, the nucleating agent, the antioxidant and the compatibilizing agent are stirred and mixed to obtain a premix;

[0025] The premix is added into a double-screw extrusion device to perform melt extrusion and cooling and granulation, so as to obtain the water-floating raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material.

[0026] Further, the working condition parameters of the double-screw extrusion device include that the body temperature of the double-screw extrusion is 190-225 DEG C, the extruder head temperature is 190-215 DEG C, and the screw rotation speed is 200-350 r / min.

[0027] Compared with the prior art, the above technical solution provided by the embodiments of the present application has at least the following advantages:

[0028] The water-floating raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material provided by the embodiments of the present application is prepared by using waste polyethylene as the main raw material, introducing ultra-high molecular weight polyethylene as the polyethylene matrix, and performing oxygen-rich microwave plasma modification treatment, so as to improve the surface performance of the base material and the crosslinking and chemical bonding ability of the molecular chain, and improve the compatibility of the two polyethylene base materials. Meanwhile, the filler obtained by compounding imidazole ionic liquid and calcium-based bentonite is combined with the polyethylene matrix to form a good interface, so as to effectively improve the comprehensive performance of the polyethylene composite material, such as impact resistance, aging resistance, corrosion resistance and UV resistance, and successfully prepare a floating body polyethylene composite environmental protection material suitable for water-floating raceways, which not only meets the use requirements of the water-floating body, but also realizes the secondary recycling of waste polyethylene, has practical application value and important environmental protection significance. BRIEF DESCRIPTION OF DRAWINGS

[0029] The accompanying drawings, which are incorporated into and form a part of the specification, illustrate one embodiment consistent with the present application and, together with the description, serve to explain the principles of the application.

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, for those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0031] Figure 1 The flowchart of the preparation method of the water-floating raceway isolation resistant, corrosion-resistant and UV-resistant polyethylene floating body composite environmental protection material is provided.

[0032] Figure 2 The water-floating raceway isolation resistant, corrosion-resistant and UV-resistant polyethylene floating body composite environmental protection material is provided. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the protection scope of the present application.

[0034] Unless otherwise specifically indicated, the various raw materials, reagents, instruments and equipment used in the present application can be purchased from the market or can be prepared by the existing method.

[0035] In a first aspect, the present application provides a water-floating raceway isolation resistant, corrosion-resistant and UV-resistant polyethylene floating body composite environmental protection material, which comprises the following components in weight parts:

[0036] 100-120 parts of modified polyethylene, 6-15 parts of filler, 0.5-2 parts of crosslinking agent, 0.2-1 part of lubricant, 0.3-1.2 parts of nucleating agent, 1-2 parts of antioxidant and 1-5 parts of compatibility agent;

[0037] The modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of waste polyethylene and ultrahigh molecular weight polyethylene with a weight ratio of (77-85):(13-19) and a weight average molecular weight of 3-5 million;

[0038] The filler is obtained by compounding imidazole ionic liquid and calcium-based bentonite.

[0039] The embodiment of the present application provides a kind of water floating formula racecourse isolation with the impact-resistant corrosion-resistant UV-resistant polyethylene floating composite environmental protection material, the present application introduces ultra-high molecular weight polyethylene as polyethylene matrix on the basis of waste polyethylene as main raw material, and improves the surface properties of matrix and enhances the crosslinking and chemical bonding ability of molecular chain by oxygen-enriched microwave plasma modification treatment, improves the compatibility of two polyethylene matrix;The filler obtained by the compounding of imidazole ionic liquid and calcium bentonite is combined with the polyethylene matrix to form a good interface, thereby effectively improving the comprehensive performance of the polyethylene composite material, such as impact resistance, aging resistance, corrosion resistance and UV resistance, and successfully preparing a kind of anti-collision UV-resistant corrosion-resistant floating polyethylene composite environmental protection material suitable for water floating formula racecourse, which not only meets the use requirements of water floating material such as Figure 2 And realizes the secondary recycling of waste polyethylene, which has practical application value and important environmental protection significance.

