CN115873392A - Low-cost and high-toughness POK/PP alloy high polymer material and preparation method thereof - Google Patents
Low-cost and high-toughness POK/PP alloy high polymer material and preparation method thereof Download PDFInfo
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Abstract
The invention relates to the technical field of alloy high polymer materials, and particularly discloses a low-cost and high-toughness POK/PP alloy high polymer material which comprises the following raw materials in parts by weight: 39.15 to 69.15 portions of POK polyketone, 20 to 50 portions of PP polypropylene, 5 to 10 portions of polar compatilizer, 5 to 10 portions of toughener, 0.3 to 1 portion of antioxidant, 0.05 to 0.5 portion of heat stabilizer and 0.5 to 2.0 portions of lubricant. According to the invention, as both POK and PP are crystalline materials, the compatibility of the POK and PP is poor, and the compatibility of the POK and PP is effectively improved by adding the compatilizer, so that the optimal mechanical property of the POK/PP alloy is obtained.
Description
Technical Field
The invention relates to the technical field of alloy materials, in particular to a low-cost and high-toughness POK/PP alloy high polymer material and a preparation method thereof.
Background
POK is a thermoplastic engineering plastic with extremely excellent comprehensive performance, belongs to polyketone materials, and is a novel green polymer material formed by coordination polymerization of carbon monoxide and olefin (ethylene and propylene). The POK has good self-lubricating property and excellent wear resistance which is 14 times that of POM; the POK has high thermal deformation temperature and excellent impact resistance at a wider application environment temperature; the POK has excellent chemical resistance, fuel oil resistance and hydrolysis resistance; the POK is green and environment-friendly and does not contain harmful substances. The polypropylene material (PP) is a crystalline high polymer and has the characteristics of rich source, low cost, good processing performance and the like, but has low tensile strength, low elongation, low heat distortion temperature and poor wear resistance; POK also has excellent impact strength and elongation at sufficient tensile strength. The POK has extremely high toughness, good enough tensile strength and bending modulus and high heat deformation temperature, the heat deformation temperature of the POK is 200 ℃, the POK is superior to many materials, and the POK can be used in high-temperature environment. The POK has durability, so that the parts can be prevented from being broken during installation, and the POK is mainly applied to automotive electronic and electric appliances, automotive connectors and buckles; meanwhile, due to the excellent wear resistance of the POK, the POK is also suitable for being applied to gear parts.
The POK polyketone material has the defects of low notch impact strength, easy color change during high-temperature processing, lower flexural modulus compared with a polyformaldehyde material, and the notch impact resistance, rigidity and processability of the POK polyketone material need to be improved.
Chinese patent document CN109825042A discloses a POK/PET/PBT ternary alloy material and a preparation process thereof, wherein the POK/PET/PBT ternary alloy material comprises the following components in percentage by mass: 20-30% of polyethylene terephthalate, 20-30% of polybutylene terephthalate, 10-20% of polyketone, 1-5% of an antistatic agent, 5-10% of a halogen-free flame retardant, 0.1-0.5% of a compatilizer, 0.2-0.8% of a lubricant, 1-5% of an antioxidant, 0.5-1% of a toughening agent and 1-3% of a reinforcing agent, wherein the sum of the mass percentages of the components is 100%.
Therefore, the problem to be solved by those skilled in the art is how to provide a low-cost and high-toughness POK/PP alloy polymer material.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a low-cost and high-toughness POK/PP alloy high polymer material and a preparation method thereof so as to solve the problems in the background technology.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the invention provides a low-cost and high-toughness POK/PP alloy high polymer material which is characterized by comprising the following raw materials in parts by weight:
39.15 to 69.15 portions of POK polyketone, 20 to 50 portions of PP polypropylene, 5 to 10 portions of polar compatilizer, 5 to 10 portions of toughener, 0.3 to 1 portion of antioxidant, 0.05 to 0.5 portion of heat stabilizer and 0.5 to 2.0 portions of lubricant.
Preferably, the alloy high polymer material comprises the following raw materials in parts by weight:
45 parts of POK polyketone, 35 parts of PP polypropylene, 7.5 parts of polar compatilizer, 7.5 parts of flexibilizer, 0.65 part of antioxidant, 2.5 parts of heat stabilizer and 1.2 parts of lubricant
Preferably, 2-6 parts of graphene coordinated chitosan modifier and 1-5 parts of modified aluminum silicate fiber are further added to the alloy high polymer material.
