CN107629293A - The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe - Google Patents
The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe Download PDFInfo
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- CN107629293A CN107629293A CN201710919789.4A CN201710919789A CN107629293A CN 107629293 A CN107629293 A CN 107629293A CN 201710919789 A CN201710919789 A CN 201710919789A CN 107629293 A CN107629293 A CN 107629293A
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- hdpe
- density polyethylene
- high density
- feed pipe
- corrosion resistant
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Abstract
The invention belongs to tubing preparing technical field, the preparation method of more particularly to corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：1) high density polyethylene (HDPE) is weighed to be well mixed with wollastonite, it is put into high-speed mixer, temperature control is at 70 90 DEG C, the 30min of batch mixing 20, it is further continued for adding titanium dioxide, control temperature is at 130 150 DEG C, the 45min of batch mixing 25, it is transferred to cold mixed, cold mixed temperature control obtains compound at 30 40 DEG C；2) compound is well mixed with graphene again, is delivered to extruder, plasticizing extrusion, compression molding, cooling and shaping, gets product.The feed pipe that the inventive method is prepared has very strong anticorrosive effect to corrosive mediums such as acid, alkali, oil.
Description
Technical field
The invention belongs to tubing preparing technical field, the preparation side of more particularly to corrosion resistant high density polyethylene (HDPE) feed pipe
Method.
Background technology
Compared with traditional metal tube, pipe of cement, plastic pipe has light weight, corrosion-resistant, small flow resistance, comprehensive section
Can property is good, easy transportation and installation, long service life the advantages that.The material that plastic pipe uses mainly has PVC, PE and polypropylene
Deng.Compared with other plastic tubes, high density polyethylene (HDPE) (HDPE) tubing has milk environmental stress, resistance to cracking, creep resistance good, close
The advantages that spending low, good toughness, corrosion-resistant, good insulation preformance, being easy to construct and install, be widely used in city have stable political situation building discharge
The fields such as water, combustion gas, heat supply heating, electric wire threading, agricultural water-saving irrigation.
In recent years, with the continuous development of scientific technology, people are to the performance requirement of PE feed pipes also more and more higher.At present
PE feed pipes on the market typically have a good corrosion resistance to acid, alkali, salt, but to the corrosion resistance of organic solvent but very
Difference.In water supply, if containing organic solvent in water, PE feed pipes are easier to corrode, and greatly reduce the use of PE feed pipes
Life-span, people need often more water-changing tube, cause the waste of resource, while need to produce more PE feed pipes, aggravate environment
Pollution.Therefore, a kind of preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe is researched and developed, it is particularly significant and necessary.
The content of the invention
The technical problems to be solved by the invention are to provide the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, should
The feed pipe that method is prepared has very strong anticorrosive effect to corrosive mediums such as acid, alkali, oil.
To achieve the above object, the present invention adopts the following technical scheme that：
The present invention provides the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：
1) weigh high density polyethylene (HDPE) to be well mixed with wollastonite, be put into high-speed mixer, temperature control is in 70-90
DEG C, batch mixing 20-30min, be further continued for adding titanium dioxide, control temperature at 130-150 DEG C, batch mixing 25-45min, be transferred to it is cold mixed,
Cold mixed temperature control obtains compound at 30-40 DEG C；
2) compound being well mixed with graphene again, is delivered to extruder, plasticizing is extruded, compression molding, cooling and shaping,
Get product.
Preferably, in step 1) of the present invention, the addition of wollastonite is the 12-20% of high density polyethylene (HDPE) weight.
Preferably, in step 1) of the present invention, titanium dioxide addition is the 2-6% of high density polyethylene (HDPE) weight.
Preferably, in step 2) of the present invention, graphene addition is the 0.1-0.6% of high density polyethylene (HDPE) weight.
It is highly preferred that in step 1) of the present invention, the addition of wollastonite is the 16% of high density polyethylene (HDPE) weight.
It is highly preferred that in step 1) of the present invention, titanium dioxide addition is the 4% of high density polyethylene (HDPE) weight.
It is highly preferred that in step 2) of the present invention, graphene addition is the 0.3% of high density polyethylene (HDPE) weight.
It is highly preferred that in step 1) of the present invention, the particle diameter of wollastonite is 10-20 μm.
