CN112940505A - High-temperature-resistant thermoplastic pipe material and preparation method thereof - Google Patents

High-temperature-resistant thermoplastic pipe material and preparation method thereof Download PDF

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Publication number
CN112940505A
CN112940505A CN202110158316.3A CN202110158316A CN112940505A CN 112940505 A CN112940505 A CN 112940505A CN 202110158316 A CN202110158316 A CN 202110158316A CN 112940505 A CN112940505 A CN 112940505A
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resistant thermoplastic
base material
high temperature
temperature resistant
antioxidant
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祝万军
魏平
蒋中友
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Zigong Juyuan High Tech Materials Co ltd
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Zigong Juyuan High Tech Materials Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L81/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur with or without nitrogen, oxygen or carbon only; Compositions of polysulfones; Compositions of derivatives of such polymers
    • C08L81/02—Polythioethers; Polythioether-ethers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
    • C08L71/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
    • C08L71/12—Polyphenylene oxides
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The invention discloses a high-temperature resistant thermoplastic pipe material and a preparation method thereof, wherein the high-temperature resistant thermoplastic pipe material comprises the following components in percentage by weight: 85-90% of first base material, 5-12.5% of second base material, 1-5% of compatilizer, 1-5% of toughening agent, 0.05-2.5% of fluorine modifier and 0.05-0.5% of antioxidant, so as to solve the problems that the existing thermoplastic pipe material is easy to deform and shrink when being transported in liquid or gas with the temperature higher than 100 ℃, and if being transported by adopting a steel pipe, the loading and unloading are difficult and the transportation cost is high.

Description

High-temperature-resistant thermoplastic pipe material and preparation method thereof
Technical Field
The invention relates to a plastic pipe material, in particular to a high-temperature-resistant thermoplastic pipe material and a preparation method thereof.
Background
Most of thermoplastic pipe materials in the existing market are high-density polyethylene, but the pipe materials produced by the high-density polyethylene pipe materials have limited temperature resistance grade and can only be used for conveying liquid or gas with lower temperature. In the case of transporting liquid or gas at a temperature higher than 100 ℃, pipes made of metal materials such as steel are mostly used, but such pipes are heavy, complicated to install and transport, and very expensive to maintain.
Disclosure of Invention
An object of the present invention is to solve the above-mentioned disadvantages, and to provide a high temperature resistant thermoplastic pipe material and a method for manufacturing the same, which are intended to solve the problems that the conventional thermoplastic pipe material is easily deformed and thermally shrunk when transported in a liquid or gas at a temperature higher than 100 ℃, and that handling is difficult and transportation costs are high when transported using a steel pipe.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a high-temperature-resistant thermoplastic pipe material which comprises the following components in percentage by weight: 85-90% of first base material, 5-15% of second base material, 1-5% of compatilizer, 1-5% of toughening agent, 0.05-2.5% of fluorine modifier and 0.05-0.5% of antioxidant.
Preferably, the further technical scheme is as follows: 85% of first base material, 5% of second base material, 2.5% of compatilizer, 2.5% of flexibilizer, 2.5% of fluorine modifier and 0.5% of antioxidant.
The further technical scheme is as follows: 87% of first base material, 10% of second base material, 1% of compatilizer, 1% of flexibilizer, 0.5% of fluorine modifier and 0.5% of antioxidant.
The further technical scheme is as follows: the first base material comprises modified PPS and modified PPO, and the ratio of the modified PPS to the modified PPO is 1: 0.1-3.
The further technical scheme is as follows: the second base material is graft modified SEBS.
The further technical scheme is as follows: the compatilizer is a graft of PPS and PPO.
The further technical scheme is as follows: the toughening agent is any one or the combination of more than two of unsaturated polyester resin, polyamide resin, acetal resin, polysorbate and polyurethane resin.
The further technical scheme is as follows: the antioxidant is antioxidant 1010.