[0040] In the present application, waste polyethylene can be selected from polyethylene product waste such as bottles, hollow containers, pipes, wires and cables, and waste polyethylene film, which is recycled after consumption on land.

[0041] In the present application, ultra-high molecular weight polyethylene (UHMW-PE) is a high molecular compound with super wear resistance, self-lubricating property, high strength, stable chemical property and strong aging resistance. In some embodiments, ultra-high molecular weight polyethylene with a weight average molecular weight of 5 million to 7 million can be selected from commercially available products such as Korean Oil Company, grade A-500, and specific products such as product type UHMWPEU050 (weight average molecular weight 5 million) and UHMWPEU050 H (weight average molecular weight 3.7 million).

[0042] In some embodiments, the modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of waste polyethylene and ultra-high molecular weight polyethylene with a weight ratio of 80:17 and a weight average molecular weight of 3 million to 5 million.

[0043] In some embodiments, the water floating formula racecourse isolation with impact-resistant corrosion-resistant UV-resistant polyethylene floating composite environmental protection material comprises the following components by weight:

[0044] Modified polyethylene 105 parts, filler 9.5 parts, crosslinking agent 1.2 parts, lubricant 0.5 parts, nucleating agent 0.8 parts, antioxidant 1.5 parts and compatibility agent 2 parts.

[0045] In some embodiments, the preparation method of the modified polyethylene comprises the following process:

[0046] Mix and crush waste polyethylene and ultra-high molecular weight polyethylene to obtain mixed powder;

[0047] placing the mixed powder into a microwave plasma processing device for glow discharge treatment for 20-50s, continuing to pass in oxygen for 5-10 minutes after the glow discharge ends, to obtain the modified polyethylene;

[0048] The working condition parameters of the microwave plasma processing device include: the volume ratio of oxygen and argon as working medium is (6-8):1, and the microwave power is 750-820W.

[0049] In some specific embodiments, the glow discharge treatment time is 35s.

[0050] In some specific embodiments, the working condition parameters of the microwave plasma processing device include: the volume ratio of oxygen and argon as working medium is 7:1, and the microwave power is 780W.

[0051] In some specific embodiments, the filler preparation method includes the following process:

[0052] stirring the imidazole ionic liquid in anhydrous ethanol, then adding calcium bentonite at a temperature of 45-55℃ and continuing to stir for 30-60 minutes, removing the anhydrous ethanol by reduced pressure distillation and drying, to obtain the filler;

[0053] The weight ratio of the imidazole ionic liquid, the calcium bentonite and the anhydrous ethanol is (10-15):(7-13):(60-80).

[0054] In some specific embodiments, the imidazole ionic liquid is selected from at least one of 1-butyl-3-methylimidazolium bromide, 1-hexyl-3-methylimidazolium bromide and 1-ethyl-3-methylimidazolium bromide.

[0055] In some specific embodiments, the crosslinking agent includes at least one of dicumyl peroxide and benzoyl peroxide.

[0056] In some specific embodiments, the lubricant includes at least one of oleamide and microcrystalline wax.

[0057] In some specific embodiments, the nucleating agent includes at least one of sodium β-naphthoate and bis(benzylidene)sorbitol; the compatibilizer includes at least one of maleic anhydride grafted polyethylene and ethylene-vinyl acetate copolymer; and the antioxidant includes at least one of pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and dilauryl thiodipropionate.

[0058] It should be noted that the component raw materials involved in the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material provided by the embodiments of the present application can be directly used as commercially available products or self-made according to the preparation process disclosed by the prior art without special limitation or description.

[0059] In a second aspect, based on the overall inventive concept, the present application provides a preparation method of the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material according to any one of the first aspect, as shown in the following formula: Figure 1 The preparation method comprises the following steps:

[0060] The modified polyethylene, the filler, the crosslinking agent, the lubricant, the nucleating agent, the antioxidant and the compatibilizer are stirred and mixed to obtain a premix;

[0061] The premix is added into a double screw extrusion device for melt extrusion and cooling and granulation to obtain the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material.

