Modified polypropylene wave crest double-wall pipe and preparation method of modified polypropylene material thereof

A technology of polypropylene material and peak tube, which is applied in the direction of electrical components, etc., can solve the problems of impact resistance and compression resistance that need to be modified, the processing technology of double-walled pipes is complicated, and the weight of double-walled pipes is increased, so as to achieve light weight , simple structure and small consumables

Pending Publication Date: 2020-12-11
鲁姣利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This double-walled pipe includes an inner pipe and an outer pipe, and the outer pipe is a corrugated outer pipe covering the outer surface of the inner pipe; since the outer pipe is a corrugated outer pipe with both peaks and troughs, and the outer pipe needs to The outer surface of the entire inner tube, therefore, the outer tube consumes a lot of material, which will increase the weight of the double-walled tube, and the processing technology of the double-walled tube is m

Method used

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  • Modified polypropylene wave crest double-wall pipe and preparation method of modified polypropylene material thereof
  • Modified polypropylene wave crest double-wall pipe and preparation method of modified polypropylene material thereof
  • Modified polypropylene wave crest double-wall pipe and preparation method of modified polypropylene material thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A kind of modified polypropylene peak double-wall pipe of the present embodiment, refer to its structure Figure 1-2 , including inner tube 1 and outer tube 2. Preferably, the inner tube 1 is in the shape of a hollow cylinder, and the inner tube 1 in the shape of a hollow cylinder is more convenient for processing and forming, and is suitable for mass production, and the inner peripheral wall of the inner tube 1 in the shape of a hollow cylinder is smooth and has no corners and other obstacles, it is convenient to quickly pass through multiple cables, and then play a role in protecting the cables.

[0036] Wherein, the outer tube 2 includes a plurality of independent peak tube bodies 21, each peak tube body 21 surrounds the outer peripheral wall of the inner tube 1, and each peak tube body 21 is arranged at intervals along the length direction of the inner tube 1 on the inner tube 1. The outer peripheral wall, so that the outer peripheral wall of the inner tube 1 forms...

Embodiment 2

[0053] A modified polypropylene peak double-wall pipe in this embodiment has the same structure as that of Embodiment 1, and the difference between it and Embodiment 1 is that the modified polypropylene material is composed of the following components in parts by weight:

[0054]

[0055] Wherein, the modified inorganic particles are composed of the following components in parts by weight:

[0056]

[0057] Among them, the polypropylene resin is preferably PP-R; the phenyl content in the methyl vinyl phenyl silicone rubber is preferably 15% (ie C 6 h 5 / Si=15%).

[0058] Wherein, the peroxide crosslinking agent is dicumyl peroxide and 2,5-dimethyl-2,5-bis(t-butylperoxy)hexyne mixed at a mass ratio of 1:1. The antioxidant is antioxidant 1076. The light stabilizer is light stabilizer 770.

[0059] The preparation method of the modified polypropylene material comprises the following preparation steps:

[0060] Step S1: Mix and grind hollow glass microspheres and light ...

Embodiment 3

[0064] A modified polypropylene peak double-wall pipe in this embodiment has the same structure as that of Embodiment 1, and the difference between it and Embodiment 1 is that the modified polypropylene material is composed of the following components in parts by weight:

[0065]

[0066] Wherein, the modified inorganic particles are composed of the following components in parts by weight:

[0067]

[0068] Among them, the polypropylene resin is preferably PP-R; the phenyl content in the methyl vinyl phenyl silicone rubber is preferably 12% (ie C 6 h 5 / Si=12%).

[0069] Wherein, the peroxide crosslinking agent is dicumyl peroxide and dicumyl peroxide mixed in a mass ratio of 1:1. The antioxidant is antioxidant 168 and antioxidant 1076 mixed in mass ratio. The light stabilizer is light stabilizer 2002.

[0070] The preparation method of the modified polypropylene material comprises the following preparation steps:

[0071] Step S1: Mix and grind hollow glass microsp...

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Abstract

The invention provides a modified polypropylene wave crest double-wall pipe and a preparation method of a modified polypropylene material of the modified polypropylene wave crest double-wall pipe. Themodified polypropylene wave crest double-wall pipe comprises an inner pipe and an outer pipe, wherein the outer pipe comprises a plurality of mutually independent wave-crest pipe bodies, the wave-crest pipe bodies are annular so as to enable the wave-crest pipe bodies to surround the outer peripheral wall of the inner pipe, the wave-crest pipe bodies are arranged on the outer circumferential wallof the inner pipe at intervals in the length direction of the inner pipe so as to form wave crests on the outer circumferential wall of the inner pipe. The wave crest pipe body and the inner pipe areboth formed by processing a modified polypropylene material, and the modified polypropylene material is composed of 80-90 parts of polypropylene resin, 6-10 parts of methyl vinyl phenyl silicone rubber, 7-13 parts of modified inorganic particles, 0.3-1.5 parts of an antioxidant, 0.3-1.5 parts of a light stabilizer and 0.02-0.05 part of a peroxide initiator. The modified polypropylene wave crest double-wall pipe is more reasonable in design, and has the advantages of being small in material consumption, light in weight, flexible in application and good in impact resistance and compression resistance.

Description

technical field [0001] The invention relates to the technical field of pipe materials, in particular to a modified polypropylene wave crest double-wall pipe and a preparation method of the modified polypropylene material. Background technique [0002] At present, plastic pipes, such as HDPE pipes, MPP pipes, and PVC pipes, are widely used in buried power cable protection sleeves due to their light weight, good electrical insulation, corrosion resistance, cold resistance, and good chemical stability. . [0003] Most of the traditional buried power cable protective sleeves are single-wall pipes, and the single-wall pipes have poor compression resistance, which makes the single-wall pipes buried underground vulnerable to deformation due to external forces, which affects their normal use. Therefore, in recent years, various double-wall pipes have appeared on the market. This double-walled pipe includes an inner pipe and an outer pipe, and the outer pipe is a corrugated outer p...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L83/07C08K13/06C08K9/10C08K7/28C08K3/26H02G3/04
CPCC08L23/12H02G3/0481C08L2203/18C08K2003/265C08L2203/202C08L83/04C08K13/06C08K9/10C08K7/28C08K3/26
Inventor 鲁姣利
Owner 鲁姣利
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