CN115058074B - Special material for steel pipe lining for hot water pipe and preparation method thereof - Google Patents
Special material for steel pipe lining for hot water pipe and preparation method thereof Download PDFInfo
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
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Abstract
The application relates to the technical field of special materials for steel pipe linings, and particularly discloses a special material for a steel pipe lining for a hot water pipe and a preparation method of the special material. The special material for the steel pipe lining for the hot water pipe comprises the following raw materials in parts by weight: 50-70 parts of HDPE, 5-15 parts of PP, 10-20 parts of SEBS composite material, 0.05-0.15 part of antioxidant 1010, 0.01-0.04 part of antioxidant 168, 0.018-0.058 part of calcium stearate, 0.05-0.09 part of PE wax, 0.05-0.15 part of silicone oil and 0.05-0.25 part of nucleating agent; the preparation method comprises the following steps: and uniformly mixing the raw materials, carrying out melt extrusion, cooling, granulating and drying to obtain the special material for the steel pipe lining for the hot water pipe. The special material for the steel pipe lining for the hot water pipe has the advantage of improving the wear resistance through the synergistic effect of the raw materials.
Description
Technical Field
The application relates to the technical field of special materials for steel pipe linings, in particular to a special material for a steel pipe lining for a hot water pipe and a preparation method thereof.
Background
The steel pipe lining is made of steel or hard structure as pipeline skeleton, and the lining is made of anticorrosive and high-temperature-resistant resin as lining layer, so that the impact force of pipeline conveying medium to external structure is reduced by means of its physical and chemical properties.
At present, the steel pipe lining in the market mainly comprises ultra-high molecular weight polyethylene, and the polyethylene has good tensile strength, but because the hot water pipe is used for conveying water for a long time, impurities possibly exist in the water, the steel pipe lining can be damaged, and the service life of the hot water pipe is influenced.
Disclosure of Invention
The application provides a special material for a steel pipe lining for a hot water pipe and a preparation method thereof in order to improve the wear resistance of the steel pipe lining.
In a first aspect, the application provides a special material for a steel pipe lining for a hot water pipe, which adopts the following technical scheme:
a special material for a steel pipe lining for a hot water pipe comprises the following raw materials in parts by weight: 50-70 parts of HDPE, 5-15 parts of PP, 10-20 parts of SEBS composite material, 0.05-0.15 part of antioxidant 1010, 0.01-0.04 part of antioxidant 168, 0.018-0.058 part of calcium stearate, 0.05-0.09 part of PE wax, 0.05-0.15 part of silicone oil and 0.05-0.25 part of nucleating agent; the SEBS composite material is prepared by modifying SEBS by adopting nano silicon dioxide and multi-wall carbon nanotubes.
By adopting the technical scheme, the special material for the steel pipe lining for the hot water pipe not only improves the tensile yield strength, the elongation at break and the melt mass flow rate, but also improves the wear resistance through the synergistic effect among the raw materials, wherein the tensile yield strength is 16-38MPa, the elongation at break is 810-1200%, the melt mass flow rate is 0.22-0.52g/10min, and the mortar wear rate is 0.08-0.36%.
HDPE is the basic component of the lining of the steel pipe, has good tensile strength and hardness, and has good chemical stability. PP has good mechanical properties, abrasion resistance, chemical resistance, heat resistance. The SEBS composite material is prepared by modifying SEBS by adopting nano silicon dioxide and multi-wall carbon nano tubes, and firstly, the SEBS has good weather resistance, heat resistance, compression set resistance and excellent mechanical properties; the nano silicon dioxide can improve the strength and chemical resistance of SEBS; the surface of the multiwall carbon nanotube is loose and porous, has adsorptivity, can load nano silicon dioxide, and improves the dispersibility of the nano silicon dioxide; the multi-wall carbon nano tube also has better wear resistance, and the mechanical strength and wear resistance of the SEBS can be improved by modifying the SEBS through the nano silicon dioxide and the multi-wall carbon nano tube.