The invention also provides a preparation method of the high-temperature-resistant thermoplastic pipe material, which comprises the following steps: step S1, drying the first base material and the second base material, uniformly mixing and putting into a kneading machine, wherein the temperature in the kneading machine is 150-220 ℃, the stirring speed is 30-60 r/min, and the stirring time is 0.5-1 h; step S2, adjusting the temperature of the kneader to 90-120 ℃, adding the toughening agent into the kneader, and stirring for 2-4 h at a stirring speed of 20-40 r/min; step S3, adding a compatilizer and a fluorine modifier into a kneading machine, adjusting the temperature of the kneading machine to be 150-220 ℃, stirring for 3-6 hours, and stirring at a rotating speed of 20-40 r/min; step S4, adding an antioxidant into the mixture for 1-3 hours under the condition of stirring based on the step S3, and cooling the mixture to 16-24 ℃; and S5, performing double-screw extrusion modification granulation on the material cooled in the S4 to prepare the high-temperature-resistant thermoplastic pipe material.
The further technical scheme is as follows: in the step S3, adding epoxy resin, wherein the mass ratio of the epoxy resin to the compatilizer is 1: 2-6.
Compared with the prior art, the invention has the following beneficial effects: the modified PPS and the modified PPO are used as a first base material, the graft modified SEBS is used as a second base material, the elongation and the flexural modulus of a finished material are improved, and the compatilizer, the flexibilizer, the fluorine modifier and the antioxidant are respectively added, so that the tensile property, the Vicat softening temperature, the elongation and the flexural modulus of the high-temperature resistant thermoplastic pipe are greatly improved, the pipe produced by the material can be used for conveying liquid or solid above 100 ℃ for a long time, and the installation and maintenance cost is lower; and the material belongs to thermoplastic materials, so that the material can be recycled and does not pollute the environment.
Detailed Description
The invention is further illustrated below.
The invention provides a high-temperature-resistant thermoplastic pipe material which comprises the following components in percentage by weight: 85-90% of first base material, 5-15% of second base material, 1-5% of compatilizer, 1-5% of toughening agent, 0.05-2.5% of fluorine modifier and 0.05-0.5% of antioxidant.
The first base material comprises modified PPS and modified PPO, and the ratio of the modified PPS to the modified PPO is 1: 0.1-3.
In addition, the second base material is graft modified SEBS, and it is noted that the SEBS has the characteristics of outstanding low-temperature toughness and good elasticity, the graft modified SEBS can obviously improve the compatibility between nonpolar polyolefin and polar substances, improve the tensile strength and the bending strength, and the graft modified SEBS improves the compatibility of each component and the impact strength; and the compatilizer is a graft of PPS and PPO.
The graft modified SEBS can be prepared by a solution grafting or melt grafting method, and is uniformly mixed with a first base material and put into a kneader for stirring, so that the toughness of PPO and PPS is improved, and the elongation and flexural modulus of a produced finished product are improved.
The PPS has the short-term thermal deformation temperature of 260 ℃, high thermal stability and good chemical corrosion resistance below 200 ℃, has high strength and high rigidity at normal temperature, has good rigidity stability at high temperature within 200 ℃, has excellent fatigue resistance and creep resistance, and good flame retardance, and has small shrinkage after molding, high stability and good electrical insulation performance within the temperature range of 0-280 ℃; but PPS is very easy to flow, and the product filled with the glass fiber reinforcing agent has rough surface, poor glossiness, high cost, poor impact strength, brittle product and poor welding strength.
In addition, PPO has low shrinkage, fine and dense product surface, excellent electrical performance, stable electrical performance under high and low frequencies and different humidity, and high glossiness; however, PPO has a high viscosity, is difficult to be injection molded, and has poor solvent resistance.
In order to overcome the defects of high cost, poor impact strength, product brittleness, poor welding strength and poor solvent resistance of the modified PPS, the high-temperature resistant thermoplastic pipe material prepared by the invention is a graft of PPS and PPO.
The graft of PPO and PPS has the characteristics of high temperature resistance, corrosion resistance, radiation resistance, good toughness and high strength; and the PPO has high thermal deformation temperature and small sensitivity to water, the graft of the PPO and the PPS overcomes the defects of brittleness, low melt viscosity, difficult molding, poor solvent resistance of the PPO and high melt viscosity of the PPS, and simultaneously, the production cost is greatly reduced.
