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Preparation method of polyethylene composite material for storage tanks

A composite material and polyethylene technology, which is applied in the field of preparing polyethylene composite materials for storage tanks, can solve problems such as poor antibacterial performance, and achieve the effects of lasting antibacterial performance, good heat resistance and improving antibacterial performance.

Inactive Publication Date: 2015-11-11
SUZHOU HONGHENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this special material is that the antibacterial performance is poor, and it cannot be used in occasions that require high antibacterial performance, such as food, medicine, and biological test supplies.

Method used

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  • Preparation method of polyethylene composite material for storage tanks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of polyethylene composite material for storage tanks, the steps are as follows:

[0027] (1) Break the Humulus leaves and dissolve them in petroleum ether. The mass volume ratio of Humulus leaves and petroleum ether is 0.02g / ml, put them in a constant temperature water bath with a temperature of 45°C for reflux extraction for 2 hours, and cool naturally to room temperature After filtering, the filter residue was dissolved in methanol for reflux extraction for 3 times, and the extraction time was 2 hours each time. Ethyl ester extraction 3 times, the combined extracts were concentrated by rotary evaporation to obtain the Humulus japonicus extract;

[0028] (2) Stir and mix the Humulus japonicus extract and titanium dioxide microspheres with a weight ratio of 4:5 for 1 hour, move to a microwave irradiator and irradiate for 3 hours to obtain a microsphere mixture;

[0029] (3) The microsphere mixture that step (2) obtains is added in the ethanol solut...

Embodiment 2

[0033] A preparation method of polyethylene composite material for storage tanks, the steps are as follows:

[0034] (1) Break the Humulus leaves and dissolve them in petroleum ether. The mass volume ratio of Humulus leaves and petroleum ether is 0.02g / ml, put them in a constant temperature water bath with a temperature of 45°C for reflux extraction for 2 hours, and cool naturally to room temperature After filtration, the filter residue was dissolved in methanol for reflux extraction for 3 times, and the extraction time was 2 hours each time. The filtrates were combined, evaporated to dryness and dissolved in dilute sulfuric acid with a mass fraction of 2%, and filtered after reflux extraction for 2.5 hours. Ethyl ester extraction 3 times, the combined extracts were concentrated by rotary evaporation to obtain the Humulus japonicus extract;

[0035] (2) Stir and mix the Humulus japonicus extract and titanium dioxide microspheres with a weight ratio of 4:5 for 1 hour, move to a...

Embodiment 3

[0040] A preparation method of polyethylene composite material for storage tanks, the steps are as follows:

[0041] (1) Break the Humulus leaves and dissolve them in petroleum ether. The mass volume ratio of Humulus leaves and petroleum ether is 0.02g / ml, put them in a constant temperature water bath with a temperature of 45°C for reflux extraction for 2 hours, and cool naturally to room temperature After filtering, the filter residue was dissolved in methanol for reflux extraction for 3 times, and the extraction time was 2 hours each time. Ethyl ester extraction 3 times, the combined extracts were concentrated by rotary evaporation to obtain the Humulus japonicus extract;

[0042] (2) Stir and mix the Humulus japonicus extract and titanium dioxide microspheres with a weight ratio of 4:5 for 1 hour, move to a microwave irradiator and irradiate for 3 hours to obtain a microsphere mixture;

[0043] (3) The microsphere mixture that step (2) obtains is added in the ethanol solut...

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Abstract

The invention provides a preparation method of a polyethylene composite material for storage tanks, which comprises the following steps: (1) smashing Humulus japonicus leaf, dissolving in petroleum ether, extracting under reflux, filtering, extracting the filter residue under reflux, merging the filtrates, drying by distillation, dissolving in dilute sulfuric acid, extracting under reflux, filtering, extracting the filtrate, merging, and concentrating by rotary evaporation to obtain a Humulus japonicus extract; (2) mixing the Humulus japonicus extract with titanium dioxide microspheres to obtain a microsphere mixture; (3) adding the microsphere mixture into a silane coupling agent to obtain a coupling microsphere mixture; (4) heating the coupling microsphere mixture, water and methacrylic acid, and adding ammonium persulfate to obtain a grafted microsphere mixture; and (5) uniformly mixing a polyethylene resin, a toughener, a stabilizer, a nucleator and the grafted microsphere polymer, transferring into a double screw extruder, and carrying out extrusion granulation to obtain the polyethylene composite material for storage tanks. The composite material has favorable mold resistance, and can be used for occasions with higher requirements for mold resistance.

Description

Technical field: [0001] The invention relates to a polyethylene composite material, in particular to a preparation method of a polyethylene composite material for storage tanks. Background technique: [0002] Storage tanks are containers for storing acids, alkalis, alcohols, gases, liquids and other chemical substances. According to different materials, they are roughly divided into: polyethylene storage tanks, polypropylene storage tanks, glass fiber reinforced plastic storage tanks, ceramic storage tanks, and rubber storage tanks. , stainless steel storage tanks, etc. The English abbreviation of polyethylene is PE, the highest application temperature is 60°C for low-density polyethylene, 70°C for high-density polyethylene, and the lowest application temperature is -70°C. Impact, corrosion resistance, long life and other advantages. It makes up for the shortcomings of poor rigidity, pressure resistance, and temperature difference resistance of all-plastic rotomoulding sto...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/00C08L51/10C08K3/34C08K3/22C08K5/13C08F292/00
CPCC08L23/06C08F292/00C08L2205/02C08L2205/03C08L23/00C08L51/10C08K3/34C08K3/22C08K5/13
Inventor 矫磊
Owner SUZHOU HONGHENG CHEM
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