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High elasticity PE modified material, and its application in rectification and circle-restoration of PE pipe fittings

A modified material, high elasticity technology, applied in the direction of pipes/pipe joints/fittings, pipe connection layout, mechanical equipment, etc., can solve the problems of low surface hardness, low creep resistance, positioning deviation, etc., to achieve low cost, The effect of increasing Shore hardness and increasing elastic modulus

Inactive Publication Date: 2012-09-12
上海乔治费歇尔亚大塑料管件制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the powerful action of hole opening force, the saddle-shaped main body is easily deformed. If the saddle-shaped main body cannot be quickly corrected and rounded, it will lead to positioning deviation and unfavorable opening
[0003] The elastic modulus of polyethylene raw materials is small, the surface hardness is low, and the creep resistance is low. The ring stiffness of the produced pipes cannot meet the requirements, especially for pipes that need to be quickly corrected and rounded.

Method used

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  • High elasticity PE modified material, and its application in rectification and circle-restoration of PE pipe fittings
  • High elasticity PE modified material, and its application in rectification and circle-restoration of PE pipe fittings
  • High elasticity PE modified material, and its application in rectification and circle-restoration of PE pipe fittings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of highly elastic PE modified material, it comprises following components and content (weight part):

[0020]

[0021] Preparation:

[0022] 1) Put the above raw materials into the high-speed mixer in turn, mix at 60°C for 40 minutes at high speed and release;

[0023] 2) Then send it into a twin-screw extruder, control the extrusion temperature of the extruder to be 220° C., and extrude and granulate;

[0024] 3) After radiation cross-linking treatment, product A is obtained.

Embodiment 2

[0026] A kind of highly elastic PE modified material, it comprises following components and content (weight part):

[0027]

[0028]

[0029] The preparation method refers to Example 1 to obtain product B.

Embodiment 3

[0031] A kind of highly elastic PE modified material, it comprises following components and content (weight part):

[0032]

[0033] The preparation method refers to Example 1 to obtain product C.

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Abstract

The invention provides a high elasticity PE modified material, which comprises the following components, by weight, 100 parts of the PE, 15-40 parts of POE, 10-30 parts of a filler, 20-40 parts of carbon black, and 5-10 parts of a coupling agent. The high elasticity PE modified material allows the Shore hardness and the elastic modulus of a PE resin to be greatly improved, prepared products subjected to bearing deformation to be rapidly restored and the restoration cost to be low, and is especially suitable for PE fused saddle-shaped pipe fittings to be subjected to rapid rectification and circle-restoration.

Description

technical field [0001] The invention relates to a high-elasticity PE modified material and its application in rectifying round PE pipe fittings. Background technique [0002] At present, most of the buried pipelines used in municipal projects such as water supply and gas are made of polyethylene materials. Among them, a large number of electrofusion pipe fittings are used. In order to ensure the safety of the pipeline, the performance requirements of the electrofusion pipe fittings are higher than those of the pipes. Among them, the electric fusion saddle-type pipe fittings are widely used, including the lower bottom bracket, the upper saddle-shaped main body, the opening device in the saddle-shaped main body, and the sealing device on the upper end of the saddle-shaped main body. When the electrofusion saddle-shaped pipe fitting is used, the drilling knife in the opening device moves up and down along the inner wall of the saddle-shaped main body, and drills holes on the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/02C08K3/04B29B9/06B29C47/92C08J3/28C08J3/24F16L47/03B29C48/92
CPCB29C48/04B29C48/40B29C48/92B29C2948/92704B29C2948/92895
Inventor 孙德刚卢培丰娄玉川王建芬潘浩杨丽慧
Owner 上海乔治费歇尔亚大塑料管件制品有限公司
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