Architectural joint filling material made from waste polyurethane and waste fiber, and its preparation method

A joint-filling material and polyurethane technology, applied in building insulation materials, building components, etc., can solve environmental pollution and other problems, and achieve the effect of improving economic value and low cost

Inactive Publication Date: 2008-01-30
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large amount of polyurethane waste has caused new environmental pollution, and new industrial waste resources have also emerged; in addition, various chemical fibers have also become resources for urban construction; due to the popularization and application of many new energy-saving building materials, more supporting equipment is required Materials are combined together to become an application system that is easy to use and has perfect performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: its composition ratio is as follows:

[0030] Waste polyurethane powder (80 mesh) 200g

[0031] Waste polypropylene fiber (5mm long) 61g

[0032] Acrylic Emulsion 416g

[0033] Sodium hexametaphosphate 40g

[0034] Sodium Benzoate 6g

[0035] Ethylene glycol 9.5g

[0036] Propylene glycol 45g

[0037] Polydimethylsiloxane 0.5g

[0038] Calcium carbonate 150g

[0039] Methylcellulose 20g

[0040] water 52g

[0041] Colorant 0.7g

[0042] According to the above ratio of raw materials, first mix waste polyurethane powder, polypropylene fiber and calcium carbonate evenly as component A, and then mix acrylic emulsion, sodium hexametaphosphate, sodium benzoate, ethylene glycol, propylene glycol, methyl cellulose and colorant Uniformly as component B, then mix component A and component B uniformly, finally add polydimethylsiloxane, water, and stir well to obtain the desired product. Its performance indicators are:

[0043] Drying time: 2h

[0044] Ad...

Embodiment 2

[0046] Embodiment 2: the group distribution ratio is as follows:

[0047] Waste polyurethane powder (60 mesh) 200g

[0048] Waste polypropylene fiber (4m long) 50g

[0049] Acrylic emulsion 410g

[0050] Sodium hexametaphosphate 45g

[0051] Sodium Benzoate 5g

[0052] Ethylene glycol 8g

[0053] Propylene glycol 45g

[0054] Polydimethylsiloxane 0.5g

[0055] Calcium carbonate 165g

[0056] Methylcellulose 18g

[0057] Water 53.5g

[0058] Colorant 0.9g

[0059] According to the above ratio of raw materials, first mix waste polyurethane powder, polypropylene fiber and calcium carbonate evenly as component A, and then mix acrylic emulsion, sodium hexametaphosphate, sodium benzoate, ethylene glycol, propylene glycol, methyl cellulose and colorant Uniformly as component B, then mix component A and component B uniformly, finally add polydimethylsiloxane, water, and stir well to obtain the desired product. Its performance indicators are:

[0060] Drying time: 2h

[00...

Embodiment 3

[0063] Embodiment 3: group distribution ratio is as follows:

[0064] Waste polyurethane powder (60 mesh) 205g

[0065] Waste polypropylene fiber (4mm long) 60g

[0066] Acrylic emulsion 400g

[0067] Sodium hexametaphosphate 50g

[0068] Sodium Benzoate 5g

[0069] Ethylene glycol 8g

[0070] Propylene glycol 45g

[0071] Dimethicone 0.6g

[0072] Calcium carbonate 170g

[0073] Methylcellulose 15g

[0074] Water 41.4g

[0075] Colorant 1.0g

[0076]According to the above ratio of raw materials, first mix waste polyurethane powder, polypropylene fiber and calcium carbonate evenly as component A, and then mix acrylic emulsion, sodium hexametaphosphate, sodium benzoate, ethylene glycol, propylene glycol, methyl cellulose and colorant Uniformly as component B, then mix component A and component B uniformly, finally add polydimethylsiloxane, water, and stir well to obtain the desired product. Its performance indicators are:

[0077] Drying time: 2h

[0078] Adhesion ...

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Abstract

The present invention belongs to the filed of building material technology, in particular, it relates to a building joint-filling material prepared by utilizing waste polyurethane and waste fibre and its preparation method. It is made up by using waste polyurethane and waste polypropylene fibre as aggregate, and mixing them with chemical raw materials of acrylic acid emulsion, sodium hexametaphosphate, sodium benzoate, ethylene glycol, propylene glycol, polydimethylsiloxane, methyl cellulose, calcium carbonate and colouring agent according to a certain mixing ratio.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a building joint filling material prepared by utilizing waste polyurethane and waste fibers and a preparation method thereof. Background technique [0002] With the rapid development of urban construction and environmental protection, it is necessary to call for various energy-saving, environmentally friendly and energy-saving building materials. Due to its excellent comprehensive physical and chemical properties, polyurethane wall insulation materials have been more and more widely used in energy-saving insulation materials in recent years. However, a large amount of polyurethane waste has caused new environmental pollution, and new industrial waste resources have also emerged; in addition, various chemical fibers have also become resources for urban construction; due to the popularization and application of many new energy-saving building materials, more ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08K5/09E04B1/68C08L75/04C08L83/14C08L1/00
Inventor 曹民干
Owner TONGJI UNIV
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