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Modified composition of waste plastics and flyash

A technology of waste plastics and fly ash, which is applied in the field of modified compositions of waste plastics and fly ash, can solve the problems of steel resource consumption, high production cost, air pollution, etc., and achieve the effect of cost reduction

Inactive Publication Date: 2004-03-24
鲍振林 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An application publication with the Chinese patent number "00112189.8" discloses an invention titled "Water supply and drainage inspection manhole cover, seat and its production process". Inclusions include waste plastics, fly ash, flame retardants, reinforcing agents and anti-aging agents, etc. Although the manhole covers and seats made of them have high strength, their production costs are high, their weight is large, and steel resources are consumed
In addition, strengthening agents (glass fiber or ACR) and anti-aging agents need to be added to improve oxidation resistance and strength, thereby further increasing the production cost of well covers and seats.
Another Chinese Patent No. "00133325.9" application publication discloses the name "Molding Production Method of Waste Plastics and Fly Ash Composite Products", and the components of the composite products involved include surface treatment agents, toughening agents , coupling agent, anti-aging agent and other chemical additives. These chemical additives will be heated and decomposed during the production process of the product, polluting the air. In addition, due to the addition of these chemical additives and the required number of parts, Further increase the production cost of the product and the weight of the product itself

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh waste plastics according to mass ratio 100

[0015] Fly Ash 25

[0016] Nanoscale powder calcium carbonate 10

[0017] Flame retardant 3

[0018] Waste rubber powder 2

[0019] plastic paint 2

[0020] Fly ash screening particle size ≤ 147 × 10 -6 m, the particle size of nanoscale powder calcium carbonate is 60×10 -9 -100×10 -9 m, and after surface treatment. It can be used to prepare thin-walled products such as boxes, plastic doors and windows, and junction boxes. Mix and stir them evenly, heat in the extruder at 100-280°C until the plastic melts, put it into the mold, pressurize it with a 250-350 ton press for 15-20 minutes, cool and demould.

Embodiment 2

[0022] Weigh waste plastics according to mass ratio 100

[0023] Fly Ash 50

[0024] Nanoscale powder calcium carbonate 15

[0025] Flame retardant 3

[0026] Waste rubber powder 5

[0027] Fly ash screening particle size ≤ 147 × 10 -6 m, can be used to prepare thin-walled products such as boxes, plastic doors and windows, junction boxes, etc. Mix and stir them evenly, heat in the extruder at 100-280°C until the plastic melts, put it into the mold, pressurize it with a 250-350 ton press for 15-20 minutes, cool and demould.

Embodiment 3

[0029] Weigh waste plastics according to mass ratio 100

[0030] Fly Ash 100

[0031] Nanoscale powder calcium carbonate 25

[0032] Flame retardant 3

[0033] Waste rubber powder 8

[0034] Fly ash screening particle size ≤ 316.7×10 -6 m, the particle size of nanoscale powder calcium carbonate is 60×10 -9 -100×10 -9 m, and after surface treatment. It can be used to prepare thick-walled and large-scale products such as drainage manhole covers, seats, well grates, road isolation piers, roadsides, and highway guardrails. Mix them evenly, heat 100-280°C in the extruder until the plastic melts, put it into the mold, pressurize it with a 400-500 ton press for 15-20 minutes, cool and demould, and its compressive strength is 30-45Mpa, the bending strength is 25-35Mpa, the tensile strength is 20-30Mpa, the heat-resistant temperature is 80℃-150℃, and the cold-resistant temperature is -20℃~-40℃.

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Abstract

The present invention relates to a modified composite made up by using waste and old plastics and fly ash, and is characterized by that in said composite the nano-grade powder body calcium carbonate for modification is added, and its composition and mass mixing ratio are as follows: waste and old plastics: flyash: nano-grade powder body calcium carbonate; fire-resisting agent; waste and old rubber powder=100:(25-200):(10-30):3:(3-14). It can obviously reduce cost and weight of said composite product.

Description

technical field [0001] The invention belongs to a modified composition of waste plastics and fly ash, which can be made into manhole covers, roadsides, road isolation piers and other products. Background technique [0002] In recent years, with the rapid development of the electric power industry and the chemical industry, the fly ash, waste plastics and rubber produced by them have seriously polluted the environment, and are now mostly used to develop high value-added products, such as manhole covers, roadsides, and road isolation piers Etc., not only make waste be utilized, but also reduce environmental pollution. An application publication with the Chinese patent number "00112189.8" discloses an invention titled "Water supply and drainage inspection manhole cover, seat and its production process". Inclusions include waste plastics, fly ash, flame retardants, reinforcing agents, and anti-aging agents. Although the manhole covers and seats made of them have high strength, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K3/26C08L101/00
Inventor 鲍振林鲍志刚鲍亚婷
Owner 鲍振林