The toughening agent is any one or a combination of more than two of unsaturated polyester resin, polyamide resin, acetal resin, polycarbonate resin and polyurethane resin, and has good compatibility with the base material; the toughening agent has the characteristics that: the impact on the material fluidity is low after the toughening agent is added, the deformation resistance is improved, and the sensitivity to water is improved; the toughening agent can be reflected with the material to form a part of a curing system, so that the brittleness of the epoxy adhesive is improved, and the impact resistance is improved; and the antioxidant is antioxidant 1010.
The invention also provides a preparation method of the high-temperature-resistant thermoplastic pipe material, which comprises the following steps: step S1, drying the first base material and the second base material, uniformly mixing and putting into a kneading machine, wherein the temperature in the kneading machine is 150-220 ℃, the stirring speed is 30-60 r/min, and the stirring time is 0.5-1 h; step S2, adjusting the temperature of the kneader to 90-120 ℃, adding the toughening agent into the kneader, and stirring for 2-4 h at a stirring speed of 20-40 r/min; step S3, adding a compatilizer and a fluorine modifier into a kneading machine, adjusting the temperature of the kneading machine to be 150-220 ℃, stirring for 3-6 hours, and stirring at a rotating speed of 20-40 r/min; step S4, adding an antioxidant into the mixture for 1-3 hours under the condition of stirring based on the step S3, and cooling the mixture to 16-24 ℃; and S5, performing double-screw extrusion modification granulation on the material cooled in the S4 to prepare the high-temperature-resistant thermoplastic pipe material.
And in the step S1, drying the first base material and the second base material, respectively placing the PPS and the PPO in an oven at the temperature of 80-1 OO, drying for 1-2h, and uniformly mixing according to the proportion for use.
In the present invention, the fluorine-based modifier is PPA, which has high hardness, high strength and good chemical resistance, and is used to improve the hardness and strength of the high temperature resistant thermoplastic pipe material and reduce the production cost.
Example 1
In this embodiment, the content of each component of the material is calculated by weight percent: 85% of first base material, 5% of second base material, 2.5% of compatilizer, 2.5% of flexibilizer, 2.5% of fluorine modifier and 0.5% of antioxidant.
Step S1, uniformly mixing the first base material and the second base material, adding the mixture into a kneader, wherein the reaction temperature is 160 ℃, the stirring time is 0.5h, and the stirring speed is 30 r/min; step S2, adjusting the temperature of the kneader to 9 ℃ and adding the toughening agent into the kneader, wherein the stirring time is 2h and the stirring speed is 20 r/min; step S3, adding a compatilizer and a fluorine modifier into the kneader, adjusting the temperature in the kneader to 150 ℃, and stirring at a rotation speed of 20r/min for 3 hours; step S4, adding an antioxidant into the mixture for 1 hour based on the step S3, and cooling the mixture to 16-24 ℃; and S5, performing double-screw extrusion modification granulation on the material cooled in the S4 to prepare the high-temperature-resistant thermoplastic pipe material.
In the embodiment, the ratio of the modified PPS to the modified PPO in the first base material is 1:0.1, the toughening agent is unsaturated polyester resin, and the antioxidant is antioxidant 1010.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 41.7MPa, a Vicat softening temperature of 120 ℃, an elongation of 63% and a flexural modulus of 903MPA were measured.
Example 2
Based on example 1, the difference between the modified PPS and the modified PPO in the first base stock is 1:0.5, the toughening agent is polyamide resin, and the antioxidant is antioxidant 1010 in the present example from example 1.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 42.5MPa, a Vicat softening temperature of 124 ℃, an elongation of 66% and a flexural modulus of 916MPA were measured.
Example 3
Based on example 1, the difference between the modified PPS and the modified PPO in the first base material is 1:1, the toughening agent is acetal resin, and the antioxidant is antioxidant 1010 in the present example from example 1.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 44.2MPa, a Vicat softening temperature of 131 ℃, an elongation of 68% and a flexural modulus of 921MPA were measured.
