Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Agricultural composite film

A composite film and urea technology, applied in the field of plastic film, can solve the problems of increasing farmers' manpower and material resources, plastic film is not resistant to pulling, affecting the use of plastic film, etc. Effect

Inactive Publication Date: 2016-08-17
TAICANG HUANGJING HUANAN AGRI MACHINERY OPERATION SPECIALIZED COOP
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The films in the prior art are usually very thin, and the ductility is relatively weak, and when the plastic film is installed and used in the greenhouse, people will pull the film, or when the wind level is high, the plastic film is not resistant to pulling and is prone to damage. It will affect the use of the entire plastic film; in addition, to increase the nutrients of the farmland, it is necessary to spread additional fertilizers on the farmland, which increases the manpower and material resources of the farmers and increases the production cost

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Agricultural composite film
  • Agricultural composite film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, figure 1 It is a schematic diagram of the structure of an agricultural composite film provided by the present invention, which is sequentially arranged from top to bottom: a polytetrafluoroethylene layer 1, an anti-aging layer 2, a reinforcement layer 3, an insulation layer 4 and a urea sustained-release layer 5; The weight parts of the components in the urea sustained-release layer 5 are: polyvinyl alcohol: 65%; urea: 25%; formaldehyde: 8%; antioxidant: 0.5%; surfactant: 1.5%. The thickness of the composite film is 1.5 mm.

[0022] The reinforcing layer 3 is a grid formed by multiple fibers, and the polytetrafluoroethylene layer 1, the anti-aging layer 2, the reinforcing layer 3, the thermal insulation layer 4, and the urea sustained-release layer 5 are bonded together by thermal composite , The antioxidant is antioxidant 1010, and the surfactant is an anionic surfactant.

Embodiment 2

[0024] An agricultural composite film, which is sequentially arranged from top to bottom: a polytetrafluoroethylene layer 1, an anti-aging layer 2, a reinforcing layer 3, an insulation layer 4, and a urea sustained-release layer 5; wherein, the urea sustained-release layer 5 is The weight parts of each component are: polyvinyl alcohol: 70%; urea: 18%; formaldehyde: 5%; antioxidant: 1%; surfactant: 5%, and the thickness of the agricultural composite film is 2.5 mm.

[0025] The reinforcing layer 3 is a grid formed by multiple fibers, and the polytetrafluoroethylene layer 1, the anti-aging layer 2, the reinforcing layer 3, the thermal insulation layer 4, and the urea sustained-release layer 5 are bonded together by thermal composite , The antioxidant is antioxidant 1010, and the surfactant is an anionic surfactant.

Embodiment 3

[0027] An agricultural composite film, which is sequentially arranged from top to bottom: a polytetrafluoroethylene layer 1, an anti-aging layer 2, a reinforcing layer 3, an insulation layer 4, and a urea sustained-release layer 5; wherein, the urea sustained-release layer 5 is The weight parts of each component are: polyvinyl alcohol: 73%; urea: 17%; formaldehyde: 6.5%; antioxidant: 0.5%; surfactant: 3%, and the thickness of the agricultural composite film is 3.5 mm.

[0028] The reinforcing layer 3 is a grid formed by multiple fibers, and the polytetrafluoroethylene layer 1, the anti-aging layer 2, the reinforcing layer 3, the thermal insulation layer 4, and the urea sustained-release layer 5 are bonded together by thermal composite The antioxidant is antioxidant 168, and the surfactant is a nonionic surfactant.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an agricultural composite film. The agricultural composite film is characterized by being provided with a teflon layer, an anti-aging layer, a reinforcing layer, a heat insulating layer and an urea slow release layer in sequence from top to bottom, wherein the urea slow release layer is prepared from, by weight, 65-80% of polyvinyl alcohol, 10-25% of urea, 2-8% of formaldehyde, 0.1-1% of an antioxidant and 1-5% of a surfactant. The surface of the agricultural composite film is smooth; besides, on the premise that the transparency is not lowered obviously, the tensile strength of the film is greatly improved, and the service life of the film is greatly prolonged; moreover, the film is provided with the urea slow release layer, and urea is released into soil through moisture condensation, so that nutrients in farmland are increased, it is not needed to spread fertilizer to the farmland, manpower and material resources of farmers are saved, and production cost is lowered.

Description

Technical field [0001] The invention relates to the technical field of plastic films, in particular to an agricultural composite film. Background technique [0002] With the development of the economy and the adjustment of the rural industrial structure, the market demand for plastic films in China's rural industries continues to rise. In order to meet the needs of various aspects of agricultural production, agricultural plastic films are available in various varieties and specifications. Plastic film is widely used in the field of plastic greenhouses in the rural planting industry. The use of plastic greenhouses for the cultivation of vegetables and flowers has played a special and important role in alleviating the contradiction between supply and demand of vegetables in the off-season. It has significant social benefits and a huge reality. Economic benefits. [0003] The film in the prior art is usually very thin and relatively weak in ductility, and when the plastic film is in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/14A01C23/00B32B27/06B32B27/18B32B27/32B32B27/30B32B5/02B32B7/08B32B33/00C08L29/04C08K5/21C08K5/07
CPCA01C23/006A01G9/1438B32B5/028B32B7/08B32B27/06B32B27/18B32B27/30B32B27/322B32B33/00B32B2307/304B32B2307/54B32B2307/552B32B2307/748B32B2410/00C08K5/07C08K5/21C08L29/04Y02A40/25Y02P60/21
Inventor 高萍
Owner TAICANG HUANGJING HUANAN AGRI MACHINERY OPERATION SPECIALIZED COOP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com