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Composite material made from paper-making sludge and waste plastic and its prep. method

A technology of papermaking sludge and composite materials, applied in artificial islands, underwater structures, buildings, etc., can solve the problems of complex manufacturing process and cost increase, and achieve the effect of reducing costs, saving ferrous metal resources and energy

Inactive Publication Date: 2006-11-08
上海挪亚环境资源开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material comprehensively utilizes old plastics and fly ash. In this method, in order to increase the strength of the composite material, a certain proportion of fibers and corresponding modifiers need to be added, which increases the cost and makes the manufacturing process more complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Take 40 kg of dried and pulverized papermaking sludge powder with a particle size of 100-300 mesh, 30 kg of recycled waste PP plastics, and 100 g of zinc stearate into the agglomerator, and heat up to 150-175°C for agglomeration.

[0036] Put the above granules into a high-speed mixer, add 500 grams of lubricant, 100 grams of plasticizer, 10 grams of stabilizer, and 100 grams of coloring agent and mix for 20 minutes, then add this mixture into the hopper of a conical twin-screw machine, squeeze Injection molding to make manhole covers, tree grates, water grates and other profiles.

[0037] The performance of the measured profile is as follows: compressive strength: 31MPa; flexural strength: 17MPa; impact toughness: 95Kj / m 3 Freeze-thaw resistance compressive strength loss rate (-20°C): 0.38%; relative change rate of artificial aging flexural strength: 3.2%; relative change rate of thermal aging flexural strength (80°C): 0.38%.

Embodiment 2

[0039] Take 37 kg of dried and pulverized papermaking sludge powder with a particle size of 100-300 mesh, 30 kg of recycled waste PP plastics, 5 kg of PE plastics, and 70 grams of zinc stearate into the agglomerator, and heat up to 140- Agglomeration was performed at 160°C.

[0040] Put the above-mentioned pellets into a high-speed mixer, add 300 grams of lubricant, 10 grams of stabilizer, and 100 grams of colorant and mix for 20 minutes, then add the mixture into the hopper of a conical twin-screw machine, extrude and injection mold it, and make Tree grate, water grate and other profiles.

Embodiment 3

[0042] Take 26 kg of dried and pulverized papermaking sludge powder with a particle size of 100-300 mesh, 8 kg of recycled waste PVC plastics, 4 kg of PE plastics, 4 kg of ABS plastics, and 100 grams of zinc stearate into the agglomerator , heat up to 130-150°C for pelletizing.

[0043]Put the above into a high-speed mixer, add 200 grams of lubricant, 100 grams of plasticizer, 20 grams of stabilizer, and 50 grams of colorant and mix for 10 minutes, then add the mixed material into the hopper of a conical twin-screw machine to prepare It is made into a thermoplastic blank, and then hot-pressed in a mold to make profiles such as manhole covers, tree grates, and water grates.

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Abstract

The invention relates to a composite material made by using manufacturing sludge and compatible waste plastics and a manufacturing method thereof, and also relates to forming materials for water grates, tree grates and manhole covers made by using the composite material.

Description

[0001] The invention relates to a composite material made of papermaking industry, especially waste paper recycling industrial waste (papermaking sludge) and waste plastic resin, and manhole covers, tree grates, water grates and the like made of this material. Background of the invention [0002] In order to protect the dwindling forest spontaneous combustion resources, it is an inevitable trend in the paper industry to use waste paper to produce recycled paper. However, a large amount of waste is generated in the process of producing recycled paper and paper, which brings serious environmental problems. With the increasingly stringent national environmental protection policies, the reasonable disposal of waste from the paper industry has become the focus of more and more attention. [0003] "Energy-saving Technology for Pulping and Papermaking" published by China Light Industry Press in November 1999 describes the treatment of waste water and waste residue in waste paper recy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L33/00C08K11/00E02D29/14
Inventor 韩晓伟
Owner 上海挪亚环境资源开发有限公司