Preferably, the preparation method of the graphene coordinated chitosan modifier comprises the following steps:
s11: firstly, placing 10-15 parts of graphene, 1-3 parts of yttrium oxide and 3-6 parts of hydroxyapatite in a stirrer, and fully stirring and mixing to obtain a graphene composite material;
s12: adding chitosan into a sodium dodecyl sulfate solution according to the weight ratio of 1;
s13: mixing the graphene composite material and the chitosan modified solution according to the weight ratio of 1;
s14: and (3) carrying out heat treatment on the product of the S13 at the temperature of 150-160 ℃ for 25-35min, and naturally cooling to room temperature after the heat treatment is finished to obtain the graphene coordinated chitosan modifier.
Preferably, the conditions of the S13 stirring reaction treatment are as follows: stirring at 55-65 deg.C for 20-30min at 550-650r/min.
Preferably, the mass fractions of the lanthanum chloride solution and the lauryl sodium sulfate solution are 5-10% and 15-20%, respectively.
Preferably, the modification method of the modified aluminum silicate fiber comprises the following steps:
10-20 parts of aluminum silicate fiber is sent into 30-40 parts of hydrochloric acid solution with the mass fraction of 3% to be soaked for 20-30min, then 1-3 parts of potassium acetate solution with the mass fraction of 5% and 1-3 parts of sodium oxalate are added, then the mixture is reacted for 20-30min at the temperature of 40-50 ℃, the reaction speed is 300-400r/min, and after the reaction is finished, the mixture is washed by water and dried to obtain the modified aluminum silicate fiber.
Preferably, the polyketone POK is a polymer synthesized from carbon monoxide and olefin (ethylene, propylene), in particular carbon monoxide and ethylene, carbon monoxide and propylene, or a copolymer of carbon monoxide and ethylene and propylene, preferably a copolymer of carbon monoxide and ethylene and propylene, aliphatic or aromatic, having a number average molecular weight of 10000 to 100000, preferably a molecular weight of 60000 to 90000, in particular a high impact M620A, M630A, M710A, M730A, etc., from dawn high flow grade;
the polypropylene PP is a high polymer polymerized by propylene, and contains block copolymer polypropylene, random copolymer polypropylene and homo-polypropylene, and preferably block copolymer polypropylene;
the polar compatilizer is formed by compounding one or more of PP grafted maleic anhydride, PP grafted glycidyl acrylate, POE grafted maleic anhydride, POE grafted glycidyl acrylate, ethylene-maleic anhydride copolymer, ethylene-glycidyl acrylate copolymer, ethylene-butadiene-styrene ternary block copolymer grafted maleic anhydride, ethylene-butadiene-styrene ternary block copolymer grafted glycidyl acrylate and the like;
the toughening agent is formed by compounding one or more of ethylene-methyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene acrylate copolymer grafted maleic anhydride, ethylene acrylate copolymer grafted glycidyl acrylate, core-shell structure MBS toughening agent, styrene-butadiene-styrene ternary block copolymer, hydrogenated SEBS and polyurethane elastomer;
the antioxidant is one or more of diphosphine compounds such as tetrakis [ methyl- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester, N ' -1, 6-hexylene-bis [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionamide ], N-octadecyl 3, 5-di-tert-butyl-4-hydroxyphenyl propionate, 1,3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) -1,3, 5-triazine-2, 4,6- (1H, 3H, 5H) trione, triethylene glycol bis [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate ], 2' -methylenebis (4-methyl-6-tert-butylphenol), tris (2, 4-di-tert-butylphenyl) phosphite, bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, dioctadecylpentaerythritol diphosphite, tetrakis (2, 4-di-tert-butylphenyl-4, 4' -biphenyl) phosphate, and the like;
the heat stabilizer is any one of calcium stearate, zinc stearate, calcium ricinoleate, zinc ricinoleate or epoxidized soybean oil; the lubricant is prepared by compounding one or more of polyethylene wax, N '-ethylene bis stearamide, organic silicon oil, oleamide, ethylene bis oleamide, N' -ethylene bis stearamide-grafted maleic anhydride, silicone powder, fluorine-containing lubricant and the like.
