Anti-aging geogrid and preparation method thereof

Abstract

The invention relates to an anti-aging geogrid prepared by processing the following raw materials in parts by weight: 70-80 parts of HDPE, 20-30 parts of LLDPE, 8-12 parts of EVA, 1-2 parts of 2,2'-thiobis[3-(3,5-ditert-butyl-4-hydroxyphenyl)ethyl propionate], 1-2 parts of antioxidant BHT, 0.1-0.3 part of light stabilizer 744, 4-6 parts of calcium carbonate and 3-5 parts of modified carbon black master batches. The preparation method of the anti-aging geogrid comprises the steps of mixing all the materials in the formula, and extruding to obtain a melt; forming a plate from the melt by using a three-roll calendar; punching the plate by using a punching machine; and stretching after heating the pore plate to obtain the geogrid. The modified geogrid prepared by processing the raw materials is good in anti-aging performance, high in various mechanical properties and low in production and processing costs.

Description

Technical field

[0001] The invention involves the manufacture of geogen grilles and specifically involves an anti -aging geogen grille and preparation method. Background technique

[0002] With the development of the synthetic material industry, more and more geogen grille products have been pushed to the market. The main competition of the geogen grille is product performance and price cost competition.Due to the extensive field and area of polypropylene geomic grilles, it has multiple properties for the requirements for geogen grids.However, it is difficult to achieve only one polymer to achieve these properties. Therefore, the need to modify the grille formula into the industry is an inevitable trend in this industry.Fiber enhancement in preparation of high -performance materials is a common and effective method. The fiber used in enhancement is generally glass fiber and carbon fiber.The enhancement effect obtained from these fibers is obvious, which can make the same specific...

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