Example 4
In the embodiment, the difference from the embodiment 1 is that the material comprises the following components in percentage by weight: 87% of first base material, 10% of second base material, 1% of compatilizer, 1% of toughening agent, 0.5% of fluorine modifier and 0.5% of antioxidant, wherein the ratio of modified PPS to modified PPO in the first base material is 1:1.5, the toughening agent is poly citrus ester, and the antioxidant is antioxidant 1010.
Step S1, uniformly mixing the first base material and the second base material, and putting the mixture into a kneader, wherein the reaction temperature is 220 ℃, the stirring speed is 60r/min, and the stirring time is 1 h; step S2, adjusting the temperature of the kneader to 120 ℃, adding the toughening agent into the kneader, and stirring for 4 hours at a stirring speed of 40 r/min; step S3, adding a compatilizer and a fluorine modifier into the kneader, adjusting the temperature of the kneader to 220 ℃, stirring for 6 hours and stirring at a rotating speed of 40 r/min; step S4, adding an antioxidant into the mixture for 3 hours under the condition of stirring based on the step S3, and cooling the mixture to 16-24 ℃; and S5, performing double-screw extrusion modification granulation on the material cooled in the S4 to prepare the high-temperature-resistant thermoplastic pipe material.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 45.3MPa, a Vicat softening temperature of 133 ℃, an elongation of 65% and a flexural modulus of 915MPA were measured.
Example 5
Based on example 4, the difference between the modified PPS and the modified PPO in the first base stock is 1:2, the toughening agent is a polyurethane resin, and the antioxidant is antioxidant 1010 in the present example from example 4.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 44.8MPa, a Vicat softening temperature of 129 ℃, an elongation of 65% and a flexural modulus of 913MPA were measured.
Example 6
Based on example 4, the difference between the modified PPS and the modified PPO in the first base material is 1:3, the toughening agent is a combination of polyamide resin and acetal resin, and the antioxidant is antioxidant 1010 in the present example from example 4.
Wherein, in the present example, the mass ratio between the polyamide resin and the acetal resin is 1:1.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 44.3MPa, a Vicat softening temperature of 126 ℃, an elongation of 64% and a flexural modulus of 911MPA were measured.
Example 7
Based on the embodiment 1, different from the embodiment 1, in the step S1, the polyetheretherketone and the crosslinked polyethylene are added, the mass ratio between the polyetheretherketone and the crosslinked polyethylene is 1: 2-4, in the embodiment, the mass ratio between the polyetheretherketone and the crosslinked polyethylene is 1:2, and the sum of the masses of the polyetheretherketone and the crosslinked polyethylene is the same as the mass of the second base material, and in the embodiment, the sum of the masses of the polyetheretherketone, the crosslinked polyethylene and the second base material is equal to the mass of the second base material in the embodiment 1.
The polyether-ether-ketone has the characteristics of high temperature resistance, self lubrication, easy processing and high mechanical strength, and has the characteristics of corrosion resistance, ageing resistance, dissolution resistance, high temperature, high frequency and high voltage, toughness and rigidity, hydrolysis resistance and abrasion resistance.
The crosslinked polyethylene has good heat resistance and insulating property, and has good hardness, rigidity, wear resistance and impact resistance due to the establishment of new chemical bonds among macromolecules, and combustion products of the crosslinked polyethylene mainly comprise water and carbon dioxide, so that the crosslinked polyethylene has little pollution to the environment.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 41.1MPa, a Vicat softening temperature of 103 ℃, an elongation of 53% and a flexural modulus of 746MPA were measured.
Example 8
Based on the above 7, unlike example 7, and in this example, the mass ratio between the polyether ether ketone and the crosslinked polyethylene added in step S1 was 1: 3.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 53.3MPa, a Vicat softening temperature of 114 ℃, an elongation of 58% and a flexural modulus of 886MPA were measured.
Example 9
Based on the above 7, unlike example 7, and in this example, the mass ratio between the polyether ether ketone and the crosslinked polyethylene added in step S1 was 1: 4.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of high temperature resistant thermoplastic pipe materials, where the tensile strength was measured as 38.6MPa, Vicat softening temperature was 102 ℃, elongation was 51% and flexural modulus was 769 MPA.
