PVC communication tubing preparation technology

A communication pipe and preparation process technology, applied in the field of PVC communication pipe preparation technology, can solve the problems of unbalanced stiffness, elastic modulus performance indicators, easy to produce brittleness, affecting service life, etc. Competitive effect

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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  • Summary
  • 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 preparation process for PVC communication pipes, comprising the following process steps:

[0012] 1) In parts by weight, it is composed of the following raw materials: epoxy resin 48, calcium stearate 8, talc powder 4.5, plasticizer 3.3, methyl isobutyl ketone 5, polymer ester calcium 5, silicone oil 5, 1 part of paraffin, 2.3 parts of compatibilizer;

[0013] 2) First mix the raw materials in the above weight parts evenly, and then carry out vacuum, boost, constant temperature and constant pressure stages. The parameters and processes of each stage are: vacuum: 0.01-0.02MPa, vacuum time: 0.4-0.6h; : 0.02~1.2MPa, boost time is 0.6~0.8h; constant temperature and pressure: 1.0MPa, constant pressure time is 1~1.2h, constant temperature is 80~85℃;

[0014] 3) Finally, add a single-screw extruder, plasticize and form at 185°C, and the extruded tube blank is stretched longitudinally into the rotating forming mold, and then vacuum-absorbed and stretched transversely to obta...

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PUM

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Abstract

The invention discloses a PVC communication tubing preparation technology, the PVC communication tubing comprises the following components by weight part: 46-50 parts of epoxy resin, 7.5-8.5 parts of calcium stearate, 3.5-5.5 parts of powdered steatile, 2.5-4 parts of plasticizer, 4.5-5.5 parts of methyl isobutyl ketone, 4-6 parts of high-molecular esteryl calcium, 4.5-5.5 parts of silicone oil, 0.8-1.2 parts of paraffin and 1.2-3.5 parts of compatilizer. The antioxidation performance of the PVC tubing can be greatly increased, cost is low, compared with prior art, the PVC tubing is suitable for popularization and application. The PVC tubing has the advantages of high intensity and high-toughness, strong impact resistance capability, low cost of product components and large market competition.

Description

technical field [0001] The invention relates to the field of pipe preparation, in particular to a preparation process of PVC 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 is to provide a prepa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L27/06C08L83/04C08K13/02C08K5/098C08K3/34C08K5/07B29C69/00
Inventor 梅章文陆军张坤
Owner 安徽电信器材贸易工业有限责任公司
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