Chemical pipeline anticorrosive material production process

A technology of anti-corrosion materials and production technology, applied in the direction of tubular objects, applications, household appliances, etc., can solve the problems of backward products and anti-corrosion methods that do not meet the needs of the market, so as to simplify the production process, slow down the construction process of workers, save The effect of the adhesive layer

Inactive Publication Date: 2021-02-05
陈冠霖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a production process of anti-corrosion materials for chemical pipelines, which solves the problem that the anti-corrosion method of power transfer in chemical pipelines gradually fails to meet the needs of the market, and adopts the method of blending and modifying existing materials Preparation, heat-shrinkable anti-corrosion materials that can meet different performance requirements, and solve the problem of backward products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A process for producing anticorrosion materials for chemical pipelines, comprising the following steps:

[0026] S1. Formula: It includes the following raw material components in weight percentage:

[0027] 55-60% polyethylene terephthalate, 10-20% ethylene glycol modified - polyethylene terephthalate, 6-9% polybutylene terephthalate, 2-5 % thermoplastic elastomer, 3-5% plasticizer, 0.2-0.5% antioxidant, 0.1-0.5% auxiliary crosslinking agent.

[0028] S2. Blending of raw materials: put the raw materials in step S1 into a two-roll kneader, and control the temperature of the two-roll kneader at 100-120° C. for 10-15 min.

[0029] S3. Granulation: Put the mixed raw materials into the granulator to carry out the mixing and granulation of the raw materials.

[0030] S4. Radiation crosslinking: use an electron accelerator to carry out the granulation of the raw materials in step S3 under the conditions of electron beam energy of 0.5-1.0MeV, radiation dose of 8-12kGy and rad...

Embodiment 2

[0038] A process for producing anticorrosion materials for chemical pipelines, comprising the following steps:

[0039] S1. Formula: It includes the following raw material components in weight percentage:

[0040] 55-60% polyethylene terephthalate, 10-20% ethylene glycol modified - polyethylene terephthalate, 6-9% polybutylene terephthalate, 2-5 % thermoplastic elastomer, 3-5% plasticizer, 0.2-0.5% antioxidant, 0.1-0.5% auxiliary crosslinking agent.

[0041] S2. Blending of raw materials: put the raw materials in step S1 into a two-roll kneader, and control the temperature of the two-roll kneader to knead for 15-20 min under the condition of 120-150° C.

[0042] S3. Granulation: Put the mixed raw materials into the granulator to carry out the mixing and granulation of the raw materials.

[0043] S4. Radiation cross-linking: use an electron accelerator to carry out the granulation of the raw material in step S3 under the condition that the electron beam energy is 1.0-1.2 MeV,...

Embodiment 3

[0051] A process for producing anticorrosion materials for chemical pipelines, comprising the following steps:

[0052] S1. Formula: It includes the following raw material components in weight percentage:

[0053] 55-60% polyethylene terephthalate, 10-20% ethylene glycol modified - polyethylene terephthalate, 6-9% polybutylene terephthalate, 2-5 % thermoplastic elastomer, 3-5% plasticizer, 0.2-0.5% antioxidant, 0.1-0.5% auxiliary crosslinking agent.

[0054]S2. Blending of raw materials: put the raw materials in step S1 into a two-roll kneader, and control the temperature of the two-roll kneader at 150-200° C. for 20-30 min.

[0055] S3. Granulation: Put the mixed raw materials into the granulator to carry out the mixing and granulation of the raw materials.

[0056] S4. Radiation cross-linking: use an electron accelerator to carry out the granulation of the raw material in step S3 under the condition that the electron beam energy is 1.2-1.5 MeV, the radiation dose is 14-18 ...

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Abstract

The invention discloses a chemical pipeline anticorrosive material production process, which belongs to the technical field of preparation of polymer composites and comprises the following steps: mixing, granulating and processing raw materials, performing radiation crosslinking on a polymer profile by using an electron accelerator, and performing heating and radial expansion on the crosslinked polymer to obtain the anticorrosive material for the chemical pipeline. Finally, an anti-corrosion thermal shrinkage product is obtained through cooling and shaping, meanwhile, by means of the shape memory of the thermal shrinkage product, a thermal shrinkage material product with the proper shape and size is selected to be arranged outside the pipeline in a sleeving or wrapping mode, the material rapidly shrinks and becomes smaller after being heated to a certain temperature through a heat source, and the surface of the pipeline is tightly wrapped with the thermal shrinkage anti-corrosion material. The effects of insulation, moisture prevention, sealing, protection and connection are achieved, the requirements of the pipeline anticorrosion industry for anticorrosion materials are met, an adhesive layer can be omitted, the production process of the anticorrosion materials is simplified, the production cost is reduced, meanwhile, the construction process of workers is slowed down, and theconstruction efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of polymer composite material preparation, and in particular relates to a production process of anticorrosion material for chemical pipelines. Background technique [0002] As the name suggests, heat shrinkable materials are materials that can shrink and become smaller when heated to a certain temperature. During use, choose a heat-shrinkable material product with a suitable shape and size to be inserted or wrapped on the outside of the object. When heated to a certain temperature by a heat source, the material will shrink rapidly and become smaller, and its radial shrinkage rate can reach 50-80%. It covers the outside of the object, and can show the original shape of the wrapped object, just like putting on a tight suit on the object. The preparation process of heat-shrinkable materials determines the product quality, therefore, the key technology of its preparation process has always been a research hotsp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L101/00C08K5/12C08K5/521C08K5/11C08K5/39C08K5/5398B29D23/00C08J7/12
CPCB29D23/001C08J7/123C08J2367/02C08J2400/26C08J2467/02C08L67/02C08L2203/18C08L2205/025C08L2205/035C08L2312/06C08L101/00C08K5/12C08K5/521C08K5/11C08K5/39C08K5/5398
Inventor 陈冠霖
Owner 陈冠霖
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