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High-strength, Weather-resistant and Easy-to-recycle Mulch Film (Gaobao Film)

 

Gaobao Film-High-strength, Weather-resistant and Easy-to-recycle Mulch Film

"Gaobao film" is a new generation of technology developed by our company, which has won the Chinese Invention Patent Gold Award, "the method and equipment for plasticizing and transporting polymer materials based on extensional rheology", referred to as "ERE" patent, combined with material formulation technology. The high-strength, high-weather-resistant and easy-to-recycle mulch film has mechanical properties much higher than the GB13735-2017 standard, and has the advantages of high strength and good weather resistance. After 6 consecutive years of field mulching experiments, the full recovery and high-value utilization of mulch film has been realized, and it has obvious effect of increasing production. The characteristics of "extremely easy to recycle" and "high-value reuse" effectively solve the problem of "white pollution" caused by "difficult to recycle and useless" for ordinary plastic film.

Performance index

Inspection items Index value Test results
Gaobao Film
original sample
tensile load,N longitudinal >1.6 6.5
horizontal 5.06
Nominal strain at break,% longitudinal >260 360
horizontal 750
Xenon lamp aging
After 600h
longitudinal tensile load, N --- 4.14
Longitudinal fracture nominal strain, % --- 350
Nominal strain retention at longitudinal fracture, % >50 97.2
Transmittance,% >87 90.5

Product Specifications

Thickness: 0.01mm, width: 900mm, 1250mm, 2050mm Support customization of other thickness and width products

Performance advantage and benefit analysis

Ecological Benefits - Full Recycling

● The mechanical one-time recovery rate is over 90%; The labor recovery rate is over 98%;

Manual recycling of Gaobao Film

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Manual recycling of Gaobao Film

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Gaobao Film Mechanical Recycling

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Comparison chart of mechanical recycling effect

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Social Benefit - High-value Reuse Possible

● The residual film has high mechanical properties. After cleaning and re-granulation, it can be used for high-value reuse in the production of packaging shrink film.

Recycling the residual film of Gaobao Film after cleaning

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Gaobao Film Recycled Material

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Cluster Packaging Films Containing Gaobao Film Recycled Materials

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Application of cluster film in beverage packaging

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Economic Benefits - Increase Production

● Under the same planting conditions, the unit yield of crops covered with ordinary plastic film will increase by more than 5%, and the comprehensive economic benefit will increase by more than 13%.

Growth chart of cotton seedlings 15 days after germination Field

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Growth chart of cotton seedlings after six weeks Field

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Gaobao Film does not rupture during the entire growth cycle of cotton

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Gaobao Film does not rupture during the entire growth cycle of cotton

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Forming principle

Multilayer Rotary Shear Laminar Flow Dynamic Distribution Composite Molding Technology

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Technical principle

1. Volume extensional rheological plasticization transportation technology-ZL201410206552.8

The extensional rheology technology can process materials that cannot be processed by traditional screws, greatly shorten the processing process, and avoid material shear chain scission and thermal degradation.

 

2. Multi-layer rotary shear laminar flow dynamic distribution composite molding technology-ZL201510789289.4

The rotating flow field can promote the lateral orientation of the materials of each layer, increase the performance of the film, and meet the recycling performance requirements of the fully recycled plastic film after use.

 

3. Multilayer thin film structure design technology-ZL201410711644.1

With the help of the homogenization of the rotational shear laminar flow dynamics, the functionalized multilayer film structure is designed, and the differentiated application requirements of the composite film are met at the same time.

 

Certified by experts. The new technology, equipment and process have reached the international leading level

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2020 Trial Report

By the key laboratory of agricultural film pollution prevention and control of the Ministry of Agriculture and Rural Affairs of the People's Republic of China. The Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences organized the test and was identified by experts. The results of the comparison test of high-castle film, biodegradable plastic film and traditional plastic film cotton planting (measured from April to October 2020):

1

Soil temperature increase: 0.9-3.3°C

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Within 30 days after sowing, the soil humidity of ±5cm in Gaobao Film reached 21.0℃. It is 0.9°C higher than traditional mulch film, 1.9°C higher than biodegradable mulch film, and 33°C higher than tree ground; it can effectively improve the emergence rate of cotton and better meet the needs of early growth of cotton seedlings.

