High-efficiency environmental protection weather-resistant silver-white-black three-layer composite mulch film and preparation method thereof
A high-efficiency, layer-composite technology, applied in the fields of botanical equipment and methods, chemical instruments and methods, layered products, etc., can solve the problems of short service life and difficult recycling of mulch film, and achieve good thermal insulation effect, easy recycling and separation. The effect of picking up and lowering the ground temperature
Active Publication Date: 2021-10-19
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 three-layer composite mulch film with high light efficiency, environmental protection and weather resistance and its preparation method, so as 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, environmental-friendly, and weather-resistant silver-white-black three-layer composite mulch film, which is composed of a silver-gray outer layer, a white middle layer and a black inner layer film.
[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 t...
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Abstract
The present invention relates to the technical field of mulching film production, in particular to a high-efficiency, environment-friendly, weather-resistant silver-white-black three-layer composite mulching film and a preparation method thereof. High-efficiency, environmental protection and weather-resistant silver-white-black three-layer composite mulch film; the composite mulch film prepared by the present invention uses three kinds of linear low-density polyethylene, metallocene linear polyethylene, light stabilizing agent, B225 composite anti-corrosion film with different properties in the raw materials. Oxygen agent and ultraviolet absorber, so that the product has the characteristics of high light efficiency, high heat preservation, strong moisture retention performance, and long service life; after the crops are harvested, the old film also has strong physical and mechanical properties, and the tensile strength decreases less, so that each crop They all need to be mulched into one-time mulching for repeated use; it is very easy to recycle and sort, and has a high reuse value; on the basis of maintaining the effects of mulch film temperature increase, moisture conservation, weeding and fertilizer conservation, it is convenient to recycle resources effectively and reuse them. Use and reduce environmental pollution.
Description
technical field [0001] The invention relates to the technical field of plastic film production, in particular to a high-light-efficiency, environmental-friendly, weather-resistant, silver-white-black three-layer composite plastic film and a preparation method thereof. Background technique [0002] Plastic 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. White ...
Claims
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IPC IPC(8): A01G13/02A01G13/10B32B27/06B32B27/32B32B27/18C08L23/08C08L23/06C08K3/22C08J5/18
Inventor陈金朱冰玉何世刚王智勤陈二虎刘宏军陈龙
Owner甘肃福雨塑业有限责任公司