The antioxidant 1010 is a main antioxidant, the antioxidant 168 is an auxiliary antioxidant, and the oxidation resistance of the special material for the steel pipe lining can be improved through the synergistic effect between the main antioxidant and the auxiliary antioxidant. The calcium stearate can be used as a waterproofing agent and a plastic additive, and can improve the waterproofing property of the special material for the steel pipe lining. PE wax can be used as a lubricant, and is convenient for forming and demolding of the lining of the steel pipe. The silicone oil is used as a release agent to be applied to the raw materials of special materials for the inner lining of the steel pipe, so that the release is convenient. The nucleating agent can accelerate the crystallization rate and increase the crystallization density, thereby achieving the characteristics of shortening the molding cycle and improving the mechanical property.
As preferable: the material comprises the following raw materials in parts by weight: 58-62 parts of HDPE, 7-11 parts of PP, 12-18 parts of SEBS composite material, 0.07-0.13 part of antioxidant, 168.015-0.025 part of antioxidant, 0.0275-0.0475 part of calcium stearate, 0.065-0.085 part of PE wax, 0.08-0.12 part of silicone oil and 0.1-0.2 part of nucleating agent.
Through adopting above-mentioned technical scheme, through optimizing the addition to above-mentioned raw materials, more can make each raw materials play a role, more can improve the wearability of steel pipe inside lining special material.
As preferable: the SEBS composite material is prepared by the following method:
s1: putting nano silicon dioxide into water, performing ultrasonic dispersion, adding multi-wall carbon nanotubes, uniformly mixing, filtering, and drying to obtain a product;
s2: and (3) mixing the product in the step (S1) with SEBS, melting, extruding and granulating to obtain the SEBS composite material.
Further, the SEBS composite material is prepared by the following method:
s1: putting nano silicon dioxide into water, performing ultrasonic dispersion for 20-30min, adding multi-wall carbon nanotubes, stirring for 10-20min, filtering, and drying to obtain a product;
s2: mixing the product obtained in the step S1 with SEBS, stirring for 20-30min, melting at 150-170 ℃, extruding, and granulating to obtain SEBS composite material;
wherein, the addition amount of water in each 1g of nano silicon dioxide is 6-8mL; the weight ratio of the nano silicon dioxide to the multi-wall carbon nano tube in the step S1 is 1: (1.2-1.4).
According to the technical scheme, the SEBS composite material is prepared by using the preparation method, firstly, nano silicon dioxide is loaded on the multi-wall carbon nano tube, so that the dispersibility of the nano silicon dioxide is improved, then, a product and the SEBS are mixed, melted, extruded and granulated, the SEBS composite material is obtained, the raw materials are uniformly mixed, and the raw materials play a better role, so that the wear resistance of the steel tube lining is further improved.
As preferable: the weight ratio of the product in the step S2 to the SEBS is (0.6-0.9): 1.
by adopting the technical scheme, the weight ratio of the product to the SEBS is limited, so that the wear resistance of the SEBS composite material is improved, and the wear resistance of the special material for the steel pipe lining is improved.
As preferable: the nano silicon dioxide is pretreated by the following method before use: and (3) putting the nano silicon dioxide into an ethanol solution, uniformly mixing, adding a silane coupling agent, performing ultrasonic dispersion, filtering, washing solid matters, and drying to obtain the pretreated nano silicon dioxide.
Further, the nano-silica is pretreated before use by the following method: putting nano silicon dioxide into ethanol solution, stirring for 20-30min, adding silane coupling agent, performing ultrasonic dispersion for 30-40min, filtering, washing solid with water, and drying to obtain pretreated nano silicon dioxide;
wherein the addition amount of the ethanol solution in each 1g of nano silicon dioxide is 6-8mL, the mass fraction of the ethanol solution is 20%, and the weight ratio of the nano silicon dioxide to the silane coupling agent is 1: (0.4-0.6).
By adopting the technical scheme, the specific surface energy of the nano silicon dioxide is large, self agglomeration is easy to generate, the silane coupling agent is utilized to pretreat the nano silicon dioxide, the specific surface energy of the nano silicon dioxide is reduced, the dispersibility of the nano silicon dioxide is improved, so that the nano silicon dioxide can better play a role, and the wear resistance of the special material for the steel pipe lining is further improved.