2

Soil moisture is higher than traditional plastic film: about 7%

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The moisture production of Gaobao Film is 28.1g/m2/d. 37.8% lower than traditional plastic film. It is 93% lower than the biodegradable plastic film; the high castle film can greatly reduce the water loss rate of cotton fields. Effectively increase soil water content. It is more conducive to water saving and drought resistance,

3

Increased cotton yield: 27.5kg/mu

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The output of Gaobao Film cotton field is 500.5kg/mu, which is more than 5% higher than that of ordinary mulch film. The yield is more than 26% higher than that of biodegradable ground. It improves the economic benefits of cotton planting.

4

Residual film recovery rate: 90%

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The residual film has high mechanical properties, the recovery rate is over 90%, and it can be reused at high value.

2021 Trial Report

The Key Laboratory of Agricultural Film Pollution Prevention and Control of the Ministry of Agriculture of the People's Republic of China and the Institute of Agricultural Environment and Sustainable Development of the Chinese Academy of Agricultural Sciences have issued a demonstration report on the promotion effect of 300,000 mu of high-castle film in Xinjiang, "2021 Xinjiang Cotton Gaobao Film Application Test Demonstration The conclusion of the report: high recyclability and good economic benefits.

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Test results over the years

Time

Unit

location

crops

Experiment Results

April-October 2021

Key Laboratory of Agricultural Film Pollution Prevention and Control of the Ministry of Agriculture and Rural Affairs
Chinese Academy of Agricultural Sciences Institute of Agricultural Environment and Sustainable Development

Kashgar, Xinjiang
McGaity County

Cotton (300,000 mu)

After the 10μm thick high-castle film is used, the recovery rate of the residual film is over 90%. Compared with the traditional plastic film under the same conditions, the recovery rate is increased by 30%, and the comprehensive cost is reduced by 50 yuan / mu, crop yield increased by 6.5%-10.4%, economic income increased by 14.8%-22.8%. High recyclability and good economic benefits.

April-October 2021

Xinjiang Agricultural University Academy of Agricultural Sciences

Asuk City
Shaya County

cotton

10μm thick Gaobao Film is used, compared with the double-layer ordinary plastic film under the same conditions, the crop yield increased by 9.4%, and the profit increased by 20.23%; under the influence of the same hail disaster, compared with the ordinary film For plastic film, the average crop yield increased by 5.17%, and the profit increased by 14.45% on average.

April-October 2020

Key Laboratory of Mulch Film Pollution Prevention and Control of the Ministry of Agriculture and Rural Affairs
Chinese Academy of Agricultural Sciences Institute of Agricultural Environment and Sustainable Development

Southern, Northern Xinjiang and Yellow River Delta
Mongolia

cotton, peanut, potato, corn

10μm thick Gaobao Film, the recovery rate after use is more than 95%, compared with traditional plastic film under the same conditions, the crop yield increased by more than 5%, compared with biodegradable plastic film under the same conditions, The crop yield is increased by more than 26%, which can be reused with high value.

April-October 2019

Xinjiang Academy of Agricultural Reclamation

Shihezi
Jiashi County

Cotton

10µm thick Gaobao Filmm, the one-time mechanical recovery rate after use is more than 95%. Compared with ordinary plastic film under the same conditions, the crop yield is increased by more than 5%, which can be reused at high value. .

April-October 2017

Xinjiang Academy of Agricultural Sciences

Shihezi
Three Division 49 Regiment

cotton

8µm, 10µm thick Gaobao Film can meet the climatic conditions of southern and northern Xinjiang, realize full mechanical recovery, and find a trend of increasing production.

April-October 2017

Xinjiang Academy of Agricultural and Reclamation

Shihezi

cotton

10µm thick Gaobao Film, which can be fully mechanically recycled after use, and the recycled mulch film is complete and less impurities.

April-September 2016

Xinjiang Academy of Agricultural and Reclamation

Chifeng, Inner Mongolia

Sorghum

10µm thick Gaobao Film, the mechanical properties of the residual film are higher than the national standard of ordinary plastic film, and it can be fully recycled manually.

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