It is highly preferred that in step 1) of the present invention, the particle diameter of titanium dioxide is 500-1000 mesh.
It is highly preferred that in step 1) of the present invention, the particle diameter of graphene is 10-30nm.
Compared with prior art, the beneficial effects of the present invention are：
Wollastonite is natural calcium silicates in the present invention, is needle-like, bar-shaped and granular mixture, wherein using needle-like as
Main, small with hygroscopicity, thermal coefficient of expansion is small, the weathering aging of heat endurance high resistance to chemicals burn into milk, mechanical performance and electrical property
The characteristics of excellent, the hardness of plastics, tensile strength, flexural strength, heat distortion temperature, anti-fire performance can be improved and reduce cost
Deng effect, with titanium dioxide and graphene synergy modification high-density polyethylene, enhancing feed pipe is to the anti-corrosion of organic solvent
Property.
Embodiment
The invention will be further described with reference to embodiments, but the invention is not limited in these embodiments.
Embodiment 1
The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：
1) weigh high density polyethylene (HDPE) and be well mixed with the wollastonite that particle diameter is 10 μm, is put into high-speed mixer, temperature
Control is further continued for adding the titanium dioxide that particle diameter is 1000 mesh, control temperature is at 130 DEG C, batch mixing at 70 DEG C, batch mixing 20min
45min, is transferred to cold mixed, and cold mixed temperature control obtains compound at 30 DEG C；
2) compound is well mixed with the graphene that particle diameter is 130nm again, is delivered to extruder, plasticizing extrusion, molding
Shaping, cooling and shaping, gets product；
Above-mentioned steps 1) in, the addition of wollastonite is the 12% of high density polyethylene (HDPE) weight.
Above-mentioned steps 1) in, titanium dioxide addition is the 6% of high density polyethylene (HDPE) weight.
Above-mentioned steps 2) in, graphene addition is the 0.1% of high density polyethylene (HDPE) weight.
Embodiment 2
The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：
1) weigh high density polyethylene (HDPE) and be well mixed with the wollastonite that particle diameter is 12 μm, is put into high-speed mixer, temperature
Control is further continued for adding the titanium dioxide that particle diameter is 900 mesh, control temperature is at 135 DEG C, batch mixing at 75 DEG C, batch mixing 30min
40min, is transferred to cold mixed, and cold mixed temperature control obtains compound at 35 DEG C；
2) compound is well mixed with the graphene that particle diameter is 25nm again, is delivered to extruder, plasticizing extrusion, is molded into
Type, cooling and shaping, get product；
Above-mentioned steps 1) in, the addition of wollastonite is the 14% of high density polyethylene (HDPE) weight.
Above-mentioned steps 1) in, titanium dioxide addition is the 5% of high density polyethylene (HDPE) weight.
Above-mentioned steps 2) in, graphene addition is the 0.5% of high density polyethylene (HDPE) weight.
Embodiment 3
The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：
1) weigh high density polyethylene (HDPE) and be well mixed with the wollastonite that particle diameter is 15 μm, is put into high-speed mixer, temperature
Control is further continued for adding the titanium dioxide that particle diameter is 800 mesh, control temperature is at 140 DEG C, batch mixing at 80 DEG C, batch mixing 25min
35min, is transferred to cold mixed, and cold mixed temperature control obtains compound at 35 DEG C；
2) compound is well mixed with the graphene that particle diameter is 20nm again, is delivered to extruder, plasticizing extrusion, is molded into
Type, cooling and shaping, get product；
Above-mentioned steps 1) in, the addition of wollastonite is the 16% of high density polyethylene (HDPE) weight.
Above-mentioned steps 1) in, titanium dioxide addition is the 4% of high density polyethylene (HDPE) weight.
Above-mentioned steps 2) in, graphene addition is the 0.3% of high density polyethylene (HDPE) weight.
Embodiment 4
The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：
1) weigh high density polyethylene (HDPE) and be well mixed with the wollastonite that particle diameter is 18 μm, is put into high-speed mixer, temperature
Control is further continued for adding the titanium dioxide that particle diameter is 600 mesh, control temperature is at 145 DEG C, batch mixing at 85 DEG C, batch mixing 25min
30min, is transferred to cold mixed, and cold mixed temperature control obtains compound at 40 DEG C；
2) compound is well mixed with the graphene that particle diameter is 15nm again, is delivered to extruder, plasticizing extrusion, is molded into
Type, cooling and shaping, get product；
Above-mentioned steps 1) in, the addition of wollastonite is the 18% of high density polyethylene (HDPE) weight.
