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Production method for solid castoff composite multi-story building template

A solid waste, multi-storey building technology, applied in the on-site preparation of building components, solid waste management, construction and other directions, can solve the complex treatment of fiber length and moisture content, does not involve the use of fly ash, and cannot guarantee wood plastic Product size setting and other issues, to achieve the effect of good surface finish

Inactive Publication Date: 2009-05-13
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

No other waste plastics are used; ②The processing of wood powder from particle size to fiber length and its water content is complicated, which limits the full utilization of wood powder; ③No photodegradation resistance, impact resistance, mildew resistance, etc. Related additives, so these properties of the product are difficult to guarantee; ④ It does not involve the utilization of fly ash; ⑤ The molding method of the product cannot guarantee the dimensional setting of the wood-plastic product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Mix 40 parts of fly ash and 1.5 parts of silane coupling agent at high speed for 10 minutes at 80°C; mix 2 parts of EVA, 1 part of anionic surfactant, 1 part of stearic acid, 2 parts of paraffin, antioxidant 1010 0.6 parts, 4 parts of flame retardant, 0.4 parts of phosphite triester, 3 parts of carbon black, mixed with 100 parts of granulated waste plastic PE; mixed at 85°C for 10 minutes at high speed, and then mixed this material with the treated Fly ash is mixed and extruded through an extruder (head temperature is 190°C). Extrude 60 parts of wood flour, 40 parts of granulated waste plastic PE, 1.5 parts of acrylate, 1.5 parts of dioctyl phthalate, 1 part of stearic acid, 3 parts of paraffin, and 0.8 parts of pentachlorophenol Machine extrusion (head temperature: 190°C) to make wood-plastic mixture. Then put half of the extruded plastic ash mixture on the bottom layer of the mold, put the wood-plastic mixture on it, and put the other half of the plastic ash mixture ...

Embodiment 2

[0039] Mix 50 parts of fly ash and 2 parts of silane coupling agent at high speed for 10 minutes at 90°C; mix 100 parts of waste plastic PS after granulation with 2 parts of anionic surfactant, 1.5 parts of stearic acid, carbon black 2 parts, 4 parts of paraffin, 0.2 parts of antioxidant 1010, 3 parts of EVA, 3 parts of flame retardant, 0.1 part of triphosphite, add together, mix at 80 °C for 10 minutes at high speed, and then mix with the surface-treated The fly ash is mixed and extruded through an extruder (head temperature is 160°C). Extrude 40 parts of sawdust, 60 parts of granulated waste plastic PS, 2 parts of acrylate, 2 parts of dioctyl phthalate, 3 parts of stearic acid, 4 parts of paraffin, and 0.6 part of pentachlorophenol Machine extrusion (head temperature is 160°C), then put the wood-plastic mixture into a mold at 110°C, put half of the plastic-ash mixture on the bottom layer, put the wood-plastic mixture on it, and put the other half of the plastic on the top la...

Embodiment 3

[0040] Mix 30 parts of fly ash and 0.8 parts of silane coupling agent at high speed for 10 minutes at 70°C; mix 100 parts of granulated waste plastic PP with 0.5 parts of anionic surfactant, 1 part of stearic acid, and 3 parts of paraffin parts, 0.4 parts of antioxidant 1010, 1 part of EVA, 5 parts of carbon black, 0.3 parts of phosphite triester, 6 parts of flame retardant, mixed together at 100°C for 10 minutes at high speed; The fly ash is mixed and extruded through an extruder (head temperature is 200°C). 50 parts of sawdust, 50 parts of granulated waste plastic PP, 1.5 parts of acrylate, 0.5 part of dioctyl phthalate, 2 parts of stearic acid, 5 parts of paraffin, and 0.5 part of pentachlorophenol are passed through the extruder Extrude (head temperature is 200°C) to make wood-plastic mixture. Then put half of the extruded plastic ash mixture on the bottom layer of the mold, put the wood-plastic mixture on it, and put the other half of the plastic ash mixture on the upper...

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Abstract

The invention provides a method for preparing a solid waste composite multi-layer building formwork. The method comprises the following steps: wood powder, wood chips or sawdust and waste plastic are extruded and made into a wood plastic mixture which is used as an intermediate material of a product; the waste plastic and pulverized fuel ash are extruded and made into a plastic ash mixture which is used as a surface layer material of the product; and then a mold pressing or coextrusion method is adopted to obtain a novel composite board product with a wood plastic material as an intermediate layer and a plastic ash material as two outer layers. The compression strength of the prepared product can reach between 22 and 36MPa, the bending strength is between 15 and 28MPa, the bending modulus is between 450 and 980MPa, the breaking elongation rate is between 80 and 300 percent, the oxygen index is more than or equal to 25, the usage temperature is between 20 DEG C below zero and 55 DEG C, and the product has good mildew proofing, aging resistance, photodegradation resistance, wear resistance, corrosion resistance, and surface finish; and as a building formwork, the product can be repeatedly used for more than 20 times.

Description

technical field [0001] The invention belongs to a preparation method of solid waste composite multi-layer building formwork. Background technique [0002] my country is a country with poor forest resources, but a large amount of sawdust, sawdust and wood powder are not rationally used or discarded every year; and fly ash and waste plastics are wastes that seriously pollute the environment. Making full use of these solid wastes to develop high value-added products can reduce pollution, turn waste into wealth, and regenerate resources. It is a resource recycling project with obvious economic and environmental benefits. [0003] Chinese patents "01119861" and "02160123" respectively disclose inventions titled "a wood-plastic building template and its production and preparation method" and "a wood-plastic composite material and its preparation method and application". These two patents use: ① only pure PP or modified waste plastic PP. No other waste plastics are used; ②The pro...

Claims

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Application Information

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IPC IPC(8): E04G9/05B32B37/10B32B37/06B29C43/58C04B18/20B29C43/20B29C47/06C04B18/26C04B18/08
CPCY02W30/91
Inventor 莫志深于黎张会良张宏放
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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