The invention also provides a preparation method of the low-cost and high-toughness POK/PP alloy high polymer material, which comprises the following steps:
the method comprises the following steps: weighing POK, PP, a polar compatilizer, a flexibilizer, an antioxidant, a graphene synergistic chitosan modifier, modified aluminum silicate fibers, a heat stabilizer and a lubricant according to the weight part ratio for later use;
step two: mixing: uniformly mixing POK, PP, a polar compatilizer, a flexibilizer, an antioxidant, a graphene coordinated chitosan modifier, modified aluminum silicate fibers, a heat stabilizer and a lubricant to obtain a mixture; and extruding and granulating the mixture to obtain the low-cost and high-toughness POK/PP alloy material.
Preferably, the granulation is carried out by a double-screw extruder, and the temperature of each section of the double-screw extruder is 200-260 ℃, and the rotating speed of a screw is 180-360 rpm.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, both POK and PP are crystalline materials, so that the compatibility of the POK and PP is poor, and the compatibility of the POK and PP is effectively improved by adding the compatilizer, so that the optimal mechanical property of the POK/PP alloy is obtained; the preferred toughening agent has certain compatibility with both POK and PP, and can effectively improve the toughness of the alloy material. The antioxidant effectively improves the heat resistance of the material and solves the problem of aging of the material in the long-term use process; the lubricant reduces the degradation of the alloy material in the double-screw processing and injection molding processing processes; the added graphene is cooperated with the chitosan modifier and the modified aluminum silicate fiber, so that the raw materials of the graphene and the modified aluminum silicate fiber have a synergistic effect, the toughness and strength performance effects of the product are enhanced, and the use efficiency of the product is improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The low-cost and high-toughness POK/PP alloy high polymer material is characterized by comprising the following raw materials in parts by weight:
39.15 to 69.15 portions of POK polyketone, 20 to 50 portions of PP polypropylene, 5 to 10 portions of polar compatilizer, 5 to 10 portions of toughener, 0.3 to 1 portion of antioxidant, 0.05 to 0.5 portion of heat stabilizer and 0.5 to 2.0 portions of lubricant.
The alloy high polymer material of the embodiment comprises the following raw materials in parts by weight:
45 parts of POK polyketone, 35 parts of PP polypropylene, 7.5 parts of polar compatilizer, 7.5 parts of flexibilizer, 0.65 part of antioxidant, 2.5 parts of heat stabilizer and 1.2 parts of lubricant
The alloy high polymer material of the embodiment is also added with 2-6 parts of graphene synergistic chitosan modifier and 1-5 parts of modified aluminum silicate fiber.
The preparation method of the graphene coordinated chitosan modifier comprises the following steps:
s11: firstly, placing 10-15 parts of graphene, 1-3 parts of yttrium oxide and 3-6 parts of hydroxyapatite in a stirrer, and fully stirring and mixing to obtain a graphene composite material;
s12: adding chitosan into a sodium dodecyl sulfate solution according to the weight ratio of 1;
s13: mixing the graphene composite material and the chitosan modified solution according to the weight ratio of 1;
s14: and (3) carrying out heat treatment on the product of the S13 at the temperature of 150-160 ℃ for 25-35min, and naturally cooling to room temperature after the heat treatment is finished to obtain the graphene coordinated chitosan modifier.
The conditions of the S13 stirring reaction treatment in this example were: stirring at 55-65 deg.C for 20-30min at 550-650r/min.
The mass fractions of the lanthanum chloride solution and the lauryl sodium sulfate solution in this example are 5-10% and 15-20%, respectively.
The modification method of the modified alumina silicate fiber in the embodiment comprises the following steps:
10-20 parts of aluminum silicate fiber is sent into 30-40 parts of hydrochloric acid solution with the mass fraction of 3% to be soaked for 20-30min, then 1-3 parts of potassium acetate solution with the mass fraction of 5% and 1-3 parts of sodium oxalate are added, then the mixture is reacted for 20-30min at the temperature of 40-50 ℃, the reaction speed is 300-400r/min, and after the reaction is finished, the mixture is washed by water and dried to obtain the modified aluminum silicate fiber.