As preferable: the multiwall carbon nanotubes are pretreated prior to use by the following method: and (3) putting the multiwall carbon nanotubes into a nitric acid solution for mixing, standing, taking out the multiwall carbon nanotubes, washing and drying to obtain the pretreated multiwall carbon nanotubes.
Further, the multiwall carbon nanotubes are pretreated prior to use by the following method: putting the multiwall carbon nanotube into a nitric acid solution, stirring for 10-20min, standing for 1-2h, taking out the multiwall carbon nanotube, washing with a sodium hydroxide solution, and drying to obtain a pretreated multiwall carbon nanotube;
wherein the adding amount of the nitric acid solution in each 1g of the multiwall carbon nanotube is 6-8mL, the mass fraction of the nitric acid solution is 10%, and the mass fraction of the sodium hydroxide solution is 10%.
Through adopting above-mentioned technical scheme, utilize nitric acid solution to carry out preliminary treatment to the multiwall carbon nanotube, not only can get rid of the impurity on multiwall carbon nanotube surface, can also increase the surface area of multiwall carbon nanotube, the reinforcing adsorptivity makes its better load nano silicon dioxide to further improve the wearability of steel pipe inside lining special material.
As preferable: the special material for the steel pipe lining also comprises 5-12 parts by weight of glass fiber.
By adopting the technical scheme, the glass fiber has excellent mechanical properties, and the glass can form firm mechanical combination between the HDPE and the PP macromolecules, so that the wear resistance of the special material for the steel pipe lining can be improved.
In a second aspect, the application provides a preparation method of a special material for a steel pipe lining for a hot water pipe, which adopts the following technical scheme:
a preparation method of a special material for a steel pipe lining for a hot water pipe comprises the following steps:
and uniformly mixing the HDPE, PP, SEBS composite material, the antioxidant 1010, the antioxidant 168, the calcium stearate, the PE wax, the silicone oil and the nucleating agent, carrying out melt extrusion, cooling, granulating and drying to obtain the special material for the steel pipe lining for the hot water pipe.
Further, the preparation method of the special material for the steel pipe lining for the hot water pipe comprises the following steps:
mixing HDPE, PP, SEBS composite material, antioxidant 1010, antioxidant 168, calcium stearate, PE wax, silicone oil and nucleating agent, stirring for 5-15min, melting at 150-250deg.C, extruding, cooling, granulating, and drying to obtain the final product.
By adopting the technical scheme, various raw materials are mixed, and the special material for the steel pipe lining is prepared by the preparation method, so that the raw materials are more uniformly mixed, and the raw materials can play a better role.
As preferable: the glass fibers are added simultaneously with the addition of the nucleating agent.
By adopting the technical scheme, the wear resistance of the special material for the steel pipe lining can be further improved by adding the glass fiber.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the application adopts the SEBS composite material, is prepared by modifying the SEBS by adopting the nano silicon dioxide and the multi-wall carbon nano tube, and can further improve the wear resistance of the special material for the steel tube lining by utilizing the synergistic effect between the nano silicon dioxide and the multi-wall carbon nano tube, so that the tensile yield strength can reach 38MPa, the elongation at break can reach 1200%, the melt mass flow rate can reach 0.22g/10min, and the mortar wear rate can reach 0.08%.
2. In the application, the multiwall carbon nanotube is preferably pretreated before use, so that the adsorptivity of the multiwall carbon nanotube is improved, and the surface impurities are reduced; the nano silicon dioxide is pretreated before use, so that the dispersibility of the nano silicon dioxide is improved, and the wear resistance of the special material for the steel pipe lining is improved conveniently.
Detailed Description
The present application will be described in further detail with reference to the following specific details.
Raw materials
HDPE has a relative density of 0.945 to 0.966g/cm 3 A molecular weight of 300000; the PP molecular weight is 100000; the density is 0.90-0.92g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The nucleating agent is calcium carbonate.
