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Preparation method of corrosion-resisting underground communication tubing

A communication pipe and corrosion-resistant technology is applied in the field of preparation of corrosion-resistant buried communication pipes, which can solve the problems of unbalanced stiffness and elastic modulus performance indicators, easy to produce brittleness, affecting service life and other problems, and achieve the effect of improving anti-aging performance.

Inactive Publication Date: 2015-11-18
安徽电信器材贸易工业有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Compared with PE pipes, PVC pipes have better tensile and compressive strength, excellent corrosion resistance and lower price. They are suitable as communication pipes, but they are prone to brittleness during use, which affects their service life.
In order to ensure the permanence of the toughness of PVC pipes, PVC pipes need to be modified. If only a certain type of elastomer or a certain type of rigid body is used for toughening, it will cause an imbalance in the performance indicators of toughness, stiffness, and elastic modulus. Therefore, it is manufactured It is the main technical problem at present to maintain high strength while resisting impact and cracking, and to have good corrosion resistance.

Method used

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Embodiment Construction

[0011] A method for preparing corrosion-resistant buried communication pipes, comprising the following production steps:

[0012] 1) Preparation of raw materials, a preparation method of corrosion-resistant buried communication pipes, which consists of the following raw materials in parts by weight: 51 amber resin, 8 vinyl acetate, 2.2 modified chabazite, 5.5 calcium zinc stabilizer, calcium antimonate 3. Polyethylene wax 2, preservative 4, nano-scale silicon dioxide 9.5, lead-containing zinc oxide 1.9;

[0013] 2) The raw material components are fully mixed to obtain a mixture. First, the temperature of the mixture is raised from 20°C to 80°C for 160s; then the temperature is raised from 80°C to 120°C for 60s; finally, the temperature is raised from 120°C to 200°C , it took 70s to obtain the heat-treated mixture;

[0014] 3) Extrude the mixture obtained in step 2) in the extruder, extrusion conditions: barrel temperature: 182±2°C, confluent core temperature: 175±2°C, head te...

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Abstract

The invention discloses a preparation method of a corrosion-resisting underground communication tubing, the corrosion-resisting underground communication tubing comprises the following raw materials by weight part: 50-52 parts of amber resin, 7-9 parts of vinyl acetate, 1.5-3 parts of modified chabazite, 4.5-6 parts of calcium zinc stabilizing agent, 2.5-3.5 parts of calcium antimonite, 1.8-2.2 parts of polyethylene wax, 3.5-4. 5 parts of antiseptic, 8.5-10.5 parts of nano level silica and 1.3-2.5 parts of lead-containing zinc oxide. According to the invention, toughness is increased, tubing destroy sensitivity is reduced, corrosion resistant performance is good, long-term intensity influence is little, service life of the communication tubing is prolonged, comprehensive performance of the product is greatly increased, and the preparation method has wide market prospect.

Description

technical field [0001] The invention relates to the field of pipe production, in particular to a method for preparing corrosion-resistant buried communication pipes. Background technique [0002] Compared with PE pipes, PVC pipes have better tensile and compressive strength, excellent corrosion resistance and lower price. They are suitable as communication pipes, but they are prone to brittleness during use, which affects their service life. In order to ensure the permanence of the toughness of PVC pipes, PVC pipes need to be modified. If only a certain type of elastomer or a certain type of rigid body is used for toughening, it will cause an imbalance in the performance indicators of toughness, stiffness, and elastic modulus. Therefore, it is manufactured It is the main technical problem at present to maintain high strength while resisting impact and cracking, and to have good corrosion resistance. Contents of the invention [0003] The purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L93/00C08L23/06C08K13/02C08K3/24C08K3/36C08K3/22B29C47/92B29C48/92
Inventor 梅章文蒋林余文辉
Owner 安徽电信器材贸易工业有限责任公司
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