CN115466465B - Aging-resistant TPX film and preparation method thereof - Google Patents
Aging-resistant TPX film and preparation method thereof Download PDFInfo
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- C08J5/18—Manufacture of films or sheets
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- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/18—Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
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- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
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- C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2427/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2427/16—Homopolymers or copolymers of vinylidene fluoride
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
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Abstract
The application relates to an aging-resistant TPX film and a preparation method thereof, which belong to the technical field of preparation of TPX film materials, and the aging-resistant TPX film comprises the following components in parts by mass: 100 parts of poly (4-methylpentene); 10-20 parts of a first mixture containing ethylene propylene diene monomer; 5-10 parts of polyvinylidene fluoride; 1-5 parts of glass fiber; 1-4 parts of vulcanizing agent; 1-2 parts of silane coupling agent and 4-6 parts of compatilizer. According to the aging-resistant TPX film, materials (EPDM and PVDF) with similar structures and better aging resistance are introduced into a resin system to improve the aging resistance of a resin matrix, so that the technical problem that the existing TPX film has poor aging resistance is effectively solved.
Description
Technical Field
The application relates to the technical field of preparation of TPX film materials, in particular to an aging-resistant TPX film and a preparation method thereof.
Background
TPX, a polymer of 4-methylpentene-1, chinese name poly (4-methylpentene), has a specific gravity of 0.83, and is the lightest of all plastics, and has high temperature resistance, good transparency, good chemical resistance, strong impact resistance, and light transmittance between organic glass and polystyrene. Common processing techniques are injection molding, blow molding and extrusion. Has wide application in electric parts, microwave oven cutlery box, medical apparatus and instruments and film industry. However, TPX has poor aging resistance and environmental resistance, and the TPX product is easy to yellow after illumination, which seriously affects the service life and the service cycle of the TPX product.
Disclosure of Invention
The application provides an aging-resistant TPX film and a preparation method thereof, which are used for solving the technical problem that the existing TPX film has poor aging resistance.
In a first aspect, the application provides an aging-resistant TPX film, which comprises the following components in parts by mass:
100 parts of poly (4-methylpentene); 10-20 parts of a first mixture containing ethylene propylene diene monomer; 5-10 parts of polyvinylidene fluoride; 1-5 parts of glass fiber; 1-4 parts of vulcanizing agent; 1-2 parts of silane coupling agent and 4-6 parts of compatilizer.
Further, the first mixture containing ethylene propylene diene monomer is prepared from the following components in percentage by weight: (4-7): the ethylene propylene diene monomer rubber of (1-2), an activator and an accelerator.
Further, the activator includes at least one of zinc oxide and stearic acid.
Further, the activator consists of zinc oxide and stearic acid with the weight ratio of (3-5) to (1-2).
Further, the accelerator includes at least one of accelerator EG-3, accelerator TBBS, accelerator TMTD, and accelerator M.
Further, the aging-resistant TPX film further comprises, in parts by mass: 0.1-1 part of antioxidant; light stabilizer 770, 0.1-0.5 and UV absorber 0.1-0.5.
Further, the UV absorber includes at least one of UV326, UV531 and UV-P.
In a second aspect, the present application provides a method for preparing the anti-aging TPX film according to any one of the embodiments of the first aspect, the method comprising:
firstly mixing ethylene propylene diene monomer, an activating agent and an accelerating agent, and then slicing to obtain a first mixture containing ethylene propylene diene monomer;
the first mixture containing ethylene propylene diene monomer, poly (4-methylpentene), polyvinylidene fluoride, vulcanizing agent, glass fiber, antioxidant, light stabilizer 770, UV absorber, silane coupling agent and compatilizer are subjected to second mixing to obtain a second mixture;
and extruding and casting the second mixture to form a film to obtain the aging-resistant TPX film.
Further, the working parameters of the extrusion casting include: the machine barrel adopts 5 sections of programming temperature, and is specifically: barrel temperature: 220-230 ℃, 240-250 ℃, 250-260 ℃, 265-275 ℃ and 275-285 ℃; the die adopts 3 sections of programming temperature, and is specifically: die temperature: 250-260 ℃, 270-280 ℃ and 280-290 ℃.