Example 10
Based on example 1, in this example, unlike example 1, polyvinylidene fluoride was added in step S1, wherein the mass ratio of polyvinylidene fluoride to the second base material was 1:1, and the sum of the masses of polyvinylidene fluoride and the second base material was the same as that of the second base material in example 1.
The polyvinylidene fluoride has good chemical corrosion resistance, high temperature resistance, oxidation resistance, wear resistance and strong weather resistance.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 43.7MPa, a Vicat softening temperature of 136 ℃, an elongation of 63% and a flexural modulus of 891MPA were measured.
Comparative example 1
Based on example 1, in step S3, an epoxy resin is added, the mass ratio of the epoxy resin to the compatilizer is 1: 2-6, and the ratio of the epoxy resin to the compatilizer in the comparative example is 1: 2.
It should be noted that the epoxy group in the epoxy resin is a highly active group, and can react with various functional groups to form chemical bonds between different polymer molecules, thereby improving the compatibility between different polymers, and improving the tensile strength and vicat softening temperature.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 43.6MPa, a Vicat softening temperature of 113 ℃, an elongation of 58% and a flexural modulus of 832 MPA were measured.
Comparative example 2
Based on comparative example 1, in this comparative example, the ratio between the epoxy resin and the compatibilizer was 1: 3.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 46.8MPa, a Vicat softening temperature of 105 ℃, an elongation of 55% and a flexural modulus of 824 MPA were measured.
Comparative example 3
Based on comparative example 1, in this comparative example, the ratio between the epoxy resin and the compatibilizer was 1: 4.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 47.5MPa, a Vicat softening temperature of 96 ℃, an elongation of 53% and a flexural modulus of 803 MPA were measured.
Comparative example 4
Based on comparative example 1, in the comparative example, the ratio of the epoxy resin to the compatilizer is 1:5, and the modified PPS and the modified PPO in the first base stock are respectively replaced by the PPS and the PPO with the same mass.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 26.8MPa, a Vicat softening temperature of 73 ℃, an elongation of 0.6% and a flexural modulus of 328 MPA were measured.
Comparative example 5
Based on comparative example 4, in this comparative example, the ratio between the epoxy resin and the compatibilizer was 1:6, and the content of the second binder was zero.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 34.1MPa, a Vicat softening temperature of 81 ℃, an elongation of 2.3% and a flexural modulus of 386 MPA were measured.
Comparative example 6
Based on example 4, the difference from example 1 is that in this example, the content of the second base material is zero.
Performance tests were carried out on thermoplastic pipe materials according to GB/T88043-2003, GB/T1633-2000, GB/T8804.1-2003, GB/T9341-2008, including tensile properties and Vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe materials, wherein a tensile strength of 31.3MPa, a Vicat softening temperature of 83 ℃, an elongation of 1.6% and a flexural modulus of 372 MPA were measured.
In summary, it can be seen from examples 1 to 6 that the high temperature resistant thermoplastic pipe materials prepared from the materials produced by the present invention have tensile strengths of 41Mpa or more, vicat softening temperatures of 120 ℃ or more, elongations of 60% or more, and flexural moduli of 900 Mpa or more, and the tensile strengths and vicat softening temperatures of 45.3Mpa and 133 ℃ or more, respectively, are the maximum values in example 4, so that the pipes produced from the materials can be used for transporting liquids or solids at 100 ℃ or more for a long time, and have oil resistance, pressure resistance, and lower installation and maintenance costs; on the basis of a comparative example 1, epoxy resin is added, the mass ratio of the epoxy resin to the compatilizer is set to be 1: 2-6, the tensile strength and the Vicat softening temperature of the high-temperature-resistant thermoplastic pipe material prepared by the comparative examples 1-4 are respectively reduced along with the reduction of the epoxy resin, and the epoxy resin plays a role in bonding in the material of the graft of the modified PPO and the PPS, promotes the compatibility and further improves the tensile strength and the heat distortion temperature;
it can be seen from comparative example 4 that, when the modified PPS and the modified PPO in the first base material are respectively replaced by the PPS and the PPO with the same mass, the tensile property, the vicat softening temperature, the elongation and the flexural modulus of the thermoplastic pipe material prepared from comparative example 4 are respectively greatly reduced by detection, and it can be seen from example 1 and comparative examples 1 to 3 that the tensile property, the vicat softening temperature, the elongation and the flexural modulus of the high-temperature resistant thermoplastic pipe material are greatly improved by adding the PS and the PPO after graft modification.