Preparation example
Preparation example 1
An SEBS composite material is prepared by the following method:
s1: putting 4kg of nano silicon dioxide into water, performing ultrasonic dispersion for 25min, adding 5.2kg of multi-wall carbon nano tubes, stirring for 15min, filtering, and drying to obtain a product;
s2: mixing 1.2kg of the product obtained in the step S1 with 2kg of SEBS, stirring for 25min, melting at 160 ℃, extruding, and granulating to obtain the SEBS composite material;
wherein, the addition amount of water in each 1g of nano silicon dioxide is 7mL.
Preparation example 2
A SEBS composite material was different from that of preparation example 1 in the addition amount of the product, and the addition amount of the product in preparation example 2 was 1.5kg, and the rest was the same as that of preparation example 1.
Preparation example 3
A SEBS composite material was different from that of preparation example 1 in the addition amount of the product, and the addition amount of the product in preparation example 3 was 1.8kg, and the rest was the same as that of preparation example 1.
Preparation example 4
The SEBS composite material is different from the preparation example 2 in that the nano silicon dioxide is pretreated before being used by adopting the following method, and the rest is the same as the preparation example 2:
putting nano silicon dioxide into an ethanol solution with the mass fraction of 20%, stirring for 25min, adding a silane coupling agent, performing ultrasonic dispersion for 35min, filtering, washing solid with water, and drying to obtain pretreated nano silicon dioxide; wherein, the addition amount of the ethanol solution in each 1g of nano silicon dioxide is 7mL, and the weight ratio of the nano silicon dioxide to the silane coupling agent is 1:0.5.
preparation example 5
The SEBS composite material is different from the preparation example 4 in that the multiwall carbon nanotubes are pretreated before use by the following method, and the rest is the same as the preparation example 4:
putting the multi-wall carbon nano tube into a nitric acid solution with the mass fraction of 10%, stirring for 15min, standing for 1.5h, taking out the multi-wall carbon nano tube, washing with a sodium hydroxide solution with the mass fraction of 10%, and drying to obtain the pretreated multi-wall carbon nano tube; wherein the addition amount of the nitric acid solution per 1g of the multiwall carbon nanotubes was 7mL.
Examples
Example 1
The material for lining steel pipe for hot water pipe has the material proportion shown in table 1.
A preparation method of a special material for a steel pipe lining for a hot water pipe comprises the following steps:
mixing HDPE, PP, the SEBS composite material prepared in preparation example 1, antioxidant 1010, antioxidant 168, calcium stearate, PE wax, silicone oil and nucleating agent, stirring for 10min, melting at 200 ℃, extruding, cooling and drying to obtain the special material for the steel pipe lining for the hot water pipe.
Examples 2 to 5
The steel pipe lining special material for hot water pipe is different from example 1 in the raw material proportion, and the raw material proportion is shown in table 1.
TABLE 1 examples 1-5 amounts of raw materials (unit: kg) for lining of Steel pipe
Examples 6 to 9
The steel pipe lining special material for hot water pipe is different from example 4 in that the raw material ratio of the steel pipe lining special material is different, and the raw material ratio is shown in table 2.
TABLE 2 amounts of raw materials (unit: kg) for lining of Steel pipe of examples 6-9
| Raw materials | Example 6 | Example 7 | Example 8 | Example 9 |
| HDPE | 58 | 66 | 62 | 70 |
| PP | 7 | 9 | 11 | 15 |
| SEBS composite material | 18 | 18 | 18 | 18 |
| Antioxidant 1010 | 0.07 | 0.1 | 0.13 | 0.15 |
| Antioxidant 168 | 0.015 | 0.02 | 0.025 | 0.04 |
| Calcium stearate | 0.0275 | 0.0375 | 0.0475 | 0.058 |
| PE wax | 0.065 | 0.075 | 0.085 | 0.09 |
| Silicone oil | 0.08 | 0.1 | 0.12 | 0.15 |
| Nucleating agent | 0.1 | 0.15 | 0.2 | 0.25 |
Example 10
A special material for a steel pipe lining for a hot water pipe is different from example 7 in that the source of SEBS composite material in the raw material of the special material for the steel pipe lining is different, and the special material is prepared by adopting a preparation example 2.
