阅读说明：本技术 一种耐高温、耐磨的电力保护管材及其制造方法 (High-temperature-resistant and wear-resistant electric power protection pipe and manufacturing method thereof ) 是由 郑伯通 于 2020-12-24 设计创作，主要内容包括：本发明提供一种耐高温、耐磨的电力保护管材及其制造方法,其配方中各组分的重量份数如下：高密度聚乙烯、超高分子量聚乙烯、聚辛烯橡胶、纳米稀土β晶型成核剂、过氧化二异丙苯、硅酮聚合物阻燃剂、含氟金刚烷基缩聚物、色母。具体步骤如下：步骤一：制备含氟金刚烷基缩聚物；步骤二：混合搅拌制备混合料；步骤三：旋转挤出耐高温、耐磨的电力保护管材。按照本发明方法制得的电力保护管材具有良好的化学稳定性,通过超高分子量聚乙烯和含氟金刚烷基缩聚物的加入,增强了其高温下的抗磨性能,克服了传统PE材料表面硬度低、热变形温度低、抗磨粒磨损和抗疲劳磨损性能差的缺陷,氧化诱导试验结果显示,使用至少40年仍可保持80％的机械性能。(The invention provides a high-temperature-resistant and wear-resistant electric power protection pipe and a manufacturing method thereof, wherein the formula comprises the following components in parts by weight: high-density polyethylene, ultrahigh molecular weight polyethylene, polyoctene rubber, a nano rare earth beta crystal form nucleating agent, dicumyl peroxide, a silicone polymer flame retardant, a fluorine-containing adamantyl polycondensate and color master batch. The method comprises the following specific steps: the method comprises the following steps: preparing a fluorine-containing adamantyl polycondensate; step two: mixing and stirring to prepare a mixture; step three: and rotationally extruding the high-temperature-resistant and wear-resistant electric protection pipe. The electric protection pipe prepared by the method has good chemical stability, the wear resistance at high temperature is enhanced by adding the ultra-high molecular weight polyethylene and the fluorine-containing adamantyl polycondensate, the defects of low surface hardness, low thermal deformation temperature, poor wear resistance of wear particles and poor fatigue wear resistance of the traditional PE material are overcome, and the oxidation induction test result shows that 80 percent of mechanical property can be still maintained after the electric protection pipe is used for at least 40 years.)

1. The high-temperature-resistant and wear-resistant electric protection pipe is characterized by comprising the following components in parts by weight:

30-50 parts of high-density polyethylene,

70-90 parts of ultrahigh molecular weight polyethylene,

10-15 parts of polyoctene rubber,

1.5-2.0 parts of nano rare earth beta crystal form nucleating agent,

1.0 to 1.5 portions of dicumyl peroxide,

3-5 parts of silicone polymer flame retardant,

0.3 to 0.5 part of fluorinated adamantyl polycondensate,

3-5 parts of color master batch.

2. The high temperature and abrasion resistant electrical protection tubing material of claim 1, wherein the fluorine-containing adamantyl condensation polymer is prepared by the catalytic reaction of 2, 2-bis (4-aminophenyl) hexafluoropropane and 4, 6-bis (1-adamantane) -1, 3-diepoxyphenylene.

3. The high temperature and abrasion resistant electrical protection tubing of claim 2, wherein the weight ratio of 2, 2-bis (4-aminophenyl) hexafluoropropane to 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene is 1 (1.5-2).

4. A manufacturing method of a high-temperature-resistant and wear-resistant electric power protection pipe is characterized by comprising the following specific steps:

the method comprises the following steps: dissolving 2, 2-bis (4-aminophenyl) hexafluoropropane and 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene in a high boiling point solvent, adding a basic catalyst, stirring and reacting for 10-12 hours at 75-85 ℃ in the atmosphere of nitrogen or inert gas, separating out in water, washing the separated polymer for 3-5 times with ethanol, and drying in a vacuum drying oven at 80-90 ℃ to constant weight to obtain a fluorine-containing adamantyl polycondensate;