It can be seen from comparative example 5 that, when the content of the second base material is zero, that is, the content of the graft-modified SEBS is zero, the tensile property, vicat softening temperature, elongation, and flexural modulus of the thermoplastic pipe material prepared from comparative example 5 are respectively greatly reduced by detection, and it can be seen from example 1 and comparative examples 1 to 3 that the tensile property, vicat softening temperature, elongation, and flexural modulus of the thermoplastic pipe material are greatly improved by adding the second base material and the graft-modified SEBS in the production process;
it can be seen from comparative example 6 that, when the content of the second base material is zero, that is, the content of the graft-modified SEBS is zero, and the tensile strength and vicat softening temperature of the high temperature resistant thermoplastic pipe material produced from the material prepared in comparative example 6 are 31.3Mpa and 83 ℃, respectively, and the elongation and flexural modulus are 31.6% and 372 Mpa, respectively, which are much lower than those of the high temperature resistant thermoplastic pipe materials produced from the materials prepared in examples 1 to 6 and comparative examples 1 to 3, it can be seen that the tensile property, vicat softening temperature, elongation and flexural modulus of the high temperature resistant thermoplastic pipe material are greatly improved by adding the graft-modified SEBS.
As can be seen from examples 7 to 9, when the peek and the cross-linked polyethylene are added in step S1 and the mass ratio between the peek and the cross-linked polyethylene is 1:3, the tensile strength, the vicat softening temperature, the elongation, and the flexural modulus of the obtained high temperature resistant material are respectively improved, and when the mass ratio is 1:2 and 1:4, the tensile strength, the vicat softening temperature, the elongation, and the flexural modulus of the obtained high temperature resistant material are respectively reduced, and compared with examples 1 to 6, the indexes of the high temperature resistant thermoplastic material obtained in examples 7 to 9 are all reduced, so that the first base material and the second base material contribute to improving the flexural modulus, the vicat softening temperature, the elongation, and the tensile strength of the high temperature resistant thermoplastic material.
As can be seen from example 10, the flexural modulus, vicat softening temperature, elongation and tensile strength of the high temperature resistant thermoplastic material prepared by adding the polyvinylidene fluoride in step S1 are also improved, wherein the vicat softening temperature of the high temperature resistant thermoplastic material prepared by example 10 is 136 ℃ higher than that of the high temperature resistant thermoplastic materials prepared by examples 1 to 9, but the price of the polyvinylidene fluoride is higher than that of the second base material, so the second base material is a preferred component for producing the high temperature resistant thermoplastic material from the viewpoint of the production cost and various test indexes of the high temperature resistant thermoplastic material; meanwhile, in combination with comparative example 4, the first base material is the main component in the production process, and has great influence on various indexes of the high-temperature resistant thermoplastic material.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (10)

1. A high temperature resistant thermoplastic pipe material characterized by: the material comprises the following components in percentage by weight: 85-90% of first base material, 5-12.5% of second base material, 1-5% of compatilizer, 1-5% of flexibilizer, 0.05-2.5% of fluorine modifier and 0.05-0.5% of antioxidant.
2. The high temperature resistant thermoplastic tube material of claim 1, wherein: the material comprises the following components in percentage by weight: 85% of first base material, 5% of second base material, 2.5% of compatilizer, 2.5% of flexibilizer, 2.5% of fluorine modifier and 0.5% of antioxidant.
3. The high temperature resistant thermoplastic tube material of claim 1, wherein: the material comprises the following components in percentage by weight: 87% of first base material, 10% of second base material, 1% of compatilizer, 1% of flexibilizer, 0.5% of fluorine modifier and 0.5% of antioxidant.
