Environment-friendly, high-strength and weather-resistant yellow and black mulch film and preparation method
A two-color mulch, high-strength technology, applied in botany equipment and methods, chemical instruments and methods, plant protection, etc., can solve the problems of easy aging and rotten mulch, agricultural ecological environment hazards, clean up, etc., to reduce pest viruses and Effects of insect population density, reduced pesticide use, and good tensile properties
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Embodiment 1
[0024] An environment-friendly, high-strength, weather-resistant yellow-black two-color mulch film according to the present invention is a three-layer composite structure produced by a co-extrusion blow molding shed film unit, including an inner layer, a middle layer and an outer layer;
[0025] The three-layer processing scheme of the environment-friendly high-strength weather-resistant yellow-black two-color mulch film is as follows:
[0026]
[0027] The raw materials for the preparation of the inner layer, in parts by weight, mainly include 5-11 parts of low-density polyethylene (LDPE), 80-87 parts of linear low-density polyethylene (LLDPE), 2-5 parts of black masterbatch and longevity 3 to 7 parts of masterbatch;
[0028] The raw materials for the preparation of the middle layer, in parts by weight, mainly include 45-55 parts of metallocene polyethylene (MLLDPE), 38-45 parts of linear low-density polyethylene (LLDPE), 2-5 parts of yellow masterbatch and longevity maste...
Embodiment 2
[0047] An environment-friendly, high-strength, weather-resistant yellow-black two-color mulch film according to the present invention is a two-layer composite structure produced by a co-extrusion blown shed film unit, including an inner layer and an outer layer;
[0048]The two-layer processing scheme of the environment-friendly high-strength weather-resistant yellow-black two-color mulch film is as follows:
[0049]
[0050] The metallocene polyethylene (MLLDPE) can also be selected from 1018FA produced by Exxon, USA.
[0051] The melt index 1.0 linear can be imported or domestic 1001XV, 1801, 118N, 7047, etc.
[0052] A light stabilizer is added to the long-lived masterbatch, and the content of the light stabilizer in the film is 5-6‰. The light stabilizer is selected from Tiangang high-efficiency light stabilizer HS-362, and the amount of the masterbatch should be based on the purchase of the masterbatch. Dose concentration is recalculated.
[0053] It is worth noting ...
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