step two: adding high-density polyethylene, ultrahigh molecular weight polyethylene, polyoctene rubber, a nano rare earth beta crystal form nucleating agent, dicumyl peroxide, a silicone polymer flame retardant, color master and the fluorine-containing adamantyl polycondensate prepared in the step one into a high-speed mixer for high-speed mixing uniformly, wherein the rotating speed of a main shaft of the high-speed mixer is 700-1000rpm, so as to obtain a mixture;

step three: and (3) placing the mixture prepared in the step two in a polymer pipe rotary extrusion device, adopting any one mode of independent rotation of a core rod relative to a neck ring, independent rotation of the neck ring relative to the core rod, simultaneous same-direction rotation of the core rod and the neck ring or simultaneous reverse rotation of the core rod and the neck ring, carrying out melt rotary extrusion at the temperature of a melt section of 210 and 260 ℃ and the temperature of the neck ring section of 170 and 220 ℃ at the speed of 1-24rpm/min, and cooling and sizing the extruded tube blank under the traction of a traction machine to obtain the high-temperature-resistant and wear-resistant electric protection tube.

5. The method for manufacturing the high-temperature-resistant and wear-resistant electric power protection pipe material according to claim 4, wherein the mass ratio of the 2, 2-bis (4-aminophenyl) hexafluoropropane, the 4, 6-bis (1-adamantane) -1, 3-diepoxypropoxybenzene, the high boiling point solvent and the basic catalyst in the first step is 1 (1.5-2) to (10-15) to (0.6-0.8).

6. The method for manufacturing the high temperature and abrasion resistant electric power protection tubing according to claim 4, wherein the high boiling point solvent in the first step is one or more selected from dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.

7. The method for manufacturing the high temperature and abrasion resistant electric power protection pipe material according to claim 4, wherein the basic catalyst in the first step is one or more selected from sodium carbonate, potassium carbonate, sodium hydroxide and potassium hydroxide.

8. The method of claim 4, wherein the inert gas in the first step is selected from helium, neon, and argon.

Technical Field

The invention relates to the technical field of pipes and manufacturing methods thereof, in particular to a high-temperature-resistant and wear-resistant electric power protection pipe and a manufacturing method thereof.

Background

The electric power protection pipe is used for protecting the cable in the pipe in various aspects such as heat insulation, support, abrasion resistance and the like, wherein the PE electric power protection pipe is common, has the characteristics of strong acid and strong base corrosion resistance, and is widely applied to cable laying engineering of various industries. However, when the material is applied to a factory building or equipment with high temperature and large vibration, the hardness of the material is further reduced due to low hardness and poor wear resistance of the material and high temperature, so that the parts in contact with other parts are seriously worn, and phenomena such as fracture, wearing and the like are easy to occur, thereby losing the protection effect on the cable in the pipe.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a high-temperature-resistant and wear-resistant electric protection pipe and a manufacturing method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-temperature-resistant and wear-resistant electric power protection pipe comprises the following components in parts by weight:

30-50 parts of high-density polyethylene (HDPE),

70-90 parts of ultra-high molecular weight polyethylene (UHMWPE),

10-15 parts of polyoctene rubber (TOR),

1.5-2.0 parts of nano rare earth beta crystal form nucleating agent,

1.0-1.5 parts of dicumyl peroxide (DCP),

3-5 parts of silicone polymer flame retardant,

0.3 to 0.5 part of fluorinated adamantyl polycondensate,

3-5 parts of color master batch.

Further, the fluorine-containing adamantyl polycondensate is obtained by catalytically reacting 2, 2-bis (4-aminophenyl) hexafluoropropane with 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene.

Further, the weight ratio of 2, 2-bis (4-aminophenyl) hexafluoropropane to 4, 6-bis (1-adamantane) -1, 3-diepoxypropane-oxybenzene was 1 (1.5-2).