[0062] The preparation method of the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material provided by the present application is simple to operate, does not require additional special equipment, and can be processed and formed by using conventional plastic processing technology, which is suitable for industrial production. At the same time, the preparation method of the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material is based on the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material according to any one of the first aspect, so it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0063] In some specific embodiments, the working condition parameters of the double screw extrusion device include that the barrel temperature of the double screw extrusion is 190-225 DEG C, the extruder head temperature is 190-215 DEG C, and the screw rotation speed is 200-350 r / min.

[0064] It should be noted that the operation steps and parameters involved in the preparation process of the water floating race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material provided by the embodiments of the present application can be carried out according to the existing polyethylene material preparation process or using existing equipment without special limitation or specific description.

[0065] The present application will be further described in conjunction with specific examples. It should be understood that these examples are only used to illustrate the present application and not to limit the scope of the present application. The experimental methods in the following examples without specific conditions are generally determined according to the national standards. If there is no corresponding national standard, the general international standard, the conventional condition or the condition suggested by the manufacturer is used.

[0066] Embodiment 1

[0067] The example provides a water floating race track isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material, which comprises the following components in parts by weight:

[0068] modified polyethylene 105 parts, filler 9.5 parts, crosslinking agent 1.2 parts, lubricant 0.5 parts, nucleating agent 0.8 parts, antioxidant 1.5 parts and compatibilizer 2 parts;

[0069] The modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of waste polyethylene and ultrahigh molecular weight polyethylene with a weight ratio of 80:17, wherein the waste polyethylene is waste polyethylene recovered after consumption on land, and the ultrahigh molecular weight polyethylene has a product model number of UHMWPEU050 H and a weight average molecular weight of 3-5 million;

[0070] The filler is obtained by compounding imidazole ionic liquid and calcium-based bentonite, wherein the imidazole ionic liquid is 1-butyl-3-methyl imidazole bromide;

[0071] The crosslinking agent is dicumyl peroxide;

[0072] The lubricant is microcrystalline wax;

[0073] The nucleating agent is sodium beta-naphthoate;

[0074] The antioxidant is tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester;

[0075] The compatibilizer is maleic anhydride grafted polyethylene.

[0076] The preparation method of the water floating race track isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material comprises the following steps:

[0077] Step (1): mix and crush the waste polyethylene and ultrahigh molecular weight polyethylene to obtain a mixed powder; place the mixed powder in a microwave plasma treatment device for glow discharge treatment for 35s, and continue to introduce oxygen for 8 minutes after the glow discharge is completed to obtain the modified polyethylene; wherein the working condition parameters of the microwave plasma treatment device include: the volume ratio of working medium oxygen and argon is 7:1, and the microwave power is 780W;

[0078] Step (2): stirring the imidazole ionic liquid in anhydrous ethanol, then adding calcium bentonite at 50℃ and stirring for 45 minutes, removing anhydrous ethanol under reduced pressure and drying to obtain the filler; wherein the weight ratio of the imidazole ionic liquid, the calcium bentonite and the anhydrous ethanol is 13:8:70;

[0079] Step (3): stirring the modified polyethylene obtained in step (1), the filler obtained in step (2), a crosslinking agent, a lubricant, a nucleating agent, an antioxidant and a compatibilizer to obtain a premix; adding the premix into a twin-screw extrusion device for melt extrusion and cooling and granulation to obtain the water-floating track isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material; wherein the working condition parameters of the twin-screw extrusion device include: the body temperature of the twin-screw extrusion is 220℃, the extruder head temperature is 205℃, and the screw rotation speed is 280r / min.

