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Agricultural film and preparation method thereof

An agricultural film and base film technology, applied in the field of agricultural film, can solve the problems of affecting the mechanical properties of the film and reducing the transparency of the film, and achieve the effects of good durability, avoiding outward migration, and good resistance to extraction.

Active Publication Date: 2019-10-29
NINGBO XIANFENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Disclosed light-scattering agricultural film as publication number CN104441869A, it is to add some inorganic light-scattering particles in film: kaolin, diatomaceous earth, talcum powder, hydrotalcite, sericite, barium sulfate etc., but these inorganic additives not only It reduces the transparency of the film and also affects the mechanical properties of the film

Method used

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  • Agricultural film and preparation method thereof
  • Agricultural film and preparation method thereof
  • Agricultural film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] S1: Preparation of PVC transparent base film

[0073] First weigh the following raw materials in parts by weight:

[0074] PVC resin: 100

[0075] Calcium zinc composite stabilizer: 3

[0076] Triphenyl phosphite: 0.6

[0077] Primary plasticizer: 37

[0078] Auxiliary plasticizer: 10

[0079] Epoxidized soybean oil: 3

[0080] Ethylene-vinyl acetate copolymer: 3

[0081] Vinyl chloride grafted chlorinated polyethylene copolymer: 3

[0082] Monoglycerides of fatty acids: 1.2

[0083] Anti-ultraviolet agent: 0.7

[0084] Antioxidant: 0.7

[0085] Light stabilizer: 0.4

[0086] Brightener: 0.02

[0087] The main plasticizer is trioctyl trimellitate; the auxiliary plasticizer is dioctyl adipate; the anti-ultraviolet agent is triazine-5; Base-4-hydroxyphenyl) propionate] pentaerythritol ester; light stabilizer is poly 1-(2-hydroxyethyl-2,2,6,6-tetramethyl-4-hydroxypiperidine succinate; The whitening agent is 2.5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene.

[0...

Embodiment 2

[0112] The difference with embodiment 1 is only that the number of parts of ethylene-vinyl acetate copolymer in the PVC transparent base film raw material of embodiment 2 is 2 parts, and the number of parts of vinyl chloride grafted chlorinated polyethylene copolymer is 2 parts.

Embodiment 3

[0114] The difference with embodiment 1 is only that the number of parts of ethylene-vinyl acetate copolymer in the PVC transparent base film raw material of embodiment 3 is 4 parts, and the number of parts of vinyl chloride grafted chlorinated polyethylene copolymer is 4 parts.

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Abstract

The invention relates to an agricultural film, particularly to a polyvinyl chloride composite agricultural film and a preparation method thereof, belonging to the technical field of agriculture. The agricultural film comprises a PVC transparent base film layer, wherein a coated inner layer and a coated surface layer are respectively located at two sides of the base film layer. The agricultural film of the invention is simple in structural composition; the PVC transparent base film layer has light scattering characteristics; the coated inner layer is a transparent inner layer having mist drip eliminating and heat preserving properties; and the coated surface layer is a transparent surface layer having a self-cleaning property. The agricultural film has high light transmittance and light scattering characteristics, good self-cleaning, anti-ultraviolet, mist drip-eliminating, thermal-insulating and mechanical properties, excellent heat and weather resistance, and tidy and smooth surface,and can be better applied to covering of fields in which melons, vegetable and crops such as cotton, corn, soybeans and rice are planted.

Description

technical field [0001] The invention relates to an agricultural film, in particular to a polyvinyl chloride composite agricultural film and a preparation method thereof, belonging to the field of agricultural technology. Background technique [0002] Agricultural film is an indispensable part of every country's agricultural products, and has become the third largest agricultural production raw material after chemical fertilizers and pesticides. Agricultural film is the general term for plastic films used in agricultural production. It plays a very important role in moisturizing crops, keeping warm, accelerating photosynthesis, adjusting light, preventing weeds and insects, etc. It can accelerate the growth of crops, extend the growth period, increase production, etc. . [0003] At present, the commonly used agricultural films are made of polymer composite materials by calendering or blow molding, mainly including polyvinyl chloride (PVC) film, polyethylene (PE) film, ethyle...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/08C08L51/06C08L91/00C08K5/526C08K5/12C08K5/101C08K5/11C08K5/00C08J5/18C08J7/04A01G13/02A01G9/14
CPCC08L27/06C08J5/18A01G13/0275A01G9/1438C08L2201/10C08L2201/08C08L2205/035C08J2327/06C08J2427/06C08J2467/08C08J7/0423C08L23/0853C08L51/06C08L91/00C08K5/526C08K5/12C08K5/101C08K5/11C08K5/00Y02A40/25
Inventor 熊圣东
Owner NINGBO XIANFENG NEW MATERIAL
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