Example 11
A special material for a steel pipe lining for a hot water pipe is different from example 7 in that the source of SEBS composite material in the raw material of the special material for the steel pipe lining is different, and the special material is prepared by adopting a preparation example 3.
Example 12
A special material for a steel pipe lining for a hot water pipe is different from example 7 in that the source of SEBS composite material in the raw material of the special material for the steel pipe lining is different, and the special material is prepared by adopting a preparation example 4.
Example 13
A special material for a steel pipe lining for a hot water pipe is different from example 7 in that the source of SEBS composite material in the raw material of the special material for the steel pipe lining is different, and the special material is prepared by adopting a preparation example 5.
Examples 14 to 16
The special material for the steel pipe lining for the hot water pipe is different from the special material for the steel pipe lining in example 13 in that glass fibers are also included in raw materials of the special material for the steel pipe lining, the proportion of the raw materials is shown in table 3, and the preparation method is different, namely, the glass fibers are added simultaneously when the nucleating agent is added.
TABLE 3 amounts of raw materials (unit: kg) for lining of Steel pipes of examples 14 to 16
| Raw materials | Example 14 | Example 15 | Example 16 |
| HDPE | 66 | 66 | 66 |
| PP | 9 | 9 | 9 |
| SEBS composite material | 18 | 18 | 18 |
| Antioxidant 1010 | 0.1 | 0.1 | 0.1 |
| Antioxidant 168 | 0.02 | 0.02 | 0.02 |
| Calcium stearate | 0.0375 | 0.0375 | 0.0375 |
| PE wax | 0.075 | 0.075 | 0.075 |
| Silicone oil | 0.1 | 0.1 | 0.1 |
| Nucleating agent | 0.15 | 0.15 | 0.15 |
| Glass fiber | 5 | 8 | 12 |
Comparative example
Comparative example 1
A steel pipe lining special material for a hot water pipe is different from example 1 in that SEBS composite material is not added in the steel pipe lining special material.
Comparative example 2
A steel pipe lining special material for a hot water pipe, which is different from example 1 in that the SEBS composite material in the steel pipe lining special material is replaced by SEBS in equal amount.
Comparative example 3
The special material for the steel pipe lining for the hot water pipe is different from the special material for the steel pipe lining in example 1 in that the SEBS composite material in the special material for the steel pipe lining is prepared by adopting the following method: mixing 4kg of nano silicon dioxide and 2kg of SEBS, stirring for 25min, melting at 160 ℃, extruding, and granulating to obtain the SEBS composite material.
Comparative example 4
The special material for the steel pipe lining for the hot water pipe is different from the special material for the steel pipe lining in example 1 in that the SEBS composite material in the special material for the steel pipe lining is prepared by adopting the following method: mixing 5.2kg of multi-wall carbon nanotubes and 2kg of SEBS, stirring for 25min, melting at 160 ℃, extruding, and granulating to obtain the SEBS composite material.
Performance test
The following performance tests were conducted on the steel pipe lining special materials for hot water pipes in examples 1 to 16 and comparative examples 1 to 4:
tensile yield strength: the tensile yield strength of the steel pipe lining special material was measured according to Q31/015000199C 002-2015 for steel pipe lining special material for hot water pipe, and the measurement results are shown in Table 4.
Elongation at break: the elongation at break of the steel pipe lining special material was measured according to Q31/015000199C 002-2015 for steel pipe lining special material for hot water pipe, and the measurement results are shown in Table 4.
Melt mass flow rate: the melt mass flow rate of the steel pipe lining special material was measured according to Q31/015000199C 002-2015 for steel pipe lining special material for hot water pipe, and the measurement results are shown in Table 4.
Mortar wear rate: the special material for the inner lining of the steel pipe was tested for the abrasion rate of mortar according to QB/T2668-2004 ultra-high molecular weight polyethylene pipe, and the test results are shown in Table 4.