[0080] Example 2

[0081] The example provides a water-floating track isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material, which comprises the following components in weight parts:

[0082] 100 parts of modified polyethylene, 6 parts of filler, 0.5 parts of crosslinking agent, 0.2 parts of lubricant, 0.3 parts of nucleating agent, 1 part of antioxidant and 1 part of compatibilizer;

[0083] The modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of waste polyethylene and ultrahigh molecular weight polyethylene with a weight ratio of 77:13, wherein the waste polyethylene is land-based post-consumer waste polyethylene; the product model of the ultrahigh molecular weight polyethylene is UHMWPEU050;

[0084] The filler is obtained by compounding imidazole ionic liquid and calcium bentonite; wherein the imidazole ionic liquid is 1-hexyl-3-methyl imidazole bromide salt;

[0085] The crosslinking agent is dicumyl peroxide;

[0086] The lubricant is oleamide;

[0087] The nucleating agent is sodium β-naphthoate;

[0088] The antioxidant is tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester;

[0089] The compatibilizer is maleic anhydride grafted polyethylene.

[0090] The preparation method of the water-floating raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material comprises the following steps:

[0091] Step (1): waste polyethylene and ultra-high molecular weight polyethylene are mixed and crushed to obtain a mixed powder; the mixed powder is placed in a microwave plasma treatment device for glow discharge treatment for 20s, and oxygen is continuously introduced for 8 minutes after the glow discharge ends to obtain the modified polyethylene; wherein the working condition parameters of the microwave plasma treatment device include: the volume ratio of oxygen and argon as the working medium is 7:1, and the microwave power is 820W;

[0092] Step (2): the imidazole ionic liquid is added to anhydrous ethanol and stirred uniformly, and then calcium bentonite is added at a temperature of 50°C and stirred for 45 minutes, and anhydrous ethanol is removed by reduced pressure distillation and dried to obtain the filler; wherein the weight ratio of the imidazole ionic liquid, the calcium bentonite and the anhydrous ethanol is 10:7:60;

[0093] Step (3): the modified polyethylene obtained in step (1), the filler obtained in step (2), the crosslinking agent, the lubricant, the nucleating agent, the antioxidant and the compatibilizer are stirred and mixed to obtain a premix; the premix is added to a double-screw extrusion device for melt extrusion and cooling and granulation to obtain the water-floating raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material; wherein the working condition parameters of the double-screw extrusion device include: the body temperature of the double-screw extrusion is 220°C, the extruder head temperature is 205°C, and the screw speed is 280r / min.

[0094] Example 3

[0095] The water-floating raceway isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material provided in this example comprises the following components in weight parts:

[0096] 120 parts of modified polyethylene, 15 parts of filler, 2 parts of crosslinking agent, 1 part of lubricant, 1.2 parts of nucleating agent, 2 parts of antioxidant and 5 parts of compatibilizer;

[0097] The modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of 85:19 weight ratio of waste polyethylene and ultra-high molecular weight polyethylene with a weight average molecular weight of 3-5 million; wherein the waste polyethylene is land-based post-consumer waste polyethylene; the product model of the ultra-high molecular weight polyethylene is UHMWPEU050;

[0098] The filler is obtained by combining imidazole ionic liquid and calcium-based bentonite; wherein the imidazole ionic liquid is 1-hexyl-3-methylimidazolium bromide.

[0099] The crosslinking agent is dicumyl peroxide;

[0100] The lubricant is oleamide;

[0101] The nucleating agent is sodium β-naphthoate;

[0102] The antioxidant is pentaerythritol tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate];

[0103] The compatibilizer is maleic anhydride-grafted polyethylene.

[0104] The preparation method of the above-mentioned impact-resistant, corrosion-resistant, and UV-resistant polyethylene floating composite environmentally friendly material for floating track barriers includes the following steps:

[0105] Step (1): Waste polyethylene and ultra-high molecular weight polyethylene are mixed and crushed to obtain mixed powder; the mixed powder is placed in a microwave plasma treatment device for glow discharge treatment for 50s, and oxygen is continued to be introduced for 8 minutes after the glow discharge ends to obtain the modified polyethylene; wherein, the working condition parameters of the microwave plasma treatment device include: the working medium is oxygen and argon with a volume ratio of 7:1, and the microwave power is 750W;

[0106] Step (2): Imidazole ionic liquid is added to anhydrous ethanol and stirred evenly. Then, calcium-based bentonite is added at 50°C and stirred for 45 minutes. Anhydrous ethanol is removed by vacuum distillation and the mixture is dried to obtain the filler. The weight ratio of the imidazole ionic liquid, the calcium-based bentonite and the anhydrous ethanol is 15:13:80.

