Medium conveying pipe and application thereof
By designing a multi-layer structure of the medium conveyor pipe, using the multi-layer structure of polyolefin and polyamide composition, combined with the addition of a multi-functional coupling agent, the problems of poor low-temperature fatigue resistance and easy aging of the existing medium conveyor pipe in low-temperature and high-pressure environments are solved, and higher low-temperature fatigue resistance and corrosion-resistant aging performance are achieved.
CN119704787APending Publication Date: 2025-03-28WANHUA CHEM GRP CO LTD
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Patent Information
- Application Number
- CN202411996646.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
The existing medium conveying pipes have problems such as weight, easy aging, poor low-temperature fatigue resistance, and easy cracking in low-temperature environments.
Method used
A multi-layer structure of the medium conveyor tube is designed, wherein the inner layer structure is made of a polyolefin composition, the outer layer structure is made of a polyamide composition, and a multifunctional coupling agent is added to the outer layer structure to improve the mechanical properties and heat resistance of the polyamide.
Benefits of technology
It improves the low-temperature fatigue resistance, elongation of break and corrosion-resistant aging performance of the medium conveyor pipe, reduces weight and aging risks, and avoids cracking.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention relates to the technical field of medium conveying, in particular to a medium conveying pipe and application thereof, and aims to solve the technical problems that a medium conveying pipe in the prior art is heavy, easy to age, poor in low-temperature fatigue resistance during long-term use, easy to crack and the like. The medium conveying pipe comprises an inner layer structure, a connecting layer and an outer layer structure. The inner layer structure is made of a polyolefin composition, the mass ratio of a xylene soluble substance in the polyolefin composition is 8%-40%, and the xylene soluble substance comprises first polyolefin; the outer layer structure is made of polyamide and a polyfunctionality coupling agent, the mole number of terminal carboxyl groups in the polyamide is larger than or equal to that of amino groups, the polyfunctionality coupling agent comprises an amido bond and a first functional group, and the first functional group comprises at least one of hydroxyl, amino, epoxy groups and ester groups.
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