Preparation method of fly ash modified waste plastic composite material

A technology of waste plastics and composite materials, which is applied in the field of preparation of fly ash modified waste plastic composite materials, can solve the problems of increasing the production cost of modified composite materials, physical injury of operators, cumbersome processing process, etc., and achieves a good market Competition and use prospects, simple and easy-to-operate methods, and the effect of increasing added value

Active Publication Date: 2015-02-18
LINZIZHENGHUA ACCESSORY INGREDIENT ZIBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to relevant public documents and patents, such as CN102532955A report, when using fly ash to modify the properties of waste plastic composite materials, it needs to be subjected to physical treatment such as grinding and pulverization, ultrasonic dispersion, and chemical treatment with a coupling agent. The use of coupling agent pollutes the environment, harms the operator's body and increases the production cost of the corresponding modified composite material

Method used

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  • Preparation method of fly ash modified waste plastic composite material
  • Preparation method of fly ash modified waste plastic composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] (1) Directly pass the fly ash industrial waste slag of the power plant through a sieve, and collect the fly ash whose particle size is above 200 mesh for subsequent use;

[0029] (2) Mix waste plastics, light stabilizers, lubricants, binders, glass fibers, and fly ash in a weight ratio of 60:0.001:3:10:12:150 to obtain a mixture;

[0030] (3) Adjust the temperature of the mill to 170° C., and melt and blend the mixture in step (2) for 25 minutes to obtain a fly ash-modified waste plastic composite material.

[0031] Among them, high-density polyethylene is selected for waste plastics, bis(2.2.6.6-tetramethyl-4-piperidinyl) sebacate is selected for light stabilizer, polyethylene wax is selected for lubricant, polyamide resin is selected for binder, glass The fiber is alkali-free chopped strand glass fiber.

[0032] Adjust the temperature of the flat vulcanizer to 200°C, and press the produced fly ash modified waste plastic composite material into tablets for 5 minutes t...

Embodiment 2

[0035] (1) Directly pass the fly ash industrial waste slag of the power plant through a sieve, and collect the fly ash whose particle size is above 200 mesh for subsequent use;

[0036] (2) Mix waste plastics, light stabilizers, lubricants, binders, glass fibers, and fly ash in a weight ratio of 60:0.002:5:12:15:160 to obtain a mixture;

[0037] (3) Adjust the temperature of the mill to 190° C., and melt and blend the mixture in step (2) for 35 minutes to obtain a fly ash-modified waste plastic composite material.

[0038] Among them, waste plastics should be mixed with low-density polyethylene and polypropylene at a mass ratio of 1:1, bis(1.2.2.6.6-pentamethyl-4-piperidinyl) sebacate should be selected as light stabilizer, and polystyrene should be selected as lubricant. Ethylene wax, stearic acid and butyl stearate are mixed in a mass ratio of 1:2:5, the binder is polyamide resin, and the glass fiber is alkali-free chopped glass fiber.

[0039] Using the method of Example 1...

Embodiment 3

[0041] (1) Directly pass the fly ash industrial waste slag of the power plant through a sieve, and collect the fly ash whose particle size is above 200 mesh for subsequent use;

[0042] (2) Mix waste plastics, light stabilizers, lubricants, binders, glass fibers, and fly ash in a weight ratio of 60:0.001:8:10:13:160 to obtain a mixture;

[0043] (3) Adjust the temperature of the mill to 210° C., and melt and blend the mixture in step (2) for 40 minutes to obtain a fly ash-modified waste plastic composite material.

[0044] Among them, waste plastics are mixed with high-density polyethylene and low-density polyethylene at a mass ratio of 3:5, and the light stabilizer is 1-methyl-8-(1.2.2.6.6-pentamethyl-4-piperidinyl)decane The diacid ester, the lubricant selection butyl stearate and ethylene bis stearamide are mixed in a mass ratio of 5:3, the binder is a polyamide resin, and the glass fiber is an alkali-free chopped glass fiber.

[0045] Using the method of Example 1 to meas...

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Abstract

The invention provides a preparation method of a fly ash modified waste plastic composite material, belonging to the technical field of high-polymer composite materials. The preparation method comprises the following steps: proportionally mixing fly ash, waste plastic, adhesive, lubricant, light stabilizer and glass fiber, and carrying out melt blending in an open mill to obtain the composite material. The adhesive is adopted to enhance the bonding capacity of the components in the composite material, and is energy-saving and environment-friendly; and the method is simple and easy to operate, and is suitable for large-scale industrial production. The composite material has favorable bending property and tensile property, and is suitable for manufacturing general engineering plastics in the fields of construction materials, tubes and plates. Compared with the polyethylene or polypropylene, the production cost can be lowered by 45-60%, and the method has favorable market competition and use prospects.

Description

technical field [0001] The invention relates to a preparation method for recycling plastics to prepare composite materials, in particular to a preparation method for fly ash modified waste plastic composite materials, which belongs to the technical field of polymer composite materials. Background technique [0002] Fly ash is the fine ash collected from the flue gas of coal combustion and is the main industrial waste discharged from coal-fired power plants. As of 2010, the total amount of fly ash piled up in my country over the years has reached more than 1 billion tons, and the current utilization rate of fly ash has only reached about 30% of its total discharge, and its utilization field corresponds to some relatively low-end Building products such as insulation bricks, etc. The main chemical composition of fly ash is 49.5% SiO through elemental analysis 2 , 25.3% Al 2 o 3 , 6.9% Fe 2 o 3 ;Scanning electron microscopy test shows that its particle shape and surface str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/12C08L77/00C08K13/04C08K7/14C08K3/36C08K5/09C08K5/101C08L23/08
CPCC08L23/06C08L2205/02C08L2205/025C08L2205/03C08L2207/062C08L2207/066C08L77/00C08K13/08C08K11/005C08K5/3435C08K7/14C08L23/12C08K5/09C08K5/101C08K5/20
Inventor 沈智陈唐建翟志强侯永正翟少华
Owner LINZIZHENGHUA ACCESSORY INGREDIENT ZIBO
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