[0107] Step (3): The modified polyethylene obtained in step (1), the filler, crosslinking agent, lubricant, nucleating agent, antioxidant and compatibilizer obtained in step (2) are stirred and mixed to obtain a premix; the premix is ​​added to a twin-screw extruder for melt extrusion and cooling pelletizing to obtain the impact-resistant, corrosion-resistant and UV-resistant polyethylene floating composite environmentally friendly material for water-floating track isolation; wherein, the working condition parameters of the twin-screw extruder include: the body temperature of the twin-screw extruder is 220℃, the extruder head temperature is 205℃, and the screw speed is 280r / min.

[0108] Comparative Example 1

[0109] This example provides a polyethylene composite environmentally friendly material and its preparation method. The only difference from Example 1 is that the modified polyethylene was not subjected to oxygen-enriched microwave plasma treatment; the remaining steps and parameters are the same.

[0110] The preparation method of the polyethylene composite environmental protection material comprises the following steps:

[0111] Step (1): waste polyethylene and ultra-high molecular weight polyethylene are mixed and crushed to obtain a mixed powder (as a modified polyethylene);

[0112] Step (2): the imidazole ionic liquid is added into anhydrous ethanol and stirred uniformly, then calcium bentonite is added at a temperature of 50°C and stirred for 45 minutes, anhydrous ethanol is removed by reduced pressure distillation and dried to obtain the filler; wherein the weight ratio of the imidazole ionic liquid, the calcium bentonite and the anhydrous ethanol is 13:8:70;

[0113] Step (3): the modified polyethylene obtained in step (1), the filler obtained in step (2), a crosslinking agent, a lubricant, a nucleating agent, an antioxidant and a compatibilizer are stirred and mixed to obtain a premix; the premix is added into a double screw extrusion device for melt extrusion and cooling and granulation to obtain the water floating type track isolation impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material; wherein the working condition parameters of the double screw extrusion device include that the body temperature of the double screw extrusion is 220°C, the extruder head temperature is 205°C, and the screw rotation speed is 280 r / min.

[0114] Comparative Example 2

[0115] This example provides a polyethylene composite environmental protection material and a preparation method thereof, which are different from those of Example 1 only in that the filler is talc powder (and the preparation process of the filler in step (2) is omitted in the preparation method); the rest of the steps and parameters are the same.

[0116] Comparative Example 3

[0117] This example provides a polyethylene composite environmental protection material and a preparation method thereof, which are different from those of Example 1 only in that the weight ratio of waste polyethylene and ultra-high molecular weight polyethylene with a weight average molecular weight of 3 million to 5 million is adjusted to 65:27; the rest of the steps and parameters are the same.

[0118] Test Example

[0119] This example tests the performance of the polyethylene composite environmental protection materials obtained in Examples 1-3 and Comparative Examples 1-3.

[0120] Test method and standard: 1) impact resistance is tested according to ASTM D638 standard; 2) UV resistance is tested according to IEC 61215-2:2016 standard, and the tensile strain at break after ultraviolet radiation is tested.

[0121] The test results are shown in Table 1.

[0122] Table 1

[0123]

[0124] As can be seen from Table 1, compared with Comparative Examples 1-3, the polyethylene composite environmental protection material provided by the embodiment of the present application has better impact resistance and UV resistance, and a kind of anti-collision UV-resistant corrosion-resistant polyethylene composite environmental protection material for water floating track is successfully prepared, which meets the use requirements of water floating material.

[0125] In summary, the embodiment of the present application provides a kind of water floating track isolation resistant to corrosion and UV-resistant polyethylene floating body composite environmental protection material and its preparation method, the present application is mainly raw material with waste polyethylene, by introducing ultra-high molecular weight polyethylene to enhance, while using oxygen-rich microwave plasma modification treatment and the addition of specific filler, a kind of high-performance polyethylene composite material is prepared.This material not only meets the use requirements of water floating body, but also realizes the recycling of waste polyethylene, reduces environmental pollution, has important environmental significance and economic value.

