Corrosion-resistant PE composite material for septic tank and preparation method of corrosion-resistant PE composite material

A composite material and corrosion-resistant technology, which is applied in the field of polyethylene materials, can solve the problems of septic tank leakage, polluted urban underground water supply pipes, and tilted buildings, and achieves good corrosion resistance and abrasion resistance, and enhances compatibility. , the effect of reducing the surface energy

Pending Publication Date: 2021-04-06
FUJIAN RESINTECH PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to problems in design, construction, use, and management of brick and concrete septic tanks, more than 95% of the septic tanks began to leak after 1-2 years of use. The problem seriously pollutes underground drinking water and urban underground water supply pipes, and even more serious will cause buildings to tilt to varying degrees

Method used

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  • Corrosion-resistant PE composite material for septic tank and preparation method of corrosion-resistant PE composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a corrosion-resistant PE composite material for septic tanks, comprising the following steps:

[0022] S1: Put 45 parts of linear low density polyethylene, 18 parts of polyethylene glycol gel powder, 2 parts of dibutyl phthalate, 2 parts of polyethylene wax and 2 parts of pentaerythritol tetrapropionate into a high-speed mixer Mix for 4-6min to obtain a mixture of components;

[0023] S2: Add the above-mentioned component mixture from the hopper to the twin-screw extruder, melt, extrude, cool, shape and slice through the twin-screw extruder to obtain a corrosion-resistant PE composite material;

[0024] Among them, the twin-screw extruder is divided into 4 zones for processing temperature:

[0025] The temperature of the first zone is 200-230°C, the temperature of the second zone is 250-300°C, the temperature of the third zone is 250-300°C, the temperature of the fourth zone is 280-320°C, the nozzle temperature is 400°C, and the mold temperature...

Embodiment 2

[0030] A preparation method of a corrosion-resistant PE composite material for septic tanks, comprising the following steps:

[0031] S1: Put 40 parts of linear low density polyethylene, 15 parts of polyethylene glycol gel powder, 1 part of dibutyl phthalate, 1 part of polyethylene wax and 1 part of pentaerythritol tetrapropionate into a high-speed mixer Mix for 4-6min to obtain a mixture of components;

[0032] S2: Add the above-mentioned component mixture from the hopper to the twin-screw extruder, melt, extrude, cool, shape and slice through the twin-screw extruder to obtain a corrosion-resistant PE composite material;

[0033] Among them, the twin-screw extruder is divided into 4 zones for processing temperature:

[0034] The temperature of the first zone is 200-230°C, the temperature of the second zone is 250-300°C, the temperature of the third zone is 250-300°C, the temperature of the fourth zone is 280-320°C, the nozzle temperature is 400°C, and the mold temperature is...

Embodiment 3

[0039] A preparation method of a corrosion-resistant PE composite material for septic tanks, comprising the following steps:

[0040] S1: Put 50 parts of linear low density polyethylene, 20 parts of polyethylene glycol gel powder, 3 parts of dibutyl phthalate, 3 parts of polyethylene wax and 3 parts of pentaerythritol tetrapropionate into a high-speed mixer Mix for 4-6min to obtain a mixture of components;

[0041] S2: Add the above-mentioned component mixture from the hopper to the twin-screw extruder, melt, extrude, cool, shape and slice through the twin-screw extruder to obtain a corrosion-resistant PE composite material;

[0042] Among them, the twin-screw extruder is divided into 4 zones for processing temperature:

[0043] The temperature of the first zone is 200-230°C, the temperature of the second zone is 250-300°C, the temperature of the third zone is 250-300°C, the temperature of the fourth zone is 280-320°C, the nozzle temperature is 400°C, and the mold temperature...

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Abstract

The invention discloses a corrosion-resistant PE composite material for a septic tank and a preparation method of the corrosion-resistant PE composite material. The corrosion-resistant PE composite material for the septic tank comprises the following components in parts by weight: 40-50 parts of linear low-density polyethylene, 15-20 parts of polyethylene glycol gel powder, 1-3 parts of a plasticizer, 1-3 parts of a lubricant and 1-3 parts of an antioxidant. The corrosion-resistant PE composite material for the septic tank has good corrosion resistance, can resist corrosion of various chemical media, especially acid, alkali, salt and oil, and is high in environmental adaptability, the preparation method is simple and easy to operate, and the corrosion-resistant PE composite material has good market prospects.

Description

technical field [0001] The invention relates to the technical field of polyethylene materials, in particular to a corrosion-resistant PE composite material for septic tanks and a preparation method thereof. Background technique [0002] As a kind of interception set up to avoid blockage of pipelines, septic tanks play an active role in settling large particles of impurities in sewage, preventing sewage pipelines from clogging, reducing pipeline burial depth, and protecting the environment. However, due to problems in design, construction, use, and management of brick and concrete septic tanks, more than 95% of the septic tanks began to leak after 1-2 years of use. The problem has seriously polluted underground drinking water and urban underground water supply pipes, and more serious ones will cause buildings to tilt to varying degrees. Contents of the invention [0003] In view of this, the object of the present invention is to provide a corrosion-resistant PE composite m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L23/06C08L71/02C08K5/12C08K5/103C08K3/22
CPCC08L23/0815C08L2205/03C08K2201/011C08K2003/2241C08L23/06C08L71/02C08K5/12C08K5/103
Inventor 郑文庆
Owner FUJIAN RESINTECH PLASTICS
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