Polyester (PET) plastic geogrid and manufacturing method thereof

A geogrid, polyester technology, applied in soil protection, infrastructure engineering, construction, etc., can solve the problems of unsatisfactory physical and chemical properties, material utilization rate of only 75%, and increase production costs, and achieve anti-corrosion resistance. Good chemical stability, good dimensional stability and energy saving effect

Active Publication Date: 2012-07-04
TAIAN ROAD ENG MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the above-mentioned plastic tensile grids must be rolled in a formed sheet and then punched in a continuous array, so that the material cut by punching can reach as much as 25% of the sheet, so the utilization rate of the material is only 75%, which is not only wasteful materials, but also increased the production cost of the product
[0007] At present, the materials used in plastic tensile grids in the market are limited to polypropylene (PP) and polyethylene (PE). The physical and chemical properties of these two materials cannot meet the needs of the country's "hundred-year plan" key projects.

Method used

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  • Polyester (PET) plastic geogrid and manufacturing method thereof
  • Polyester (PET) plastic geogrid and manufacturing method thereof
  • Polyester (PET) plastic geogrid and manufacturing method thereof

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Embodiment Construction

[0038] The invention is described in detail below with specific embodiments:

[0039] A kind of polyester (PET) plastic geogrid, the local geogrid material is polyester plastic material, this polyester (PET) plastic geogrid can be made by the following method, its process flow chart is as follows Figure 4 , the device connection diagram is as follows Figure 5 Shown:

[0040] After mixing and adding, the mixture is extruded through extruder 1, and then enters water tank 3 to cool and shape after passing through the forming head, and then stretched through traction device 2, preheating device 4, 5 and stretching machine 6, and then counted and wound 7 and 8 form a one-way geogrid, and then after the preheating machine 9 and the transverse stretching oven 10 are drawn, counting and winding 11 form a two-way geogrid.

[0041] The implementation mode is described in detail below:

[0042] a. Heat and knead polyester (PET) plastic particles with an extruder, extrude longitudina...

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Abstract

The invention discloses a manufacturing method of a geogrid through a polyester (PET) plastic. The method is characterized in that polyester (PET) plastic granules are heated and mixed through an extruder; middle mesh plates with regular hole arrays are directly extruded through a forming machine; and the middle mesh plates are longitudinally and laterally stretched to form the geogrid.

Description

technical field [0001] The invention relates to a polyester (PET) plastic geogrid and a manufacturing method thereof. Background technique [0002] At present, there are many kinds of soil reinforcement or reinforcement materials used in civil engineering in China, and their performance characteristics and adaptability to the environment are different. Conventional materials can be divided into three main categories: [0003] 1. Warp knitted fabrics: such as polyester fibers or glass fibers are woven into a rectangular grid structure, and then coated with organic protective coatings on the surface and dried to shape. Although this product has high tensile strength, its node strength is low, it is easy to slip, and it is easy to cause deformation of the rectangular grid structure and poor stability. [0004] 2. Adhesive welding: such as polyester tensile tape adhesive-welded grid, polypropylene tensile belt adhesive-welded grid, steel-plastic composite material grid, etc., ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/02B29C47/00B29C55/12E02D3/00
Inventor 陆诗德梁训美王继法
Owner TAIAN ROAD ENG MATERIALS
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