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Preparation method of radiation-resistant communication pipe

A communication pipe and anti-radiation technology, which is applied in the field of preparation of radiation-resistant communication pipes, can solve the problems of PE pipes such as easy aging, low strength, and low service life, so as to avoid uneven mixing and distribution, avoid decomposition reactions, and reduce processing time Effect

Active Publication Date: 2016-08-31
WUJIANG JIATONG OPTICAL FIBER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the commonly used PE pipes also have some defects: relatively low strength, easy to be damaged during laying or use, and poor weather resistance to the environment. In cold regions, the temperature below zero is not suitable for laying construction. At this time, the polyethylene pipe is easy to be brittle; in addition, the PE pipe is easy to age and has a low service life
However, there are relatively few high-density polyethylene pipes in our country. Now we hope to improve the strength of polyethylene communication pipes, improve their environmental resistance, and broaden the temperature range of their use environment by doing some modification research on polyethylene.
[0005] At present, the commonly used high-density polyethylene communication pipes have poor toughness, need to be toughened, have poor radiation resistance, are easy to age, and have poor electrical shielding performance

Method used

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  • Preparation method of radiation-resistant communication pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1 discloses a method for preparing a radiation-resistant communication pipe, which includes the following steps:

[0027] Step 1. Take 100 parts of high-density polyethylene and 15 parts of glass fiber for drying treatment, add a high-speed mixer, and mix for 1.5 minutes; put the mixture into a twin-screw extruder to extrude and granulate to obtain glass fiber reinforcement High-density polyethylene; the extrusion granulation process conditions are: the temperature of the first stage is 110°C, the temperature of the second stage is 120°C, the temperature of the third stage is 125°C, the temperature of the fourth stage is 130°C, the temperature of the fifth stage is The temperature of the sixth stage is 135°C, the temperature of the sixth stage is 140°C, the temperature of the head is 155°C, the temperature of the melt is 150°C, the feeding speed is 15.5r / min, the speed of the main engine is 36.5r / min, and the traction speed is 43.5r / min .

[0028] Step 2, th...

Embodiment 2

[0037] The preparation process in Example 2 is the same as that in Example 1, the difference lies in the formula of the pipe material, and the material formula in Step 2 is shown in Table 2.

[0038] Formulation table in table 2 embodiment 2

[0039]

Embodiment 3

[0041] The preparation process in Example 3 is the same as that in Example 1, the difference lies in the formula of the pipe material, and the material formula in Step 2 is shown in Table 3.

[0042] Formulation table in the embodiment 3 of table 3

[0043]

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Abstract

The invention discloses a preparation method of a radiation-resistant communication pipe. The method comprises the following steps: (1) preparing glass fiber reinforced high-density polyethylene; (2) modifying the glass fiber reinforced high-density polyethylene; (3) carrying out drying; (4) feeding the material to a twin-screw extruder for extruding and granulating; (5) feeding aggregates prepared in the step (4) into an injection molding machine after drying, and carrying out injection molding to prepare a molded communication pipe; and (6) carrying out performance analysis on the communication pipe prepared in the step (5). Through improvement of the material formula of the communication pipe and control on the preparation technology, the tenacity of the communication pipe is improved; and the communication pipe has high specific strength and specific stiffness and relatively good electromagnetic shielding performance.

Description

technical field [0001] The invention relates to the field of communication pipes, in particular to a method for preparing radiation-resistant communication pipes. Background technique [0002] PE pipes are one of the most commonly used pipes except PVC pipes. PE pipes have superior corrosion resistance, good strength, can withstand a certain strain capacity, and have a long service life. They are light in weight, easy to install, and have good flexibility. Low temperature resistance and other advantages, used in many fields. [0003] However, the commonly used PE pipes also have some defects: relatively low strength, easy to be damaged during laying or use, and poor weather resistance to the environment. In cold regions, the temperature below zero is not suitable for laying construction. At this time, the polyethylene pipe is easy to be brittle; in addition, the PE pipe is easy to age and has a low service life. [0004] In order to solve the above problems, high-density p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08L91/06C08L51/06C08K13/04C08K7/14C08K3/26C08K5/09B29B9/06B29C45/78B29C45/77B29C47/92B29C48/92
CPCB29B9/06B29C45/77B29C45/78B29C48/92B29C2948/9259B29C2948/92704C08L23/06C08L2201/08C08L2203/18C08L2203/20C08L2205/03C08L2207/062C08L23/0815C08L91/06C08K13/04C08K7/14C08K2003/265C08K5/09C08L51/06
Inventor 王本林
Owner WUJIANG JIATONG OPTICAL FIBER CO LTD
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