Regenerated powder-based inorganic cementing material toughening and crack-reducing foaming agent and application thereof

A technology of inorganic cementitious material and foaming agent, which is applied in the field of inorganic cementitious material toughening and crack reduction foaming agent, can solve the problems of gas environment pollution and high energy consumption of incineration method, achieves simple preparation, good foam stabilization effect, Excellent performance

Active Publication Date: 2021-04-30
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a large amount of FRP waste piled up in our country. This phenomenon needs to be solved urgently. The energy consumption of the incineration method is too high, and the treatment by chemical materials may produce gas and pollute the environment.

Method used

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  • Regenerated powder-based inorganic cementing material toughening and crack-reducing foaming agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present embodiment provides a novel blowing agent, the parts by weight of its components are as follows:

[0032] Component A: 90 parts of recycled FRP powder

[0033] B component: 10 parts of sodium hydroxide

[0034] Component C: 4 parts of sodium polyacrylate

[0035] Component D: 8 parts of sodium dodecylsulfonate

[0036] Component E: 3 parts of hydroxypropyl methylcellulose

[0037] The A component and the B component are foaming components;

[0038] The components C, D and E are foam stabilizing components.

[0039]During the preparation process of the regenerated FRP powder, the cutting size of the regenerated FRP cutting step is a cube with a side length of 80 mm. In the preparation process of recycled FRP powder, VI-9000 vertical shaft crusher is used in the raw FRP crushing process, and the crushing condition is 950-1050r / min. First crush for 3 minutes to complete the preliminary crushing. After the preliminary crushing is completed, the glass fibe...

Embodiment 2

[0046] The present embodiment provides a novel blowing agent, the parts by weight of its components are as follows:

[0047] Component A: 85 parts of recycled FRP powder

[0048] Component B: 8 parts of sodium hydroxide

[0049] C component: 3 parts of sodium polyacrylate

[0050] Component D: 9 parts of sodium dodecylsulfonate

[0051] E component: 4 parts of hydroxypropyl methylcellulose

[0052] The A component and the B component are foaming components;

[0053] The components C, D and E are foam stabilizing components.

[0054] Its component characteristics are identical with embodiment 1

Embodiment 3

[0056] The invention provides a novel blowing agent, the parts by weight of its components are as follows:

[0057] Component A: 94 parts of recycled FRP powder

[0058] B component: 13 parts of sodium hydroxide

[0059] C component: 4.5 parts of sodium polyacrylate

[0060] Component D: 8.5 parts of sodium dodecylsulfonate

[0061] Component E: 4.5 parts of hydroxypropyl methylcellulose

[0062] The A component and the B component are foaming components;

[0063] The components C, D and E are foam stabilizing components.

[0064] Its component characteristics are identical with embodiment 1

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Abstract

The invention discloses a regenerated powder-based inorganic cementing material toughening and crack-reducing foaming agent and application, the foaming agent comprises a foaming component composed of regenerated glass fiber reinforced plastic powder and strong base powder, and the strong base powder in the foaming component accounts for 0.5-20 wt% of the regenerated glass fiber reinforced plastic powder. Glass powder in regenerated glass steel powder reacts with sodium hydroxide, so that the regenerated glass steel powder has activity and becomes a part of a cementing material. Resin particles in the regenerated glass fiber reinforced plastic powder have higher toughness than a cementing material, and toughening and crack reduction of the cementing material can be achieved. A small part of other fillers can be used as a micro-filler. The foaming agent disclosed by the invention is simple to prepare. Pre-foaming is not needed in the using process, the foaming process is simple, mixing with an inorganic cementing material is easy, generated bubbles are uniform and stable, and the reinforcing and toughening effects on the inorganic cementing material are large. The prepared foaming material is low in density, low in air hole communication rate, good in heat preservation and insulation performance, high in strength and resistant to cracking.

Description

technical field [0001] The invention relates to the technical field of foaming agents for building cement materials, in particular to a recycled powder-based inorganic cementitious material toughening and cracking foaming agent and its application. The foaming agent can be used for foamed concrete products and foamed geopolymerization products and other systems. Background technique [0002] Inorganic gelled foaming materials need to introduce a large amount of uniform and closed foam during the production process. At present, the common foaming methods mainly include physical foaming and chemical foaming. Physical foaming needs to prepare foam first and then mix it with slurry. Compared with chemical foaming, all materials can be made by stirring once. , the manufacturing process is more convenient. The most common chemical foaming method so far is mainly to use aluminum powder and H2O2 for foaming. The foam produced by this foaming method has poor stability and the foam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/10C04B24/38C04B28/04C04B103/42C04B111/40
CPCC04B28/04C04B40/0039C04B2103/42C04B2111/40C04B2201/20C04B2201/32C04B2201/50C04B24/283C04B24/383C04B24/2641C04B24/16C04B22/062C04B38/10C04B38/0074C04B38/0067
Inventor 张默周博宇沈思
Owner HEBEI UNIV OF TECH
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