A manufacturing method of a high-temperature-resistant and wear-resistant electric power protection pipe comprises the following specific steps:

the method comprises the following steps: dissolving 2, 2-bis (4-aminophenyl) hexafluoropropane and 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene in a high boiling point solvent, adding a basic catalyst, stirring and reacting for 10-12 hours at 75-85 ℃ in the atmosphere of nitrogen or inert gas, separating out in water, washing the separated polymer for 3-5 times with ethanol, and drying in a vacuum drying oven at 80-90 ℃ to constant weight to obtain a fluorine-containing adamantyl polycondensate;

step two: adding high-density polyethylene, ultrahigh molecular weight polyethylene, polyoctene rubber, a nano rare earth beta crystal form nucleating agent, dicumyl peroxide, a silicone polymer flame retardant, color master and the fluorine-containing adamantyl polycondensate prepared in the step one into a high-speed mixer for high-speed mixing uniformly, wherein the rotating speed of a main shaft of the high-speed mixer is 700-1000rpm, so as to obtain a mixture;

step three: and (3) placing the mixture prepared in the step two in a polymer pipe rotary extrusion device, adopting any one mode of independent rotation of a core rod relative to a neck ring, independent rotation of the neck ring relative to the core rod, simultaneous same-direction rotation of the core rod and the neck ring or simultaneous reverse rotation of the core rod and the neck ring, carrying out melt rotary extrusion at the temperature of a melt section of 210 and 260 ℃ and the temperature of the neck ring section of 170 and 220 ℃ at the speed of 1-24rpm/min, and cooling and sizing the extruded tube blank under the traction of a traction machine to obtain the high-temperature-resistant and wear-resistant electric protection tube.

Further, in the first step, the mass ratio of the 2, 2-bis (4-aminophenyl) hexafluoropropane to the 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene to the high boiling point solvent to the basic catalyst is 1 (1.5-2) to (10-15) to (0.6-0.8).

Further, in the first step, the high boiling point solvent is selected from one or more of dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.

Further, in the first step, the basic catalyst is one or more selected from sodium carbonate, potassium carbonate, sodium hydroxide and potassium hydroxide.

Further, in the first step, the inert gas is selected from one of helium, neon and argon.

The invention has the beneficial effects that: the electric protection pipe prepared by the method has good chemical stability, the wear resistance at high temperature is enhanced by adding the ultra-high molecular weight polyethylene and the fluorine-containing adamantyl polycondensate, the defects of low surface hardness, low thermal deformation temperature, poor wear resistance of wear particles and poor fatigue wear resistance of the traditional PE material are overcome, and the oxidation induction test result shows that the electric protection pipe can still maintain 80 percent of mechanical properties after being used at high temperature for at least 40 years.

Detailed Description

The invention is further illustrated by the following examples:

example one

A high-temperature-resistant and wear-resistant electric power protection pipe comprises the following components in parts by weight:

30 portions of high-density polyethylene,

70 portions of ultra-high molecular weight polyethylene,

10 portions of polyoctene rubber,

1.5 parts of nano rare earth beta crystal form nucleating agent,

1.0 part of dicumyl peroxide,

3 parts of silicone polymer flame retardant,

0.3 part of fluorinated adamantyl polycondensate,

And 3 parts of color master batch.

Further, the fluorine-containing adamantyl polycondensate is obtained by catalytically reacting 2, 2-bis (4-aminophenyl) hexafluoropropane with 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene.

Further, the weight ratio of 2, 2-bis (4-aminophenyl) hexafluoropropane to 4, 6-bis (1-adamantane) -1, 3-diepoxypropane-oxybenzene was 1: 1.5.

A manufacturing method of a high-temperature-resistant and wear-resistant electric power protection pipe comprises the following specific steps:

the method comprises the following steps: dissolving 2, 2-bis (4-aminophenyl) hexafluoropropane and 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene in a high boiling point solvent, adding a basic catalyst, stirring and reacting for 10 hours at 75 ℃ in a nitrogen or inert gas atmosphere, separating out in water, washing the separated polymer with water for 3 times, washing the separated polymer with ethanol for 3 times, and drying in a vacuum drying oven at 80 ℃ to constant weight to obtain a fluorine-containing adamantyl polycondensate;

