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Urea packing bag inner film and processing method thereof

A technology for packaging bags and urea, applied in the field of plastic films, can solve problems such as shortening the service life, and achieve the effect of shortening the service life and excellent sealing

Inactive Publication Date: 2016-08-17
ANHUI CHAOHU SOUTH MEMBRANE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the plastic inner membrane needs to have excellent permeability resistance to prevent the penetration of urea molecules, thereby shortening the service life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] (1) Fully mix 35 parts of low density polyethylene, 10 parts of polypropylene and 5 parts of microcrystalline wax, microwave treatment at microwave frequency 2450MHz, power 800W for 10min, then add 8 parts of disproportionated rosin and 4 parts of guar gum, continue Microwave treatment 5min, obtains material I;

[0017] (2) Fully mix 6 parts of filled mineral powder and 2 parts of chlorinated paraffin, first heat to 50-60 ° C and grind for 10 minutes, then add 3 parts of trioctyl citrate and 2 parts of sorbitan monopalmitate, continue Heat to 75-85°C and keep grinding for 10 minutes to obtain material II;

[0018] (3) Add material I, material II, 6 parts of terpene resin, 6 parts of hydroxypropyl methylcellulose, 3 parts of glycerol monooleate, 2 parts of natural rubber and 0.5 part of sodium hexametaphosphate into the high-speed mixer , after fully mixing evenly, granulate in a twin-screw extruder at 140-150°C, and finally use a single-screw extrusion blow molding mac...

Embodiment 2

[0021] (1) Fully mix 40 parts of low-density polyethylene, 10 parts of polypropylene and 5 parts of microcrystalline wax, microwave at a microwave frequency of 2450MHz and a power of 800W for 10 minutes, then add 8 parts of disproportionated rosin and 4 parts of guar gum, and continue Microwave treatment 5min, obtains material I;

[0022] (2) Fully mix 8 parts of filled mineral powder and 2 parts of chlorinated paraffin, first heat to 50-60 ° C and grind for 10 minutes, then add 4 parts of trioctyl citrate and 1 part of sorbitan monopalmitate, continue Heat to 75-85°C and keep grinding for 10 minutes to obtain material II;

[0023] (3) Add material I, material II, 8 parts of terpene resin, 6 parts of hydroxypropyl methylcellulose, 3 parts of glycerol monooleate, 2 parts of natural rubber and 0.5 part of sodium hexametaphosphate into the high-speed mixer , after fully mixing evenly, granulate in a twin-screw extruder at 140-150°C, and finally use a single-screw extrusion blow ...

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PUM

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Abstract

The invention discloses a urea packing bag inner film and a processing method thereof and relates to the technical field of plastic films. The urea packing bag inner film is prepared from, by weight, 30-40 parts of low density polyethylene, 10-15 parts of polypropylene, 8-12 parts of disproportionated rosin, 6-10 parts of terpene resin, 6-10 parts of hydroxypropyl methyl cellulose, 5-8 parts of filling mineral powder, 5-8 parts of microcrystalline wax, 4-6 parts of guar gum, 3-5 parts of glyceryl monoleate, 3-5 parts of trioctyl citrate, 2-3 parts of natural rubber, 1-2 parts of sorbitan monopalmitate, 1-2 parts of chlorinated paraffin and 0.5-1 part of sodium hexametaphosphate. The inner film has excellent sealing performance, permeability resistance, aging resistance and stability, the situation that urea absorbs water in the air and cakes can be effectively prevented, the situation that urea permeates into the inner film and consequently the service life of the inner film is shortened can be prevented, and the situation that urea reacts with inner film ingredients and consequently the purity of urea is affected can be prevented.

Description

Technical field: [0001] The invention relates to the technical field of plastic films, in particular to an inner film of a urea packaging bag and a processing method thereof. Background technique: [0002] Urea, also known as carbonamide, is an organic compound composed of carbon, nitrogen, oxygen, and hydrogen, and is currently the nitrogen fertilizer with the highest nitrogen content. As a neutral fertilizer, urea is suitable for a variety of soils and plants. It is easy to store, easy to use, and has little damage to the soil. It is a chemical nitrogen fertilizer that is currently used in large quantities. Urea has strong hygroscopicity and will agglomerate after absorbing moisture, which will affect the original quality of urea. Therefore, moisture-proof should be paid attention to when packaging and storing. Fertilizer packaging bags generally use plastic woven bags, but because urea is hygroscopic and weakly alkaline, it is necessary to attach a layer of plastic inne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L93/04C08L45/00C08L1/28C08L91/06C08L5/00C08L7/00C08L83/04C08L33/02C08K13/06C08K7/12C08K5/103C08K5/11C08K3/32C08K9/02C08K3/34
CPCC08L23/06C08L2203/16C08L2205/02C08L2205/035C08L2207/066C08L23/12C08L93/04C08L45/00C08L1/284C08L91/06C08L5/00C08L7/00C08L83/04C08L33/02C08K13/06C08K7/12C08K5/103C08K5/11C08K3/32C08K9/02C08K3/346C08K3/34
Inventor 武道贵
Owner ANHUI CHAOHU SOUTH MEMBRANE IND
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