[0126] Various embodiments of the present application can exist in the form of a range; it should be understood that the description in the form of a range is only for the convenience and brevity, and should not be understood as a hard limit on the scope of the present application; therefore, it should be considered that the described range has disclosed all possible sub-ranges and single values within the range. For example, it should be considered that the range from 1 to 6 has disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which applies to any range. In addition, whenever a numerical range is indicated in this document, it refers to any cited number (fraction or integer) within the indicated range.

[0127] In the present application, the orientation words such as "upper" and "lower" are specifically the directions of the drawing surface in the drawings unless otherwise stated. In addition, in the description of the present application, the terms "comprise", "include" and the like mean "including but not limited to". In this text, the relational terms such as "first" and "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. In this text, "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent: the case of A alone, the case of A and B existing at the same time, and the case of B alone. Wherein A, B can be singular or plural. In this text, "at least one" means one or more, and "multiple" means two or more. "At least one", "at least one of the following" or the like means any combination of these items, including any combination of single item or multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can represent: a, b, c, a-b (i.e. a and b), a-c, b-c, or a-b-c, wherein a, b, c can be single or multiple.

[0128] The above description is only a specific embodiment of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A kind of water floating race track isolation with impact-resistant corrosion-resistant UV-resistant polyethylene floating body composite environmental protection material, it is characterized by, The water floating type race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material comprises the following components in parts by weight: modified polyethylene 105 parts, filler 9.5 parts, crosslinking agent 1.2 parts, lubricant 0.5 parts, nucleating agent 0.8 parts, antioxidant 1.5 parts and compatibilizer 2 parts; The modified polyethylene is obtained by oxygen-enriched microwave plasma treatment of waste polyethylene and ultrahigh molecular weight polyethylene with a weight ratio of 80:17, wherein the waste polyethylene is land-based post-consumer waste polyethylene; the ultrahigh molecular weight polyethylene has a product model number of UHMWPEU050 H; The filler is obtained by compounding imidazole ionic liquid and calcium bentonite; wherein the imidazole ionic liquid is 1-butyl-3-methyl imidazole bromide; The crosslinking agent is dicumyl peroxide; The lubricant is microcrystalline wax; The nucleating agent is sodium beta-naphthoate; The antioxidant is tetra[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester; The compatibilizer is maleic anhydride grafted polyethylene The preparation method of the water floating type race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material comprises the following steps: Step (1): mixing and crushing the waste polyethylene and the ultrahigh molecular weight polyethylene to obtain a mixed powder; placing the mixed powder in a microwave plasma treatment device for glow discharge treatment for 35s, and then continuing to introduce oxygen for 8min after the glow discharge is completed to obtain the modified polyethylene; wherein the working condition parameters of the microwave plasma treatment device include: the volume ratio of oxygen and argon as the working medium is 7:1, and the microwave power is 780W; Step (2): stirring the imidazole ionic liquid in anhydrous ethanol until uniform, then adding calcium bentonite at a temperature of 50℃ and continuing to stir for 45min, then removing the anhydrous ethanol by reduced pressure distillation and drying to obtain the filler; wherein the weight ratio of the imidazole ionic liquid, the calcium bentonite and the anhydrous ethanol is 13:8:70; Step (3): stirring and mixing the modified polyethylene obtained in step (1), the filler obtained in step (2), the crosslinking agent, the lubricant, the nucleating agent, the antioxidant and the compatibilizer to obtain a premix; placing the premix into a double screw extrusion device for melt extrusion and cooling and pelletizing to obtain the water floating type race track isolation resistant to collision, corrosion and UV resistant polyethylene floating body composite environmental protection material; wherein the working condition parameters of the double screw extrusion device include: the body temperature of the double screw extrusion is 220℃, the extruder head temperature is 205℃, and the screw rotation speed is 280r / min.

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