step two: adding high-density polyethylene, ultrahigh molecular weight polyethylene, polyoctene rubber, a nano rare earth beta crystal form nucleating agent, dicumyl peroxide, a silicone polymer flame retardant, a color master and the fluorine-containing adamantyl polycondensate prepared in the step one into a high-speed mixer, and uniformly stirring at a high speed, wherein the rotating speed of a main shaft of the high-speed mixer is 700rpm, so as to obtain a mixture;

step three: and (3) placing the mixture prepared in the step two in a polymer pipe rotary extrusion device, adopting any one mode of independent rotation of a core rod relative to a neck ring, independent rotation of a neck ring relative to the core rod, simultaneous same-direction rotation of the core rod and the neck ring or simultaneous reverse rotation of the core rod and the neck ring, carrying out melt rotary extrusion at the temperature of a melt section of 210 ℃ and the temperature of the neck ring section of 170 ℃ at the rotating speed of 1rpm/min, and cooling and sizing the extruded pipe blank under the traction of a traction machine to obtain the high-temperature-resistant and wear-resistant electric protection pipe.

Further, in the first step, the mass ratio of the 2, 2-bis (4-aminophenyl) hexafluoropropane to the 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene to the high boiling point solvent to the basic catalyst is 1:1.5:10: 0.6.

Further, in the first step, the high boiling point solvent is selected from one or more of dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.

Further, in the first step, the basic catalyst is one or more selected from sodium carbonate, potassium carbonate, sodium hydroxide and potassium hydroxide.

Further, in the first step, the inert gas is selected from one of helium, neon and argon.

The oxidation induction test results show that 80% of the mechanical properties can be maintained after the high-temperature-resistant steel is used for 42 years.

Example two

A high-temperature-resistant and wear-resistant electric power protection pipe comprises the following components in parts by weight:

50 portions of high-density polyethylene,

90 portions of ultra-high molecular weight polyethylene,

15 parts of polyoctene rubber,

2.0 parts of nano rare earth beta crystal form nucleating agent,

1.5 parts of dicumyl peroxide,

5 parts of silicone polymer flame retardant,

0.5 part of fluorinated adamantyl polycondensate,

And 5 parts of color master batch.

Further, the fluorine-containing adamantyl polycondensate is obtained by catalytically reacting 2, 2-bis (4-aminophenyl) hexafluoropropane with 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene.

Further, the weight ratio of 2, 2-bis (4-aminophenyl) hexafluoropropane to 4, 6-bis (1-adamantane) -1, 3-diepoxypropane-oxybenzene was 1: 2.

A manufacturing method of a high-temperature-resistant and wear-resistant electric power protection pipe comprises the following specific steps:

the method comprises the following steps: dissolving 2, 2-bis (4-aminophenyl) hexafluoropropane and 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene in a high boiling point solvent, adding a basic catalyst, stirring and reacting for 12 hours at 85 ℃ in a nitrogen or inert gas atmosphere, separating out in water, washing the separated polymer with water for 5 times, washing the separated polymer with ethanol for 5 times, and drying in a vacuum drying oven at 90 ℃ to constant weight to obtain a fluorine-containing adamantyl polycondensate;

step two: adding high-density polyethylene, ultrahigh molecular weight polyethylene, polyoctene rubber, a nano rare earth beta crystal form nucleating agent, dicumyl peroxide, a silicone polymer flame retardant, a color master and the fluorine-containing adamantyl polycondensate prepared in the step one into a high-speed mixer, and uniformly stirring at a high speed, wherein the rotating speed of a main shaft of the high-speed mixer is 1000rpm to obtain a mixture;

step three: and (3) placing the mixture prepared in the step two in a polymer pipe rotary extrusion device, adopting any one mode of independent rotation of a core rod relative to a neck ring, independent rotation of a neck ring relative to the core rod, simultaneous same-direction rotation of the core rod and the neck ring or simultaneous reverse rotation of the core rod and the neck ring, carrying out melt rotary extrusion at the temperature of a melting section of 260 ℃ and the temperature of the neck ring section of 220 ℃ at the rotating speed of 24rpm/min, and cooling and sizing the extruded pipe blank under the traction of a traction machine to obtain the high-temperature-resistant and wear-resistant electric protection pipe.