4. The high temperature resistant thermoplastic tube material of claim 1, wherein: the first base material comprises modified PPS and modified PPO, and the mass ratio of the modified PPS to the modified PPO is 1: 0.1-3.
5. The high temperature resistant thermoplastic tube material of claim 1, wherein: the second base material is graft modified SEBS.
6. The high temperature resistant thermoplastic tube material of claim 1, wherein: the compatilizer is a graft of PPS and PPO.
7. The high temperature resistant thermoplastic tube material of claim 1, wherein: the toughening agent is any one or the combination of more than two of unsaturated polyester resin, polyamide resin, acetal resin, polysorbate and polyurethane resin.
8. The high temperature resistant thermoplastic tube material of claim 1, wherein: the antioxidant is antioxidant 1010.
9. A preparation method of a high-temperature-resistant thermoplastic pipe material is characterized by comprising the following steps: the method comprises the following steps: step S1, drying the first base material and the second base material, uniformly mixing and putting into a kneading machine, wherein the temperature in the kneading machine is 150-220 ℃, the stirring speed is 30-60 r/min, and the stirring time is 0.5-1 h; step S2, adjusting the temperature of the kneader to 90-120 ℃, adding the toughening agent into the kneader, and stirring for 2-4 h at a stirring speed of 20-40 r/min; step S3, adding a compatilizer and a fluorine modifier into a kneading machine, adjusting the temperature of the kneading machine to be 150-220 ℃, stirring for 3-6 hours, and stirring at a rotating speed of 20-40 r/min; step S4, adding an antioxidant into the mixture for 1-3 hours under the condition of stirring based on the step S3, and cooling the mixture to 16-24 ℃; and S5, performing double-screw extrusion modification granulation on the material cooled in the S4 to prepare the high-temperature-resistant thermoplastic pipe material.
10. The method of making a high temperature resistant thermoplastic tube material of claim 9, wherein: in the step S3, adding epoxy resin, wherein the mass ratio of the epoxy resin to the compatilizer is 1: 2-6.
CN202110158316.3A 2021-02-05 2021-02-05 High-temperature-resistant thermoplastic pipe material and preparation method thereof Pending CN112940505A (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102977603A (en) * 2012-08-23 2013-03-20 广东威林工程塑料有限公司 High temperature resistance high heat conduction PPS/PPO alloy and preparation method thereof
CN103013118A (en) * 2011-09-24 2013-04-03 张国庆 High toughness filling reinforcement poly phenylene sulfide (PPS)/poly-p-phenylene oxide (PPO) alloy and method for preparing same
CN103788654A (en) * 2013-12-30 2014-05-14 安徽科聚新材料有限公司 Enhanced heat-resisting and antistatic polyphenylene sulfite/poly-p-phenylene oxide (PPS/PPO) alloy material and preparation method thereof
CN108250717A (en) * 2016-12-29 2018-07-06 上海杰事杰新材料(集团)股份有限公司 Composite material of the wear-resisting polyphenylene oxide of low-dielectric loss and polyphenylene sulfide and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103013118A (en) * 2011-09-24 2013-04-03 张国庆 High toughness filling reinforcement poly phenylene sulfide (PPS)/poly-p-phenylene oxide (PPO) alloy and method for preparing same
CN102977603A (en) * 2012-08-23 2013-03-20 广东威林工程塑料有限公司 High temperature resistance high heat conduction PPS/PPO alloy and preparation method thereof
CN103788654A (en) * 2013-12-30 2014-05-14 安徽科聚新材料有限公司 Enhanced heat-resisting and antistatic polyphenylene sulfite/poly-p-phenylene oxide (PPS/PPO) alloy material and preparation method thereof
CN108250717A (en) * 2016-12-29 2018-07-06 上海杰事杰新材料(集团)股份有限公司 Composite material of the wear-resisting polyphenylene oxide of low-dielectric loss and polyphenylene sulfide and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
李建军: "《塑料配方设计》", 30 September 2019, 中国轻工业出版社 *
石安富等: "《工程塑料手册》", 31 March 2003, 上海科学技术出版社 *

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