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Production method of agricultural land surface covered weeding degradable mulching film

A technology of degrading mulch film and production method, applied in the direction of plant protection cover, etc., can solve the problem of time-consuming and labor-intensive application of herbicides

Inactive Publication Date: 2013-03-13
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

[0004] There are two main production methods of weeding mulch film. One method is to apply herbicides and additives on the surface of the mulch film, then roll and pack after drying, and cover the side with herbicide on the soil surface for use, but applying herbicides is time-consuming and labor-intensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Fully mix 0.6% acetochlor emulsifiable concentrate in 98% polyethylene LLDPE 7042 with a screw mixer, then add 0.1% cerium stearate, 0.2% manganese stearate, 0.1% ultraviolet absorber UV531 and 1% a For terazine powder, mix all the raw materials thoroughly, and use Luguan SJ-65 film blowing machine to blow the film under the condition that the heating temperature is lower than 175°C. The temperature is 160°C, the third zone is 170°C, and the head temperature is 165°C. The thickness of the film is 0.008mm, and the width is 1500mm. The physical properties and functions of the film meet the national standard GB13735-92 polyethylene blown agricultural ground cover film. The packaged film is stored in the dark and low temperature for 5 months.

Embodiment 2

[0023] Fully mix metolachlor 0.8% in 97.8% polyethylene LLDPE 7042 with a screw mixer, then add 0.1% cerium stearate, 0.1% manganese stearate, 0.2% ultraviolet absorber UV 9, 0.6% atrazine technical powder, 0.4% diuron, let all the raw materials be fully mixed evenly, and use Luguan SJ-65 film blowing machine to blow the film under the condition that the heating temperature is lower than 175 ℃, in which the heating The temperature in the first zone is adjusted to 155°C, the temperature in the second zone is 160°C, the temperature in the third zone is 170°C, and the temperature of the machine head is 165°C. The thickness of the film is 0.008mm, and the width is 1500mm. The physical properties and functions of the film meet the national standard GB13735-92 polyethylene blown agricultural ground cover film. The packaged film is stored in the dark and low temperature for 5 months.

Embodiment 3

[0025] Fully mix metolachlor 0.4% and acetochlor 0.4% in 97.6% polyethylene LLDPE 7042 with a screw mixer, then add cerium stearate 0.2%, manganese stearate 0.1%, 0.3% Ultraviolet absorber UV326, atrazine powder 1%, let all raw materials be fully mixed, use Luguan SJ-65 film blowing machine to blow into film under the condition that the heating temperature is lower than 175 ℃, and one area will be heated The temperature modulation is 155°C, the temperature in the second zone is 160°C, the temperature in the third zone is 170°C, and the temperature of the machine head is 165°C. The thickness of the film is 0.008mm, and the width is 1500mm. The physical properties and functions of the film meet the national standard GB13735-92 polyethylene blown agricultural ground cover film. The packaged film is stored in the dark and low temperature for 5 months.

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Abstract

The invention provides a production method of an agricultural land surface covered weeding degradable mulching film. The film is prepared from the raw materials including 95-99% of linear low-density polyethylene LLDPE7042, a compound degradable catalyst, 0.01-1% of an ultraviolet ray adsorbent, 0.45-2% of a powdery herbicide and 0.45-1.5% of emulsified oil herbicide. The production method comprises the following steps of: sufficiently mixing the emulsified oil herbicide into the linear low-density polyethylene LLDPE7042; then adding the compound degradable catalyst, the ultraviolet ray adsorbent and the powdery herbicide; and blowing a sufficiently-mixed mixture by a film blowing machine into the film, wherein the physical performance and the use function of the film accord with the national standard GB13735-92. The degrading time of the mulching film is 90-120 days and the effective weeding time is about 90 days; a weeding range comprises annual dicotyledonous plants and monocotyledon plants; and the film is tightly stuck on the ground to cover and does not have positive and negative faces, and the film is recommended to be used on crops such as corns, tobaccos, cottons, sugarcanes and vegetables.

Description

technical field [0001] The invention relates to the field of polymer materials and the technical field of agricultural pest control, in particular to the synthesis of degradable chemical method weeding mulch, which is a production method of agricultural ground covering degradable mulch. Background technique [0002] In the situation that my country's rural labor force is increasingly scarce, the traditional intensive farming mode of agricultural production will be difficult to continue. Agricultural mechanization and one-time agricultural technology that reduces labor input will be a new trend in the development of modern agriculture. The degradable mulch film with weeding function will be a one-time cost-saving agricultural new technology that can not only ensure crop yield and quality, but also reduce labor input. [0003] There have been a lot of research reports on degradable mulch, but there are mainly three types of degradable mulch currently being studied: photodegra...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08K13/02C08K5/098B29C55/28A01G13/02
Inventor 李如丹张跃彬严娟刘家勇樊仙吴正焜
Owner 云南中蔗农业科技有限责任公司
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