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Anti-ultraviolet and anti-fog polyethylene greenhouse film and preparation method thereof

An anti-ultraviolet and polyethylene technology, applied in the field of materials, can solve the problems of not being able to prevent fog, and achieve the effects of inhibiting agglomeration, promoting refinement, and increasing crystallinity

Active Publication Date: 2020-06-05
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of anti-fogging agent will also decrease continuously with the movement of molecules to the surface of the film. When it reaches a certain aging time, it will not be able to play the role of anti-fogging.

Method used

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  • Anti-ultraviolet and anti-fog polyethylene greenhouse film and preparation method thereof
  • Anti-ultraviolet and anti-fog polyethylene greenhouse film and preparation method thereof
  • Anti-ultraviolet and anti-fog polyethylene greenhouse film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An anti-ultraviolet and anti-fog polyethylene shed film, comprising the following components in parts by weight:

[0032] LLDPE resin: 100 parts;

[0033] LDPE resin: 30 parts;

[0034] EVA plastic: 30 parts;

[0035] Anti-ultraviolet anti-fog agent rGO / SiO 2 -g-PGMO: 5 parts;

[0036] The LLDPE resin is linear low density polyethylene, and LLDPE is usually produced by copolymerization of ethylene and higher alpha olefins such as butene, hexene or octene at lower temperature and pressure. The LLDPE polymer produced by the copolymerization process has a narrower molecular weight distribution than ordinary LDPE, and has a linear structure that makes it have different rheological properties. The melt flow characteristics of LLDPE adapt to the requirements of the new process, especially the film extrusion process, which can produce high-quality LLDPE products.

[0037] The LDPE resin is low-density polyethylene, and low-density polyethylene usually uses ethylene as a m...

Embodiment 2

[0046] An anti-ultraviolet and anti-fog polyethylene shed film, comprising the following components in parts by weight:

[0047] LLDPE resin: 100 parts;

[0048] LDPE resin: 30 parts;

[0049] EVA plastic: 30 parts;

[0050] Anti-ultraviolet anti-fog agent rGO / SiO 2 -g-PGMO: 10 parts;

[0051] The LLDPE resin is linear low density polyethylene, and LLDPE is usually produced by copolymerization of ethylene and higher alpha olefins such as butene, hexene or octene at lower temperature and pressure. The LLDPE polymer produced by the copolymerization process has a narrower molecular weight distribution than ordinary LDPE, and has a linear structure that makes it have different rheological properties. The melt flow characteristics of LLDPE adapt to the requirements of the new process, especially the film extrusion process, which can produce high-quality LLDPE products.

[0052] The LDPE resin is low-density polyethylene, and low-density polyethylene usually uses ethylene as a ...

Embodiment 3

[0061] An anti-ultraviolet and anti-fog polyethylene shed film, comprising the following components in parts by weight:

[0062] LLDPE resin: 100 parts;

[0063]LDPE resin: 30 parts;

[0064] EVA plastic: 30 parts;

[0065] Anti-ultraviolet anti-fog agent rGO / SiO 2 -g-PGMO: 15 parts;

[0066] The LLDPE resin is linear low density polyethylene, and LLDPE is usually produced by copolymerization of ethylene and higher alpha olefins such as butene, hexene or octene at lower temperature and pressure. The LLDPE polymer produced by the copolymerization process has a narrower molecular weight distribution than ordinary LDPE, and has a linear structure that makes it have different rheological properties. The melt flow characteristics of LLDPE adapt to the requirements of the new process, especially the film extrusion process, which can produce high-quality LLDPE products.

[0067] The LDPE resin is low-density polyethylene, and low-density polyethylene usually uses ethylene as a m...

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Abstract

The invention discloses an anti-ultraviolet and anti-fog polyethylene greenhouse film and a preparation method thereof. The anti-ultraviolet and anti-fog polyethylene greenhouse film is prepared fromthe following raw materials: LLDPE resin, LDPE resin, EVA plastic and an anti-ultraviolet and anti-fog agent. The preparation method comprises the following steps: putting the raw materials into a high-speed mixing stirrer in proportion, mixing and stirring for 10 minutes at the speed of 300r / min and the temperature of 60 DEG C, extruding and granulating at the extrusion temperature of 170 DEG C,extruding and casting, cooling, trimming, pressurizing and rolling to obtain the anti-ultraviolet and anti-fog polyethylene greenhouse film. Glycerin monooleate is covalently grafted to the surface ofrGO / SiO2 throughfree radical reaction to obtain the anti-ultraviolet and anti-fogagent. Glycerin monooleate and active functional groups such as hydroxyl and carboxyl on the surface of the hybrid material rGO-SiO2 are subjected to a better chemical reaction, so that polyglycerol monooleate is not prone to moving to the surface of the film along with molecules to be continuously reduced; and the precipitation speed of adripping agent is further increased and the precipitation amount is further controlled through a method of combining inorganic matter grafting and grafting of the dripping agentandpolymer main chains.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an anti-ultraviolet and anti-fog polyethylene shed film and a preparation method thereof. Background technique [0002] Polyethylene (PE for short) is a thermoplastic resin obtained by polymerizing ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefins. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (minimum operating temperature can reach -100~-70°C), good chemical stability, and can withstand most acid and alkali erosion (not resistant to oxidative properties acid). Insoluble in common solvents at room temperature, low water absorption, excellent electrical insulation. [0003] The surface tension of polyethylene is 3.0×10 -2 Newton / meter, while the surface tension of water is 7.2×10 -2 Newton / meter, the difference in surface tension is too large, which causes dew droplets ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08K9/04C08K9/08C08K3/04C08K7/26C08J5/18
CPCC08J5/18C08J2323/08C08J2423/06C08J2423/08C08K9/04C08K9/08C08K3/042C08K7/26C08K2201/011C08K3/36C08L23/06C08L23/0853
Inventor 郑玉婴王禧
Owner FUZHOU UNIV
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