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A joint injection molding type polypropylene geogrid and a preparation method thereof

A technology of geogrid and polypropylene, applied in soil protection, other household appliances, infrastructure engineering, etc., can solve the problems of unsatisfactory grid tension effect, maximum 50k, strip performance damage, etc. Achieve the effect of high overall tensile strength, high strength and good forming ability

Pending Publication Date: 2019-04-09
武向晖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the existing polypropylene geogrids on the market are one-time stretch-formed geogrids and ultrasonic welded geogrids. For the one-time stretch-formed polypropylene geogrids, the maximum tensile strength can only be 50kN , cannot meet the current market and engineering requirements. For polypropylene welded geogrids, due to ultrasonic welding at the joints, the performance of the strips is seriously damaged due to factors such as heat melting during the welding process, and the actual tensile effect of the grids is not ideal.

Method used

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  • A joint injection molding type polypropylene geogrid and a preparation method thereof
  • A joint injection molding type polypropylene geogrid and a preparation method thereof
  • A joint injection molding type polypropylene geogrid and a preparation method thereof

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] Such as Figure 1-3 As shown, a connection point injection-molded polypropylene geogrid includes a transverse strip 1 and a longitudinal strip 2, and the transverse strip 1 and the longitudinal strip 2 are polypropylene strips, and cross to form a grid , the position where the transverse strip and the longitudinal strip intersect forms a node, and the node is provided with an integrally injection-molded polyethylene reinforcing block 3, and the node is located at the center of the reinforcing block 3, and the reinforcing block The left and right sides of the part located at the top of the node are provided with an upslope surface 4 with a slope of 30-50°, and the front and rea...

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Abstract

The invention discloses a joint injection molding type polypropylene geogrid and a preparation method thereof. The geogrid comprises transverse strips and longitudinal strips. The transverse strips and the longitudinal strips are polypropylene strips, wherein the transverse strips and the longitudinal strips intersect to form a grid shape, joints are formed at the intersecting positions of the transverse strips and the longitudinal strips, polyethylene reinforcing blocks which are integrally formed in an injection molding mode are arranged at the joints, the joints are located in the centers of the reinforcing blocks; and the left sides and the right sides of the portions, located at the top ends of the joints, of the reinforcing blocks are provided with upslopes of 30-50 degrees and the front sides and the rear sides are planes, and the front sides and the rear sides of the portions, located at the bottom ends of the joints, of the reinforcing blocks are provided with downslopes of 30-50 degrees, and the left sides and the right sides are planes. The geogrid has the advantages that the tensile strength of a body is high, the stripping force at the joints is large, and the corrosion resistance is good.

Description

technical field [0001] The invention relates to the technical field of geogrids, in particular to an injection-molded polypropylene geogrid with connecting nodes and a preparation method thereof. Background technique [0002] At present, most of the existing polypropylene geogrids on the market are one-time stretch-formed geogrids and ultrasonic welded geogrids. For the one-time stretch-formed polypropylene geogrids, the maximum tensile strength can only be 50kN , cannot meet the current market and engineering requirements. For polypropylene welded geogrids, because the joints are ultrasonically welded, due to factors such as thermal melting during the welding process, the performance of the strips is seriously damaged, and the actual tension effect of the grids is not ideal. Contents of the invention [0003] The object of the present invention is to provide a joint injection-molded polypropylene geogrid and a preparation method thereof for the disadvantage of low tensile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D3/00B29D28/00
CPCE02D3/005B29D28/00
Inventor 武向晖
Owner 武向晖
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