PET (Polyethylene Terephthalate) hollow foaming tubular product and manufacturing method thereof

A manufacturing method and technology of foamed tubes, applied in the direction of hoses, tubes, rigid tubes, etc., to achieve high crystallinity, improve surface brightness and weather resistance, and long-term storage effect

Inactive Publication Date: 2013-01-23
JIANGSU BAIANJU PLASTIC PIPE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a PET hollow foaming pipe that uses PET saturated polyester to extrude a hollow foaming structure, and effectively solve the aging resistance, strength, toughness, and durability of plastic drainage pipes. High and low temperature, chemical resistance, drainage noise and other issues, with the advantages of sanitation, environmental protection, pressure resistance, safety, light weight, and high cost performance

Method used

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  • PET (Polyethylene Terephthalate) hollow foaming tubular product and manufacturing method thereof
  • PET (Polyethylene Terephthalate) hollow foaming tubular product and manufacturing method thereof
  • PET (Polyethylene Terephthalate) hollow foaming tubular product and manufacturing method thereof

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Embodiment 1

[0022] According to the structural schematic diagram of the double-layer co-extruded composite structure, the PET outer layer formula is: 100 parts of polyethylene terephthalate (PET), 10 parts of active nano light calcium carbonate, 1.5 parts of polyethylene glycol glycidyl ether, 2 parts of masterbatch, PET hollow foam layer formula: 100 parts of polyethylene terephthalate (PET), 20 parts of active nano light calcium carbonate, 2.4 parts of polyethylene glycol glycidyl ether, 4 parts of color masterbatch 1.8 parts, 1.8 parts of azole complex foaming agent masterbatch, produce sample tube by the above-mentioned manufacturing method. After the test of the sample pipe, the tensile yield strength is 95MPa, the elastic modulus is 4380MPa, the heat distortion temperature (0.46Mpa) is 195-210°C, and the heat distortion temperature (1.8Mpa) is 190-200°C. The drainage noise of the system is 32dB, the 2000h weather resistance test performance maintains 99%, the color does not change, ...

Embodiment 2

[0024] According to the structural schematic diagram of the double-layer co-extruded composite structure, the PET outer layer formula is: 100 parts of polyethylene terephthalate (PET), 30 parts of active nano light calcium carbonate, 1.8 parts of polyethylene glycol glycidyl ether, 3 parts of color masterbatch, PET hollow foam layer formula: 100 parts of polyethylene terephthalate (PET), 8 parts of active nano light calcium carbonate, 1.8 parts of polyethylene glycol glycidyl ether, 3 parts of color masterbatch 1.2 parts, 1.2 parts of azole compound foaming agent masterbatch, produce sample tube by the above-mentioned manufacturing method. After testing the sample pipe, the tensile yield strength is 96.2MPa, the elastic modulus is 4680MPa, the heat distortion temperature (0.46Mpa) is 195-210°C, the heat distortion temperature (1.8Mpa) is 190-200°C, 4L water, 5m high The drainage noise of the system is 32dB, the performance of the 2000h weather resistance test is maintained at ...

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Abstract

The invention discloses a PET (Polyethylene Terephthalate) hollow foaming tubular product and a manufacturing method thereof, belonging to the field of a plastic water discharging pipeline. The PET hollow foaming tubular product is formed by a PET outer layer and a PET hollow foaming layer combined with an inner wall of the PET outer layer, wherein the PET outer layer is formed by the following components in parts by weight: 100 parts of polyethylene terephthalate, 10-30 parts of active nano light calcium carbonate, 1.5-1.8 parts of polyethylene glycol diglycidyl ether and 2-3 parts of color master batch; and the PET hollow foaming layer is formed by the following components in parts by weight: 100 parts of the polyethylene terephthalate, 8-20 parts of the active nano light calcium carbonate, 1.8-2.4 parts of the polyethylene glycol diglycidyl ether, 3-4 parts of the color master batch and 1.2-1.8 parts of imidazole compound foaming agent master batch. The tubular product disclosed by the invention has the good performances of light weight, corrosion resistance, scale prevention, wear resistance, good flexibility, high impact strength, good air tightness, recyclability, convenience and rapidness for installation, energy saving, sanitation, environmental friendliness and the like; and meanwhile, the tubular product has the advantages of good anti-ageing and weather-resisting performance, good noise reduction effect and the like.

Description

technical field [0001] The invention relates to a PET hollow foamed pipe and a manufacturing method thereof. It belongs to the technical field of plastic drainage pipes. The main application fields are: building drainage engineering, rainwater recycling engineering, etc. Background technique [0002] At present, the drainage pipes mainly use polyvinyl chloride pipes and polyethylene pipes. The two pipes have the same defects in use. The pipes have poor aging resistance and weather resistance, and the noise is relatively large during drainage, causing certain troubles to the lives of users. Some enterprises use structural walls to improve the drainage noise of polyvinyl chloride pipes, which have certain performance defects and require technological innovation. With the development of science and technology and the improvement of people's living standards, "health" and "safety" have become the two most critical issues for modern people. Therefore, the development of high-p...

Claims

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Application Information

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IPC IPC(8): F16L9/18F16L11/20C08L67/02C08K3/26C08J3/22C08J9/04B29C47/92B29C48/92
CPCB29C48/21B29C48/11B29C48/875B29C48/92B29C2948/92704B29C2948/92895B29C2948/92923
Inventor 程全山
Owner JIANGSU BAIANJU PLASTIC PIPE IND CO LTD
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