Further, the operating parameters of the second mix include: the mixing temperature is 100-150 ℃.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the embodiment of the application provides an aging-resistant TPX film, which improves the aging resistance of a resin matrix by introducing materials (EPDM and PVDF) with similar structures and more excellent aging resistance into a resin system. Ethylene Propylene Diene Monomer (EPDM) is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, and has excellent ozone resistance, heat resistance, weather resistance and other aging resistance. Polyvinylidene fluoride (PVDF) is fluoroplastic with very excellent processability, and the special molecular structure of the PVDF is superior to that of the PVDF, so that the PVDF has very excellent UV resistance and ageing resistance in high and low temperature resistance, and the technical problem of poor ageing resistance of the conventional TPX film is effectively solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic flow chart of a preparation method of an anti-aging TPX film according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present application are commercially available or may be prepared by existing methods.
TPX, a polymer of 4-methylpentene-1, chinese name poly (4-methylpentene), has a specific gravity of 0.83, and is the lightest of all plastics, and has high temperature resistance, good transparency, good chemical resistance, strong impact resistance, and light transmittance between organic glass and polystyrene. Common processing techniques are injection molding, blow molding and extrusion. Has wide application in electric parts, microwave oven cutlery box, medical apparatus and instruments and film industry. However, TPX has poor aging resistance and environmental resistance, and the TPX product is easy to yellow after illumination, which seriously affects the service life and the service cycle of the TPX product.
The technical scheme provided by the embodiment of the application aims to solve the technical problems, and the overall thought is as follows:
according to a first aspect, the application provides an aging-resistant TPX film, which comprises the following components in parts by mass:
100 parts of poly (4-methylpentene); 10-20 parts of a first mixture containing ethylene propylene diene monomer; 5-10 parts of polyvinylidene fluoride; 1-5 parts of glass fiber; 1-4 parts of vulcanizing agent; 1-2 parts of silane coupling agent and 4-6 parts of compatilizer.
The embodiment of the application provides an aging-resistant TPX film, which improves the aging resistance of a resin matrix by introducing materials (EPDM and PVDF) with similar structures and more excellent aging resistance into a resin system. Ethylene Propylene Diene Monomer (EPDM) is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, and has excellent ozone resistance, heat resistance, weather resistance and other aging resistance. Polyvinylidene fluoride (PVDF) is fluoroplastic with very excellent processability, and the special molecular structure of the PVDF is superior to that of the PVDF, so that the PVDF has very excellent UV resistance and ageing resistance in high and low temperature resistance, and the technical problem of poor ageing resistance of the conventional TPX film is effectively solved.
In some embodiments, the silane coupling agent is preferably KH550 and the compatibilizing agent is preferably PP-g-MAH.
As an implementation mode of the embodiment of the application, the first mixture containing ethylene propylene diene monomer is prepared from the following components in percentage by weight: (4-7): the ethylene propylene diene monomer rubber of (1-2), an activator and an accelerator.
According to the application, ethylene propylene diene monomer, an activating agent and an accelerating agent are mixed according to the weight ratio of 100: (4-7): (1-2) to obtain a first mixture containing ethylene propylene diene monomer, which is favorable for the stability and the reaction activity of the whole resin matrix system, thereby further improving the ageing resistance of the TPX film.
As an embodiment of the present embodiment, the activator includes at least one of zinc oxide and stearic acid.
As an implementation mode of the embodiment of the application, the activating agent consists of zinc oxide and stearic acid in the weight ratio of (3-5): (1-2).
As an implementation of the embodiment of the present application, the accelerator includes at least one of accelerator EG-3, accelerator TBBS, accelerator TMTD and accelerator M.
As an implementation mode of the embodiment of the present application, the aging-resistant TPX film further includes, in parts by weight: 0.1-1 part of antioxidant; light stabilizer 770, 0.1-0.5 and UV absorber 0.1-0.5.
In the application, in order to improve the ageing resistance of the TPX film material, the method starts from two aspects: on the one hand, from the material itself, materials (EPDM and PVDF) with similar structures but better aging resistance are considered to be introduced into the resin system to improve the aging resistance of the resin matrix. Ethylene Propylene Diene Monomer (EPDM) is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, and has excellent ozone resistance, heat resistance, weather resistance and other aging resistance. Polyvinylidene fluoride (PVDF) is a fluoroplastic with very excellent processability, and the special molecular structure of the PVDF is superior to that of the PVDF, so that the PVDF has very excellent UV resistance and ageing resistance in high and low temperature resistance.
