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Double-wall corrugated pipe for use in summer and preparation method of double-wall corrugated pipe

A technology of double-wall corrugated pipes and raw materials, applied in the field of pipelines, can solve the problems of high temperature resistance, exposure to sunlight, large longitudinal elongation of pipes, etc., and achieve the effect of excellent tensile strength

Inactive Publication Date: 2019-06-28
HUISUN PIPELINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Double-wall corrugated pipe water supply pipes quickly occupy the market due to their light weight, smooth inner and outer walls, corrosion resistance, and good sealing performance; Ultraviolet rays and high temperatures are especially prevalent, and the above problems are more prominent

Method used

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  • Double-wall corrugated pipe for use in summer and preparation method of double-wall corrugated pipe
  • Double-wall corrugated pipe for use in summer and preparation method of double-wall corrugated pipe
  • Double-wall corrugated pipe for use in summer and preparation method of double-wall corrugated pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3、 comparative example 1-2

[0026] Embodiment 1-3, comparative example 1-2 provide a kind of double-wall corrugated pipe for summer respectively, they respectively comprise inner layer and outer layer that are arranged successively from inside to outside (concrete raw material formula is shown in Table 1), and its specific preparation process can be Conventional method is adopted: put the inner layer raw materials of the formula quantity into the mixer for mixing in sequence, the mixing temperature is 80°C, and the mixing time is 25min; 80°C, the stirring time is 25min; the inner layer raw material and the outer layer raw material are respectively added to two extruders, and the temperatures of the first, second, third, fourth, and fifth barrels are respectively 50°C, 180°C, 200°C, 210°C and 220°C, the die opening temperature is divided into four sections, the die opening first, second, third, and fourth section temperatures are 220°C, 220°C, 220°C and 225°C respectively, and the corrugated pipe is molded...

Embodiment 4

[0038] This example provides a double-wall corrugated pipe for summer use. Its raw material formula is the same as that in Example 1, the difference is that the preparation method is slightly different, specifically:

[0039] (a) Use a silane coupling agent to carry out surface treatment to the alkali-free glass fiber, and then carry out melt extrusion granulation with PPH; weigh the above-mentioned pellets, stearic acid, PE wax, wollastonite powder and heavy carbonic acid Calcium powder, stir and activate in the mixer at 70-90°C; add the rest of the outer layer raw materials, stir and dehumidify at 70-90°C, and discharge the materials for later use; weigh the stearic acid and PE wax in the formula , Heavy calcium carbonate, stir and activate in the mixer at 70-90°C; add the rest of the outer layer raw materials, stir and dehumidify at 70-90°C, and discharge the materials for use; after the same blending treatment, Use a twin-screw extruder to melt and extrude at 190-210°C, an...

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Abstract

The invention relates to a double-wall corrugated pipe for use in summer and a preparation method of the double-wall corrugated pipe. The double-wall corrugated pipe comprises an inner layer and an outer layer which are sequentially arranged, wherein the outer layer contains the following raw material components in parts by weight: 26-30 parts of PPH, 25-32 parts of HDPE, 3-8 parts of mPE, 30-40 parts of an inorganic filler, 2.5-3 parts of a lubricant, 1.5-2.5 parts of a color master batch, 2-2.5 parts of a coupling agent mixture, 0.2-0.5 part of an antioxidant, 0.2-0.25 part of an auxiliary antioxidant, 0.5-0.8 part of a light stabilizer and 0.2-0.5 part of an ultraviolet light absorber. The materials are uniformly mixed to mutually act so as to generate a comprehensive synergistic effect, so that the double-wall corrugated pipe has excellent tensile strength, hoop rigidity, simply supported beam impaction property and the like; and meanwhile, the double-wall corrugated pipe meets theconstruction requirements of strong ultraviolet light and high temperature in summer.

Description

technical field [0001] The invention belongs to the field of pipelines, and relates to a water supply pipe, in particular to a summer double-wall corrugated pipe and a preparation method thereof. Background technique [0002] Double-wall corrugated pipe (the main component is usually high-density polyethylene, HDPE) 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. Double-wall corrugated pipe water supply pipes quickly occupy the market due to their light weight, smooth inner and outer walls, corrosion resistance, and good sealing performance; Ultraviolet rays and high temperatures are especially strong, and the above-mentioned problems are more prominent. Contents of the invention [0003] The object of the present invention is to provide a double-wall ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B1/08B32B27/32B32B27/08B32B27/18B32B27/20C08L23/06C08L23/12C08L23/14C08L23/08C08K13/04C08K7/14C08K3/26C08K3/34C08K5/09C08K13/02B29C48/13B29C48/21
CPCB29C48/13B29C48/21B32B1/08B32B27/08B32B27/18B32B27/20B32B27/32C08K3/26C08K3/34C08K5/09C08K7/14C08K13/02C08K13/04C08L23/06C08L23/08C08L23/12C08L23/14
Inventor 张波
Owner HUISUN PIPELINE