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Enhanced HDPE (High-Density Polyethylene) double-wall corrugated pipe and preparation method thereof

A double-wall corrugated pipe, formula technology, applied in the direction of pipes, rigid pipes, mechanical equipment, etc., can solve the problems of poor pipe ring stiffness and creep resistance, affecting product service life, poor low temperature impact performance, etc., to achieve ring stiffness. High, prolonged service life, strong creep resistance effect

Active Publication Date: 2015-03-25
HESHAN LESSO IND DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The U-PVC double-wall corrugated pipes used in drainage and sewage pipes in my country have the advantages of good rigidity and low price; however, they also have the disadvantage of poor low-temperature impact performance, and are very easy to be damaged especially during construction in northern winter
The HDPE double-wall corrugated pipe has obvious advantages in low temperature toughness, but due to the characteristics of PE material, its rigidity is worse than that of cement pipe, and the ring stiffness and creep resistance of the pipe are worse than that of PVC corrugated pipe. During long-term use, it is easy to Deformed by gravity, affecting the service life of the product
[0003] Reinforced HDPE double-wall corrugated pipes with low temperature toughness, rigidity, ring stiffness and creep resistance are rarely involved in the prior art; therefore, it is of great significance to develop a reinforced HDPE double-wall corrugated pipe

Method used

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  • Enhanced HDPE (High-Density Polyethylene) double-wall corrugated pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A reinforced HDPE double-wall corrugated pipe, the formulation of the HDPE double-wall corrugated pipe consists of the following raw materials in parts by weight:

[0023] Polyethylene PN049 100 parts;

[0024] 40 parts of wood flour;

[0025] 1 part of titanate coupling agent;

[0026] 7 parts of styrene-butadiene-styrene block copolymer;

[0027] Wherein, the mesh number of the wood flour is 100 mesh; the ratio of styrene to butadiene in the styrene-butadiene-styrene block copolymer is 60:40.

[0028] The preparation method of described HDPE double-wall bellows comprises the steps:

[0029] Dry the wood powder at 120°C for 1 hour in a special drying production line to make its moisture lower than 300mg / kg, mix it with a titanate coupling agent after cooling to room temperature, heat to 60°C, and dry it at 800 rpm Stir and disperse at high speed for 5 minutes, then add styrene-butadiene-styrene block copolymer, stir evenly and then cool automatically; then mix the ...

Embodiment 2

[0031] A reinforced HDPE double-wall corrugated pipe, the formulation of the HDPE double-wall corrugated pipe consists of the following raw materials in parts by weight:

[0032] Polyethylene PN049 100 parts;

[0033] 50 parts of wood powder;

[0034] 2 parts of titanate coupling agent;

[0035] 8 parts of styrene-butadiene-styrene block copolymer;

[0036] Wherein, the mesh number of the wood flour is 80 mesh; the ratio of styrene and butadiene in the styrene-butadiene-styrene block copolymer is 55:45;

[0037] The preparation method of described HDPE double-wall bellows comprises the steps:

[0038] Dry the wood powder at 160°C for 2 hours in a special drying production line to make its moisture lower than 300mg / kg, mix it with a titanate coupling agent after cooling to room temperature, heat it to 65°C, and dry it at 1000 rpm Stir and disperse at high speed for 6 minutes, then add styrene-butadiene-styrene block copolymer, stir evenly and then cool automatically; then m...

Embodiment 3

[0040] A reinforced HDPE double-wall corrugated pipe, the formulation of the HDPE double-wall corrugated pipe consists of the following raw materials in parts by weight:

[0041] Polyethylene PN049 100 parts;

[0042] 60 parts of wood powder;

[0043] 3 parts of titanate coupling agent;

[0044] 9 parts of styrene-butadiene-styrene block copolymer;

[0045]Wherein, the mesh number of the wood powder is 110 mesh; the ratio of styrene and butadiene in the styrene-butadiene-styrene block copolymer is 58:42;

[0046] The preparation method of described HDPE double-wall bellows comprises the steps:

[0047] Dry the wood powder at 180°C for 3 hours in a special drying production line to make its moisture lower than 300mg / kg. After cooling to room temperature, mix it with a titanate coupling agent, heat it to 70°C, and heat it at 1100 rpm Stir and disperse at high speed for 7 minutes, then add styrene-butadiene-styrene block copolymer, stir evenly and then cool automatically; the...

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Abstract

The invention relates to an enhanced HDPE (High-Density Polyethylene) double-wall corrugated pipe and a preparation method thereof. The formula of the enhanced HDPE double-wall corrugated pipe is prepared from the following raw materials in parts by weight: 100 parts of HDPE, 40-60 parts of wood flour, 1-3 parts of a titanate coupling agent and 7-9 parts of styrene-butadiene-styrene block copolymer, wherein the mesh of the wood flour is 80-110, and the ratio of styrene to butadiene in the styrene-butadiene-styrene block copolymer is (50: 50) to (60: 40). The enhanced HDPE double-wall corrugated pipe prepared by the preparation method has relatively good low-temperature impact toughness, good rigidity, high ring stiffness and excellent creep resistance and meanwhile has relatively low cost, thereby having broad application prospects.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to a reinforced HDPE double-wall corrugated pipe and a preparation method thereof. Background technique [0002] With the sustained and stable high-speed growth of my country's national economy, it provides a good macro environment and broad space for urban infrastructure construction. With my country's increasing emphasis on environmental protection, governments at all levels from the central government to local governments have issued a series of policies and regulations on water conservation, pollution control and environmental protection. Water supply, water saving, drainage and sewage treatment will become the focus of urban municipal construction in the future, which provides market development space for the promotion and application of large-diameter plastic pipes. Because structural wall pipes can save raw materials and reduce costs, structural wall pipes have become ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L53/02C08K5/10F16L9/133
CPCC08L23/06C08L2203/18C08L2205/03C08L97/02C08L53/02C08K5/10
Inventor 代营伟李锦松代卫东
Owner HESHAN LESSO IND DEV
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