On the other hand, from the external environment, the damage of the external environment to the TPX polymer product is further reduced by selecting proper light stabilizer 770, UV absorber and antioxidant and combining the formula and the addition amount of various auxiliary agents.
In conclusion, the anti-aging performance of the TPX polymer material is synergistically enhanced through blending enhancement of the TPX resin system and reduction of damage of the additive to the external environment.
In some embodiments, the antioxidant is preferably antioxidant 1010.
As an implementation of the embodiment of the present application, the UV absorber includes at least one of UV326, UV531 and UV-P.
In a second aspect, the present application provides a method for preparing the anti-aging TPX film according to any one of the embodiments of the first aspect, as shown in fig. 1, the method comprising:
firstly mixing ethylene propylene diene monomer, an activating agent and an accelerating agent, and then slicing to obtain a first mixture containing ethylene propylene diene monomer;
the first mixture containing ethylene propylene diene monomer, poly (4-methylpentene), polyvinylidene fluoride, vulcanizing agent, glass fiber, antioxidant, light stabilizer 770, UV absorber, silane coupling agent and compatilizer are subjected to second mixing to obtain a second mixture;
and extruding and casting the second mixture to form a film to obtain the aging-resistant TPX film.
The embodiment of the application provides a preparation method of an aging-resistant TPX film, which does not need extra special equipment, is simple to operate and can realize mass production.
As an implementation of the embodiment of the present application, the working parameters of extrusion casting include: the machine barrel adopts 5 sections of programming temperature, and is specifically: barrel temperature: 220-230 ℃, 240-250 ℃, 250-260 ℃, 265-275 ℃ and 275-285 ℃; the die adopts 3 sections of programming temperature, and is specifically: die temperature: 250-260 ℃, 270-280 ℃ and 280-290 ℃.
As an implementation of the embodiment of the present application, the working parameters of the second mixture include: the mixing temperature is 100-150 ℃.
In some embodiments, the preparation process of the aging-resistant TPX film specifically includes:
step 1: firstly plasticating EPDM (100 mass) in an internal mixer at 100-120 ℃ for 10min, then adding a certain proportion of activator and accelerator to blend for 30min, and then transferring the mixture into an open mill to slice the EPDM plasticated rubber for standby. (activator: 3-5 parts of Zinc oxide, 1-2 parts of stearic acid) (one of accelerator EG-3, accelerator TBBS, accelerator TMTD and accelerator M, used in an amount of 1-2 parts)
Step 2: and (2) uniformly mixing TPX, EPDM, PVDF powder in the step (1), a vulcanizing agent, glass fiber, an antioxidant, a light stabilizer 770, a UV absorber, a silane coupling agent and a compatilizer according to a certain formula ratio by a high-speed mixer. ( 100 parts of TPX, 10-20 parts of EPDM in step 1, 5-10 parts of PVDF and a vulcanizing agent: 1-2 parts of sulfur or 3-4 parts of dicumyl peroxide, 1-5 parts of glass fiber, 0.1-1 part of antioxidant 1010, 0.1-0.5 part of light stabilizer 770, 0.1-0.5 part of UV326, UV531 and UV-P, 1-2 parts of KH550 and 4-6 parts of compatilizer PP-g-MAH. Mixing for 30min at the temperature of 100-150 ℃ and the rotating speed of 800-1000 rpm/min. )
Step 3: the mixture in the step 2 is formed into a film by an extrusion casting process, and the film is subjected to an aging resistance test (an ultraviolet aging box simulation test). Barrel 5 stage programmed temperature, barrel temperature 220-230 ℃, 240-250 ℃, 250-260 ℃, 265-275 ℃ and 275-285 ℃.3 sections of programming temperature of the die, and the die temperature: 250-260 ℃, 270-280 ℃ and 280-290 ℃.
The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. The experimental procedures, which are not specified in the following examples, are generally determined according to national standards. If the corresponding national standard does not exist, the method is carried out according to the general international standard, the conventional condition or the condition recommended by the manufacturer.
Example 1
The embodiment of the application provides an aging-resistant TPX film, which comprises the following raw materials in parts by mass:
step 1: firstly plasticating 100 parts of EPDM in an internal mixer at 100 ℃ for 10min, then adding 3 parts of zinc oxide, 1 part of stearic acid and 1 part of accelerator TMTD, blending for 30min, and then transferring to an open mill for slicing EPDM plasticated rubber for standby.
