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Anti-tear and anti-puncture greenhouse film and preparation method thereof

A greenhouse film and tear-resistant technology, applied in the field of plastic film, can solve the problems of easy puncture, shortened service life, weak tear resistance of greenhouse film, etc.

Inactive Publication Date: 2016-10-26
广东汇发塑业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current greenhouse film is mainly made of PE film, which has weak tear resistance, is easy to be punctured, and has a short lifespan of about 1 to 2 years.
BOPET (Biaxially Oriented Polyester Film) is a new type of polymer film material with high mechanical strength, good optical properties, wide temperature range and long service life. Its excellent comprehensive performance has attracted the attention of relevant parties, but There is an important disadvantage, that is, poor aging resistance, especially easy to be aged by light impression, thus shortening the service life

Method used

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  • Anti-tear and anti-puncture greenhouse film and preparation method thereof
  • Anti-tear and anti-puncture greenhouse film and preparation method thereof
  • Anti-tear and anti-puncture greenhouse film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A tear-resistant and puncture-resistant greenhouse film of the present embodiment is composed of the following components by weight:

[0057] LLDPE 18 parts

[0058] LDPE 20 parts

[0059] BOPET 65 servings

[0060] PE antioxidant 10 parts

[0061] Ultraviolet absorber UV-531 0.8 parts

[0062] Titanium oxide or carbon black 0.2 parts

[0063] dripping agent 3 parts

[0064] Surfactant 4 parts

[0065] Toughener 5 parts

[0066] Metallocene polyethylene 30 parts

[0067] Polyphthalamide 1 part.

[0068] The preparation method of above-mentioned tear-resistant puncture greenhouse film is as follows:

[0069] (1) Feeding: Add the ingredients of the above-mentioned tear-resistant and puncture-resistant greenhouse film into the mixer in proportion;

[0070] (2) Stir evenly: the mixer fully mixes the materials added in step (1) and stirs evenly;

[0071] (3) Drying: Dry the material evenly stirred in step (2) until the moisture content is below 45ppm;

[0072] (4...

Embodiment 2

[0079] The main technical solutions of this embodiment are basically the same as those of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The difference between this example and Example 1 is that, among the components of the tear-resistant and puncture-resistant greenhouse film, the weight part of LDPE is 30 parts by weight, the weight part of PE antioxidant is 20 parts, and the weight part of metallocene polyethylene is 40 parts.

[0080] The film property test data of table 2 embodiment 2:

[0081]

Embodiment 3

[0083] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. The difference between this example and Example 1 is that, among the ingredients of the tear-resistant and puncture-resistant greenhouse film, the parts by weight of LDPE are 25 parts by weight, the parts by weight of PE antioxidant are 15 parts, and the parts by weight of metallocene polyethylene are 35 parts .

[0084] The film property test data of table 3 embodiment 3:

[0085]

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PUM

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Abstract

The invention provides an anti-tear and anti-puncture greenhouse film. The greenhouse film is prepared from, by weight, 18 parts of LLDPE, 20-30 parts of LDPE, 65 parts of BOPET, 10-20 parts of PE antioxidant, 0.8 part of ultraviolet light absorber UV-531, 0.2 part of titanium oxide or carbon black, 3 parts of dripping agent, 4 parts of surfactant, 5 parts of flexibilizer, 30-40 parts of metallocene polyethylene and 1 part of polyphthalamide. By means of composition formula optimization, the anti-tear and anti-puncture greenhouse film which is good in anti-tear, anti-puncture and anti-atomization effects, excellent in physical and mechanical properties and long in service life is obtained by means of copolymerization of a base material BOPET taken as the principal material and cooperation with LLDPE, LDPE and metallocene polyethylene. A preparation method of the anti-tear and anti-puncture greenhouse film comprises the steps of material feeding, uniform stirring, drying, extrusion-blown molding conducted through an extruder, longitudinal stretching, transverse stretching and finished product coiling. The preparation method of the anti-tear and anti-puncture greenhouse film is simple and reasonable in step, and the prepared finished product is resistant to tear, puncture and atomization and long in service life.

Description

technical field [0001] The invention relates to the technical field of plastic films, in particular to a tear-resistant and puncture-resistant greenhouse film and a preparation method thereof. Background technique [0002] There are mainly four kinds of greenhouse films commonly used in my country: the first is polyvinyl chloride (PVC) film; the second is polyethylene (PE) film; the third is ethylene-vinyl acetate copolymer film; The first is a light-adjustable agricultural film. These types of shed films have similarities and differences in properties, so the use effects are also different. The current greenhouse film is mainly made of PE film, which has weak tear resistance, is easy to be punctured, and has a short lifespan of about 1 to 2 years. BOPET (Biaxially Oriented Polyester Film) is a new type of polymer film material with high mechanical strength, good optical properties, wide temperature range and long service life. Its excellent comprehensive performance has at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08L23/06C08K13/02C08K3/22C08K3/04C08K5/17C08K5/00B29D7/01
CPCC08L67/02B29D7/01C08J5/18C08J2367/02C08J2423/08C08L2201/08C08L2203/16C08L2205/025C08L2205/035C08L2207/066C08L23/0815C08L23/06C08K13/02C08K2003/2241C08K3/04C08K5/17C08K5/0091
Inventor 王洪琼蔡彦杰黄可晟
Owner 广东汇发塑业科技有限公司
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