High-strength flame-retardant soil-covering dust screen prepared from waste PVC, method and application

A dust-proof mesh, high-strength technology, used in cleaning methods and utensils, chemical instruments and methods, fire-retardant and flame-retardant filament manufacturing, etc., can solve the problems of thick dust-proof mesh and poor heat resistance, and achieve flame retardant performance. Good, improved quality and yield, the effect of a wide range of material sources

Active Publication Date: 2021-03-02
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The soil-covering dust-proof net can cover most of the dust on the ground, but the traditional dust-proof net has thick wires, hard mesh, poor heat resistance, and the service life does not exceed one year

Method used

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  • High-strength flame-retardant soil-covering dust screen prepared from waste PVC, method and application
  • High-strength flame-retardant soil-covering dust screen prepared from waste PVC, method and application
  • High-strength flame-retardant soil-covering dust screen prepared from waste PVC, method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A high-strength flame-retardant dust-proof net for covering soil prepared by using waste PVC, characterized in that the dust-proof net for covering soil includes construction waste PVC, a heat stabilizer, a flame-retardant plasticizer, a light stabilizer and an antioxidant ; Among them, heat stabilizer, flame retardant plasticizer, light stabilizer and antioxidant are respectively 3%, 40%, 1% and 0.5% of the quality of construction waste PVC.

[0051] (1) According to the ratio, add construction waste PVC raw materials, heat stabilizers, light stabilizers, antioxidants and flame retardant plasticizers into the high-speed mixer in the order of solid first and then liquid for mixing, and the temperature is controlled at 140 ℃, the stirring time is about 3.5min, and the stirring speed is about 700r / min to make the solid and liquid contact completely and mix evenly.

[0052] (2) Cool the material in step (1) and put it into an internal mixer for masticating, and process the...

Embodiment 2

[0064] Compared with Example 1, the mixing temperature of PVC raw material, anti-aging agent, flame retardant plasticizer, etc. in step (1) was changed from 140°C to 135°C, and other conditions remained unchanged.

Embodiment 3

[0066] Compared with Example 1, the stirring time of PVC raw material, anti-aging agent, flame retardant plasticizer etc. in the step (1) is changed from 3.5min to 4min, and other conditions remain unchanged.

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Abstract

The invention relates to a high-strength flame-retardant soil-covering dust screen prepared from waste PVC, a method and application. The high-strength flame-retardant soil-covering dust screen comprises construction waste PVC, a heat stabilizer, a flame-retardant plasticizer, a light stabilizer and an antioxidant. The heat stabilizer, the flame-retardant plasticizer, the light stabilizer and theantioxidant respectively account for 2%-4%, 30%-50%, 0.05%-2% and 0.1%-1% of the mass of the construction waste PVC. Compared with the prior art, the high-strength flame-retardant soil-covering dust screen has the advantages of good anti-aging effect, good flame retardant property, moderate flexibility, light weight and the like; corresponding tailoring is conducted indifferent use occasions according to the requirements of consumers; the high-strength flame-retardant soil-covering dust screen can be used for various stock yards, improves the polluted environment, and saves coal and inorganicsolid waste powder; in addition, the high-strength flame-retardant soil-covering dust screen has certain super-hydrophilicity, dust can be easily washed by rainwater, the self-cleaning effect is achieved, no maintenance cost is needed, and the high-strength flame-retardant soil-covering dust screen can also be suitable for agriculture to improve the quality and yield of crops.

Description

technical field [0001] The invention belongs to the field of recycling and processing of construction waste polymer materials, and in particular relates to a high-strength flame-retardant dust-proof net made of waste PVC, a method and an application. Background technique [0002] While the population continues to grow and the industrial revolution develops, my country's real estate industry has also developed rapidly. However, behind the high-rise buildings are hundreds of millions of construction waste. Because people's understanding of construction waste disposal methods is far behind the speed of waste generation, most of the construction waste was buried or piled in the suburbs without any treatment in the early days, causing groundwater pollution. Resources are polluted, the proportion of dust and bacteria in the air is increasing, and the quality of the soil suffers. However, with the increasing awareness of various materials, people have begun to devote themselves t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/00C08K5/523C08K5/3475C08K5/134D01F1/07D01F1/10D01F6/48D01D5/08D03D15/283E04G21/00B08B15/02
CPCC08K5/00C08K5/523C08K5/3475C08K5/1345D01F1/07D01F1/10D01F6/48D01D5/08D03D15/00E04G21/00B08B15/02C08L2207/20C08L27/06
Inventor 杨正龙陈羽雯姚武
Owner TONGJI UNIV
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