Step 2: 100 parts of TPX, 10 parts of EPDM in the step 1, 5 parts of PVDF powder, 1 part of sulfur, 2 parts of glass fiber, 0.2 part of antioxidant 1010, 0.2 part of light stabilizer 770, 0.1 part of UV326, 550 parts of silane coupling agent KH and 4 parts of compatilizer PP-g-MAH are uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 100 ℃, and the rotating speed is controlled at 800rpm/min for mixing for 30min.
Step 3: forming a film from the materials mixed according to the fixed formula in the step 2 through an extrusion casting process to obtain an aging-resistant TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 220 ℃, 240 ℃, 250 ℃, 265 ℃ and 275 ℃.3 sections of programming temperature of the die, and the die temperature: 250 ℃, 270 ℃ and 280 ℃.
Example 2
The embodiment of the application provides an aging-resistant TPX film, which comprises the following raw materials in parts by mass:
step 1: firstly plasticating 100 parts of EPDM in an internal mixer at 100 ℃ for 10min, then adding 4 parts of zinc oxide, 2 parts of stearic acid and 2 parts of accelerator TMTD for blending for 30min, and then transferring the mixture into an open mill for slicing EPDM plasticated rubber for standby.
Step 2: 100 parts of TPX, 10 parts of EPDM in the step 1, 10 parts of PVDF powder, 2 parts of sulfur, 2 parts of glass fiber, 0.2 part of antioxidant 1010, 0.2 part of light stabilizer 770, 0.1 part of UV326, 550 parts of silane coupling agent KH and 4 parts of compatilizer PP-g-MAH are uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 100 ℃, and the rotating speed is controlled at 800rpm/min for mixing for 30min.
Step 3: forming a film from the materials mixed according to the fixed formula in the step 2 through an extrusion casting process to obtain an aging-resistant TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 220 ℃, 240 ℃, 250 ℃, 265 ℃ and 275 ℃.3 sections of programming temperature of the die, and the die temperature: 250 ℃, 270 ℃ and 280 ℃.
Example 3
The embodiment of the application provides an aging-resistant TPX film, which comprises the following raw materials in parts by mass:
step 1: 100 parts of EPDM is plasticated in an internal mixer at 120 ℃ for 10min, 4 parts of zinc oxide, 2 parts of stearic acid and 2 parts of accelerator EG-3 are added to be blended for 30min, and then the mixture is transferred into an open mill for slicing EPDM plasticated rubber for standby.
Step 2: 100 parts of TPX, 15 parts of EPDM in the step 1, 10 parts of PVDF powder, 2 parts of sulfur, 2 parts of glass fiber, 0.2 part of antioxidant 1010, 0.2 part of light stabilizer 770, 0.1 part of UV326, 550 parts of silane coupling agent KH and 4 parts of compatilizer PP-g-MAH are uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 120 ℃, and the rotating speed is controlled at 800rpm/min for mixing for 30min.
Step 3: forming a film from the materials mixed according to the fixed formula in the step 2 through an extrusion casting process to obtain an aging-resistant TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 220 ℃, 240 ℃, 250 ℃, 265 ℃ and 275 ℃.3 sections of programming temperature of the die, and the die temperature: 250 ℃, 270 ℃ and 280 ℃.
Example 4
The embodiment of the application provides an aging-resistant TPX film, which comprises the following raw materials in parts by mass:
step 1: 100 parts of EPDM is plasticated in an internal mixer at 120 ℃ for 10min, 4 parts of zinc oxide, 2 parts of stearic acid and 2 parts of accelerator EG-3 are added to be blended for 30min, and then the mixture is transferred into an open mill for slicing EPDM plasticated rubber for standby.
Step 2: 100 parts of TPX, 15 parts of EPDM in the step 1, 10 parts of PVDF powder, 4 parts of dicumyl peroxide, 2 parts of glass fiber, 0.5 part of antioxidant 1010, 0.5 part of light stabilizer 770, 0.3 part of UV326, 550 parts of silane coupling agent KH 1 and 4 parts of compatilizer PP-g-MAH are uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 120 ℃, and the rotating speed is controlled at 800rpm/min for mixing for 30min.
Step 3: forming a film from the materials mixed according to the fixed formula in the step 2 through an extrusion casting process to obtain an aging-resistant TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 220 ℃, 240 ℃, 250 ℃, 265 ℃ and 275 ℃.3 sections of programming temperature of the die, and the die temperature: 250 ℃, 270 ℃ and 280 ℃.