TABLE 4 detection results
As can be seen from Table 4, the special material for the steel pipe lining for the hot water pipe not only improves the tensile yield strength, the elongation at break and the melt mass flow rate, but also improves the wear resistance through the synergistic effect among the raw materials, wherein the tensile yield strength is 16-38MPa, the elongation at break is 810-1200%, the melt mass flow rate is 0.22-0.52g/10min, and the mortar wear rate is 0.08-0.36%.
As can be seen by combining the example 1 and the comparative examples 1-2, the tensile yield strength in the example 1 is 16MPa, the elongation at break is 810%, the melt mass flow rate is 0.52g/10min, the mortar wear rate is 0.36%, and the steel pipe lining special material is better than the comparative examples 1-2, so that the SEBS composite material is more suitable, the steel pipe lining special material has excellent tensile yield strength and elongation at break, the mortar wear rate can be reduced, and the wear resistance is improved.
As can be seen by combining the embodiment 1 with the comparative examples 3-4, the tensile yield strength in the embodiment 1 is 16MPa, the elongation at break is 810%, the melt mass flow rate is 0.52g/10min, and the mortar abrasion rate is 0.36%, which is better than the comparative examples 3-4, and the SEBS composite material is more suitable for modifying the SEBS by adopting nano silicon dioxide and multi-wall carbon nano tubes, so that the special material for the steel tube lining has excellent tensile yield strength and elongation at break, the mortar abrasion rate can be reduced, and the abrasion resistance is improved.
As can be seen by combining examples 1-5, the tensile yield strength in example 4 is 21MPa, the elongation at break is 900%, the melt mass flow rate is 0.41g/10min, the mortar wear rate is 0.26%, and the addition amount of the SEBS composite material in example 4 is more suitable than other examples, so that the special material for the steel pipe lining has excellent tensile yield strength and elongation at break, the mortar wear rate can be reduced, and the wear resistance is improved.
It can be seen from examples 6 to 9 that the variation of the addition amount of other raw materials except the SEBS composite material in the special material for the steel pipe lining has little influence on the performance.
As can be seen by combining the embodiment 7 and the embodiments 10 to 13, the tensile yield strength in the embodiment 13 is 33MPa, the elongation at break is 1065%, the melt mass flow rate is 0.29g/10min, and the mortar wear rate is 0.13% better than other embodiments, which shows that the SEBS composite material prepared by adopting the preparation example 5 is more suitable, so that the special material for the steel pipe lining has excellent tensile yield strength and elongation at break, the mortar wear rate can be reduced, and the wear resistance is improved.
As can be seen from the combination of examples 13 to 16, the tensile yield strength in example 16 is 38MPa, the elongation at break is 1200%, the melt mass flow rate is 0.22g/10min, the mortar wear rate is 0.06%, and the method is superior to other examples, and shows that the addition of glass fiber into the steel pipe lining raw material is more suitable, the mechanical property of the steel pipe lining special material can be further improved, and the wear resistance is further improved.
The foregoing embodiments are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (4)
1. A special material for a steel pipe lining for a hot water pipe is characterized in that: the material comprises the following raw materials in parts by weight: 50-70 parts of HDPE, 5-15 parts of PP, 10-20 parts of SEBS composite material, 0.05-0.15 part of antioxidant 1010, 0.01-0.04 part of antioxidant 168, 0.018-0.058 part of calcium stearate, 0.05-0.09 part of PE wax, 0.05-0.15 part of silicone oil and 0.05-0.25 part of nucleating agent; the SEBS composite material is prepared by modifying SEBS by adopting nano silicon dioxide and multi-wall carbon nanotubes;
the SEBS composite material is prepared by the following method:
s1: putting nano silicon dioxide into water, performing ultrasonic dispersion, adding multi-wall carbon nanotubes, uniformly mixing, filtering, and drying to obtain a product;
s2: mixing the product obtained in the step S1 with SEBS, melting, extruding and granulating to obtain the SEBS composite material;
the weight ratio of the product in the step S2 to the SEBS is (0.6-0.9): 1, a step of;
the nano silicon dioxide is pretreated by the following method before use: putting nano silicon dioxide into ethanol solution, uniformly mixing, adding silane coupling agent, performing ultrasonic dispersion, filtering, washing solid matters, and drying to obtain pretreated nano silicon dioxide;
the multiwall carbon nanotubes are pretreated prior to use by the following method: putting the multiwall carbon nanotube into a nitric acid solution for mixing, standing, taking out the multiwall carbon nanotube, washing and drying to obtain the pretreated multiwall carbon nanotube;
the special material for the steel pipe lining also comprises 5-12 parts by weight of glass fiber.