Preferably, the polyketone POK is a polymer synthesized from carbon monoxide and olefin (ethylene, propylene), in particular carbon monoxide and ethylene, carbon monoxide and propylene, or a copolymer of carbon monoxide and ethylene and propylene, preferably a copolymer of carbon monoxide and ethylene and propylene, aliphatic or aromatic, having a number average molecular weight of 10000 to 100000, preferably a molecular weight of 60000 to 90000, in particular a high impact M620A, M630A, M710A, M730A, etc., from dawn high flow grade;
the polypropylene PP is a propylene polymerized high polymer and contains block copolymer polypropylene, random copolymer polypropylene and homopolymerized polypropylene, and block copolymer polypropylene is preferred;
the polar compatilizer is formed by compounding one or more of PP grafted maleic anhydride, PP grafted glycidyl acrylate, POE grafted maleic anhydride, POE grafted glycidyl acrylate, ethylene-maleic anhydride copolymer, ethylene-glycidyl acrylate copolymer, ethylene-butadiene-styrene ternary block copolymer grafted maleic anhydride, ethylene-butadiene-styrene ternary block copolymer grafted glycidyl acrylate and the like;
the toughening agent is formed by compounding one or more of ethylene-methyl acrylate copolymer, ethylene butyl acrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene acrylate copolymer grafted maleic anhydride, ethylene acrylate copolymer grafted glycidyl acrylate, core-shell structure MBS toughening agent, styrene-butadiene-styrene ternary block copolymer, hydrogenated SEBS and polyurethane elastomer;
the antioxidant is one or more of diphosphine compounds such as tetrakis [ methyl- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester, N ' -1, 6-hexylene-bis [3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionamide ], N-octadecyl 3, 5-di-tert-butyl-4-hydroxyphenyl propionate, 1,3, 5-tris (4-tert-butyl-3-hydroxy-2, 6-dimethylbenzyl) -1,3, 5-triazine-2, 4,6- (1H, 3H, 5H) trione, triethylene glycol bis [3- (3-tert-butyl-4-hydroxy-5-methylphenyl) propionate ], 2' -methylenebis (4-methyl-6-tert-butylphenol), tris (2, 4-di-tert-butylphenyl) phosphite, bis (2, 4-di-tert-butylphenyl) pentaerythritol diphosphite, dioctadecylpentaerythritol diphosphite, tetrakis (2, 4-di-tert-butylphenyl-4, 4' -biphenyl) phosphate, and the like;
the heat stabilizer is any one of calcium stearate, zinc stearate, calcium ricinoleate, zinc ricinoleate or epoxidized soybean oil; the lubricant is prepared by compounding one or more of polyethylene wax, N '-ethylene bis stearamide, organic silicon oil, oleamide, ethylene bis oleamide, N' -ethylene bis stearamide-grafted maleic anhydride, silicone powder, fluorine-containing lubricant and the like.
The preparation method of the low-cost and high-toughness POK/PP alloy high polymer material of the embodiment comprises the following steps:
the method comprises the following steps: weighing POK, PP, a polar compatilizer, a flexibilizer, an antioxidant, a graphene synergistic chitosan modifier, modified aluminum silicate fibers, a heat stabilizer and a lubricant according to the weight part ratio for later use;
step two: mixing: uniformly mixing POK, PP, a polar compatilizer, a flexibilizer, an antioxidant, a graphene coordinated chitosan modifier, modified aluminum silicate fibers, a heat stabilizer and a lubricant to obtain a mixture; and extruding and granulating the mixture to obtain the low-cost and high-toughness POK/PP alloy material.
The granulation of the embodiment is the granulation of a double-screw extruder, and the temperature of each section of the double-screw extruder is 200-260 ℃, and the rotating speed of a screw is 180-360 rpm.
Example 1
The preparation method of the low-cost and high-toughness POK/PP alloy material comprises the following components in parts by weight: 57.9 parts of POK polyketone, 40 parts of PP polypropylene, 0.8 part of antioxidant, 0.3 part of heat stabilizer and 1.0 part of lubricant;
the preparation process comprises the following steps:
the POK, the PP, the antioxidant, the heat stabilizer and the lubricant are added into a high-speed mixer according to the proportion and mixed for 3min at the temperature of 40 ℃, and then the uniformly mixed materials are extruded and granulated by a double-screw extruder. The temperature of the extruder is set as follows: 200 ℃, 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃, 220 ℃, and 230rpm, the screw speed is set to 230rpm.
