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A method of making flame-retardant insulation material from waste foam

A waste foam, flame retardant and thermal insulation technology, applied in solid waste management, sustainable waste treatment, climate change adaptation, etc. Excellent structural firmness, excellent chemical resistance, and significant strength improvement

Inactive Publication Date: 2015-08-26
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this plastic material also brings the following problems: First, it needs to consume non-renewable petroleum resources that are depleted day by day; second, the disposable products produced with it, such as packaging products, generate a large amount of urban waste and pollute the environment
But it generally has the following disadvantages: (1) It is easy to burn. Many of the frequent engineering fires in recent years are caused by thermal insulation materials, such as the Jinan Stadium Project, the new CCTV building, and the Shanghai high-rise apartment building fires. (2) The shock absorption performance is poor, and it is easy to oxidize and corrode, and the service life is short. Generally, it will gradually lose its waterproof and heat preservation functions in two to three years.
(3) The structure of the thermal insulation system is not strong enough, and the building thermal insulation projects in many cities have experienced cracking and falling off.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add an appropriate amount of water to the single-horizontal shaft mortar mixer, select 150 parts of 425# cement, 4 parts of gypsum, 8 parts of water glass, 0.1 part of foaming agent sodium dodecylbenzene xanthate, and 2.5 parts of concrete anti-crack and anti-seepage agent , 3.5 parts of tackifier dialkyl dithiophosphate zinc salt, add in the mixer and mix evenly to form a slurry with good workability. Make the density 30-45kg / m 3 Polyurethane foam is processed into foam particles with a particle size of about 1mm and a density of 30-40kg / m 3 The phenolic resin foam is processed into foam particles with a particle size of about 3 mm, and both polyurethane foam and phenolic resin foam are recycled waste plastic foams. Mix polyurethane foam and phenolic resin foam at a ratio of 1:1, select a total of 160 parts by weight and add them to the slurry, add 0.5% silane coupling agent, and mix well. Pour the stirred material into a mold with a specification of 1000×500×30, pou...

Embodiment 2

[0023] Add an appropriate amount of water to the single-horizontal shaft mortar mixer, select 170 parts of 425# cement, 6 parts of gypsum, 10 parts of water glass, 0.15 parts of foaming agent sodium dodecylbenzenesulfonate, and 4 parts of concrete anti-crack and anti-seepage agent , 10 parts of tackifier dialkyl dithiophosphate zinc salt, add into a mixer and mix evenly to form a slurry with good workability. Make the density 30-45kg / m 3 Polyurethane foam is processed into foam particles with a particle size of about 1mm and foam particles with a particle size of about 3mm, with a density of 30-40kg / m 3 The phenolic resin foam is processed into foam particles with a particle size of about 10 mm, and both polyurethane foam and phenolic resin foam are recycled waste plastic foams. Mix the three types of foam particles in a ratio of 1:1:1, select a total of 175 parts by weight and add them to the slurry, add 1% silane coupling agent, and mix well. Pour the stirred material into...

Embodiment 3

[0025] Add appropriate amount of water to the single-horizontal shaft mortar mixer, select 180 parts of 425# cement, 7 parts of gypsum, 17 parts of water glass, 0.2 parts of foaming agent sodium dodecylbenzenesulfonate, and 5.5 parts of concrete anti-crack and anti-seepage agent , 13 parts of tackifier dialkyl dithiophosphate zinc salt, add in a mixer and mix evenly to form a slurry with good workability. Make the density 30-45kg / m 3 Polyurethane foam is processed into foam particles with a particle size of about 3mm and foam particles with a particle size of about 10mm, with a density of 30-40kg / m 3 The phenolic resin foam is processed into foam particles with a particle size of about 30 mm, and both polyurethane foam and phenolic resin foam are recycled waste plastic foams. Mix the three types of foam particles in a ratio of 1:1:1, select 190 parts by weight and add them to the slurry, add 2% silane coupling agent, and mix well. Pour the stirred material into a mold with a...

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Abstract

The invention discloses a method for manufacturing a flame-retardant heat preservation material by employing waste foam. The method comprises the steps: with the recycled waste foam as a lightweight aggregate, cement mortar as a cementitious material, and mixing with a certain amount of a foaming agent, a coupling agent, an anti-cracking additive and a tackifier, then mixing, stirring, and pouring into a plate-type novel material. The flame-retardant heat preservation material has the performance advantages of no toxicity, no pollution, low heat conductivity, high compressive strength, strong adhesive force and the like, and is applied to building external walls, light partition walls, floor heat insulation, double-wall heat insulation and preservation, furniture plates, packaging materials and the like. The material of the invention is the novel heat insulation material having the advantages of strong water resistance, good oxidation resistance, good corrosion resistance, good heat insulation effect and high flame-retardant effect.

Description

technical field [0001] The invention relates to resource recycling technology, in particular to a method for manufacturing flame-retardant and heat-insulating materials from waste foam. Background technique [0002] Population growth, urbanization progress, and the lifestyle of mass production and mass consumption are rapidly depleting the earth's resources, while the rate of recycling and reuse of resources is very low. The waste generated by human economic and social activities has far exceeded what nature can consume. ability. As a result, the destruction of the ozone layer, acid rain, water pollution, climate warming, and the sharp deterioration of the earth's environment... These directly threaten the sustainable development of human society and economy. In order to obtain the sustainable development of social economy, human beings must establish a circular economic society. [0003] As one of the major inventions of mankind in the 20th century, plastic materials hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B18/20
CPCY02W30/96Y02A30/244Y02W30/91
Inventor 陈星艳陶涛胡云楚袁利萍陈旬吴桂红吴义强
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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