Heavyweight corrugated pipe for concrete

A corrugated pipe and concrete technology, applied in the field of heavy corrugated pipe for concrete and its preparation, to achieve good tensile strength and ring stiffness, strong impact resistance, and good durability

Inactive Publication Date: 2014-10-01
ANHUI HAINA SICHUAN PLASTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is...

Method used

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Embodiment 1

[0019] A heavy corrugated pipe for concrete, which is composed of the following raw materials in parts by weight:

[0020] Calcium acetylacetonate 1-2, hexamethylphosphoramide 0.7, diazolidinyl urea 2, vermiculite powder 12, polyethylene glycol 400 2, white mineral oil 2, heavy calcium carbonate 2, ethylenediaminetetramethylene Sodium bisphosphonate 2, charcoal powder 3, butyl p-hydroxybenzoate 1, ethoxylated alkylphenol ammonium sulfate 0.4, polypropylene 100, compound additive 7;

[0021] Described composite auxiliary agent is made up of the raw material of following weight part:

[0022] Polypropylene 30, polyvinylidene fluoride 20, titanium nitride 2, silicone oil 1, sepiolite powder 30, dithiocyanomethane 0.2, polyacrylate isooctyl 2, ammonium octamolybdate 0.5, 2,6-di Tert-butyl p-cresol 0.4;

[0023] Mix the above-mentioned polypropylene with polyvinylidene fluoride, heat it at 120°C for 30 minutes, add titanium nitride, grind it evenly, add dithiocyanomethane, stir a...

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Abstract

The invention discloses a heavyweight corrugated pipe for concrete. The heavyweight corrugated pipe comprises the following materials in parts by weight: 1-2 parts of calcium acetylacetonate, 0.7-1 part of hexamethylphosphoramide, 1-2 parts of bisimidazolidinyl urea, 10-12 parts of vermiculite powder, 1-2 parts of polyethylene glycol 400, 1-2 parts of white mineral oil, 2-3 parts of heavy calcium carbonate, 1-2 parts of ethylene diamine tetra(methylene phosphonic acid) sodium, 2-3 parts of charcoal powder, 1-2 parts of butyl p-hydroxybenzoate, 0.2-0.4 part of ammonium ethoxylated alkylphenol sulfate, 90-100 parts of polypropylene and 4-7 parts of composite additives. By virtue of the heavy corrugated pipe disclosed by the invention, the defect that the current polyethylene corrugated pipe is easily floated in the concrete construction due to the light weight is improved and the heavy corrugated pipe has the characteristics of good tensile strength and ring stiffness, good tolerance and strong impact resistance.

Description

technical field [0001] The invention mainly relates to the field of pipe materials, in particular to a heavy corrugated pipe for concrete and a preparation method thereof. Background technique [0002] Polypropylene has high crystallinity and regular structure, so it has excellent mechanical properties. The absolute value of the mechanical properties of polypropylene is higher than that of polyethylene, but it is still a relatively low variety in plastic materials, and its tensile strength can only reach 30 MPa or a slightly higher level. Polypropylene with a larger isotactic index has higher tensile strength, but as the isotactic index increases, the impact strength of the material decreases, but it does not change after falling to a certain value. [0003] Temperature and loading rate have a great influence on the toughness of polypropylene. When the temperature is higher than the glass transition temperature, the impact fracture is ductile fracture, and below the gl...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08K13/06C08K3/34C08K5/01C08K3/26C08K5/101C08K5/3445
CPCC08L23/12C08K2201/014C08L2203/18C08L2205/025C08L2205/035
Inventor 强健娜
Owner ANHUI HAINA SICHUAN PLASTICS TECH
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