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Continuous production of PP double-wall corrugated pipe with high-bending elastic modulus and production method thereof

A bending elastic modulus, double-wall bellows technology, applied in the direction of hoses, pipes, tubular objects, etc., can solve the problems of poor impact resistance, affecting service life, and small bending elasticity, and achieve high tensile strength, Improve the elasticity of the outer wall and the effect of good bending elasticity

Pending Publication Date: 2019-02-22
FUJIAN SHENGDATONG ENERGY SAVING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the existing double-wall corrugated pipe is in use, it is not easy to cut because the socket and the interface are connected by threads. Because the thickness of the socket is thin, it is easy to be damaged when plugged in, and it is not easy to plug in, which affects the service life and affects the construction. It causes inconvenience, and at the same time, when fighting against geological disasters, the bending elasticity is small, the impact resistance is not strong, and it is easy to be damaged, and it is easy to be damaged during the construction process

Method used

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  • Continuous production of PP double-wall corrugated pipe with high-bending elastic modulus and production method thereof
  • Continuous production of PP double-wall corrugated pipe with high-bending elastic modulus and production method thereof
  • Continuous production of PP double-wall corrugated pipe with high-bending elastic modulus and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A kind of high flexural elastic modulus continuous production PP double-wall corrugated pipe of the present invention comprises the following steps during production:

[0042] It includes an inner wall tube and an outer wall tube. Calculated by weight ratio, the composition of the inner wall tube includes 100 parts of polypropylene resin, 10 parts of recycled materials, 20 parts of high elastic water-based polyurethane resin, 2 parts of isocyanate curing agent, heavy carbonic acid 30 parts of calcium, 10 parts of stearic acid, 5 parts of desiccant, 5 parts of blue mother, 10 parts of talcum powder; the composition of the outer wall tube includes 100 parts of polypropylene resin, 10 parts of recycled materials, 15 parts of natural rubber, 1 part of vulcanizing agent, 1 part of accelerator, 40 parts of light calcium carbonate, 10 parts of stearic acid, 5 parts of desiccant, 5 parts of black masterbatch, 10 parts of talcum powder.

[0043] S1. Material preparation: Prepare...

Embodiment 2

[0052] A kind of high flexural elastic modulus continuous production PP double-wall corrugated pipe of the present invention comprises the following steps during production:

[0053] Including an inner wall tube and an outer wall tube, calculated by weight ratio, the composition of the inner wall tube includes 110 parts of polypropylene resin, 12 parts of recycled materials, 25 parts of high elastic water-based polyurethane resin, 2.5 parts of isocyanate curing agent, heavy carbonic acid 55 parts of calcium, 15 parts of stearic acid, 7 parts of desiccant, 8 parts of blue mother, 15 parts of talcum powder; 1.5 parts of vulcanizing agent, 1.5 parts of accelerator, 50 parts of light calcium carbonate, 15 parts of stearic acid, 7 parts of desiccant, 8 parts of black masterbatch, 15 parts of talcum powder.

[0054] S1. Material preparation: Prepare the materials for the inner wall pipe and the outer wall pipe respectively according to the weight ratio.

[0055] Inner wall pipe mat...

Embodiment 3

[0063] A kind of high flexural elastic modulus continuous production PP double-wall corrugated pipe of the present invention comprises the following steps during production:

[0064] It includes an inner wall tube and an outer wall tube. Calculated by weight ratio, the composition of the inner wall tube includes 120 parts of polypropylene resin, 15 parts of recycled materials, 30 parts of high elastic water-based polyurethane resin, 3 parts of isocyanate curing agent, heavy carbonic acid 80 parts of calcium, 20 parts of stearic acid, 10 parts of desiccant, 10 parts of blue mother, 20 parts of talc; the composition of the outer wall tube includes 120 parts of polypropylene resin, 15 parts of recycled materials, 30 parts of natural rubber, 2 parts of vulcanizing agent, 2 parts of accelerator, 60 parts of light calcium carbonate, 20 parts of stearic acid, 10 parts of desiccant, 10 parts of black masterbatch, 20 parts of talcum powder.

[0065] S1. Material preparation: Prepare th...

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Abstract

The invention discloses a continuous production of a PP double-wall corrugated pipe with high-bending elastic modulus and a production method thereof. The PP double-wall corrugated pipe comprises a pipe body and a connector. The pipe body is internally provided with a PP-HM polypropylene smooth layer. The PP-HM polypropylene smooth layer is connected with the PP-HM polypropylene wave pattern layerin an attached mode. The PP-HM polypropylene wave pattern layer is connected with a first steel wire layer in an attached mode. A talcum powder composite material layer is connected with the first steel wire layer in an attached mode. A first reinforcing rib is arranged on the talcum powder composite material layer. A silica gel sealing ring is fixedly arranged in the connector. The silica gel sealing ring is connected to the tube body in a sleeved mode. A second steel wire layer is arranged on the connector, and a second reinforcing rib is arranged on the second steel wire layer. According to the double-wall corrugated pipe, the double-wall corrugated pipe can be simply and conveniently connected, and meanwhile, the double-wall corrugated pipe is convenient to cut without affecting connection; the bending elasticity is large, the impact resistance is high, and normal use can be realized after the geological changes.

Description

technical field [0001] The invention belongs to the field of corrugated pipe production, and more specifically relates to a continuous production of PP double-wall corrugated pipe with high bending elastic modulus. At the same time, the invention also relates to a production method for continuous production of PP double-wall corrugated pipes with high flexural elastic modulus. Background technique [0002] Double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has developed from a single variety to a complete product series. At present, the production process and application technology are very mature. Due to its excellent performance and relatively economical cost, it has been greatly promoted and applied in developed countries such as Europe and the United States. In my country, the promotion an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/112F16L33/18B29C48/09B29C48/025B29C48/21B29C48/151C08L23/12C08L75/04C08L7/00C08K13/02C08K3/34C08K3/26C08K5/09B29L23/00B29K23/00
CPCF16L11/112F16L33/006F16L33/18C08L23/12C08K2003/265C08L2203/18B29L2023/18B29K2023/12C08L75/04C08K13/02C08K3/26C08K3/34C08K5/09C08L7/00
Inventor 何小梅
Owner FUJIAN SHENGDATONG ENERGY SAVING TECH CO LTD
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