Above-mentioned steps 1) in, titanium dioxide addition is the 3% of high density polyethylene (HDPE) weight.
Above-mentioned steps 2) in, graphene addition is the 0.4% of high density polyethylene (HDPE) weight.
Embodiment 5
The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, including following preparation process：
1) weigh high density polyethylene (HDPE) and be well mixed with the wollastonite that particle diameter is 20 μm, is put into high-speed mixer, temperature
Control is further continued for adding the titanium dioxide that particle diameter is 500 mesh, control temperature is at 150 DEG C, batch mixing at 90 DEG C, batch mixing 20min
25min, is transferred to cold mixed, and cold mixed temperature control obtains compound at 40 DEG C；
2) compound is well mixed with the graphene that particle diameter is 10nm again, is delivered to extruder, plasticizing extrusion, is molded into
Type, cooling and shaping, get product；
Above-mentioned steps 1) in, the addition of wollastonite is the 20% of high density polyethylene (HDPE) weight.
Above-mentioned steps 1) in, titanium dioxide addition is the 2% of high density polyethylene (HDPE) weight.
Above-mentioned steps 2) in, graphene addition is the 0.6% of high density polyethylene (HDPE) weight.
The corrosion resistant high density polyethylene (HDPE) feed pipe sanitation performance of the present invention, is shown in Table 1：
The corrosion resistant high density polyethylene (HDPE) feed pipe sanitation performance of the present invention of table 1
The decay resistance of the corrosion resistant high density polyethylene (HDPE) feed pipe of the present invention, is shown in Table 2.
The decay resistance of the corrosion resistant high density polyethylene (HDPE) feed pipe of the present invention of table 2
Note：☆ is excellent, is not corroded completely；During △ is, slightly corrode；× to be bad, erosion.
Claims (7)
1. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe, it is characterised in that including following preparation process：
1) weigh high density polyethylene (HDPE) to be well mixed with wollastonite, be put into high-speed mixer, temperature control is mixed at 70-90 DEG C
Expect 20-30min, be further continued for adding titanium dioxide, control temperature at 130-150 DEG C, batch mixing 25-45min, be transferred to it is cold mixed, it is cold mixed
Temperature control obtains compound at 30-40 DEG C；
2) compound is well mixed with graphene again, is delivered to extruder, plasticizing extrusion, compression molding, cooling and shaping, produces
Finished product；
In the step 1), the addition of wollastonite is the 12-20% of high density polyethylene (HDPE) weight；
In the step 1), titanium dioxide addition is the 2-6% of high density polyethylene (HDPE) weight；
In the step 2), graphene addition is the 0.1-0.6% of high density polyethylene (HDPE) weight.
2. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe according to claim 1, it is characterised in that：It is described
In step 1), the addition of wollastonite is the 16% of high density polyethylene (HDPE) weight.
3. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe according to claim 1, it is characterised in that：It is described
In step 1), titanium dioxide addition is the 4% of high density polyethylene (HDPE) weight.
4. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe according to claim 1, it is characterised in that：It is described
In step 2), graphene addition is the 0.3% of high density polyethylene (HDPE) weight.
5. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe according to claim 2, it is characterised in that：It is described
In step 1), the particle diameter of wollastonite is 10-20 μm.
6. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe according to claim 3, it is characterised in that：It is described
In step 1), the particle diameter of titanium dioxide is 500-1000 mesh.
7. the preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe according to claim 4, it is characterised in that：It is described
In step 1), the particle diameter of graphene is 10-30nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710919789.4A CN107629293A (en) | 2017-09-30 | 2017-09-30 | The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe |
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| CN201710919789.4A CN107629293A (en) | 2017-09-30 | 2017-09-30 | The preparation method of corrosion resistant high density polyethylene (HDPE) feed pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116003891A (en) * | 2022-12-14 | 2023-04-25 | 重庆伟星新型建材有限公司 | Pipe for garden flower planting heating and preparation method thereof |
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Application publication date: 20180126 |
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