Fog-dissipation and anti-dropping polyvinyl chloride greenhouse film and preparation method thereof

A polyvinyl chloride, anti-fog and non-drip technology, which is applied in the direction of chemical instruments and methods, lamination, layered products, etc., can solve the problems of drop-free effect drop, poor durability, etc., to reduce the number of replacements and reduce labor intensity , the effect of saving resources

Active Publication Date: 2014-12-31
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The polyvinyl chloride greenhouse film disclosed in the above patents, with the extension of the use time, the anti-fog and no-drip effect decreases significantly, and the durability is poor

Method used

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  • Fog-dissipation and anti-dropping polyvinyl chloride greenhouse film and preparation method thereof
  • Fog-dissipation and anti-dropping polyvinyl chloride greenhouse film and preparation method thereof
  • Fog-dissipation and anti-dropping polyvinyl chloride greenhouse film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 6~10

[0049] The composite anti-fogging and drip-free additive components (parts by weight) in Examples 6-10 are:

[0050]

[0051] The preparation method of durable anti-fog and non-drip polyvinyl chloride greenhouse film is the intercalation-material mixing-calendering process of anti-fog agent and non-drip agent and slow-release agent:

[0052] Anti-fogging agent and non-drip agent and slow-release agent intercalation process: add nano-slow-release agent (hydrotalcite), composite anti-fogging agent, and composite non-drip agent to anhydrous ethanol according to the formula ratio into a three-necked bottle with condenser reflux In the method, the mass ratio of the nano-sustained-release agent to absolute ethanol is 1:9, heated to 50°C, and reacted with strong stirring for 2 hours, filtered, dried in a vacuum oven, and ground.

[0053] Material mixing process: mix polyvinyl chloride resin, stabilizer, plasticizer, lubricant, antioxidant, light stabilizer, compound anti-fog and n...

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Abstract

The invention relates to a fog-dissipation and anti-dropping polyvinyl chloride greenhouse film and a preparation method thereof, and belongs to the technical field of polymer materials. The preparation method is characterized in that 100 parts by weight of a polyvinyl chloride resin is adopted as the main raw material, 2.5-5.0 parts by weight of a composite anti-fogging and anti-dropping additive is added, and a three-layer co-extruding composite calendering process is adopted to prepare the greenhouse film with a three-layer composite structure, wherein the concentration of the composite anti-fogging and anti-dropping additive in the middle layer is 1.5-2.5 times the concentration of the composite anti-fogging and anti-dropping additive in the surface layer, the thickness of the middle layer is 2-3 times the thickness of the surface layer, and the composite anti-fogging and anti-dropping additive is formed by carrying out an intercalation reaction on 10-15 parts by weight of a composite anti-fogging agent, 25-50 parts by weight of a composite anti-dropping agent, and 40-80 parts by weight of a slow-release agent. The durable fog-dissipation and anti-dropping polyvinyl chloride greenhouse film preparation method is the intercalation-material matching and mixing-calendering process of the anti-fogging agent, the anti-dropping agent and the slow-release agent. The fog-dissipation and anti-dropping polyvinyl chloride greenhouse film has effects of fog-dissipation and anti-dropping.

Description

technical field [0001] A fog-eliminating and drip-free polyvinyl chloride greenhouse film and a preparation method thereof belong to the technical field of polymer materials. Background technique [0002] Vegetable greenhouses are planted in northern my country to solve the problem of fresh vegetable supply in the winter season. Due to the large difference in temperature and humidity inside and outside the vegetable greenhouse, it is easy to form fog in the greenhouse and form a water film on the surface of the greenhouse film, which affects the transparency of the greenhouse and reduces sunlight exposure. Covering the greenhouse film with anti-fog and drip-free functions can effectively solve such problems, and at the same time limit the growth of mold, so that vegetables can grow well and improve quality and yield. [0003] Currently, the commonly used anti-fog and drip-free greenhouse films include PVC film and PE film. PE film has poor transparency due to its large crys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/18B32B27/30B32B37/10C08L27/06C08K13/06C08K9/12C08K3/26C08K3/34
Inventor 贾小波张学明孔秀丽李长春肖恩琳张强许永森苏建华
Owner CHINA PETROLEUM & CHEM CORP
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