Example 2
The preparation method of the low-cost and high-toughness POK/PP alloy material comprises the following components in parts by weight: 52.9 parts of POK polyketone, 40 parts of PP polypropylene, 5 parts of polar compatilizer, 0.8 part of antioxidant, 0.3 part of heat stabilizer and 1.0 part of lubricant;
the preparation process comprises the following steps:
the POK, the PP, the polar compatilizer, the antioxidant, the heat stabilizer and the lubricant are added into a high-speed mixer according to the proportion and mixed for 3min at the temperature of 40 ℃, and then the uniformly mixed materials are extruded and granulated by a double-screw extruder. The temperature of the extruder is set as follows: 200 ℃, 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃, 220 ℃, and 230rpm, the screw speed is set to 230rpm.
Example 3
The preparation method of the low-cost and high-toughness POK/PP alloy material comprises the following components in parts by weight: 44.9 parts of POK polyketone, 40 parts of PP polypropylene, 5 parts of polar compatilizer, 8 parts of flexibilizer, 0.8 part of antioxidant, 0.3 part of heat stabilizer and 1.0 part of lubricant;
the preparation process comprises the following steps:
the POK, the PP, the polar compatilizer, the flexibilizer, the antioxidant, the heat stabilizer and the lubricant are added into a high-speed mixer according to the proportion and mixed for 3min at the temperature of 40 ℃, and then the uniformly mixed materials are extruded and granulated by a double-screw extruder. The temperature of the extruder is set as follows: 200 ℃, 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃, 220 ℃, the screw speed is set as 230rpm.
Example 4
The preparation method of the low-cost and high-toughness POK/PP alloy material comprises the following components in parts by weight: 37.9 parts of POK polyketone, 40 parts of PP polypropylene, 5 parts of polar compatilizer, 15 parts of flexibilizer, 0.8 part of antioxidant, 0.3 part of heat stabilizer and 1.0 part of lubricant;
the preparation process comprises the following steps:
the POK, the PP, the polar compatilizer, the flexibilizer, the antioxidant, the heat stabilizer and the lubricant are added into a high-speed mixer according to the proportion and mixed for 3min at the temperature of 40 ℃, and then the uniformly mixed materials are extruded and granulated by a double-screw extruder. The temperature of the extruder is set as follows: 200 ℃, 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃, 220 ℃, the screw speed is set as 230rpm.
Example 5
The preparation method of the low-cost and high-toughness POK/PP alloy material comprises the following components in parts by weight: 37.9 parts of PP (polypropylene), 40 parts of self-made polar compatilizer, 7 parts of flexibilizer, 0.8 part of antioxidant, 0.3 part of heat stabilizer and 1.0 part of lubricant;
the preparation process comprises the following steps:
the POK, the PP, the polar compatilizer, the flexibilizer, the antioxidant, the heat stabilizer and the lubricant are added into a high-speed mixer according to the proportion and mixed for 3min at the temperature of 40 ℃, and then the uniformly mixed materials are extruded and granulated by a double-screw extruder. The temperature of the extruder is set as follows: 200 ℃, 210 ℃, 220 ℃, 230 ℃, 240 ℃, 250 ℃, 240 ℃, 230 ℃, 220 ℃, the screw speed is set as 230rpm.
The results of the low-cost and high-toughness POK/PP alloy materials prepared in examples 1-5 are shown in Table 1;
TABLE 1 test results
Compared with the examples 1 and 2, the toughness, the elongation and other properties of the material can be obviously improved after the polar compatilizer is added; comparing examples 2, 3 and 4, it can be seen that increasing the addition amount of the toughening agent can further improve the toughness of the material, but when the addition amount is more than 15%, the improvement of the toughness is limited. Comparing examples 4 and 5, it can be found that the toughness of the material can be further improved by replacing the polar compatilizer, the notch impact strength and the flexural modulus of the obtained material are obviously improved, and other properties are correspondingly improved.
