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A kind of antiscaling polypropylene material and preparation method thereof

A technology of polypropylene material and polypropylene resin, which is applied in the field of antiscaling polypropylene materials for pipelines and its preparation, and polypropylene modified materials, which can solve problems such as pipeline blockage, equipment corrosion, and metal transportation pipeline corrosion, and achieve reduction Effect of contact, reduction of mold release stress, and reduction of contact area

Active Publication Date: 2022-04-05
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of water transportation, calcium and magnesium carbonates in the water form mineral scaling, which adheres to the surface of treatment equipment and transportation water pipes, causing corrosion of equipment and blockage of pipelines
At present, the industrial antiscaling method is chemical antiscaling. The method is to add antiscalants to the water to prevent fouling. Commonly used antiscalants are generally trisodium phosphate, sodium hexametaphosphate, etc. Antiscalants will acidify the water body, which is harmful to the water body. Corrosion caused by metal transportation pipes

Method used

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  • A kind of antiscaling polypropylene material and preparation method thereof
  • A kind of antiscaling polypropylene material and preparation method thereof
  • A kind of antiscaling polypropylene material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Preparation of NiFe 2 o 4 : NiO and Fe 2 o 3 According to the molar ratio of 1:1, it is mixed by ball mill, dried, and subjected to solid phase synthesis at 1100°C for 8 hours in an air atmosphere, and then crushed by a ball mill to obtain a powder with a particle size of 10-30 μm.

[0030] Preparation of anti-scaling polypropylene material:

[0031] 93.5 parts of polypropylene, 3 parts of NiFe 2 o 4 , 1 part of polyethylene glycol, 2 parts of zinc stearate, 0.5 part of antioxidant, melted, mixed and dispersed in a twin-screw extruder with a length-to-diameter ratio of 40:1, extruded and granulated at 230 ° C to obtain scale inhibition Polypropylene material.

Embodiment 2

[0033] Preparation of NiFe 2 o 4 :

[0034] NiO and Fe 2 o 3 According to the molar ratio of 1:1, it is mixed by ball mill, dried, and subjected to solid phase synthesis at 1050°C for 10 hours in an air atmosphere, and then crushed by a ball mill to obtain a powder with a particle size of 10-30 μm.

[0035] Preparation of anti-scaling polypropylene material:

[0036] 92.7 parts of polypropylene, 2 parts of NiFe 2 o 4 , 1.5 parts of polyethylene glycol, 3 parts of zinc stearate, and 0.8 parts of antioxidant are melt-mixed and dispersed in a twin-screw extruder with an aspect ratio of 36:1, extruded and granulated at 210°C to obtain scale inhibition Polypropylene material.

Embodiment 3

[0038] Preparation of NiFe 2 o 4 :

[0039] NiO and Fe 2 o 3 According to the molar ratio of 1:1, it is mixed by ball mill, dried, and subjected to solid phase synthesis at 1150°C for 7 hours in an air atmosphere, and then crushed by a ball mill to obtain a powder with a particle size of 10-30 μm.

[0040] Preparation of anti-scaling polypropylene material:

[0041] 93.9 parts of polypropylene, 4 parts of NiFe 2 o 4 , 0.8 parts of polyethylene glycol, 1 part of zinc stearate, and 0.3 parts of antioxidant are melt-mixed and dispersed in a twin-screw extruder with an aspect ratio of 34:1, extruded and granulated at 190°C to obtain scale inhibition Polypropylene material.

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Abstract

The invention discloses a scale-resistant polypropylene material and a preparation method thereof, belonging to the technical field of polymer materials. Anti-scaling polypropylene material is composed of 88-97.8 parts of polypropylene resin, 1-5 parts of NiFe 2 o 4 , 0.5-2 parts of polyethylene glycol, 0.5-4 parts of zinc stearate, and 0.2-1 part of antioxidant are prepared in parts by weight. The present invention uses NiFe 2 o 4 The modified polypropylene material makes the surface of the modified polypropylene have a cell structure, and the size of the unit cell matches the size of the mineral salt deposition crystal nucleus in the water, which can better promote the deposition of scale crystals and effectively reduce the deposition and adhesion of scale. The cohesiveness of the polyethylene glycol in the system of the present invention is low, and it can play a plasticizing role in the formulation to better protect NiFe 2 o 4 The structure itself; the addition of zinc stearate is mainly to reduce the adhesion between the material and the mold in the later part forming process, reduce the demoulding stress, so as to achieve the unit cell structure of the surface protection. The anti-scaling polypropylene material of the invention can be used in the field of hydrophobic pipelines, thereby expanding the application range of the polypropylene material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a modified polypropylene material, in particular to a scale-resistant polypropylene material for pipelines and a preparation method thereof. Background technique [0002] The shortage of water resources has become a major problem facing the world at present, and the establishment of pipelines to transport and transfer water funds has become an important method for solving problems in my country, such as the South-to-North Water Diversion Project. However, in the process of water transportation, calcium and magnesium carbonates in the water form mineral scales, which adhere to the surface of treatment equipment and transportation water pipes, causing corrosion of equipment and blockage of pipes. At present, the industrial antiscaling method is chemical antiscaling. The method is to add antiscalants to the water to prevent fouling. Commonly used antiscalants are generally t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L71/02C08K3/22C08K5/098
CPCC08L23/12C08K2201/003C08L71/02C08K3/22C08K5/098
Inventor 杨桂生计娉婷朱敏廖雄兵
Owner HEFEI GENIUS NEW MATERIALS
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