Example 5
The embodiment of the application provides an aging-resistant TPX film, which comprises the following raw materials in parts by mass:
step 1: 100 parts of EPDM is plasticated in an internal mixer at 120 ℃ for 10min, 4 parts of zinc oxide, 2 parts of stearic acid and 2 parts of accelerator EG-3 are added to be blended for 30min, and then the mixture is transferred into an open mill for slicing EPDM plasticated rubber for standby.
Step 2: 100 parts of TPX, 15 parts of EPDM in the step 1, 10 parts of PVDF powder, 2 parts of sulfur, 2 parts of glass fiber, 0.5 part of antioxidant 1010, 0.5 part of light stabilizer 770, 0.3 part of UV531, 550 parts of silane coupling agent KH and 4 parts of compatilizer PP-g-MAH are uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 120 ℃, and the rotating speed is controlled at 1000rpm/min for mixing for 30min.
Step 3: forming a film from the materials mixed according to the fixed formula in the step 2 through an extrusion casting process to obtain an aging-resistant TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 230 ℃, 245 ℃, 260 ℃, 270 ℃ and 280 ℃.3 sections of programming temperature of the die, and the die temperature: 260 ℃, 280 ℃ and 290 ℃.
Comparative example 1
The example provides a TPX film, which comprises the following raw materials in parts by mass:
100 parts of TPX and 2 parts of glass fiber were uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 120 ℃, and the rotating speed is controlled at 1000rpm/min for mixing for 30min. Forming a film from the mixed materials through an extrusion casting process to obtain a TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 220 ℃, 240 ℃, 250 ℃, 265 ℃ and 275 ℃.3 sections of programming temperature of the die, and the die temperature: 250 ℃, 270 ℃ and 280 ℃.
Comparative example 2
The example provides a TPX film, which comprises the following raw materials in parts by mass:
100 parts of TPX, 2 parts of glass fiber, 0.5 part of antioxidant 1010, 0.5 part of light stabilizer 770 and 0.3 part of UV531 are uniformly mixed by a high-speed mixer. The temperature of the high-speed mixer is controlled at 120 ℃, and the rotating speed is controlled at 1000rpm/min for mixing for 30min. Forming a film from the mixed materials through an extrusion casting process to obtain a TPX film; wherein, the temperature of the machine barrel is programmed in the 5-stage machine barrel, and the temperature of the machine barrel is 220 ℃, 240 ℃, 250 ℃, 265 ℃ and 275 ℃.3 sections of programming temperature of the die, and the die temperature: 250 ℃, 270 ℃ and 280 ℃.
Test case
This example was subjected to an aging resistance test on the TPX films obtained in examples 1 to 5 and comparative examples 1 to 2, and the test results are shown in Table 1.
Test description: placing the prepared TPX film in a UV aging test box for aging resistance simulation test, and recording the time for starting yellowing of the film for comparison; ageing oven test parameters: the temperature is 60 ℃, the illumination temperature is 40 ℃, the ultraviolet wavelength range is 315-400nm, and the ultraviolet radiation intensity is 2.0w/m 2 . (yellowing time: time at which the TPX film starts to yellow on the film surface in the ultraviolet aging oven under the condition, observation of the TPX film was carried out every 2 hours of the test)
TABLE 1
In summary, the aging resistance of the TPX polymer material is synergistically enhanced by blending enhancement of the TPX resin system and reduction of damage of the additive to the external environment, and the aging resistance time can be increased from 8 hours to 22 hours by simply adding the light stabilizer 770, the UV absorber and the antioxidant to the resin, and the aging resistance time is increased from 8 hours to 64 hours by blending enhancement of the TPX resin system by using the EPDM and the PVDF.
Various embodiments of the application may exist in a range of forms; it should be understood that the description in a range format is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of the application; it is therefore to be understood that the range description has specifically disclosed all possible sub-ranges and individual values within that range. For example, it should be considered that a description of a range from 1 to 6 has specifically 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, wherever applicable. In addition, whenever a numerical range is referred to herein, it is meant to include any reference number (fractional or integer) within the indicated range.
