Environment-friendly mulching film and preparation method thereof

A mulching film and environmental protection technology, applied in the direction of plant protection cover, etc., can solve the problems of soil and environmental damage, difficulty in recycling, and difficult degradation of mulch film, and achieve the effect of increasing aggregate structure and air permeability, and avoiding white pollution.

Inactive Publication Date: 2015-12-30
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented new type material for environmental protection has several advantages over older types like polyethene films: it can replace old ones without causing harm; it prevents damage from rainwater during construction while still providing good insulation against humidity (humidification) caused by rainfalls). It does this through incorporating into these resin structures special chemical compounds which make them more durable than regular PE films. Overall, this innovative technology makes disposal easier and less damaging waste after use compared with previous methods.

Problems solved by technology

The technical problem addressed by these inventions relates to improving crop growth while reducing environmental impacts caused by synthetic materials like polyethyleneglycol or other chemical compounds that can be harmful for plants' roots when applied over large areas on crops during growing cycles.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1 Moisture retention test of plastic film

[0016] Take 3 parts of sand and weigh them separately. Sample No. 1 is a blank test site. Mix 5 parts by weight of polyvinyl acetate and 95 parts by weight of water to make pulp evenly, respectively according to 1kg / m 2 and 1.5kg / m 2 Spray on the surface of No. 2 and No. 3 sandy soil, and form a plastic film after the surface of No. 2 and No. 3 samples is solidified, and spray the same amount of water on the 3 samples. Then place the sample in sunny weather with high temperature to dry naturally, weigh every 1 hour, and calculate the evaporation of the sample.

[0017] Take 3 parts of sand and weigh them separately. Sample No. 1 is a blank test site. Mix 9 parts by weight of polyvinyl alcohol with 91 parts by weight of water to make pulp evenly, respectively according to 1kg / m 2 and 1.5kg / m 2 Spray on the surface of No. 2 and No. 3 sandy soil, and form a plastic film after the surface of No. 2 and No. 3 samples...

Embodiment 2

[0020] Embodiment 2 insulation test

[0021] Draw 3 blocks of 10m in a certain outdoor plot 2 The first piece of land was used as a blank test. On the second piece of land, use 15 parts of vinyl acetate-ethylene emulsion and 85 parts of water to uniformly mix the emulsion according to 1.5kg / m 2 Spray evenly on the surface of the land to cure the conjunctiva. On the third piece of land, use 15 parts of vinyl acetate-ethylene emulsion and 85 parts of water to uniformly mix the emulsion according to 3kg / m 2 Spray evenly on the surface of the land to solidify and dry the conjunctiva. The thermometers were inserted 10cm below the surface of the three lands, and the temperature of the three soils was recorded at the same time every hour; the test results showed that the temperature of the soil sprayed with the emulsion was 1-2°C higher than that of the soil without the emulsion, indicating that the obtained The mulch film is conducive to the maintenance of soil temperature and...

Embodiment 3

[0023] Embodiment 3 replaces traditional plastic mulch test

[0024] Mark the same three equal parts on the land, fertilize and water earlier in the sowing season, then sow corn on demand, and finally cover the soil. The first part of the land is used as a blank test at this point. On the second part of the land, 6 parts of polyvinyl acetate emulsion and Mix 94 parts of water evenly, according to 2kg / m 2 The dosage is sprayed on the soil surface, and the third piece of land is covered with general agricultural plastic mulch. Three points of land respectively insert the thermometer 10cm below the surface. According to the management of traditional agricultural planting methods, the soil temperature is measured regularly, and the emergence rate of corn is recorded. According to the test, the emergence rate of maize in experimental site 1 was 80%, that in experimental site 2 was 99%, and that in experimental site 3 was 98%.

[0025] The above-mentioned same effect can be ach...

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PUM

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Abstract

The invention discloses an environment-friendly mulching film prepared from, by weight, 2-15 parts of polyvinyl acetate or polyvinyl alcohol or vinyl acetate and 85-98 parts of water. The environment-friendly mulching film replaces a traditional plastic mulching film which is difficult to degrade and recycle, can also achieve the moisture and heat preservation effect on soil, and avoids plastic pollution. In addition, after solidification layers remaining on the surface of sandy soil and soil enter sandy soil and soil, the granular structure and the breathability can be improved, and sandy soil and soil improvement and plant growth are facilitated.

Description

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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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Application Information

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Owner CHINA PETROCHEMICAL CORP
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