Polyethylene pipe for trenchless engineering

A polyethylene pipe, trenchless technology, applied in the field of plastic pipes, can solve the problems of urban traffic jam construction surrounding environment, pollution, and a large number of pipe network construction, to ensure construction effect and safety quality, reduce friction resistance, and improve resistance. The effect of grinding performance

Pending Publication Date: 2022-03-15
福建亚通新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As urban construction becomes more and more complicated, excavation and repair of the pipe network requires a lo...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A polyethylene pipe for non-excavation engineering, including 100kg of high-density polyethylene, 3kg of mica, 6kg of functional modifier, 0.5kg of silane coupling agent, 3kg of color masterbatch and 3kg of anti-oxidation masterbatch.

[0024] The preparation method of the functional modifier is as follows.

[0025] S1: In container 1, add N,N-dimethylacetamide (DMAC) and polyvinylidene fluoride, heat to 80°C and stir at 120r / min for 4h.

[0026] S2: In container 2, add glycerol methacrylate and polyacrylamide, and vibrate ultrasonically for 30 minutes at a constant temperature of 35°C.

[0027] S3: Pour the solution in container 2 into container 1, stir at 80°C and 120r / min for 10 minutes, then pour all the solution into a container with 0-20°C cold water, rinse, precipitate and dry to obtain functional modification agent.

[0028] Further, the polyvinylidene fluoride is in powder form with a particle size of 800 mesh.

[0029] The preparation method of the above-me...

Embodiment 2

[0035] A polyethylene pipe for non-excavation engineering, including 100kg of high-density polyethylene, 4kg of mica, 10kg of functional modifier, 1kg of silane coupling agent, 3kg of color masterbatch and 3kg of anti-oxidation masterbatch.

[0036] The preparation method of the functional modifier is as follows.

[0037] S1: In container 1, add N,N-dimethylacetamide (DMAC) and polyvinylidene fluoride, heat to 80°C and stir at 120r / min for 4h.

[0038] S2: In container 2, add glycerol methacrylate and polyacrylamide, and vibrate ultrasonically for 30 minutes at a constant temperature of 35°C.

[0039] S3: Pour the solution in container 2 into container 1, stir at 80°C and 120r / min for 10 minutes, then pour all the solution into a container with 0-20°C cold water, rinse, precipitate and dry to obtain functional modification agent.

[0040] Further, the polyvinylidene fluoride is in powder form with a particle size of 300 mesh.

[0041] The preparation method of the above-men...

Embodiment 3

[0043] A polyethylene pipe for non-excavation engineering, including 100kg of high-density polyethylene, 3kg of mica, 8kg of functional modifier, 0.8kg of silane coupling agent, 3kg of color masterbatch and 3kg of anti-oxidation masterbatch.

[0044] The preparation method of the functional modifier is as follows.

[0045] S1: In container 1, add N,N-dimethylacetamide (DMAC) and polyvinylidene fluoride, heat to 100°C and stir at 120r / min for 4h.

[0046] S2: In container 2, add glycerol methacrylate and polyacrylamide, and vibrate ultrasonically for 1 hour at a constant temperature of 35°C.

[0047] S3: Pour the solution in container 2 into container 1, stir at 100°C and 120r / min for 10 minutes, then pour all the solution into a container with cold water at 0-20°C, rinse, precipitate and dry to obtain functional improvement. sex agent.

[0048] Further, the polyvinylidene fluoride is in powder form with a particle size of 800 mesh.

[0049] The preparation method of the abo...

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Abstract

The invention provides a polyethylene pipe for trenchless engineering. The polyethylene pipe is prepared from the following raw materials in parts by weight: 100 parts of high-density polyethylene, 3-5 parts of mica, 5-10 parts of a functional modifier, 0.5-1 part of a silane coupling agent, 3-5 parts of color master batch and 3-5 parts of antioxidant master batch. The functional modifier is polyacrylamide activated and modified by glyceryl methacrylate and polyvinylidene fluoride. The polyethylene pipe for trenchless engineering provided by the invention has the beneficial effects that the inner wall of the pipe is modified by polyacrylamide, so that the frictional resistance of water in the pipe is effectively reduced, and the fluid conveying capacity is improved; polyvinylidene fluoride is utilized, so that the wear resistance of the surface of the pipe is improved, and the pipe cannot be greatly damaged in the pipe penetrating process; meanwhile, a small amount of mica is added, so that the strength of the pipe is improved, and the construction effect and the safety quality before and after repair are ensured on the premise that the overall flexibility of the pipe is not influenced.

Description

technical field [0001] The invention belongs to the field of plastic pipes, in particular to a polyethylene pipe for non-excavation engineering. Background technique [0002] With the acceleration of modern urbanization, more and more buried pipes are used, such as buried drainage and sewage pipes, communication power pipes, water supply pipes, gas pipes, etc. However, buried pipelines are also aging year by year, and need to be replaced and repaired to ensure the normal supply of resources needed by the city. As urban construction becomes more and more complicated, excavation and repair of the pipe network requires a lot of construction, which will inevitably lead to urban traffic congestion and pollution of the surrounding environment. [0003] The emergence of pipes for non-excavation engineering has solved this problem. The construction method of this pipe does not need to excavate the entire pipeline to be repaired, but only needs to be excavated at both ends of the pi...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L33/26C08L27/16C08K3/34C08K5/1515C08K5/54
CPCC08L23/06C08L2203/18C08L2207/062C08L33/26C08L27/16C08K3/34C08K5/1515C08K5/54
Inventor 马鑫彭伏弟陈晓梅林知高洁李文权
Owner 福建亚通新材料科技股份有限公司
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