Carbon-plastic composite modified geogrid and preparation method thereof

Abstract

The invention relates to a carbon-plastic composite modified geogrid. The geogrid is obtained by processing the following raw materials in parts by weight: 80-90 parts of high-density polyethylene, 10-20 parts of PVC (polyvinyl chloride) resin, 5-10 parts of carbon fibers, 0.1-0.2 part of antioxidant B215, 0.1-0.2 part of phosphotriester, 0.2-0.4 part of zinc stearate, 0.1-0.3 part of absorbent UV-531, 8-12 parts of carbon black and 3-5 parts of modified carbon black masterbatch. The geogrid is prepared by mixing and extruding the materials in a formula, forming a plate with a melt by using a three-roll calendar, punching the plate by using a punching machine and drawing the pore plate after heating the pore plate. The processed modified geogrid has high strength, strong corrosion resistance and good mechanical properties and is low in production and processing costs.

Description

[0001] technical field [0002] The invention relates to the manufacture of geogrids, in particular to a carbon-plastic composite modified geogrid and a preparation method thereof. Background technique [0003] With the development of the geosynthetics industry, more and more geogrid products have been introduced to the market. The main competition of geogrids is product performance and price and cost competition. Due to the wide range of fields and application areas of polypropylene geogrids, geogrids are required to have various properties. However, it is difficult to achieve these properties with only one polymer, so it is an inevitable trend in this industry to modify the geogrid formulation. Fiber reinforcement is a common and effective method in the preparation of high-performance materials, and the fibers used for reinforcement are generally glass fibers, carbon fibers, etc. The resin reinforcement effect obtained by filling these fibers is obvious, which can m...

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Problems solved by technology

However, after using glass fiber and carbon fiber, the tensile elongation of the polymer will be greatly reduced, resulting in a very short stretch of the geogrid, and an increase in the weight per unit area of ​​the product, which will increase the production cost instead, which is not conducive to achieving low cost. the goal of

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