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Special shading and cooling greenhouse film for culturing edible fungi

A greenhouse film, edible fungus technology, applied in the application, greenhouse cultivation, climate change adaptation and other directions, can solve the problems of being unable to resist sunlight, no solution, unfavorable growth of edible fungi, etc., to achieve excellent mechanical and weather resistance performance, extended Effectiveness of service life, yield and quality improvement

Active Publication Date: 2014-06-04
ZHEJIANG DEQING GAOYUAN PLASTIC FILM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason is that the highest temperature in hot summer can reach above 40°C, and the white layer of the black and white film is a diffuse reflection surface, which cannot withstand such strong sunlight, causing a large part of the sunlight to be absorbed by the black layer, so that the inside of the shed A sharp rise in temperature is not conducive to the growth of edible fungi
This is a difficult problem that is closely related to the interests of farmers and urgently needs to be solved, but no effective solution has yet emerged

Method used

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  • Special shading and cooling greenhouse film for culturing edible fungi

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] What is described is a kind of shading and cooling greenhouse film specially used for cultivating edible fungi. From the outside to the inside, there are light-transmitting protective layer 1, silver reflective layer 2, first milky white reflective layer 3, second milky white reflective layer 4 and black heat preservation layer. 5.

[0033] Wherein, the light-transmitting protective layer 1 is a BOPET film with a thickness of 15 μm and a light transmittance of 97%. The main function of this layer is to protect the silver reflective layer 2 from being scratched and affect the reflectivity. The high light transmittance of BOPET can ensure that almost all sunlight enters the surface of the next layer of film and is reflected.

[0034] The thickness of the silver reflective layer 2 is 20 μm. Among its main components, the substrate is a co-extruded film of LLDPE and LDPE, the contents are 30% and 55% respectively, and the aluminum powder is 3000 mesh, and the addition amoun...

Embodiment 2

[0042] What is described is a kind of shading and cooling greenhouse film specially used for cultivating edible fungi. From the outside to the inside, there are light-transmitting protective layer 1, silver reflective layer 2, first milky white reflective layer 3, second milky white reflective layer 4 and black heat preservation layer. 5.

[0043] Among them, the light-transmitting protective layer 1 is a modified PP film with a thickness of 20 μm and a light transmittance of 96%; the thickness of the silver reflective layer 2 is 25 μm. Among its main components, the substrate is a co-extruded film of LLDPE and LDPE, and the content is 55%, 25%, aluminum powder 1500 mesh, and the addition amount is 20%; the thickness of the first opalescent reflective layer 3 is 25 μm, among its main components, the matrix is ​​a co-extruded film of LLDPE and LDPE, the content is 55%, 30% respectively, and the inorganic filler is Titanium dioxide, 800 mesh, the addition amount is 15%; The thic...

Embodiment 3

[0048] What is described is a kind of shading and cooling greenhouse film specially used for cultivating edible fungi. From the outside to the inside, there are light-transmitting protective layer 1, silver reflective layer 2, first milky white reflective layer 3, second milky white reflective layer 4 and black heat preservation layer. 5.

[0049] Among them, the light-transmitting protective layer 1 is a (mLLDPE+LLDPE+LDPE) film with a thickness of 24 μm and a light transmittance of 97%; the thickness of the silver reflective layer 2 is 30 μm. Among its main components, the substrate is a co-extruded film of LLDPE and LDPE, and the contents are respectively 30% and 60%, aluminum powder 1000 mesh, and 10% added; the thickness of the first milky white reflective layer 3 is 30 μm, and its main component is a co-extruded film of LLDPE and LDPE, and the content is 35% and 50% respectively , the inorganic filler is calcium carbonate, 500 mesh, and the addition amount is 15%; the th...

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Abstract

The invention discloses a special shading and cooling greenhouse film for culturing edible fungi. The film sequentially comprises a transmitting protective layer, a silver reflective layer, a first milky-white reflective layer, a second milky-white reflective layer and a black insulating layer from outside to inside. According to the special shading and cooling greenhouse film for culturing edible fungi produced according to the technical scheme, the shading effect can be furthest achieved by utilizing total reflection, double diffuse reflection and absorption of the multi-layer composite film to sunlight in hot summer, injury of long-time solarization to edible fungi in a greenhouse can be prevented, the environmental temperature in the greenhouse can be effectively reduced, a cold and damp environment for growth of edible fungi is created, and the yield and quality of edible fungi can be improved. Furthermore, the greenhouse film has excellent mechanical and weather tolerance, and the service life of the greenhouse film can be effectively prolonged, so that waste of greenhouse films can be reduced, and the social theme of energy-saving and environment-friendliness can be met.

Description

technical field [0001] The invention relates to the field of agricultural greenhouse films, in particular to a light-shielding and cooling greenhouse film specially used for cultivating edible fungi. Background technique [0002] my country is currently the largest country in the world for the cultivation, processing, trade and consumption of edible fungi. There are more than 18 million relevant practitioners and more than 60 cultivars in the country. As of last year, the total output of edible fungi in my country has accounted for more than 80% of the world's total output. According to statistics from the Ministry of Agriculture, in the domestic planting industry, edible fungi ranks sixth after grain, cotton, oil, vegetables, and fruits. [0003] Most edible fungi like to be cool and humid. The cultivation process requires shade in a greenhouse, and try to avoid long-term sun exposure. In the past, mushroom farmers used straw curtains, bark, etc. to shade the roof of the ...

Claims

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Application Information

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IPC IPC(8): B32B27/08B32B27/20B32B15/08B32B33/00A01G9/14A01G1/04
CPCY02A40/25
Inventor 何京昌樊亚绒傅华康马国维
Owner ZHEJIANG DEQING GAOYUAN PLASTIC FILM CO LTD
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