Optimization example 1
On the basis of the embodiment 2,4 parts of graphene is added to cooperate with 4 parts of chitosan modifier and 3 parts of modified aluminum silicate fiber.
The preparation method of the graphene synergistic chitosan modifier comprises the following steps:
s11: placing 12.5 parts of graphene, 2 parts of yttrium oxide and 4.5 parts of hydroxyapatite in a stirrer, and fully stirring and mixing to obtain a graphene composite material;
s12: adding chitosan into a sodium dodecyl sulfate solution according to the weight ratio of 1;
s13: mixing the graphene composite material and the chitosan modified solution according to the weight ratio of 1;
s14: and (3) carrying out heat treatment on the product of the S13 at 155 ℃ for 30min, and naturally cooling to room temperature after the heat treatment is finished to obtain the graphene synergistic chitosan modifier.
The conditions of the stirring reaction treatment of S13 are as follows: stirring at 60 deg.C for 25min, with stirring speed of 600r/min.
The mass fractions of the lanthanum chloride solution and the lauryl sodium sulfate solution are 7.5 percent and 18 percent respectively.
The modification method of the modified aluminum silicate fiber comprises the following steps:
15 parts of aluminum silicate fiber is sent into 35 parts of hydrochloric acid solution with the mass fraction of 3% to be soaked for 25min, then 2 parts of potassium acetate solution with the mass fraction of 5% and 2 parts of sodium oxalate are added to react at 45 ℃ for 25min, the reaction speed is 350r/min, and after the reaction is finished, the modified aluminum silicate fiber is obtained by washing and drying.
According to the invention, the added graphene is cooperated with the chitosan modifier and the modified aluminum silicate fiber, so that the raw materials of the graphene and the modified aluminum silicate fiber have a synergistic effect, the toughness and strength performance effects of the product are enhanced, and the use efficiency of the product 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 attributes 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A low-cost and high-toughness POK/PP alloy high polymer material is characterized by comprising the following raw materials in parts by weight:
39.15 to 69.15 portions of POK polyketone, 20 to 50 portions of PP polypropylene, 5 to 10 portions of polar compatilizer, 5 to 10 portions of toughener, 0.3 to 1 portion of antioxidant, 0.05 to 0.5 portion of heat stabilizer and 0.5 to 2.0 portions of lubricant.
2. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 1, wherein the alloy high polymer material comprises the following raw materials in parts by weight:
45 parts of POK polyketone, 35 parts of PP polypropylene, 7.5 parts of polar compatilizer, 7.5 parts of flexibilizer, 0.65 part of antioxidant, 2.5 parts of heat stabilizer and 1.2 parts of lubricant.
3. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 1, wherein 2-6 parts of graphene coordinated chitosan modifier and 1-5 parts of modified aluminum silicate fiber are further added to the alloy high polymer material.
4. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 3, wherein the preparation method of the graphene coordinated chitosan modifier comprises the following steps:
s11: firstly, placing 10-15 parts of graphene, 1-3 parts of yttrium oxide and 3-6 parts of hydroxyapatite in a stirrer, and fully stirring and mixing to obtain a graphene composite material;
s12: adding chitosan into a sodium dodecyl sulfate solution according to the weight ratio of 1;
s13: mixing the graphene composite material and the chitosan modified solution according to the weight ratio of 1;
s14: and (3) carrying out heat treatment on the product of the S13 at the temperature of 150-160 ℃ for 25-35min, and naturally cooling to room temperature after the heat treatment is finished to obtain the graphene coordinated chitosan modifier.
5. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 4, wherein the conditions of the S13 stirring reaction treatment are as follows: stirring at 55-65 deg.C for 20-30min at 550-650r/min.
6. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 4, wherein the mass fractions of the lanthanum chloride solution and the sodium dodecyl sulfate solution are 5-10% and 15-20%, respectively.
7. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 3, wherein the modification method of the modified aluminum silicate fiber is as follows:
10-20 parts of aluminum silicate fiber are sent into 30-40 parts of hydrochloric acid solution with the mass fraction of 3% to be soaked for 20-30min, then 1-3 parts of potassium acetate solution with the mass fraction of 5% and 1-3 parts of sodium oxalate are added, then the mixture reacts at 40-50 ℃ for 20-30min, the reaction rotating speed is 300-400r/min, and after the reaction is finished, the mixture is washed and dried to obtain the modified aluminum silicate fiber.
