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High-ring-stiffness internal rib-reinforced corrugated pipe and preparation method thereof

A corrugated pipe and rigidity technology, which is applied in the field of high ring stiffness inner rib reinforced corrugated pipe and its preparation, can solve the problems of small operation space, unsatisfactory size requirements, increased material consumption, etc., and achieves good processing performance and cold resistance effect. Good and good flexibility

Active Publication Date: 2019-05-10
湖北盈禄塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the perspective of pipe structure, the ring stiffness of the pipe can be increased by increasing the wall thickness of the inner and outer walls, that is, the meter weight of the pipe can be increased. However, this method has a small operable space. The reason is that the wall thickness will shrink if it is too thick. The internal space of the pipe affects the passage of the fluid and does not meet the size requirements of the national standard for the inner diameter; on the other hand, the increase in the amount of material used will increase the production cost and transportation cost, and reduce the market competitiveness of the product

Method used

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  • High-ring-stiffness internal rib-reinforced corrugated pipe and preparation method thereof
  • High-ring-stiffness internal rib-reinforced corrugated pipe and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A corrugated pipe reinforced with inner ribs with high ring stiffness is obtained by extruding the outer layer ingredients and the inner layer ingredients through an extruder. The specific formula is shown in Table 1. Among them, the filler is a mixture of calcium carbonate, SCM whiskers and ultrafine glass beads with a mass ratio of 1:1:1, wherein calcium carbonate is obtained by surface modification of light calcium carbonate with aluminate coupling agent, The ultra-fine glass beads have a particle size of 3-5 μm, and the SCM whiskers are produced by Sichuan Mianyang Zhengye New Material Co., Ltd. The compatibilizer is maleic anhydride grafted polypropylene, the color masterbatch is black color masterbatch, and the high-density polyethylene adopts PE80 grade.

[0029] Specifically, it is prepared according to the following method, wherein the equipment used is, high-speed mixer: SHR type, Zhangjiagang Xinke Machinery Factory; twin-screw extruder: SHJ-50 type, Nanjing ...

Embodiment 2

[0034] A corrugated pipe reinforced with inner ribs with high ring stiffness is obtained by extruding the outer layer ingredients and the inner layer ingredients through an extruder. The specific formula is shown in Table 1. Among them, the filler is a mixture of calcium carbonate, SCM whiskers and ultrafine glass beads with a mass ratio of 2:1:2, and the high-density polyethylene is PE100 grade, and the rest are the same as in Example 1. The specific results are shown in Table 2.

Embodiment 3

[0036] A corrugated pipe reinforced with inner ribs with high ring stiffness is obtained by extruding the outer layer ingredients and the inner layer ingredients through an extruder. The specific formula is shown in Table 1. Among them, the filler is a mixture of calcium carbonate, SCM whiskers and ultrafine glass beads with a mass ratio of 1:1:2, and the rest are the same as in Example 1. The specific results are shown in Table 2.

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Abstract

The invention relates to a high-ring-stiffness internal rib-reinforced corrugated pipe. The high-ring-stiffness internal rib-reinforced corrugated pipe is prepared by extruding and shaping outer materials and inner materials with an extruder, wherein the outer materials is composed of, by weight part, 85-100 parts of high-density polyethylene, 15-25 parts of polypropylene, 5-15 parts of filler, 1-2 parts of bulking agent and 1-3 parts of color masterbatch; the inner materials is composed of 85-100 parts of high-density polyethylene, 15-25 parts of polypropylene, 1-2 parts of bulking agent and1-3 parts of color masterbatch. Compared with the prior art, the high-ring-stiffness internal rib-reinforced corrugated pipe is higher in ring stiffness, light in weigh per meter and capable of greatly reducing the costs of raw materials.

Description

technical field [0001] The invention relates to a corrugated pipe, in particular to a high ring rigidity internal rib reinforced corrugated pipe and a preparation method thereof. Background technique [0002] At present, the biggest hot spot of building water supply and drainage is the wide application of new plastic pipes. Ordinary drainage cast iron pipes and traditional cement concrete pipes have been replaced due to reasons such as easy corrosion, heavy weight, and inconvenient transportation and construction. Plastic buried drainage pipe has many advantages such as light weight, corrosion resistance, good sealing performance, strong adaptability to base surface and base surface changes, long service life, convenient transportation and installation, and low engineering cost. Buried drainage pipes are mainly used in large-scale sewage discharge, exhaust, ventilation of subways, tunnels, mines, etc., and low-pressure irrigation of farmland. [0003] Ring stiffness is a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L51/06C08K7/20C08K3/26C08K9/00F16L9/133
Inventor 张宇
Owner 湖北盈禄塑胶制品有限公司
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