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
Active Publication Date: 2019-06-28
甘肃福雨塑业有限责任公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a high-efficiency environmental protection weather-resistant silver-white three-layer composite mulch film and its preparation method to solve the problems that the existing mulch film has a short service life and is not easy to recycle
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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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Abstract
The invention relates to the technical field of production of mulching films, in particular to a high-photosynthetic-efficiency environment-friendly weather-proof silver-white-white three-layer composite mulching film and a preparation method thereof. The high-photosynthetic-efficiency environment-friendly weather-proof silver-white-white three-layer composite mulching film is formed by compounding a silver-gray outer film, a white middle film and a white inner film. The prepared composite mulching film comprises three kinds of linear low-density polyethylene with different properties, metallocene linear polyethylene, light stabilizing auxiliaries, B225-type composite antioxidants and ultraviolet light absorbers, and accordingly, the product has the advantages of high photosynthetic efficiency, high temperature, high soil moisture conservation performance, long service life and the like; after crop harvesting, old films still have high physical and mechanical properties, the tensile strength is slightly reduced, and the mulching films can be reused instead of replacement for each batch; the composite mulching film is quite easy to recycle and sort, and has high reutilization value;on the basis of ensuring heat insulation, soil moisture conservation, weeding and fertilizer efficiency conservation, effective reutilization of recycled resources is facilitated, and environmental pollution is reduced.
Description
technical field [0001] The invention relates to the technical field of mulching film production, in particular to a silver-white three-layer composite mulching film with high light efficiency, environmental protection and weather resistance and a preparation method thereof. Background technique [0002] Mulch film can not only improve ground temperature, water conservation, soil conservation, fertilizer conservation and fertilizer efficiency, but also kill weeds, prevent pests and diseases, prevent drought and waterlogging, suppress salt and protect seedlings, and improve near-surface light and heat conditions. For my country's three north regions, low temperature Factors that restrict agricultural development, such as low rainfall, drought and poor ridges, and short frost-free periods, have strong pertinence and applicability. [0003] Common mulch films include: white mulch film, black mulch film, silver-gray two-color film, black and white double-sided mulch film, etc. Wh...
Claims
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IPC IPC(8): A01G13/02B32B27/32B32B27/08C08L23/08C08L23/06C08J5/18B29D7/01
Inventor 朱冰玉何世刚陈金王智勤陈龙陈二虎刘宏军
Owner 甘肃福雨塑业有限责任公司
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