Further, in the first step, the mass ratio of the 2, 2-bis (4-aminophenyl) hexafluoropropane to the 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene to the high boiling point solvent to the basic catalyst is 1:2:15: 0.8.

Further, in the first step, the high boiling point solvent is selected from one or more of dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.

Further, in the first step, the basic catalyst is one or more selected from sodium carbonate, potassium carbonate, sodium hydroxide and potassium hydroxide.

Further, in the first step, the inert gas is selected from one of helium, neon and argon.

The results of the oxidation induction test show that 80% of the mechanical properties can be maintained after the high-temperature use for 41 years.

EXAMPLE III

A high-temperature-resistant and wear-resistant electric power protection pipe comprises the following components in parts by weight:

40 portions of high-density polyethylene,

80 portions of ultra-high molecular weight polyethylene,

12 parts of polyoctene rubber,

1.7 parts of nano rare earth beta crystal form nucleating agent,

1.2 parts of dicumyl peroxide,

4 parts of silicone polymer flame retardant,

0.4 part of fluorinated adamantyl polycondensate,

And 4 parts of color master batch.

Further, the fluorine-containing adamantyl polycondensate is obtained by catalytically reacting 2, 2-bis (4-aminophenyl) hexafluoropropane with 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene.

Further, the weight ratio of 2, 2-bis (4-aminophenyl) hexafluoropropane to 4, 6-bis (1-adamantane) -1, 3-diepoxypropane-oxybenzene was 1: 1.8.

A manufacturing method of a high-temperature-resistant and wear-resistant electric power protection pipe comprises the following specific steps:

the method comprises the following steps: dissolving 2, 2-bis (4-aminophenyl) hexafluoropropane and 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene in a high boiling point solvent, adding a basic catalyst, stirring and reacting for 11 hours at 80 ℃ in a nitrogen or inert gas atmosphere, separating out in water, washing the separated polymer 4 times with ethanol, and drying in a vacuum drying oven at 85 ℃ to constant weight to obtain a fluorine-containing adamantyl polycondensate;

step two: adding high-density polyethylene, ultrahigh molecular weight polyethylene, polyoctene rubber, a nano rare earth beta crystal form nucleating agent, dicumyl peroxide, a silicone polymer flame retardant, a color master and the fluorine-containing adamantyl polycondensate prepared in the step one into a high-speed mixer, and uniformly stirring at a high speed, wherein the rotating speed of a main shaft of the high-speed mixer is 900rpm, so as to obtain a mixture;

step three: and (3) placing the mixture prepared in the step (II) in a polymer pipe rotary extrusion device, adopting any one mode of independent rotation of a core rod relative to a neck ring mold, independent rotation of a neck ring mold relative to the core rod, simultaneous same-direction rotation of the core rod and the neck ring mold or simultaneous reverse rotation of the core rod and the neck ring mold, carrying out melt rotary extrusion at the temperature of a melting section of 220 ℃ and the temperature of the neck ring section of 190 ℃ at the rotating speed of 3rpm/min, and cooling and sizing the extruded pipe blank under the traction of a traction machine to obtain the high-temperature-resistant and wear-resistant electric protection.

Further, in the first step, the mass ratio of the 2, 2-bis (4-aminophenyl) hexafluoropropane to the 4, 6-bis (1-adamantane) -1, 3-diepoxypropane oxybenzene to the high boiling point solvent to the basic catalyst is 1:1.8:11: 0.7.

Further, in the first step, the high boiling point solvent is selected from one or more of dimethyl sulfoxide, N-dimethylformamide and N-methylpyrrolidone.

Further, in the first step, the basic catalyst is one or more selected from sodium carbonate, potassium carbonate, sodium hydroxide and potassium hydroxide.

Further, in the first step, the inert gas is selected from one of helium, neon and argon.

The oxidation induction test results show that 80% of the mechanical properties can be maintained after the high-temperature-resistant steel is used for 42 years.

The present invention has been described in connection with the specific embodiments, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various modifications are made by using the method concept and technical solution of the present invention, or the present invention is directly applied to other occasions without modification.