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Regenerated powder-based inorganic gelling material toughening and cracking foaming agent and its application

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 high energy consumption of incineration method, gas environment pollution, etc., and achieves good foam stabilization effect and simple preparation. , easy-to-mix effects

Active Publication Date: 2021-07-27
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 gelling material toughening and cracking foaming agent and its application

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 recycled powder-based inorganic gelling material toughening and cracking-reducing foaming agent and its application. The composition of the foaming agent includes: a foaming component composed of recycled glass fiber reinforced plastic powder and strong alkali powder. Among the foaming components, strong The percentage by weight of the alkali powder in the regenerated FRP powder is 0.5-20%. The glass powder in the regenerated glass powder reacts with sodium hydroxide to make it active and become a part of the gelling material. Among them, the resin particles in the recycled FRP powder have better toughness than that of the cementitious material, which can realize the toughening and crack reduction of the cementitious material. Other very few fillers can be used as microfillers. The foaming agent of the present invention is simple to prepare. There is no need to pre-foam during use, the foaming process is simple, it is easy to mix with inorganic gelling materials, the bubbles produced are uniform and stable, and it has a greater strengthening and toughening effect on inorganic gelling materials. The resulting foamed material has low density, low pore connectivity, good thermal insulation performance, and high strength and crack resistance.

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 Patents(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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