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HDPE pipe material and preparing method thereof

A kind of pipe, formula technology

Inactive Publication Date: 2016-06-15
LIANSU TECH DEV GUIYANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to inhibit the aging of HDPE, maintain material performance, and prolong service life, the most common and effective method is to add antioxidants to it; antioxidants mainly include amines, phenols, phosphorus-containing and sulfur-containing, etc., in the traditional Among the antioxidants, some antioxidants have poor stability and high toxicity; some antioxidants are easy to migrate and have a short action time. These traditional antioxidants cannot solve the aging problem of HDPE pipes and cannot obtain an antioxidant effect. Good HDPE pipes; therefore, it is still necessary to study an antioxidant with good anti-oxidation effect to prepare HDPE pipes with good anti-oxidation effect, weather resistance and stability and its preparation method

Method used

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  • HDPE pipe material and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] (1) Preparation of hindered phenol quaternary ammonium salt modified montmorillonite: Add 400mL deionized water and 5 parts of montmorillonite to a 500mL three-necked flask equipped with magnetic stirring, condenser and thermometer, and heat in a water bath at 60°C for 4h. Add 5 parts of hindered phenol quaternary ammonium salt dissolved in solvent dropwise, continue to react for 8 hours, filter with suction, wash the filter cake with deionized water, wash with 50% ethanol solution until there is no chloride ion, dry at 100°C, and grind through a 200-mesh sieve spare.

[0037] (2) Application of hindered phenol quaternary ammonium salt modified montmorillonite antioxidant and phosphite antioxidant compound application: raw materials in parts by weight: add 3 parts of the above synthesized hindered phenol quaternary to 96.7 parts of HDPE Ammonium salt modified montmorillonite antioxidant, 1680.3 parts of antioxidant, after extruding 1, 2, 3, 4, 5 times on a twin-screw ex...

Embodiment 2

[0040] The preparation method of this example is the same as that of Example 1, except that in the formula of step (2) of this example, the mass fraction of HDPE is 95.7 parts, and the hindered phenol quaternary ammonium salt modified montmorillonite is 4 parts, Pentaerythritol bisphosphite is 0.3 parts.

Embodiment 3

[0042] The preparation method of this example is the same as that of Example 1, except that, in the formula of step (2) of this example, the mass fraction of HDPE is 97 parts, and the hindered phenol quaternary ammonium salt modified montmorillonite is 3 parts.

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Abstract

The invention relates to an HDPE pipe material and a preparing method thereof. A formula of the HDPE pipe material contains hindered phenol quaternary ammonium salt modified imvite, the mass of which is 1-10% of the total mass of all components of the HDPE pipe material. The invention further provides a preparing method of the HDPE pipe material. The HDPE pipe material has excellent processing stability and thermal resistance stability, durable weather resistance and well color.

Description

technical field [0001] The invention relates to the technical field of plastic pipes, in particular to an HDPE pipe and a preparation method thereof. Background technique [0002] Almost all polymers are accompanied by aging phenomena, and HDPE is no exception. As far as HDPE is concerned, there are inevitably aging weaknesses caused by unsaturated double bonds, branched chains, and terminal groups. During its storage, processing, and use, it is subjected to heat, oxygen, and light. The result is The structure of HDPE changes, and the relative molecular weight decreases or cross-linking occurs, which reduces the performance of the material or even leads to damage. Therefore, the anti-aging performance of HDPE materials is very important. In order to inhibit the aging of HDPE, maintain material performance, and prolong service life, the most common and effective method is to add antioxidants to it; antioxidants mainly include amines, phenols, phosphorus-containing and sulfur...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K9/04C08K3/34C08K5/526C08K5/524B29C47/92B29C48/92
CPCC08K9/04B29C48/92B29C2948/9259B29C2948/92704C08K3/346C08K5/524C08K5/526C08L2201/08C08L2203/18C08L2207/062C08L23/06
Inventor 黄海
Owner LIANSU TECH DEV GUIYANG
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