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Ecological environment-friendly light-conversion mulching film

A mulching film and environmental protection technology, applied in the direction of plant protection cover, etc., can solve the problems of poor light transmittance and can not meet the requirements, etc., and achieve the effect of long service life, remarkable effect and ideal soil burial degradation effect.

Inactive Publication Date: 2014-09-17
GANSU TIANBAO PLASTIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mulch itself is relatively thin, and its thickness is generally 0.01-0.02mm. After laying, it will experience wind, sun, and environmental temperature changes. The service life of ordinary mulch is about 120 days, which cannot meet the requirements in many cases.
Most of the currently used mulch films are black or transparent. Transparent mulch films have good light transmittance, while black mulch films have good water retention, good weed control ability, and poor light transmission. However, these two commonly used mulch films are passively using solar energy.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Preparation of nano-degradation light-converting masterbatch: mixing the raw materials of nano-degradation light-converting masterbatch, high-speed stirring and kneading, plasticizing and extruding strands, drying, and pelletizing to obtain nano-degradation light-converting masterbatch. The raw materials and their weight percentages are: linear low-density polyethylene powder: 40%, low-density polyethylene: 10%, polyolefin elastomer: 10%, metallocene polyethylene: 10%, nano-sized corn biostarch: 12%, light transfer agent: 3.0%, antioxidant: 2.0%, dispersant stearic acid: 3.0%, dispersant polyethylene wax: 3.0%, heat preservation agent hydrotalcite: 7%.

[0026] The melt flow rate of the prepared nano-degradation light conversion masterbatch is 3.5g / 10min.

[0027] (2) Preparation of mulch film: Mix the prepared nano-degradation light-converting masterbatch and other raw materials according to their weight percentages, and send them to the film blowing machine for pl...

Embodiment 2

[0031] (1) Preparation of nano-degradation light conversion masterbatch: the steps are the same as in Example 1, and the raw materials and their weight percentages are: linear low-density polyethylene powder: 45%, low-density polyethylene: 8%, polyolefin elastomer : 8%, Metallocene Polyethylene: 9%, Nano Corn Biostarch: 12%, Brightening Agent: 3.0%, Antioxidant: 2.0%, Dispersant Stearic Acid: 3.0%, Dispersant Polyethylene Wax: 3.0 %, insulation agent hydrotalcite: 7%.

[0032] The melt flow rate of the prepared nano-degradation light conversion masterbatch is 3.2g / 10min.

[0033] (2) Preparation of mulch film: the steps are the same as in Example 1, and the raw materials and their weight percentages are: linear low-density polyethylene: 35%, low-density polyethylene: 15%, metallocene linear polyethylene: 20%, polyolefin Elastomer: 15%, nano-degradation light conversion masterbatch 15%.

[0034] Mulch products are pink.

Embodiment 3

[0036] (1) Preparation of nano-degradation light conversion masterbatch: the steps are the same as in Example 1, and the raw materials and their weight percentages are: linear low-density polyethylene powder: 50%, low-density polyethylene: 6%, polyolefin elastomer : 6%, Metallocene Polyethylene: 8%, Nano Corn Biostarch: 12%, Brightening Agent: 3.0%, Antioxidant: 2.0%, Dispersant Stearic Acid: 3.0%, Dispersant Polyethylene Wax: 3.0 %, insulation agent hydrotalcite: 7%.

[0037] The melt flow rate of the prepared nano-degradation light conversion masterbatch is 3.7g / 10min.

[0038] (2) Preparation of mulch film: the steps are the same as in Example 1, and the raw materials and their weight percentages are: linear low-density polyethylene: 40%, low-density polyethylene: 15%, metallocene linear polyethylene: 15%, polyolefin Elastomer: 15%, nano-degradation light conversion masterbatch 15%.

[0039] Mulch products are pink.

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Abstract

The invention provides an ecological environment-friendly light-conversion mulching film which is prepared from the following raw materials in percentage by weight: 35-45% of linear low density polyethylene, 10-15% of low density polyethylene, 10-20% of metallocene linear polyethylene, 10-15% of polyolefin elastomer and 10-15% of nano degradable light-conversion master batch. The preparation technique comprises the following steps: mixing the raw materials, sending into a film blowing machine, carrying out plastification, extrusion, blowing, traction and cooling, cutting, and rolling to obtain the finished mulching film product. The mulching film has the advantage of long service life, increases light required by photosynthesis of crops, and has favorable undercover culture effect on corn, wheat, strawberry, chili, onion, potato and other fruit / vegetable crops.

Description

technical field [0001] The invention relates to the field of agricultural products, in particular to an ecological and environment-friendly light-transfer film. Background technique [0002] Mulch film has the functions of heat preservation, entropy preservation, moisture retention and fertilizer preservation, which can increase the yield of crops and reduce farm labor. In modern agriculture, plastic film mulching cultivation technology has been comprehensively promoted. While plastic film cultivation has many advantages, it also has some problems. The mulch itself is relatively thin, and its thickness is generally 0.01-0.02mm. After laying, it will experience wind, sun, and environmental temperature changes. The service life of ordinary mulch is about 120 days, which cannot meet the requirements in many cases. Most of the mulch films currently used are black or transparent. Transparent mulch films have good light transmittance, while black mulch films have good water rete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L23/00C08L3/02C08K5/09C08K3/26C08J3/22A01G13/02
CPCC08L23/0815A01G13/02C08J3/226C08J5/18C08J2323/08C08J2423/06C08L2201/06C08L2205/025C08L2205/035C08L2207/06
Inventor 王智勤赵建民马小元
Owner GANSU TIANBAO PLASTIC CO LTD
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