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A special oxidation-resistant long-lasting mulch film for sugarcane

A technology of oxidation resistance and plastic film, which is applied in the direction of plant protection cover, etc., can solve the problems of high cost and short growth cycle

Inactive Publication Date: 2016-02-10
云南中蔗农业科技有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the high cost and the short growth cycle of general commercial crops, long-lived mulches for ground covering are not very common

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1. Raw material preparation:

[0015] Add 25kg of polyethylene (LLDPE7042) particles into the screw mixer, add 5ml of liquid paraffin for slight wetting, then add 37.5g of antioxidant 1010, 37.5g of ultraviolet absorber UV-326, 25g of hindered amine GW-770, and All granules and powders are mixed.

[0016] 2. Film production

[0017] Use Shandong Laiwu Luguan Plastic Machinery Co., Ltd. SJ-50 film blowing unit, first heat the film unit, the preheating time is 1.5 hours, when the heating temperature is lower than 180°C: the temperature in the first heating zone is adjusted to 160°C, and the temperature in the second zone is adjusted. 165°C, 170°C in the third zone, 175°C in the connecting body, and 170°C in the head. During the warm-up period, fully debug the upper traction, lower traction and coiling equipment of the unit to the normal working state, and the air supply debugging of the air pump is normal. After preheating, put the fully mixed raw materials into the ho...

Embodiment 2

[0019] 1. Raw material preparation:

[0020] Add 25kg of polyethylene (LLDPE7042) particles into the screw mixer, add 5ml of liquid paraffin for slight moistening, then add 37.5g of antioxidant 1076, 37.5g of ultraviolet absorber UV-531, 37.5g of hindered amine GW-622, Mix all granules and powders.

[0021] 2. Film production

[0022] Use Shandong Laiwu Luguan Plastic Machinery Co., Ltd. SJ-60 film blowing unit, first heat the film unit, preheating time is 2 hours, when the heating temperature is lower than 180°C: the temperature in the first heating zone is adjusted to 160°C, and the temperature in the second zone is adjusted. 165°C, 175°C in the third zone, 170°C in the first zone of the nose, and 170°C in the second zone of the nose. During the warm-up period, fully debug whether the upper traction, lower traction, and coiling equipment of the unit are normal, and the air supply debugging of the air pump is normal. After preheating, put the fully mixed raw materials into...

Embodiment 3

[0024] 1. Raw material preparation:

[0025] Add 25kg of polyethylene (LLDPE7042) granules to the screw mixer, add 5ml of refined vegetable oil for slight moistening, then add 12.5g of antioxidant 1076, 12.5g of antioxidant 168, 25g of ultraviolet absorber UV-531, 37.5g Hindered Amine GW-944, mix all granules and powders.

[0026] 2. Film production

[0027] Use Shandong Laiwu Luguan Plastic Machinery Co., Ltd. SJ-75 film blowing unit, first heat the film unit, the preheating time is 2.5 hours, when the heating temperature is lower than 180°C: the temperature in the first heating zone is adjusted to 155°C, and the temperature in the second zone is adjusted. 160°C, 175°C in the third zone, 170°C in the first zone of the nose, and 175°C in the second zone of the nose. During the warm-up period, fully debug whether the upper traction, lower traction, and coiling equipment of the unit are normal, and the air supply debugging of the air pump is normal. After preheating, put the ...

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Abstract

The invention provides an oxidation resistant long-acting mulch film for sugar cane. The film is prepared from the following raw materials by weight percent: 95-99 percent of LLDPE (Linear Load Density Polyethylene) 7042, 0.1-2 percent of antioxidant, 0.01-1 percent of ultraviolet absorbent, 0.05-5 percent of hindered amine light stabilizer and 0.01-0.05 percent of liquid paraffin or vegetable oil; as such additives as the antioxidant, the ultraviolet absorbent and the hindered amine light stabilizer are added in the blown film raw materials of the mulch film, free radicals in the mulch film can be effectively reduced and the overquick oxidation and degradation of the mulch film is restrained, and the oxidation resistance of the produced mulch film is coordinated and exerted jointly by the antioxidant, the ultraviolet absorbent and the hindered amine light stabilizer. The heating temperature during production synthesis of the mulch film is lower than 180 DEG C to prevent the pyrolysis of antioxidant components, and the thickness of the mulch film guarantees the smooth film breaking for seedling emergence of sugar cane seedlings.

Description

technical field [0001] The invention relates to the technical field of plastic materials and water-saving agriculture, in particular to an oxidation-resistant and radiation-resistant special oxidation-resistant long-acting mulch film for sugarcane. Background technique [0002] With global warming and the increase in the frequency of extreme and abnormal weather, seasonal drought in sugarcane growing areas in Yunnan has become the norm. From 2009 to 2012, the annual rainfall in sugarcane areas in Yunnan was 30%-50% lower than that in 2000. Drought resistance in sugarcane areas in Yunnan Province has become an annual task. Plastic film is a kind of drought-resistant agricultural material that retains water and heat. At present, sugarcane film-covered cultivation has been fully promoted in the sugarcane areas of Yunnan Province, which has significantly increased production and income. However, since sugarcane is a crop with a long growth cycle (300-400 days to maturity), it c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08K5/17A01G13/02
Inventor 李如丹张跃彬刘少春樊仙邓军
Owner 云南中蔗农业科技有限责任公司
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