In the present application, unless otherwise specified, terms such as "upper" and "lower" are used specifically to refer to the orientation of the drawing in the figures. In addition, in the description of the present specification, the terms "include", "comprising" and the like mean "including but not limited to". Relational terms such as "first" and "second", and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Herein, "and/or" describing an association relationship of an association object means that there may be three relationships, for example, a and/or B, may mean: a alone, a and B together, and B alone. Wherein A, B may be singular or plural. Herein, "at least one" means one or more, and "a plurality" means two or more. "at least one", "at least one" or the like refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, "at least one (individual) of a, b, or c," or "at least one (individual) of a, b, and c," may each represent: a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple, respectively.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An aging-resistant TPX film is characterized by comprising the following components in parts by mass:
100 parts of poly (4-methylpentene); 10-20 parts of a first mixture containing ethylene propylene diene monomer; 5-10 parts of polyvinylidene fluoride; 1-5 parts of glass fiber; 1-4 parts of vulcanizing agent; 1-2 parts of silane coupling agent and 4-6 parts of compatilizer;
the first mixture containing ethylene propylene diene monomer is prepared from the following components in percentage by weight: (4-7): the ethylene propylene diene monomer rubber of (1-2), an activator and an accelerator.
2. The aging resistant TPX film of claim 1, wherein the activator comprises at least one of zinc oxide and stearic acid.
3. The aging resistant TPX film of claim 2, wherein the activator consists of zinc oxide and stearic acid in a weight ratio of (3-5): (1-2).
4. The aging resistant TPX film of claim 1, wherein the promoter comprises at least one of promoter EG-3, promoter TBBS, promoter TMTD, and promoter M.
5. The aging resistant TPX film according to any one of claims 1 to 4, further comprising, in parts by mass: 0.1-1 part of antioxidant; light stabilizer 770, 0.1-0.5 and UV absorber 0.1-0.5.
6. The aging resistant TPX film of claim 5, wherein the UV absorber comprises at least one of UV326, UV531, and UV-P.
7. A method of making an aging resistant TPX film according to any one of claims 1 to 6, comprising:
firstly mixing ethylene propylene diene monomer, an activating agent and an accelerating agent, and then slicing to obtain a first mixture containing ethylene propylene diene monomer;
the first mixture containing ethylene propylene diene monomer, poly (4-methylpentene), polyvinylidene fluoride, vulcanizing agent, glass fiber, antioxidant, light stabilizer 770, UV absorber, silane coupling agent and compatilizer are subjected to second mixing to obtain a second mixture;
and extruding and casting the second mixture to form a film to obtain the aging-resistant TPX film.
8. The method of preparing an aging resistant TPX film according to claim 7, wherein the operating parameters of the extrusion casting include: the machine barrel adopts 5 sections of programming temperature, and is specifically: barrel temperature: 220-230 ℃, 240-250 ℃, 250-260 ℃, 265-275 ℃ and 275-285 ℃; the die adopts 3 sections of programming temperature, and is specifically: die temperature: 250-260 ℃, 270-280 ℃ and 280-290 ℃.
9. The method of preparing an aging resistant TPX film according to claim 7, wherein the second mixed operating parameters comprise: the mixing temperature is 100-150 ℃.
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| JPH10237241A (en) * | 1997-02-27 | 1998-09-08 | Mitsui Chem Inc | Molded poly-4-methylpentene resin article |
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| CN111748157A (en) * | 2019-03-28 | 2020-10-09 | 合肥杰事杰新材料股份有限公司 | High-transparency modified polyolefin material and preparation method thereof |
| WO2021225813A1 (en) * | 2020-05-05 | 2021-11-11 | Exxonmobil Chemical Patents Inc. | Pipe including a polymethylpentene thermoplastic polymer |
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| CN114957678A (en) * | 2022-07-12 | 2022-08-30 | 宁夏清研高分子新材料有限公司 | High-toughness TPX material, preparation method thereof and compatilizer |
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| JPH10237241A (en) * | 1997-02-27 | 1998-09-08 | Mitsui Chem Inc | Molded poly-4-methylpentene resin article |
| CN104610665A (en) * | 2015-01-27 | 2015-05-13 | 青岛科技大学 | Rubber-plastic mixed composition, dynamically vulcanized thermoplastic elastomer and preparation method thereof |
| CN111748157A (en) * | 2019-03-28 | 2020-10-09 | 合肥杰事杰新材料股份有限公司 | High-transparency modified polyolefin material and preparation method thereof |
| WO2021225813A1 (en) * | 2020-05-05 | 2021-11-11 | Exxonmobil Chemical Patents Inc. | Pipe including a polymethylpentene thermoplastic polymer |
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