High-photosynthetic-efficiency environment-friendly weather-proof silver-white-white three-layer composite mulching film and preparation method thereof
A high-efficiency, layer-composite technology, applied in chemical instruments and methods, layered products, flat products, etc., can solve the problems of difficult recycling and short service life of mulch film, achieve easy recycling and sorting, prolong service life, reduce The effect of small temperature differences
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[0040] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0041] Such as figure 1 Shown is a high-efficiency, environment-friendly, weather-resistant silver-white three-layer composite mulch film, which is composed of a silver-gray outer layer, a white middle layer and a white inner layer.
[0042] The silver-gray outer layer is prepared from the following raw materials in mass percentage: 7042 type linear low density polyethylene 20-35%, 7042N type linear low density polyethylene 20-35%, 0209AA type linear low density polyethylene 25-35% , NX9999SS metallocene linear polyethylene 5-15%, low-density polyethylene 5-10%, high-density polyethylene 5-10%, silver-gray masterbatch 3-10%, pesticide-resistant light stabilizer 0.6-1.2% , B225 compound antioxidant 0.1-0.2%, ultraviolet absorber 0.15-0.3%;
[0043] The white middle layer is prepared from the following raw materials in mass percentage: 7042 type linear low de...
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