8. The POK/PP alloy high polymer material with low cost and high toughness as claimed in claim 1, wherein the polyketone POK is a polymer synthesized by carbon monoxide and olefin (ethylene and propylene); specifically, the copolymer of carbon monoxide and ethylene, carbon monoxide and propylene, or carbon monoxide and ethylene and propylene, preferably the copolymer of carbon monoxide and ethylene and propylene, aliphatic or aromatic, the number average molecular weight is 10000-100000, preferably the molecular weight is 60000-90000, and specifically, high-impact M620A, M630A, M710A, M730A and the like of Korea star high-flow grades can be selected;
the polypropylene PP is a propylene polymerized high polymer and contains block copolymer polypropylene, random copolymer polypropylene and homopolymerized polypropylene, and block copolymer polypropylene is preferred;
the polar compatilizer is formed by compounding one or more of PP grafted maleic anhydride, PP grafted glycidyl acrylate, POE grafted maleic anhydride, POE grafted glycidyl acrylate, ethylene-maleic anhydride copolymer, ethylene-glycidyl acrylate copolymer, ethylene-butadiene-styrene ternary block copolymer grafted maleic anhydride, ethylene-butadiene-styrene ternary block copolymer grafted glycidyl acrylate and the like;
the toughening agent is formed by compounding one or more of ethylene-methyl acrylate copolymer, ethylene-butyl acrylate copolymer, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene acrylate copolymer grafted maleic anhydride, ethylene acrylate copolymer grafted glycidyl acrylate, core-shell structure MBS toughening agent, styrene-butadiene-styrene ternary block copolymer, hydrogenated SEBS and polyurethane elastomer;
the antioxidant is one or more of diphosphines such as pentaerythritol tetrakis [ methyl- (3, 5-di-t-butyl-4-hydroxyphenyl) propionate ], N ' -1, 6-hexylene-bis [3- (3, 5-di-t-butyl-4-hydroxyphenyl) propionamide ], N-octadecyl 3, 5-di-t-butyl-4-hydroxyphenyl propionate, 1,3, 5-tris (4-t-butyl-3-hydroxy-2, 6-dimethylbenzyl) -1,3, 5-triazine-2, 4,6- (1h, 3h, 5h) trione, triethylene glycol bis [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionate ], 2' -methylenebis (4-methyl-6-t-butylphenol), tris (2, 4-di-t-butylphenyl) phosphite, bis (2, 4-di-t-butylphenyl) pentaerythritol diphosphite, dioctadecyl pentaerythritol diphosphite, tetrakis (2, 4-di-t-butylphenyl-4, 4' -biphenyl) phosphite;
the heat stabilizer is any one of calcium stearate, zinc stearate, calcium ricinoleate, zinc ricinoleate or epoxidized soybean oil; the lubricant is formed by compounding one or more of polyethylene wax, N '-ethylene bisstearamide, organic silicon oil, oleamide, ethylene bisoleamide, N' -ethylene bisstearamide-grafted maleic anhydride, silicone powder, fluorine-containing lubricant and the like.
9. A method for preparing a low-cost and high-toughness POK/PP alloy high polymer material as claimed in any one of claims 1 to 8, which comprises the following steps:
the method comprises the following steps: weighing POK, PP, a polar compatilizer, a flexibilizer, an antioxidant, a graphene coordinated chitosan modifier, modified aluminum silicate fibers, a heat stabilizer and a lubricant according to the weight part ratio for later use;
step two: mixing: uniformly mixing POK, PP, a polar compatilizer, a flexibilizer, an antioxidant, a graphene coordinated chitosan modifier, modified aluminum silicate fibers, a heat stabilizer and a lubricant to obtain a mixture; and extruding and granulating the mixture to obtain the low-cost and high-toughness POK/PP alloy material.
10. The method for preparing the POK/PP alloy high polymer material with low cost and high toughness according to the claim 9, wherein the granulation is carried out by a double-screw extruder, the temperature of each section of the double-screw extruder is 200-260 ℃, and the rotating speed of the screw is 180-360 rpm.
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