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A kind of modified polyethylene film material and preparation method thereof

A technology of polyethylene film and polyethylene resin, which is applied in the field of modified polyethylene film materials and its preparation, can solve the problems of film transparency reduction and film aging resistance not being significantly improved, so as to facilitate growth and development, improve Thermal insulation properties, light penetration, and low-cost effects

Active Publication Date: 2016-11-30
滁州格美特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the addition of nano-calcium carbonate, the transparency of the film is reduced, and because no auxiliary organic light stabilizer is added, the aging resistance of the film has not been significantly improved.

Method used

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  • A kind of modified polyethylene film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Dry 0.6 parts of titanium dioxide (with an average particle size of 20-80nm) at 105°C for 2.5 hours, and place the dried nano-titanium dioxide and 0.6 parts of vinyltrimethoxysilane in a ball mill for grinding and mixing for 25 minutes to complete Surface treatment and compounding into inorganic nanocomposites;

[0040] (2) Dry the above-mentioned inorganic nanocomposite material at 95°C for 1.5 hours, and then mix it with 50 parts of low-density polyethylene, 42 parts of linear low-density polyethylene, tris(1,2,2,6,6- Pentamethylpiperidine) ester 0.5 parts, [ -(3,5 di-tert-butyl 4-hydroxy-phenyl) propionate] pentaerythritol 0.4 parts, sodium aluminate 6 parts, sorbitan fatty acid ester 3.6 parts, zinc stearate 1.8 parts, polyethylene wax 1.5 parts Parts are placed together in a high-speed mixer for pre-mixing for 8 minutes at a speed of 1100r / min;

[0041] (3) Put the above pre-mixed materials on the extruder to make a polyethylene film with a thickness of 0.11...

Embodiment 2

[0044] (1) Dry 0.3 parts of silicon dioxide (with an average particle size of 20-80nm) at 95°C for 2 hours, and dry the dried nano silicon dioxide with 0.3 parts -(Methacryloyloxy)propyltrimethoxysilane was placed in a ball mill for grinding and mixing for 22 minutes to complete the surface treatment and compound into an inorganic nanocomposite material;

[0045] (2) Dry the above-mentioned inorganic nanocomposite material at 90°C for 2 hours, and then mix it with 50 parts of low-density polyethylene, 36 parts of linear low-density polyethylene, 4-benzoyloxy-2,2,6, 0.4 parts of 6-tetramethylpiperidine, [ -(3,5 di-tert-butyl 4-hydroxy-phenyl) propionate] pentaerythritol 0.1 part, magnesium sulfate 5 parts, stearic acid monoglyceride 3.0 parts, N,N'-ethylene distearic acid 1.5 parts of amine and 1.2 parts of polyethylene wax are placed together in a high-speed mixer for pre-mixing for 5 minutes at a speed of 950r / min;

[0046](3) Put the above pre-mixed materials on the extr...

Embodiment 3

[0049] (1) Dry 0.5 parts of titanium dioxide (with an average particle size of 20-80nm) at 110°C for 2.4 hours, and place the dried nano-titanium dioxide and 0.5 parts of vinyltrimethoxysilane in a ball mill for grinding and mixing for 20 minutes to complete Surface treatment and compounding into inorganic nanocomposites;

[0050] (2) Dry the above-mentioned inorganic nanocomposite material at 85°C for 1.8 hours, and then mix with 50 parts of low-density polyethylene, 30 parts of linear low-density polyethylene, 2-(2'-hydroxy-3',5'- Di-tert-phenyl)-5-benzotriazole chloride 0.8 parts, stearyl thiodipropionate 0.6 parts, sodium aluminate 10 parts, sorbitan fatty acid ester 4.8 parts, zinc stearate 1.8 parts, Put 1.0 parts of paraffin together in a high-speed mixer for pre-mixing for 6 minutes at a speed of 800r / min;

[0051] (3) Put the above pre-mixed materials on the extruder to make a polyethylene film with a thickness of 0.10-0.12mm by blown film method; the processing temp...

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Abstract

The invention discloses a modified polyethylene film material, which is made of the following components in parts by weight: 80-110 parts of polyethylene resin, 0.4-0.8 parts of light stabilizer, 0.3-1.0 parts of nanometer powder, anti- 0.1-0.8 parts of oxygen agent, 5-10 parts of heat preservation additive, 3-6 parts of anti-fogging agent, 0.3-1.0 part of silane coupling agent, 1.5-2.0 parts of lubricant, 1-2 parts of processing modifier. The invention also discloses a preparation method of the modified polyethylene film material. The modified polyethylene film provided by the invention has the advantages of high light transmittance, good thermal insulation, high physical and mechanical properties, excellent weather resistance, etc., and is low in cost, and significantly improves the comprehensive performance of the plastic film. It can better adapt to the requirements of crop growth, improve heat preservation properties and light penetration, promote good growth and development of crops, improve crop yield and quality, and can be made into high-quality agricultural greenhouse films, which have good prospects for popularization and application.

Description

technical field [0001] The invention relates to the technical field of polymer modification, in particular to a modified polyethylene film material and a preparation method thereof. Background technique [0002] With the development of agriculture, agricultural plastic film has become an essential and important means of production to promote the more efficient development of agriculture. From the cold winter to the early spring in northern my country, the sunshine time is short and the atmospheric temperature is low. In order to increase the crop yield, the demand for agricultural greenhouse films with excellent performance continues to increase. Traditional agricultural greenhouse films mainly use polyvinyl chloride resin as raw material. Although polyvinyl chloride film is more resistant to weathering and aging, due to the large amount of plasticizer contained, the volatilization of plasticizer during processing and use and the polyvinyl chloride resin itself will cause e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K9/06C08K3/22C08K3/36B29C49/04B29B13/06B29B13/10
Inventor 郭学林
Owner 滁州格美特科技有限公司