High dust-proof and long-lasting light-changing five-layer co-extruded greenhouse film and its preparation method

A greenhouse film and light conversion technology, which is applied in the direction of botany equipment and methods, chemical instruments and methods, layered products, etc., can solve the problems of dust prevention, light conversion, and dripping and defogging functions that cannot coexist, and achieves the preparation method Scientific and reasonable, many results, fast crop growth effect

Active Publication Date: 2021-01-29
SHANDONG QINGTIAN PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Now there are greenhouse films with dust-proof and light-changing functions on the market, but their dust-proof, light-changing and dripping and fog-eliminating functions cannot coexist, and only one or two of the three functions can exist; in order to overcome the above shortcomings , there is an urgent need to develop a more comprehensive greenhouse film

Method used

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  • High dust-proof and long-lasting light-changing five-layer co-extruded greenhouse film and its preparation method
  • High dust-proof and long-lasting light-changing five-layer co-extruded greenhouse film and its preparation method
  • High dust-proof and long-lasting light-changing five-layer co-extruded greenhouse film and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] The inner layer, sub-inner layer, middle layer, outer layer, and sub-outer layer greenhouse film proportioning described in this embodiment 1 are added according to the ratio given in the formula, specifically:

[0079] The ratio of the inner layer of the greenhouse film: 80% polyethylene raw material (200kg) + 10% longevity masterbatch (25kg) + 10% dustproof masterbatch (25kg) (a total of 250kg is poured into the mixer and mixed evenly), of which polyethylene raw material Mix low-density polyethylene and metallocene polyethylene in a mass ratio of 3:7;

[0080] The ratio of the second inner layer of the greenhouse film: 87% polyethylene raw material (217.5kg) + 10% longevity masterbatch (25kg) + 3% light-transforming masterbatch (7.5kg) (a total of 250kg is poured into the mixer and mixed evenly), of which The polyethylene raw material is mixed with low-density polyethylene and metallocene polyethylene in a mass ratio of 7:3;

[0081] The proportion of the middle laye...

Embodiment 2

[0118] The ratio of the inner layer, sub-inner layer, middle layer, outer layer and sub-outer layer of greenhouse film described in this embodiment 2 is added according to the ratio given in the formula, specifically: inner layer of greenhouse film, sub-inner layer, middle layer, outer layer and The proportioning of second outer layer is all identical with embodiment 1.

[0119] The weight of each package of the longevity masterbatch, thermal insulation masterbatch and dripping anti-mist masterbatch is 25kg, and the proportioning ratio is the same as in Example 1.

[0120] Described dustproof master batch weighs 25kg per bag, is to be made of the raw material of following weight:

[0121]

[0122] The light-changing masterbatch weighs 25kg per package and is made of raw materials with the following weights:

[0123] Polyethylene powder 23.75kg

[0124] Organic synthetic rare earth light conversion agent (Hunan Normal University) 1.25kg.

[0125] The preparation method of...

Embodiment 3

[0127] The inner layer, sub-inner layer, middle layer, outer layer, and sub-outer layer greenhouse film proportioning described in this embodiment 3 are added according to the ratio given in the formula, specifically: the greenhouse film inner layer, sub-inner layer, middle layer, outer layer and The proportioning of second outer layer is all identical with embodiment 1.

[0128] The weight of each package of the longevity masterbatch, thermal insulation masterbatch and dripping anti-mist masterbatch is 25kg, and the proportioning ratio is the same as in Example 1.

[0129] Described dustproof master batch weighs 25kg per bag, is to be made of the raw material of following weight:

[0130]

[0131] The light-changing masterbatch weighs 25kg per package and is made of raw materials with the following weights:

[0132] Polyethylene powder 23kg

[0133] Organic synthetic rare earth light conversion agent (Hunan Normal University) 2kg.

[0134] The preparation method of the hi...

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Abstract

The invention belongs to the technical field of agricultural film preparation, and in particular relates to a five-layer co-extruded greenhouse film with high dust resistance and long-lasting light conversion and a preparation method. The five-layer co-extruded greenhouse film with high dustproof and long-lasting light conversion of the present invention comprises an outer layer, a sub-outer layer, a middle layer, a sub-inner layer and an inner layer, the outer layer and the sub-outer layer are the dripping layer of the greenhouse film, and the middle layer It is the insulation layer of the greenhouse film, and the inner layer and the sub-inner layer are the longevity layers of the greenhouse film; among them, the light-transfer masterbatch is added to the sub-inner layer, and the dust-proof masterbatch is added to the inner layer. The high dust-proof and long-lasting light-changing five-layer co-extruded greenhouse film not only has the function of dripping, but also has the function of light-changing and dust-proof; the preparation method described in the present invention is scientific and reasonable, simple and easy; The above-mentioned high dust-proof and long-lasting light-changing five-layer co-extruded greenhouse film covered greenhouse has the advantages of fast crop growth, good fruit setting, many results, strong stress resistance, early maturity, increased production, and good quality.

Description

technical field [0001] The invention belongs to the technical field of agricultural film preparation, and in particular relates to a five-layer co-extruded greenhouse film with high dust resistance and long-lasting light conversion and a preparation method. Background technique [0002] At present, the production and consumption of plastic agricultural film in my country ranks among the top in the world, and the agricultural film market is gradually developing to the high-end field. The development from the conventional 3-layer to 5-layer structure has become the general consensus of the agricultural film industry, and the agricultural film is moving towards Multifunctional development; the "vegetable basket" project is an important way to increase farmers' income, and it is also the basic condition for stabilizing prices, stabilizing the market, and ensuring people's living needs. With the construction of "vegetable basket" projects across the country, the scale of facility v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/14B32B27/08B32B27/06B32B27/32B32B27/30B32B27/20C08J3/22C08L23/06C08L23/08
CPCA01G9/1438B32B27/08B32B27/20B32B27/306B32B27/32B32B2410/00C08J3/226C08J2323/06C08J2323/08C08J2423/06C08J2423/08Y02A40/25
Inventor 尹君华国先峰李刚马云霞徐淑美
Owner SHANDONG QINGTIAN PLASTIC IND
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