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Method for preparing building mould using various solid wastes

A technology for building formwork and waste slag, which is applied in the field of melt molding or calendering to prepare building formwork, and can solve the problems of not involving abundant fly ash and not utilizing fly ash and the like.

Inactive Publication Date: 2009-03-11
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent is limited to the use of PE in the preparation of wood-plastic products for non-wood fiber applications, and does not use fly ash and waste slag. For example, CN1464009A, CN1482166A, CN1445285A, CN1603088A, CN1740234A, etc. disclose wood powder + thermoplastic + special additives and Other additives to prepare wood-plastic products, but not involving the application of rich sources of fly ash and crop straw

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The specific ratio of building formwork in parts by weight is: 30 parts of corn stalk fiber, 25 parts of fly ash, 5 parts of waste slag, 2 parts of anionic surfactant, 45 parts of waste plastic PP, flame retardant decabromobiphenyl 9 parts of ether / antimony oxide, 5 parts of regenerated rubber powder, 1 part of stearic acid, 2 parts of silane coupling agent, 1 part of antioxidant 1010, 1.5 parts of paraffin, 1.5 parts of antistatic agent, 1.5 parts of carbon black, 1.5 parts of plasticizer dioctyl phthalate.

[0028] Preparation method: According to the proportion, the above materials are blended, plasticized and granulated at 185°C, and molded or calendered at a temperature of 185°C to form a new building formwork;

[0029] The preparation method of the straw fiber is as follows: crush the corn stalk, sorghum stalk, wheat, rice stalk or cotton stalk of the straw fiber, extrude at 200° C. under 1.5 atmospheric pressure, comb out hemicellulose and lignin, and use Sodium...

Embodiment 2

[0031] The specific ratio of building formwork in parts by weight is: 30 parts of wood fiber, 15 parts of fly ash, 10 parts of waste slag, 5 parts of recycled rubber powder, 35 parts of waste plastic (PVC), flame retardant decabromodiphenyl ether / 15 parts of antimony oxide, 1.5 parts of paraffin, 1.5 parts of stearic acid, 2 parts of anionic surfactant, 1 part of titanate coupling agent, 1 part of antistatic agent, 1 part of antioxidant 1010, 1 part of carbon black , 1 part of plasticizer dioctyl phthalate.

[0032] Preparation method: According to the proportion, the above materials are blended, plasticized and granulated at 170°C, and molded or calendered at a temperature of 180°C to form a new building formwork;

[0033] The preparation method of described straw fiber is the same as embodiment 1.

Embodiment 3

[0035] The specific ratio of building formwork in parts by weight is: 30 parts of wood fiber, 10 parts of corn stalk fiber, 15 parts of fly ash, 8 parts of waste slag, 40 parts of waste plastic ABS, flame retardant decabromodiphenyl ether / Antimony oxide 12 parts, silane coupling agent 1.5 parts, stearic acid 1.5 parts, plasticizer dioctyl phthalate 1 part, carbon black 1 part, paraffin wax 1 part, anionic surfactant 2 parts, recycled rubber powder 7 parts, 1 part of antistatic agent, 0.5 part of antioxidant 1010.

[0036] Preparation method: According to the proportion, the above materials are blended, plasticized and granulated at 210°C, and molded or calendered at a temperature of 215°C to form a new building formwork;

[0037] The preparation method of described straw fiber is the same as embodiment 1.

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PUM

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Abstract

The invention provides a building template and a method for preparing the same. The invention particularly relates to various solid wastes: wood and stalk fibers, waste plastics, fly ash and waste slag are subjected to co-blending, plasticizing and granulation at a temperature of between 170 and 185 DEG C, and are subjected to die pressing or rolling at a temperature of between 185 and 200 to obtain the novel building template. For the obtained building template, the tensile strength is 18.0MPa, the bending strength is 22.0MPa, the impact strength is 7.0KJ / m<2>, and the application temperature is between 15 DEG C below zero and 55 DEG C; the building template can be repeatedly used for eight to twelve times, and can be recovered as a raw material for recycling by 100 percent, and the building template can be applied to buildings of facilities such as high-rise buildings, electric power stations, railway culverts, underground stock houses, bridges and the like.

Description

technical field [0001] The present invention relates to a method for preparing building templates from various solid wastes, in particular to a method for preparing building templates by using wood and straw fibers, waste plastics, fly ash, and waste slag through blending, plasticizing, granulating, and then melting, molding or calendering Methods. technical background [0002] my country is a country with relatively scarce resources per capita. With the rapid development of my country's economy, the society's demand for resources and energy is increasing. In order to ensure sustainable economic development and promote reasonable and effective recycling of resources, it is an important task before us. In 2007, my country's crop straw output reached more than 700 million tons, most of which were burned and only a small amount was used. With the development of the chemical industry and thermal power generation, in 2006, the output of waste plastics in my country was about 7 m...

Claims

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Application Information

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IPC IPC(8): C04B18/08C04B18/12C04B18/24C04B18/22
CPCY02W30/91
Inventor 莫志深于黎张会良
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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