High-strength mulching film easy to recycle and preparation method thereof

A technology that is easy to recycle and mulch, applied in botany equipment and methods, horticulture, plant protection covers, etc., can solve problems such as soil pollution, soil hazards, poisoning, etc., to improve mechanical properties, reduce secondary pollution, and realize The effect of recycling

Pending Publication Date: 2022-06-24
SHANDONG QINGTIAN PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polypropylene material used in this patent is a non-degradable material. Because it does not contain foreign elements such as O and N, microorganisms cannot decompose it, and it is easy to produce microplastics in the soil, which is more harmful to the soil. This patent belongs to destructive Non-toxic biodegradable mulch film; the plasticizer used in this patent will cause soil pollution. After the harmful components are absorbed and accumulated by crops, they enter the human body through the food chain and accumulate in the human body, which is very likely to poison people

Method used

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  • High-strength mulching film easy to recycle and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The production width is 1.2 meters and the thickness is 0.012um. The high-strength and easy-to-recycle mulch film is made of the following components by weight: linear low-density polyethylene 55%, metallocene polyethylene 25%, anti-aging masterbatch for mulch film 10%, Reinforcing and toughening masterbatch 10%;

[0048] The anti-aging masterbatch for mulching film is made of the following components by weight: 92% of low density high pressure polyethylene, 2% of light stabilizer, 1% of antioxidant, 1% of ultraviolet absorber, 2% of dispersant, Lubricant 2%.

[0049] The said strengthening and toughening masterbatch is made of the following components by weight: 20% of PBAT, 15% of toughening compatibilizer, 60% of modified calcium sulfate whiskers, 2% of dispersant, 1% of lubricant, Oxygen 2%.

[0050] The preparation process of the modified calcium sulfate crystal whisker is as follows: after the titanate coupling agent (NDZ-201) is diluted with an acetone solution...

Embodiment 2

[0056] The production width is 1.2 meters and the thickness is 0.012um. The high-strength and easy-to-recycle mulch film is made of the following components by weight: linear low-density polyethylene 60%, metallocene polyethylene 20%, anti-aging masterbatch for mulch film 8%, Reinforcing and toughening masterbatch: 12%;

[0057] The anti-aging masterbatch for mulching film is made of the following components by weight: 90% of low density high pressure polyethylene, 4% of light stabilizer, 2% of antioxidant, 1.5% of ultraviolet absorber, 1.5% of dispersant, Lubricant 1%.

[0058] The reinforcing and toughening masterbatch is made of the following components by weight: 22% of PBAT, 13% of toughening compatibilizer, 60% of modified calcium sulfate whiskers, 1% of dispersant, 2% of lubricant, Oxygen 2%.

[0059] The preparation method of the described high-strength and easy-to-recover mulch film is the same as that in Example 1.

Embodiment 3

[0061] The high-strength and easy-to-recycle mulch film with a width of 1.2 meters and a thickness of 0.012um is produced. It is made of the following components by weight: 50% of linear low-density polyethylene, 28% of metallocene polyethylene, 9% of anti-aging masterbatch for mulch film, Reinforcing and toughening masterbatch: 13%;

[0062] The anti-aging masterbatch for mulching film is made of the following components by weight percentage: 88% of low-density high pressure polyethylene, 4% of light stabilizer, 4% of antioxidant, 1% of ultraviolet absorber, 1% of dispersant, Lubricant 2%.

[0063] The reinforcing and toughening masterbatch is made of the following components by weight percentage: PBAT 18%, toughening compatibilizer 17%, modified calcium sulfate whisker 57%, dispersant 3%, lubricant 2%, anti- Oxygen 3%.

[0064] The preparation method of the described high-strength and easy-to-recover mulch film is the same as that in Example 1.

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Abstract

The invention belongs to the technical field of agricultural mulching film preparation, and particularly relates to a high-strength mulching film easy to recycle and a preparation method thereof. The high-strength and easy-to-recycle mulching film is prepared from the following components in percentage by weight: 50-60% of linear low-density polyethylene, 20-30% of metallocene polyethylene, 8-12% of special anti-aging master batch for mulching film and 10-15% of reinforcing and toughening master batch, the reinforcing and toughening master batch is prepared from the following components in percentage by weight: 18-22% of PBAT, 13-17% of a toughening compatilizer, 55-65% of modified calcium sulfate whiskers, 1-3% of a dispersing agent, 1-2% of a lubricating agent and 1-3% of an antioxidant. The high-strength mulch film easy to recover has the water retention and soil moisture conservation of a common polyethylene mulch film, also has high strength and high toughness, and is green, environment-friendly, efficient and easy to recover.

Description

technical field [0001] The invention belongs to the technical field of agricultural mulch film preparation, in particular to a high-strength and easy-to-recover mulch film and a preparation method thereof. Background technique [0002] The area of ​​farmland covered by plastic film in my country has exceeded 13 million hectares, accounting for about 1 / 9 of the country's arable land. Due to the use of agricultural plastic film, the temperature and humidity of the soil are effectively controlled, the loss of water and nutrients is reduced, and the high and stable yield of crops is promoted, thereby increasing the benefits of agricultural production. But at the same time, due to the low strength and poor weather resistance of ordinary plastic film, it is impossible or difficult to recycle after use, and a large amount of residual film remains in the soil every year. Most of these residual mulch films are made of polyethylene raw materials, which do not have any degradation pro...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08L67/02C08K9/04C08K7/08C08K5/1515C08K5/134C08K5/526C08K5/3492C08K5/3435C08K5/132C08J5/18C08J3/22A01G13/02
CPCC08J5/18C08J3/226A01G13/0275C08J2323/08C08J2423/06C08J2467/02C08K9/04C08K7/08C08K5/1515C08K5/1345C08K5/526C08K5/3492C08K5/3435C08K5/132
Inventor 尹君华徐静国先峰王先政王坤武立波白洁王美香
Owner SHANDONG QINGTIAN PLASTIC IND
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