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Process for producing polyester geotextile with raw material of PET bottle flakes

A technology for geotextiles and bottle flakes, applied in non-woven fabrics, melt spinning, textiles and papermaking, etc., can solve the problem of high cost and achieve the effects of cost reduction, environmental protection and high social benefits

Inactive Publication Date: 2010-06-09
梁本树
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical properties of the polyester geotextile produced by this method are increased, but because the polyester slice is used as the raw material, the cost is high

Method used

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Examples

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the examples, but not as a limitation of the present invention.

[0029] The overall process of the present embodiment comprises the following process steps:

[0030] The process of producing polyester geotextiles from PET bottle flakes includes the following process steps:

[0031] a. Dry the recovered PET bottle flakes;

[0032] b. Oligomer viscosity increase;

[0033] c. Granulation;

[0034] d. Screening, crystallization and drying of PET particles;

[0035] e. Melt extrusion spinning;

[0036] f. Cooling and drawing;

[0037] g, laying wire laying net;

[0038] h. Acupuncture reinforcement;

[0039] i, into rolls.

[0040] Concrete processing step and processing method in the present embodiment are:

[0041] In step a, the water content of the screened PET bottle flakes is controlled at 1-3% by drying equipment.

[0042] In step b, oligomer thickening involves adding the screened an...

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Abstract

The invention relates to a process for producing polyester geotextile with the raw material of PET bottle flakes, belonging to the process for producing the building material. The process for producing the polyester geotextile with the raw material of PET bottle flakes comprises the following steps: drying the recovered PET bottle flakes; tackifing the PET bottle flakes with oligomer; granulating the PET bottle flakes into PET bottle flake granules; screening the PET bottle flake granules; crystallizing and drying the PET bottle flake granules screened out; melting, extruding and spinning the PET bottle flake granules; cooling and stretching the spun filament; swaying and lapping the spun filament; embroidering the spun filament with a needle and strengthening the embroidery; and rolling the embroidery. The invention solves the problems of the high production cost of the product of polyester geotextile and has the advantages of low production cost and obvious social benefit.

Description

Technical field [0001] The invention belongs to the production process of building materials, in particular to a process for producing polyester geotextiles with PET bottle flakes as raw materials. Background technique [0002] Polyester geotextiles are widely used in construction projects in various countries, and the development and application history of geotextiles are closely related. Since the birth of geotextiles, it has been valued by the engineering construction fields of various countries. But it has been used for less than a hundred years, and it was only used in engineering in batches in the late 1930s. In the early 1950s, the United States produced woven geotextiles and used them in the renovation project of the Florida coastal concrete revetment to replace the conventional sand and gravel filter layer. Due to the vigorous rise of the chemical fiber industry in the 1950s and 1960s, the emergence of a large number of polyester fibers, polypropylene fibers and p...

Claims

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Application Information

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IPC IPC(8): D04H3/10D01D5/10D04H3/105
Inventor 梁本树
Owner 梁本树
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