Water-collecting degradable mulching film and preparation method thereof

A technology for degrading plastic film and water collection, applied in the fields of botanical equipment and methods, plant protection, application, etc., can solve the problems of poor moisture retention of the degradable plastic film, unsuitable for application in arid and semi-arid areas, etc., to achieve cheap raw materials, improve use efficiency and The effect of stability and simple preparation process
CN110628187AActive Publication Date: 2019-12-31TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Publication Date
2019-12-31

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Abstract

The invention discloses a water-collecting degradable mulching film, which comprises the following raw materials by weight: 100 parts of a degradable polymer, 0.5-3.5 parts of a hydrophobic agent, 2-5parts of a water-collecting agent and 0.5-2 parts of a tear-resistant agent. The mulching film contains the water-collecting agent and the hydrophobic agent simultaneously, the surface of the water-collecting agent is super-hydrophilic, can adsorb mist in the air and convert the mist into small liquid drops, and meanwhile, under the cooperation of the hydrophobic agent, the liquid drops cannot spread and stay at positions except the water-collecting agent, only can continuously enlarge in a spherical shape around the water-collecting agent, and then roll into soil under the action of gravity,thus realizing soil irrigation. Meanwhile, the water-collecting degradable mulching film provided by the invention has the characteristics of cheap raw materials and simple preparation process, and has great application value.
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Description

technical field

[0001] The invention relates to the technical field of biodegradable plastic film. More specifically, it relates to a water-collecting and degradable mulch film and a preparation method thereof. Background technique

[0002] Mulch film is widely used in my country's agricultural production. It has the functions of increasing temperature and keeping moisture, resisting drought and saving water, improving fertility, and suppressing weeds. It has become an important support for increasing agricultural production in our country. However, the traditional plastic film cannot be degraded, and it is easy to remain in the soil to cause "white pollution". The promotion of degradable mulch film is an important new trend to solve the problem of mulch film residue. It not only gives full play to the covering effect of mulch film, but also degrades itself, which can be described as the best of both worlds. In my country, bounded by Daxing'an Mountains-Yinshan Mountain-He...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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