2. The special material for the steel pipe lining for the hot water pipe according to claim 1, wherein the special material comprises the following components in parts by weight: the material comprises the following raw materials in parts by weight: 58-62 parts of HDPE, 7-11 parts of PP, 12-18 parts of SEBS composite material, 0.07-0.13 part of antioxidant, 168.015-0.025 part of antioxidant, 0.0275-0.0475 part of calcium stearate, 0.065-0.085 part of PE wax, 0.08-0.12 part of silicone oil and 0.1-0.2 part of nucleating agent.
3. A method for preparing a special material for a steel pipe lining for a hot water pipe according to any one of claims 1 to 2, comprising the steps of:
and uniformly mixing the HDPE, PP, SEBS composite material, the antioxidant 1010, the antioxidant 168, the calcium stearate, the PE wax, the silicone oil and the nucleating agent, carrying out melt extrusion, cooling, granulating and drying to obtain the special material for the steel pipe lining for the hot water pipe.
4. The method for preparing the special material for the steel pipe lining for the hot water pipe, which is characterized in that: the glass fibers are added simultaneously with the addition of the nucleating agent.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132221A (en) * | 1995-03-28 | 1996-10-02 | 四川联合大学 | Wearability high density polyethylene-elastomer compsn. and its prepn. method |
| CN101293981A (en) * | 2008-04-30 | 2008-10-29 | 上海思奇高聚物材料有限公司 | Inner lining tube material of plastic lined metal pipe and preparing method thereof |
| CN104962027A (en) * | 2015-07-27 | 2015-10-07 | 福建晟扬管道科技有限公司 | Elastomer alloy material and preparation method thereof |
| CN105175859A (en) * | 2015-09-07 | 2015-12-23 | 河北恒安泰油管有限公司 | Inner lining material for flexible pipe and flexible pipe |
| CN109535865A (en) * | 2018-11-13 | 2019-03-29 | 云浮华云创新设计有限公司 | A kind of nano combined stone protectant and preparation method thereof |
| CN110616032A (en) * | 2019-10-28 | 2019-12-27 | 姚国江 | Organic-inorganic silicon modified polyurethane super-hydrophobic coating and preparation method thereof |
| CN113429672A (en) * | 2021-06-29 | 2021-09-24 | 上海工程技术大学 | Modified polypropylene material and preparation method thereof |
-
2022
- 2022-07-23 CN CN202210871190.9A patent/CN115058074B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1132221A (en) * | 1995-03-28 | 1996-10-02 | 四川联合大学 | Wearability high density polyethylene-elastomer compsn. and its prepn. method |
| CN101293981A (en) * | 2008-04-30 | 2008-10-29 | 上海思奇高聚物材料有限公司 | Inner lining tube material of plastic lined metal pipe and preparing method thereof |
| CN104962027A (en) * | 2015-07-27 | 2015-10-07 | 福建晟扬管道科技有限公司 | Elastomer alloy material and preparation method thereof |
| CN105175859A (en) * | 2015-09-07 | 2015-12-23 | 河北恒安泰油管有限公司 | Inner lining material for flexible pipe and flexible pipe |
| CN109535865A (en) * | 2018-11-13 | 2019-03-29 | 云浮华云创新设计有限公司 | A kind of nano combined stone protectant and preparation method thereof |
| CN110616032A (en) * | 2019-10-28 | 2019-12-27 | 姚国江 | Organic-inorganic silicon modified polyurethane super-hydrophobic coating and preparation method thereof |
| CN113429672A (en) * | 2021-06-29 | 2021-09-24 | 上海工程技术大学 | Modified polypropylene material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 李玉宝 等.《纳米材料技术研发与应用》.电子科技大学出版社,2012,(第1版),81. * |
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