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Binder, and preparation method thereof

A binder and modifying agent technology, applied in the field of binder and its preparation, can solve the problems of compact impermeability and poor rolling crack resistance, achieve good impermeability and crack resistance, short steps, Simple operation effect

Inactive Publication Date: 2017-10-20
何明驹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a binder which is environmentally friendly, healthy and high in strength, and can completely solve the technical problems of the existing binders such as poor compactness, impermeability and rolling crack resistance.

Method used

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  • Binder, and preparation method thereof

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Effect test

preparation example Construction

[0030] It should be noted that there is no particular order for the preparation of the modifier, the preparation of magnesium oxide, and the preparation of the magnesium chloride solution, and one substance can be prepared first at will, or can be prepared at the same time.

[0031] S2, preparing binder;

[0032] Mix the magnesium chloride solution, magnesium oxide, modifier and sawdust according to the mass ratio of 1:0.7-1.1:3-5:15-21 and stir evenly, and use the bonding agent within 0.5-6 hours after mixing agent. The magnesium chloride solution, the magnesium oxide, the modifier and the sawdust adopt the above-mentioned proportions to ensure a fast-forming adhesive with excellent adhesive performance. After research by the inventor, it is found that the adhesive must be used within 0.5-6 hours after the preparation of the adhesive, otherwise the structure of the adhesive will change, which will cause the adhesive to lose its bonding function and crack resistance and impe...

Embodiment 1

[0038] This embodiment provides a binder, which is mainly made of 1g magnesium chloride solution, 0.8g magnesium oxide, 2g modifier and 1.5g wood chips. Among them, the magnesium chloride solution includes 0.23g magnesium chloride and 0.77g water; the sawdust is the wood surface; the magnesium oxide includes 0.24g active magnesium oxide and 0.56g lightly burned magnesium oxide; the modifier mainly consists of 0.7g acid solution, 0.3g polyethylene Diol, 0.3g formaldehyde and 0.7g catechol; its acid solution is dilute hydrochloric acid with a mass percentage of 0.5%.

[0039] Present embodiment also provides a kind of method for preparing adhesive:

[0040] S1, prepare magnesium chloride solution, magnesium oxide and modifier respectively;

[0041] Add 0.23 g of magnesium chloride to 0.77 g of water and stir until the magnesium chloride is completely dissolved, thereby obtaining a magnesium chloride solution.

[0042] The magnesia was prepared by mixing 0.24g of active magnesi...

Embodiment 2

[0047] This embodiment provides a binder, which is mainly made of 1g of magnesium chloride solution, 1g of magnesium oxide, 2.5g of modifier and 3g of sawdust. Among them, the magnesium chloride solution includes 0.33g magnesium chloride and 0.67g water; the sawdust is plant straw powder; the magnesium oxide includes 0.15g active magnesium oxide and 0.85g lightly burned magnesium oxide; the modifier mainly consists of 0.51g acid solution, 0.41g polyethylene Diol, 0.21g formaldehyde, 0.61g catechol and 0.76 triethanolamine; its acid solution is dilute hydrochloric acid with a mass percentage of 1.5%.

[0048] Present embodiment also provides a kind of method for preparing adhesive:

[0049] S1, prepare magnesium chloride solution, magnesium oxide and modifier respectively;

[0050] Add 0.33 g of magnesium chloride to 0.67 g of water and stir until the magnesium chloride is completely dissolved, thereby obtaining a magnesium chloride solution.

[0051] The magnesia was prepare...

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Abstract

The invention belongs to the field of building material, and especially relates to a binder, and a preparation method thereof. The binder is mainly prepared from a magnesium chloride solution, magnesium oxide, a modifying agent, and wood chip at a mass ratio of 1:0.8-1.2:1-2.5:1.5-4.5. The modifying agent is mainly prepared from an acid solution, polyethylene glycol, formaldehyde, and o-dihydroxybenzene. The binder is high in strength, adhesive properties, anti-permeability, and crack resistance, and no efflorescence is caused.

Description

technical field [0001] The invention relates to the field of building materials, and in particular to a binder and a preparation method thereof. Background technique [0002] In industrial buildings, steel plates or steel bars are generally used to weld two relatively independent structures together. The use of welded connections increases production costs and increases safety risks. However, the use of adhesives for bonding is likely to cause weak bonding, and cracks and frosting are likely to occur at the bonding place, which may easily cause production accidents. Moreover, the compact impermeability and rolling crack resistance of the existing binder are poor. Contents of the invention [0003] The object of the present invention is to provide a binder which is environmentally friendly, healthy and high in strength, and can completely solve the technical problems of the existing binders such as poor compactness, impermeability and rolling crack resistance. [0004] An...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/32
Inventor 何明驹
Owner 何明驹
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